RXV 681
Uploaded by
Fernando PinheiroRXV 681
Uploaded by
Fernando PinheiroAV RECEIVER
RX-V681/RX-A760 SERVICE MANUAL
Note:
When the DIGITAL P.C.B. or IC82 on DIGITAL (1) P.C.B. is replaced, this unit will display Internal Error and will not
operate properly. The model name MUST be written to the backup IC (EEPROM: IC82 on DIGITAL (1) P.C.B.) to
have proper operation. (For detailed procedure, refer to related Service News or Service Bulletin. Or contact your
local Yamaha representative.)
RX-V681/RX-A760
■ CONTENTS
TO SERVICE PERSONNEL............................................ 2 DISPLAY DATA............................................................. 73
FRONT PANELS............................................................. 3 IC DATA......................................................................... 75
REAR PANELS............................................................... 4 BLOCK DIAGRAMS..................................................... 83
REMOTE CONTROL PANEL........................................ 10 WIRING DIAGRAM....................................................... 87
SPECIFICATIONS......................................................... 11 PRINTED CIRCUIT BOARDS....................................... 88
INTERNAL VIEW.......................................................... 15 PIN CONNECTION DIAGRAMS................................. 110
SERVICE PRECAUTIONS............................................ 16 SCHEMATIC DIAGRAMS........................................... 111
DISASSEMBLY PROCEDURES................................... 17 REPLACEMENT PARTS LIST.................................... 127
UPDATING FIRMWARE................................................ 27 REMOTE CONTROL................................................... 156
SELF-DIAGNOSTIC FUNCTION.................................. 30 FIRMWARE UPDATING PROCEDURE...................... 158
POWER AMPLIFIER ADJUSTMENT........................... 72
1013 6 7
'16.05
RX-V681/RX-A760
■ TO SERVICE PERSONNEL AC LEAKAGE
WALL EQUIPMENT TESTER OR
1. Critical Components Information
OUTLET UNDER TEST EQUIVALENT
Components having special characteristics are marked ⚠ and
must be replaced with parts having specifications equal to
those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify INSULATING
that all exposed conductive surfaces are properly insulated TABLE
from supply circuits.
• Meter impedance should be equivalent to 1500 ohms shunted • Leakage current must not exceed 0.5mA.
by 0.15 μF. • Be sure to test for leakage with the AC plug in both polarities.
For U model
“CAUTION”
“F3701: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A,
250V FUSE.”
“F3702: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A,
125V FUSE.”
For C model
CAUTION
F3701: REPLACE WITH SAME TYPE 2A, 250V FUSE.
F3702: REPLACE WITH SAME TYPE 8A, 125V FUSE.
ATTENTION
F3701: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 2A, 250V.
F3702: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 8A, 125V.
CALIFORNIA PROPOSITION 65 WARNING
This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or ex-
pose eyes to solder/flux vapor!
RX-V681/RX-A760
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.
About lead free solder
All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.
Among some types of lead free solder currently available, it is recommended to use one of the following types for the re-
pair work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
As the melting point temperature of the lead free solder is about 30°C to 40°C (50°F to 70°F) higher than that of the
lead solder, be sure to use a soldering iron suitable to each solder.
2
RX-V681/RX-A760
■ FRONT PANELS
RX-V681
RX-A760
RX-V681/RX-A760
3
RX-V681/RX-A760
■ REAR PANELS
RX-V681 (U, C models)
RX-V681 (R model)
RX-V681/RX-A760
RX-V681 (S model)
4
RX-V681/RX-A760
RX-V681 (T model)
RX-V681 (A model)
RX-V681/RX-A760
RX-V681 (B, G models)
5
RX-V681/RX-A760
RX-V681 (F model)
RX-V681 (L model)
RX-V681/RX-A760
RX-V681 (H model)
6
RX-V681/RX-A760
RX-V681 (V model)
RX-A760 (U, C models)
RX-V681/RX-A760
RX-A760 (R model)
7
RX-V681/RX-A760
RX-A760 (T model)
RX-A760 (A model)
RX-V681/RX-A760
RX-A760 (G, F models)
8
RX-V681/RX-A760
RX-A760 (L model)
RX-V681/RX-A760
9
RX-V681/RX-A760
■ REMOTE CONTROL PANEL
RAV537
Remote control sheet
(T model)
RX-V681/RX-A760
10
RX-V681/RX-A760
■ SPECIFICATIONS
■ Audio Section Total Harmonic Distortion
Rated Output Power (Power Amp. Section) (20 Hz to 20 kHz, 10 V)
PHONO (MM) to FRONT SP OUT................................. 0.02 % or less
(1 kHz, 0.9 % THD)
(20 Hz to 20 kHz, 50 W/8 ohms)
– 1 channel driven –
AV5 etc. (PURE DIRECT) to FRONT SP OUT............... 0.06 % or less
U, C, R, T, A, B, G, F, L, V, S, H models (8 ohms)
FRONT L/R...................................................................125 W/ch Signal to Noise Ratio (IHF-A Network)
CENTER.............................................................................125 W (Input shorted, 35 mV)
SURROUND L/R...........................................................125 W/ch PHONO (MM) to FRONT SP OUT................................. 96 dB or more
SURROUND BACK L/R................................................125 W/ch
(Input 1 k-ohm shorted)
G, F, L models (4 ohms) AV5 etc. (PURE DIRECT) to SP OUT.......................... 110 dB or more
FRONT L/R...................................................................150 W/ch
Residual Noise (IHF-A Network)
– 2 channels driven simultaneously –
FRONT L/R to SP OUT.................................................. 150 μV or less
U, C models (8 ohms)
FRONT L/R......................................................... 105 W + 105 W Channel Separation (1 kHz / 10 kHz)
CENTER.............................................................................105 W PHONO (Input shorted)...................... 60 dB or more / 55 dB or more
SURROUND L/R................................................. 105 W + 105 W AV5 etc. (Input 1 k-ohm shorted)
SURROUND BACK L/R...................................... 105 W + 105 W ......................................................... 70 dB or more / 50 dB or more
(20 Hz to 20 kHz, 0.06 % THD) Volume Control/Step
– 2 channels driven simultaneously – (Main Zone)........................MUTE / -80 dB to +16.5 dB / 0.5 dB step
U, C, R, T, A, B, G, F, L, V, S, H models (8 ohms) (Zone 2)..............................MUTE / -80 dB to +10.0 dB / 0.5 dB step
FRONT L/R............................................................. 90 W + 90 W
Tone Control Characteristics
Maximum Effective Output Power (JEITA) Bass
[U, C, R, T, A, B, G, F, L, V, S, H models] Boost/Cut........................................... ±6 dB / 0.5 dB step, at 50 Hz
(1 channel driven, 1 kHz, 10 % THD, 6 ohms) Turnover frequency................................................................350 Hz
FRONT L/R............................................................................130 W/ch
Treble
CENTER.....................................................................................130 W
Boost/Cut......................................... ±6 dB / 0.5 dB step, at 20 kHz
SURROUND L/R...................................................................130 W/ch
Turnover frequency...............................................................3.5 kHz
SURROUND BACK L/R........................................................130 W/ch
(1 channel driven, 1 kHz, 10 % THD, 8 ohms) Filter Characteristics
FRONT L/R............................................................................150 W/ch FRONT, CENTER, SURROUND, SURROUND BACK small (H.P.F.)
CENTER.....................................................................................150 W .......................fc=40/60/80/90/100/110/120/160/200 Hz, 12 dB/oct.
SURROUND L/R...................................................................150 W/ch SUBWOOFER small (L.P.F.)
SURROUND BACK L/R........................................................150 W/ch .......................fc=40/60/80/90/100/110/120/160/200 Hz, 24 dB/oct.
Dynamic Power Per Channel (IHF) Optical Jack, Coaxial Jack Support Frequencies
RX-V681/RX-A760
FRONT L/R (1 channel driven) ..................................................................................32 kHz to 96 kHz
(8 / 6 / 4 / 2 ohms)........................................125 / 165 / 190 / 235 W
Damping Factor (20 Hz to 20 kHz, 8 ohms) ■ Video Section
FRONT L/R to SPEAKER-A...............................................100 or more Video Signal Type
........................................................................... NTSC / PAL / SECAM
Input Sensitivity/Input Impedance (1 kHz, 100 W/8 ohms)
AV5 etc................................................................ 200 mV / 47 k-ohms Composite Video Signal Level
................................................................................. 1 Vp-p / 75 ohms
Maximum Input Signal (1 kHz, 0.5 % THD)
AV5 etc. (EFFECT ON).................................................................2.3 V Component Video Signal Level
Y............................................................................... 1 Vp-p / 75 ohms
Output Level/Output Impedance
Pb/Pr..................................................................... 0.7 Vp-p / 75 ohms
SUBWOOFER (2 ch stereo and FRONT SP: small)
................................................................................ 1 V / 1.2 k-ohms Video Maximum Input Level
ZONE2 OUT........................................................ 470 mV / 1.2 k-ohms .................................................................................. 1.5 Vp-p or more
Headphone Impedance Video Signal to Noise Ratio
..................................................................................16 ohms or more ...................................................................................... 50 dB or more
Frequency Response (10 Hz to 100 kHz) Monitor Out Frequency Response
AV5 etc., FRONT.................................................................... 0 / -3 dB Component video signal level......................... 5 Hz to 60 MHz, -3 dB
RIAA Equalization Deviation
PHONO (MM)..................................................................... 0 ± 0.5 dB
11
RX-V681/RX-A760
■ FM Section Maximum Power Consumption [R, L, V, S, H models]
...................................................................................................590 W
Tuning Range
U, C models............................................................87.5 to 107.9 MHz Dimension (W x H x D)
R, L, V, S, H models....................87.5 to 108.0 / 87.50 to 108.00 MHz [RX-V681]
T, A, B, G, F models............................................87.50 to 108.00 MHz ...............................435 x 171 x 378 mm (17-1/8" x 6-3/4" x 14-7/8")
[RX-A760]
50 dB Quieting Sensitivity (IHF) (1 kHz, 100 % MOD.) ..................................... 435 x 171 x 380 mm (17-1/8" x 6-3/4" x 15")
Mono............................................................................3 μV (20.8 dBf)
Reference Dimension (with wireless antenna upright)
Signal to Noise Ratio (IHF) [RX-V681]
Mono.......................................................................................... 69 dB ...............................435 x 234 x 378 mm (17-1/8" x 9-1/4" x 14-7/8")
Stereo........................................................................................ 67 dB [RX-A760]
..................................... 435 x 234 x 380 mm (17-1/8" x 9-1/4" x 15")
Harmonic Distortion (1 kHz)
Mono...........................................................................................0.5 % Weight
Stereo.........................................................................................0.6 % [RX-V681]
.............................................................................10.0 kg (22.1 lbs.)
Antenna Input [RX-A760]
........................................................................... 75 ohms unbalanced .............................................................................10.5 kg (23.2 lbs.)
Finish
■ AM Section [RX-V681]
Tuning Range T model............................................................................ Gold color
U, C models..............................................................530 to 1,710 kHz U, C, R, T, A, B, G, F, L, V, S, H models.......................... Black color
R, L, V, S, H models...........................530 to 1,710 / 531 to 1,611 kHz B, G, F models........................................................... Titanium color
T, A, B, G, F models..................................................531 to 1,611 kHz [RX-A760]
U, C, R, T, A, B, G, F, L models....................................... Black color
Antenna
.......................................................................................Loop antenna Accessories
Remote control............................................................................... x 1
Batteries (R03, AAA, UM-4)............................................................ x 2
■ General
FM antenna (1.4 m)........................................................................ x 1
Power Supply AM antenna (1 m)........................................................................... x 1
U, C models...............................................................AC 120 V, 60 Hz YPAO microphone (6.0 m).............................................................. x 1
R, V, S models................................ AC 110–120/220–240 V, 50/60 Hz Remote control sheet (T model)..................................................... x 1
T model......................................................................AC 220 V, 50 Hz Antenna isolator (T model)............................................................. x 1
A model.....................................................................AC 240 V, 50 Hz Power cable (2.0 m) (RX-A760)...................................................... x 1
B, G, F models...........................................................AC 230 V, 50 Hz
L, H models.................................................. AC 220–240 V, 50/60 Hz
* Specifications are subject to change without notice.
Power Consumption
RX-V681/RX-A760
U, C models...............................................................................400 W
R, T, L, V, S, H models...............................................................270 W U.........................U.S.A. model G.................. European model
A, B, G, F models......................................................................300 W C.................. Canadian model F..................... Russian model
R..................... General model L................. Singapore model
Standby Power Consumption (reference data) T.....................Chinese model V....................... Taiwan model
HDMI control: OFF / Standby through: OFF A..................Australian model S....................Brazilian model
.................................................................................................0.1 W B........................British model H............................Thai model
HDMI control: ON / Standby through: ON
INPUT: HDMI1 (HDMI no signal)
..............................................................................................0.4 W
HDMI control: ON / Standby through: AUTO
HDMI no signal & no CEC for 8 hours
..............................................................................................1.1 W
Network standby: ON
(Wired).....................................................................................2.1 W
(Wi-Fi).......................................................................................2.4 W
(Wireless Direct).......................................................................2.4 W
(Bluetooth)...............................................................................2.1 W
HDMI control: ON / Standby through: ON
Network Standby: ON
(Wireless Direct).......................................................................3.1 W
12
RX-V681/RX-A760
Manufactured under license from Dolby Laboratories. Dolby, Dolby
Atmos, Dolby Surround, and the double-D symbol are trademarks of DLNA ™ and DLNA CERTIFIED ™ are trademarks or registered trademarks
Dolby Laboratories. of Digital Living Network Alliance. All rights reserved. Unauthorized use is
strictly prohibited.
Windows ™
For DTS patents, see http://patents.dts.com. Manufactured under license Windows is a registered trademark of Microsoft Corporation in the United
from DTS, Inc. DTS, the Symbol, DTS in combination with the Symbol, States and other countries.
DTS: X, and the DTS:X logo are registered trademarks or trademarks
of DTS, Inc. in the United States and/or other countries. © DTS, Inc. All Internet Explorer, Windows Media Audio and Windows Media Player are
Rights Reserved. either registered trademarks or trademarks of Microsoft Corporation in
the United States and/or other countries.
Android ™ Google Play ™
Android and Google Play are trademarks of Google Inc.
Supports iOS 7 or later for setup using Wireless Accessory Configuration.
Made for iPod, Made for iPhone, and Made for iPad mean that an
electronic accessory has been designed to connect specifically to iPod,
The Wi-Fi CERTIFIED Logo is a certification mark of the Wi-Fi Alliance.
iPhone, or iPad, respectively, and has been certified by the developer to
The Wi-Fi Protected Setup Identifier Mark is a mark of the Wi-Fi Alliance.
meet Apple performance standards.
Apple is not responsible for the operation of this device or its compliance
with safety and regulatory standards.
Please note that the use of this accessory with iPod, iPhone, or iPad may
affect wireless performance. MusicCast is a trademark or registered trademark of Yamaha Corporation.
iTunes, AirPlay, iPad, iPhone, iPod, and iPod touch are trademarks of
Apple Inc., registered in the U.S. and other countries. Google Noto Fonts
iPad Air and iPad mini are trademarks of Apple Inc. Copyright © 2012 Google Inc. All rights reserved.
App Store is a service mark of Apple Inc. Licensed under the Apache License, Version 2.0 (the License ); you may
not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
The Bluetooth® word mark and logos are registered trademarks owned by distributed under the License is distributed on an AS IS BASIS,
Bluetooth SIG, Inc. and any use of such marks by Yamaha Corporation is WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
under license. or implied.
Bluetooth protocol stack (Blue SDK) See the License for the specific language governing permissions and
limitations under the License.
Copyright 1999-2014 OpenSynergy GmbH
RX-V681/RX-A760
All rights reserved. All unpublished rights reserved. Explanations regarding GPL
This product utilizes GPL/LGPL open-source software in some sections.
You have the right to obtain, duplicate, modify, and redistribute this
open-source code only. For information on GPL/LGPL open source
HDMI, the HDMI Logo, and High-Definition Multimedia Interface are software, how to obtain it, and the GPL/LGPL license, refer to the Yamaha
trademarks or registered trademarks of HDMI Licensing LLC in the United Corporation website
States and other countries. (http://download.yamaha.com/sourcecodes/musiccast/).
x.v.Color is a trademark of Sony Corporation.
SILENT CINEMA is a trademark of Yamaha Corporation.
13
RX-V681/RX-A760
14
59 193(7-5/8") 72
(2-1/4") (2-7/8")
50
(2")
Top view
Front view
• DIMENSIONS
RX-V681/RX-A760
Ø 60
435 (17-1/8")
335 (13-1/4")
RX-V681
21 150 (5-7/8") 18 325 (12-3/4") 35
(7/8") 171(6-3/4") (3/4") 378 (14-7/8") (1-3/8")
Unit: mm (inch)
234 (9-1/4")
59 193(7-5/8") 72
(2-1/4") (2-7/8")
50
(2")
Top view
Front view
Ø 60
222.5 (8-3/4")
173 (6-3/4")
435 (17-1/8")
335 (13-1/4")
RX-A760
Ø 48/18
212.5 (8-3/8")
21 150 (6") 21 324 (12-3/4") 35
(7/8") 171(6-3/4") (7/8") 380 (15") (1-3/8")
Unit: mm (inch)
234 (9-1/4")
RX-V681/RX-A760
■ INTERNAL VIEW
RX-V681
Top view
1 2 3 4 5 6 78 9
a OPERATION (3) P.C.B.
b MAIN (2) P.C.B. (R, V, S models)
c OPERATION (8) P.C.B.
d Network Module
e DIGITAL (1) P.C.B.
f AM/FM TUNER
g OPERATION (2) P.C.B.
h OPERATION (9) P.C.B.
i OPERATION (4) P.C.B.
j MAIN (5) P.C.B.
k MAIN (4) P.C.B.
l MAIN (3) P.C.B.
m MAIN (1) P.C.B.
n MAIN (6) P.C.B.
o POWER TRANSFORMER
p OPERATION (7) P.C.B.
o n m l k j
q OPERATION (6) P.C.B.
Front view r OPERATION (1) P.C.B.
s DIGITAL (2) P.C.B.
t OPERATION (5) P.C.B.
RX-V681/RX-A760
p q r s t
15
RX-V681/RX-A760
RX-A760
Top view
1 2 3 4 5 67 8
a OPERATION (3) P.C.B.
b OPERATION (8) P.C.B.
c Network Module
d DIGITAL (1) P.C.B.
e AM/FM TUNER
f OPERATION (2) P.C.B.
g OPERATION (9) P.C.B.
h OPERATION (4) P.C.B.
i MAIN (5) P.C.B.
j MAIN (4) P.C.B.
k MAIN (3) P.C.B.
l MAIN (1) P.C.B.
m MAIN (6) P.C.B.
n POWER TRANSFORMER
o OPERATION (5) P.C.B.
p OPERATION (1) P.C.B.
n m l k j 9
q OPERATION (12) P.C.B.
Front view r DIGITAL (2) P.C.B.
o p s OPERATION (11) P.C.B.
t OPERATION (6) P.C.B.
u OPERATION (7) P.C.B.
v OPERATION (10) P.C.B.
RX-V681/RX-A760
v u t s r q
■ SERVICE PRECAUTIONS
Safety measures
• Some internal parts in this product contain high voltages and are dangerous.
Be sure to take safety measures during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge
remains and a high voltage continues to exist there.
Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indi-
cated below to discharge electricity.
The time required for discharging is about 30 seconds per each.
C1084 and C1085 on MAIN (1) P.C.B.
C3706 on OPERATION (3) P.C.B.
For details, refer to PRINTED CIRCUIT BOARDS .
16
RX-V681/RX-A760
■ DISASSEMBLY PROCEDURES
RX-V681
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Top Cover
a. Remove 4 screws (1) and 5 screws (2). (Fig. 1)
b. Lift the rear side of the top cover to remove it. (Fig. 1)
2. Removal of Front Panel Unit
a. Remove 6 screws (3), and remove W301 and W307. (Fig. 1)
b. Remove CB1, CB6, CB82, CB308, CB343, CB941 and CB951. (Fig. 1)
c. Release 2 hooks, and remove the front panel unit. (Fig. 1)
Top cover
①
CB951
OPERATION (7) P.C.B.
RX-V681/RX-A760
W307
W301 CB308
Hook CB941 CB1
CB6
③ CB82
DIGITAL (1) P.C.B.
③
Front panel unit CB343
OPERATION (2) P.C.B.
Hook
③
Fig. 1
17
RX-V681/RX-A760
3. Removal of Network Module
a. The Wireless LAN Antenna Connector is removed by using MHF Connector Remover. (Fig. 2)
b. Remove a screw (4). (Fig. 2)
c. Remove the Network Module to upward.
④
Network module
Wireless LAN
Antenna Connector
Fig. 2
CAUTION !
• To remove the Wireless LAN Antenna Connector, use the special MHF Connector Remover. Hook the tip of this tool on
the cover of the Wireless LAN Antenna Connector and pull it straight in the direction of the engaging axis of the Wireless
LAN Antenna Connector. (Fig. 3)
Special removing tool
ZK708100: MHF Connector Remover
MHF Connector Remover
RX-V681/RX-A760
Wireless LAN Antenna Connector
Fig. 3
• The Wireless LAN Antenna Connector should only be plugged back to the Network Module after it has been installed
back onto the DIGITAL P.C.B.
• When plugging the Wireless LAN Antenna Connector back to the Network Module, make sure to hold it and insert it ver-
tically using the MHF Connector Remover. Make sure not to insert the Wireless LAN Antenna Connector at a sharp angle
as it may break.
• The Wireless LAN Antenna Connector can be inserted and removed up to 5 times only.
18
RX-V681/RX-A760
4. Removal of DIGITAL (1) P.C.B. 5. Removal of AMP Unit and Power Transformer
a. Remove screw (4) and 6 screws (5). (Fig. 5) a. Remove screw (7), 3 screws (8), 4 screws (9) and
b. Remove 3 screws. (6). (Fig. 4) 4 screws (j). (Fig. 4)
c. Remove CB76, CB78, CB79, CB80, CB942, CB944 and b. Remove 3 screws (k). (Fig. 5)
CB949. (Fig. 4) c. Remove the AMP unit together with the power trans-
d. Unlock and remove CB946 and CB948. (Fig. 4) former. (Fig. 4)
e. Remove the DIGITAL (1) P.C.B. which is connected
directly to the OPERATION (4) P.C.B. with board-
toboard connectors. (Fig. 4)
Remove CB946 and CB948
① Unlock the connector CB76 ⑥
Connected ② Remove the cable
① ①
CB942 DIGITAL (1) P.C.B.
②
CB945
CB944
Cable
Connect CB946 and CB948 CB78 Board-to-board connectors
① Lock the connector
Connected ② Insert the cable CB80 CB946
CB79 CB948
① ①
CB949
Cable
⑨ ⑧
Board-to-board connectors
⑦
⑩ Power transformer ⑩
⑨
CB381
RX-V681/RX-A760
⑥
AMP unit
OPERATION (4) P.C.B.
Fig. 4 ⑨
⑤ ④
⑪
Fig. 5
19
RX-V681/RX-A760
When checking the DIGITAL (1) P.C.B.:
• Put the rubber sheet and cloth over this unit, and place the DIGITAL (1) P.C.B. on them. (Fig. 6)
• Connect ST953 on DIGITAL (1) P.C.B. to the chassis with a ground lead. (Fig. 6)
• Reconnect all cables (connectors) that have been disconnected. Be sure to use the P.C.B. CHECKING JIG (Part No.
ZF454800) to connect between the following connectors.
CB945 on DIGITAL (1) P.C.B. – CB381 on OPERATION (4) P.C.B.
• When connecting the flexible flat cable, be careful with polarity.
DIGITAL (1) P.C.B.
ST953 CB948 P.C.B. CHECKING JIG
CB946
CB945 OPERATION (4) P.C.B.
Rubber sheet and cloth
CB381
CB154
CB155
Ground lead
Chassis
Fig. 6
RX-V681/RX-A760
20
RX-V681/RX-A760
When checking the MAIN (1) P.C.B.:
• Place the P.C.B.s (with rear panel) upright. (Fig. 7)
• Connect the heatsink and rear panel to the chassis with a ground lead or the like. (Fig. 7)
• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flexible flat cable, be careful with polarity.
Rear panel
Ground lead
Chassis
RX-V681/RX-A760
MAIN (1) P.C.B.
Ground lead
Rubber sheet and cloth
Heatsink
Fig. 7
21
RX-V681/RX-A760
RX-A760
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Top Cover
a. Remove 4 screws (1), 5 screws (2) and screw (3). (Fig. 1)
b. Lift the rear side of the top cover to remove it. (Fig. 1)
2. Removal of Front Panel Unit and Sub-Chassis Unit
a. Remove knob (INPUT) and knob (VOLUME). (Fig. 1)
b. Remove 6 screws (4) and then remove the front panel unit. (Fig. 1)
c. Remove 2 push rivets and then remove the side plate (L) and side plate (R). (Fig. 1)
d. Remove CB1, CB6, CB82, CB302, CB343, CB941 and CB951. (Fig. 1)
e. Remove 2 screws (5) and then remove the sub-chassis unit. (Fig. 1)
Top cover
②
①
Side plate (L) CB951
RX-V681/RX-A760
Push rivet
OPERATION (7) P.C.B.
CB941 CB1
CB302 CB6
④ CB82
⑤
DIGITAL (1) P.C.B.
Knob
(INPUT)
CB343
OPERATION (2) P.C.B.
④ ⑤ Push rivet
Knob Sub-chassis unit
(VOLUME)
Front panel unit Side plate (R)
Fig. 1
22
RX-V681/RX-A760
3. Removal of Network Module
a. The Wireless LAN Antenna Connector is removed by using MHF Connector Remover. (Fig. 2)
b. Remove screw (4). (Fig. 2)
c. Remove the Network Module to upward.
④
Network module
Wireless LAN
Antenna Connector
Fig. 2
CAUTION !
• To remove the Wireless LAN Antenna Connector, use the special MHF Connector Remover. Hook the tip of this tool on
the cover of the Wireless LAN Antenna Connector and pull it straight in the direction of the engaging axis of the Wireless
LAN Antenna Connector. (Fig. 3)
Special removing tool
ZK708100: MHF Connector Remover
MHF Connector Remover
RX-V681/RX-A760
Wireless LAN Antenna Connector
Fig. 3
• The Wireless LAN Antenna Connector should only be plugged back to the Network Module after it has been installed
back onto the DIGITAL P.C.B.
• When plugging the Wireless LAN Antenna Connector back to the Network Module, make sure to hold it and insert it ver-
tically using the MHF Connector Remover. Make sure not to insert the Wireless LAN Antenna Connector at a sharp angle
as it may break.
• The Wireless LAN Antenna Connector can be inserted and removed up to 5 times only.
23
RX-V681/RX-A760
4. Removal of DIGITAL (1) P.C.B. 5. Removal of AMP Unit and Power Transformer
a. Remove screw (6) and 6 screws (7). (Fig. 5) a. Remove screw (9), 2 screws (j), 3 screws (k) and
b. Remove 3 screws. (8). (Fig. 4) 4 screws (l). (Fig. 4)
c. Remove CB76, CB78, CB79, CB80, CB942, CB944 and b. Remove 3 screws (m). (Fig. 5)
CB949. (Fig. 4) c. Remove the AMP unit together with the power trans-
d. Unlock and remove CB946 and CB948. (Fig. 4) former. (Fig. 4)
e. Remove the DIGITAL (1) P.C.B. which is connected
directly to the OPERATION (4) P.C.B. with board-
toboard connectors. (Fig. 4)
Remove CB946 and CB948 CB76
① Unlock the connector
⑧
Connected ② Remove the cable DIGITAL (1) P.C.B.
① ① CB942
②
CB945
CB944
Cable
CB78
Connect CB946 and CB948
Board-to-board connectors
① Lock the connector CB80
Connected ② Insert the cable CB946
CB79 CB948
CB949
① ①
⑩
②
Cable Board-to-board connectors
⑨
OPERATION (4) P.C.B.
⑫ Power transformer ⑫ ⑪
CB381
⑧
RX-V681/RX-A760
AMP unit
⑪
Fig. 4
⑦ ⑥
Fig. 5
24
RX-V681/RX-A760
When checking the DIGITAL (1) P.C.B.:
• Put the rubber sheet and cloth over this unit, and place the DIGITAL (1) P.C.B. on them. (Fig. 6)
• Connect ST953 on DIGITAL (1) P.C.B. to the chassis with a ground lead. (Fig. 6)
• Reconnect all cables (connectors) that have been disconnected. Be sure to use the P.C.B. CHECKING JIG (Part No.
ZF454800) to connect between the following connectors.
CB945 on DIGITAL (1) P.C.B. – CB381 on OPERATION (4) P.C.B.
• When connecting the flexible flat cable, be careful with polarity.
DIGITAL (1) P.C.B.
ST953 CB948 P.C.B. CHECKING JIG
CB946
CB945 OPERATION (4) P.C.B.
Rubber sheet and cloth
CB381
CB154
CB155
Ground lead
Chassis
RX-V681/RX-A760
Fig. 6
25
RX-V681/RX-A760
When checking the MAIN (1) P.C.B.:
• Place the P.C.B.s (with rear panel) upright. (Fig. 7)
• Connect the heatsink and rear panel to the chassis with a ground lead or the like. (Fig. 7)
• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flexible flat cable, be careful with polarity.
Rear panel
Ground lead
Chassis
Rubber sheet and cloth
RX-V681/RX-A760
MAIN (1) P.C.B.
Ground lead
Heatsink
Fig. 7
26
RX-V681/RX-A760
■ UPDATING FIRMWARE
When the following parts are replaced, the firmware must be updated to the latest version.
DIGITAL P.C.B.
FPGA Flash ROM: IC86 on DIGITAL (1) P.C.B.
DSP1 Flash ROM: IC926 on DIGITAL (1) P.C.B.
DSP2 Flash ROM: IC930 on DIGITAL (1) P.C.B.
NETWORK MODULE
● Confirmation of firmware version and checksum
Before and after updating the firmware, check the firmware version and checksum by using the self-diagnostic func-
tion menu.
Start up the self-diagnostic function and select S4. ROM VERSION/CHECKSUM menu.
Using the sub-menu, have the firmware version and checksum displayed, and note them down.
(For details, refer to SELF-DIAGNOSTIC FUNCTION )
* When the firmware version is different from written one after updating, perform the updating procedure again from
the beginning again.
● Initializing the back-up IC (EEPROM: IC82 on DIGITAL P.C.B.)
After updating the firmware, the back-up IC MUST be initialized by the following procedure to store the setting infor-
mation (soundfield parameters, system memory and tuner presetting, etc.) properly.
Start up the self-diagnostic function and select S3. FACTORY PRESET menu.
(For details, refer to SELF-DIAGNOSTIC FUNCTION )
Select PRESET RSRV , press the MAIN ZONE z key to turn off the power once and turn on the power again. Then
the back-up IC is initialized.
● Required Tools
• USB storage device
• Latest firmware
Download the latest firmware from the specified download source to the PC.
And then, copy the firmware to the root folder of the USB storage device.
If the firmware is copied to a subfolder of the USB storage device, the update will not proceed.
RX-V681/RX-A760
27
RX-V681/RX-A760
● Operation Procedures
1. Insert the USB storage device to the USB jack. (Fig. 1)
2. While pressing the PURE DIRECT key, connect the power cable to the AC outlet. (Fig. 1)
"MAIN ZONE " key "PURE DIRECT" key
USB jack
Power cable
USB storage device
AC outlet
Fig. 1
3. The USB UPDATE mode is activated and USB UPDATE is displayed. Writing of the firmware starts automatically.
(Fig. 2)
Writing is started. Writing being executed.
USB UPDATE VERIFYING... Sx-X:XX%
S1: Network module section
S2: MAIN (IC90 on DIGITAL P.C.B.) section
S3: Flash ROM for DSP1 (IC926 on DIGITAL P.C.B.) section
S4: Flash ROM for DSP2 (IC930 on DIGITAL P.C.B.) section
S5: Flash ROM for DSP3 section (Not available)
S6: Flash ROM for MAIN (IC86 on DIGITAL P.C.B.) section
Fig. 2
RX-V681/RX-A760
* If ERROR! xxxxxx is displayed during writing of the firmware, refer to List of Error Messages to determine the
cause and perform the updating procedure again from the beginning.
4. When writing of the firmware is completed, UPDATE SUCCESS , PLEASE... and POWER OFF! are displayed
repeatedly. (Fig. 3)
Writing is completed.
UPDATE SUCCESS PLEASE... POWER Off!
Fig. 3
5. Press the MAIN ZONE z key to turn off the power. (Fig. 1)
6. Remove the USB storage device from the USB jack. (Fig. 1)
7. Start up the self-diagnostic function and check that the firmware version and checksum are the same as written
ones. (For details, refer to Confirmation of firmware version and checksum )
28
RX-V681/RX-A760
List of Error Messages
When writing fails, ERROR! XXXXXX is displayed on the front panel display.
XXXXXX is a HEX value, and each bit represents as follows:
Display
ERROR! xxxxxx
Error number
Display Binary Error Message
000001 0 bit 1: Main CPU preparation error / 0: No error
000002 1 bit 1: Main CPU erase error / 0: No error
000004 2 bit 1: Main CPU program error / 0: No error
000008 3 bit 1: Main CPU checksum error / 0: No error
000010 4 bit 1: DSP1 status port error / 0: No error
000020 5 bit 1: DSP1 checksum error / 0: No error
000040 6 bit 1: DSP1 data timeout / 0: No error
000080 7 bit 1: DSP1 checksum timeout / 0: No error
000100 8 bit 1: DSP2 status port error / 0: No error
000200 9 bit 1: DSP2 checksum error / 0: No error
000400 10 bit 1: DSP2 data timeout / 0: No error
000800 11 bit 1: DSP2 checksum timeout / 0: No error
001000 12 bit 1: DSP3 status port error / 0: No error (Not for service)
002000 13 bit 1: DSP3 checksum error / 0: No error (Not for service)
004000 14 bit 1: DSP3 data timeout / 0: No error (Not for service)
008000 15 bit 1: DSP3 checksum timeout / 0: No error (Not for service)
010000 16 bit 1: GUI Flash erase error / 0: No error
RX-V681/RX-A760
020000 17 bit 1: GUI Flash program error / 0: No error
040000 18 bit 1: GUI Flash checksum error / 0: No error
080000 19 bit 1: Model error / 0: No error
* The error number is displayed in the 6-digit hexadecimal notation.
* The error numbers are added when a multiple number of errors occur at the same time.
Example If errors by the error number 000002 and 000008 occur at the same time, the error number will be displayed as
00000A .
29
RX-V681/RX-A760
■ SELF-DIAGNOSTIC FUNCTION
This unit has self-diagnostic functions that are intended for inspection, measurement and location of faulty point.
Each item has a main menu, each of which has sub-menu items.
Listed in the table below are main menu items and sub-menu items.
Note: Some of the menu items listed below may not apply to the models covered in this service manual.
No. Main menu No. Sub-menu
A: Audio system
A1 DSP AUDIO 1 DSP THROUGH
2 INVALID ITEM (Not for service)
A2 DIRECT AUDIO 1 ANALOG DIRECT VH
2 ANALOG DIRECT VL
3 ANALOG DIRECT CENTER
4 ANALOG DIRECT SURROUND
5 ANALOG DIRECT SURROUND BACK
6 ANALOG DIRECT SUBWOOFER
7 INVALID ITEM (Not for service)
A3 HDMI AUDIO 1 HDMI AUTO
2 INVALID ITEM (Not for service)
3 ARC1
4 INVALID ITEM (Not for service)
5 INVALID ITEM (Not for service)
A4 AUDIO ROUTE CHECK 1 BI-AMP
2 Z-DSP THROUGH
3 D-PARTY MODE
4 FULL MUTE
5 INVALID ITEM (Not for service)
6 INVALID ITEM (Not for service)
7 INVALID ITEM (Not for service)
8 INVALID ITEM (Not for service)
9 HP MUTE
10 INVALID ITEM (Not for service)
11 INVALID ITEM (Not for service)
12 INVALID ITEM (Not for service)
13 DISTRO DIGITAL
14 DISTRO DAAD
RX-V681/RX-A760
A5 CONTROL OUT TEST 1 CONTROL OUT 1
(Not for service) 2 CONTROL OUT 2
A6 MIC CHECK 1 MIC ROUTE CHECK
A7 MANUAL TEST 1 TEST ALL
2 TEST FRONT L
3 TEST CENTER
4 TEST FRONT R
5 TEST SURROUND R
6 TEST SURROUND BACK R
7 TEST SURROUND BACK L
8 TEST SURROUND L
9 TEST FRONT PRESENCE L
10 TEST FRONT PRESENCE R
11 INVALID ITEM (Not for service)
12 INVALID ITEM (Not for service)
13 TEST LFE 1
14 INVALID ITEM (Not for service)
D: Display system
D1 FL CHECK 1 FL CHECK
2 ALL SEGMENT OFF
3 ALL SEGMENT ON
4 CHECK PATTERN 1
5 CHECK PATTERN 2
30
RX-V681/RX-A760
No. Main menu No. Sub-menu
Z: Zone system
Z1 ZONE TEST 1 AV1 (Not for service)
2 AV2 (Not for service)
3 AV3 (Not for service)
4 AV4 (Not for service)
5 AV5
6 AV6
7 AUDIO1
8 AUDIO2
9 V-AUX (Not for service)
10 PHONO (Not for service)
U: Universal system
U1 USB 1 USB FRONT 1 TRACK
2 USB FRONT 2 TRACK
3 USB_VBUS HIGH POWER
N: Network system
N1 NETWORK 1 IP ADDRESS CHECK
2 MAC ADDRESS CHECK
3 LINE NOISE 100 MDI (Not for service)
4 LINE NOISE 100 MDIX (Not for service)
5 LINE NOISE 10 MDI (Not for service)
6 LINE NOISE 10 MDIX (Not for service)
7 LINK CHECK
8 EXT TEST
9 MAC ADDRESS
11 PING
N2 WIFI 1 WIFI ON JIG01
(Not for service) 2 WIFI ON JIG02
3 WIFI ON JIG03
4 WIFI ON JIG04
5 WIFI ON JIG05
6 WIFI ON JIG06
7 WIFI ON JIG07
8 WIFI ON JIG08
RX-V681/RX-A760
9 WIFI ON JIG09
10 WIFI ON JIG10
11 WIFI OFF
12 WIFI MAC ADDRESS
13 WIFI RF TEST
N3 BLUETOOH 1 BT ADDRESS
N4 NET AUDIO CHECK 1 N APB0
2 N APB1
3 N APB2
4 N APB3
N5 NETWORK MODULE CONNECT CHECK 1 SPI CHECK
31
RX-V681/RX-A760
No. Main menu No. Sub-menu
C: Communication system
C1 DIGITAL PCB CHECK 1 ALL
2 BUS FLASH ROM
3 BUS FPGA
4 I2C
5 FPGA RAM
6 DIR BUS
7 DSP BUS
8 EEPROM
9 INVALID ITEM (Not for service)
10 INVALID ITEM (Not for service)
11 INVALID ITEM (Not for service)
C2 NETWORK MICROPROCESSOR CHECK 1 ALL
2 NET RAM
3 PHY TEST
4 APL ID CHECK
5 CLK GEN
6 PMIC
7 NET EEPROM
V: Video system
V1 ANALOG VIDEO CHECK 1 ANALOG BYPASS
2 INVALID ITEM (Not for service)
3 MUTE CHECK
4 VIDEO IN
V2 DIGITAL VIDEO CHECK 1 HDMI REPEAT
2 HDMI SCALING
3 DIGITAL CVBS
4 DIGITAL COMPONENT
5 DIGITAL COMPONENT SCALING
6 GUI-VIDEO OUT
7 4K DOWN SCALING
R: DAB
R1 INVALID ITEM 1 INVALID ITEM (Not for service)
2 INVALID ITEM (Not for service)
RX-V681/RX-A760
T: Troubleshooting Information
T1 TROUBLE SHOOTING INFORMATION 1 OPERATING TIME
2 POWER-RELAY ON
3 POWER AMP B
4 OUTPUT LEVEL
5 POWER OFF TIME-OUT
T2 USAGE ENVIRONMENT 1 MAIN ZONE HIGHEST VOLUME
2 ZONE 2 HIGHEST VOLUME
3 INVALID ITEM (Not for service)
4 THM HIGHEST TEMPERATURE
T3 EXTERNAL EVENT 1 HISTORY 1
2 HISTORY 2
3 HISTORY 3
4 HISTORY 4
5 HISTORY 5
6 HISTORY 6
7 HISTORY 7
8 HISTORY 8
32
RX-V681/RX-A760
No. Main menu No. Sub-menu
T4 INTERNAL INFOMATION 1 DSP INFORMATION
2 BU ERROR (Not for service)
3 NRC (Net Restart Counter) (Not for service)
4 INVALID ITEM (Not for service)
5 INVALID ITEM (Not for service)
P: Power and protection system
P1 SYSTEM MONITOR 1 DC
2 PS
3 TMP
4 OUTPUT LEVEL
5 LIMITER CONTROL
6 KEY
7 USB-VBUS (Not for service)
P2 PROTECTION HISTORY 1 HISTORY 1
2 HISTORY 2
3 HISTORY 3
4 HISTORY 4
S: System and version system
S1 FIRMWARE UPDATE 1 FIRMWARE UPDATE (Not for service)
S2 SET INFORMATION 1 MODEL
2 DESTINATION
S3 FACTORY PRESET 1 PRESET INHIBIT/RESERVE
S4 ROM VERSION/CHECKSUM 1 SYSTEM VERSION
2 FACTORY VERSION
3 MICROPROCESSOR VERSION
4 MICROPROCESSOR CHECKSUM
5 FLASH ROM VERSION
6 FLASH ROM CHECKSUM
7 NETWORK MICROPROCESSOR VERSION
8 NETWORK MICROPROCESSOR CHECKSUM
9 DSP1 VERSION
10 DSP1 CHECKSUM
11 DSP2 VERSION
12 DSP2 CHECKSUM
RX-V681/RX-A760
13 INVALID ITEM (Not for service)
14 INVALID ITEM (Not for service)
15 FPGA GUI VERSION
16 FPGA SD VERSION
17 FPGA HD VERSION
33
RX-V681/RX-A760
● Starting Self-Diagnostic Function
While pressing the TONE CONTROL and INFO keys, press the MAIN ZONE z key to turn on the power, and release
those 2 keys.
The self-diagnostic function mode is activated.
Keys of this unit
RX-V681
While pressing these keys, turn on the power.
RX-A760
While pressing these keys, turn on the power.
RX-V681/RX-A760
● Starting Self-Diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to troubleshooting, cancel the protection function by the procedure
below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess
current detect function will be disabled.)
While pressing the TONE CONTROL and INFO keys, press the MAIN ZONE z key to turn on the power and keep
pressing those 2 keys and MAIN ZONE z key for 3 seconds or longer.
The self-diagnostic function mode is activated with the protection functions disabled.
In this mode, the SLEEP segment of the FL display flashes to indicate that the mode is self-diagnostic function mode with
the protection functions disabled.
CAUTION!
Using this unit with the protection function disabled may cause further damage to this unit. Take special care for this point
when using this mode.
34
RX-V681/RX-A760
● Canceling Self-Diagnostic Function
1. Before canceling self-diagnostic function, execute setting for S3. FACTORY PRESET menu. (Memory initialization in-
hibited or Memory initialized).
* In order to keep the user memory preserved, be sure to select PRESET INHIBIT (Memory initialization inhibited).
2. Press the MAIN ZONE z key to turn off the power.
● Display provided when Self-Diagnostic Function started
The display is as described below depending on the situation when the power to this unit is turned off.
1. When the power is turned off by usual operation:
NO PROTECT is displayed. Then A1-1. DSP THROUGH is displayed in a few seconds.
Opening message Main menu display
After a few seconds
A1-1
NO PROTECT DSP THROUGH
2. When the protection function worked to turn off the power:
The information of protection function which worked at that time is displayed. Then A1-1. DSP THROUGH is dis-
played in a few seconds.
Note: At that time if you restart the self-diagnostic function after turning off the power once, NO PROTECT will be dis-
played. That is because that situation is equal to 1. When the power is turned off by usual operation: .
However history of the protection function is stored in memory as backup data. For details, refer to P2. PRO-
TECTION HISTORY menu.
2-1. When there is a history of protection function due to excess current.
I PROTECT
RX-V681/RX-A760
Cause: An excessive current flowed through the power amplifier.
Supplementary information: As over current of the power amplifier is detected, check condition of each power transistor.
Turning on the power without correcting the abnormality will cause the protection function to work immediately and the
power supply will instantly be shut off.
Notes:
• Applying the power to this unit without correcting the abnormality can be dangerous and cause additional
circuit damage. To avoid this, if I PROTECT protection function works 1 time, the power will not turn on even
when the MAIN ZONE z key is pressed. In order to turn on the power again, start up the self-diagnostic
function.
• The output transistors in each amplifier channel should be checked for damage before applying power to this
unit.
• Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel.
35
RX-V681/RX-A760
2-2. When the protection function worked due to abnormal DC output.
DC PRT:xxx
xxx: A/D conversion value of voltage at the moment when the protection function worked
(Reference voltage: 3.3 V=255)
Cause: DC output of the power amplifier is abnormal.
Supplementary information: The protection function worked due to a DC voltage appearing at the speaker terminal. A
cause could be a defect in the amplifier.
Turning on the power without correcting the abnormality will cause the protection function to work in 5 seconds and the
power supply will be shut off.
2-3. When the protection function worked due to abnormal voltage in the power supply section.
Cause: The voltage in the power supply section is abnormal.
Supplementary information: The protection function worked due to a defect or overload in the power supply.
PS PRT:xxx
xxx: A/D conversion value of voltage at the moment when the protection function worked
(Reference voltage: 3.3 V=255)
PS1/PS2/PS3
Turning on the power without correcting the abnormality will cause the protection function to work in 1 second and the
power supply will be shut off.
Notes:
• Applying the power to this unit without correcting the abnormality can be dangerous and cause additional
RX-V681/RX-A760
circuit damage. To avoid this, if PS and DC protection function works 3 times consecutively, the power will
not turn on even when the MAIN ZONE z key is pressed. In order to turn on the power again, start up the
selfdiagnostic function.
• The output transistors in each amplifier channel should be checked for damage before applying power to this
unit.
• Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel.
36
RX-V681/RX-A760
2-4. When the protection function worked due to excessive heatsink / bridge diode (D1040) temperature.
TMPxPRT:xxx
xxx: A/D conversion value of voltage at the moment when the protection function worked
(Reference voltage: 3.3 V=255)
TMP1/TMP3
Cause: The temperature of the heatsink / bridge diode (D1040) is excessive.
Supplementary information: The protection function worked due to the temperature limit being exceeded. Causes could
be poor ventilation or a defect related to the thermal sensor.
Turning on the power without correcting the abnormality will cause the protection function to work in 1 second and the
power supply will be shut off.
2-5. When the protection function worked due to excessive power supply voltage of USB.
USBPRT:xxx
Cause: The power supply voltage of USB is excessive.
If the power supply voltage of the USB device connected to the USB terminal is abnormal, USB Overloaded is displayed
and the protection function works and the power supply will be shut off.
2-6. When the protection function worked due to short between speaker terminals.
SPK PROTECT
Cause: Because of the speaker cables, etc., a short occurred between the speaker terminals, and excessive current
flowed through the amplifier.
RX-V681/RX-A760
Supplementary information: Use the same detection route as for the protection function due to excess current.
If excess current is detected after the speaker relay worked (ON), it is determined that there may be a short between the
speaker terminals.
Protection function works and the power supply will be shut off.
If the power supply is turned on again, CHECK SP WIRES will be displayed.
● History of protection function
When the protection function has worked, its history is stored in memory as backup data.
Even if no abnormality is noted while servicing the unit, an abnormality which has occurred previously can be
checked as long as the backup data has been stored.
For details, refer to P2. PROTECTION HISTORY menu.
37
RX-V681/RX-A760
● Operation procedure of Main menu and Sub-menu
Each item has a main menu, each of which has sub-menu items.
Main menu selection
Select the main menu using SCENE TV (forward) and SCENE BD/DVD (reverse) keys.
Sub-menu selection
Select the sub-menu using SCENE RADIO (forward) and SCENE NET (reverse) keys.
Keys of this unit
Main menu selection Sub-menu selection
Reverse Forward Reverse Forward
● Functions in Self-Diagnostic Function mode
In addition to the self-diagnostic function menu items, functions listed below are available.
• Power ON/OFF
• Master volume
• Muting
• Input selection
• Zone control
RX-V681/RX-A760
* Functions related to the tuner and the set menu are not available.
● Initial settings when Self-Diagnostic Function started
The following initial settings are used when self-diagnostic function is started.
• Master volume: -20 dB / Zone volume: +2.5dB
• Input: HDMI1 / Zone input: AUDIO1
• Main menu: A1-1. DSP THROUGH
• Speaker setting: LARGE, Bass out to SWFR (All channels)
• HDMI Control: Off
• Zone 2: On
* When self-diagnostic function is canceled, these settings are restored to those before starting self-diagnostic function.
38
RX-V681/RX-A760
● Details of Self-Diagnostic Function menu
A1. DSP AUDIO
This menu is used to check audio signal route via DSP.
A1-1. DSP THROUGH
The audio signal is output including the head margin via DSP.
* When input source is stereo, signal is assigned as below.
Front L: Front L, Center, Surround L, Surround Back L
Front R: Front R, Surround R, Surround Back R
Front L +10 dB: Subwoofer
A1-1
DSP THROUGH
A1-2. INVALID ITEM
Not for service.
A1-2
INVALID ITEM
A2. DIRECT AUDIO
This menu is used to check audio signal route of PURE DIRECT mode.
A2-1. DIRECT VH
The analog input audio signal is output to FRONT L/R in PURE DIRECT mode.
VH: Voltage High, RY101 on MAIN (1) P.C.B.: Off
* RY101: Power amp power voltage H/L switching relay
A2-1
RX-V681/RX-A760
DIRECT :VH
39
RX-V681/RX-A760
A2-2. DIRECT VL
The analog input audio signal is output to FRONT L/R in PURE DIRECT mode.
VL: Voltage Low, RY101 on MAIN (1) P.C.B.: On
* RY101: Power amp power voltage H/L switching relay
A2-2
DIRECT :VL
MAIN (1) P.C.B. RY101 peripheral schematic diagram
5 k-ohms
10 W H S 1 0 1
ZC32430
@value
TH101 THM3_PRT
NCP18XH103F03RB
Screw:WE77420 RY101
VH
8200/71
C1084
RS603M-B-C-J80
VL
0.1/100
DH5D2-O
C1078
R1225
CB101
68K
G101 1 E
2 8
3 7 D1040 E
4 AC_BL
5 6
0.1/100
C1079
1P 220MM T-T
AC_BL
RY101
W102A
AC_BH
BLK
8200/71
VH
C1085
AC_BH
D H 5 D 2 -VL
O VHI
R1227
R1228
R1229
15K
91K
91K
PS1_PRT
5 k-ohms
000P(B)
5 C1124
R1255
R1256
J6
10 W
62K
62K
A2-3. DIRECT CENTER
The analog input audio signal is output to CENTER in PURE DIRECT mode.
A2-3
DIRECT C
A2-4. DIRECT SURROUND
The analog input audio signal is output to SURROUND L/R in PURE DIRECT mode.
RX-V681/RX-A760
A2-4
DIRECT SUR
A2-5. DIRECT SURROUND BACK
The analog input audio signal is output to SURROUND BACK L/R in PURE DIRECT mode.
A2-5
DIRECT SB
A2-6. DIRECT SUBWOOFER
The analog input audio signal is output to SUBWOOFER in PURE DIRECT mode.
A2-6
DIRECT SW
A2-7. INVALID ITEM
Not for service.
A2-7
INVALID ITEM
40
RX-V681/RX-A760
A3. HDMI AUDIO
This menu is used to check the route of audio signal input to HDMI IN/OUT jack.
* Before check using A3-3. ARC 1 menu, be sure to connect a TV monitor equipped with Audio Return Channel
function to this unit in advance.
A3-1 A3-1. HDMI AUTO
HDMI AUTO The audio signal input to selected HDMI IN jack is output.
A3-2 A3-2. INVALID ITEM
INVALID ITEM Not for service.
A3-3 A3-3. ARC 1 (Audio Return Channel function)
ARC 1 The audio signal input to HDMI OUT jack is output.
A3-4 A3-4. INVALID ITEM
INVALID ITEM Not for service.
A3-5 A3-5. INVALID ITEM
INVALID ITEM Not for service.
RX-V681/RX-A760
41
RX-V681/RX-A760
A4. AUDIO ROUTE CHECK
This menu is used to check the speaker output.
A4-1 A4-1. BI-AMP
BI-AMP The FRONT L/R signal is distributed to SURROUND BACK L/R terminals.
A4-2 A4-2. Z-DSP THOUGH
Z-DSP THROUGH The audio signal is output to FRONT L/R, CENTER, SURROUND L/R and ZONE2 L/R terminals.
ZONE volume: -3.5 dB
A4-3 A4-3. D-PARTY MODE
D-PARTY MODE The FRONT L/R signal is distributed to ZONE2 L/R terminals.
ZONE2 volume: -3.5 dB
A4-4 A4-4. FULL MUTE
FULL MUTE The audio signals are muted at all channels.
A4-5 A4-5. INVALID ITEM
INVALID ITEM Not for service.
A4-6 A4-6. INVALID ITEM
INVALID ITEM Not for service.
A4-7. INVALID ITEM
A4-7
INVALID ITEM Not for service.
A4-8. INVALID ITEM
A4-8
INVALID ITEM Not for service.
A4-9. HP MUTE
RX-V681/RX-A760
A4-9
HP MUTE The audio signals to headphone are muted at all channels.
A4-10. INVALID ITEM
A4-10
INVALID ITEM Not for service.
A4-11 A4-11. INVALID ITEM
INVALID ITEM Not for service.
A4-12 A4-12. INVALID ITEM
INVALID ITEM Not for service.
A4-13 A4-13. DISTRO DIGITAL
Z2 ADT D & 23 The following audio routes are checked.
DIR (IC942) → Last-DSP Down mix (IC931) → Selector (IC946) → CB952 →
NET (loop back) → Buffer (IC952) → Selector (IC945) → NET/PARTY DAC (IC481) →
A4-14 ZONE2/PRESENCE SPEAKER OUT
M2 ADT DAAD
42
RX-V681/RX-A760
A4-13
Z2 ADT D & 23
A4-14 A4-14. DISTRO DAAD
M2 ADT DAAD The following audio routes are checked.
DIR (IC942) → Last-DSP Down mix (IC931) → SB DAC (IC485) → VOLUME IC (IC157) →
ADC (DIR) (IC942) → SELECTOR (IC946) → CB952 → NET (loop back) → Buffer (IC952) →
Selector (IC945) → NET/PARTY DAC (IC481) → ZONE2/PRESENCE SPEAKER OUT
A5. CONTROL OUT TEST
Not for service.
A5-1 A5-2
CONTOL OUT 1 CONTOL OUT 2
A6. MIC CHECK
A6-1. MIC ROUTE CHECK
The audio signal input to the YPAO MIC jack is output to FRONT L and FRONT R channels via A/D-D/A.
A6-1
MIC ROUTE
A7. MANUAL TEST
The test noise generated by built-in noise generator in DSP is output to the channels specified by the sub-menu.
Test noise Test noise
30 Hz to 80 Hz 50 Hz
for SUBWOOFER
pink noise sine wave
500 Hz to 2 kHz 1 kHz
for other than SUBWOOFER
RX-V681/RX-A760
pink noise sine wave
A7-1 A7-1. TEST ALL
TEST ALL The test noise is output to FRONT L/R, CENTER, SURROUND L/R,
SURROUND BACK L/R and LFE 1 channels.
A7-2 A7-2. TEST FRONT L
TEST FRNT L The test tone is output to FRONT L channel.
A7-3 A7-3. TEST CENTER
TEST CENTER The test tone is output to CENTER channel.
A7-4 A7-4. TEST FRONT R
TEST FRNT R The test tone is output to FRONT R channel.
43
RX-V681/RX-A760
A7-5 A7-5. TEST SURROUND R
TEST SURR R The test tone is output to SURROUND R channel.
A7-6 A7-6. TEST SURROUND BACK R
TEST SB R The test tone is output to SURROUND BACK R channel.
A7-7 A7-7. TEST SURROUND BACK L
TEST SB L The test tone is output to SURROUND BACK L channel.
A7-8 A7-8. TEST SURROUND L
TEST SURR L The test tone is output to SURROUND L channel.
A7-9 A7-9. TEST FRONT PRESENCE L
TEST FP L The test tone is output to FRONT PRESENCE L channel.
A7-10 A7-10. TEST FRONT PRESENCE R
TEST FP R The test tone is output to FRONT PRESENCE R channel.
A7-11 A7-11. INVALID ITEM
INVALID ITEM Not for service.
A7-12 A7-12. INVALID ITEM
INVALID ITEM Not for service.
RX-V681/RX-A760
A7-13 A7-13. TEST LFE 1 (SUBWOOFER)
TEST LFE 1 The test tone is output to LFE 1 channel.
A7-14 A7-14. INVALID ITEM
INVALID ITEM Not for service.
44
RX-V681/RX-A760
D1. FL CHECK
This menu is used to check operation of the FL display.
FL display
D1-1. INITIAL DISPLAY
FPL FPR
SL SW SR
SBL SB SBR
D1-2. ALL SEGMENT OFF
FPL FPR
SL SW SR
SBL SB SBR
D1-3. ALL SEGMENT ON
FPL FPR
SL SW SR
SBL SB SBR
* After check, change to next menu at once.
If you turn ON all segments for a long period, it may cause trouble.
D1-4. CHECK PATTERN 1
FPL FPR
SL SW SR
SBL SB SBR
Example
RX-V681/RX-A760
Lighting on segments in lattice.
D1-5. CHECK PATTERN 2
Short Normal
FPL FPR
SL SW SR
SBL SB SBR
Segment conditions of the FL tube is checked by turning ON and OFF all segments.
Next, a short between segments next to each other is checked by turning ON and OFF all segments alternately (in lat-
tice).
(In the above example, the segments in the second row from the top are shorted.)
45
RX-V681/RX-A760
Z1. ZONE TEST
This menu is used to check the ZONE 2 ZONE OUT (PRE OUT).
* The audio signal is not output to ZONE 2 SPEAKER OUT.
Z1-1 Z1-1. AV1
AV1 Not for service.
Z1-2 Z1-2. AV2
AV2 Not for service.
Z1-3 Z1-3. AV3
AV3 Not for service.
Z1-4 Z1-4. AV4
AV4 Not for service.
Z1-5 Z1-5. AV5
AV5 The audio signal input to AV5 jack is output to ZONE 2 OUT jack.
Z1-6 Z1-6. AV6
AV6 The audio signal input to AV6 jack is output to ZONE 2 OUT jack.
Z1-7 Z1-7. AUDIO1
AUDIO1 The audio signal input to AUDIO1 jack is output to ZONE 2 OUT jack.
RX-V681/RX-A760
Z1-8 Z1-8. AUDIO2
AUDIO2 The audio signal input to AUDIO2 jack is output to ZONE 2 OUT jack.
Z1-9 Z1-9. V-AUX
V-AUX Not for service.
Z1-10 Z1-10. PHONO
PHONO Not for service.
46
RX-V681/RX-A760
U1. USB
This menu is used to check the audio signal route from USB storage device.
U1-1. USB FRONT 1 TRACK
The 1st music file stored in the USB storage device connected to the USB jack is reproduced.
* Copy 2 or more music files from PC to the root folder of the USB storage device in advance.
U1-1
USB_F 1 TRACK
U1-2. USB FRONT 2 TRACK
The 2nd music file stored in the USB storage device connected to the USB jack is reproduced.
U1-2
USB_F 2 TRACK
U1-3. USB_VBUS HIGH POWER
The output current (USB_VBUS) of USB jack is output at up to 1.0A/5V.
U1-3
USB_VBUS_HPWR
N1. NETWORK
This menu is used to check functions related to NETWORK.
Connect between LAN port of broadband router and NETWORK jack of this unit with a network cable.
* When the network condition varies while sub-menu is displayed (e.g., the network is deactivated once), the correct
result will not be displayed.
In that case, once turn off the power to this unit, then start up the self-diagnostic function again and select this menu.
N1-1. IP ADDRESS CHECK
This menu is used to check that IP address can be obtained.
N1-1
IP AD CHK:OK
OK: Connected (IP address obtained)
NG: No traffic / Disconnected
N1-2. MAC ADDRESS CHECK
RX-V681/RX-A760
This menu is used to check that MAC address is written.
N1-2
MAC AD CHK:OK
OK: Normal
NG: Unwritten
N1-3. LINE NOISE 100 MDI
Not for service.
N1-3
LN MDI 100
N1-4. LINE NOISE 100 MDIX
Not for service.
N1-4
LN MDIX 100
47
RX-V681/RX-A760
N1-5. LINE NOISE 10 MDI
Not for service.
N1-5
LN MDI 10
N1-6. LINE NOISE 10 MDIX
Not for service.
N1-6
LN MDIX 10
N1-7. LINK CHECK
This menu is used to check LINK.
N1-7
LINK CHK:OK
OK: Normal
NG: Abnormal
--: Checking
N1-8. EXT TEST
Transmission/reception of the NETWORK jack is checked.
With the power turned off, short the pins of the NETWORK jack as shown in the figure below.
Start up the self-diagnostic function and select this menu.
Transmission/reception test is executed and its result is displayed.
Notes: Be sure to return the shorted pins to their original condition after executing this test.
N1-8
8 7 6 5 4 3 2 1 EXT TEST:OK
OK: Normal
NG: Abnormal
--: Checking
RX-V681/RX-A760
NETWORK jack
N1-9. MAC ADDRESS
Written MAC address is displayed.
N1-9
00A0DExxxxxx
N1-11. PING
Transmit the PING command.
N1-11
PING:OK
OK: Normal
NG: Abnormal
--: Checking
48
RX-V681/RX-A760
N2. WIFI
Not for service.
N2-1 N2-11
WIFI ON JIG01 WIFI OFF
N2-12
209148xxxxxx
N2-13
WIFI RF TEST
N3. BLUETOOTH
This menu is used to display BLUETOOTH information and check playback.
N3-1. BLUETOOTH ADDRESS
BLUETOOTH address is displayed.
N3-1
2091488xxxxx
N4. NET AUDIO CHECK
The sine wave generated by Network Module is output to selected signal line in sub-menu.
DSP1 (IC931) receives the output signal, and then the analysis result is displayed.
N4-1. N APB0 (Network Module Audio Playback SD0)
NCPU_SD0 signal route is checked.
N4-1
N APB0:OK O--- O: Signal exists
-: No signal
OK: Normal
NG: Abnormal
--: Checking
N4-2. N APB1 (Network Module Audio Playback SD1)
RX-V681/RX-A760
NCPU_SD1 signal route is checked.
N4-2
N APB1:OK -O--
N4-3. N APB2 (Network Module Audio Playback SD2)
NCPU_SD2 signal route is checked.
N4-3
N APB2:OK --O-
N4-4. N APB3 (Network Module Audio Playback SD3)
NCPU_SD3 signal route is checked.
N4-4
N APB3:OK ---O
49
RX-V681/RX-A760
N5. NETWORK MODULE CONNECT CHECK
This menu is used to check the connection between Network Microprocessor (N) and Main Microprocessor (M).
N5-1. SPI
SPI (Serial Peripheral Interface) connection between Network Microprocessor (N) and Main Microprocessor (M)
is checked.
N5-1
SPI:OK
OK: No error detected
NG M -> N: An error is detected on M to N route
NG M <- N: An error is detected on N to M route
NG M <-> N: An error is detected on Clock and/or
M to N and/or N to M route(s).
C1. DIGITAL P.C.B. CHECK
This menu is used to check the communication and bus line connection between devices on DIGITAL P.C.B.
C1-1. ALL
The total detection result of sub-menus from C1-2 to C1-8 is displayed.
C1-1
ALL:OK
OK: No error detected
NG: An error is detected
C1-2. BUS FLASH ROM
FLASH ROM (IC86) s reading/writing are checked.
C1-2
BUS_FROM:OK
OK: No error detected
NG: An error is detected
C1-3. BUS FPGA
Communication and bus line connection between microprocessor (IC90) and FPGA (IC50) are checked.
RX-V681/RX-A760
C1-3
BUS_FPGA:OK
OK: No error detected
NG: An error is detected
C1-4. I2C
The I2C (Inter integrated circuit) bus line connection is checked.
C1-4
I2C:0-0 0 00 0 : No error detected
1 : An error is detected
Error detection of Video selector (IC341 on OPERATION P.C.B.)
Error detection of Video decoder (IC21)
Error detection of Front HDMI equalizer (IC423)
Error detection of HDMI TRX (IC7)
Error detection of HDMI switcher 1 (IC2)
50
RX-V681/RX-A760
C1-5. FPGA RAM
SDRAM (IC53) s reading/writing are checked
C1-5
FPGA_RAM:OK
OK: No error detected
NG: An error is detected
C1-6. DIR BUS
Communication and bus line connection between microprocessor (IC90) and DIR (IC942) are checked.
C1-6
DIR B:OK
OK: No error detected
NG: An error is detected
C1-7. DSP BUS
Communication and bus line connection between microprocessor (IC90) and DSP1 (IC931)/DSP2 (IC932) are
checked.
C1-7 OK: No error detected
DSP B:OK,OK NG: An error is detected
DSP1 DSP2
C1-8. EEPROM
EEPROM (IC82) s reading is checked.
C1-8
EEPROM:OK
OK: No error detected
NG: An error is detected
C1-9. INVALID ITEM
RX-V681/RX-A760
Not for service.
C1-9
INVALID ITEM
C1-10.INVALID ITEM
Not for service.
C1-10
INVALID ITEM
C1-11. INVALID ITEM
Not for service.
C1-11
INVALID ITEM
51
RX-V681/RX-A760
C2. NETWORK MICROPROCESSOR CHECK
This menu is used to check the communication and bus line connection between devices and Network Microproces-
sor on Network Module.
C2-1. ALL
The synthetic judgment result of sub-menu C2-2 to C2-8 is displayed.
C2-1
ALL:OK
OK: No error detected
NG: An error is detected
--: Checking
C2-2. NET RAM
Communication and bus line connection of RAM IC on Network Module is checked.
C2-2
NET RAM:OK
OK: No error detected
NG: An error is detected
--: Checking
C2-3. PHY (Ethernet PHYceiver) TEST
Communication and bus line connection of PHY on Network Module is checked.
C2-3
PHY TEST:OK
OK: No error detected
NG: An error is detected
--: Checking
C2-4. APL (Apple) ID CHECK
Apple authentication IC (IC953) on DIGITAL P.C.B. device ID is checked.
RX-V681/RX-A760
C2-4
APL ID:OK
OK: No error detected
NG: An error is detected
--: Checking
C2-5. CLK GEN (Clock Generator)
Access of Clock generator on Network Module connected to Network Microprocessor is checked.
C2-5
CLK GEN:OK
OK: No error detected
NG: An error is detected
--: Checking
52
RX-V681/RX-A760
C2-6. PMIC
Access of power supply (PMIC) on Network Module connected to Network Microprocessor is checked.
C2-6
PMIC:OK
OK: No error detected
NG: An error is detected
--: Checking
C2-7. NET EEPROM
EEPROM on Network Module is checked and the result is displayed.
C2-7
NET EPROM:OK
OK: No error detected
NG: An error is detected
--: Checking
RX-V681/RX-A760
53
RX-V681/RX-A760
V1. ANALOG VIDEO CHECK
This menu is used to check the analog video signal route.
V1-1. ANALOG BYPASS
The video signal is converted and output as shown below.
V1-1
ANALOG BYPASS
ANALOG BYPASS
HDMI IN HDMI OUT
DIGITAL DIGITAL DIGITAL
IC7 IC50 IC7
RxTx FPGA RxTx
Component In DIGITAL Component Out
IC21
VIDEO
Decoder
OPERATION
IC341
Video
Selector
Composite In Composite Out
V1-2. INVALID ITEM
Not for service.
V1-2
INVALID ITEM
RX-V681/RX-A760
54
RX-V681/RX-A760
V1-3. MUTE CHECK
The video signal is converted and output as shown below.
V1-3
MUTE CHECK
MUTE CHECK
HDMI IN HDMI OUT
DIGITAL DIGITAL DIGITAL
IC7 IC50 IC7
RxTx FPGA RxTx
Component In DIGITAL Component Out
IC21
MUTE
VIDEO VDEC_N_RST
Decoder
OPERATION
IC341
Video
Selector
Composite In Composite Out
V1-4. VIDEO INFORMATION
The information of input analog video signals is displayed.
V1-4
VID IN:---
RX-V681/RX-A760
55
RX-V681/RX-A760
V2. DIGITAL VIDEO CHECK
This menu is used to check the digital video signal route.
V2-1. HDMI REPEAT
The video/audio signals input to HDMI IN jack are output to HDMI OUT jack.
V2-1
HDMI REPEAT --
The Deep Color video signals is input, “30” bit or “36” bit
is displayed.
HDMI output
HDMI
TV
BD/DVD player HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Sii9587CNUC-3
IC2 IC7
HDMI SWITCHER HDMI
Sii9589-3CTUC RECEIVER/TRANSMITTER
MN864787
IC21 IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
RX-V681/RX-A760
56
RX-V681/RX-A760
V2-2. HDMI SCALING
The video / audio signals input to HDMI IN jack are output to HDMI OUT jack via FPGA Scaling.
HDMI video output up-scaling: INPUT 1080i@60Hz, OUTPUT 1080p@60Hz
* If the input video signal is other than 1080i@60Hz, upscaling cannot be done.
V2-2
HDMI SC
HDMI output
HDMI
TV
BD/DVD player HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Sii9587CNUC-3
IC2 IC7
HDMI SWITCHER HDMI
Sii9589-3CTUC RECEIVER/TRANSMITTER
MN864787
16bit 21bit
IC21 IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
V2-3. DIGITAL CVBS
The video (CVBS) signal is converted and output as shown below.
RX-V681/RX-A760
V2-3 TV
DIGITAL CVBS HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Sii9587CNUC-3
IC2 IC7
HDMI SWITCHER HDMI
Video output
Sii9589-3CTUC RECEIVER/TRANSMITTER
VIDEO MN864787
21bit
BD/DVD player
IC21 8bit IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
57
RX-V681/RX-A760
V2-4. DIGITAL COMPONENT
The component video (Y, Cb, Cr) signal is converted and output as shown below.
V2-4
DIGITAL Cmp
TV
HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Component video output Sii9587CNUC-3
COMPONENT IC2 IC7
HDMI SWITCHER HDMI
Sii9589-3CTUC RECEIVER/TRANSMITTER
MN864787
21bit
BD/DVD player
IC21 8bit IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
V2-5. DIGITAL COMPONENT SCALING
The component video (Y, Cb, Cr) signal is converted and output as shown below.
HDMI video output up-scaling: INPUT 480i/576i, OUTPUT 1080p
V2-5 TV
RX-V681/RX-A760
DIGITAL Cmp SC HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Component video output Sii9587CNUC-3
COMPONENT IC2 IC7
HDMI SWITCHER HDMI
Sii9589-3CTUC RECEIVER/TRANSMITTER
MN864787
21bit
BD/DVD player
IC21 8bit IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
58
RX-V681/RX-A760
V2-6. GUI (Graphical User Interface)-VIDEO OUT
The GUI is output from FPGA (IC50 on DIGITAL P.C.B.).
V2-6
GUI-VIDEO OUT TV
HDMI
CB421
HDMI IN
Front-HDMI-Board
Front CB4 CB5 CB7 CB8 CB9
HDMI
HDMI HDMI HDMI HDMI HDMI
OUT
IN5 IN4 IN3 IN2 IN1
IC423
HDMI EQUALIZER
Sii9587CNUC-3
IC2 IC7
HDMI SWITCHER HDMI
Sii9589-3CTUC RECEIVER/TRANSMITTER
MN864787
21bit
IC21 IC50
Y,CbCr
VIDEO DECODER FPGA
CVBS ADV7180BSTZ EP4CE15F17C6N
IC53
256Mbit
SDRAM
V2-7. 4K DOWN SCALING
Not for service.
V2-7
4k down sc
RX-V681/RX-A760
59
RX-V681/RX-A760
R1. INVALID ITEM
Not for service.
R1-1 R1-2
INVALID ITEM INVALID ITEM
T1. TROUBLE SHOOTING INFORMATION
This menu is used to display the operating time and operation frequency of this unit.
* The operating time and operation frequency during the self-diagnostic function mode will not be stored.
T1-1. OPERATING TIME
The operating time of this unit is displayed.
The operating time will be erased by pressing the STRAIGHT key.
T1-1
0000D 00H 00M
Minute (0M to 59M)
Hour (0H to 23H)
Day (0D to 9999D)
T1-2. POWER-RELAY ON
The operation frequency of the power relay (RY371) is displayed in hexadecimal notation.
The operation frequency will be erased by pressing the STRAIGHT key.
T1-2
PR-ON Num:0000
Operation frequency / 0 to FFFF (up to 65,535 times)
T1-3. POWER AMP B
The operation frequency of the POWER AMP B relay (RY101) is displayed in hexadecimal notation.
The operation frequency will be erased by pressing the STRAIGHT key.
T1-3
RX-V681/RX-A760
P-AMP B Num:00
Operation frequency / 0 to FF (up to 255 times)
T1-4. OUTPUT LEVEL
The maximum value of the speaker output level is displayed in hexadecimal notation.
The maximum value will be erased by pressing the STRAIGHT key.
T1-4
OUTLVL MAX:00
Maximum value / 0 to FF
T1-5. POWER OFF TIME-OUT
The number of time-out times of each module when the power is turned off will be displayed in hexadecimal no-
tation.
All the number of time-out times will be erased by pressing the STRAIGHT key.
T1-5
TO: 0/ 0/ 0/ 0 0 to FF (up to 255 times)
VIDEO
NET
HDMI
Power relay
60
RX-V681/RX-A760
T2. USAGE ENVIRONMENT
This menu is used to display the maximum level of the MAIN ZONE / ZONE 2 volume and the maximum value of the
detected heatsink temperature when this unit is operated.
* The maximum level of the MAIN ZONE / ZONE 2 volume and the maximum value of the detected heatsink tempera-
ture during the self-diagnostic function mode will not be stored.
T2-1. MAIN ZONE HIGHEST VOLUME
The maximum value of the MAIN ZONE volume level maintained for longer than 1 minute is displayed.
The maximum value of the MAIN ZONE volume level will be erased by pressing the STRAIGHT key.
T2-1
MAIN VOL:-----
Maximum value / -80.0 to +16.5 dB
T2-2. ZONE 2 HIGHEST VOLUME
The maximum value of the ZONE 2 volume level maintained for longer than 1 minute is displayed.
The maximum value of the ZONE 2 volume level will be erased by pressing the STRAIGHT key.
T2-2
Z2 VOL: -----
Maximum value / -80.0 to +16.5 dB
T2-3. INVALID ITEM
Not for service.
T2-3
INVALID ITEM
T2-4. THM HIGHEST TEMPERATURE
The maximum value of each detected heatsink / bridge diode temperature is stored and displayed.
The stored maximum values of each temperature will be erased by pressing the STRAIGHT key.
RX-V681/RX-A760
THM1: Heatsink temperature
THM2: Not for service
THM3: Bridge diode temperature
T2-4
THM4: Not for service TH:A8/--/E9/--
Normal value
THM1: 51 to FF
THM3: 51 to FF
00 (High) < FF: (Low)
61
RX-V681/RX-A760
T3. EXTERNAL EVENT
This menu is used to display the history of key operation.
* No matter how many times the same key is pressed, it will be stored only once as its history.
* The key operation during the self-diagnostic function mode will not be stored.
All history of key operation will be erased by pressing the STRAIGHT key.
* Numeric values in the figure are given as reference only.
T3-1. HISTORY 1 T3-2. HISTORY 2 T3-3. HISTORY 3 T3-4. HISTORY 4
T3-1 T3-2 T3-3 T3-4
7E -2A 7A -AA 7A -9C 7A -AA
T3-5. HISTORY 5 T3-6. HISTORY 6 T3-7. HISTORY 7 T3-8. HISTORY 8
T3-5 T3-6 T3-7 T3-8
7A -DE 7A -9E 7A -9C 7A -AA
RX-V681/RX-A760
62
RX-V681/RX-A760
List of key operation
Display
Key name
Key number AD value 1 AD value 2 AD value 3
0205 B2 – C5 FF FF MAIN ZONE z
0208 60 – 76 FF FF ZONE 2
0300 37 – 4B FF FF SCENE 1 (BD/DVD)
0301 21 – 36 FF FF SCENE 2 (TV)
0302 0C – 20 FF FF SCENE 3 (NET)
0303 00 – 0B FF FF SCENE 4 (RADIO)
0420 77 – 8E FF FF INPUT (RX-V681)
0421 8F – A2 FF FF INPUT (RX-V681)
0500 FF CE – E1 FF PROGRAM
0501 FF E2 – F5 FF PROGRAM
0530 FF BA – CD FF STRAIGHT
0533 FF 00 – 0B FF PURE DIRECT
0800 C6 – E5 FF FF TONE CONTROL
0A00 FF A6 – B9 FF INFO
0C00 4C – 5F FF FF ZONE CONTROL
2C00 FF 0C – 20 FF TUNING
2C01 FF 21 – 36 FF TUNING
2C02 FF 37 – 4D FF AM
2C03 FF 4E – 62 FF FM
2C04 FF 63 – 78 FF PRESET
2C05 FF 79 – 8F FF PRESET
2C06 FF 90 – A5 FF MEMORY
RX-V681/RX-A760
0101 VOLUME knob (–)
0102 VOLUME knob (+)
0103 INPUT knob (–) (RX-A760)
0104 INPUT knob (+) (RX-A760)
7A xxxx * For the details of the remote control key display, refer
7E xxxx to REMOTE CONTROL .
63
RX-V681/RX-A760
T4. INTERNAL INFORMATION
T4-1. DSP INFORMATION
This menu is used to display the DSP information stored in memory as backup data before rebooting.
The DSP information will be erased by pressing the STRAIGHT key.
T4-1
DSP:--/--/-- --: Not stored
Decode format
Channels
Sampling frequency
Sampling frequency Channels Decode format
Display Sampling frequency [kHz] Display Channels Display Decode format
0 32 0 Dual Mono 0 Analog
1 44.1 1 1/0 1 PCM
2 48 2 2/0 2 Dolby Digital
3 64 3 3/0 3 Dolby Digital EX
4 88.2 4 2/1 4 DTS
5 96 5 3/1 5 DTS 9624
6 128 6 2/2 6 DTS ES Matrix
7 176.4 7 3/2 7 DTS ES Discrete
8 192 8 2/3 8 DTS 96 ES Matrix
10 8 9 3/3 9 AAC
11 11 10 2/4 10 DSD
12 12 11 3/4 11 Multi PCM
13 16 12 HD Multi channel 12 Dolby Digital Plus
14 22.05 13 Unknown 13 Dolby Digital Plus EX
15 24 14 Dolby True HD
16 Unknown 15 Dolby True HD EX
16 DTS Express
17 DTS HD
18 DTS HD Master Audio
19 Digital
20 MP3
21 WMA
22 FLAC
25 Unknown
RX-V681/RX-A760
T4-2. BU ERROR
Not for service.
T4-2
BU:08-1A-00 00
T4-3. NRC (Net Restart Counter)
Not for service.
T4-3
NRC: 0
T4-4. INVALID ITEM
Not for service.
T4-4
INVALID ITEM
T4-5. INVALID ITEM
Not for service.
T4-5
INVALID ITEM
64
RX-V681/RX-A760
P1. SYSTEM MONITOR
This menu is used to display the A/D conversion value of the microprocessor which detects panel keys and protection
functions by using the sub-menu.
When P1-6. KEY sub-menu is selected, keys become inoperable due to detection of the values of all keys.
However, it is possible to advance to the next menu by pressing the SCENE RADIO (forward) key or SCENE NET
(reverse) key on the remote control.
* Numeric values in the figure are given as reference only.
P1-1. DC
Power amplifier DC (DC voltage) output is detected.
The voltage at 5 pin (DC_PRT) of IC78 is displayed.
Normal value: 32 to 74
(Reference voltage: 3.3 V=255)
* If DC becomes out of the normal value range, the protection function works to turn off the power.
P1-1
DC: 50
P1-2. PS
Power supply voltage (PS) protection detection.
The voltage at 1 pin (PS1_PRT)/2 pin (PS2_PRT)/15 pin (PS3_PRT) of IC76 are displayed.
Voltage detects
PS1: AC12, AC-BL
PS2: ± 7V, +12V, +3.3T, +VP (PRV2_PROTECTION), -3.3V
PS3: +5.6V
Normal value
PS1: 51 to 179
PS2: 136 to 183
PS3: 126 to 177
(Reference voltage: 3.3 V=255)
* If PS1, PS2 or PS3 becomes out of the normal value range, the protection function works to turn off the pow-
RX-V681/RX-A760
er.
P1-2
PS:117/160/154
PS3
PS2
PS1
65
RX-V681/RX-A760
P1-3. TMP
TMP1: Temperature of the heatsink (TMP) is detected.
The voltage at 1 pin (THM1) of IC78 is displayed.
TMP3: Temperature of bridge duide (TMP) is detected.
The voltage at 5 pin (THM3) of IC76 is displayed.
Normal value
THM1: 43 to 255
THM3: 43 to 255
(Reference voltage: 3.3 V=255)
* If TMP1 or TMP3 becomes out of the normal value range, the protection function works to turn off the power.
P1-3
TMa:224 / 12
THM3
THM1
P1-4. OUTPUT LEVEL
Output level of speaker output is detected.
The voltage at 4 pin (AMP_OLV) of IC78 is displayed.
(Reference voltage: 3.3 V=255)
P1-4
OUTLVL: 255
P1-5. LIMITER CONTROL
Power limiter control is detected.
The voltage at 37 pin (AMP_LMT) of IC90 is displayed.
(Reference voltage: 3.3 V=255)
P1-5
LMTCNT: 255
RX-V681/RX-A760
66
RX-V681/RX-A760
P1-6. KEY
Panel key is detected.
When the A/D conversion value of the panel key becomes out of the specified range, normal operation will not
be available.
In that case, check the constant of voltage dividing resistor, solder condition, etc. Refer to table.
* When P1-6. KEY menu is selected, keys become inoperable due to detection of the values of all keys. How-
ever, it is possible to return to the P1-5. LIMITER CONTROL menu by rotating the VOLUME knob counter-
clocwise.
(Reference voltage: 3.3 V=255)
P1-6
KY:255/255/---
KEY2
KEY1
Display KEY1 Display KEY2
RADIO PURE
0 – 11 0 – 11
(SCENE4) DIRECT
NET TUNING
12 – 32 12 – 32
(SCENE3) >>
TV TUNING
33 – 54 33 – 54
(SCENE2) <<
BD/DVD
55 – 75 55 – 77 AM
(SCENE1)
ZONE
76 – 95 78 – 98 FM
CONTROL
PRESET
96 – 118 ZONE2 99 – 120
>
INPUT > PRESET
119 – 142 121 – 143
(RX-V681) <
RX-V681/RX-A760
INPUT <
143 – 162 144 – 165 MEMORY
(RX-V681)
MAIN ZONE
178 – 197 166 – 185 INFO
z
TONE
198 – 229 186 – 205 STRAIGHT
CONTROL
PROGRAM
225 Key off 206 – 225
>
PROGRAM
226 – 245
<
255 Key off
P1-7. USB-VBUS
Not for service.
P1-7
USB-VBUS:200
67
RX-V681/RX-A760
P2. PROTECTION HISTORY
This menu is used to display the history of protection function.
All history of protection function will be erased by pressing the STRAIGHT key.
* Numeric values in the figure are given as reference only.
P2-1 2-1. History 1
The display will be changed by pressing the “w”(cursor down)
1.PS1 xxx key / “q”(cursor up) key.
xxx: A/D conversion value of
voltage at the moment Setting information for operation of the protection function
when the protection
function worked.
(Reference voltage: 3.3 V POWER ON TIME
P2-x
=255)
X.TIME: -----M The operation time of the power relay (RY106 of
MAIN (3) P.C.B.) is displayed by the unit time of
minute.
0 to 99999 minute (maximum)
P2-2 P2-2. History 2
2.I
P2-x INPUT
X.INPUT:------ The input source which was selected last is
P2-3 P2-3. History 3 displayed.
3.TMP1 xxx
P2-4 P2-4. History 4 VOLUME LEVEL
4.SPK P2-x The volume level which was selected last is
X.VOL.: -.-dB displayed.
MUTE, -80.0 to +16.5 dB
RX-V681/RX-A760
68
RX-V681/RX-A760
S1. FIRMWARE UPDATE
Not for service.
S1-1
F/W UPDATE?
S2. SET INFORMATION
The model name and destination of this unit are displayed.
S2-1. MODEL
The model name of this unit is displayed.
S2-1
MDL:V681 255
Not for service
Model name
V681 : RX-V681
A760 : RX-A760
S2-2. DESTINATION
The destination of this unit is displayed.
S2-2
DEST:U 28
Not for service
Destination
S3. FACTORY PRESET
This menu is used to reserve/inhibit initialization of the back-up IC (EEPROM: IC82 on DIGITAL P.C.B.).
RX-V681/RX-A760
CAUTION: Before setting to the PRESET RESERVED, write down the existing preset memory content of the tuner. (This is
because setting to the PRESET RESERVED will cause the user memory content to be erased.)
S3-1 S3-1. PRESET INHIBIT (Initialization inhibited)
PRESET:INH Initialization of the back-up IC is not executed. Select this sub-menu to protect the values set
by the user.
S3-1 S3-2. PRESET RESERVED (Initialization reserved)
PRESET:RSRV Initialization of the back-up IC is reserved. (Actual initialization is executed when the power is
turned on next.) To reset to the original factory settings or to reset the backup IC, select this
sub-menu and press the MAIN ZONE z key to turn off the power.
69
RX-V681/RX-A760
S4. ROM VERSION/CHECKSUM
The firmware version and checksum values are displayed.
The checksum is obtained by adding the data at every 8-bit and expressing the result as a hexadecimal notation.
* Numeric values in the figure are given as reference only.
S4-1 S4-1. SYSTEM VERSION
SYS-VER. 0.31 The firmware version is displayed.
S4-2 S4-2. FACTORY PRESET
FAC-VER. 0.31 The factory preset version is displayed.
S4-3 S4-3. MICROPROCESSOR VERSION
M-VER.00031 The firmware version of MICROPROCESSOR (IC90 on DIGITAL (1) P.C.B.) is displayed.
S4-4 S4-4. MICROPROCESSOR CHECKSUM
M-SUM.0704 The checksum value of MICROPROCESSOR (IC90 on DIGITAL (1) P.C.B.) is displayed.
S4-5 S4-5. FLASH ROM VERSION
FR-V.00026 The firmware version of FLASH ROM (IC86 on DIGITAL (1) P.C.B.) is displayed.
S4-6 S4-6. FLASH ROM CHECKSUM
FR-S.7292 The checksum value of FLASH ROM (IC86 on DIGITAL (1) P.C.B.) is displayed.
S4-7 S4-7. NETWORK MODULE VERSION
N-VER.0042 The firmware version of Network module is displayed.
RX-V681/RX-A760
S4-8 S4-8 NETWORK MODULE CHECKSUM
N-SUM.A0DCBC18 The checksum value of Network module is displayed.
S4-9 S4-9. DSP1 VERSION
D1-V. 1.02r1 The firmware version of DSP1 (IC931 on DIGITAL (1) P.C.B.) is displayed.
S4-10 S4-10. DSP1 CHECKSUM
D1-S.2968AE90 The checksum value of DSP1 (IC931 on DIGITAL (1) P.C.B.) is displayed.
S4-11 S4-11. DSP2 VERSION
D2-V. 0.70A1 The firmware version of DSP2 (IC932 on DIGITAL (1) P.C.B.) is displayed.
S4-12 S4-12. DSP2 CHECKSUM
D2-S.BF76BB66 The checksum value of DSP2 (IC932 on DIGITAL (1) P.C.B.) is displayed.
70
RX-V681/RX-A760
S4-13 S4-13. INVALID ITEM
INVALID ITEM Not for service.
S4-14 S4-14. INVALID ITEM
INVALID ITEM Not for service.
S4-15 S4-15. FPGA GUI VERSION
FPGA-G-V. 17 The firmware version of GUI section in FPGA (IC50 on DIGITAL (1) P.C.B.) is displayed.
S4-16 S4-16. FPGA SD (Standard Definition) VERSION
FPGA-S-V. 1 The firmware version of SD I/P scaler section in FPGA (IC50 on DIGITAL (1) P.C.B.) is displayed.
S4-17 S4-17. FPGA HD (High Definition) VERSION
FPGA-H-V. 2 The firmware version of HD I/P scaler section in FPGA (IC50 on DIGITAL (1) P.C.B.) is dis-
played.
RX-V681/RX-A760
71
RX-V681/RX-A760
■ POWER AMPLIFIER ADJUSTMENT
1. Right after power is turned on, confirm that the voltage across the terminals of R1152 (CENTER), R1154 (SURROUND
Rch), R1150 (FRONT Lch), R1148 (SURROUND BACK Lch), R1149 (SURROUND BACK Rch), R1153 (SURROUND
Lch) and R1151 (FRONT Rch) are within the confines of 0.1 mV to 10 mV.
2. If measured voltage exceeds 10 mV, remove R1104 (CENTER), R1106 (SURROUND Rch), R1102 (FRONT Lch),
R1100 (SURROUND BACK Lch), R1101 (SURROUND BACK Rch), R1105 (SURROUND Lch) and R1103 (FRONT
Rch), and then reconfirm the voltage.
Attention
If the measured voltage exceeds 10 mV after repairing the power amplifier, check other parts again for any possible
defect before removing the resistor.
3. Confirm that the voltage is within the confines of 0.2 mV to 15 mV after 60 minutes.
0.1 mV – 10 mV
(DC)
R1152 (CENTER) R1104 (CENTER)
R1154 (SURROUND Rch) R1106 (SURROUND Rch)
R1150 (FRONT Lch) R1102 (FRONT Lch)
R1148 (SURROUND BACK Lch) R1100 (SURROUND BACK Lch)
R1149 (SURROUND BACK Rch) R1101 (SURROUND BACK Rch)
R1153 (SURROUND Lch) R1105 (SURROUND Lch)
R1151 (FRONT Rch) R1103 (FRONT Rch)
Front side
SURROUND SURROUND
SURROUND R SURROUND L CENTER FRONT R FRONT L BACK R BACK L
R1154 R1153 R1152 R1151 R1150 R1149 R1148
RX-V681/RX-A760
MAIN (1) P.C.B.
(Side A)
Front side
SURROUND SURROUND
BACK L BACK R FRONT L FRONT R CENTER SURROUND L SURROUND R
R1100 R1101 R1102 R1103 R1104 R1105 R1106
MAIN (1) P.C.B.
(Side B)
72
RX-V681/RX-A760
■ DISPLAY DATA
● V301 : 020MT008GNK (OPERATION P.C.B.)
— 1
PATTERN AREA
● PIN CONNECTION
Pin No. 69 68 67 66 65 67 65 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35
Connection F2 NX NP NP P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31
Pin No. 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Connection P32 P33 P34 P35 P36 P37 NX NX NX NX 20G 19G 18G 17G 16G 15G 14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NP NP NX F1
Note : 1) F1, F2 ..... Filament pin 2) NP ..... No pin 3) NX ..... No extend pin 4) 1G-20G ..... Grid pin
● GRID ASSIGNMENT
20G 19G 18G 17G 16G 15G
col2 col1 col2 col1 col2 col1 S2 S3
1a 2a 1a 2a 1a 2a 1a 2a 1a 3a 4a
FPL FPR
SL SW SR
SBL SB SBR
S7 S8 S9 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G 12G 13G 14G S10
RX-V681/RX-A760
a
a S4
1-1 2-1 3-1 4-1 5-1
j
1-2 2-2 3-2 4-2 5-2 S5
f b f b
h k 1-3 2-3 3-3 4-3 5-3 S5
g m S15 (16G) S16 S6
S4
r n 1-4 2-4 3-4 4-4 5-4
g
e c e c
p 1-5 2-5 3-5 4-5 5-5 S11 S17
1-6 2-6 3-6 4-6 5-6
S12
d S13 d
S14
(20G–16G) 1-7 2-7 3-7 4-7 5-7
(15G)
(16G) (15G)
S1
(1G–14G)
73
RX-V681/RX-A760
● ANODE CONNECTION
20G 19G 18G 17G 16G 15G 1G-14G
P1 1d 1d 1d 1d 1d 1-1
P2 2d 2d 2d 2d S2 2-1
P3 1e 1e 1e 1e 1e S3 3-1
P4 2e 2e 2e 2e S14 3d 4-1
P5 1r 1r 1r 1r 1r 3e 5-1
P6 2r 2r 2r 2r S13 3c 1-2
P7 1p 1p 1p 1p 1p 3g 2-2
P8 2p 2p 2p 2p S12 3f 3-2
P9 1n 1n 1n 1n 1n 3b 4-2
P10 2n 2n 2n 2n S11 3a 5-2
P11 1c 1c 1c 1c 1c 1-3
P12 2c 2c 2c 2c 4d 2-3
P13 col1 col1 col1 S15 4e 3-3
P14 1g 1g 1g 1g 1g 4c 4-3
P15 2g 2g 2g 2g S16 4g 5-3
P16 1m 1m 1m 1m 1m 4f 1-4
P17 2m 2m 2m 2m 4b 2-4
P18 col2 col2 col2 4a 3-4
P19 1f 1f 1f 1f 1f S17 4-4
P20 2f 2f 2f 2f S4 5-4
P21 1h 1h 1h 1h 1h S5 1-5
P22 2h 2h 2h 2h S6 2-5
P23 1j 1j 1j 1j 1j S10 3-5
RX-V681/RX-A760
P24 2j 2j 2j 2j 4-5
P25 1k 1k 1k 1k 1k 5-5
P26 2k 2k 2k 2k FPL 1-6
P27 1b 1b 1b 1b 1b A 2-6
P28 2b 2b 2b 2b D 3-6
P29 1a 1a 1a 1a 1a S 4-6
P30 2a 2a 2a 2a FPR 5-6
P31 – – – F 1-7
P32 – – – – L 2-7
P33 – – – – G 3-7
P34 – – – – H 4-7
P35 S8 – – – – K 5-7
P36 S9 – – – – J S1
P37 S7 – – – – – –
74
RX-V681/RX-A760
■ IC DATA
IC90: TMPM462F15FG (DIGITAL (1) P.C.B.)
Microprocessor
* No replacement part available.
Cortex-M4F
NVIC FLASH
Backup BOOT
1.5MB RAM µDMA
Debug or 192KB
RAM ROM
1.0MB 1KB 4KB (unit A,B,C)
AHB AHB-Lite
Lite (max 120MHz)
AHB to IO AHB to APB
Bridge Bridge
WDT SIO/UART EBIF
(10ch)
TMRB CEC ADC
(16ch) (20ch)
MPT RMC SSP
IO Bus
APB
(2ch) (2ch) (3ch)
PORT RTC UART
(2ch)
IHOSC
OFD LVD I2C
(5ch)
IHOSC
X1
EHOSC CG
X2
XT1
ELOSC
XT2
REGOUT2
AVREFH
REGIN2
DVDD3
RVDD3
DVSS
RVSS
AVSS
PH14
PH13
PH12
PH10
PH11
PN4
PN3
PN2
PH9
PH8
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PL4
PL3
PL2
PL1
PL0
PJ4
PJ3
PJ2
PJ1
PJ0
130
125
120
105
100
115
110
95
90
PL5 AVDD3
RX-V681/RX-A760
PL6 PN1
PL7 135 PN0
DVDD3 85 PG11
DVSS PG10
PB0 PG9
PB1 PG8
PB2 140 PG7
PB3 80 PG6
PB4 PG5
PB5 PG4
PB6 PG3
PB7 145 PG2
DVDD3 75 PG1
D PG0
PB8 PE9
PB9 DVSS
PC0 150 DVDD3
PC1
TMPM462 PE8
70
PC2 PE7
PC3 PE6
TEST PE5
PC4 155 PF13
PC5 65 PF12
PC6
PC7
Top View PF11
PF10
PC8 PF9
PC9 160 DVSS
PC10 60 DVDD3
PC11 PF8
PK0 PF7
DVDD3 PF6
DVSS 165 PF5
PK1 55 PF4
PK2 PF3
PK3 PM14
PK4 PM13
PK5 170 PM12
PK6 50 PM11
PK7 RESET
PK8 XT2
PM0 MODE
PM1 175 XT1
PM2 45 NMI
10
15
20
25
30
35
40
1
5
PM3
PM4
PM5
DVDD3
DVSS
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
REGIN1
REGOUT1
RVDD3
RVSS
REGOUT3
PE0
PE1
PE2
PE3
PE4
DVSS
X1
DVSS
X2
DVDD3
PF0
PF1
PF2
PM6
PM7
PM8
PM9
PM10
75
RX-V681/RX-A760
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
1 PM3/SC8TXD NCPU_SPI_MOSI NCPU_PON O O Network CPU SPI transmission data (Insurance)
2 PM4/SC8RXD NCPU_SPI_MISO NCPU_PON I I Network CPU SPI reception data
3 PM5/SC8SCK/SC8CTS/TBEIN0 NCPU_SPI_SCK NCPU_PON O O Network CPU SPI communication clock
4 DVDD3 DVDD3 ---
5 DVSS DVSS ---
6 PD0/D0/AD0/SC3TXD/I2C2SDA D[0] AC I B External bus
7 PD1/D1/AD1/SC3RXD/I2C2SCL D[1] AC I B External bus
8 PD2/D2/AD2/SC3SCK/SC3CTS D[2] AC I B External bus
PD3/D3/AD3/SC4TXD/I2C3SDA/
9 D[3] AC I B External bus
TB0OUT
PD4/D4/AD4/SC4RXD/I2C3SCL/
10 D[4] AC I B External bus
TB1OUT
PD5/D5/AD5/SC4SCK/SC4CTS/
11 D[5] AC I B External bus
TB2OUT
12 PD6/D6/AD6/TB3OUT D[6] AC I B External bus
13 PD7/D7/AD7/TB4OUT D[7] AC I B External bus
14 PD8/INT0/D8/AD8 D[8] AC I B External bus
15 PD9/INT1/D9/AD9 D[9] AC I B External bus
16 PD10/INT2/D10/AD10 D[10] AC I B External bus
17 PD11/INT3/D11/AD11 D[11] AC I B External bus
18 PD12/INT4/D12/AD12/GEMG0 D[12] AC I B External bus
PD13/INT5/D13/AD13/SC5TXD/
19 D[13] AC I B External bus
I2C4SDA/MT0IN
PD14/INT6/D14/AD14/SC5RXD/
20 D[14] AC I B External bus
I2C4SCL/MT0OUT0/MT0TBOUT
PD15/INT7/D15/AD15/SC5SCK/
21 D[15] AC I B External bus
SC5CTS/MT0OUT1/MT0TBIN
22 REGIN1 REGIN1 ---
23 REGOUT1 REGOUT1 ---
24 RVDD3 RVDD3 ---
25 RVSS RVSS ---
26 REGOUT3 REGOUT3 ---
RX-V681/RX-A760
27 PE0/TRST/CS3/TBBOUT DFF_N_CS AC O B External bus
28 PE1/TDI/TB7IN0 NCPU_AMUTE NCPU_PON I I Mute signal from Network CPU
29 PE2/TDO/SWV/TB7IN1 SWV ARM Debug
30 PE3/TMS/SWDIO/TB8IN0 SWDIO ARM Debug
31 PE4/TCK/SWCLK/TB8IN1 SWCLK ARM Debug
32 DVSS DVSS ---
33 X1 X1 ---
34 DVSS DVSS ---
35 X2 X2 ---
36 DVDD3 DVDD3 ---
37 PF0/TB5OUT AMP_LMT PRY I O Limiter control
38 PF1/RTCOUT/TB6OUT NCPU_PHOLD NCPU_PON O O Network module power supply IC control
39 PF2/ALARM/TB7OUT NCPU_PON NCPU_PON O O NET/USB power supply
40 PM6/SC4TXD DSP_NIC DSP_PON I I NIC from rear DSP (High: when switching image)
41 PM7/SC4RXD NCPU_ADT_MUTE NCPU_PON O O Mute signal to Network module side
41 PM8/SC4SCK/SC4CTS/TBDOUT NCPU_VBUSDRV NCPU_PON I I USB VBUS Drive
43 PM9/SC5TXD I_PRT PRY I I Current protection
44 PM10/SC5RXD HP_N_DET DSP_PON O I Headphone detect
45 NMI NMI ---
46 XT1 XT1 ---
76
RX-V681/RX-A760
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
47 MODE MODE ---
48 XT2 XT2 ---
49 RESET RESET ---
50 PM11/SC5SCK/SC5CTS/TBEOUT MIC_N_DET DSP_PON O I Microphone detect
51 PM12/SC6TXD EX_MOSI AC O O FL/EEPROM transmission data
52 PM13/SC6RXD EEP_MISO AC O I EEPROM reception data
53 PM14/SC6SCK/SC6CTS/TBFOUT EX_SCK AC O O FL/EEPROM communication clock
54 PF3/SC0TXD 232C_DBG_MOSI AC O O Debug / Flash write
55 PF4/SC0RXD/TB9IN1 232C_DBG_MISO AC O I Debug / Flash write
PF5/SC0SCK/SC0CTS/DMAREQA/
56 TU_N_INT PRY I I Interrupt from tuner
TB9IN0
57 PF6/SC1TXD NCPU_MOSI NCPU_PON O O Network CPU UART transmission data
58 PF7/SC1RXD/TBAIN1 NCPU_MISO NCPU_PON I I Network CPU UART reception data
PF8/SC1SCK/SC1CTS/DMAREQB/
59 VOL_MOSI PRY O O VOL1(/VOL2) communication data
TBAIN0
60 DVDD3 DVDD3 ---
61 DVSS DVSS ---
62 PF9/SC2TXD VOL_SCK PRY O O VOL1(/VOL2) communication clock
63 PF10/SC2RXD/TBBIN1 EEP_N_CS AC I O EEPROM chip select
PF11/SC2SCK/SC2CTS/DMAREQC/
64 - AC O O No used
TBBIN0
65 PF12/INT8/RXIN0 REM_IN1 AC O I Remote control pulse input 1
66 PF13/CEC CEC AC I I/O CEC
67 PE5/TRACEDATA0 AD_SEL_A +3.3S_PON O O AD select A
68 PE6/TRACEDATA1 AD_SEL_B +3.3S_PON O O AD select B
69 PE7/TRACEDATA2 AD_SEL_C +3.3S_PON O O AD select C
70 PE8/INT9/TRACEDATA3/ADTRG WAKEUP_INT AC O I Power switch, MISO interrupt of 232C (Sleep return)
71 DVDD3 DVDD3 ---
72 DVSS DVSS ---
73 PE9/INTA/TRACECLK/SCOUT ACPWR_DET AC I I AC Power Detect
74 PG0/SP2FSS +3.3S_PON +3.3S_PON O O +3.3S power supply
RX-V681/RX-A760
75 PG1/SP2DO MT_N_SB_PO +3.3S_PON O O Mute Surround Back Preout
76 PG2/SP2DI MT_N_SB +3.3S_PON O O Mute BA/Z2/FP (Main In)
77 PG3/SP2CLK MT_N_5CH +3.3S_PON O O Mute 5ch (L,C,R,SRL,SRR (Preout/Main In))
78 PG4/I2C0SDA/SP2FSS MT_N_Z2 +3.3S_PON O O Mute Zone2 (Line out)
79 PG5/I2C0SCL/SP2FSS MT_N_SW +3.3S_PON O O Mute Subwoofer (Preout)
80 PG6/I2C1SDA SPRY_5CH PRY O O SP relay 5CH (L,C,R,SRL,SRR)
81 PG7/I2C1SCL MT_N_HP +3.3S_PON O O Mute Headphone
82 PG8/TB0IN0 SPRY_SB&BA PRY O O SP relay SRB & BA(Bi-Amp)
83 PG9/TB1IN0 SPRY_Z2&FP PRY O O SP relay Zone2 & FrontPresence
84 PG10/TB2IN0 DIR1_N_INT DSP_PON O I Interrupt from DIR1
85 PG11/TB3IN0 DSP1_N_INT DSP_PON O I Interrupt from DSP1
86 PN0/I2C2SDA DSP2_N_RST DSP_PON O O DSP2 reset
87 PN1/I2C2SCL DSP1_N_RST DSP_PON O O DSP1 reset
88 AVDD3 AVDD3 ---
89 VREFH VREFH ---
90 AVSS AVSS ---
91 PH0/AIN0 KY_AD1 AC I I Key 1
92 PH1/AIN1 KY_AD2 AC I I Key 2
93 PH2/AIN2 - AC I I No used
94 PH3/AIN3 AD1_COM +3.3S_PON O I AD selector 1 COM input
77
RX-V681/RX-A760
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
95 PH4/AIN4 AD2_COM +3.3S_PON O I AD selector 2 COM input
96 PH5/AIN5 VOL_RB AC I I Volume B
97 PH6/AIN6 VOL_RA AC I I Volume A
98 PH7/AIN7 ISEL_RB AC I I Input selector B
99 PH8/AIN8 ISEL_RA AC I I Input selector A
100 PH9/AIN9 DIR1_N_CS DSP_PON O O DIR1 chip select
101 PH10/AIN10 DSP2_N_CS DSP_PON O O DSP2 chip select
102 PH11/AIN11 DSP2_N_SPIRDY DSP_PON O I DSP2 SPI Ready
103 PH12/AIN12 DSP1_N_CS DSP_PON O O DSP1 chip select
104 PH13/AIN13 DSP1_N_SPIRDY DSP_PON O I DSP1 SPI Ready
105 PH14/AIN14 MT_DA DSP_PON O O Mute Digital Audio
106 PJ0/AIN15 STBY_LED AC O O Standby LED control
107 PJ1/AIN16/TBCIN0 HAU_N_INT HDMI_PON O I HDMI RTX audio mute interrupt 1 (MN864787 NIRQA0)
108 PJ2/AIN17/INTD/TBCIN1 - AC O O No used
109 PJ3/AIN18/INTE/TBDIN0 HRX_N_INT HDMI_PON O I HDMI RTX HDCP interrupt (MN864787 NIRQ0)
110 PJ4/AIN19/INTF/TBDIN1 HTX_N_INT HDMI_PON O I HDMI RTX CEC interrupt (MN864787 NIRQ1)
111 RVDD3 RVDD3 ---
112 RVSS RVSS ---
113 REGIN2 REGIN2 ---
114 REGOUT2 REGOUT2 ---
HDR_MOSI/TUN_
115 PN2/SC3TXD/I2C2SDA PRY O I/O HD Radio transmission data/Tuner I2C data
SDA
HDR_MISO/TUN_
116 PN3/SC3RXD/I2C2SCL PRY O O HD Radio reception data/Tuner I2C clock
SCL
117 PN4/SC3SCK/SC3CTS/TBCOUT DACZ2_N_MT DSP_PON O O Zone2DAC mute
118 PA0/A0/SP0FSS A[0] AC O B Eternal bus
119 PA1/A1/SP0D0 A[1] AC O B Eternal bus
129 PA2/A2/SP0DI A[2] AC O B Eternal bus
121 PA3/A3/SP0CLK A[3] AC O B Eternal bus
122 PA4/A4/SP1FSS A[4] AC O B Eternal bus
123 PA5/A5/SP1DO A[5] AC O B Eternal bus
RX-V681/RX-A760
124 PA6/A6/SP1DI A[6] AC O B Eternal bus
125 PA7/A7/SP1CLK A[7] AC O B Eternal bus
126 DVDD3 DVDD3 ---
127 DVSS DVSS ---
128 PL0/A0/SC9TXD FPGA_MOSI VID_PON O O FPGA transmission data（at Boot）
129 PL1/A1/SC9RXD - AC O O No used
130 PL2/A2/SC9SCK/SC9CTS/TBFIN1 FPGA_SCK VID_PON O O FPGA clock（at Boot）
131 PL3/A3/RXIN1/TBFIN0 - AC O O No used
132 PL4/A4/I2C3SDA DV_SDA VID_PON O I/O DVideo/AVideo 400k I2C data
133 PL5/A5/I2C3SCL DV_SCL VID_PON O O DVideo/AVideo 400k I2C clock
134 PL6/A6/I2C4SDA HDMI_SDA HDMI_PON O I/O HDMI 400k I2C data (MN864787/SiI9589/SiI9587)
135 PL7/A7/I2C4SCL HDMI_SCL HDMI_PON O O HDMI 400k I2C clock (MN864787/SiI9589/SiI9587)
136 DVDD3 DVDD3 ---
137 DVSS DVSS ---
138 PB0/A8/TB8OUT A[8] AC O B External bus
139 PB1/A9/TB9OUT A[9] AC O B External bus
140 PB2/A10/UT1DCD A[10] AC O B External bus
141 PB3/A11/UT1DSR A[11] AC O B External bus
142 PB4/A12/UT1DTR A[12] AC O B External bus
143 PB5/A13/UT1RIN A[13] AC O B External bus
78
RX-V681/RX-A760
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
144 PB6/A14/UT1CTS A[14] AC O B External bus
145 PB7/A15/UT1RTS A[15] AC O B External bus
146 DVDD3 DVDD3 ---
147 DVSS DVSS ---
Sleep system power supply control（Insurance assign for
148 PB8/UT1TXD/UT1IROUT +3.3MS_PON AC O O
Micro-compressor）
149 PB9/UT1RXD/UT1IRIN DFF_FROM_N_RST AC O O Reset of DFF and eternal ROM
150 PC0/A0/A16/TB4IN0 A[16] AC O B External bus
151 PC1/A1/A17/TB4IN1 A[17] AC O B External bus
152 PC2/A2/A18/TB5IN0 A[18] AC O B External bus
153 PC3/A3/A19/TB5IN1 A[19] AC O B External bus
154 VPP VPP ---
155 PC4/A4/A20/GEMG1 A[20] AC O B External bus
156 PC5/A5/A21/MT1IN A[21] AC O B External bus
157 PC6/A6/A22/MT1OUT0/MT1TBOUT A[22] AC O B External bus
158 PC7/A7/A23/MT1OUT1/MT1TBIN A[23] AC O B External bus
159 PC8/INTB/ALE NCPU_N_INT NCPU_PON O I Network CPU interrupt
160 PC9/CS0/TBAOUT FPGA_N_CS AC O B External bus
161 PC10/CS1/TB6IN6 FLASH_N_CS AC O B External bus
162 PC11/CS2/TB6IN1 - AC O O No used
163 PK0/UT0TXD/UT0IROUT HSW1_N_INT HSW_PON O I HDMI Switcher interrupt (Sii9589 INT)
164 DVDD3 DVDD3 ---
165 DVSS DVSS ---
166 PK1/UT0RXD/UT0IRIN HSWI2C_ON HSW_PON O O HDMI Switcher I2C control (spare) (SiI9589/SiI9587）
167 PK2/BELL/UT0DCD FHDMI_N_INT HDMI_PON O I FrontHDMI interrupt (SiI9587 INT)
168 PK3/BELH/UT0DSR NCPU_SPI_N_CS NCPU_PON O O Network CPU SPI chip select
169 PK4/WR/UT0DTR MCBUS_N_WR AC O B External bus
170 PK5/RD/UT0RIN MCBUS_N_RD AC O B External bus
171 PK6/WAIT/UT0CTS NCPU_N_RST NCPU_PON O O Network CPU reset
172 PK7/BCLK/UT0RTS USB_VBUS_PON NCPU_PON O O USB VBUS power supply control
RX-V681/RX-A760
173 PK8/INTC/BOOT BOOT Boot
174 PM0/SC7TXD DSP_MOSI DSP_PON O O DSP/DIR transmission data
175 PM1/SC7RXD DSP_MISO DSP_PON I I DSP/DIR reception data
176 PM2/SC7SCK/SC7CTS/TBEIN1 DSP_SCK DSP_PON O O DSP/DIR communication clock
79
RX-V681/RX-A760
Key detection for A/D port
Key input (A/D) pull-up resistance: 10 k-ohms
0Ω + 1.0 k Ω + 1.0 k Ω + 1.5 k Ω + 1.5 k Ω + 2.2 k Ω
Detected voltage value
0 – 0.15 V 0.15 – 0.42 V 0.43 – 0.70 V 0.71 – 0.97 V 0.98 – 1.24 V 1.25 – 1.53 V
at 91 pin
A/D value
0 – 11 12 – 32 33 – 54 55 – 75 76 – 95 96 – 118
(3.3 V=255)
RADIO NET TV BD/DVD ZONE
KEY1 ZONE2
(SCENE4) (SCENE3) (SCENE2) (SCENE1) CONTROL
+ 3.3 k Ω + 4.7 k Ω + 2.2 k Ω + 3.3 k Ω
Detected voltage value
1.54 – 1.84 V 1.85 – 2.22 V 2.23 – 2.62 V 2.63 – 3.04 V
at 91 pin
A/D value
119 – 142 143 – 162 178 – 197 198 – 229
(3.3 V=255)
INPUT > INPUT < MAIN ZONE z TONE
KEY1
(RX-V681 model) (power) CONTROL
0Ω + 1.0 k Ω + 1.0 k Ω + 1.5 k Ω + 1.8 k Ω + 2.2 k Ω
Detected voltage value
0 – 0.15 V 0.16 – 0.42 V 0.43 – 0.70 V 0.71 – 0.99 V 1.00 – 1.27 V 1.28 – 1.56 V
at 92 pin
A/D value
0 – 11 12 – 32 33 – 54 55 – 77 78 – 98 99 – 120
(3.3 V=255)
PURE TUNING TUNING PRESET
KEY2 AM FM
DIRECT >> << >
+ 3.3 k Ω + 4.7 k Ω + 6.8 k Ω + 10 k Ω + 22 k Ω + 68 k Ω
Detected voltage value
1.57 – 1.86 V 1.87 – 2.14 V 2.15 – 2.39 V 2.40 – 2.65 V 2.66 – 2.91 V 2.92 – 3.17 V
at 92 pin
RX-V681/RX-A760
A/D value
121 – 143 144 – 165 166 – 185 186 – 205 206 – 225 226 – 245
(3.3 V=255)
PRESET PROGRAM PROGRAM
KEY2 MEMORY INFO STRAIGHT
< > <
80
RX-V681/RX-A760
• Microprocessor extended port
IC76, 78: SN74LV4051APWR (DIGITAL (1) P.C.B.)
8-channel analog multiplexers/demultiplexers
Y4 1 16 VCC
Y6 2 15 Y2
COM 3 14 3
Y1 COM
Y7 4 13 Y0
Y5 5 12 13
Y3 Y0
INH 6 11 A
GND 7 10 B 14
11 Y1
GND 8 9 C A
15
Y2
12
10 Y3
B
INPUTS ON
1
INH C B A CHANNEL Y4
L L L L Y0
5
L L L H Y1 9 Y5
C
L L H L Y2
L L H H Y3 2
Y6
L H L L Y4
L H L H Y5 4
6 Y7
L H H L Y6 INH
L H H H Y7
H X X X None
IC76
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
1 Y4 PS1_PRT +3.3S_PON I I Power Supply protection 1
2 Y6 PS2_PRT +3.3S_PON I I Power Supply protection 2
4 Y7 AUD_DET PRT I I Audio signal detection
5 Y5 THM3 PRT I I Temperature detection 3
RX-V681/RX-A760
12 Y3 – +3.3S_PON I I ---
13 Y0 HW_DET +3.3S_PON I I Hardware detection
14 Y1 MODEL +3.3S_PON I I Model destination
15 Y2 PS3_PRT AC I I Power Supply protection 3
IC78
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
1 Y4 THM1 +3.3S_PON I I Temperature detection 1
2 Y6 THM2 +3.3S_PON I I Temperature detection 2
4 Y7 AMP_OLV PRY I I Amplifier output level detection
5 Y5 DC_PRT PRY I I DC protection
12 Y3 THM4 +3.3S_PON I I Temperature detection 4
13 Y0 USB_VBUS_PRT +3.3S_PON I I Front USB overcurrent detection
14 Y1 TEST +3.3S_PON I I ---
15 Y2 MODE +3.3S_PON I I Special modedistinction
81
RX-V681/RX-A760
IC79, 81: TC74VHC273FT (EL,K) (DIGITAL (1) P.C.B.)
Octal D-type flip-flop with clear
CLR 1 20 VCC
Q1 2 19 Q8 D1 D2 D3 D4 D5 D6 D7 D8
1 3 4 7 8 13 14 17 18
D1 3 18 D8 CLR
D R D R D R D R D R D R D R D R
D2 4 17 D7
Q2 5 16 Q7
Q3 6 15 Q6 CK Q CK Q CK Q CK Q CK Q CK Q CK Q CK Q
11
CK
D3 7 14 D6
D4 8 13 D5
2 5 6 9 12 15 16 19
Q4 9 12 Q5
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
GND 10 11 CK
Inputs Output
Function
CLR D CK Q
L X X L Clear
H L L −
H H H −
H X Qn No Change
IC79
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
2 D[8] HRTX_N_RST HDMI_PON O O HDMI receiver/transmitter reset
5 D[9] HDIN_HPD1 HDMI_PON O O FL driver +3.3V power supply control
6 D[10] HDIN_HPD2 HDMI_PON O O FLD reset
9 D[11] HDIN_HPD3 HDMI_PON O O HDMI transmitter sound select
12 D[12] HDMI_PON HDMI_PON O O HDMI power supply (Necessary for DSP, A-VIDEO drive)
RX-V681/RX-A760
15 D[13] HSW_N_RST HDMI_PON O O HDMI switcher reset (L period: more than 5ms)
16 D[14] HSW_PON HSW_PON O O HDMI to DIR sound output enable
19 D[15] - AC O O No used
IC81
I/O
Pin Related Power Supply
Port Name Function Name Detail of Function
No.
OFF ON
2 D[0] DIAG_CHECK AC O O Diag check result output
5 D[1] +3.3D_PON +3.3D_PON O O OR of NCPU_PON, DSP_PON
6 D[2] TUN_N_RST PRY O O Tuner reset
9 D[3] PRY PRY O O Power relay
12 D[4] --- AC O O No used
15 D[5] PA_B_RY PRY O O Power amplifier B power supply control
16 D[6] PD_LED PRY O O Pure direct LED
19 D[7] DIR_N_RST DSP_PON O O DIR reset
82
A B C D E F G H I J
RX-V681/RX-A760
1 ■ BLOCK DIAGRAMS AUDIO Section Block Diagram
AV1_D
AV1 IC946
ADT
Selector SPDIF
AV2_D MUX
AV2 NET_ADT_I2S I2S / DSD
AV3_D
TC74VHC157
IC486
Other Digital signal
AV3
Distribution Analog
DAC ADT
AV4
AV4_D
IC942
PCM5101A Control
DSP_ADT_I2S
SPDIF DIR
Network Module DIT
Selector PCM9211
2 Network
NET_ADT_I2S
AV1_D
USB Microprocessor
AV2_D
AV3_D
NET_I2S_SD1-3 NET_I2S_SD1-3
AV4_D IC931 IC932
DIR
AM3352BZCZ60 HDMI_ARC IC482
Ethernet NET_I2S_SD0 NET_I2S_SD0
HDMI_SPDIF DA_FL/FR
DSP1 DSP2_I2S DSP2 DSP2_I2S_F/C/SW/ MAIN ZONE
I2S SR/SB
Selector SD0-5 DA_SL/SR
DAC
D81YK113DZKB5 DA_SBL/SBR
HDMI1 DIR_ADT_I2S
D81YK113DZKB5 PCM5102A X4
DA_C
IC7 HDMI_I2S_SD0/DSD IC484
DIR_I2S DA_SW
HDMI IC485
HDMI2 RECEIVER/TRANSMITTER
NET_I2S_SD0
IC483
HDMI_SD1-3/DSD HDMI_SD1-3/DSD
DIGITAL
PTY_I2S
MN864787 ADL/R
HDMI_SPDIF ADC
HDMI_SD1-3/DSD
IN / OUT HDMI3
NET_I2S_SD1-3
AUP_I2S AUP_I2S
AUP_I2S
PTY_I2S
HDMI4
PTY_I2S
NET_I2S_SD0
HDMI5
IC2
HDMI SWITCH
IC945 DIGITAL
NET/PARTY DAC
SII9589-3
IC481 Selector • See page 111–117 →
NET/PARTY
MUX SCHEMATIC DIAGRAM
DAC
PCM5101A TC74VHC157
IC423
MAIN
FRONT HDMI HDMI PP
SII9587-3 • See page 124–125 →
4 HDMI_ARC
SCHEMATIC DIAGRAM
K-MIX AMP
HDMI OUT1
MIC_T
HP AMP Head Phone
no use MUTE_HP
NET/PARTY
K-MIX_L/R
DA_FL/FR
RY104
ADL/R
FL/FR FL / FR
ADL/R
DA_FL/FR
DA_SW
K-MIX_L/R
DA_SBL/SBR
NET/PARTY
DA_SL/SR
DA_C
RY103
C Center
LEVEL
AV5 RY102
5
CIN
FIN3
ADC
SBIN
SIN
SWIN
FIN
Input selector Mode selector
SL/SR SL / SR SPEAKER OUT
MUTE OUTPL/R
AV6 IN1 Main SPRY_5CH
Front
IN8 OUTFL/R
VOL MUTE RY105
IN9 Sub1
AUDIO1 IN6
SBL/SBR SBL / SBR
MUTE
SPRY_SB
IN7 Sub2
Center OUTC
VOL MUTE
AUDIO2 RY106
IN2
MUTE
EX SP
Surround OUTSL/R SPRY_Z2
IN3
VOL MUTE
ANALOG MUTE
IN / OUT IN12 Surr back
OUTSBL/R
VOL MUTE_5CH
6 MUTE MUTE
SW MUTE_SB
TUNER VOL
OUTSW
MUTE
OPERATION IC157 BD34703
MAIN_OUT REC
ZONE2_OUT SUB
IC154
4.62dB MUTE
YPAO MIC MUTE_SW
LEVEL
• See page 118–123 → IC159
SCHEMATIC DIAGRAM ADT
AUDIO_DET
PRE OUT
MIC_T
AUDIO Detect AMP
ZONE2 OUT MUTE To Future DIGITAL
7 MUTE_Z2
ZONE2 AD SAN-PH SW1
SW2
83
A B C D E F G H I J
RX-V681/RX-A760
1 FRONT IN
• See page 112 →
DIGITAL P.C.B. Section Block Diagram
DIGITAL (2)
SCHEMATIC DIAGRAM
HDMI PP
DIGITAL (2) Sil9587-3
Front USB
IC423
Ethernet
IN5 IN4 IN3 IN2 IN1 OUT1
CEC
2
HDMI_SCL/SDA
ARC
USB_DP/DM
HDMI PP Apple TX/RX
72, 73
Sil9589-3 HDMI TRX Authentication
HDMI_SCL/SDA IC2 MN864787 IC953 I2C
166, 168
IC7
NCPU_SPI Network
HDMI_SCL/SDA
170 63 151 NCPU_UART Module
AUP_SDO NCPU_ADT_SDO NW-01
XL1
McASP1(RX)
27MHz
16bit 21bit 8bit NCPU_SD0~SD3
McASP0(TX)
HDMI_I2S/DSD/SPDIF
3 Buffer McASP1(TX)
LCX245
16bit
SDRAM IC952
256Mbit ARC
ADCVBS
35
AIN1
FPGA Buffer
8bit IC53 PTY_SDO
ADPb 47 AIN4 VIDEO DEC EP4CE15 IC4 5
MUX NPDA_SEL DAC
VIDEO Input ADV7180 TC74VHC157 PCM5101A NPL/NPR NET/PARTY
ADPr 48 AIN5 53, 54
IC50 Buffer NCPU_ SD0 6, 7
Analog Audio
ADY 49 AIN6 IC21 DV_SCL/SDA
LCX245
6 IC945 IC481
NPSEL_N_OE
21 22 FPGA_N_CS IC17
16bit
28.63636MHz
XL21
NCPU_ADT_SDO
7 MUX ADT_SEL
Flash ROM 16bit AUP_SDO DSP_ADT_SDO
TC74VHC157
ADT_N_EN
64Mbit 5 IC946
4
IC86
FLASH_N_CS
D-FF
VXC273 16bit
DIR_ADT_SDO
IC79/81
NCPU_DSD
IC83/88
DV_SCL/SDA
NCPU_SD1~SD3 NCPU_SD0
RS232C
MPIO_B
NCPU_UART
AUXIN0
NCPU_SPI
FPGA_SPI
HDMI_SPDIF
RXIN2
DFF1_N_CS HDMI_I2S SD0
HDMI_ARC
MPIO_C RXIN3
AV4_D
CEC 16bit MPIO_A3
AV3_D
DIR MPIO_A2
Debug/E8a HDMI_I2S SD1~SD3 DIR_SDO MAIN
PCM9211 AV2_D SPDIF Input
MPIO_A1
HDMI_DSD Output
AVIDEO DSP1
DSP_ADT_SDO
DV_SCL/SDA AV1_D
133, 132 DSP_SPI IC942 MPIO_A0
5 D81YK113DZKB5
PTY_SDO
HDMI_SCL/SDA 135, 134
TUNER IC931 ADC
ADL/ADR
Analog Input
DSP_SPI
FLD Buffer System CPU AXR1[0]:HDMI_SPDIF/FR DSP2_
39 40
IC93 AXR1[1]:DIR_SDO
AXR0[3]:DSP2_SD0
SD0~SD5
TOSHIBA AXR1[2]:HDMI_SD1/FC
AXR0[4]:DSP2_SD1 24.576MHz
AXR1[3]:HDMI_SD2/LFE
TMPM462F15FG AXR0[5]:DSP2_SD2 XL941
Analog MUX IC90 F2
AXR1[4]:HDMI_SD3/RR
AXR0[6]:DSP2_SD3
DSP2
EEPROM
22.8MHz
AXR1[5]:HDMI_W CK/RL
DSP_SPI
XL921
AXR0[7]:DSP2_SD4
IC76 AXR1[6]:NCPU_SD1
D81YK113DZKB5 DAC
AXR0[8]:DSP2_SD5
512Kbit RAM: 193K Byte AXR1[7]:NCPU_SD2 DSP_ADT_SDO
IC82
F1 AXR1[8]:NCPU_SD3 IC932 PCM5101A Audio Distribution
Analog MUX ROM: 1.5M Byte AXR1[3]:DSP2_SD0
IC486
AXR1[4]:DSP2_SD1 AXR0[3]:DSP2_SB
IC78
AXR1[5]:DSP2_SD2 AXR0[4]:DSP2_SR
32bit F2 AXR1[6]:DSP2_SD3 AXR0[5]:DSP2_CSW
22.8MHz
AXR1[7]:DSP2_SD4 AXR0[6]:DSP2_F FL/FR
DA_SD_
XL922
KY_AD2 92 AXR1[8]:DSP2_SD5 AXR0[9]:PTY_SDO DAC
F, CSW, SR, SB C/SW
AXR0[11]:DSP_ADT_SDO
KY_AD1 91 F1 PCM5102A MAIN ZONE
SDRAM Serial Flash AUP_SDO SRL/SRR
6 33 35 IC482
SBL/SBR
Analog Audio
SPDIF
128Mbit X2 32Mbit
12MHz CERALOCK
IC924/925 IC926 32bit IC483
XL75
I2S / DSD IC484
IC485
Other Digital signal SDRAM Serial Flash
Analog
128Mbit X2
32Mbit
IC928/929 IC930
Control
DIGITAL (1)
• See page 111–117 →
DIGITAL (1)
7 SCHEMATIC DIAGRAM
84
A B C D E F G H I J
RX-V681/RX-A760
1 VIDEO Section Block Diagram
V-AUX
IC423
HDMI PP
SII9587-3
2
IC2
IN5
HDMI SWITCH
SII9589-3
HRX_DE
HRX_VS
IN4
AD_CVBS HRX_HS
AIN1 HRX_CLK
HRX_Y[0:7]
AIN3 HRX_C[0:7]
IC21
AIN2 IC50
VIDEO Dec DEOUT
AD_Pr FPGA VSYNCOUT
IN3
AIN5
3
ADV7180
EP4CE15F17C6N HSYNCOUT HDMI IN
AD_Pb PCLKOUT
AIN4 P[8:15] VDEC_YC[0:7] Q[8:15]
IC7
Field/DE VDEC_DE Q[16:23]
HTX1_C[0:9]
HTX1_Y[0:9]
LLC VDEC_CLK
HTX1_CLK
AD_Y HDMI
HTX1_VS
HTX1_HS
HTX1_DE
AIN6 HS VDEC_HS RECEIVER/TRANSMITTER
IN2
VS VDEC_VS
MN864787
PCLKIN
IN1
DEIN
HSYNCIN
VSYNCIN
D[6:7],[16:23]
D[3:5],[8:15]
4
OUT1
HDMI OUT
IC341
NJW1329
AV5
AV6 VIN1
VIN2
VIDEO VIN3
VIN4 VOUT1
6dB 75
AV4 • See page 111–117 →
VIN6 DIGITAL
5 VIN7
SCHEMATIC DIAGRAM DIGITAL
AV3
6dB 75
• See page 118–123 → VIDEO
OPERATION
SCHEMATIC DIAGRAM
AD_CVBS CVBS
MONITOR OUT
YIN1
VIDEO
YIN2 YOUT
6dB 75
YIN3
AD_Y
PBIN1
6 COMPONENT
PBIN2 PBOUT AD_Pb
AV2 PBIN3 6dB 75 MONITOR OUT MONITOR OUT
AD_Pr
COMPONENT
PRIN1
VIDEO PRIN2 PROUT
6dB 75
PRIN3
AV1
85
A B C D E F G H I J
RX-V681/RX-A760
1 Power Supply Section Block Diagram
SP Impedance relay
POWER TRANSFORMER +B
DC-DC converter 1.8D DC-DC converter 1.1DH
+B (Power Amp)
RY101
+5.6V IC944 IC1
Q254
C1084 BD9328EFJ +1.8D RAL035P01 +1.8DV BD9328EFJ +1.1DH
FUSE
F3702 In Ou t +1.8DV (Video Dec) +5.6V In Ou t
+1.1DH (Pana)
+1.8D
+1.1DH
+ -
Adj
Adj
C1085 Q256
+3.3D_PON HDMI_PON
-B VID_PON
-B (Power Amp)
2
DC-DC converter 1.2DH
IC6
BD9328EFJ +1.2DH
IC105
BD00GA3W EFJ IC45
In Ou t
+1.2DH (HDMI SW)
+5HP +1.2DH
In Ou t
+5HP (HP amp) RP115H121D +1.2DV (FHDMI)
+5V In Out
+1.2DV (FPGA)
Adj
+1.2DV
Gn d
Gn d
IC103
NJM7812FA +12V VID_PON HSW _PON
In
+12V
Out
Q1532 +12V (Ope amp)
C4488 +7A
+7A (Volume IC) IC57
Gn d
RP109L121D +1.2FPLL
In Out
+1.2FPLL (FPGA)
+1.2FPLL
Gn d
IC951
VID_PON R1172H501D +5NET
In Out
+5NET (Network)
-7A +5USB
Gn d
IC921
-7A (Volume IC)
Gn d
A1708 RP115H131D +1.3DSP1
-12V
In -12V Out Q1533
-12V (Ope amp)
In Out
+1.3DSP1 (DSP) NCPU_PON
KIA7912PI +1.3DSP1
3 IC104
Gn d
IC5
DSP_PON RP130K501D +5HSW
In Out
+5HSW (HDMI SW)
Q3802 IC927
KTA1046
Trigger out RP115H131D +1.3DSP1
+5HSW
(FHDMI)
Gn d
In Out
+12V (Trigger out) +1.3DSP2 (DSP)
+1.3DSP2 HSW _PON
D1051
Gn d
Q3804 DSP_PON IC3
Q3803 Q3801 RP109L331D
+ -
DC_TRG
DC-DC converter 3.3D In Out +3.3HPLL
+3.3HPLL (Pana PLL)
+3.3HPLL
• See page 124–125 →
IC943
MAIN
Q9201
Gn d
BD9329AEFJ
+3.3D RAL035P01 +3.3DSP
In Ou t
+3.3DSP (DSP) HDMI_PON
SCHEMATIC DIAGRAM +3.3D
Adj
IC11
Q9202 R1163N501B +5HT1
IC949
In
+5HT1
Out
+5HT1 (HDMI Out1 +5V)
+3.3D_PON R5527K001D +3.3DAC
DSP_PON In Out
+3.3DAC (DAC)
Gn d
+3.3DAC
HDMI_PON
Gn d
PL1 RY371
DAC_PON
4
IC344
RP170H331B +3.3T
In Out
+3.3T (Tuner)
+3.3T IC948
R5527K001D
AC-DC Converter
Gn d
+3.3NPDAC
40W(5.6V/7.2A)
In Out
+3.3NPDAC (DAC)
Q3751 T3702 VE +3.3DAC
D3701
Gn d
T3701 RAL035P01 DC-DC Converter IC342
MCH6336 RP170H331B +3.3V DACZ2_PON
- + In
+3.3V
Out
+3.3V (Video)
R
Gn d
IC346
Q3750 R VE
R
Q3752 R IC923
RP130K501D
RY371 +5DSP
R VE
BD7541 In
+5DSP
Out
+5DSP (Optical/Coaxial)
PRY PRY Q5
IC372 R RAL035P01 +3.3HRT
+3.3HRT (Pana)
Gn d
R VE -3.3V
D2704
Q3413 -3.3V (Video) DSP_PON
2N5401C
5
Q6
IC383 IC922
BD00GA3W EFJ RP130Q331D +3.3DIR
+5A (4.7V)
In Ou t
+5A (DIR ADC) HDMI_PON
In
+3.3DIR
Out
+3.3DIR (DIR)
+5A
Gn d
+5AE
Gn d
DSP_PON
+5AE +5AE
IC382
RP170H331B +3.3A Q11 IC85
In Out
+3.3A (DAC) RAL035P01 +3.3HSW RP130Q331D
+3.3A +3.3HSW (HDMI SW) +3.3M
In Out
+3.3M (u-com)
(FHDMI) +3.3M
Gn d
Gn d
Q12
+5AE
HSW _PON
T301 IC84
DC-DC Converter Q3006 RP130Q331D +3.3S
Q3011 for FL 2N5551C-AT/P In Out
+3.3S
2SC4488 +3.3S
RAL035P01 +VP
MCH6336
Gn d
Q450
RAL035P01 +3.3DV +3.3S_PON
VFD +3.3DV (Video Dec)
Q3010 (FPGA) IC941
R Q5
F1 R1173S001B
6
RAL035P01 +5USB
FC
Q451 In
+5USB
Out
+5USB (USB)
R IC27
F2 RP109L181D
FLP_PON
Gn d
+1.8DPLL
VID_PON In Out +1.8DPLL (Video Dec)
+1.8DPLL
USB_VBUS_PON
Gn d
FLP_PON Q9403
(Discharge) +1.8DV
IC55
RP109L251D
IC302 +2.5DV
RP130Q331D
In Out
+2.5FPGA (FPGA)
+3.3FLD +2.5FPGA
In Ou t
3.3FLD (VFD IC)
Gn d
+3.3V
VID_PON
Gn d
FLD_PON
• See page 118–123 →
OPERATION • See page 111–117 →
SCHEMATIC DIAGRAM DIGITAL
SCHEMATIC DIAGRAM
7
86
A B C D E F G H I J
RX-V681/RX-A760
1 ■ WIRING DIAGRAM
Top view AM/FM Side view
OPERATION (8) OPERATION (9)
• OVERALL ASSEMBLY TUNER
MAIN (2) R, V, S models
Power cable CB111
80 mm W3703 to OPERATION (2)
(3-1/8") W3704 CB391 Don’t touch with
CB374 (CB344) OPERATION (4) TOP COVER.
W3707 CB101 to OPERATION (4)
CB76 DIGITAL (1) CB945
to OPERATION (3)
CB371 PN371 W105 to MAIN (1) (CB103)
(CB381)
to MAIN (1)
CB381 CB383
to MAIN (1) • AMP UNIT
Don’t touch with HS101 CB1 (CB153)
Cord Stopper (CB371) CB102 OPERATION (2) (W116) CB382
AM/FM OPERATION (9)
on MAIN (1) P.C.B. Don’t touch with
2 PN941 CB946 Top view HEATSINK.
to MAIN (1) TUNER
Don’t touch with HS101 on MAIN (1) P.C.B.
PN102 CB951 (CB154) W154 OPERATION (4)
And, must not be close to T3701 on
OPERATION (3) P.C.B. PN109
CB942
CB944 NETWORK
to MAIN (1)
MODULE to MAIN (1) (W109)
(CB155) W155
OPERATION (3) to MAIN (1) (W108)
CB948
W103B
CB361
CB941 W104B W110 to OPERATION (4)
CB949 to OPERATION (2) CB345 (CB383)
to MAIN (1) CB6 to DIGITAL (1) CB344
CB78 CB80 CB79 CB82 (CB343) to OPERATION (8)
(W106) W105 (CB76)
(CB391)
CB384
W106
Don’t touch with
HEATSINK. MAIN (1) to OPERATION (3) CB346
CB342
CB343
PN105 (W3705) CB347
HS101
3 W112 W101C OPERATION (2) to DIGITAL (1)
W108
POWER MAIN (6) W101A (CB80)
W109
TRANSFORMER
MAIN (3) PN101 to DIGITAL (1)
MAIN (5) MAIN (4) W103A (CB78)
to OPERATION (7) (CB308)
W104A MAIN (1)
MAIN (7) to OPERATION (1) (W309) (RX-V681)
(RX-V681) CB308 (RX-V681) W101B
PN106 to OPERATION (7) (W302) W101D
CB302 to OPERATION (12) (W308) (RX-A760)
CB422 (RX-A760)
to OPERATION (1) (W310)
(RX-V681)
View A
to OPERATION (12) (W309) to OPERATION (1) (CB303) to OPERATION (1) to OPERATION (1)
(RX-A760) (RX-V981) (CB306)
to OPERATION (1) (CB304) (CB306) (RX-V681)
RX-A760
MAIN (7) AMP UNIT W4201
Don’t touch with
(RX-A760)
4 (RX-A760)
to DIGITAL (1) (CB6)
HEATSINK. to OPERATION (1)
DIGITAL (2) (CB305) (RX-A760)
RX-V681 to MAIN (1) OPERATION (5)
Front panel (View A) (W106)
OPERATION (7) Flexible flat cable 60 mm (2-3/8")
Flexible flat cable
W310 Fold line position to DIGITAL (1)
CB422 to OPERATION (2) 20 mm (CB82)
W307 W309 (CB343) (3/4") Bend to
CB302 CB304 CB305 Bend to back side
to chassis 37 mm
CB308 back side 2 mm
Contact side (1-1/2")
OPERATION (1) to OPERATION (2) Contact side
(1/8")
5 CB301
CB306 (CB343)
W301 to OPERATION (1)
to OPERATION (1) (CB303)
to DIGITAL (1) (CB306)
(CB82)
OPERATION (6) 180 mm (7-1/8")
CB303
to DIGITAL (1) from W310 to DIGITAL (1) (CB951)
to DIGITAL (1) (CB6) from W309 to DIGITAL (1) (CB941)
MAIN (1) (CB1)
RX-A760
(W106) OPERATION (7)
Front panel (View A) OPERATION (6) DIGITAL (2) OPERATION (12)
W4201 Flexible flat cable 60 mm (2-3/8")
6
CB302 Flexible flat cable
W309 Fold line position to DIGITAL (1)
CB422
W308 to OPERATION (2) 20 mm (CB82)
CB301 (CB343)
W304B
OPERATION (11) (3/4") Bend to
OPERATION (10) Bend to back side 37 mm
back side 2 mm
CB303 Contact side (1-1/2")
(1/8")
to OPERATION (2) Contact side
CB305
(CB343)
CB308 to OPERATION (1)
CB306 to OPERATION (1)
to DIGITAL (1) (CB304)
W304A OPERATION (1) CB304 (CB305)
(CB82)
140 mm (5-1/2")
7
OPERATION (5)
to DIGITAL (1) to DIGITAL (1) to DIGITAL (1) to DIGITAL (1)
(CB1) (CB6) (CB941) (CB951)
87
A B C D E F G H I J
RX-V681/RX-A760 • Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location
RX-V681 RX-A760 D15 F2 D22 G2 D31 H2 D4204 B6 IC1 I3 IC50 G4
1 ■ PRINTED CIRCUIT BOARDS D16 F2 D23 G2 D750 E6 D4205 B6 IC2 E3 IC53 F4
ETH_RX_M
ETH_RX_P
DGND
NCPU_ADT_MCKR
D17 F2 D25 G2 D751 E5 D9401 C5 IC4 F3 IC55 F3
ETH_TX_M DGND
DGND
ETH_TX_P
NCPU_SPI_SCK
NCPU_ADT_WCKR
NCPU_ADT_SDR0
NCPU_ADT_BCKR
D19 G2 D27 H2 D752 E5 D9402 D5 IC6 D5 IC76 E5
NCPU_SPI_MOSI
NCPU_SPI_N_CS
NCPU_SPI_MISO
DGND
DGND
NCPU_Z_AUP_MCKX Network Module D20 G2 D29 H2 D753 E5 D9502 B4 IC7 G3 IC78 E5
DGND NCPU_Z_AUP_BCKX
NCPU_N_RST NCPU_Z_AUP_WCKX
NCPU_MUTE1
NCPU_MUTE0
NCPU_RXD
DGND
NCPU_Z_AUP_SDX0
NCPU_AUP_MCKX
D21 G2 D30 H2 D754 F5 D9503 B4 IC9 E3 IC79 D5
DIGITAL (1) (Side A)
NCPU_TXD DGND
NCPU_N_INT
DGND
NCPU_AUP_WCKX
NCPU_AUP_BCKX
No replacement part available. IC11 H2 IC80 D4
NCPU_ADT_MUTE
DBG_UART_TXD
NCPU_AUP_SDX3
NCPU_AUP_SDX0
No replacement part available.
NCPU_VBUSDRV
NCPU_PHOLD
NCPU_AUP_SDX1
NCPU_AUP_SDX2 IC16 G3 IC81 D4
USB_VBUS DGND
USB_DM
USB_DM
AP_SCL
AP_SDA HDMI 5 HDMI 4 HDMI 3 HDMI 2 HDMI 1 IC17 H4 IC82 E5
NETWORK
USB_DP
USB_DP
+3.3VMMC
DBG_UART_RXD
HDCP 2.2 HDCP 2.2 HDCP 2.2 HDMI OUT
DGND
DGND
DGND
DGND HDCP 2.2 IC27 D3 IC84 E6
(NET) +5WLAN
+5WLAN
+5NET
+5NET
(BD/DVD) IC85 E6
2 RX-V681:
IC86 E4
CB953 CB4 CB5 CB7 CB8 CB9 CB11
OPERATION (4) (CB381) IC90 E4
RX-A760: IC94 D5
OPERATION (4) (CB381) IC423 B6
IC11
4 3 IC481 I5
5 1
64 49 108 55 RM- IC482 I4
1 48 109 54 RM+ IC483 I4
DGND
IC7
7 1
RX-V681: IC4 DGND IC484 I4
AV4_D
IC2
OPERATION (2) (CB344) 8 14
DGND IC485 I4
RX-A760: AV3_D
16 33 DGND IC486 I4
OPERATION (2) (CB344) 17 32 AV2_D
4 1
IC921 F5
CB945
+5DSP
3 1 4
2 3
IC1 IC923
2 1 AV1_D
IC922 I6
IC5 5 8 3 4 DC_TRG
TU_SDA 162 1 +5AE
TU_N_RST
TU_SCL IC55
4 3 163 216 +5A IC923 I3
TUN_N_INT
VID_SDA
VID_SCL 1
4 5 4
1 2 +3.3A IC925 G5
PS2_PRT
CB952
ID_PON 2 3
IC927 G5
IC27
CB76
VE
ADCVBS 1 3 1 5
CB1
IC929 H5
IC9
VE 3 4
ADY 11 10
IC16 10
+3.3V 11
IC952
VE
ADPb 27 1 IC931 F5
IC485
ADPr 20 1
MAIN (1)
IC53 20 1
IC932 G5
25 24 11 (CB154)
8 5
10
11
10 IC941 D5
IC17
8 5
IC943
IC954
IC942 H5
IC484
5
1 IC953
IC86 28 54 IC50 20 1 DASBL
3 4 1 4 1 14 AGND
1 4 20 1
DASBR IC943 D4
IC80
RX-V681: 10
7 8 AGND IC944 D4
4
11
OPERATION (1) (W310) VBUS 48 1
DASL
IC483
D-
RX-A760: D+ AGND IC947 H5
CB951
GND 20 1 DASR
OPERATION (12) (W309) FG
1 10
1 AGND IC951 C4
CB946
6
IC951
11 10
176 133 DAC
3 4 8 5
AGND IC952 C3
IC482
IC81 1 132
IC944
RX-V681: DASW
+5.6V
11 20 20 1
AGND IC953 C4
OPERATION (3) (W3703) 1 4
11
10
DAFL
+5.6V
AGND IC954 B4
IC90
CB942
RX-A760:
IC486
DGND 10
DAFR
OPERATION (3) (W3703)
1
Q1 H4
DGND 20 1
IC79 11
10
MAIN (1) Q5 F3
Q6 F3
IC481
11 20 44 89
8 5 88
(CB155)
RX-V681: +3.3M 45
DGND
IC6 20 1
Q11 D4
OPERATION (3) (W3704) NPL
ACPWR_DET 1 4 IC931 IC932
Q12 D4
CB944
RX-A760: AGND
5 MCPU_N_RST IC82
NPR
OPERATION (3) (W3704) PRY 8 5
16 9 AGND Q250 C3
CB948
IC94
TEST 4 3 16 9 4 1
6 4 5 1
IC78 ADL Q251 C3
AGND
DIGITAL (2) (Side A)
IC41 1 4 IC76 5 8
1 8 54 28 54 28
IC947
13
12 1
48
ADR Q252 C3
1 3 1 5 1 5
IC921
1 8
Q253 C3
IC927
3 4 3 4 IC942
No replacement part 24 37
ADTL Q254 D3
+1.2DH
CB943
+3.3HL
IC925 IC929 25 36
DGND
CB949
available. (for service) AGND
ADTR Q256 D3
1 27 1 27
21 Q450 F3
CB941
CB422 W4201
34
IC922 MAIN (1) Q451 F3
2 1 2 1
(W116)
CB6 3
4
IC85 3 4
IC84 CB79
Q760 E6
66 45 CB78 CB80
67 44
CB82
Q763 F6
6 IC423
Q9401 D5
88 23
Q9501 C4
+3.3HL
+1.2DH
DGND
AUDIO_DET
R_200_DET
SP_IMP
PS2_PRT
PS1_PRT
AMP_LMT
AMP_OLV
I_PRT
DC_PRT
VOL_SCK
MG
VOL_MOSI
HP_N_DET
SPRY_Z2
SPRY_SB
MUTE_HP
SPRY_5CH
MUTE_SW
MUTE_Z2
MUTE_5CH
MUTE_SB
THM3_PRT
MUTE_P_SB
THM1
+3.3DSP
DGND
FLD_N_RST
FLD_SCK
MIC_N_DET
RM-
ISEL_RA
PS2_PRT
PSW_DET
KY_AD2
VDL_RB
FLD_PON
STBY_LED
+5.6
DGND
1 22
+5USB
+5USB
GND
GND
FR_SDA
FR_SCL
FR_N_RST
TPWR
NC
NC
+5H
CEC
NC
NC
FR_N_INT
ShieldC
DataC-
DataC+
Shield0
Data0-
Data0+
Shield1
Data1-
Data1+
Shield2
Data2-
Data2+
DGND
CB421
MAIN (3)
FLD_N_CS
MIC_MOSI
FLP_PON
REM_IN1
ISEL_RB
VDL_RA
PD_LED
KY_AD1
RX-V681: MAIN (1) (W109) (W112)
MAIN (1) (W108)
DGND
DGND
+3.3M
HDMI IN OPERATION (1) (W309)
RM+
+5.6
VIDEO AUX
FR_N_RST
RX-A760:
FR_SDA
FR_SCL
FR_N_INT
SheildC
DataC+
Sheild0
Sheild1
Sheild2
Data0+
Data1+
Data2+
Data0-
Data1-
Data2-
TPWR
DataC
Sheild
OPERATION (12) (W308)
CEC
+5H
RX-V681:
NC
NC
NC
NC
7 OPERATION (1) (CB303)
RX-A760:
OPERATION (1) (CB304)
88
A B C D E F G H I J
RX-V681/RX-A760
RX-V681 RX-A760
1
DIGITAL (1) (Side B)
• Semiconductor Location
Ref no. Location
D1 F3
D100 E2 4
IC14
3
5 1
D801 F5
D9406 C5
D9407 C5
IC3 C3 64 49
1 48
3 IC14 E3
IC21
1
2
IC21 G3 3 4 IC3
16 33
IC45 C3 17 32
IC57 C4
IC77 F5
IC83 G5 1
5
IC45
IC88 G4 3 4
IC57
3 4
IC91 F5 2
1
IC92 F5
IC93 G5
IC924 E5
4 1 16 1 16
IC926 E5
IC946
IC945
IC928 C5 8 9 8 9
10 1
IC930 D5
IC88
IC945 C4 11 20
IC946 C4
IC948 C5
IC949
10 1
IC949 C5 3
4
2
1
IC83
Q13 E2
IC91
11 20
5 4
Q14 E2
8 5 1 1 3
Q15 D2 4 3
IC948 8 5 IC926
3 5 4
5 Q16 D2 1 2 1 3 IC93
IC92
IC930 4 5
IC77
4 1
1 4
Q18 D2 1 4 5 8
Q19
Q21
D2
F3 27 1 27 1
DIGITAL (2) (Side B)
Q255 G3 IC928 IC924
Q750 F5
Q751 F5 28 54 28 54
Q752 F5
Q753 F5
Q754 F5
Q755 F5
6
Q756 F6
Q757 F6
Q758 F6
Q759 F6
Q761 F6
Q765 F5
Q9201 F5
Q9202 F5
Q9403 H5
Q9405 H5
7 Q9406 H5
89
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (1) (Side A)
DIGITAL (1)
(CB82)
FLP_PON
FLD_N_RST
FLD_N_CS
FLD_SCK
FLD_MOSI
MIC_N_DET
REM_IN
RM-
RM+
Remote control sensor
DGND
DGND
PRV2
CB303
3 PSW_DET
DGND
KEY1
KEY2
VOL_RA
VOL_RB
PD_LED
FLD_PON
+3.3M
STBY_LED
+5.6
+5.6
DGND
DGND
TUNING AM FM PRESET MEMORY INFO ZONE CONTROL ZONE 2
N.C
OPERATION (2) -12V
CB306
E
4 (CB343)
+12V
MIC
+3.3M +12V
VOL_RA MIC
VOL_RB E
KEY2 -12V
CB304
CB302
PD_LED MIC_N_DET
+5.6 PSW_DET
DGND SCENE HD_LED
FG +3.3M
FG DGND
FG
OPERATION (5) W309
RADIO NET TV BD/DVD OPERATION (6)
5 (CB305) (CB301)
W310
CB307
GND
GND
VBus
VBus
DIGITAL (1)
(CB941)
STRAIGHT PROGRAM TONE INPUT
(Front USB) CONTROL
FG
GND
VBus
-Data
+Data
6
DIGITAL (1)
(CB951)
• Semiconductor Location
Ref no. Location
7 D3005 I3
Q3017 I3
90
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (1) (Side B)
41 40
3 IC302
2 1 60 21
3 4 IC301
61 20
80 1
• Semiconductor Location
Ref no. Location
D3008 I3
D3009 I3
D3010 I3
5
D3011 I3
D3012 H4
D3014 I4
D3015 I4
D3016 I4
D3017 I4
D3018 I4
D3023 H3
D3025 H3
IC301 E3
6 IC302 C3
Q3001 F3
Q3002 F3
Q3003 F3
Q3004 G3
Q3006 F3
Q3007 G3
Q3010 H4
Q3011 H5
Q3012 H4
7 Q3013 H4
Q3016 H3
91
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (2) (Side A)
AM/FM TUNER
TUN_N_INT
OPERATION (9) (Side A)
TUN_SDA
+3.3T
GND
VE
VE
VE
TUN_N_RST
TUN_SCL
AV4_V
AV3_V
VE
TUR
TUL
OPERATION (1)
NC
2 (CB306)
-12V
MIC
VAUXE
VIDEO
+12V
AV3 AV4
E
(TV)
OPERATION (3)
(W3705)
3 CB343
+5V
VE
CB347
-5V
+7A
+5AE
CB361
CB342
CB346
VE
AV3_V
AV4_V
TUN_SDA
VE
VE
VE
TUN_SCL
TUN_N_RST
4 TUN_N_INT
VID_SDA
VID_SCL
CB344
PS2_PRT
VID_PON
VE
AD_V
VE
AD_Y
+3.3V
AD_Pb
VE
AD_Pr
E
E
DIGITAL (1) E
(CB76) +12V
MIC
CB345
-12V
PS2_PRT
5 +5AE
+7A
TUR
TUE
TUL
OPERATION (4)
(CB383)
PR PB Y PR PB Y
COMPONENT COMPONENT
VIDEO VIDEO
VIDEO AV 6 AV 5 AV2/AV1
VIDEO
MONITOR OUT
7
92
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (2) (Side B)
OPERATION (9) (Side B)
IC346
3 1
4 5
3 1
IC344
3 5 4
4 5
IC342
1 3
40 39
52 27
IC341
1 26
13 14
• Semiconductor Location
Ref no. Location
IC341 E5
IC342 E3
IC344 D3
IC346 E3
7 Q3420 E5
93
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (3) (Side A) OPERATION (4) (Side A)
DIGITAL (1)
(CB945)
OPERATION (2)
2 (CB345) +3.3A
+5A
+5AE
AUXR DC_TRG
E AV1_D
AUXL +5DSP
+12V AV2_D
MIC DGND
IC372 IC373 AV3_D
-12V
PS2_PRT DGND
K R A +5AE MAIN (1) AV4_D
+7A (W110) DGND
TUR DGND
TUE RM+
TUL E RM-
+18V
3 5 k-ohms IC375
10 W
1 7
MAIN (1)
(CB153)
CB384
TUR
TUL
TUE
MIC
CB382
E
AUXR
AUXL
CB381
E
4
CB383
E
DIGITAL (1) +12V
(CB942) -12V
5.6V
W3703
5.6V
GND
GND
+5V
VE
W3705 -5V
+7A
+5AE
5 CB374
POWER OPERATION (2)
(CB347) OUT IN
W3707
5.6V
TRANSFORMER
GND
OPTICAL COAXIAL OPTICAL
CB371
IC374 MAIN (1) AV 1 AV 2 AV 3 AV 4 REMOTE TRIGGER
(CB102) OUT
W3704
TEST • Semiconductor Location
PRY
CPU_N_RST Ref no. Location
U, C, R, S, A, G, F, L, H models ACPWR_DET
DGND Safety measures D3701 C4
+3.3M • Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety D3704 E3
AC IN measures during servicing, such as wearing insulating gloves.
IC372 D3
• Note that the capacitors indicated below are dangerous even after the power is turned off because an
DIGITAL (1) electric charge remains and a high voltage continues to exist there. Before starting any repair work, IC373 E3
(CB944)
connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to IC374 D6
discharge electricity. The time required for discharging is about 30 seconds per each. IC375 C3
7 C3706 on OPERATION (3) P.C.B. Q3802 J4
94
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (3) (Side B) OPERATION (4) (Side B)
5 4
IC383
8 1
4 3
5
1
IC382
4
1 14
IC381
7 8
• Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location
D3702 D3 D3752 D4 Q3751 D5
D3703 C4 D3753 D5 Q3752 D5
D3705 D3 D3754 D5 Q3801 J4
D3706 B4 D3755 D4 Q3803 J4
6
D3707 D6 D3756 D5 Q3804 J4
D3708 D6 D3757 D4
D3709 D6 D3801 I5
R model
D3710 D6 D3802 I5
D3711 D6 IC381 H4
D3712 C6 IC382 H4
D3713 C6 IC383 H4
D3714 C6 Q3701 D5
D3715 C6 Q3702 D5
D3750 D4 Q3703 D6
7 D3751 D5 Q3750 E5
95
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (5) (Side A) OPERATION (6) (Side A)
OPERATION (1)
(CB304)
VOL_RA
VOL_RB
PD_LED
DGND
+3.3M
KEY2
+5.6
FG
FG
2
CB305
PURE DIRECT PURE
indicator DIRECT
VOLUME
3
YPAO Standby
MIC indicator
MAIN ZONE
W301
CB301
FG
DGND
+3.3M
HD_LED
PSW_DET
MIC_N_DET
-12V
E
MIC
+12V
to chassis
4 OPERATION (1)
(CB302)
PHONES
OPERATION (7) (Side A) SILENT CINEMA OPERATION (8) (Side A)
MAIN (1)
(W105)
EX_RE
EX_LE
EX_R
EX_L
5
CB391
to chassis
W307
6 HPR
CB308
HPE
HPL
HP_N_DET
MAIN (1) +/- +/-
(W106)
L R
F.PRESENCE/ZONE2
EXTRA SP1 • Semiconductor Location
SPEAKERS Ref no. Location
D3004 H3
7 D3013 C3
96
A B C D E F G H I J
RX-V681/RX-A760
RX-V681
1
OPERATION (5) (Side B) OPERATION (6) (Side B)
1 8
IC303
4 5
OPERATION (7) (Side B) OPERATION (8) (Side B)
• Semiconductor Location
Ref no. Location
D3001 H3
D3002 H3
D3003 H2
D3019 D5
D3020 D5
IC303 H3
Q3005 I3
7
Q3014 C3
97
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (10)
(W304B)
OPERATION (1) (Side A)
ISEL_RB
DGND
ISEL_RA
DIGITAL (1) +3.3M
2 (CB82)
FLP_PON
FLD_N_RST
FLD_N_CS
FLD_SCK
FLD_MOSI
MIC_N_DET
REM_IN
RM-
RM+ PURE DIRECT
ISEL_RA
ISEL_RB indicator
PRV2 Remote control
CB304
DGND sensor
PSW_DET
W304A
KEY1
KEY2
VOL_RA
VOL_RB
PD_LED
FLD_PON
+3.3M
STBY_LED
+5.6 MASW
+5.6
DGND DGND
CB306
3 DGND DGND
+3.3M
PURE DIRECT STBY_LED
NC TUNING AM FM PRESET MEMORY INFO ZONE CONTROL ZONE 2 OPERATION (5)
CB305
OPERATION (2) -12V (CB308)
E
MIC
(CB343) +12V
CB303
+12V
MIC
E
-12V
MIC_N_DET
FG
4 RADIO NET TV BD/DVD
SCENE
OPERATION (6)
VOLUME (CB301)
TONE
STRAIGHT PROGRAM CONTROL
OPERATION (11) (Side A)
OPERATION (12) (Side A)
DIGITAL (1)
(CB941)
VBus
VBus
GND
GND
W308
W309
6
FG
GND
+Data
-Data
VBus
CB310
DIGITAL (1)
(CB951)
(Front USB)
• Semiconductor Location
Ref no. Location
D3011 D3
D3012 C3
7
Q3008 C2
98
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (1) (Side B)
41 40
60 21
IC301
61 20
4 3
80 1
1 2
IC302
3
• Semiconductor Location
Ref no. Location
D3009 D3
D3010 D3
5
D3015 D3
D3019 D3
OPERATION (11) (Side B) D3020 D3
D3021 D3
OPERATION (12) (Side B) D3022 D3
D3025 C3
D3026 C2
D3027 C2
IC301 F3
IC302 D3
6 Q3001 G2
Q3002 G2
Q3003 G2
Q3004 H2
Q3005 G2
Q3007 C2
Q3009 C3
Q3010 D3
Q3011 D3
Q3012 D2
Q3013 D2
7
Q3015 H2
99
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
AM/FM TUNER
TUN_N_INT
OPERATION (2) (Side A) OPERATION (9) (Side A)
TUN_SDA
+3.3T
GND
VE
VE
VE
TUN_N_RST
TUN_SCL
AV4_V
AV3_V
VE
TUR
TUL
OPERATION (1)
NC
2 (CB305)
-12V
MIC
+12V
NC
VIDEO
E
AV3 AV4
(TV)
OPERATION (3)
(W3705)
3
+5V
VE CB343
CB347
-5V
+7A
+5AE
CB342 CB361
CB346
VE
AV3_V
AV4_V
TUN_SDA
TUN_SCL
TUN_N_RST
VE
VE
VE
TUN_N_INT
4 VID_SDA
VID_SCL
CB344
PS2_PRT
VID_PON
VE
AD_V
VE
AD_Y
+3.3V
AD_Pb
VE
AD_Pr
E
E
DIGITAL (1) E
(CB76) +12V
MIC
CB345
-12V
PS2_PRT
+5AE
5 +7A
TUR
TUE
TUL
OPERATION (4)
(CB383)
PR PB Y PR PB Y
COMPONENT COMPONENT
VIDEO VIDEO
VIDEO AV 6 AV 5 AV2/AV1
VIDEO
MONITOR OUT • Semiconductor Location
7 Ref no. Location
Q3413 D3
100
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (2) (Side B) OPERATION (9) (Side B)
3 1
IC346
4 5
3 1
5 4
3 IC342
IC344 4 5
1
3
40 39
52 27
IC341
1 26
13 14
• Semiconductor Location
Ref no. Location
IC341 E4
IC342 E3
IC344 D3
7 IC346 D3
Q3420 D5
101
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (3) (Side A) OPERATION (4) (Side A)
DIGITAL (1)
(CB945)
OPERATION (2)
2 (CB345) +3.3A
+5A
+5AE
AUXR DC_TRG
E AV1_D
AUXL +5DSP
+12V AV2_D
MIC DGND
-12V AV3_D
IC373 PS2_PRT DGND
IC372
+5AE MAIN (1) AV4_D
+7A (W110) DGND
K R A TUR DGND
TUE RM+
TUL E RM-
+18V
3
5 k-ohms IC375
10 W
1 7
MAIN (1)
(CB153)
CB384
TUR
TUL
TUE
MIC
CB382
E
AUXR
AUXL
CB381
E
4
CB383
E
+12V
-12V
DIGITAL (1)
(CB942)
5.6V
W3703
5.6V
GND
GND
CB373
+5V
VE
W3705
5 -5V
+7A
+5AE
CB374 OUT IN
CB372
POWER OPERATION (2) OPTICAL COAXIAL OPTICAL
(CB347)
W3707
TRANSFORMER 5.6V
GND
AV 1 AV 2 AV 3 AV 4 REMOTE TRIGGER
OUT
IC374 MAIN (1)
(CB102)
W3704
• Semiconductor Location
Ref no. Location
TEST Safety measures D3701 B4
AC IN PRY • Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety
CPU_N_RST D3704 D3
ACPWR_DET measures during servicing, such as wearing insulating gloves.
IC372 D3
DGND • Note that the capacitors indicated below are dangerous even after the power is turned off because an
+3.3M
electric charge remains and a high voltage continues to exist there. Before starting any repair work, IC373 E3
connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to IC374 D6
DIGITAL (1) discharge electricity. The time required for discharging is about 30 seconds per each. IC375 C3
7 C3706 on OPERATION (3) P.C.B.
(CB944) Q3802 J4
102
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (3) (Side B) OPERATION (4) (Side B)
5 4
IC383
8 1
4 3
5
1
IC382
4
1 14
IC381
7 8
• Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location
6 D3702 C3 D3715 C6 IC382 H4
D3703 C4 D3750 D5 IC383 H3
D3705 D3 D3751 D5 Q3701 D6
D3706 B4 D3752 D5 Q3702 D6
D3707 D6 D3753 D5 Q3703 D6
D3708 D6 D3754 D5 Q3750 D5
D3709 D6 D3755 D5 Q3751 D5
D3710 D6 D3756 D5 Q3752 D5
D3711 D6 D3757 D4 Q3801 J4
D3712 C6 D3801 I5 Q3803 J4
7 D3713 C6 D3802 I5 Q3804 J4
D3714 C6 IC381 H4
103
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (5) (Side A) OPERATION (6) (Side A) OPERATION (7) (Side A)
PHONES
SILENT CINEMA
YPAO
Standby indicator MIC
FG
MIC_N_DET
CB301
-12V
MAIN ZONE E
MIC
CB308 +12V
MASW
DGND
DGND
+3.3M
STBY_LED
3 OPERATION (1)
(CB303)
OPERATION (1)
(CB306)
CB302
OPERATION (8) (Side A)
HPR
HPE
HPL
HP_N_DET
SPEAKERS
EXTRA SP1 MAIN (1)
(W106)
4 F.PRESENCE/ZONE2
R L
+/- +/-
OPERATION (10) (Side A)
OPERATION (1)
(W304A)
ISEL_RB
ISEL_RA
5
DGND
+3.3M
W304B
INPUT
6
CB391
EX_R
EX_L
EX_RE
EX_LE
MAIN (1)
(W105)
• Semiconductor Location
7 Ref no. Location
D3016 C2
104
A B C D E F G H I J
RX-V681/RX-A760
RX-A760
1
OPERATION (5) (Side B) OPERATION (6) (Side B) OPERATION (7) (Side B)
5 4
IC303
3 8 1
OPERATION (8) (Side B)
OPERATION (10) (Side B)
• Semiconductor Location
Ref no. Location
D3001 F2
D3002 I2
D3003 F2
D3004 I2
D3006 F3
IC303 F3
7
Q3014 C2
105
A B C D E F G H I J
RX-V681/RX-A760
RX-V681 RX-A760
1
DIGITAL (1) ADTL RX-V681: SPEAKERS
AGND
(CB949) ADTR OPERATION (4) (CB384) EXTRA SP2
RX-A760: SURROUND CENTER FRONT SURROUND BACK
MAIN (1) (Side A) OPERATION (4) (CB384) ZONE2/BI-AMP
+12V
R L R L R L
E
RX-V681:
OPERATION (7) (CB308) +/- +/- +/- +/- +/- +/- +/-
PHONO AUDIO1 AUDIO2 AV5 AV6 ZONE OUT RX-A760: PRE OUT
ZONE 2 SUBWOOFER
OPERATION (7) (CB302)
L/R L/R L/R L/R L/R L/R HPR
1/2
E
HPL
HP_N_DET
2
EX_LE
EX_RE
EX_L
EX_R
RX-V681:
RX-V681:
OPERATION (4) (CB382)
RX-A760: W102B
OPERATION (8) (CB391)
BL
RX-A760:
OPERATION (4) (CB382)
OPERATION (8) (CB391)
W116
-12V W110
+12V
E W103B
AUXE
AUXL
CB153
W104B
AUXR
MICE
3 MIC
TUE W105
TUL
TUR IN
RX-V681:
COM
OUT GND OPERATION (3) (W3707)
CB102
IC103
5.5V
W106
RX-A760:
CB103
CB101
IC104
COM OPERATION (3) (W3707)
IN
OUT AC12
W102A
BL E POWER
DASBL AC12 TRANSFORMER
AGND
DASBR
AGND
DASL
DIGITAL (1) AGND
DASR
CB154
(CB946) AGND
DAC
4 AGND
DASW
E
E
AC_BL
AC_BL
AC_BH
AC_BH
AGND
DAFL
AGND
DAFR
POWER
TRANSFORMER
W101C BE RE W101A
W108
NPL
MUTE_P_SB
THM3_PRT
MUTE_SB
MUTE_5CH
MUTE_Z2
MUTE_SW
SPRY_5CH
MUTE_N_HP
SPRY_SB
SPRY_Z2
HP_N_DET
NPE
NPR
CB155
AGND W109
ADL
AGND 5 k-ohms
ADR
10 W DIGITAL (1)
DIGITAL (1) (CB80)
(CB948)
5
VOL_MOSI
MG
VOL_SCK
DC_PRT
I_PRT
AMP_OLV
AMP_LMT
PS1_PRT
PS2_PRT
SP_IMP
R_200_DET
AUDIO_DET
W103A
W104A
5 k-ohms
10 W
DIGITAL (1)
(CB78)
• Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location Ref no. Location
W101B
D1040 H4 Q1027 C6 Q1042 B6 Q1053C E6
RE D1051 F3 Q1028 B6 Q1043 G6 Q1054A C6
W101D IC103 F3 Q1029 G5 Q1044 F6 Q1054C D6
6
BE
IC104 F3 Q1030 G5 Q1045 E6 Q1055A C6
Q1015 E5 Q1031 F5 Q1046 D6 Q1055C C6
Q1016 D5 Q1032 E5 Q1047 C6 Q1056A B6
Q1017 D5 Q1033 D5 Q1048 C6 Q1056C B6
Q1018 C5 Q1034 C5 Q1049 C6 Q1067 G5
Q1019 C5 Q1035 B5 Q1050A G6 Q1068 G5
Q1020 B5 Q1036 G6 Q1050C G6 Q1069 G5
Safety measures Q1021 B5 Q1037 G6 Q1051A F6 Q1070 G5
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves. Q1022 G6 Q1038 F6 Q1051C F6 Q1071 G5
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist
Q1023 F6 Q1039 E6 Q1052A E6 Q1072 B5
there. Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity.
7 The time required for discharging is about 30 seconds per each. Q1024 E6 Q1040 D6 Q1052C F6 Q1532 C4
C1084, C1085 on MAIN (1) P.C.B. Q1025 E6 Q1041 C6 Q1053A D6 Q1533 C4
Q1026 D6
106
A B C D E F G H I J
RX-V681/RX-A760
RX-V681 RX-A760
1 • Semiconductor Location
Ref no. Location Ref no. Location
D1001 D5 IC154 F3
MAIN (1) (Side B) D1002 D5 IC156 C2
D1003 H5 IC157 C3
D1004 H5 IC158 E3
D1005 G5 IC159 F4
D1006 G5 IC161 E3
D1007 F5 Q1001 E4
D1008 F5 Q1002 E4
R, S, V models D1009 E5 Q1003 E4
2
D1010 E5 Q1004 E4
D1011 D5 Q1005 D4
D1012 E6 Q1006 D5
D1013 D5 Q1007 D4
4 1
D1014 D5 Q1008 D5
IC156
5 8
D1015 C5 Q1009 C4
4 1
D1016 C5 Q1010 C5
41 40
D1017 H6 Q1011 C4
IC154
4 1
5 8 D1018 G6 Q1012 C5
60 21
IC161 D1019 F5 Q1013 C4
3 IC157 5 8
61 20
D1020 E6 Q1014 C5
D1021 D6 Q1051 D6
80 1
14 8
8 5
D1022 D6 Q1057 G6
IC158 D1023 C6 Q1058 G6
1 4
1 7 IC105
D1024 G5 Q1059 F6
D1025 G5 Q1060 E6
D1026 F5 Q1061 D6
D1027 E5 Q1062 C6
IC159
D1028 D6 Q1063 B6
D1029 C5
8 5
1 4
Q1064 F5
D1030 B6 Q1065 F5
4 BRIDGE DIODE
TEMPERATURE D1031 E5 Q1073 I4
D1032 D5 Q1075 F3
D1033 D5 Q1076 I3
D1034 F5 Q1077 H3
D1035 G5 Q1078 G3
D1036 G5 Q1079 G3
D1037 G5 Q1500 D3
D1038 H5 Q1503 D3
D1039 H5 Q1504 D3
D1041 H5 Q1507 F3
5 D1042 B5 Q1509 F2
D1043 F4 Q1511 D2
D1045 F3 Q1512 D3
D1046 I3 Q1513 D2
D1047 H3 Q1514 D3
D1048 G3 Q1519 E3
D1049 H3 Q1522 D3
D1050 I4 Q1524 E4
D1052 B6 Q1525 E4
D1053 C6
6 D1054 D6
D1055 E6
D1056 F6
D1057 G6
D1058 H6
D1501 C4
D1502 C4
D1505 F4
D1506 F4
D1507 F4
D1508 F4
7 IC105 F3
107
A B C D E F G H I J
RX-V681/RX-A760
RX-V681 RX-A760
1
MAIN (2) (Side A) MAIN (3) (Side A) MAIN (4) (Side A)
R, S, V models
POWER
TRANSFORMER VOLTAGE
SELECTOR
2
110–120V 220–240V
OR
RE
YE
VI
CB111
W112
3
THM1_PRT
+3.3S
DGND
DIGITAL (1)
(CB79)
5
MAIN (5) (Side A) MAIN (6) (Side A)
108
A B C D E F G H I J
RX-V681/RX-A760
RX-V681 RX-A760
1
MAIN (2) (Side B) MAIN (3) (Side B) MAIN (4) (Side B)
R, S, V models
HEATSINK
TEMPERATURE
5
MAIN (5) (Side B) MAIN (6) (Side B)
109
RX-V681/RX-A760
■ PIN CONNECTION DIAGRAMS • ICs
• ICs TC7WH126FU TC7WH32FK TL431AC TMPM462F15FG
132 89
A3V56S40GTP-60 ADV7180BSTZ BD00GA3WEFJ-E2 BD34703KS2 BD7541G-TR
BD9328FJ 133 88
A3V28S40JTP-60 60 41
4
BD9329AEFJ-E2
61 40 5
3 8 8 4
54 48 33 4
28 1 1: CATHODE
1 1 1 2: ANODE
49 32 23
3: REF
5 BD88400FJ
8
4 TLP781 W25Q32FVSSIG
8
64 17
1 27 1 7 3
80 21 5
1 16 14
1 20 1 4
8 4 176 45
2
EN29LV640AB-90TIP KIA7912PI M95512-RDW6TP/K ML9286-03GAZ0ARL MN864787 1 1 1 44
5 162 109
60 41
1 48 8
163 108
• Diodes
4 61 40
1 1SS355VM DA2JF2300L DBL155G RB162L-40 RB500V-40
Anode + Anode RB501V-40
Anode – Anode
MFI337S3959 RB521S-30
24 25 GND
OUT 5
IN 8 AC
Cathode Cathode AC Cathode Cathode
80 21
4 216 55 RBQ30T65A RF081M2STR RS103 RS603M SARS05 TFZGTR13B UDZV2.4B UDZV5.6B
1 1 20
1 54 TFZGTR24B UDZV3.6B UDZV7.5B
Anode UDZV3.9B UDZV24B
NJM072CG NJM7812FA NJW1329FH3 PCM5101APWR PCM9211PTR R1EX25512ATA Anode UDZV4.3B UDZV39B
NJM2068MD-TE2 PCM5102APWR 36 25
NJM4565M (TE1) 37 24 5 Anode UDZV5.1B
39 27 Anode
11
5 –
40 26 1 2 3 Cathode – Cathode
8 AC
4 1: Anode AC AC
10 1 AC
8 4 1 2
2: Cathode + +
20 3 3: Anode Cathode Cathode
1 13
48
1 1 12
NJM8065G R3116N271A-TR-F
3: IN
52 14
• Transistors
5 1: OUT
2: COM R1163N501B-TR-FE R1173S001B-E2-F 4
1 13
5 2N5401C-AT 2N5551C-AT 2SA1576UBTLR 2SA1145 2SA1708 S,T 2SA1770 S,T 2SC2229
4 3
8 4 4 2SC4488 S,T
1 5 1
3 6
3
1
1
C
R5527K001D-TR RP109L121D-TR RP115H121D-T1-FE SII9589-3CTUC SII9587CNUC-3 E
RP109L181D-TR RP115H131D-T1-FE 67 66 B
3 4 B E
3 RP109L251D-TR R1172H501D-T1-F 75 51 E C C E
4 88 E B C
RP170H331B-T1-FE 45 C B B B
B CE CE
2 4 3 3 4
1 1 76 50 1 44
2 1 2SC2713 GR 2SC4115S 2SC4614 S,T 2SC5964-TD-E 2SD2704 K A1695/C4468 DTA044EUBTL
3
22 23 2SC4081 T106 DTC014EUBTL
5 66 45
1 2 2 1 4 C DTC023JUBTL
67 44 DTC044EUBTL
E B
RP130K331D-TR RP130Q331D-TR-F SN74LV4051APWR C
E
RP130K501D-TR B C
9 3
4 3 3 4 3 2SCR542P E
100 26 2SC4081UBTLR 1: IN
4 B 2 2: GND
2 8 88 23 BC
16 E 1 3: OUT
1 22 C
1 1 25 E
CB
1 E E B
1 2 2 1 C C
B B E
STR-Y6753 SN74LVC1G17DCKR TC74LCX32FT TC74VHC157FT TC74VHCU04FT TC7SET08FU
TC7SH08FU HN4B01JE INA6002AC1-TH12-1W KTA1046-Y-U/PFY KTA1024Y-AT/P KTA1504S Y GR RTK RAL035P01
4
5 TC7SH86FU INC6002AC1-T112-1W KTA1837-U/P KTC3206Y-AT KTC3875S
3 4
8 9 8 4
1 5
6
4 3
TC74LCX245FT 7 5 1 C 3
TC74VHC273FT (EL,K) 7 8 14 3 1
14 16
C E
11 1. BASE 1 (B1) 1. DRAIN
1 1 1 1
2. EMITTER (E) B 2. DRAIN
3. BASE 2 (B2) E 3. GATE
1 10 4. COLLECTOR 2 (C2)
7 20 B BC 4. SOURCE
5. COLLECTOR 1 (G2) E 5. DRAIN
BC
E 6. DRAIN
1
110
A B C D E F G H I J K L M N
RX-V681/RX-A760
RX-V681 RX-A760
■ SCHEMATIC DIAGRAMS
1
DIGITAL 1/7
to DIGITAL(2) Page 112 K8
002.sht
(Front HDMI) to DIGITAL (2)_CB422
HDMI 5 HDMI 4 HDMI 3 HDMI 2 HDMI 1 HDMI OUT
DGND
WY78680
A860 only (BD/DVD) V781/A860 Only
CB1 502231-2400
HDMI IN-7 HDMI IN-6 HDMI IN-5 HDMI IN-4 HDMI IN-3 HDMI IN-2 HDMI IN-1 +3.3HRT HDMI OUT1 HDMI OUT2
CB2 CB3 CB4 CB5 CB7 CB8 CB9 CB11 CB12
ZD53430 ZD53430 DC1RS19JAXR190 ZD53430 DC1RS19JAXR190 ZD53430 DC1RS19JAXR190 ZD53430 DC1RS19JAXR190 ZD53430 DC1RS19JAXR190 ZD53430 DC1RS19JAXR190 ZD53430 ZD53430
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
no_use
D32
DGND
Data2+
Data2-
EXC24CG900U Shield2
Data1+
NC
NC
Data1-
EXC24CG900U Shield1
Data0+
Data0-
EXC24CG900U Shield0
DataC+
DataC-
EXC24CG900U ShieldC
FR_N_INT
NC
CEC
+5H
NC
TPWR
FR_N_RST
FR_SCL
FR_SDA
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG FG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 FG
2
3
5
6
5
6
9
FG FG FG FG FG FG
(0.5%) DGND
BLM18KG221SN1D
no_use
C187 R29
DGND
R63
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
SCL
GND
Utility
SDA
GND
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
HPD
+5VPower
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
Data0-
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
HPD
GND
+5VPower
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
+5VPower
HPD
Data2+
Shield2
Data2-
Data1+
Shield1
Data1-
Data0+
Shield0
Data0-
DataC+
ShieldC
DataC-
CEC
Utility
SCL
SDA
GND
+5VPower
HPD
R192
DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND
51 4.7
4
3
4
3
4
3
4
3
22P(CH) 1/25 +3.3HRT
DGND
R25
R30
C188 R62
0
R220
L1
L2
L3
L4
C136 51
1/25
L54
C146 14
4.7K V+
DGND DGND 22P(CH) J16 J14 0.1/10(BJ) R219 TP55
1 2 3 4 R222
1
2
1
2
1
2
1
2
0
22P(CH)
no_use
no_use
DGND 0 C174 680 33
C173
R215
C122
TP54
C175
1/25
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
1608
BKP1005HS680-T
V- 7
10P(CH)
R221
22
+3.3HSW 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1
C19
2
BLM18PG221SN1D DGND DGND 18K
D17
D21
D25
R65
R5
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
L6
L55 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 DGND
no_use IC4
ESD7004MUTAG
ESD7004MUTAG
ESD7004MUTAG
DGND 5 6 9 8
R66 6 7 8 9 6 7 8 9 6 7 8 9 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1
D16
D15
D19
D20
D22
D23
13 12 11 10 DGND
(1608)
(1608)
(1608)
(1608)
(1608)
(1608)
(1608)
no_use
R111
R138
R157
100P(CH)
TC74VHCU04FT(EL
R20
R57
R74
R92
D27
D29
D30
D33
D34
D35
R70 22
22
22
22
R107 22
R108 22
R132 22
R134 22
R152 22
R154 22
+5HT1 +5HT2
10
10
10
10
10
R78 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 +5.6V +5.6V
C21
FHDMI_N_INT
DV_SCL
TMDS
TMDS
TMDS
no_use
R51
R53
R71
R86
R88
6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9
R14
R15
95
R79
ECO/ECO
ECO/ECO
BKP1005HS680-T
R140
R114
R161
DV_SDA
R118
R146
R170
no_use L31 L37
R1163N501B-TR-F
D31 D36
1K
1K
1K
DGND
10K
10K
10K
VOUT
VOUT
R109
R136
R155
R184
R193
R16
R54
R72
R89
TP41 TP45 TP50
47K
47K
47K
47K
47K
47K
47K
R187 33
68
68
RB501V-40
YD987A0
YD987A0
R113
R141
R162
R117 R145 R168 5 4 5 4
10/10
10/10
100K
100K
C171
100K
C163
C159
R197
C170
+5HSW
BKP1005HS680-T
EXC24CH900U
EXC24CH900U
EXC24CH900U
EXC24CH900U
R6
R7
IC11 IC12
4
3
4
3
3
33
+5HSW 1K 1K 1K
Q14 Q16 Q19 1 2 3 1 2 3
100
100
100
105
105
R156
R110
R137
L25
L26
L27
L28
R190 R199
100
105
C4081UBTLR C4081UBTLR C4081UBTLR
R17
R55
R73
R90
L33
L34
L35
L36
L5
VDD
GND
CE
VDD
GND
CE
47K
47K
47K
47K
47K
47K
47K
0.1/10(BJ)
R58
R21
R75
R94
V+ DGND DGND DGND 1.8K
R185
R194
R191 R200
0
5
C15
R188 22
100P(CH)
1.8K
1
2
1
2
2
3 use use
No replacement
R198
C29
V-
R189
DGND
22
DGND
47
V681 Only
R196
R3PWR5V
R2PWR5V
R1PWR5V
R05VPWR
R231
part available.
TC7SET08FU
DGND
DGND
DSCL3
DSDA3
DSCL2
DSDA2
DSCL1
DSDA1
DSCL0
DSDA0
22K
DTC014EUBTL DTC014EUBTL DTC014EUBTL
HPD3
HPD2
HPD1
HPD0
HDIN_HPD2
DGND 10K
HDIN_HPD3
HDIN_HPD1
R186
1
2
Q13 Q15 Q18
DGND
IC9
R232 22K
+5V_PON
DGND DGND DGND
+5V_PON
RX1SCL
RX1SDA
RX1P5V
RX2SCL
RX2SDA
RX2P5V
RX3SCL
RX3SDA
RX3P5V
TX0SCL
TX0SDA
TX1SCL
TX1SDA
AVRL161A1R1NTB
4
TX0HPD
TX1HPD
10K R195
DGND
C153 D1
100P(CH)
100
100
3
+1.2DH
DGND BLM18KG221SN1D +3.3HRT
0.1/10(BJ) 0.1/10(BJ)
0.1/10(BJ) 0.1/10(BJ)
0.1/10(BJ) 0.1/10(BJ)
BLM18KG221SN1D Q26
+1.2DH
IC11, 12 : R1163N501B-TR-FE
L7
0.1/10(BJ)
0.1/10(BJ)
0.1/10(BJ)
1000P(B)
L15
no_use
3 D6
no_use
1000P(B)
22/6.3
C67
C60
C63
C65
C71
C75
C78
no_use
no_use
no_use
22/6.3
5 2
CMOS-based manual mode switching LDO regulator
AVDD12
C34
C30
C31
C32
C33
C35
C39
R3X2P
R3X2N
R3X1P
R3X1N
R3X0P
R3X0N
R3XCP
R3XCN
VDD33
R2X2P
R2X2N
R2X1P
R2X1N
R2X0P
R2X0N
R2XCP
R2XCN
VDD12
R1X2P
R1X2N
R1X1P
R1X1N
R1X0P
R1X0N
+3.3HRT G G
DGND
DGND
+3.3HSW
S4 S
DGND
1
BLM18PG221SN1D
ECO
BLM15PD300SN1D
J202
1000P(B)
L16 1000P(B)
no_use
no_use
no_use
no_use
AVDD12 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 1 R21 X C P3 9 8 7 6 4 5
DGND
0
Data2+
Data2-
Data1+
Data1-
Data0+
Data0-
DataC+
DataC-
22/6.3
R104
R103
26
C61
C66
C68
C64
C72
C76
C79
R4PWR5V 100
no_use
VDD33 R1XCN C100
L52
L18
4
27 99
DGND
R4XCN
28 98
VDD33
I2C add:0xB0 C101
R4XCP AVDD12
29 97 22/6.3 RB500V-40
R4X0N R0X2P
VDD 1 5 VOUT
30 96 C128
R4X0P R0X2N DGND D100
31 95 22/6.3
R4X1N R0X1P
R4X1P
32 94
R0X1N YD940A0
33 93 DGND
R4X2N R0X0P J201
34 92
IC2
CEC
R4X2P R0X0N
0
0.1/10
35 91
C181
R228
47K
VDD12 R0XCP
36 90
DSDA0 DSDA0
37 SII9589-3CTUC 89
R0XCN
+3.3HPLL Vref
+1.2DH
DSCL0 DSCL0 TPVDD12 BLM18PG221SN1D
R9
0.1/10(BJ)
BLM15PD600SN1D
38 101 88 DGND DGND
HPD0 CBUS_HPD0 TCVDD12 L13 DGND
5.1K
Current Limit
10/10
C73
39 87
L23
C69
C36 DGND DGND
DGND
R05VPWR R0PWR5V TXCN
CE 3 2 GND
40 86
0.1/10
0.1/10
DGND
1/25 DSDA1 DSDA1 TXCP
Reverse Detector
C182
C183
4.7/6.3
R106
47K
47K
47K
R229
R230
41 85
No replacement part available.
DSCL1 DSCL1 TX0N
R10 42 84 C119
+1.2DH
HPD1 CBUS_HPD1 TX0P BLM18PG221SN1D 0.1/10
5.1K
0.1/10(BJ)
43 83
4
C37 L14
DGND
R1PWR5V R1PWR5V TX1N C120
10/10
C74
44 82
C70
1/25 DSDA3 DSDA3 TX1P
45 81 Pin No. Symbol Description
DGND
DSCL3 DSCL3 TX2N
R11 46 80 5V :9mA
R153 HBCK/DSDCK_P
HMCK_P
R124 SPDIF/DSD_FR_P
HPD3 CBUS_HPD3 TX2P 1 VDD Input Pin
HWCK/DSD_RL_P
47X4 SD0/DSD_FL_P
R163 SD1/DSD_FC_P
SD2/DSD_LFE_P
SD3/DSD_RR_P
5.1K
3.3V:260mA
RX0P5V
RX1P5V
RX2P5V
RX3P5V
HRX_N_INT
HTX_N_INT
47 79
C38
DGND
R3PWR5V R3PWR5V ARC
48 78
1.2V:736mA 2 GND Ground Pin
C151 BLM15PD300SN1D
BLM15PD300SN1D
BLM15PD300SN1D
BLM15PD300SN1D
+3.3HSW
no_use DSDA4 VDD12
R12 47K 49 77
3 CE Chip Enable Pin ("H" Active)
HTX1_VS
HTX1_C[9]
HTX1_C[8]
HTX1_DE
HTX1_HS
HTX1_C[7]
HTX1_C[6]
DSCL4 RSVDL
R150 47K
R151 47K
R13 47K 50 76
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 4 ECO MODE Alternative Pin
R59
Data2+
Data2-
Data1+
Data1-
Data0+
Data0-
DataC+
DataC-
R169
0.1/10
0.1/10
0.1/10
0.1/10
0
0.1/10
0.1/10
LPSBV
R120
L47
L48
L49
L50
CBUS_HPD4
R4PWR5V
DSDA2
DSCL2
CBUS_HPD2
R2PWR5V
DSDA5
DSCL5
R5PWR5V
SBVCC5
PWRMUX_OUT
WKUP
CD_SENSE0
CD_SENSE1
CD_SENSE2
CD_SENSE3
CD_SENSE4
GPIO0
TPWR_CI2CA
RESET#
CSDA
CSCL
INT
SPDIF_IN
VOUT Output Pin
R166
R119
5
C131
C134
C186
C155
47
47
0
0
DGND
0.1/10 0.1/10
C156
47
47
C106 C107
R31 47K
R34 47K
R4PWR5V
R2PWR5V
R52 100
22
22
R40
R43
0X4
5.1K
4.7K
R35
R56
DSDA2
DSCL2
0
HPD2
RX1P5V 108
RX2P5V 107
RX3P5V 106
VDD33 105
HSDA1 104
HSCL1 103
NIRQ0 102
CH0ALRCLK 101
CH0ASD0 100
R48
R49
CH0ASD1 99
CH0ASD2 98
CH0ASD3 97
NIRQ1 96
VDD11 95
VSS 94
P2RX2P 93
P2RX2M 92
AVDD11RX2 91
P2RX1P 90
P2RX1M 89
AVDD11RX2 88
P2RX0P 87
P2RX0M 86
AVDD11RX2 85
P2RXCP 84
P2RXCM 83
AVDD33RX2 82
VSS 81
P3RX2P 80
P3RX2M 79
AVDD11RX3 78
P3RX1P 77
P3RX1M 76
AVDD11RX3 75
P3RX0P 74
P3RX0M 73
AVDD11RX3 72
P3RXCP 71
P3RXCM 70
AVDD33RX3 69
VSS 68
PVDD33 67
VDD11 66
CH0ABCLK 65
CH0AMCLK 64
CH0ASPDIF 63
VDD33 62
DEIN 61
HSYNCIN 60
VSYNCIN 59
D23 58
D22 57
D21 56
D20 55
R47
+3.3HSW
C50 22K DGND
DGND
+3.3HSW
C45 IC14 HDMI_AUD_RTN
0.1/10(BJ) R44
C51 TC7SET08FU
RX0P5V 109 RX0P5V D19 54 HTX1_C[5] AUP_BCK
0.1/10(BJ) 10K 2 AUP_BCK
no_use
C46 10/10 4 RX3SDA 110 RX3SDA D18 53 HTX1_C[4]
DGND
R45 1
5.1K
1/25
5.1K
R18
R26
AUP_WCK
C41
C43
C52
10/10 no_use AUP_WCK
(1608)
+5HSW RX3SCL 111 RX3SCL D17 52 HTX1_C[3]
R36
0.1/10(BJ)
BKP1005HS680-T
AUP_SDO
10
C53 RX2SDA 112 RX2SDA D16 51 HTX1_C[2] AUP_SDO
DGND
0.1/10(BJ)
10/10 V+ RX2SCL 113 RX2SCL D15 50 HTX1_Y[9]
L11
DGND DGND
C178
5
+3.3HSW +3.3HRT 114 NIRQA1 D14 49 HTX1_Y[8]
DGND 3 to DIGITAL 6/7
V- HAU_N_INT J13 0 115 NIRQA0 D13 48 HTX1_Y[7]
5
R38
+5HSW
5.1K
R84
116 VDD33 D12 47 HTX1_Y[6]
/OE DIR OUT to 006.sht
R227 L B AL IC17
no_use
DGND 10K 117 SCLK/LPSA1 VDD11 46 L H A B X7787A0:TC74LCX245FT(EL (DSP)
10K H X HiZ
118 MOSI/LPSA0 VSS 45 YG263A0:74LVC245APW
R204
R91 119 MISO P0TXCM 44
HDMI
47X4
DGND
SPDIF/DSD_FR_P B8 GND
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
DGND 120 NCS AVDD11TX 43
100
TC74LCX245FT(EL
HBCK/DSDCK_P B7 A8
121 VDD11 P0TXCP 42 SPDIF/DSD_FR
+3.3HSW
RECEIVER/TRANSMITTER
HWCK/DSD_RL_P B6 A7
122 VSS P0TX0M 41 HBCK/DSDCK
SD0/DSD_FL_P B5 A6
BLM15PD300SN1D 123 AVDD33RX1 AVDD33TX 40 HWCK/DSD_RL
R41 C105 SD1/DSD_FC_P B4 A5
+3.3M L43 0.1/10 124 P1RXCM P0TX0P 39 SD0/DSD_FL
no_use SD2/DSD_LFE_P B3 A4 47X4
125 P1RXCP P0TX1M 38 SD1/DSD_FC
R202
IC9, 14, 16 : TC7SET08FU
R42 SD3/DSD_RR_P B2 A3
R28
C149 SD2/DSD_LFE
10K
126 AVDD11RX1 AVDD11TX 37
no_use 0.1/10
BKP1005HS680-T
BKP1005HS680-T
no_use
no_use
HMCK_P B1 A2
no_use
SD3/DSD_RR
TC7SH08FU
127 P1RX0M P0TX1P 36
IC17
J5
Q21 G A1 47
UM6K31N S S 128 P1RX0P P0TX2M 35 HMCK
+3.3HRT R203
L40
L41
3 6 C92 VCC DIR
2 input AND gate
R24
22K
0.1/10 129 AVDD11RX1 AVDD11TX 34
5 2 G G
130 P1RX1M YG959B0 P0TX2P 33 L51 C202
DGND
Q25 D D Q25
4 1 131 P1RX1P VDD11 32 BKP1005HS680-T 0.1/10
IN B 1 5 VCC BLM15PD300SN1D
MN864787
132 AVDD11RX1 VSS 31
L44 C142
0.1/10 133 P1RX2M P1TXCM 30 IC4 : TC74VHCU04FT
IC7 Hex inverters
134 P1RX2P AVDD11TX 29
no_use
IN A 2 Q1
J6
135 VSS P1TXCP 28
BLM15PD300SN1D 136 AVDD33RX0 P1TX0M 27
L45 C103
0.1/10 137 P0RXCM AVDD33TX 26
GND 3 4 OUT Y 1A 1 14 VCC
138 P0RXCP P1TX0P 25
6
C139 DTC044EUBTL
0.1/10 139 AVDD11RX0 P1TX1M 24
140 P0RX0M AVDD11TX 23 1Y 2 13 6A
DGND
A B Y C93
141 P0RX0P P1TX1P 22
0.1/10 142 AVDD11RX0
DGND
P1TX2M 21 2A 3 12 6Y
L L L 143 P0RX1M AVDD11TX 20
L H L 144 P0RX1P P1TX2P 19
2Y 4 11 5A
BLM15PD300SN1D 145 AVDD11RX0 VDD11 18
H L L L46 C133
0.1/10 146 P0RX2M VSS 17
H H H 3A 5 10 5Y
No replacement part available.
BLM15PD600SN1D
+3.3HRT
147 P0RX2P D11 16 HTX1_Y[5] L29
148 VSS
1000P(B)
D10 15 HTX1_Y[4]
0.1/10
0.1/10
22/6.3
3Y 6 9 4A
C137
C140
C143
C147
149 VDD11 D9 14 HTX1_Y[3]
150 NOSDIRQ D8 13 33 HTX1_Y[2]
DGND
AUP_SDO 151 CH1ASD0 D7 12 R233 HTX1_C[1]
GND 7 8 4Y
AUP_WCK 152 CH1ALRCLK VDD11 11
AUP_BCK 153 CH1ABCLK D6 10 HTX1_C[0]
ZK75870
IC2: SII9589-3CTUC 154 CH1ASPDIF
155 VDD33
LPSA1 LPSA0 I2C add
VSS 9
D5 8 HTX1_Y[1]
HS1
@partN
HDMI port processors 156 VSS L L 0x10 D4 7 HTX1_Y[0] no_use
R234
RX1SDA 157 RX1SDA
L H 0x40 D3 6
no_use
no_use
Tie one CD_SENCE line 33
J10
J12
IC17 : TC74LCX245FT
RX1SCL 158 RX1SCL D2 5
to MHL CD_SENCE, the rest to ground
R112 159 RX0SDA
H L 0x70 D1 4
CD_SENSE0-4 Always-On Section
R121
10K R115
10K
160 RX0SCL H H 0xA0 D0 3 HTX2_CLK
DGND
Low-Voltage Octal Bus Transceiver
161 CEC TX0HPD 2
64-68 5
7 CBUS_HPD0-4 MHL Control no_use 162 VDD11 TX0SDA 1
170 SYSCLK/XI
163 TX1ARCIN
164 TX0ARCIN
175 VSYNCOUT
176 HSYNCOUT
J101
177 PCLKOUT
178 VDD33IO
183 VDD33IO
194 VDD33IO
204 VDD33IO
39,43,47,51,55 5 DIR Vcc
1 20
167 NRESET
211 PCLKIN
213 TX1SCL
214 TX1SDA
215 TX1HPD
216 TX0SCL
165 NTEST
166 HSCL0
168 HSDA0
169 VDD33
171 NC/XO
173 VDD11
174 DEOUT
186 VDD11
209 VDD11
210 VDD33
172 VSS
179 Q23
180 Q22
181 Q21
182 Q20
184 Q19
185 Q18
187 Q17
188 Q16
189 Q15
190 VSS
191 Q14
192 Q13
193 Q12
195 Q11
196 Q10
201 VSS
212 VSS
Serial Ports
197 Q9
198 Q8
199 Q7
200 Q6
202 Q5
203 Q4
205 Q3
206 Q2
207 Q1
208 Q0
A1 2 19 OE
DDC0
BLM21PG600SN1D
DDC DDC1
+1.1DH
BLM15PD600SN1D L30
Booting Sequencer A2 B1
+3.3HRT
DDC2
EDID SRAM
NVRAM L17 3 18
1000P(B)
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
22/6.3
DDC3
1000P(B)
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
C102
C108
C126
C129
C132
C135
C138
C141
C145
C148
C150
C152
C154
C157
22/6.3
0.1/10
DDC4
C104
A3 4 17 B2
DGND C81
C83
C84
C87
C88
C90
C91
DDC5
DGND
DGND
DGND
R135
33X4
R130
33X4
R147
33X4
R148
33X4
R142
33X4
DGND
R123 68
R125 68
R105 33
R149 0
R128 0
INT BLM21PG600SN1D
+1.1DH
HDCP Configuration Status, L32 A4 5 16 B3
I2C OTP and Interrupt-Control 74
1000P(B)
BLM15PD600SN1D
+3.3HRT
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
0.1/10
Local Registers
22/6.3
L42
Registers
C121
C124
C158
C160
C161
C162
C164
C165
HTX2_D[7]
I2C
A5 B4
HTX2_D[6]
HTX2_D[5]
HTX2_D[4]
HTX2_D[3]
HTX2_D[2]
HTX2_D[1]
HTX2_D[0]
6 15
1000P(B)
0.1/10
0.1/10
0.1/10
0.1/10
HTX1_CLK
22/6.3
C185
C189
DGND
C94
C96
C97
C98
A6 B5
HRX_C[7]
HRX_C[6]
HRX_C[5]
HRX_C[4]
HRX_C[3]
HRX_C[2]
HRX_C[1]
HRX_C[0]
HRX_Y[7]
HRX_Y[6]
HRX_Y[5]
HRX_Y[4]
HRX_Y[3]
HRX_Y[2]
HRX_Y[1]
HRX_Y[0]
7 14
DGND
HRX_CLK
HRX_DE
HRX_VS
HRX_HS
no_use
L53
HTX1_CLK,HTX1_Y[0-9],HTX1_C[0-9],HTX1_DE,HTX1_HS,HTX1_VS,HTX2_CLK,HTX2_D[0-7] to 003.sht
Power-Down Section
A7 8 13 B6
HRTX_N_RST
BLM21PG600SN1D
(FPGA)
+1.1DH
R0X TMDS Rx
L39 HRX_CLK,HRX_Y[0-7],HRX_C[0-7],HRX_DE,HRX_HS,HRX_VS
A
1000P(B)
to DIGITAL 3/7
TX1SCL
TX1SDA
TX1HPD
TX0SCL
TX0SDA
TX0HPD
(Port 0)
22/6.3
22/6.3
22/6.3
89-96
A8 9 12 B7
C127
C172
C130
C125
C
DPLL
DGND
+3.3HSW +3.3HRT +1.2DH +1.1DH +5HSW
R1X TMDS Rx GND 10 11 B8
+5V_PON
HTX_N_INT
HRX_N_INT
HRTX_N_RST
HAU_N_INT
HDIN_HPD3
HDIN_HPD2
HDIN_HPD1
Packet
1-6,99,100 (Port 1) C22 C1 C8 C16 C23 +3.3HRT +3.3HSW +3.3HRT
Analyzer
HDCP Repeater
8
MHL no_use no_use no_use no_use no_use
Authentication SHA C144 C2 C9 C17 C24 L24
R2X Demux +3.3HRT BLM15PD600SN1D
TMDS Rx Packet no_use no_use no_use no_use no_use
no_use
no_use
LA1
BLM15PD600SN1D
Analyzer
R207
R201
R223
R205
R213
R214
R216
R210
R212
C25
0.1/10
(Port 2)
2.2K
2.2K
C168 C3 C10 C18 C176
DGND
22K
22K
10K
10K
10K
9-16 LABEL NA IC16 V+
C190
no_use WP41650 5
no_use no_use no_use no_use 1000P(B) 3
C26
L38
C4 C11 V-
R3X B DGND DGND
no_use no_use no_use 1 4
TMDS Rx C5 C12 C27 OE VDD
18-25 (Port 3) D DGND
J4
0.1/10(BJ)
XL1 DSP_PON
0
DPLL TX
no_use no_use no_use TP12
R2
C6 C13 C28 2 GND
HDMI Data Path AV TMDS OUT 3
no_use
no_use
no_use
no_use
no_use
no_use
no_use
HDIN_HPD1
TP10
TP17
TP13
TP15
TP16
TP18
TP19
33
and HDCP Unmask Mute Tx 27MHZ
C177
R4X TMDS Rx 79-86 no_use no_use no_use
IC16 HDIN_HPD2
C7 C14 WK84120/
DGND R46
28-35 (Port 4) MHL DGND
WU06670 2 4 R8
FPGA_27MHZ HDIN_HPD3
no_use no_use
Demux DGND DGND DGND DGND DGND DGND DGND DGND 33
1 33 HAU_N_INT
TP11
TP14
DGND DGND TC7SH08FU HRTX_N_RST
A
HRX_N_INT
ARC
ARC SPDIF
HTX_N_INT to DIGITAL 4/7
78 75
Connect to
any one HSW1_N_INT
input port Note: MHL input can be assigned to any port during design FHDMI_N_INT FHDMI_N_INT
to 004.sht
but is hardwired and cannot be selected using firmware. (u-Com)
DV_PON
HSW_N_RST
HDMI_SCL
HDMI_SDA
HSWI2C_ON
no_use
no_use
C166
C167
9
CB10 1000P(B) 0.1/10(BJ) 0.1/10(BJ)
C191 C193 C195
DGND
+1.1DH DGND
IC1, 6 : BD9328FJ IC3, 5 : RP130K331D-TR-F +5.6V
+1.2DH
HSW_PON
NOTICE (model) RESISTOR
1ch step-down DC/DC converter RP130K501D-TR-F
1.117V
+3.3HL
C192 C194 C196
DGND +3.3HRT
HDMI_PON
THM4
J JAPAN REMARKS PARTS NAME 100/6.3
XHI 1000P(B) 0.1/10(BJ) 0.1/10(BJ)
Voltage regulator
C20 +1.2DH
DGND
C169 VL84470 +3.3HSW +3.3D
DGND
NO MARK CARBON (P=5) FILM RESISTOR
no_use
U U.S.A no_use +5.6V
1.117V
0.000V
1.221V
VCC
(2125)
R3
22/6.3 CB6 0.1/10(BJ)
no_use
BLM21PG600SN1D
R237
C85 +1.2DH
Page 112 I8
DGND
J15
CARBON FILM RESISTOR
DGND
(P=10) 0.000V
10/10 BLM21PG600SN1D
C CANADA
0
EN 5V
R208
R211
1.222V +1.2DH
A
VDD 3 VOUT
BLM21PG600SN1D
L12
10K
10K
METAL OXIDE FILM RESISTOR 4
(2125)
R GENERAL
BLM21PG600SN1D
BLM21PG600SN1D
BLM21PG600SN1D
7 VREF OSC VREG to DIGITAL (2)_W4201
no_use
L22
+3.3HL J2
BST
TH1
T CHINA METAL FILM RESISTOR OPEN 2.4A 3.290V C86
0.1/10(BJ) 0 6 5 4 2.4A
1
no_use
XHI DGND
L19
L20
L9
L8
SHUTDOWN 3.301V 3.284V VL84470 DGND DGND
C95
K KOREA METAL PLATE RESISTOR Q12
no_use
+3.3HRT +3.3D
+3.3HPLL +5.6V 3 2 DGND
D14
OCP
3900P(B)
3900P(B)
C48 C113
FIRE PROOF CARBON FILM RESISTOR 12V
22 0.1/10(BJ)
22 0.1/10(BJ)
0.01/16(B)
A AUSTRALIA
22/6.3
J8
C117
C118
Details of colored lines
no_use
L10 1000P(B) L21 1000P(B)
C56
C57
R101
R102
(2125)
VIN 1 2 3
100K
C99
B BRITISH CEMENT MOLDED RESISTOR
(1005)
no_use
1000P(B)
10UH
1000P(B)
10UH
J1
C115
J9
UVLO
( 0 . 5 % ) C 4 2( 0 . 5 % )
no_use
no_use
( 0 . 5 % )C 1 1 0( 0 . 5 % )
C54
0
no_use
no_use
2 Q11
Sheet1:HDMI RxTx
R126
(2125)
C109
4.7K
7.5K
R22
0
C40
RAL035P01
SEMI VARIABLE RESISTOR
C111
C112
G STANDARD IBIAS DGND
C44
C47
RP130K331D-TR
TSD Red / full line: Power supply (+)
(0.5%)
(0.5%)
1 DTA044EUBTL
22/6.3
22/6.3
VOUT VDD
BST R133
+5.6V
BST R39
CHIP RESISTOR 6 5 4 +5HSW
L SINGAPORE
1
Vref DGND GND IC3 CE/CE DGND
IC/CB/XL:1-19
Red /dashed line: Power supply (-)
no_use
no_use
3.284V
(0.5%)
(0.5%)
S LVS Q6
100/6.3
10/10
10/10
R129
2
no_use
DGND
R122
R32
E SOUTH EUROPE
150K
GND
VIN
330K
R127
GND
VIN
R19
C58
C59
R23
22K
22K
FB G 3 2
OHTER :1-249
C80
R68 C62
Current Limit
SW
SW
ERR
SW OUTPUT (1005)
CAPACITOR
J3
0.01/16(B)
5 DRV 0.000V
Orange: Signal detect
4 3 2 1 4 3 2 1
V TAIWAN CE 1 2 GND
0
BD9328FJ 4.995V BD9328FJ
3 IC1 1 2 3 IC6
220K
C77
R69
1K
G G
F RUSSIAN REMARKS PARTS NAME 5 6 7 8
YD960A0
RP130K501D-TR 5 6 7 8
YD960A0
LOGIC Q5
COMP VOUT VDD
DIGITAL (1) Yellow: Clock
FB
COMP
EN
SS
FB
R131 COMP
EN
SS
NO MARK ELECTROLYTIC CAPACITOR SLOPE DGND 2A RAL035P01 1 DGND 2A
4
4700P/25(B)
P LATIN AMERICA
0.1/10(BJ)
PWM R 1 DTA044EUBTL GND IC5 CE/CE
10/10
LVS DGND
10/10
C89
2
3
TANTALUM CAPACITOR 6
Green: Protection detect
C116
C55
C82
S BRAZIL Pin No. Symbol Description
(0.5%)
(0.5%)
G
0.01/16(B) 2.2K
0.01/16(B) 2.2K
R37
DGND
NO MARK CERAMIC CAPACITOR
10 H THAI SS 1 CE Chip Enable ("H" Active)
CERAMIC TUBULAR CAPACITOR
8 Soft Start
2 GND Ground Pin No replacement No replacement Brown: Reset signal
DGND DGND
Blue: Panel key input
DGND
C114
part available. part available.
C49
POLYESTER FILM CAPACITOR 3 VOUT Output Pin
POLYSTYRENE FILM CAPACITOR 4 VDD Input Pin
MICA CAPACITOR 4 DGND DGND
★ All voltages are measured with a 10M Ω /V DC electronic voltmeter.
no_use
GND
P POLYPROPYLENE FILM CAPACITOR
J11
J7
0
SEMICONDUCTIVE CERAMIC CAPACITOR ★ Components having special characteristics are marked ⚠ and must be replaced with
POLYPHENYLENE SULFIDE FILM parts having specifications equal to those originally installed.
S
CAPACITOR
★ Schematic diagram is subject to change without notice.
111
A B C D E F G H I J K L M N
RX-V681/RX-A760
RX-V681 RX-A760
1
DIGITAL 2/7
VIDEO AUX
HDMI IN
1.798V
+1.8DV +1.8D
DIGITAL (1) CB421
HDMI V-AUX DIGITAL(2) FrontHDMI
DC1RS19JAXR190 ZD53430
(2125)
J252
0
DIGITAL (2)
100P(CH)
100P(CH)
100P(CH)
to DIGITAL 5/7
10
11
12
13
14
15
16
17
18
19
DV_SCL
6
7
8
9
FG
6 5 4 DV_SCL
to DIGITAL 4/7 FG
C4220
C4225
C4244
1000P(B)
1000P(B)
1000P(B)
no_use
C4215
C4216
D4202
to 005.sht Q256 DV_SDA ST421
C254
SCL
SDA
GND
+5VPower
HPD
Shield2
Shield1
Shield0
ShieldC
Data2+
Data2-
Data1+
Data1-
Data0+
Data0-
DataC+
DataC-
DV_SDA
CEC
to 004.sht
Utility
3 2 2 4 FG FG
(u-com) 1 3
0.01/16(B)
no_use no_use
DV_PON
(u-Com)
C4250 R4222
AVRL161A1R1NTB
DV_PON
R253
C256
R257
1 2 3
100K
1K
no_use
no_use
no_use
no_use
VDEC_N_RST DGND
C4251
D4203
D4204
C4252
D4206
VDEC_N_RST
Q254
RAL035P01
ADCVBS
no_use
1 DTA044EUBTL DGND
ADPb
ADPr
C4253
EXC24CH900U
EXC24CH900U
EXC24CH900U
EXC24CH900U
4
4
3
ADY
1.800V
L4215
L4216
L4217
L4218
+1.8DPLL DGND
FG FG DGND FG DGND
ESD7004MUTAG
ADCVBS
+3.3DV 5 4 3 2 1
(1005)
ADPb
ADPr
D4205
1
1
2
ADY
J253
0
RP109L181D-TR 6 7 8 9
VOUT VDD +1.2HF
DGND
4
GND IC27 CE
BLM18KG221SN1D
2
G 3
C4206 R4228 47K
1/6.3
C271
1000P(B)
L4202
R4225 47K
no_use
+1.2HF +3.3HF
1/6.3
C279
R281
+3.3V +3.3DV +1.8DV DGND DGND
C4207
BLM18KG221SN1D
BLM18PG221SN1D
100
R280 22/6.3 C4226 C4235
C4208
0.1/10(BJ)
0.1/10(BJ)
no_use
1K 1000P(B) 1000P(B)
L4204
L4208
C280
0.1/10(BJ)
C252
C253
R276
R4231
R260
R272
R274
R278
C4209 C4227 C4236
4.7K
10K
47K
no_use
1K
22
A1576UBTLR
0.1/10(BJ) 22/6.3 22/6.3
3
DGND C4210 C4228 C4237
R4230
R4235
C4081UBTLR
C4081UBTLR
DGND DGND
22
10
0.1/10(BJ) 0.1/10(BJ) 0.1/10(BJ)
Q250 Q251 R279 C4211 C4229 C4238
C250 Q252 DV_PON
220 1000P(B) 0.1/10(BJ) 0.1/10(BJ)
Q253
C4081UBTLR
10/10 C4212 C4230 C4239
1/25 R282
100P(CH) 0.1/10(BJ) 1000P(B)
C251 100
C4231 C4240
R268
R269
R273
R275
R277
2.2K
220K
2.2K
DSCL3_F
10K
470
DSDA3_F 1000P(B) 100P(CH)
C4232
VDEC_CLK
R3PWR5V_F
VDEC_CS
HPD3_F 100P(CH)
DGND
IC423: SII9587CNUC-3
HDMI port processor
AVDD12
AVDD12
+1.8DV +3.3DV
R4XCP
R4XCN
VDD33
R3X2P
R3X2N
R3X1P
R3X1N
R3X0P
R3X0N
R3XCP
R3XCN
VDD12
R1X2P
R1X2N
R1X1P
R1X1N
R1X0P
R1X0N
R1XCP
R1XCN
+1.8DPLL
CD_SENSE0,1,3,4
BKP1005HS680-T
BKP1005HS680-T
10P(CH)
10P(CH)
28.63636MHZ C299
C300
Tie one CD_SENSE line
R4X0N 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 VDD33 to MHL CD_SENSE, the
L254
L253
23 88 rest to ground
0.1/10(BJ)
0.01/16(B)
R4X0P AVDD12
1K 0.082/16
XL21 24
I2C add:0xB0 87
C294
1 4 R4X1N R0X2P
TP283 TP284 25 86 +1.2HF +1.2HF Always-On Section
+1.8DV
HDMI EQUALIZER
R313
2 3 +3.3HF R4X1P R0X2N
BLM18PG221SN1D
BLM18PG221SN1D
47
26 85
BKP1005HS680-T
(0.5%) (0.5%)
CBUS_HPD0,1,3,4
R267
R4X2N R0X1P
R290
to DIGITAL 3/7
4
10/10
10/10
150
C301
C304
27
YE996A0 84 MHL Control
L4205
L4209
R4X2P R0X1N 4
C297
R311 VDEC_CLK,VDEC_YC[0-7],VDEC_DE,VDEC_HS,VDEC_VS,VDEC_CS DGND
L255
to 003.sht 28 83 DGND
C295
1M VDD12 R0X0P
R291
(FPGA) 29 82
680
IC423
C4233 C4241
(0.5%) DSDA0 R0X0N Serial Ports
R4209
47KX4
C288 30 81
TP266 DSCL0 R0XCP 10/10 10/10
31 80 C4234 C4242 DDC 0
0.01/16(B)
R314
CBUS_HPD0
32 SII9587CNUC-3 79
R0XCN
0.1/10(BJ) 0.1/10(BJ)
DDC DDC 1
NVRAM Booting Sequencer
10/10
DDC 3 EDID SRAM
C255
C289
DGND
R4201 R0PWR5V TPVDD12
4.7K 33 89 78 DDC 4
5.1K
XTAL TP280
XTAL1 TP281
TP282
0.1/10(BJ) DSDA1 TCVDD12 DDC 5
34 77
DSCL1 DGND TXCN
Configuration, INT
PWRDWN
35 76
CBUS_HPD1 TXCP HDCP Status, and
AGND
PVDD
ELPF
DGND
DVDD
36 75 I2C OTP
LLC
Local Registers Interrupt Control
J251
DGND
R4202
NC
NC
P0
P1
P2
P3
P4
R1PWR5V TX0N
No replacement part available.
0
5.1K
37 74 I2C Registers
DSDA3 TX0P
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
NC P5 38 73
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R4203 DSCL3 TX1N
TEST_0 P6 39 72
R254 C281 I2C add:0x42 5.1K CBUS_HPD3 TX1P
ADCVBS AIN1 P7 40
5V :10mA 71
VIDEO DECODER
C4203 Power-Down Section
DGND
36 R250 R3PWR5V TX2N
0.1/10(BJ) AIN2 GPO0 41 70 R0X
R270
3.3V:220mA TMDS Rx
+3.3HF
1/25 R4210 47K DSDA4 TX2P A
39
10K AGND GPO1 42 69 (Port 0)
C257
X8841A0 C302 R4211 47K DSCL4
1.2V:548mA ARC
0.1/10(BJ)
VREFP DVDDIO 43 68 C
CBUS_HPD4 VDD12 R1X DPLL
0.1/10(BJ) VREFN DGND 0.1/10(BJ) 44 67 TMDS Rx
Packet
IC21
C277
C286 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
AVDD SFL R252 (Port 1)
5
R320 Analyzer
RSVDL
C258
R4PWR5V
DSDA5
DSCL5
R5PWR5V
SBVCC5
PWRMUX_OUT
LPSBV
RSVD
CD_SENSE0
CD_SENSE1
RSVD
CD_SENSE3
CD_SENSE4
GPIO0
GPIO1
TPWR_CI2CA
RESET#
CSDA
CSCL
INT
SPDIF_IN
no_use 47X4
MHL HDCP Repeater
DGND
0.1/10(BJ) NC P8 VDEC_YC[0] R4238
Authentication SHA
0.1/10(BJ) NC ADV7180BSTZ P9 VDEC_YC[1] R4236
0 Demux
Packet
AGND P10 VDEC_YC[2] Analyzer
10K
+3.3HF
NC P11 VDEC_YC[3]
R4213 47K
R4214 47K
R4233
R3X B
R4212
R4215
C303
NC DVDDIO no_use TMDS Rx
5.1K
5.1K
R4220
D
0X4
R251 AIN3 DGND 0.1/10(BJ) (Port 3)
DPLL
DGND
3.3V : 204mA R4234
TX
10K AIN4 1.8V : 116mA HS VDEC_HS C4221 4.7K HDMI Data Path AV TMDS
R4X and HDCP Unmask Mute Tx
AIN5 INTRQ R315 VDEC_VS DGND DGND TMDS Rx
0.1/10(BJ)
no_use C4222 (Port 4) MHL
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
VDEC_DE +3.3HF
C4218 Demux
R4221
AIN6
NC
RESET
ALSB
SDATA
SCLK
GPO3
GPO2
DGND
DVDD
P15
P14
P13
P12
FIELD
VS
R321 10/10
47X4 0.1/10(BJ) C4223 10K
C4219
ARC
0.1/10(BJ) ARC
10/10 SPDIF
L4203 R4217
C4224 Connect to
BKP1005HS680-T
10
any one input
R255 C261 DGND 4.7/6.3
ADPb port
no_use
no_use
R292
R296
R305
4.7K
36 R259 C273
ADPr 0.1/10(BJ) DGND Note: MHL input can be assigned to any port during design
ADY R256 36 C262 0.1/10(BJ) but is hardwired and cannot be selected using firmware.
0.1/10(BJ)
36 0.1/10(BJ)
no_use
R264
R265
R271
+5HF
R307
C291
C298
39
39
39
R4218
5.1K
6
470P(B)
DGND
+3.3DV R286
10K
R300 33
R303 33
R310 +3.3HF
47X4
DGND
R308
R309
4.7K
4.7K
VDEC_YC[7]
VDEC_YC[6]
VDEC_YC[5]
VDEC_YC[4]
95
IC/CB/XL:20-29 +1.2HF
OHTER :250-349
no_use
no_use
D251
D252
no_use
BLM18KG221SN1D
R4240
R4242
G
L4214
100P(CH)
DGND
10
10
47/6.3
C4201
C4213
Q 2 5 5D
J257
R4239
R4241
R4243
EXC24CH900U
EXC24CH900U
EXC24CH900U
EXC24CH900U
4
10
10
10
+3.3HF
no_use
10P(CH)
L4219
L4220
L4221
L4222
J258
DGND DGND
C4247
0
100P(CH)
+5HF
C4248
1000P(B)
2
G
BLM18KG221SN1D
BLM18KG221SN1D
100P(CH)
DGND C4246
22/6.3
C4202
BKP1005HS680-T
C4204
D
7
Q255
DGND
DGND
VDEC_N_RST
DGND
L4212
L4201
L4213
DGND
DV_SDA
DV_SCL
EXC24CG900U
EXC24CG900U
EXC24CG900U
EXC24CG900U
DGND
100P(CH)
C4245
L4206
L4207
L4210
L4211
0.1/10(BJ)
3 FI422 1
3
NFM18PS105R0J3D NFM18PS105R0J3D
FI421
DGND
DGND
2
DGND
C4243
2
100P(CH)
2
DGND
1
IC21: ADV7180BSTZ C4249
FR_N_INT
FR_N_RST
IC27: RP109L181D-TR
Sheild2
Sheild1
Sheild0
SheildC
Sheild
Data2+
Data2-
Data1+
Data1-
Data0+
Data0-
DataC+
DataC-
FR_SCL
FR_SDA
10-bit, 4 x oversampling SDTV video decoder
DGND
+3.3HL
+1.2DH
CMOS-based voltage regulator
TPWR
DGND
+5H
CEC
no_use
NC
NC
NC
NC
SCN-XH SCN-XH
W4201 W4202 CB422 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
CLOCK PROCESSING BLOCK 1 2 3 4 5 6 7 8 9
3.290V
1.219V
0.000V
502231-2400
XTAL1 WY78680
LLC
XTAL PLL ADLLTPROCESSING Page 111 I9
VDD 4 1 VOUT
DGND
to DIGITAL (1)_CB6
16-BIT to DIGITAL(1)
DIGITAL PIXELDATA
10-BIT,86MHz 001.sht
PROCESSING
FIFO
8 AIN1 AA
ADC
BLOCK P15TOP0 (HDMI Rx)
AIN2 FILTER
MUX BLOCK
2DCOMB Page 111 A1
OUTPUT BLOCK
ANALOG HS
VIDEO
AIN3 AA
SHA A/D VS Vref to DIGITAL (1)_CB1
INPUTS AIN4 FILTER VBISLICER
FIELD
AIN5 AA
COLOR GPO0TO GPO3 Current Limit
FILTER
AIN6 DEMOD
SFL
CE 3 2 GND
INTRQ
REFERENCE I2C/CONTROL
DIGITAL(2)
SCLK SDATA ALSB RESET PWRDWN IC/CB/XL:25-39 IC/CB/XL:421-429
Pin No. Symbol Description OHTER :250-399 OHTER :4201-4299
1 VOUT Output Pin
2 GND Ground Pin
Sheet2:VDec/FHDMI
9 3
4
CE
VDD
Chip Enable Pin ("H" Active)
Input Pin
NOTICE (model) RESISTOR
J JAPAN REMARKS PARTS NAME
U U.S.A NO MARK CARBON (P=5) FILM RESISTOR
C CANADA CARBON (P=10) FILM RESISTOR
R GENERAL METAL OXIDE FILM RESISTOR
T CHINA METAL FILM RESISTOR ★ All voltages are measured with a 10M Ω /V DC electronic voltmeter.
METAL PLATE RESISTOR
K KOREA ★ Components having special characteristics are marked ⚠ and must be replaced
A AUSTRALIA FIRE PROOF CARBON FILM RESISTOR
B BRITISH CEMENT MOLDED RESISTOR
with parts having specifications equal to those originally installed.
G STANDARD SEMI VARIABLE RESISTOR ★ Schematic diagram is subject to change without notice.
L SINGAPORE CHIP RESISTOR
E SOUTH EUROPE
V TAIWAN CAPACITOR
F RUSSIAN REMARKS PARTS NAME
P LATIN AMERICA NO MARK ELECTROLYTIC CAPACITOR Details of colored lines
S BRAZIL TANTALUM CAPACITOR
NO MARK CERAMIC CAPACITOR Red / full line: Power supply (+)
10 H THAI
CERAMIC TUBULAR CAPACITOR Red /dashed line: Power supply (-)
POLYESTER FILM CAPACITOR
POLYSTYRENE FILM CAPACITOR
Orange: Signal detect
MICA CAPACITOR Yellow: Clock
POLYPROPYLENE FILM CAPACITOR
P
Green: Protection detect
SEMICONDUCTIVE CERAMIC CAPACITOR
POLYPHENYLENE SULFIDE FILM Brown: Reset signal
S
CAPACITOR Blue: Panel key input
112
A B C D E F G H I J K L M N
RX-V681/RX-A760
RX-V681 RX-A760
1
DIGITAL 3/7
to 001.sht HRX_CLK,HRX_Y[0-7],HRX_C[0-7],HRX_DE,HRX_HS,HRX_VS
to DIGITAL 1/7 ( H D M I Rx)
HRX_CLK
to 002.sht VDEC_CLK,VDEC_YC[0-7],VDEC_DE,VDEC_HS,VDEC_VS,VDEC_CS
to DIGITAL 2/7 ( V D e c )
VDEC_CLK
IC50
2 D[0-15]
IC53: A3V56S40GTP
D[3]
D[2]
D[1]
D[0]
D[7]
D[6]
D[5]
D[4]
D[11]
D[10]
D[9]
D[8]
D[15]
D[14]
D[13]
D[12]
A[0-23]
8-bit Synchronous DRAM
A[0-23]
to 005.sht MCBUS_N_RD
to DIGITAL 5/7 ( u - C o m ) DQ0-7
FPGA_N_WR A_SUDQM J1 B1 HRX_C[3]
R454
22X4
R455
22X4
R456
22X4
R457
22X4
IO2 IO1
A_SCKE C537 J2 IC50 C2 VDEC_YC[4]
FPGA_N_CS IO2 IO1
0.1/10(BJ) EP4CE15F17C6N
J6 D1 VDEC_YC[6]
+1.2FPG VCCINT IO1
I/O Buffer
FD[11]
FD[10]
FD[15]
FD[14]
FD[13]
FD[12]
B_SDQ[8] K1 D4 0.1/10(BJ)
FD[3]
FD[2]
FD[1]
FD[0]
FD[7]
FD[6]
FD[5]
FD[4]
FD[9]
FD[8]
IO2 VCCD_PLL3
+1.2PLL
VDEC_YC[2] K2 E5
IO2 GNDA3 DGND
CB51 A_SAD[9] K5 F1 C564 VDEC_HS
no_use
A_SAD[5] K6
IO2
IO2
FPGA IO1
IO1
F2 A_SAD[14]
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