AV RECEIVER/AV AMPLIFIER

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
SERVICE MANUAL

IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

RX-V750/DSP-AX750/DSP-AX750SE
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or

RX-V650/HTR-5760
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

■ CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 2 AMP CHECK / 47
IMPEDANCE SELECTOR . . . . . . . . . . . . . . . . . . . . . . 3 DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 48–49
FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5 IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50–60
REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . . 6 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 61–62
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–13 PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 63–77
SPECIFICATIONS / 14–18 PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 78
INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 79–88
DISASSEMBLY PROCEDURES / 20–24 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89–125
SELF DIAGNOSIS FUNCTION (DIAG) / REMOTE CONTROL RAV270, RAV271 . . . . 126–127
. . . . . . . . . . . . . . . . . . . . 25–46 REMOTE CONTROL RAV248, RAV249 . . . . . . . . 128

100885
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ TO SERVICE PERSONNEL
AC LEAKAGE
1. Critical Components Information WALL EQUIPMENT TESTER OR
Components having special characteristics are marked Z OUTLET UNDER TEST EQUIVALENT
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
that all exposed conductive surfaces are properly insulated INSULATING
from supply circuits. TABLE

● Meter impedance should be equivalent to 1500 ohm shunted ● Leakage current must not exceed 0.5mA.
by 0.15µF.
● Be sure to test for leakage with the AC plug in both
polarities.
“CAUTION”
“F1, F2 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A, 125V FUSE.”
A V
CAUTION
F1, F2 : REPLACE WITH SAME TYPE 10A, 125V FUSE.
ATTENTION
F1, F2 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 10A, 125V.

WARNING: CHEMICAL CONTENT NOTICE!

RX-V750/DSP-AX750/DSP-AX750SE

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or
plastic (where applicable) components may also contain traces of chemicals found by the California Health and
RX-V650/HTR-5760

Welfare Agency (and possibly other entities) to cause cancer and/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 expose eyes to solder/flux vapor!

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 /

The P.C.B.s installed in this unit are soldered using the fol-
lowing solder.

Among some types of lead free solder currently available, it

is recommended to use one of the following types for the
repair work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)

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 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

Caution:
1. 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. If lead solder must be used, be sure to remove lead-free
solder from each terminal section of the parts to be re-
placed and from the area around it completely before sol-
dering, or make sure that the lead free solder and lead
solder melt together fully.

■ IMPEDANCE SELECTOR

WARNING:
Do not change the setting of the IMPEDANCE SELECTOR

RX-V750/DSP-AX750/DSP-AX750SE
switch when the unit power is switched on, as doing so may

RX-V650/HTR-5760
damage the unit.

IMPEDANCE SELECTOR switch

3
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ FRONT PANELS
▼ RX-V750 (U, C, R, T, K, A, G, L models)

▼ DSP-AX750 (J model)
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ DSP-AX750SE (B model)

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 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V650 (U, C, R, T, K, A, B, G, L, E models)

▼ HTR-5760 (U, C, T, K, A models)

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

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 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ REMOTE CONTROL PANELS

▼ RAV270 ▼ RAV271 ▼ RAV248 ▼ RAV249

CODE SET TRANSMIT CODE SET TRANSMIT

TRANSMIT RE-NAME CLEAR LEARN TRANSMIT RE-NAME CLEAR LEARN

SYSTEM SYSTEM
POWER POWER STANDBY POWER POWER POWER STANDBY POWER
SYSTEM SYSTEM
POWER STANDBY SLEEP INPUT MODE POWER STANDBY SLEEP INPUT MODE
TV AV TV AV

CD MD/CD-R TUNER SLEEP CD MD/CD-R TUNER SLEEP

A B PHONO MULTI CH IN A B PHONO MULTI CH IN

DVD DTV/CBL V-AUX MULTI CH IN DVD DTV/CBL V-AUX MULTI CH IN

V-AUX TUNER MD/CD-R CD V-AUX TUNER MD/CD-R CD

VCR 1 DVR/VCR2 AMP VCR 1 DVR/VCR2 AMP

DTV/CBL VCR 1 DVR/VCR2 DVD DTV/CBL VCR 1 DVR/VCR2 DVD

TV VOL TV CH VOLUME TV VOL TV CH VOLUME

SELECT SELECT

POWER POWER AMP POWER POWER AMP TV MUTE TV INPUT TV MUTE TV INPUT
TV AV TV AV MUTE MUTE

REC REC STEREO HALL JAZZ ROCK STEREO HALL JAZZ ROCK

AUDIO AUDIO 1 2 3 4 1 2 3 4
DISC SKIP DISC SKIP
MUSIC ENTERTAIN TV THTR MOVIE MUSIC ENTERTAIN TV THTR MOVIE

VOL VOL 5 6 7 8 5 6 7 8

FREQ/RDS EON
V /DTS NIGHT EX/ES STRAIGHT V /DTS NIGHT EX/ES STRAIGHT
9 0 10 ENTER 9 0 10 ENTER
MODE PTY SEEK START
EFFECT EFFECT
LEVEL SET MENU MUTE LEVEL SET MENU MUTE
LEVEL PRESET/CH SET MENU LEVEL PRESET/CH SET MENU
RX-V750/DSP-AX750/DSP-AX750SE

TITLE MENU TITLE MENU

TV VOL TV VOL TITLE MENU TITLE MENU
TV INPUT A/B/C/D/E TV INPUT A/B/C/D/E
A/B/C/D/E A/B/C/D/E
RX-V650/HTR-5760

CH CH CH CH SELECT SELECT
TV MUTE TV MUTE
SELECT SELECT
TEST ON SCREEN TEST ON SCREEN
PRESET PRESET PRESET PRESET
RETURN DISPLAY RETURN DISPLAY
TEST ON SCREEN STRAIGHT TEST ON SCREEN STRAIGHT
TV VOL TV VOL
RETURN DISPLAY RETURN DISPLAY REC REC
EFFECT EFFECT
AUDIO AUDIO
STEREO HALL JAZZ ROCK STEREO HALL JAZZ ROCK DISC SKIP DISC SKIP
1 2 3 4 1 2 3 4

MUSIC ENTERTAIN TV THTR MOVIE MUSIC ENTERTAIN TV THTR MOVIE FREQ/RDS MODE PTY SEEK START EON

5 6 7 8 5 6 7 8 RAV248 RAV249
WC55260 US WC55270 EU

V /DTS PURE DIRECT NIGHT EX/ES V /DTS PURE DIRECT NIGHT EX/ES

9 0 10 ENTER 9 0 10 ENTER
CHP/INDEX

RAV270 RAV271
WC63290 US WC63300 EU

RX-V750 (U, C, R, T, K, A, L models) RX-V750 (G model) RX-V650 (U, C, R, T, K, A, L models) RX-V650 (B, G, E models)
DSP-AX750 (J model) DSP-AX750SE (B model) HTR-5760 (U, C, R, T, K, A models)

6
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ REAR PANELS
▼ RX-V750 (U, C models)

▼ RX-V750 (R model)

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
▼ RX-V750 (T model)

7
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V750 (K model)

▼ RX-V750 (A model)
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V750 (G model)

8
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V750 (L model)

▼ DSP-AX750 (J model)

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
▼ DSP-AX750SE (B model)

9
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V650 (U, C models)

▼ RX-V650 (R model)
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V650 (T model)

10
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V650 (K model)

▼ RX-V650 (A model)

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
▼ RX-V650 (B model)

11
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ RX-V650 (G, E models)

▼ RX-V650 (L model)
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ HTR-5760 (U, C models)

12
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

▼ HTR-5760 (T model)

▼ HTR-5760 (K model)

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
▼ HTR-5760 (A model)

13
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ SPECIFICATIONS
AUDIO SECTION / [RX-V650/HTR-5760]
Minimum RMS Output Power (Power Amp. Section) / FRONT L/R (1 kHz, 10 % THD)
[RX-V750/DSP-AX750/DSP-AX750SE] R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 135 W
(20 Hz to 20 kHz) CENTER (1 kHz, 10 % THD)
FRONT L/R R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 135 W
U, C, R, T, K, A, B, G, L models (0.06% THD, 8 ohms) . . . 100 W + 100 W SURROUND L/R (1 kHz, 10 % THD)
J model (0.09% THD, 6 ohms) . . . . . . . . . . . . 100 W + 100 W R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 135 W
CENTER SURROUND BACK L/R (1 kHz, 10 % THD)
U, C, R, T, K, A, B, G, L models (0.06% THD, 8 ohms) . . . . . . . . . 100 W R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 135 W
J model (0.09% THD, 6 ohms) . . . . . . . . . . . . . . . . . . . 100 W DIN Standard Output Power Per Channel (B, G, L, E models)
SURROUND L/R [RX-V750/DSP-AX750/DSP-AX750SE]
U, C, R, T, K, A, B, G, L models (0.06% THD, 8 ohms) . . . 100 W + 100 W (1 kHz, 0.7 % THD, 4 ohms)
J model (0.09% THD, 6 ohms) . . . . . . . . . . . . 100 W + 100 W FRONT L/R . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 W + 150 W
SURROUND BACK L/R CENTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 W
U, C, R, T, K, A, B, G, L models (0.06% THD, 8 ohms) . . . 100 W + 100 W SURROUND L/R . . . . . . . . . . . . . . . . . . . . . . . . 150 W + 150 W
J model (0.09% THD, 6 ohms) . . . . . . . . . . . . 100 W + 100 W SURROUND BACK L/R . . . . . . . . . . . . . . . . . . . 150 W + 150 W
(1 kHz) [RX-V650/HTR-5760]
FRONT L/R (1 kHz, 0.7 % THD, 4 ohms)
U, C, R, T, K, A, B, G, L models (0.7% THD, 8 ohms) . . . . 115 W + 115 W FRONT L/R . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 W + 145 W
CENTER CENTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 W
U, C, R, T, K, A, B, G, L models (0.7% THD, 8 ohms) . . . . . . . . . . 115 W SURROUND L/R . . . . . . . . . . . . . . . . . . . . . . . . 145 W + 145 W
SURROUND L/R SURROUND BACK L/R . . . . . . . . . . . . . . . . . . . 145 W + 145 W
RX-V750/DSP-AX750/DSP-AX750SE

U, C, R, T, K, A, B, G, L models (0.7% THD, 8 ohms) . . . . 115 W + 115 W IEC Power (B, G, L, E models)
SURROUND BACK L/R [RX-V750/DSP-AX750/DSP-AX750SE]
RX-V650/HTR-5760

U, C, R, T, K, A, B, G, L models (0.7% THD, 8 ohms) . . . . 115 W + 115 W FRONT L/R, 1 kHz, 0.06% THD, 8 ohms . . . . . . 110 W + 110 W
[RX-V650/HTR-5760] [RX-V650/HTR-5760]
(20 Hz to 20 kHz) FRONT L/R, 1 kHz, 0.06% THD, 8 ohms . . . . . . 105 W + 105 W
FRONT L/R Dynamic Power Per Channel (IHF) /
U, C, R, T, K, A, B, G, L, E models (0.06% THD, 8 ohms) . . . 95 W + 95 W [RX-V750/DSP-AX750/DSP-AX750SE]
CENTER FRONT L/R
U, C, R, T, K, A, B, G, L, E models (0.06% THD, 8 ohms) . . . . . . . . 95 W U, C, R, T, K, A, B, G, L models (8/6/4/2 ohms) . . . 135/170/200/245 W
SURROUND L/R J model (6/4/2 ohms) . . . . . . . . . . . . . . . . . . . 140/170/215 W
U, C, R, T, K, A, B, G, L, E models (0.06% THD, 8 ohms) . . . 95 W + 95 W [RX-V650/DSP-AX750/DSP-AX750SE]
SURROUND BACK L/R U, C, R, T, K, A, B, G, L, E models (8/6/4/2 ohms) . . . 130/165/195/240 W
U, C, R, T, K, A, B, G, L, E models (0.06% THD, 8 ohms) . . . 95 W + 95 W Dynamic Headroom (U, C models)
(1 kHz) [RX-V750/DSP-AX750/DSP-AX750SE]
FRONT L/R 8 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.30 dB
U, C, R, T, K, A, B, G, L, E models (0.7% THD, 8 ohms) . . 110 W + 110 W [RX-V650/HTR-5760]
CENTER 8 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.36 dB
U, C, R, T, K, A, B, G, L, E models (0.7% THD, 8 ohms) . . . . . . . . 110 W Damping Factor /
SURROUND L/R FRONT L/R, 20 Hz to 20 kHz, 8 ohms . . . . . . . . . . 100 or more
U, C, R, T, K, A, B, G, L, E models (0.7% THD, 8 ohms) . . 110 W + 110 W Input Sensitivity/Impedance /
SURROUND BACK L/R (1 kHz, 100W/8 ohms)
U, C, R, T, K, A, B, G, L, E models (0.7% THD, 8 ohms) . . 110 W + 110 W PHONO MM [RX-V750/DSP-AX750/DSP-AX750SE] . . . 2.5 mV/47 k-ohms
Maximum Power (EIAJ) / CD, etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/47 k-ohms
[RX-V750/DSP-AX750/DSP-AX750SE] EXT. DECODER
FRONT L/R (1 kHz, 10 % THD) FRONT L/R . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/47 k-ohms
R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 140 W CENTER . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/47 k-ohms
J model (6 ohms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 W SURROUND L/R . . . . . . . . . . . . . . . . . . . 200 mV/47 k-ohms
CENTER (1 kHz, 10 % THD) SURROUND BACK L/R . . . . . . . . . . . . . . 200 mV/47 k-ohms
R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 140 W SUBWOOFER . . . . . . . . . . . . . . . . . . . . . 200 mV/47 k-ohms
J model (6 ohms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 W Maximum Input Signal /
SURROUND L/R (1 kHz, 10 % THD) PHONO MM [RX-V750/DSP-AX750/DSP-AX750SE]
R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 140 W 1kHz, 0.1 % THD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mV
J model (6 ohms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 W CD, etc., 1kHz, 0.5 % THD (EFFECT ON) . . . . . . . . . . . . . 2.2 V
SURROUND BACK L/R (1 kHz, 10 % THD)
R, T, K models (8 ohms) . . . . . . . . . . . . . . . . . . . . . . . . 140 W
J model (6 ohms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 W

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 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

Output Level/Impedance / VIDEO SECTION /

REC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/1.2 k-ohms Video Signal Type (Glay Back)/
PRE OUT (FRONT, CENTER, SURROUND, SURROUND BACK,) J, U, C, R, K models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTSC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V/1.2 k-ohms T, A, B, G, L, E models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAL
SUBWOOFER OUT (2ch Stereo & FRONT SP: Small) Video Conversion /
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 V/1.7 k-ohms J, U, C, R, T, K, A, B, G, L, E models . . . . . . . . . . . . . . . . NTSC
ZONE 2 OUT (U, C, A models) R, T, A, B, G, L, E models . . . . . . . . . . . . . . . . . . . . . . . . . . PAL
. . . . . . . . . . . . . . . . . . . . . . . . . . 200 m V/1.2 k-ohms Composite Video Signal Level /
Headphone Jack Rated Output/Impedance / . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vp-p/75 ohms
S-Video Signal Level /
CD, etc. 1 kHz, 50 mV, 8 ohms . . . . . . . . . . 150 mV/100 ohms Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vp-p/75 ohms
Frequency Response / C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.286 Vp-p/75 ohms
CD, etc. 10 Hz to 100 kHz, FRONT L/R . . . . . . . . . . . . 0/-3.0 dB Component Signal Level /
Total Harmonic Distortion (20 Hz to 20 kHz) / Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vp-p/75 ohms
PHONO MM [RX-V750/DSP-AX750/DSP-AX750SE] to REC OUT (1 V) Cb/Cr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 Vp-p/75 ohms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 % or less D4 Video Signal (J model) /
CD, etc. (2ch Stereo) to FRONT SP OUT (50W/8 ohms) Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vp-p/75 ohms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06 % or less Cb/Cr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 Vp-p/75 ohms
RIAA Equalization Deviation / Video Maximum Input Level /
PHONO MM [RX-V750/DSP-AX750/DSP-AX750SE] . . . . 0 ± 0.5 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Vp-p or more
Signal to Noise Ratio (IHF-A Network) / Video Signal to Noise Ratio /
[RX-V750/DSP-AX750/DSP-AX750SE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB or more
PHONO MM (Input shorted, REC OUT) Monitor Out Frequency Response /
J model (2.5 mV) . . . . . . . . . . . . . . . . . . . . . . 80 dB or more Video Signal . . . . . . . . . . . . . . . . . . . . 5 Hz to 10 MHz, -3 dB
U, C, R, T, K models (5 mV) . . . . . . . . . . . . . . 86 dB or more S-Video Signal . . . . . . . . . . . . . . . . . . 5 Hz to 10 MHz, -3 dB

RX-V750/DSP-AX750/DSP-AX750SE
A, B, G, L models (5 mV) . . . . . . . . . . . . . . . . 81 dB or more Component Video Signal . . . . . . . . . . 5 Hz to 60 MHz, -3 dB

RX-V650/HTR-5760
CD, etc. (EFFECT OFF, Input shorted, 250mV, SP OUT) . . 100 dB or more D4 Video Signal (J model) . . . . . . . . . 5 Hz to 60 MHz, -3 dB
[RX-V650/HTR-5760]
CD, etc. (EFFECT OFF, Input shorted, 250mV, SP OUT) . . 100 dB or more FM SECTION (except DSP-AX750SE) /
Residual Noise (IHF-A Network) / Tuning Range
FRONT L/R SP OUT . . . . . . . . . . . . . . . . . . . . . 150 µV or less U, C models . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9 MHz
Channel Separation / R, L models . . . . . . . . . . . . 87.5 to 108.0/87.50 to 108.00 MHz
PHONO MM [RX-V750/DSP-AX750/DSP-AX750SE] (Input shorted) T, K, A, B, G, E models . . . . . . . . . . . . . . 87.50 to 108.00 MHz
1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 dB or more J model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76.0 to 90.0 MHz
10 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB or more 50 dB Quieting Sensitivity (IHF)
CD, etc. (Input 5.1 kΩ shorted) 1 kHz 100% MOD.
1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 dB or more Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 µV (17.3 dBf)
10 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 dB or more Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 µV (39.2 dBf)
Tone Control Characteristics / Usable Sensitivity (IHF)
FRONT, CENTER SUBWOOFER Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 µV (11.2 dBf)
BASS Boost/Cut (50 Hz) . . . . . . . . . . . . . . . +6 dB/-6 dB Selectivity
Turnover Frequency . . . . . . . . . . . . . . . . . 350 Hz at 400 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB
TREBLE Boost/Cut (20 kHz) . . . . . . . . . . . . . . +6 dB/-6 dB Signal to Noise Ratio (IHF)
Turnover Frequency . . . . . . . . . . . . . . . . . 3.5 kHz Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 dB
Filter Characteristics / Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB
FRONT, CENTER, SURR., SURR. BACK SP SMALL Harmonic Distortion (1 kHz)
Frequency . . 40/60/80/90/100/110/120/160/200 Hz Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 %
H.P.F . . . . . . . . . . . . . . . . . . . . . . . . . . . +12 dB/oct. Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 %
SUBWOOFER Stereo Separation (1 kHz) . . . . . . . . . . . . . . . . . . . . . . . . 42 dB
Frequency . . 40/60/80/90/100/110/120/160/200 Hz Frequency Response
L.P.F . . . . . . . . . . . . . . . . . . . . . . . . . . . +24 dB/oct. 20 Hz to 15 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5/-2.0 dB
Antenna Input . . . . . . . . . . . . . . . . . . . . . . 75 ohms unbalanced

AM SECTION (except DSP-AX750SE) /

Tuning Range
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . 530 to 1710 kHz
R, L models . . . . . . . . . . . . . . . . . 530 to 1710/531 to 1611 kHz
K, A, B, G, E, J models . . . . . . . . . . . . . . . . . 531 to 1611 kHz
Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 µV/m
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna

15
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

GENERAL /
Power Supply /
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . AC 120 V, 60 Hz
Manufactured under license from Dolby Laboratories.
R model . . . . . . . . . . . . . AC 110/120/220/230-240 V, 50/60 Hz
“Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol
L model . . . . . . . . . . . . . . . . . . . . AC 220/230-240 V, 50/60 Hz
T model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 220 V, 50 Hz are trademarks of Dolby Laboratories.
K model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 220 V, 60 Hz
A model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240 V, 50 Hz
B, G, E models . . . . . . . . . . . . . . . . . . . . . . . . AC 230 V, 50 Hz V
J model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 100 V, 50/60 Hz
Power Consumption /
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400W/500VA
R, T, K, A, B, G, L, E models . . . . . . . . . . . . . . . . . . . . . . 440W
J model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 W
Maximum Power Consumption “DTS”, “DTS-ES Digital Surround”, “Neo:6” and “DTS 96/24” are
R model (6ch Drive, 10% THD) . . . . . . . . . . . . . . . . . . . 850 W registered trademarks of Digital Theater Systems, Inc.
Standby Power Consumption /
U, C, T, K, A, B, G, E, J models . . . . . . . . . . . . . . . . . . . . 0.1 W
R, L models (AC 240V, 50Hz) . . . . . . . . . . . . . . . . . . . . . 0.1 W
AC Outlet /
2 Switched Outlet "SILENT CINEMA"is a trademark of YAMAHA CORPORATION.
U, C, G, E, J models . . . . . . . . . . . . . . . . . . 100 W Max. total
R, T, L models . . . . . . . . . . . . . . . . . . . . . . . . 50 W Max. total
1 Switched Outlet
A, B models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 W Max.
RX-V750/DSP-AX750/DSP-AX750SE

Dimensions (W x H x D) /
RX-V650/HTR-5760

RX-V750, DSP-AX750, DSP-AX750SE, RX-V650

. . . . . . . . . . . . . . . . . . . . . . . . . 435 x 171 x 420 mm
(17-1/8" x 6-3/4" x 16-9/16")
HTR-5760 . . . . . . . . . . . . . . . . . . . . . . . . 435 x 171 x 416 mm
(17-1/8" x 6-3/4" x 16-3/8")
Weight / 12.5 kg (27 lbs 9 oz) DIMENSIONS
Finish / HTR-5760
RX-V750 . . . . . . . . . . . . . . . . Black color (U, C, R, A, G models) RX-V750, DSP-AX750, DSP-AX750SE, RX-V650
Titanium color (C, G, L models)

(7/8")
(7/8")

22
22
Gold color (R, T, K models)
DSP-AX750 . . . . . . . . . . . . . . Gold color (J model)
DSP-AX750SE . . . . . . . . . . . . Black color (B model)
Titanium color (B model)
RX-V650 . . . . . . . . . . . . Black color (U, C, R, A, B, G, E models)
Titanium color (C, B, G, E models)
380 (14–15/16")

376 (14–13/16")
420 (16–9/16")

416 (16–3/8")
Gold color (R, T, K, G, L, E models)
HTR-5760 . . . . . . . . . . . Black color (U, C, A models)
Silver color (U, C, A models)
Gold color (T, K models)
Accessories / . . . . . . . . . . . . . . . . . Remote Control x 1
Battery (Manganese Dry) x 4
Optimizer Microphone x 1
Indoor FM Antenna x 1 (Except DSP-AX750SE)
PAL 75/300 ohms Antenna Adapter x 1 (RX-V650 B model only)
AM Loop Antenna x 1 (Except DSP-AX750SE)
(11/16")

(11/16")
18

18

* Specifications subject to change without notice.

435 (17–1/8")
U ........ USA model
C ........ Canadian model
R ........ General model
(5–7/8")

(6–3/4")

T ........ Chinese model

150

171

K ........ Korean model

A ........ Australian model
B ........ British model
G ........ European model
(13/16")

L ........ Singapore model

21

E ........ South European model

J ........ Japanese model
Unit : mm (inch)

16
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

● SET MENU TABLE /

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

17
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

18
● THE VARIABLE RANGE OF THE PARAMETER (MIN/MAX/STEP) /
RX-V650/HTR-5760
RX-V750/DSP-AX750/DSP-AX750SE
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ INTERNAL VIEW

q w e r ty u i o !0 !1

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
!2 !3 !4 !5 !6 !7

q SUB TRANS P.C.B. o CONVERSION (2) P.C.B.

w MAIN (2) P.C.B. !0 FUNCTION (1) P.C.B.
e MAIN (6) P.C.B. !1 DSP P.C.B.
r FM/AM TUNER (Except DSP-AX750SE) !2 OPERATION (3) P.C.B.
t MAIN (3) P.C.B. !3 OPERATION (1) P.C.B.
y CONVERSION (1) P.C.B. !4 POWER (1) P.C.B.
u FUNCTION (3) P.C.B. !5 MAIN (1) P.C.B.
i FUNCTION (4) P.C.B. !6 FUNCTION (2) P.C.B.
!7 OPERATION (4) P.C.B.

19
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ DISASSEMBLY PROCEDURES
• The description below uses DSP-AX750 (J midel) as a
representative model.
• Remove parts in disassembly order as numbered.
• Disconnect the power cable from the AC outlet.

1. Removal of Top Cover

a. Remove 4 screws ( q ) and 4 screws ( w ). (Fig. 1) q w
b. Slide the Top Cover rearward to remove it. (Fig. 1)

2. Removal of Front Panel

a. Remove the VOLUME knob, PROGRAM knob and the
INPUT knob.
b. Remove 3 screws ( e ) and 3 screws ( r ) and then
remove the Front Panel. (Fig. 2, 3) e r
RX-V750/DSP-AX750/DSP-AX750SE

1
RX-V650/HTR-5760

1
Fig. 1

3 3 3 4 4 4

Fig. 2 Fig. 3

20
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

3. Removal of Sub Chassis

a. Remove 2 push rivets ( t ) and then remove the Side t
Plates L/R. (Fig. 4, 5)
b. Loosen the harness fixture fixing the cable.
c. Remove connectors CB863 (3P), CB505 (21P), CB306
(8P), CB309 (5P), CB3(3P) and CB7 (6P). (Fig. 7)
d. Remove 2 screws ( y ) and then remove the Sub y
Chassis. (Fig. 6)

5 5
Fig. 4 Fig. 5

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
6 6
Fig. 6

Fig. 7

21
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

4. Removal of P.C.B. Unit

a. Remove 31 screws ( u ). (Fig. 8) u
b. Remove 1 screw ( i ). (Fig. 9) i
c. Disconnect the following connectors.

d. Remove the P.C.B. Unit. (Fig. 11)

7 7 7 7
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

8
7 7 7 7 7
Fig. 8 Fig. 9

● P.C.B. Unit

Fig. 10 Fig. 11

22
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

5. Operation check of MAIN (1) P.C.B.

a. Remove 2 screws ( o ). (Fig. 12) o
* Arrow marks ( ) are printed to identify the screws to be
removed. !0 !1
b. Remove 3 screws ( !0 ) and 2 screws ( !1 ). (Fig. 13)
c. Loosen the harness fixture fixing the cable.
d. Raise the Amp Unit from the front toward the back.
e. Put an insulating sheet under the Amp Unit before per-
forming any checks for proper operation.

When checking the P.C.B.:

• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flat cable, use care for the polarity.
• The P.C.B. removed from the rear panel does not work because
its grounding is loose. Be sure to connect the ground of each
P.C.B. to the chassis or GND with a jumper wire or the like.

11 11

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
9 10 10 10
9

Fig. 12 Fig. 13

Fig. 14

23
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

6. Operation check of MAIN (2) P.C.B.

a. Remove 1 screw ( i ). (Fig. 9) i
b. Remove 3 screws ( !2 ). (Fig. 15) !2
c. Remove 1 screw ( !3 ) and 1 screw ( !4 ). (Fig. 16) !3 !4
d. Loosen the harness fixture fixing the cable.
e. Holding the rear panel, raise the MAIN (2) P.C.B. so that
its bottom face can be seen. (Fig. 17)
f. Put an insulating sheet under the P.C.B. before perform-
ing any checks for proper operation.

When checking the P.C.B.:

• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flat cable, use care for the polarity.
• The P.C.B. removed from the rear panel does not work because
its grounding is loose. Be sure to connect the ground of each
P.C.B. to the chassis or GND with a jumper wire or the like.

13 14
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

12 12 12

Fig. 15

Fig. 16

Fig. 17

24
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ SELF DIAGNOSIS FUNCTION (DIAG)

This product has a built-in self diagnosis function (DIAG) to
facilitate inspection, measurement and determination of a
faulty item, if any. There are 17 DIAG menu items, each hav-
ing sub-menu items.

No. DIAG menu Sub-menu

1 DSP THR 1. YSS MARGIN
2. FULL BIT
2 BYPASS 1. ANALOG BYPASS
2. DSP BYPASS
3 RAM THR 1. RAM MARGIN
2. RAM FULL BIT
4 PRO LOGIC/NEO6 1. Pro Logic I
2. Pro Logic II
3. NEO:6
5 SPEAKERS SET 1. FRONT : SMALL 0dB
2. CENTER : NONE
3. LFE/B : FRNT
4. Pres Mix : 5ch
5. Front GAIN 1

RX-V750/DSP-AX750/DSP-AX750SE
6. Front GAIN 2

RX-V650/HTR-5760
7. Zone 2 Amp ON
6 EXT-INPUT 1. 6CH_INPUT_6
2. 6CH_INPUT_8
7 MIC CHECK 1. MIC CHECK – – dB
8 STRAIGHT DISPLAY CHECK 1. STRAIGHT (Initial display /
2. VFD DISP OFF/OSD OFF
3. VFD DISP ALL/OSD Character pattern
4. VFD DIMMER/OSD Character pattern
5. CHECK PATTERN/OSD Character pattern
9 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 LFE
10. LFE (Test tone 35–205Hz)
10 FACTORY PRESET 1. PRESET INHI (memory initialization inhibited /
2. PRESET RSRV (memory initialized /
11 AD DATA CHECK/FAN TEST 1. PRD/PRV
2. THM/FAN OUT
3. REC OUT
4. IMP SW/POWER LIMITER DISP
5. PANEL KEY
12 V_CONV_STATUS 1. LOW BYTE
2. HIGH BYTE
13 IF STATUS 1. INSIDE STATUS 1 (5 Byte)
2. INSIDE STATUS 2 (3 Byte)
3. CHANNEL STATUS 1 (5 Byte)
4. CHANNEL STATUS 2 (5 Byte)
5. CHANNEL STATUS 3 (5 Byte)

25
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

No. DIAG menu Sub-menu

6. CHANNEL STATUS 4 (5 Byte)
7. CHANNEL STATUS 5 (4 Byte)
8. BSI 1 (5 Byte)
9. BSI 2 (5 Byte)
10. BSI 3 (5 Byte)
11. BSI 4 (5 Byte)
12. BSI 5 (5 Byte)
13. BSI 6 (5 Byte)
14. BSI 7 (2 Byte)
15. TI 1 (5 Byte)
16. TI 2 (1 Byte)
17. Mute Trigger (5 Byte)
14 DSP RAM CHECK 1. YSS BUS
2. SD BUS
15 PROTECTION SETTING 1. PS L
(Not applied to these models) 2. PS H
3. DC L
4. DC H
5. FAN_0
6. FAN_1
7. FAN_2
8. FAN_3
RX-V750/DSP-AX750/DSP-AX750SE

9. FAN_4
RX-V650/HTR-5760

10. FAN_5
11. TEMP
12. PL_8_M_L:
13. PL_8_M_H:
14. PL_8_N_L:
15. PL_8_N_H:
16. PL_6_M_L:
17. PL_6_M_H:
18. PL_6_N_L:
19. PL_6_N_H:
16 SOFT SWITCH 1. SW MODE : PCB/SOFT
CHENGE SW BY EFFECT KEY 2. MODEL : V750–V450
3. TUNER DEST : J/UC/ATKBG/RL
4. RDS EXIST : EXIST/NOT
5. ZONE2 EXIST : EXIST/NOT
6. VIDEO FORMAT : NTSC/PAL
17 ROM VER/SUM/PORT 1. VERSION DISP
2. SUM ALL/PROGRAM
3. PORT
4. AAC PORT

26
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

● Starting DIAG
Press the “STANDBY/ON” key of the main unit while simul-
taneously pressing the “INPUT MODE” key and the “MULTI
CH INPUT” key to activate the DIAG function.

Turn on the power while pressing these keys.

● Starting DIAG in the protection cancel

mode
If the protection function works and causing hindrance

RX-V750/DSP-AX750/DSP-AX750SE
to trouble diagnosis, cancel the protection function as

RX-V650/HTR-5760
described below and it will be possible to enter the
DIAG mode. (The protection functions other than the
excess current detect function will be disabled.)
Press the “STANDBY/ON” key while simultaneously press-
ing those two keys indicated in the figure above. At this time,
keep pressing those two keys for 3 seconds or longer.
In this mode, the “SLEEP” segment of the FL display of the
main unit flashes to indicate that the mode is DIAG mode
with the protection functions disabled.

CAUTION!
Using this product with the protection function disabled
may cause damage to itself. Use special care for this point
when using this mode.

● Canceling DIAG
1 Before canceling DIAG, execute setting for PRESET of 1
DIAG menu No.10 (Memory initialization inhibited or
Memory initialized).
* In order to keep the user memory stored, be sure to se-
lect PRESET INHIBITED (Memory initialization inhibited).
Protection history will remain in memory. 2
2 Turn off the power by pressing the “STANDBY/ON” key of
the main unit.

27
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

● Display provided when DIAG started

When the monitor is connected, DIAGNOSTIC MENU
appears on its screen as shown in the figure.
On the FL display of the main unit, an opening message
(including the version and the protection history) appears
for a few seconds followed by the diagnostic menu dis-
play (1. YSS MARGIN).

DIAGNOSTIC MENU
1.DSP THR 10.PRESET
2.BYPASS 11.AD/FAN
3.RAM THR 12.VC STATUS
4.PRO LOGIC 13.IF STATUS
5.SP SET 14.DSP RAM
6.EXT_INPUT 15.PRT SET
7.MIC CHECK 16.SOFT SW
8.VFD CHECK 17.VER/SUM/P
9.MAN,LTEST
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

When there is no history of protection function:

When there is no protection history

NO PROTECT Z 1.YSS MARGIN

Version (1 alphabet)

When there is a history of protection function:

The FL display appears as shown below depending on the
type of the protection function.

The protection function worked due to exces-

sive current through the amplifier. Causes
I PROTECT Z
could be a short at the speaker terminal or a
defect in the amplifier. The protection func-
tion activates immediately to turn off the
power, with no history display at turn-on, if
the amplifier is defective.

28
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

The protection function worked due to a de-

fect or overload in the power supply. If the
PS PRT :000 Z
power is turned on with the abnormality un-
solved, the protection function works in about
1 second to turn off the power.

The protection function worked due to a DC

voltage appearing at the speaker terminal.
DC PRT :000 Z
A cause could be a defect in the amplifier. If
the power is turned on with the abnormality
unsolved, the protection function works in
about 3 seconds to turn off the power.

The protection function worked due to the

temperature limit being exceeded. Causes
TMP PRT:000 Z
could be poor ventillation or a defect related
to the thermal sensor. If the power is turned
on with the abnormality unsolved, the pro-
tection function works in about 1 second to

RX-V750/DSP-AX750/DSP-AX750SE
turn off the power.

RX-V650/HTR-5760
For detection of each protection function (except I-PROTECT)
, refer to DIAG MENU No.11 AD DATA (p.40).

● History of protection function

When the protection function has worked, its history is stored
in memory with a backup. Even if no abnormality is noted while
servicing the unit, an abnormality which has occurred previ-
ously can be defined as long as the backup data has been
stored.
The history of the protection function is cleared when DIAG is
cancelled by selecting PRESET RESERVED (Memory initial-
ized) of DIAG menu No.10 or when the backup data is erased.

● Display during menu operation

During the DIAG operation, the menu list described in
the section of the startup screen appears on the monitor
screen and the function at work is indicated on the FL
indicator. The contents displayed during the function op-
eration are described later in the “Details of DIAG menu”
section.

29
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

● Operation procedure of DIAG MENU and ●

SUB-MENU
There are 17 MENU items, each of which has some SUB-
MENU items.

DIAG menu selection

Select the menu using PROGRAM knob.

SUB-MENU selection w q
Select the sub-menu using w (Forward) and q (Reverse)
keys of PRESET/TUNING (LEVEL).

DIAG menu selection SUB-MENU selection

Reverse Forward

Reverse Forward
RX-V750/DSP-AX750/DSP-AX750SE

DSP-AX750SE only
RX-V650/HTR-5760

● Functions in DIAG mode ●

In addition to the DIAG menu items, functions as listed
below are available.
• Input selection, Multi channel input
• Center/Surround/Surround Back/Sub-woofer level
adjustment
• Muting
• Speaker relay A/B
• Power on/off
• Master volume

* Functions related to the tuner and the set menu are not
available.
* It is possible to confirm Menu No.13 IF STATUS while
keeping the signal process (operation status) of each
DIAG menu by using the input mode key of the main
unit.
●
● Initial settings used to start DIAG
The following initial settings are used when starting
DIAG. When DIAG is canceled, these settings are
restored to those before starting DIAG.

• Master volume: -20dB

• Input: DVD (MULTI CHANNEL INPUT OFF)
• Effect level: 0dB
• Audio mute: OFF
• Speaker relay A/B: ON
• Speaker setting: LARGE / BASS OUT = BOTH
• DIAG menu: DSP THR (1. YSS MARGIN)
30
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

Details of DIAG menu

With full-bit output specified in some modes, it is possible
to execute 0dBFS output without head margin in each
channel.

1. DSP THR
Using the sub-menu, it is possible to select margin outputor
full-bit output.

MARGIN (0 dB)
• This signal is output including the head margin.

1.YSS MARGIN

INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)

RX-V750/DSP-AX750/DSP-AX750SE
Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm

RX-V650/HTR-5760
FULL BIT
• This signal is in digital full bit without including the head
margin.

1.YSS FULL BIT

INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm

INPUT: ANALOG INPUT: PCM/DD/DTS/AAC

AD L/R 4Mbit
4Mbit CODEC
AD L/R
DRAM
CODEC DRAM
AK4628
DIR L/R
AK4628 DIR L/R

L/R L/R
L/R L/R
L/R
L/R SL/SR C/SW
SL/SR C/SW
C/LFE SBL/SBR or PL/PR
C/LFE SBL/SBR or PL/PR
SBL/SBR SL/SR
SBL/SBR SL/SR

PL/PR or SL/SR
PL/PR or SL/SR

POST
POST DECODE PROCESSING
DECODE PROCESSING DIR
DIR DSP DSP
DSP DSP
LC89057 ADAM EVE
LC89057 ADAM EVE

(Shaded items not used in this example)

31
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

2. BYPASS
Using the sub-menu, it is possible to select analog bypass
output or DSP bypass output.

ANALOG BYPASS

2.ANALOG BYPAS
INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB +13.0 dBm -∞ -∞ -∞ -∞

DSP BYPASS

2.DSP BYPASS
INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB -∞ -∞ -∞ -∞ -∞
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

ANALOG BYPASS, DSP BYPASS

INPUT: ANALOG 4Mbit
DRAM

DIR L/R

AD L/R L/R L/R

CODEC
L/R
SL/SR C/SW
AK4628
C/LFE SBL/SBR or PL/PR

SBL/SBR SL/SR

PL/PR or SL/SR

POST
DECODE PROCESSING
DIR DSP DSP
LC89057 ADAM EVE

DSP BYPASS
4Mbit
INPUT: PCM DRAM

DIR L/R

AD L/R L/R L/R

CODEC
L/R
SL/SR C/SW
AK4628
C/LFE SBL/SBR or PL/PR

SBL/SBR SL/SR

PL/PR or SL/SR

POST
DECODE PROCESSING
DIR DSP DSP
LC89057 ADAM EVE

(Shaded items not used in this example)

32
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

3. RAM THROUGH
Using the sub-menu, it is possible to select margin output or
full-bit output.

MARGIN (0 dB)

3.RAM MARGIN
INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm

FULL BIT

3.RAM FULL BIT

INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm

RX-V750/DSP-AX750/DSP-AX750SE
+6.5 dB +6.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm

RX-V650/HTR-5760
RAM THROUGH
4Mbit
INPUT: ANALOG DRAM

DIR L/R

AD L/R L/R L/R

CODEC
L/R
SL/SR C/SW
AK4628
C/LFE SBL/SBR or PL/PR

SBL/SBR SL/SR

PL/PR or SL/SR

POST
DECODE PROCESSING
DIR DSP DSP
LC89057 ADAM EVE

RAM THROUGH 4Mbit

INPUT: PCM/DD/DTS/AAC DRAM

DIR L/R

AD L/R L/R L/R

CODEC
L/R
SL/SR C/SW
AK4628
C/LFE SBL/SBR or PL/PR

SBL/SBR SL/SR

PL/PR or SL/SR

POST
DECODE PROCESSING
DIR DSP DSP
LC89057 ADAM EVE
(Shaded items not used in this example)

33
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

4. PRO LOGIC/NEO6
• Using the sub-menu, it is possible to select Pro Logic I,
Pro Logic II or Neo 6.
• Pro Logic I/II: Auto Input Balance Off

PRO LOGIC I

4.PRO LOGIC I
INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Each ch, -20 dBm +6.5 dB +13.0 dBm -∞ -∞ -∞ -∞
Both ch, -20 dBm +6.5 dB -∞ +15.5 dBm -∞ -∞ -∞

PRO LOGIC II

4.PRO LOGIC II
INPUT: DVD ANALOG
RX-V750/DSP-AX750/DSP-AX750SE

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

RX-V650/HTR-5760

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Each ch, -20 dBm +6.5 dB +13.0 dBm -∞ -∞ -∞ -∞
Both ch, -20 dBm +6.5 dB -∞ +15.5 dBm -∞ -∞ -∞

Neo 6

4. Neo:6
INPUT: DVD ANALOG

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Each ch, -20 dBm +6.5 dB +13.0 dBm -∞ -∞ -∞ -∞
Both ch, -20 dBm +6.5 dB -∞ +15.5 dBm -∞ -∞ -∞

PRO LOGIC/NEO:6 PRO LOGIC/NEO:6

INPUT: ANALOG INPUT: PCM/DD/DTS/AAC
4Mbit
DRAM 4Mbit
AD L/R
CODEC AD L/R DRAM
CODEC
DIR L/R
AK4628 DIR L/R
AK4628

L/R L/R

L/R L/R L/R

SL/SR C/SW
L/R
SL/SR C/SW
C/LFE SBL/SBR or PL/PR

SBL/SBR C/LFE SBL/SBR or PL/PR

SL/SR

SBL/SBR SL/SR
PL/PR or SL/SR

PL/PR or SL/SR
POST
DECODE PROCESSING
DIR DSP DSP POST
DECODE PROCESSING
DIR DSP DSP
LC89057 ADAM EVE
LC89057 ADAM EVE

(Shaded items not used in this example)

34
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

5. SPEAKERS SET
• The input signals are automatically judged in the priority
order of DTS DD AAC PCM Analog (A/D).
• The same signal as the 0dB signal of No.1 DSP THROUGH
is output from the DSP section.

5.FRNT:SML 0dB

5.CENTER:NONE

5.LFE/B:FRNT

5.Pres Mix:5ch

RX-V750/DSP-AX750/DSP-AX750SE
5.Front GAIN 1

RX-V650/HTR-5760
5.Front GAIN 2

5.Zone2 Amp ON

The analog switch settings for each sub-menu are as shown

in the table below.

Sub-menu CENTER SP SUR SP FRONT SP LFE/BASS SUR.B SP

1 FRNT: SML 0 dB LARGE LARGE SMALL SWFR LARGE
2 CENTER: NONE NONE LARGE LARGE SWFR LARGE
3 LFE/B: FRNT SMALL SMALL LARGE FRONT SMALL
4 Pre Mix: 5ch LARGE LARGE LARGE SWFR LARGE
5 Front GAIN 1 LARGE LARGE LARGE SWFR LARGE
6 Front GAIN 2 LARGE LARGE LARGE SWFR LARGE
7 Znone 2 Amp ON LARGE NONE LARGE SWFR NONE/LARGE

LARGE: This mode is used with a speaker with high bass repro-
duction performance (a large unit). Full bandwidth signals
are output.
SMALL: This mode is used with a speaker with low bass reproduc-
tion performance (a small unit). The signals of 90Hz or
less are mixed into the channel specified by LFE/BASS.
NONE: This mode is used with no center speaker.
The center content is reduced by 3dB and distributed to
FRONT L/R.

35
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

INPUT: DVD ANALOG

Sub-menu Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SUR L/R SUR.B L/R (50 Hz)
1 FRONT: SML 0dB Both ch, -20 dBm +6.5 dB +13.0 dBm + 13.0 dBm +13.0 dBm +13.0 dBm +3.5 dBm
2 CENTER: NONE Both ch, -20 dBm +6.5 dB +9.0 dBm -∞ +13.0 dBm +13.0 dBm - 0.5 dBm
3 LFE/B: FRNT (1kHz) Both ch, -20 dBm +6.5 dB -∞ +13.0 dBm +13.0 dBm +13.0 dBm -∞
4 LFE/B: FRNT (50Hz) Both ch, -20 dBm +6.5 dB +25.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm -∞
5 Pres Mix 5ch Both ch, -20 dBm +6.5 dB +18.5 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm
6 Front GAIN 1 Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm
7 Front GAIN 2 Both ch, -20 dBm +6.5 dB +18.5 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 0.5 dBm
8 Zone 2 Amp NO Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm -∞ - 0.5 dBm

6. EXTERNAL INPUT
Using the sub-menu, it is possible to select multi ch input
and 6 ohms/8 ohms.

6CH INPUT_6 (ohms)

RX-V750/DSP-AX750/DSP-AX750SE

6.6CH INPUT_6
RX-V650/HTR-5760

INPUT: MULTI CH INPUT

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 8.5 dBm

6CH INPUT_8 (ohms)

6.6CH INPUT_8
INPUT: MULTI CH INPUT

Input level Volume SPEAKERS OUT (1KHz) SUBWOOFER

FRONT L/R CENTER SURROUND L/R SURROUND BACK L/R (50 Hz)
Both ch, -20 dBm +6.5 dB +13.0 dBm +13.0 dBm +13.0 dBm +13.0 dBm - 8.5 dBm

7. MIC CHECK
The signals inputted through the microphone are output
via A/D-D/A.
The input signal level is displayed in every few seconds.
(0 dB to -90 dB)

7.MIC CHK --dB

36
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

8. VFD CHECK
• This program is used to check the FL display section.
The display condition varies as shown below according
to the sub-menu operation.
• The signals are processed using EFFECT OFF (The L/R
signal is output using ANALOG MAIN BYPASS.)
• The video signal internal/external synchronization
switching is controlled by the microprocessor. When the
initial message is displayed and all the FL segments light
up, it is switched to the internal synchronization but other
than that it is forced to the external synchronization
setting.

DVR/VCR2 DTV/CBL MD/CD-R

VCR-1
SP
V-AUX DVD TUNER CD PHONO
VOLUME
Initial display /
AB
dB

8.VFD CHEC L R

All segments OFF /

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
96
24
DVR/VCR2
SILENT CINEMA
VCR-1 V-AUX
NIGHT ZONE2
DTV/CBL DVD MD/CD-R
PTY HOLD AUTO
TUNER CD
TUNED STEREO MEMORY MUTE VOLUME
PHONO
All segments ON (dimmer 100%) /
MATRIX DISCRETE VIRTUAL SP OPTIMIZER
V DIGITAL AB HiFi DSP
SLEEP PS PTY RT CT EON dB
V EX V PL

1
96/24
V PL V PL x ft DUAL L C R
mS LFE SL SB SR
PCM AAC dB
The 128 pictographs for checking the OSD driver are used
for the video signal output display.

96
24
DVR/VCR2
SILENT CINEMA
VCR-1 V-AUX
NIGHT ZONE2
DTV/CBL DVD MD/CD-R
PTY HOLD AUTO
TUNER CD
TUNED STEREO MEMORY MUTE VOLUME
PHONO
All segments ON (dimmer 50%) /
MATRIX DISCRETE VIRTUAL SP OPTIMIZER
V DIGITAL AB HiFi DSP
SLEEP PS PTY RT CT EON dB
V EX V PL

1
96/24
V PL V PL x ft DUAL L C R
mS LFE SL SB SR
PCM AAC dB

VCR-1 V-AUX DTV/CBL DVD MD/CD-R TUNER CD PHONO

DISCRETE
SILENT CINEMA
SP
NIGHT ZONE2 AUTO STEREO MEMORY VOLUME
Lighting of segments in lattice /
OPTIMIZER
V DIGITAL B
SLEEP PTY CT EON dB
V PL
DUAL L R
mS SL SR
AAC

Lighting in lattice /

Short / Normal /

Segment conditions of the FL driver and the FL tube are

checked by turning ON and OFF all segments. Next, the
operation of the FL driver is checked by using the dimmer
control. Then a short between segments next to each other
is checked by turning ON and OFF all segments alternately
(in lattice). (In the above example, the segments in the sec-
ond row from the top are shorted.)

37
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

9. MANUAL TEST
• The noise generation circuit built into the DSP outputs the
test noise to the channels specified by the sub-menu.
• The noise frequency for LFE is 35 to 250 Hz. Other than
that, the center frequency is 800Hz.

9.TEST ALL

9.TEST FRNT L

9.TEST CENTER

9.TEST FRNT R
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

9.TEST SURR R

9.TEST SB R

9.TEST SB L

9.TEST SURR L

9.TEST PRES L

9.TEST PRES R

9.TEST LFE

38
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

10. FACTORY PRESET

This menu is used to reserve/inhibit initialization of the back-
up RAM (Parameters and set menu contents, etc. of the
sound field program).

PRESET INHIBIT (Initialization inhibited) /

RAM initialization is not executed. Select this sub-menu to protect the values set by
10.PRESET INHI the user.
Note: The protection history will not be erased using PRESET INHIBIT.

PRESET RESERVED (Initialization reserved) /

10.PRESET RSRV Initialization of the back-up RAM is reserved. (Actually, initialization is executed the
next time that the power is turned on.) Select this sub-menu to reset to the original
factory settings or to reset the RAM. Use PRESET RESERVED to erase the protec-
tion history.

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
CAUTION: Before setting to the PRESET RESERVED, write down
the existing preset memory
content of the Tuner in a table as shown below. (This is be-
cause setting to the PRESET RESERVED will cause ALL user
memory contents to be erased.)

Preset group P1 P2 P3 P4 P5 P6 P7 P8
A
B
C
D
E

● PRESET STATIONS /

STATION FM FACTORY PRESET DATA (MHz) STATION AM FACTORY PRESET DATA (kHz)
PAGE NO. U, C R, T, K, A, B, G, L J PAGE NO. U, C, R, T, K A, B, G, L, J
1 87.5 87.50 76.0 1 630 630
2 90.1 90.10 83.0 2 1080 1080
3 95.1 95.10 84.0 3 1440 1440
A/C/E 4 98.1 98.10 86.0 B/D 4 530 531
5 107.9 108.00 90.0 5 1710 1611
6 88.1 88.10 78.0 6 900 900
7 106.1 106.10 88.0 7 1350 1350
8 107.9 108.00 82.1 8 1400 1404

39
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

11. AD DATA
With this sub-menu used, the key scanning, A/D value of the
voltage at the abnormality detect (protection) port, etc. are
displayed. The A/D conversion value is displayed in % (ref-
erence voltage of 5V as 100%). The state before audio sig-
nal processing is kept.
When K0/K1 menu is selected, keys become nonoperable
due to detection of the values of all keys.
However, it is possible to advance to the next sub-menu by
turning the VOLUME of the main unit. When using this func-
tion, note that turning the VOLUME more than 2 clicks will
cause the volume value to change.
* The numeric value in the diagram is for reference.

DC/PS (protection detection)

DC: DC detect protection value
(Normal value: 1 to 13)
PS: Power supply voltageprotection value
(Normal value: 22 to 47)
RX-V750/DSP-AX750/DSP-AX750SE

When the value is outside of the normal range, the pro-

RX-V650/HTR-5760

tection function works to turn off the power.

DC:008 PS:030

THM/Fan
THM: The temperature detected value
When the value is outside of the normal range, the
protection function works to turn off the power.
500% display of the voltage based on the tempera-
ture detected value. Reference voltage: 5V
For the correct value, refer to the table below.

Fan: Not applied to these models.

THM:092 Fan_/_

REC OUT
Not applied to these models.

REC-OUT:186

40
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IMP SW/POWER LIMIT (Impedance/power limiter

detection)
IMP: Not applied to these models.
PL: Power limiter detection value
The voltage value of pin No. 92 of IC502 is displayed,
using 5V/256 as standard.
The port (No. 3) output is controlled by using the
input voltage value of pin No. 92 of IC502.

IMP:8 PL:000

Not applied to these models.

K0/K1
This is the A/D value of the panel key input ports KEY0 and
KEY1 (main microprocessors of the main unit). The table
below shows the A/D value obtained when each key is
pressed. When the value is not within the standard value

RX-V750/DSP-AX750/DSP-AX750SE
range, no correct operation is provided. Referring to the table

RX-V650/HTR-5760
below, check the value of each voltage dividing resistor of
each key, solder condition, etc.

K0:100 K1:100

RX-V750/DSP-AX750/RX-V650 [Table 1] DSP-AX750SE [Table 2]

Display (%) K0 K1 Display (%) K0 K1

TUNING MODE MULTI CH INPUT – MULTI CH INPUT
PURE DIRECT MEMORY PURE DIRECT –
INPUT MODE FM/AM INPUT MODE –
PRESET w PRESET/TUNING/EDIT LEVEL + –
PRESET q RDS PTY MODE LEVEL - –
A/B/C/D/E RDS PTY START NEXT –
TONE CONTROL RDS EON TONE CONTROL –
STRAIGHT RDS MODE STRAIGHT –
SPEAKERS B – SPEAKERS B –
SPEAKERS A – SPEAKERS A –

HTR-5760 [Table 3]

Display (%) K0 K1
TUNING MODE MULTI CH INPUT
INPUT MODE MEMORY
TONE CONTROL PRESET w
STRAIGHT PRESET q
SPEAKERS A A/B/C/D/E
SPEAKERS B FM/AM
– PRESET/TUNING/EDIT
– –
– –
– –

41
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

12. V CONV STATUS

The data received from the video conversion IC (TA1270)
is displayed.
* The numeric value in the diagram is for reference.

LOW BYTE DATA

L:10011100

HIGH BYTE DATA

H:10011000

13. IF STATUS
Using the sub-menu, the status data is displayed one after
another in the hexadecimal notation.
During signal processing, the status before execution of
RX-V750/DSP-AX750/DSP-AX750SE

this menu is maintained.

RX-V650/HTR-5760

* Numeric values in the figure example are for reference.

IS1 (Internal status):

Indicates the status information of the microprocessor.

IS1:3300020000
5th byte
4th byte

3rd byte
2nd byte

1st byte

<1st byte> Digital input/output setting value

Upper 4 bits: REC OUT selected /
lower 4 bits: INPUT selected

Value Choice Preset name

NONE
OPTA V-AUX
OPTB CD
OPTC DVD
OPTD DTV/CBL
COAXA CD
COAXB DVD

42
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

<2nd byte> / <3nd byte> / <4rd byte> /

Fs information of reproduction signal / Audio code mode information of reproduc- Format information of reproduction signal /
tion signal /

<5th byte> /

RX-V750/DSP-AX750/DSP-AX750SE
(*1): Analog processing is used as digital
Signal processing status information / reproduction is not possible because

RX-V650/HTR-5760
of a commercial bit or 4-ch audio rea-
son.

IS2 (Internal status): (Not used in this model)

IS2:0300FFFF

CS1-5: Indicates channel status information of the input sig-

nal). (Not used in this model)

CS1:FFFFFFFFFF CS5:00000000

43
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

BS1-7: Indicates information of the bit stream.

(Not used in this model)

BS1:0000000000 BS7:700D

TI1-2: Indicates information of the bit stream.

(Not used in this model)

TI1:0000000000 TI2:00

MTT: Mute Trigger (Not used in this model)

MTT:00180018FF
RX-V750/DSP-AX750/DSP-AX750SE

14. DSP RAM CHECK

RX-V650/HTR-5760

This menu is used to self-diagnose whether or not the bus

connection for the YSS930 and the external RAM is made
properly.
During signal processing, the status before execution of this
menu is maintained.
The address bus and the data bus are checked and the con-
nection condition is displayed.
When no error is detected, "NoEr" appears on display.

YSS930 BUS CHECK

Display Description
YSS BUS:NoEr WAIT Bus is being checked. /
NoEr No error detected. /
DATA Data bus shorted or open. /
RSCS /RAS or /CAS shorted, or open. /
ADDR Address bus shorted or open. /

YSS948 BUS CHECK

Display Description
SD BUS:NoEr Err Defect /
NoEr No error detected. /

15. PROTECTION SETTING

Not applied to these models.

44
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

16. SOFT SWITCH

This menu is used to switch the function settings on
P.C.B. through the software so as to activate the product.
The protection function follows the P.C.B. settings.
When connected to AC or in the maker preset state, the
unit is initialized to the P.C.B. setting. Display of each
function after initialization varies depending on settings on
P.C.B. The operation mode can be changed by selecting
the sub-menu and then using the STRAIGHT key. With
SOF selected for the SW mode, the settings become
effective.

Sub-menu Function Choice

16.SW :PCB
Switch mode PCB/SOFT
Model setting V450/H5750/V550/
H5760/V650/UNDEF/V750
16.MODEL:V750 Destination J/UC/ATKBG/RL
Tuner NOT/EXIT

RX-V750/DSP-AX750/DSP-AX750SE
Rds NOT/EXIT

RX-V650/HTR-5760
Znone 2 NOT/EXIT
16.DEST :J Video format NTSC/PAL

16.TUNER:EXIST

16.RDS :NOT

16.ZONE2:NOT

16.VIDEO:NTSC

45
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

17. MICROPROCESSOR INFORMATION

The version, checksum and the port specified by the micro-
processor are displayed. The signal is processed using EF-
FECT OFF. The checksum is obtained by adding the data at
every 16 bits for each program area and expressing the re-
sult as a 4-figure hexadecimal data.
* The numeric value in the diagram is for reference.

Version /
VER. Z0403

Checksum /
CHECK SUM:D122

Check of port setting for judging microprocessor function

PORT:00000110
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

Display of AAC function detection port state

AAC PORT:ON

● Details of port setting /

PORT:00000110
Model type 0 (*1)
(*1) Model type
Model type 1 (*1)
Type 2 Type 1 Type 0 Model Type
Model type 2 (*1) 0 0 0 V450
Tuner mode 0 (*2) 0 0 1 HTR-5750
0 1 0 V550
Tuner mode 1 (*2)
0 1 1 HTR-5760
RDS with (1) / without (0) 1 0 0 V650
ZONE2 with (1) / without (0) 1 0 1 UNDEF
1 1 0 V750
VIDEO format: PAL (1) / NTSC (0)

(*2) Tuner mode

Tuner mode 1 Tuner mode 0 FREQ SW Tuner frequency
0 0 – FM: 76.0-90.0MHz/100kHz AM: 531-1611kHz/9kHz
1 0 – FM: 87.50-108.00MHz/50kHz AM: 531-1611kHz/9kHz
0 1 – FM: 87.5-107.9MHz/200kHz AM: 530-1710kHz/10kHz
1 1 Low FM: 87.5-108.0MHz/100kHz AM: 530-1710kHz/10kHz
High FM: 87.50-108.00MHz/50kHz AM: 531-1611kHz/9kHz

(R destination, port 36)

46
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ AMP CHECK

● CONFIRMATION OF IDLING CURRENT ●

1. Immediately after the power is turned on, measure the
voltage across resistor terminals in the column “A” in
the table below and confirm that the measured value is
between 0.1mV and 10.0mV.
2. If the measured voltage exceeds 10.0mV, open (cutoff)
the resistor in the column “B” in the table below and re-
confirm the voltage.
Attention:
If the idling current exceeds 10.0mV after a power ampli-
fier repair, check for a defective component before cut-
ting the resistor.
3. Confirm that the voltage is between 0.2mV and 15.0mV
after 60 minutes.

P.C.B. A CHANNEL B
MAIN (1) P.C.B. R45 FRONT L ch R38
R46 FRONT R ch R39
R50 CENTER R37

RX-V750/DSP-AX750/DSP-AX750SE
R47 SURROUND L ch R34

RX-V650/HTR-5760
R48 SURROUND R ch R35
R49 SURROUND BACK R ch R36
POWER (1) P.C.B. R398 SURROUND BACK L ch R395

0.1mV ~ 10.0mV 0.1mV ~ 10.0mV

(DC) (DC)

Cut off

R38 (FRONT L ch)

R39 (FRONT R ch)
R37 (CENTER)
R34 (SURROUND L ch)
R35 (SURROUND R ch)
R36 (SURROUND BACK R ch)
R395 (SURROUND BACK L ch)
R45 (FRONT L ch)
R46 (FRONT R ch)
R50 (CENTER)
R47 (SURROUND L ch)
R48 (SURROUND R ch)
R49 (SURROUND BACK R ch)
R398 (SURROUND BACK L ch)

<Position for Checking MAIN (1) P.C.B.>

47
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ DISPLAY DATA

V801 : 16-BT-122GNK (WC173100)

^9 q

PATTERN AREA

● PIN CONNECTION

Note 1) F1, F2 ......... Filament

2) NP .............. No Pin
3) NX .............. No Extend Pin
4) P1~P38 ....... Datum Line
5) 1G~16G ...... Grid
RX-V750/DSP-AX750/DSP-AX750SE

● GRID ASSIGNMENT
RX-V650/HTR-5760

48
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

● ANODE CONNECTION

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

49
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

■ IC DATA
IC2 : LC89057W-VF4D-E (DSP P.C.B.)
Digital Audio Interface Transceiver

EMPHA/UO
AUDIO/VO

DGND

DGND
XMCK
RERR

XOUT
DVDD

DVDD
CKST

XIN
INT
36
35
34
33
32
31
30
29
28
27
26
25
DO 37 24 SDIN
DI 38 23 SLRCK
CE 39 22 SBCK
CL 40 21 RDATA
XMODE 41 20 RLRCK
DGND 42 19 DVDD
DVDD 43 LC89057W-VF4D-E 18 DGND
TMCK/PIO0 44 17 RBCK
TBCK/PIO1 45 16 RMCK
TLRCK/PIO2 46 15 AGND
TDATA/PIO3 47 14 AVDD
TXO/PIOE 48 13 LPF

10
11
12
1
2
3
4
5
6
7
8
9
RX-V750/DSP-AX750/DSP-AX750SE

*: Pull-down resistor internal

RXOUT
*RX0
RX1
RX2
RX3
DGND
DVDD
*RX4
RX5/VI
*RX6/UI
DVDD
DGND
RX-V650/HTR-5760

EMPHA/UO

AUDIO/VO

XMODE
INT

CE
CL

CI

32 33 35 40 39 38 41

RXOUT 1

RX0 2 Microcontroller
Cbit, Ubit 37 DO
RX1 3 I/F
RX2 4 36 RERR
Input
RX3 5 Selector
RX4 8
Demodulation Data
& 21 RDATA
RX5/VI Selector
9 Lock Detect
RX6/UI 10
24 SDIN

LPF 13 PLL
16 RMCK
17 RBCK
Clock 20 RLRCK
TMCK/PIO0 44 Selector 22 SBCK
TBCK/PIO1 45 Modulation 1/N
& 23 SLRCK
TLRCK/PIO2 46
Parallel Port
TDATA/PIO3 47

TXO/PIOEN 48
29 28 27 34
XIN

XOUT

XMCK

CKST

50
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC2 : LC89057W-VF4D-E (DSP P.C.B.)

Digital Audio Interface Transceiver

No. Name I/O Function

1 RXOUT O Input bi-phase selection data output pin
2 RX0 I5 TTL-compatible digital data input pin
3 RX1 I Coaxial-compatible digital data input pin with built-in amplifier
4 RX2 I5 TTL-compatible digital data input pin
5 RX3 I5 TTL-compatible digital data input pin
6 DGND Digital GND
7 DVDD Digital power supply
8 RX4 I5 TTL-compatible digital data input pin
9 RX5/VI I5 TTL-compatible digital data / Validity flag input pin for modulation
10 RX6/UI I5 TTL-compatible digital data / User data input pin for modulation
11 DVDD PLL digital power supply
12 DGND PLL digital GND
13 LPF O PLL loop filter connection pin
14 ACDD PLL analog power supply
15 AGND PLL analog GND
16 RMCK O R system clock output pin (256fs, 512fs, XIN, VCO)
17 RBCK O/I R bit clock input/output pin
18 DGND Digital GND
19 DVDD Digital power supply
20 RLRCK O/I R LR clock input/output pin (fs)
21 RDATA O Serial audio data input pin

RX-V750/DSP-AX750/DSP-AX750SE
22 SBCK O S bit clock output pin (32fs, 64fs, 128fs)
23 SLRCK O S LR clock output pin (fs/s, fs, 2fs)

RX-V650/HTR-5760
24 SDIN I5 Serial audio data input pin
25 DGND Digital GND
26 DVDD Digital power supply
27 XMCK O Oscillation amplifier output pin
28 XOUT O Crystal resonator connection output pin
29 XIN I Crystal resonator connection, external supply clock input pin (24.576 MHz or 12.288 MHz)
30 DVDD Digital power supply
31 DGND Digital GND
32 EMPHA/UO I/O Emphasis information / U data output / Chip address setting pin
33 AUDIO/VO I/O Non-PCM output / V flag output / Chip address setting pin
34 CKST I/O Clock switch transition period signal / Demodulation master or slave function switch pin
35 INT I/O Microcontroller interrupt output / Modulation or general-purpose I/O switch pin
36 RERR O PLL clock error, data error flag output
37 DO O Microcontroller I/F read data output pin (3-state)
38 DI I5 Microcontroller I/F write data input pin
39 CE I5 Microcontroller I/F chip enable input pin
40 CL I5 Microcontroller I/F clock input pin
41 XMODE I5 System reset input pin
42 DGND Digital GND
43 DVDD Digital power supply
44 TMCK/PIO0 I/O Modulation 256fs system clock input / General-purpose I/O input/output pin
45 TMCK/PIO1 I/O Modulation 64fs bit clock input / General-purpose I/O input/output pin
46 TLRCK/PIO2 I/O Modulation fs clock input / General-purpose I/O input/output pin
47 TLRCK/PIO3 I/O Modulation serial audio data input / General-purpose I/O input/output pin
48 TXO/PIOEN O/I Modulation data output / General-purpose I/O enable input pin

1) Input/output I or O = -0.3 to 3.6V, I5 = -0.3 to 5.5V

2) Pins 32 and 33 are latch address setting input pins when pin 41 = "L".
3) Pin 34 is a demodulation function master or slave setting input pin when pin 41 = "L".
4) Pin 35 is a modulation function or general-purpose I/O function switch setting input pin when pin 41 = "L".
5) Perform ON/OFF for all power supplies with the same timing as a latch-up countermeasure.

51
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC5 : YSS948-V (DSP P.C.B.)

ADAM

MEMA12
MEMA14
MEMA16
MEMD7
MEMD6
MEMD5
MEMD4

MEMD3
MEMD2
MEMD1
MEMD0

MEMA0
MEMA1
MEMA2

MEMA3
MEMA4
MEMA5
MEMA6

MEMA7
VDD2
VDD2

VDD1

VDD2

VDD2
VDD2

VDD1

VDD2
VDD2
VSS
VSS

VSS
VSS

VSS
VSS

VSS
VSS
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
nMEMCE 109 72 MEMA15
MEMA10 110 71 VDD2
nMEMOE 111 70 VDD2
MEMA18 112 69 VSS
STATUS0 113 68 nMEMWE
STATUS1 114 67 MEMA11
STATUS2 115 66 MEMA9
STATUS3 116 65 MEMA8
VSS 117 64 VDD2
VSS 118 63 VDD2
VDD2 119 62 VSS
VDD2 120 61 VSS
VDD1 121 60 VDD1
MISO 122 59 MEMA13
VSS 123 58 MEMA17
MISI 124 57 IOPORT7
MISCK 125 56 IOPORT6
nMICS 126 55 IOPORT5
VDD2 127 54 IOPORT4
VDD2 128 53 IOPORT3
VSS 129 52 IOPORT2
VSS 130 51 VDD2
nIC 131 50 VDD2
TEST 132 49 VSS
ZEROFLG 133 48 VSS
nINT 134 47 IOPORT1
nMUTE 135 46 IOPORT0
VDD1 136 45 VDD1
VDD2 137 44 SDO3
VDD2 138 43 SDO2
RX-V750/DSP-AX750/DSP-AX750SE

VSS 139 42 VSS

VSS 140 41 VSS
AVSSR 141 40 SDO1
RX-V650/HTR-5760

AVDDR 142 39 SDO0

AHVDD 143 38 SDOMCK
AHVDDG 144 37 SDOWCK
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
AHVSS
AHVSSG
DVSS
DVDD
VDD2
VDD2
VSS
VSS
VDD1
STATUS4
STATUS5
STATUS6
STATUS7
VSS
VDD2
TEST
TEST
XI
XO
VSS
VSS
VDD2
VDD2
TEST
TEST
SDI3
SDI2
SDI1
SDI0
SDIWCK
SDIBCK
SDIMCK
VDD1
SDOBCK
VSS
VDD2
IOPORT7-0
MISO
MISCK
nMICS
MISI

ClkGen MicomIF
XI

XO PLL nMUTE
ZEROFLG
Firmware
download circuit Register

nIC Internal operation clock nINT

Result of status change detection STATUS7-0

TEST
Bypass
To each control section
SDI
SDO
Decoder
Output channel
Delay control

Delay control
ZERO detect
conversion

conversion
Detector

User mute
Format

SDI3-0
Format
change

SDO3-0
DSP
Automatic

memory
mute

SDIMCK SDOMCK
SDIBCK SDOBCK
SDIWCK SDOWCK
Division
switching

EMC
MEMA18-0

MEMD7-0

nMEMWE
nMEMCE
nMEMOE

52
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC5 : YSS948-V (DSP P.C.B.)

ADAM

Classification No. Name I/O Function

Power Supply 9 VDD1 - Power supply terminal for terminal block circuit (Typ. 3.3V)
33
45
60
85
100
121
136
5 VDD2 - Power supply terminal for Internal Circuit (Typ. 1.2V)
6
15
22
23
36
50
51
63
64
70

RX-V750/DSP-AX750/DSP-AX750SE
71
79

RX-V650/HTR-5760
80
88
89
95
107
108
119
120
127
128
137
138
142 AVDDR - Power supply terminal 1 for PLL section (Typ. 3.3V)
143 AHVDD - Power supply terminal 2 for PLL section (Typ. 3.3V)
144 AHVDDG - Power supply terminal 3 for PLL section (Typ. 3.3V)
4 DVDD - Internal power supply terminal for PLL section (Typ. 1.2V)
7 VSS - Ground terminal
8
14
20
21
35
41
42
48
49
61
62
69
77
78
86
87
93

53
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC5 : YSS948-V (DSP P.C.B.)

ADAM

Classification No. Name I/O Function

Power Supply 94 VSS - Ground terminal
105
106
117
118
123
129
130
139
140
1 AHVSS Ground terminal 2 for PLL section
2 AHVSSG Ground terminal 3 for PLL section
3 DVSS Ground terminal 4 for PLL section
141 AVSSR Ground terminal 1 for PLL section
Initial Clear 131 nIC - Hardware reset input terminal
Clock 18 XI I Clock input terminal
19 XO O Clock output terminal for crystal oscillator oscillation
µ-COM Interface 126 nMICS Is Chip select input terminal for µ-COM interface
125 MISCK Is Clock input terminal for µ-COM interface
Address, read/write control, data input terminal for µ-COM interface
RX-V750/DSP-AX750/DSP-AX750SE

124 MISI I
122 MISO Ot Data output terminal for µ-COM interface
RX-V650/HTR-5760

Audio Interface 32 SDIMCK Is Master clock input terminal on input side of audio interface
31 SDIBCK Is Bit clock input/output terminal on input side of audio interface
30 SDIWCK I Word clock terminal on input side of audio interface
26 SDI3 I Serial data input terminal 3 for Audio Interface
27 SDI2 I Serial data input terminal 2 for audio interface
28 SDI1 I Serial data input terminal 1 for audio interface
29 SDI0 I Serial data input terminal 0 for audio interface
38 SDOMCK Ot Master clock output terminal on output side of audio interface
34 SDOBCK Is/O Bit clock input/output terminal on output side of audio interface
37 SDOWCK I/O Word clock input/output terminal on output side of audio interface
44 SDO3 O Serial data output terminal 3 for audio interface
43 SDO2 O Serial data output terminal 2 for audio interface
40 SDO1 O Serial data output terminal 1 for audio interface
39 SDO0 O Serial data output terminal 0 for audio interface
External Memory Interface 112 MEMA18 O External memory address output terminals 18 to 0
58 MEMA17
73 MEMA16
72 MEMA15
74 MEMA14
59 MEMA13
75 MEMA12
67 MEMA11
110 MEMA10
66 MEMA9
65 MEMA8
76 MEMA7
81 MEMA6
82 MEMA5
83 MEMA4
84 MEMA3
90 MEMA2
91 MEMA1
92 MEMA0
104 MEMD7 I/O External memory data input/output terminals 7 to 0

54
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC5 : YSS948-V (DSP P.C.B.)

ADAM

Classification No. Name I/O Function

External Memory Interface 103 MEMD6 I/O External memory data input/output terminals 7 to 0
102 MEMD5
101 MEMD4
99 MEMD3
98 MEMD2
97 MEMD1
96 MEMD0
109 nMEMCE O External memory chip select output terminal
111 nMEMOE O External memory output enable output terminal
68 nMEMWE O External memory write enable output terminal
Status Port 134 nINT O Interrupt request output terminal
135 nMUTE O Auto mute period output terminal
133 ZEROFLG O Continuous zero data input detect terminal
13 STATUS7 O Status data output Terminals 7 to 0
12 STATUS6
11 STATUS5
10 STATUS4
116 STATUS3
115 STATUS2

RX-V750/DSP-AX750/DSP-AX750SE
114 STATUS1
113 STATUS0

RX-V650/HTR-5760
General Purpose I/O Port 57 IOPORT7 I(+)/O General Purpose Input/Output Port Terminals 7 to 0
56 IOPORT6
55 IOPORT5
54 IOPORT4
53 IOPORT3
52 IOPORT2
47 IOPORT1
46 IOPORT0
Test 16 TEST Is Test Terminal
17
24
25
132

I/O symbols
I: Digital Input
Is: Schmidt Input
O: Digital Output
Ot: 3-State Output
I/O: Digital Input/Output
I(+)/O: Pulled up for input, not pulled up for output

55
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC7 : YSS930-SZ (DSP P.C.B.)

DSP

RAMWEN
RAMOEN

RAMD15
RAMD14
RAMD13

RAMD12
RAMD11
RAMD10
RAMA10
RAMA9
RAMA3
RAMA4
RAMA2
RAMA5

RAMA1
RAMA6
RAMA0
RAMA7
RAMA8
RASN

CASN
VDD2

VDD1

VDD1

VSS
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
VSS 76 50 VDD2
RAMA11 77 49 RAMD9
RAMA12 78 48 RAMD8
RAMA13 79 47 RAMD7
RAMA14 80 46 RAMD6
RAMA15 81 45 RAMD5
RAMA16 82 44 RAMD4
RAMA17 83 43 RAMD3
VDD1 84 42 RAMD2
/CS 85 41 RAMD1
SO 86 40 RAMD0
SI 87 39 VDD1
SCK 88 38 IOPORT19
/IC 89 37 IOPORT18
SDWCK 90 36 IOPORT17
SDBCK 91 35 IOPORT16
SDI7 92 34 SDO7
SDI6 93 33 SDO6
SDI5 94 32 SDO5
SDI4 95 31 SDO4
SDI3 96 30 SDO3
SDI2 97 29 SDO2
SDI1 98 28 SDO1
SDI0 99 27 SDO0
VDD2 100 26 VSS
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
RX-V750/DSP-AX750/DSP-AX750SE

VSS
XO
XI
IOPORT0
IOPORT1
IOPORT2
IOPORT3
IOPORT4
IOPORT5
IOPORT6
IOPORT7
AVSS
CPO
AVDD
VDD1
(NC)
IOPORT8
IOPORT9
IOPORT10
IOPORT11
IOPORT12
IOPORT13
IOPORT14
IOPORT15
VDD2
RX-V650/HTR-5760

IOPORT19~0
SCK
/CS

SO

SI

SDBCKO

SDWCKO

MICROPROCESSOR
INTERFACE
PROGRAM COEFFICIENT ADDRESS
RAM RAM RAM
WCKOP
BCKOP

CONTROL REGISTER 50 bit * 1024 word 16 bit * 1024 word 17 bit * 256 word
MPLOAD

CONTROL
SIGNALS
SDBCK
SDWCK
OVF
END

ZEROF7R-0L

SDI0 SDO0
SDO INTERFACE

SDI1
SDI INTERFACE

SDO1
32 bit * 1024 word

SDI2 SDO2
DATA RAM

SDI3 SDO3
32 bit DSP Core
SDI4 SDO4
SDI5 SDO5
SDI6 SDO6
SDI7 SDO7

DSP INTERNAL
OPERATING CLOCK
CK (30.72~40.96MHz) EXTERNAL RAM
INTERFACE
PLL
XO
XI
CPO

RAMD15~0
CASN
RASN
RAMWEN
RAMOEN
RAMA17~0

56
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
IC7 : YSS930-SZ (DSP P.C.B.) IC7 : YSS930-SZ (DSP P.C.B.)
DSP DSP

No. Name I/O Function No. Name I/O Function

1 VSS - Digital ground terminal 57 RAMD14 I+/O Data input/output terminal 14 for external memory
2 XO O Terminal for connecting crystal oscillator 58 RAMD15 I+/O Data input/output terminal 15 for external memory
3 XI I Terminal for connecting crystal oscillator (12.288 ~ 15.0MHz) 59 CASN O Column address strobe output terminal for external DRAM
4 IOPORT0 I+/O General purpose input/output terminal, SDO0 Lch zero-flag output terminal, input/output terminal for branching program conditions 60 RAMWEN O Write enable output terminal for external memory
5 IOPORT1 I+/O General purpose input/output terminal, SDO0 Rch zero-flag output terminal, input/output terminal for branching program conditions 61 RAMOEN O Output enable output terminal for external memory
6 IOPORT2 I+/O General purpose input/output terminal, SDO1 Lch zero-flag output terminal, input/output terminal for branching program conditions 62 RASN O Low address strobe output terminal for external DRAM
7 IOPORT3 I+/O General purpose input/output terminal, SDO1 Rch zero-flag output terminal, input/output terminal for branching program conditions 63 RAMA8 O Address output terminal 8 for external memory
8 IOPORT4 I+/O General purpose input/output terminal, SDO2 Lch zero-flag output terminal, input/output terminal for branching program conditions 64 RAMA7 O Address output terminal 7 for external memory
9 IOPORT5 I+/O General purpose input/output terminal, SDO2 Rch zero-flag output terminal, input/output terminal for branching program conditions 65 RAMA0 O Address output terminal 0 for external memory
10 IOPORT6 I+/O General purpose input/output terminal, SDO3 Lch zero-flag output terminal, input/output terminal for branching program conditions 66 RAMA6 O Address output terminal 6 for external memory
11 IOPORT7 I+/O General purpose input/output terminal, SDO3 Rch zero-flag output terminal, input/output terminal for branching program conditions 67 RAMA1 O Address output terminal 1 for external memory
12 AVSS - Analog ground terminal (for PLL) 68 VDD1 - +3.3V digital power supply (for input/output terminal)
13 CPO A Terminal for connecting PLL filter 69 RAMA5 O Address output terminal 5 for external memory
14 AVDD - +2.5V digital power supply (for PLL) 70 RAMA2 O Address output terminal 2 for external memory
15 VDD1 - +3.3V digital power supply (for input/output terminal) 71 RAMA4 O Address output terminal 4 for external memory
16 (NC) - (Unconnected) 72 RAMA3 O Address output terminal 3 for external memory
17 IOPORT8 I+/O General purpose input/output terminal, SD04 Lch zero-flag output terminal 73 RAMA9 O Address output terminal 9 for external memory
18 IOPORT9 I+/O General purpose input/output terminal, SD04 Rch zero-flag output terminal 74 RAMA10 O Address output terminal 10 for external memory
19 IOPORT10 I+/O General purpose input/output terminal, SD05 Lch zero-flag output terminal 75 VDD2 - +2.5V digital power supply (for internal circuit)
20 IOPORT11 I+/O General purpose input/output terminal, SD05 Rch zero-flag output terminal 76 VSS - Digital ground terminal
21 IOPORT12 I+/O General purpose input/output terminal, SD06 Lch zero-flag output terminal, input terminal 0 for chip address setting 77 RAMA11 O Address output terminal 11 for external memory
22 IOPORT13 I+/O General purpose input/output terminal, SD06 Rch zero-flag output terminal, input terminal 1 for chip address setting 78 RAMA12 O Address output terminal 12 for external memory
23 IOPORT14 I+/O General purpose input/output terminal, SD07 Lch zero-flag output terminal, input terminal 2 for chip address setting 79 RAMA13 O Address output terminal 13 for external memory
24 IOPORT15 I+/O General purpose input/output terminal, SD07 Rch zero-flag output terminal, input terminal 3 for chip address setting 80 RAMA14 O Address output terminal 14 for external memory
25 VDD2 - +2.5V digital power supply (for internal circuit) 81 RAMA15 O Address output terminal 15 for external memory
26 VSS - Digital ground terminal 82 RAMA16 O Address output terminal 16 for external memory
27 SDO0 O PCM output terminal 83 RAMA17 O Address output terminal 17 for external memory
28 SDO1 O PCM output terminal 84 VDD1 - +3.3V digital power supply (for input/output terminal)
29 SDO2 O PCM output terminal 85 /CS Is Microprocessor interface chip select input terminal
30 SDO3 O PCM output terminal 86 SO Ot Microprocessor interface data output terminal
31 SDO4 O PCM output terminal 87 SI Is Microprocessor interface data input terminal
32 SDO5 O PCM output terminal 88 SCK Is Microprocessor interface clock input terminal
33 SDO6 O PCM output terminal 89 /IC Is Initial clear input terminal
34 SDO7 O PCM output terminal 90 SDWCK I Word clock (fs) input terminal for SDI/SDO interface
35 IOPORT16 I+/O General purpose input/output terminal, overflow detect output terminal 91 SDBCK Is Bit clock (64fs) input terminal for SDI/SDO interface
36 IOPORT17 I+/O General purpose input/output terminal, program end detect output terminal 92 SDI7 I PCM input terminal
37 IOPORT18 I+/O General purpose input/output terminal, 64fs clock output terminal 93 SDI6 I PCM input terminal
38 IOPORT19 I+/O General purpose input/output terminal, fs clock output terminal 94 SDI5 I PCM input terminal
39 VDD1 - +3.3V digital power supply (for input/output terminal) 95 SDI4 I PCM input terminal
40 RAMD0 I+/O Data input/output terminal 0 for external memory 96 SDI3 I PCM input terminal
41 RAMD1 I+/O Data input/output terminal 1 for external memory 97 SDI2 I PCM input terminal
42 RAMD2 I+/O Data input/output terminal 2 for external memory 98 SDI1 I PCM input terminal
43 RAMD3 I+/O Data input/output terminal 3 for external memory 99 SDI0 I PCM input terminal
44 RAMD4 I+/O Data input/output terminal 4 for external memory 100 VDD2 - +2.5V digital power supply (for internal circuit)
45 RAMD5 I+/O Data input/output terminal 5 for external memory
46 RAMD6 I+/O Data input/output terminal 6 for external memory
Is: Schmidt trigger input terminal
47 RAMD7 I+/O Data input/output terminal 7 for external memory
I+: Input terminal with pull-up resistor
48 RAMD8 I+/O Data input/output terminal 8 for external memory
O: digital output terminal
49 RAMD9 I+/O Data input/output terminal 9 for external memory Ot: Tri-state digital output terminal
50 VDD2 - +2.5V digital power supply (for internal circuit) A: Analog terminal
51 VSS - Digital ground terminal
52 RAMD10 I+/O Data input/output terminal 10 for external memory
53 RAMD11 I+/O Data input/output terminal 11 for external memory
54 RMD12 I+/O Data input/output terminal 12 for external memory
55 VDD1 - +3.3V digital power supply (for input/output terminal)
56 RAMD13 I+/O Data input/output terminal 13 for external memory

57
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
IC502 : M30622MHP-161FP (FUNCTION P.C.B.) IC502 : M30622MHP-161FP (FUNCTION P.C.B.)
16 bit µ-COM (CPU) 16 bit µ-COM (CPU)

P21/A1/(/D1/D0)
P22/A2/(/D2/D1)
P23/A3/(/D3/D2)
P24/A4/(/D4/D3)
P25/A5/(/D5/D4)
P26/A6/(/D6/D5)
P27/A7/(/D7/D6)
P20/A0/(/D0/—)

P30/A8(/—/D7)
P15/D13/INT3
P16/D14/INT4
P17/D15/INT5
No. Port Name I/O Function

P12/D10

P14/D12

P32/A10

P34/A12
P35/A13
P36/A14
P37/A15
P40/A16
P41/A17
P42/A18
P43/A19
P13/D11

P33/A11
P10/D8

P31/A9
P11/D9
35 TXD0 SDTN SO RDS/OSD / S/P Conversion IC TxD

VCC
VSS
36 RXD0 SDRN SI/(IPU) RDS RxD / FREQ SW(Dest R)
37 CLK0 SCKN SCK RDS/OSD / S/P Conversion IC Clock
38 P60 ICEV O Electronic Volume Reset

80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
P07/D7 81 50 P44/CS0
39 P57 /HP I(IPU) HEAD PHONE Detect
P06/D6 82 49 P45/CS1 40 P56 /MTHP O HEAD PHONE Mute Output
P05/D5 83 48 P46/CS2 41 /EMP GND For Flash Writing (LO)
P04/D4 84 47 P47/CS3
P03/D3 85 46 P50/WRL/WR
42 P54 /MTCT O MUTE Center
P02/D2 86 45 P51/WRH/BHE 43 P53 /MTSW O MUTE SW
P01/D1 87 44 P52/RD 44 P52 /MTZ2 O/I Zone 2 MUTE / ZONE2 Present/Absent Discriminate
P00/D0 88 43 P53/BCLK
P107/AN7/K13 89 42 P54/HLDA
45 P51 /MTFS O MUTE Front/Surround , Pre OUT
P106/AN6/K12 90 41 P55/HOLD 46 /CE I For Flash Writing (HI)
P105/AN5/K11 91 40 P56/ALE 47 P47 CKZ2 SCK Zone2 Selector Clock
P104/AN4/K10 92 39 P57/RDY/CLKOUT
P103/AN3 93 38 P60/CTS0/RTS0
48 P46 DTZ2 SO Zone2 Selector DATA
P102/AN2 94 37 P61/CLK0 49 P45 CESEL O Selector IC Enable
P101/AN1 95 36 P62/RXD0 50 P44 CKBD SCK BD3841 Clock
AVSS 96 35 P63/TXD0
P100/AN0 97 34 P64/CTS1/RTS1/CTS0/CLKS1
51 P43 DTBD SO BD3841 DATA
VREF 98 33 P65/CLK1 52 P42 CKCV SCK VIDEO Conversion Clock
AVCC 99 32 P66/RXD1 53 P41 DTCV SO VIDEO Conversion DATA
P97/ADTRG/SIN4 100 31 P67/TXD1
54 P40 CPNTD I Component Signal Detector (DVD)
10

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
11
1
2
3
4
5
6
7
8
9

55 P37 CPNTT I Component Signal Detector (D-TV)

56 P36 SVIDD I S-Video Signal Detector
57 P35 CEB O S/P Conversion Enable
P96/ANEX1/SOUT4
P95/ANEX0/CLK4
P94/DA1/TB4IN
P93/DA0/TB3IN
P92/TB2IN/SOUT3
P91/TB1IN/SIN3
P90/TB0IN/CLK3
BYTE
CNVSS
P87/XCIN
P86/XCOUT
RESET
XOUT
VSS
XIN
VCC
P85/NMI
P84/INT2
P83/INT1
P82/INT0
P81/TA4IN/U
P80/TA4OUT/U
P77/TA3IN
P76/TA3OUT
P75/TA2IN/W
P74/TA2OUT/W
P73/CTS2/RTS2/TA1IN/V
P72/CLK2/TA1OUT/V
P71/RXD2/TA0IN/TB5IN
P70/TXD2/TA0OUT
58 P34 CES O/I OSD Enable/N_P Format
59 P33 RDSE O/I RDS Enable, RDS Present/Absent
60 P32 CEP O/I PLL IC Enable / Destination Discriminate 1
61 P31 SDTP SO PLL IC TxD/ TUNER Present/Absent (SE) Discriminat
62 Vcc Vcc Vcc(BU) u-COM power supply, +5V
63 P30 SCKP O/I PLL IC Clock / Destination Discriminate 0
64 Vss Vss Vss u-COM Ground
65 P27 SDRP I(IPU) PLL IC RxD
No. Port Name I/O Function 66 P26 TMT O TUNER MUTE
1 SOUT4 DTFD SO FL Driver TxD 67 P25 TUNED I(IPU) TUNED
2 CLK4 CKFD SCK FL Driver CLOCK 68 P24 /ST I(IPU) TUNER /ST
3 DA1 LC1 DA Power limiter control 69 P23 PRY O Power Relay Output
4 DA0 FAN DA FAN control 70 P22 SBRY O Surround Back SP Relay Output
5 SOUT3 SDM SO YSS TxD 71 P21 ERY O Surround SP Relay Output
6 SIN3 SDD SI YSS RxD 72 P20 MBRY O Front B SP Relay Output
7 CLK3 SCK SCK YSS CLOCK 73 INT5 PDET INT Power Down DETECT INT
8 BYTE BYTE Vss Vss: when single chip mode is used 74 INT4 PSW INT Standby SW INPUT
9 CNVss CNVss Vss/Vcc Vss: when single chip mode is used, Vcc: when flash writing is used 75 INT3 REM INT Remote Control Input
10 P87 /CSY O YSS CE 76 P14 MARY O Front A SP Relay Output
11 P86 /ICY O YSS RESET 77 P13 Z2RY O Zone 2 Relay Output
12 RESET RESET I Reset 78 P12 /4ohm O IMPEDANCE Control
13 Xout Xout Oscillator Out 79 P11 8/4 I IMPEDANCE Select SW Detect
14 Vss Vss Vss u-COM Ground 80 P10 PRI I Protection Excess-current Detect
15 Xin Xin 16MHz Oscillator In 81 P07 PSV O Power Save
16 Vcc Vcc Vcc(BU) u-COM Power Supply, +5V 82 P06 /PURD O Pure Direct LED/DSP&VIDEO PowerOFF
17 NMI NMI Vcc(BU) Connect to Vcc because it is unused. 83 P05 /BLK O FL Driver Light Off
18 INT2 INTADM INT 84 P04 ISA I(IPU) INPUT SEL. Rotaly A
19 INT1 INTDIR INT 85 P03 ISB I(IPU) INPUT SEL. Rotaly B
20 INT0 VSY INT Vertical Synchronize Detect 86 P02 TONEA I(IPU) Tone Con. Rotaly A
21 P81 /CSDIR O DIR CS 87 P01 TONEB I(IPU) Tone Con. Rotaly B
22 P80 /CSADM O ADM CS 88 P00 VRA I(IPU) Volume Rotaly A
23 P77 /CSDAC O DAC CS 89 P107 VRB I(IPU) Volume Rotaly B
24 P76 /ICDIR O DIR RESET 90 AN6 PRV AD Protection Power Supply Voltage Detect
25 P75 /ICADM O ADM RESET 91 AN5 PRD AD Protection DC Detect
26 P74 VBIT I 92 AN4 PLDET AD POWER LIMITTER DETECT
27 P73 /CEEEP O EEPROM CE 93 AN3 THM AD Temperature Detect
28 CLK2 CKEV SCK Electronic Volume IC Clock 94 AN2 ADKEY0 AD Key AD Input 0
29 P71 CEEV O Electronic Volume IC Enable 95 AN1 ADKEY1 AD Key AD Input 1
30 TXD2 DTEV SO Electronic Volume IC Data 96 Avss Avss Vss AD Ground
31 TXD1 TXDF SO Flash ROM TxD / Selector IC Data 97 AN0 MODEL AD Model Discriminate
32 RXD1 RXDF SI Flash ROM RxD 98 Vref Vref (+5v) AD Reference
33 CLK1 CLKF SCK Flash ROM Clock / selector IC Clock 99 Avcc Avcc Vcc(BU) AD Power Supply
34 P64 BSY O Flash BUSY Signal Output 100 P97 CEFD O FL Driver CE

58
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
● Key Input (A-D) Pull-Up Resistance 10 k-ohms

RX-V750/DSP-AX750/RX-V650

ohm 0 +1.0k +1.0k +1.5k +2.2k +3.3k +4.7k +6.8k +10.0k +22.0k
V — 0.3 — 0.65 — 1.05 — 1.55 — 2.05 — 2.65 — 3.15 — 3.6 — 4.1 — 4.6
ADKEY0 TUNING PUER INPUT PRESET PRESET A/B/C/D/E TONE STRAIGHT SPEAKERS SPEAKERS
(94Pin, AN2) MODE DIRECT MODE > < CONTROL B A
ADKEY1 MULTI CH MEMORY FM/AM PRESET/TUINING PTY PTY EON RDS - -
(95Pin, AN1) INPUT EDIT MODE START MODE

DSP-AX750SE

ohm 0 +1.0k +1.0k +1.5k +2.2k +3.3k +4.7k +6.8k +10.0k +22.0k
V — 0.3 — 0.65 — 1.05 — 1.55 — 2.05 — 2.65 — 3.15 — 3.6 — 4.1 — 4.6
ADKEY0 - PUER INPUT LEVEL LEVEL NEXT TONE STRAIGHT SPEAKERS SPEAKERS
(94Pin, AN2) DIRECT MODE + - CONTROL B A
ADKEY1 MULTI CH - - - - - - - - -
(95Pin, AN1) INPUT

HTR-5760

ohm 0 +1.0k +1.0k +1.5k +2.2k +3.3k +4.7k +6.8k +10.0k +22.0k
V — 0.3 — 0.65 — 1.05 — 1.55 — 2.05 — 2.65 — 3.15 — 3.6 — 4.1 — 4.6
ADKEY0 TUNING INPUT TONE STRAIGHT SPEAKERS SPEAKERS - - - -
(94Pin, AN2) MODE MODE CONTROL A B
ADKEY1 MULTI CH MEMORY PRESET PRESET A/B/C/D/E FM/AM PRESET/TUINING - - -
(95Pin, AN1) INPUT > < EDIT

59
 RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760

IC606 : LC74781-9798 (FUNCTION P.C.B.) IC606 : LC74781-9798 (FUNCTION P.C.B.)

On-screen Display Controller On-screen Display Controller

Pin No. Symbol Terminal name Function

1 VSS1 Ground terminal Connection to GND (Digital system ground terminal)
2 XTAL IN Crystal oscillation Terminal to connect the crystal of the crystal oscillator for internal synchronous
VSS1 1 24 VDD1 terminal signal generation and a capacitor or to input an external clock. (2fsc or 4fsc)
3 XTAL OUT
XTAL IN 2 23 RST
Crystal oscillation input Switching terminal between the mode to input a clock externally and the mode
4 CTRL1
XTAL OUT 3 22 CTRL3
switching terminal for crystal oscillation. [L] = Crystal oscillation, [H] = External clock input
CTRL1 4 21 CTRL2
Blank output terminal Terminal to output the blank signal (character and bordering OR signal) (MOD0 :
5 BLANK
BLANK 5 20 SEP IN
complex synchronous signal output at [H]). When resetting (RST terminal = [L]),
OSC IN 6 19 SEP OUT
a crystal oscillation clock is output (but not when resetting by the command).
OSC OUT 7 18 SEPC
6 OSC IN LC oscillation terminal Terminal to connect the coil of the oscillator for character output dot clock
CHARA 8 17 SYN IN
7 OSC OUT generation and a capacitor.
CS 9 16 VDD1
8 CHARA Character output terminal Terminal to output a character signal (MOD0 : It becomes an output terminal to
SCLK 10 15 CV IN
judge the external synchronous signal at [H] and outputs the result after judging
SIN 11 14 NC
existence of the external synchronous signal. When a synchronous signal exists,
VDD2 12 13 CV OUT
[H] is output.) When resetting (RST terminal = [L]), a dot clock (LC oscillation) is
output (but it is not output when reset by the command.)
9 /CS Enable input terminal Serial data input enable input terminal. The serial data input becomes enable at
[L]. A pull-up resistor is built in (hysteresis input).
10 SCLK Clock input terminal Input terminal of clock for serial data input.
A pull-up resistor is built in (hysteresis input).
11 SIN Data input terminal Serial data input terminal. A pull-up resistor is built in (hysteresis input).
12 VDD2 Power supply terminal Power supply terminal for complex image signal level adjustment (Power supply
CS SERIAL
8 BIT
for analog system)
LATCH
SIN +
13 CV OUT Video signal output terminal Output terminal for complex image signal.
COMMAND
PARALLEL
DECODER
14 NC Connected to GND or unconnected.
SCLK CONVERSION
HORIZONTAL
VERTICAL DIRECTION
HORIZONTAL VERTICAL FLASHING &
DISPLAY
RAM 15 CV IN Video signal input terminal Input terminal for complex image signal.
DIRECTION DISPLAY DISPLAY CONVERSION WRITE
CHARACTER SIZE CONTROL
CHARACTER SIZE POSITION POSITION CONTROL ADDRESS
REGISTER
REGISTER
REGISTER REGISTER REGISTER
REGISTER
COUNTER 16 VDD1 Power supply terminal Power supply terminal (+5V : power supply for digital system)
RST 17 SYN IN Synchronous separation Video signal input terminal of the built-in synchronous separation circuit (When
HORIZONTAL VERTICAL HORIZONTAL VERTICAL FLASHING &
CONVERSION DECODER
DISPLAY circuit input terminal the built-in synchronous separation circuit is not used, it becomes a horizontal
SIZE COUNTER SIZE COUNTER DOT COUNTER DOT COUNTER RAM
CONTROL
CIRCUIT synchronous signal input or a complex synchronous signal input.)
VDD1
18 SEP C Synchronous separation Terminal to monitor built-in synchronous separation circuit bias voltage.
circuit bias voltage terminal
VSS1
19 SEP OUT Complex synchronous Terminal to output a complex synchronous signal of built-in synchronous
HORIZONTAL
DISPLAY POSITION
VERTICAL
DISPLAY POSITION
signal output terminal separation circuit ([H] when internally synchronized at MOD1 : [H], [L] output
DETECTION DETECTION
VDD2 when externally synchronized) (When the built-in synchronous separation circuit
is not used, SYNIN input signal is output.)
CHARACTER LINE
CHARA CONTROL CONTROL 20 SEP IN Vertical synchronous Terminal to input a vertical synchronous signal by integrating the output signal of
COUNTER COUNTER DECODER
signal input terminal SEPOUT terminal. Connect the integration circuit between SEPOUT terminals.
SYNCHRONOUS
DISTINCTION
Fix it to VDD1 when not used.
FONT ROM 21 CTRL2 NTSC/PAL-M switching Pin setting has a priority over switching of NTSC/PAL/PAL-M/PAL-N method.
CHARACTER
OSC IN
OUTPUT
input terminal The NTSC method is selected after [L]= reset.
DOT CLOCK
OSC OUT GENERATOR
TIMING SYNCHRONOUS CHARACTER OUTPUT CONTROL NTSC/PAL/PAL-M/PAL-N method setting by a command is effective.
SHIFT
GENERATOR SIGNAL BACKGROUND CONTROL
REGISTER
SYN IN COMPLEX GENERATOR VIDEO OUTPUT CONTROL [H] = PAL-M method.
SYNCHRONOUS
SEP C
SYNCHRONOUS
SIGNAL 22 CTRL3 SEPIN input control terminal Terminal to control whether or not to input VSYNC signal into SEPIN input
SEPARATION
SEPARATION
SEP OUT
CONTROL terminal. [L] = VSYNC inputted, [H] = VSYNC not inputted.
CTRL CTRL XTAL XTAL BLANK CV CV 23 /RST Reset input terminal System reset input terminal. A pull-up resistor is built in (hysteresis input).
SEP IN 2 IN IN OUT
1 OUT
CTRL3
24 VDD1 Power supply terminal (+5V) Power supply terminal (+5V : power supply for digital system)

60