‘ORDER No. vADSE00M125
Service Manual
General Description
Adjustment Procedures
Block / Schematic Diagrams
Exploded Views / Parts List
Panasonic
Video Cassette Recorder
vis HQ
PACSECAN
NV-SD460F
K-MECHANISM
‘SPECIFICATIONS
ITEM, I ‘SPECIFICATION eM ‘SPECIFICATION
SOURCE Za~ZIO VAC OOH SP aaane
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Panasonic
© 1096 Matsushita Electric Industrial Co., Lt.
‘Ni rights reserved. Unauthorized copying and
éstbuton isa violation ‘2 WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service @ product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
‘service oF repair the product or products dealt with in this service information by anyone else could result in serious injury or death,
INTRODUCTION
This service manual contains technical information which will allow service personnels to understand and service
this model.
Section 1 presents you with technical know how for actual servicing and general information of features and
controls, enabling you to become familiar with each function.
Section 2 presents to your mechanical and electrical adjustment information as well disassembly and replacement
procedures.
In the case of very common information relating to other models like mechanical adjustments, please refer to the
appropriate service manual.
Section 3 contains block diagrams which provides you with information for checking and understanding each
circuit. Schematic diagrams which give you detailed information such as waveforms, voltage data, function e.t.c.
Section 4 contains exploded views and parts list.
Please place orders using the parts ist and not the drawing reference numbers.
If the circuit is changed or modified, this information willbe followed by supplementary service manual to be filed
with original service manual.
Note 1: Adjustment procedures, Disassembly Procedures and Assembly Procedures for Mechanism Chassis are
separate volume from this service manual
Please refer to the service manual for K-Mechanism Chassis. (Order No. VRD9307M131) CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1-1. SERVICE INFORMATION
1-2. SELF-TEST INDICATION DISPLAY
1-8. SERVICE INFORMATION DISPLAY
1-4. OPERATING INSTRUCTIONS
SECTION 2
ADJUSTMENT PROCEDURES
241, DISASSEMBLY METHOD...
2-2, MECHANICAL ADJUSTMENT PROCEDURES,
2:3, ELECTRICAL ADJUSTMENT PROCEDURES.
SECTION 3
BLOCK DIAGRAMS & SCHEMATIC DIAGRAMS.
341. ABBREVIATIONS.....
3-2. TIMER BLOCK DIAGRAM
33. SECAM CHROMINANCE PACK BLOCK DIAGRAM.
3-4, SYSTEM CONTROL & SERVO BLOCK DIAGRAM
36. LUMINANCE & CHROMINANCE BLOCK DIAGRAI
36. POWER SCHEMATIC DIAGRAM. wwe
3-7. RF SECTION IN MAIN SCHEMATIC DIAGRAM
3-8. OSD SECTION IN MAIN SCHEMATIC DIAGRAM.
3-9. AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM
3-10. LUMINANCE & CHROMINANCE SECTION IN MAIN SCHEMATIC DIAGRAM..
3-11, SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
3-12, CYLINDER STATOR UNIT SCHEMATIC DIAGRAM
3-13. MOTOR DRIVE SECTION IN MAIN SCHEMATIC DI
3-14. LUMINANCE & CHROMINANCE PACK SCHEMATIC DIAGRAM.
3-18. SECAM CHROMINANCE PACK SCHEMATIC DIAGRAW.....
3-16. HEAD AMP SCHEMATIC DIAGRAM..
3-17. INPUT/OUTPUT PACK SCHEMATIC DIAGRAM...
3-18, TIMER SCHEMATIC DIAGRAM ..
3-19. OPERATION SCHEMATIC DIAGRAM...
3-20. TV DEMODULATOR PACK SCHEMATIC DIAGRAM
3-21. MAIN CBA.
3-22. TIMER C.BA..
3-23. POWER C.B.A.....
3-24, LUMINANCE & CHROMINANCE
3.25, SECAM CHROMINANCE PACK C.B.A.
3-26. CYLINDER STATOR UNIT
3-27. INPUT/OUTPUT PACK C.B.A.
3:28, HEAD AMP C.B.A.
3-29. OPERATION C.B,
3-30. TV DEMODULATOR PACK C.
SECTION 4
EXPLODED VIEWS & PARTS LIST
44, EXPLODED VIEW & MECHANICAL REPLACEMENT PARTS LIST...
4-2. ELECTRICAL REPLACEMENT PARTS LIST. SECTION 1
GENERAL DESCRIPTIONS
1-1. SERVICE INFORMATION
1-1-1. CHANNEL MEMORY IC INITIALIZATION
When replacing the memory C7704, its IC should be
initialized.
Noter) It should be performed before tuning
2) Meaning of “INITIALIZATION” is to make depend-
ency in different models and to distinguish between
different features.
Method:
1) Connect a jumper wire between TLE0O1 (IC6001-96)
and TL6002 (GND).
2) Tum the Shuttle Ring to FF then press the EJECT
button to set the Service Mode. (Test Mode will be
appeared on the monitor TV.)
3) Set the Mode! Code for this model by using 10-key
‘on the Remote Controller Unit as follows.
4) Alter finishing the initialization, disconnect a jumper
wie.
a Code No.
NV-SD460F L 113,
1-12. SERVICE POSITION
‘A. CHECKING OF MAIN C.
When servicing the MAIN C.B.A., take out the MAIN
C.B.A. and mechanism from the frame and tur over.
EXTENSION
CABLE
(rit i40)
Power
SUPPLY UNIT
MECHANISM UNIT
MAIN C.B.A.
TIMER C.B.A.
OPERATION 6.B.A.
Fig. $1
B. MECHANISM SERVICE POSITION
When servicing the K-Mechanism, take out the mecha-
nism from the MAIN C.B.A. and connect Extention Cable
(VFK0889) between the loading-motor connector and
2001 as shown below.
Inthis position, the following services are possible,
EXTENSION
CABLE
(VFKO889)
Loadir
Motor ~
MECHANISM
Unit
Fig. 82 B-1. CHECKING OF LOADING/UNLOADING OPERATION
‘There are 3 methods for manual operation of load-
ing/unloading operation as follows.
1, HAND OPERATION
1) Turn the Worm Gear or the Worm Wheel Gear
(Remove the Loading Motor Unit) manually.
2, BATTERY OPERATION
1) Remove the Extention Cable (VFK0889).
2) Connect the Battery (Manganes-Type RG (AA)
3p¢s./'+4.5V) to the Loading Motor terminals.
3. SERVICE INFORMATION DISPLAY OPERATION.
41) Set the Service Information Display mode.
(Turn the Shuttle Ring to FF then press the EJECT
button.)
In the Service Mode 7, the Loading Motor rotates for
Loading operation when the “PLAY” button is
pressed
The Loading Motor rotates for unloading operation
when the "STOP" button is pressed.
2)
Remark:
Use the “SERVICE INFORMATION DISPLAY” mode for
a final check of mechanism movement.
B-2, CHECKING OF REEL GEARS OPERATION
1) Move the mechanism to “PLAY” position by loading
operation. (Refer to B-1)
2) Turn the Capstan Rotor Unit to check movement of
re6l gears.
4-1-8, CYLINDER UNIT REPLACEMENT
A. CYLINDER UNIT REPLACEMENT
1) Remove the 3 Screws (A) of the CYLINDER UNIT
with a magnetized screw driver in the MECHANISM
‘SERVICE POSITION.
Sscrews(A)
CYLINDER UNIT
Fig. $3
B.
UPPER CYLINDER DISASSEMBLY
1) Remove 2 screws (A)
2) Remove the Cylinder Stator Unit
8) Remove 2 screws (8)
4) Remote the Cylinder Rotor Unit.
5) Loose hex screw (C) (1.5mm) and remove the
Gylinder Retainer.
6) Remove the Upper Cylinder.
STATOR UNIT
ROTOR UNIT UPPER CYLINDER
(CYLINDER RETAINER
Hex Sérew(C)—- UPPER'CYLINDER
Fig. S4 C. UPPER CYLINDER ASSEMBLY
When reassembling, perform the steps in the reverse order.
1) Install the Cylinder Retainer so that the 2 holes on
top of the Cylinder Retainer are at right angles with
the Head Amp Shield,
2) Tighten the hex screw (C) (1.5mm) while pressing
down on top of the Cylinder Retainer.
TOP VIEW)
HEAD AMP SHIELD
eyUNDER
| RETAINER
vox Sew (6) UPPERLCYLINDER
ig 55
Projection (D)
\
UPPER CYLINDER
Fig. $6
ROTOR UNIT
2) Install the Cylinder Rotor Unit so that the inner hole
of the Cylinder Rotor Unit fits to the small projection
(0) on top of the Upper Cylinder.
4) Tighten 2 screws (8).
8) Install the Cylinder Stator Unit so thatthe rear side of
the Cylinder Stator C.B.A. is parallel with the Head
‘Amp Shield.
8) Tighten 2 screws (A).
7) Confirm the PG SHIFTER ADJUSTMENT with the
alignment tape (PAL: VFJ8125H3F/NTSC:
\VFMBOEOHQFP) and adjust it if necessary.
g
3
— STATOR
Unit
UPPER CYLINDER
Fig. S7
‘Soros (A)
4-1-4. FLAT CARD CABLE INSTLLATION
When installing the Flat Card Cable on the connector, install
the Flat Card Cable with the cable contacts facing the
‘connector contacts.
FLAT CARD CABLE
INSULATION
SHEET,
TYPICAL CBA.
CONNECTOR
Fig. SB 1-1-5. CAPSTAN STATOR UNIT ASSEMBLY
‘When replacing the Capstan Stator Unit, the Centre Fixing
‘Tool (VFKO851) must be used to fix the centre of Capstan
Stator Unit.
Method:
4) Place the Capstan Stator Unit into position,
2) Loosaly tighten the 3 screws.
3) Insert the Centre Fixing Tool (VFK0851) as shown
below.
4) Tighten the 3 sorews.
5) Remove the Centre Fixing Tool
aa le
CENTRE FIXING TOOL,
(VFKO851)
ve CAPSTAN STATOR
ate
x
ogc
LOWER METAL
UPPER METAL
Fig. $9
41-6. EJECT OPERATION
The main cam gear rotates in the direction of the arrow.
The projection (B) of the carriage connection gear engages
with the recession (A) of the main cam gear. The carriage
connection gear rotates in the direction of the arrow to
perform the Eject operation.
If the Eject operation is performed without the cassette
cartiage installed while repairing or making the mechanical
phase alignment, the main cam gear will not engage with
the cartiage connection gear and will not rotate,
To perform the Eject operation with the cassette carriage
not installed, itis necessary to rotate the carriage connec
tion gear by hand in the direction of the arrow.
(Rear Side)
CASSETTE
CARRIAGE
SIDE PLATE(R)
— CARRIAGE
CONNECTION GEAR
MAIN CAM GE/ PROJECTION()
RECESSION(A)
R
(Front Side)
Fig. S10 Top View of Eject Operation
1-1-7. TAKE-UP PHOTO SENSOR OPERATION
Note the following matters for Take-up Photo Sensor
Operation.
1) While servicing of the K-Mechanism, the unit will nt
‘operate properly if a strong light (ex, Fluorescent
light, Spot light falls on the Take-up Photo Sensor.
In this case, cover the Take-up Photo Sensor to
prevent the light from falling on it.
2) While servicing of the K-Mechanism with “Pawer On"
and without cassette tape inserted, the Unit does not
operate property. 1-1-8. REMOVAL OF THE CASSETTE TAPE
If the electrical circuit is defective and the action of
unloading and front unloading do not work properly, itis
possible to remove the cassette manually. There are 2
‘methods of removing the cassette.
1. HAND OPERATION
1) Take out the mechanism from MAIN C.B.)
2) Turn the Worm Gear manually, moving the Loading Post
to the unloaded position.
'8) Turn the Capstan Rotor Unit clockwise to take up the
tape.
4) Tur the Worm Gear again to eject the cassette.
2. BATTERY OPERATION
41) Take out the mechanism from Main C.B.A.
2) Connect the Battery (Manganes-Type R6 (AA) 3pcs/
+4.5V) to the Loading Matar terminals as shown below.
8) After moving the Loading Post to the unloaded position,
disconnect the battory to stop the motor.
4) Turn the Capstan Rotor Unit to clockwise to take up the
tape.
5) Reconnect the battory to eject the cassette,
vovone
ee
TS +—{(My
2b) ‘|
serteny
[I] 6
45V
Fig. S11
It the cassette tape can not be removed by the above 2
‘methods, remove it by the folowing method.
4) Remove the Top Panel
2) Remove the Front Panel Unit.
3) Lift up the Pinch Arm after removing spring.
44) Push the P5'Arm and remove the cassette tape from
{ape transportation (P1, P2, P3 and PS Posts)
8) Tum the Capstan Rotor Unt to take up the tape.
6) Remove 1 screw from the Side Plate (R) Unit to dis-
connect the Rack Goar from tho Carriago Connection
Gear.
7) Take out the cassette tape from the Cassette Compart-
ment. 1-2. SELF-TEST INDICATION DISPLAY
This VTR has a self-diagnosis and display function. If the
VTR detects trouble during installation or during use, one
of the following Fault Indication Codes will automatically
appear in the VTR display. Fault Indication codes are
displayed in the form of a single English letter followed by
two numbers, as for example “HOT”.
Note:1. The indication “t
Is displayed on the FIP while
power remains on.
2. Otherwise, the indication “H" or “F"is displayed on
the FIP, and the power is automatically turned off
When the power is turned on again, the Fault
Indication Code will disappear and the unit will
return to normal display mode (either clock or
counter).
3. This Fault Indication Code will be stored in the
Timer microprocessor even with the AC plug
disconnected.
The two-digit number portion of the stored Fault
Indication Code can be redisplayed in the FIP's
“second” display position (the last 2 digits on the
light) by placing the unit is Service Mode Number 2
when turing on Service Information Display as for
example "01" or 02" ete
Ifa second error occurs, only the most recent error
willbe displayed and stored.
4. To erase the stored Fault Indication Code data,
Tum the Shutle Ring to FF then press the EJECT
button for 5 seconds.
FIP
INDICATION CAUSE REMEDVICHECK
1 1A | pew format ait until the incicaion disappear
LAG | ew tomain Wait until the indication disappears.
u 11 1 | After cylinder lock is detected, the cylinder does not | Check the cylinder-motor drive circuit.
Ut | start rotating again even atte tape unloading
H n Cassette tape is not wound up during tape unloading | Check the capstan-motor drive circuit.
u ‘except Eject mode.
Mechanism lacks during mode transton except Eject | 1.Check the loading-motor drive circuit
n 3 pt ng
FGA | mote 2.Gheck the mechanism phase alignment
J 3.Check the Mode Swich.
F[]Y_ | Nechansm ots arn tae unoaang 1. Check the loading-motor dive cru.
ud 2. Check the mechanism phase alignment.
n Gassette tape is not wound up during tape unloading |"1.Check the capstan-motor drive circuit.
UJ | ingject mode. 2.Check the Supply/Take-up reel pulse
TAC _| Mechanism locks afte tape unloading in Eject mode. | 1-Check the loading-motor dive circu
15 2.Ghook the mechanem phase alignment for
Cassette Holder Unit
F FTF}. | Rec toner votave doesnot appear Rec mode, | Check the Rec power supply rout
F GIG) | Pec poner vatace appears except Rec mode Check the Ree power supply cuit
F FQ | agaist eosk vanemisslan bowaon 1001 and | Choke sr ck cru
Ud [167501
Fig.T1
1-6
‘Self-Test Indication Display 4-3. SERVICE INFORMATION DISPLAY
F
‘Service Mode
Number
‘Service information
Number
Number
Service Data |
Indicates the circuit to
bbe checked.
Indicated the condition
of the circuit andlor the
position of the machanism.
Indicated which circuit senses
‘a malfunction,
Fig. D1 Service Information Display
1-3-1, Purpose of Service Information Display
This Information alds trouble shooting by Indicating
the source of the malfunction. The service mode
number & service data number are used by the
technician during repair while the service information
can be used by the consumer to diagnose mal-
functions allowing the technician to provide a more
‘accurate repair cost estimate and reduce repair time.
1-8-2. Turing on Service Information Display
(1) Tum the Shuttle Fing to FF then press the EJECT
button.
In the Service Information Display, there are four digits
divided into 3 functions.
The first digit indicates which of the 7 service modes that the
unit is currently in.
MODE 4 : Checks tape protection circuit
MODE 2 : Checks tape transport mechanism
MODE 8 : Checks mode switching operation
MODE 4 : Checks control buttons
MODE § : Checks capstan motor
MODE 6 : Checks cylinder motor
MODE 7 : Checks loading/unioading operation
The second and thitd digits are service data which indicate
the condition of the citcult or mechanism being checked.
‘The forth digit is the service Information display. It is to be
used by the consumer to help determine the source of a
malfunction. The service information display operates.
Independently of the service modes and stores the fault
Indication in memory for as long as AC power is not
supplied. 1-33. Use of Service Modes.
Service Mode ‘Service Data
Number Number
Indicates the circuit to Indicated the condition
be checked:
of the circuit andior the
position of the machanism.
Fig. D2. Service Mode Number and Service Data Number on $1.0.
(1) Tum on Service Information Display.
(2) To change Service Modes tur the Shuttle Ring to FF
then press the EJECT button,
(8) Mode 1:
t|
(4) Mode 2:
(5) Mode.
[3
(6) Mode 4.
4
‘Cheoks that the Sensor LED, Supply &
‘Take-up Sensor circuits check the circuits
by blocking the light from the Sensor LED to
either or both Supply & Take-up Sensors.
When the light is blocked to both sensors,
00" should be indicated on the service data
number.
When the light is blocked to the supply
‘sensor, "01" should be indicated.
Checks the mode switch circuit white
indicating mechanism postion
Service Data Numbers indicate the position
of the mode ewitch and there by the
‘mechanism position.
Checks that mode switch circuit operations
have been completed.
‘Service Data Number should indicate “00
after each mechanism operation is
‘completed.
CGhacks the operation circuit
Indicates if IC6001 receives the operating
‘commands from the mode buttons and/or
remote controller.
(7) Mode 5
5
(@) Mode.
6
Meie7
(a1
t
®
Checks the capstan motor circuit.
Indicates if the [C6001 has received the
command to rotate the capstan motor.
Checks the cylinder motor circu.
IC6001 has received the command to rotate
the eylinder motor.
Checks the Loading/Unioading Operation.
The Loading Motor rotates for loading ope-
ration when the “PLAY” button is pressed.
The Loading Motor rotates for unloading
operation when the “STOP” button is
pressed. This mode can be displayed
indefinitely until the OPERATE button is,
pressed,
Refer to Fig, DS for details of Service Data Numbers. 1-9-4. Service Information Number
Indicated which circuit senses
a maifunction.
Fig. 03. Service Information Number on S.1.D.
Refer to Fig. D4 for details of Service Information Number.
Note:
‘The Service Information Number display is independent
of the service mode display.
The Service Information Number will be stored as long
as AC power is not supplied. (It can be displayed in the
Service Mode 2.)
Ii'a second error occurs, only the most recent error will
be displayed.
‘Service Information Number Matfunction
fn
u ‘Normal (No problem)
Cylinder stop
‘Tape reel stop
Stop at position other than 4 or 6
‘Stop during unloading
Faulty capstan rotation
oy) oe fy)
‘Stop during Cassette-InEject operation
Fig. D4 Detail Service Information Numbers
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Iceo0i
‘System control 1C6001 senses the mechanism position
through the Mode SW.
Fig. D6 shows the timing for Servioe Mode Number 2.
postTion swt]
POSITION swe: =| Co MODE sw
POSITION SW3++
UNLOADING ee
LOADINGE— PaNotoR
i
1
Position sw1 __| 1
(16600-Pin 115) 1
(1C6001-Pin 116) ' 1
na
ie
POSITION sw2 na
ha
im
POSITION Sw3
((C6001-Pin 117)
Mu y---
i 1
1 o
1 1
1 1
1 1
' 1 Hl
' 1
1 1
1 1
1 1
1 1
1
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mip EWD stow
LOADING Stops?
UNLOADING
+1: Stop @: The pinch ellison the capstan motor shaft
+2: Stop ; The pinch Roller is off the capetan motor shaft.
#3 : Service Data Number; This is for Service Mode Number 2.
Fig. D6. Timing Chart of Mode SW
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1—31 SECTION 2
ADJUSTMENT PROCEDURES.
2-1, DISASSEMBLY METHOD
24-4, DISASSEMBLY FLOW CHART 2-1-2. DETAIL OF DISASSEMBLY METHOD
This flow chart indicates disassembly steps of the cabinet 1. REMOVAL OF THE TOP PANEL
parts and the circuit boards in otder to find the necessary
Items for servicing, Remove... 4 Sorews (A)
When reassembling, perform the steps in the reverse order.
[| 1. TOP PANEL
2, BOTTOM PLATE
44 3, FRONT PANEL UNIT -
4. TIMER OBA. & OPERATION Fig. D2
— secre eeeeere 2. REMOVAL OF THE BOTTOM PLATE
: Ung nue 6 tabs (8)
5. POWER SUPPLY UNIT ———_
[BOTTOM View
6. MECHANISM UNIT
u —_]
7. MAINC.B.A.
L 8 SERVICING POSITION
se BOTTOM PLATE
Fig. D1 Fig. D3 3. REMOVAL OF THE FRONT PANEL UNIT
JOG & SHUTTLE Knob
«11 Tabs (C)
Pull out.
Unlock
[FRONT View
FRONT PANEL UNIT
Tabs (C)
JOG & SHUTTLE Knob
Fig. D4
4, REMOVAL OF THE TIMER C.B.A. & OPERATION
OBA.
REMOVAL OF THE TIMER CBA.
Disconnect... 2 Bridge connectors (D)
Unlock nscrn 8 Tabs (E)
REMOVAL OF THE VROB.A.
Disconnect... 2 Bridge connectors (0)
Unlock. 2 Tabs (F)
FRONT VIEW
Tabs (F) Tabs (€)
OPERATION Bridge TIMER
CBA Connectors (D) CBA.
Fig. DS
6. REMOVAL OF THE POWER SUPPLY UNIT
Disconnect......Bridge connector (G)
Unlock 5 Tabs (H)
Unlock, 2 Tabs (I)
TOP VIEW)
Tabs (H) POWER
‘SUPPLY UNIT
MECHANISM
UNIT
Bridge
MAIN
Connector (@)
CBA.
REAR VIEW
Tabs ()
ie
ri
[al
Fig. D6
CAUTIONS:
Please pay an attention to disconnect the connector
(PS3006-P 1102) which connected between Main C.B.A.
and Power supply unit as shown below.
MAIN.
SCREW
Connector
(830081102)
DRIVER
POWER SUPPLY
UNIT
Fig. D7
‘As above drawing, disconnect the connector by SCREW
DRIVER from the direction @.
Do not disconnect from direction @) because itis posslolty
to damage the parts located by the connector. 6. REMOVAL OF THE MECHANISM UNIT
19 Screws (J)
" Screw (K)
7. REMOVAL OF THE MAIN CBA.
Disconnect ... Bridge connector (3) [Fig. D8)
Remove ..... 2 Screws (L)
Unlock...nese 8 Tabs (M)
TOP VIEW.
Serew (K)
‘Screws (L)
Tabs (M) POWER
ee [S989 unr
)
‘Screws (J) MECHANISM
wan
wan vee
co) (K) ce)
Fe
1, -
fom |) Pom tana
coo || reo || we |
abe
couse
SONS un BRYSON
(VFK1140)
ecuaniitunt
_—MAIN CBA.
OPERATION EBA.
Fig. D9
2-2. MECHANICAL ADJUSTMENT
PROCEDURES
‘The mechanical chassis of this model is the K Mechanical
Chassis.
‘Therefore refer to the Service Manual for K Mechanical
Chassis. (Order No. VRDS307M131)
CAUTIONS:
To make a Adjustment Mode for Tape Interchange-
ablity, there are two ways to turn off the Auto Tracking.
(1) Connect a jumper wire between TL6001 and TL6002.
‘Alter finishing the adjustment, disconnect the jumper
wire.
(2) Turn the Shuttle Ring to FF then press the EJECT
button to set the Service Mode 2. LOCATION OF TEST POINTS & CONTROLS
MAIN C.B.A.
i
0 Bd Bed
VROOIS a a VRSO12
A ve8804
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O Ta
LUMINANCE & CHROMINANCE PACK C.B.A.
a
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AK eo ruse
vos. rece
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BME
rear aa
FEC.
Eine
Sue ‘SECAM CHROMINANCE PACK C.B.A. HEAD AMP C.B.A.
‘Tes0e TPso7
onze!
TIMER C.B.A.
CIRCUIT BOARD LAYOUT
—— SECAM CHROMINANCE PACK C.B.A.
TV DEMODULATOR
PACK CBA. INPUTIOUTPUT PACK C.B.A.
———— HEAD AMP C.B.A.
OPERATION C.B.A:
MAIN CBA,
LUMINANCE & CHROMINANCE
PACK C.BA.
POWER CBA.
TIMER CBA. est: —408
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SauNOld rE SECTION 3
BLOCK DIAGRAMS & SCHEMATIC DIAGRAMS
3-1. ABBREVIATIONS
449NT (L)
‘COMP
‘compo
DPR
buy
DEF [S)
DEF [S] 1)
DUBP Il)
Dus IH)
ERASE
HSwW
HEAD [R]
HEAD [W]
nu
NR
MUT [H}
MUTE [H]
our
our RI
RF OUT
ANVSIS. DATA
‘AC ONLINE
AC. OEE. H
AFOSC
AFC IS]
AFC. DEF
ARF OUT
ART.
ART. V. MM.
PP PP PP PPPPPPPPrPrr?r
ART. VIMIN
AT.VININ
ATSW/TESTINORISE
AUDIO IN [L]
‘AUDIO IN [A
AUDIO OUT [L)
AUDIO OUT [R}
AUDIO SELECT [H]
AUDIO. L
AUDIO. R
AVCNT
AV CTL
AV CTUS. CLK
AV.OM.
AVONTIMETER. R
AVSWIMETER. L
BMODE.H
BGP
BACKUP sv
BAND. UE.
BANDVL.D
BI/MI [L]
443 NISC ©
‘AUDIO COMPONENT SIGNAL.
‘AUDIO COMPONENT SIGNAL,
‘AUDIO DUBBING PAUSE ©
‘AUDIO DUBBING PAUSE ©
‘AUDIO DEFEAT
‘AUDIO DEFEAT
‘AUDIO DUBBING PAUSE ©
AUDIO DUBBING
‘AUDIO ERASE
‘AUDIO HEAD SWITCHING PULSE
‘AUDIO HEAD (REC)
‘AUDIO HEAD (PLAY)
‘AUDIO INPUT (L)
‘AUDIO INPUT (R)
AUDIO MUTE @
AUDIO MUTE @
AUDIO OUTPUT (L)
‘AUDIO OUTPUT (R)
AUDIO RF SIGNAL OUTPUT
AV SWISERIAL DATA
‘AC ONLINE
‘AG ONLINE/EE @
AFOS CURVE
AFC S CURVE
AFG DEFEAT
AUDIO RF SIGNAL OUTPUT
ARTIFICIAL VERTICAL SYNC SIGNAL
ARTIFICIAL VERTICAL SYNC
SIGNAL MONO MULTI
ARTIFICIAL VERTICAL SYNC
SIGNAL @/NORMAL
ARTIFICIAL VERTICAL SYNG SIGNAL
TESTINORMALISERVICE
AUDIO INPUT (U)
AUDIO INPUT (R)
AUDIO OUTPUT (Ly
AUDIO OUTPUT (R})
AUDIO SELECT ®.
AUDIO (Y)
AUDIO (R)
‘AV CONTROL
‘AV CONTROL,
‘AV CONTROLISERIAL CLOCK
‘AV CONTROL MODE
‘AV CONTROLILEVEL METER (R)
AV SWILEVEL METER (L)
BMODE®
BURST GATE PULSE
BACK UP 5V
BAND U
BAND VL
BILINGUALIMIX ©
ail
ally
BIL. [H)
ILM 1
8s CLOCK
8S DATA
8S LCH IN
BS MIX [H]
BS MON [H}
BS MONI [H]
8S RCH IN
BS VIDEO
BS VIDEOIBS1
8s IH
BS. LEVEL
BS. M(H)
BSITR [HI
BUS CLK
BUS LSN
BUS TLK
BUZZER
cap Ec
CAP M GND
CAP. ET
cap. Fat
CAP. Fa
cas. SW
con
cop
cH
cHP
CINEM [L]
CINEMA [L]
CINEMAMIX
KL.
Ks
ou
LK
LK (0.6)
CLOCK. IN,
cup.
‘COLIBAWINOR
COLOR [H]
conv
cs
CTLGND
CTL HEAD (+)
CTL HEAD [-]
CTL Es]
cL
CUE BIAS.
CURRENT LIM
CYLeT
BILINGUAL
BILINGUAL ©
BILINGUAL ®
BILINGUAL ©
BS CLOCK
BS DATA
BS L CHANNEL INPUT
BS MX ®
BS MONITOR ®
BS MONITOR ®
BS R CHANNEL INPUT
BS VIDEO SIGNAL
BS VIDEO SIGNAL
Bs@
BS LEVEL
BS MONITOR @
BSNTR®
BUS CLOCK
BUS LISTEN
BUS TALK
BUZZER
CAPSTAN TORQUE CONTROL,
‘CAPSTAN MOTOR GND
‘CAPSTAN TORQUE CONTROL,
CAPSTAN FGt PULSE
‘CAPSTAN FG2 PULSE
CASSETTE SW
PLAYBACK CONTROL SIGNAL (~)
PLAYBACK CONTROL SIGNAL (+)
‘CONTROL SIGNAL (+)
CONTROL SIGNAL (-)
CINEMA®
CINEMA ©
GINEMAMIX
RATCH LOCK
SHIFT LOCK
Lock
clock
cLock
CLOCK INPUT
CLAMP
COLOURIBLACK & WHITEINORMAL
COLOUR ®
CONVERTOR
CHIP SELECT
CONTROL GND
CONTROL HEAD (+)
CONTROL HEAD (-)
CONTROL HEAD (+)
CONTROL HEAD (-)
GUE BIAS
CURRENT LIMMITER
CYLINDER TORQUE CONTROL CYL GND
D.F.M. REC [H]
D. FM REC [L]
0.6ND
D. REC (4)
als. LED
DA'STILLED
DAC [CLK]
DACIFSCS
DAREC [H]
DATA
DECODER [L)
DECODER IF}
DEW
DEW sis
DFMRE [H)
E.RECSV
EC
ECR
EDT TRIG [L)
EDIT fH]
EE IH)
EE [HVINS [M)
EE. W.TR
EJECT. PO
EJECTIVOET
ENV. SEL
ENVE. OUT
ENVE. SEL
ENV SELECT
EP tH]
EPILP [H]
EPILP/SP.
EPISS [H)
EPROMCS
EX. REC 5V
FRIREW [L]
FGt IN
FG2 IN
FILTER ADJUSTMENT
FLY ERASE [H]
FLY ON [H]
FLY. EH]
FM MUT [H]
FM MUTE [H]
FMOUT[U)
FMOUT [R]
FM PACK OUT []
FM PACK OUT [RI]
FBS SEL [lj
FBS SEL [R}
FS. CLK
FUL. ETH)
FULL. E(H]
CYLINDER GND FULL. €.12V
DELAIED FMRECORDING® — || GND iA)
DELAIED FM RECORDING © GND [TU]
DIGITAL GND. GNDIN. SW. 12V
DELAYED RECORDING ® H. SYNC
D4/STILL LED) H.AMP. SW
DASTILL LED HP
TUNER DAG (CLOCK) HP
TUNER DACIFS CHIP SELECT _ |) H. PGND
DELAYED AUDIO RECORDING @) |] H. P OUT [L}
DATA H. POUT IR]
DECODER (L) H.sw
DECODER (R) HEAD PHONE [L)
DEW HEAD PHONE [R}
DEW SENSOR HEAD SW
DELAYED FM AUDIO RECORDING ® |) HEATER [+1
EXCEPT RECORDING 5V HEATER [-]
ERROR TORQUE CONTROL Hss
ERROR TORQUE CONTROL. HTR (A
REFERENCE VOLTAGE HTR[-]
EDIT TRIGGER © RFE
EDIT@ io.
EE@ iF
EE @VINSERT @ IN SELAT
EEIVVITRICK PLAY INSELA2
EJECT POSITION INSELAS
EJECTIREVERSE SLOW LOCK || INSUR[L)
ENVELOPE SELECT INS. [H}
ENVELOPE OUTPUT INSEL At
ENVELOPE SELECT INSEL A2
ENVELOPE SELECT INSERT.
LPe INSERT [H]}
Le 1ocs
LprsP JoGi
LP/SLOWISTILL/STOP @) JOG S3 LED/FOWRD
EPROM CHIP SELECT SOG. LED
EXCEPT RECORDING 5V 488 fH)
FIRST FORWARD/REWIND © JST. CLOK
FG1 PULSE INPUT JST. OLK
FG2 PULSE INPUT JST. CLOCK
FILTER ADJUSTMENT Lour
FLYING ERASE HEAD ON ® Loki
FLYING ERASE HEAD ON ® Loui
FLYING ERASE HEAD ON ®) LED (MAIN)
FM AUDIO MUTE ® LED (STEREO)
FM AUDIO MUTE ® LED (SUB)
FM OUTPUT (L) LED CKL
FM OUTPUT (A) LED CkS
FM PACK OUTPUT (L) LED DATA
FM PACK OUTPUT (F) UNE IN (4
FMIBS SELECT (L) LINE IN 4 [Fy
FMIBS SELECT (A) LINE IN 2 {L)
FS OLOCK |] uinew2 i]
FULL ERASE HEAD ON @ | ue
FULL ERASE HEAD ON [Lune ny
FULL ERASE 12V
GND (ANALOG)
GND (TUNER)
GND/NON SW 12V
HORIZONTAL SYNG
HEAD AMP SW PULSE
HEAD PHONE (R)
HEAD PHONE (L)
HEAD PHONE GNO
HEAD PHONE OUTPUT (L)
HEAD PHONE OUTPUT (R)
HEAD SW PULSE
HEAD PHONE (L)
HEAD PHONE (R)
HEAD SW
HEATER (+)
HEATER (-)
HORIZONTAL SYNC SIGNAL
HEATER (+)
HEATER (-)
REFERENCE CURRENT
‘CONTROL AGC CIRCUIT
INTERMEDIATE FREQUENCY
INPUT SELECT At POSITION
INPUT SELECT A2 POSITION
INPUT SELECT A3 POSITION
INSERT LotvFich ©
INSERT@
INPUT SELECT At POSITION
INPUT SELECT A2 POSITION
INSERT
INSERT ®
INPUT/OUTPUT GHIP SELECT
Jost
JOG LED/FORWAAD LED
JOG LED/FORWARD LED
488
JUST CLOCK
Just CLOCK
JUST CLOCK
Leh OUTPUT
Leh @®
Lao
LED (MAIN)
LED (STEREO)
LED (sua)
LED SERIAL CLOCK
LED SERIAL CLOCK
LED SERIAL DATA
LINE INPUT + ()
LINE INPUT 1 (R)
LINE INPUT 2 (L)
LINE INPUT 2 (®)
LINE INPUT VIDEO
LINE INPUT (L) LINE IN (RI
LINE OUT (Uy
LINE OUT [R}
LPH)
LPTRI(L)
chiA. DUB
MGND
MREG
MAIN OUT
MAIN [L}
MAIN/MONO
MAX IN
MES [H]
MESE (H]
MESE [L]
METER 5V
METER [L)
METER [R]
METER. LAVS
METER. FAVC
Mvet (U)
MIC. GND
MIC IN
MIC IN (Ly
MIC IN [FI]
Mic (H)
Mix TH]
MIX [HY/CINEMA [L)
MIXICINE
MIXICINEMA [L]
MN. HIM.
MN. H/MAL. L
MNZIMES. L
MODE SEL
MODE SW
MODE. S. IN
MODE. S. OUT
MONO (H}
MONO [HYMAIN [L}
MONO? [L]
MONO2/MESE [FM(L)]
MOTOR GND
MUTE
N.A, REC [L]
N.SW 12V,
N. SW. 5. DET
NIGAM
NIGAM [L)
NOL IH}
NORISOFT [Hi]
NORMAL [H]
NRBIAS
NTSC (LI
OCH
out
LINE INPUT (R)
LINE OUTPUT ()
LINE OUTPUT (R)
ve
LP TRICK PLAY ©
Leh/AUDIO DUBBING
MOTOR GND
MOTOR REGULATOR
MAIN OUTPUT
MAINO
MAINMONAURAL
MAXIMAM INPUT.
MESECAM @)
MESECAM @
MESECAM ©
LEVEL METER 5V
LEVEL METER (L)
LEVEL METER (R)
LEVEL METER ()
LEVEL METER (R)
MIX @/BILIGUAL
MIC. GND
Mic INPUT
MIG INPUT (4)
MIG INPUT (R)
Mic ®
Mx®
MIx ByGINEMA SOUND ©
MIX @/CINEMA SOUND ©
MIX GRYCINEMA SOUND ©
MONAURAL MAIN ©
MONAURAL MAIN ©
MONAURAL 2/MESECAM ©
‘AUDIO MODE SELECT
‘AUDIO MODE SW
AUDIO MODE SELECT INPUT
AUDIO MODE SELECT OUTPUT
MONAURAL &
MONAURAL @/MAIN ©
MONAURAL 2
MONAURAL 2IMESECAM (FM ©)
MOTOR GND
MUTE
NORMAL AUDIO RECORDING
NON SW 12v
NON SW 5V DETECT
NIGAM
NICAM ©
PAL Bi4.43 NTSC 358 NTSC
NORMALISOFT TAPE PLAY @
NORMAL ®
NR BIAS
NIsc.©
CONTROL AGC CIRCUIT
ourPuT
P-OFF [H]
P-OFF [L}
P.FAIL
P. OFF [H]
P.OFF Il]
PAL (HI
PAL [LUNTSC [H]
PB ADJOUT
PB OUT
PB.H
PFG
PHOTSN +B
PICT. CNT
PLAY LED/RVS LED
PLAY. PO
PLAYIR. LED
PLYIDEW
POWER OFF [l}
PREROLL [H]
PWRFAIL.
R.CH TH]
R.CHIL
RST
RSF
RCH IH)
REC 12V
REC CHROMA
RECH
REC IN
REC OUT I)
REC START
REC VR (C]
REC VR [L)
REC VR {RI
RECY
REC [H]
REC. C
REC. Y
RECIEE CTL.
REELT
REELS
REGULATOR FILTER
RESET
REV MFR
REVMVI
REV MV2
REV MOTOR F/R,
REV MOTOR Vt
REV MOTOR V2
REV MOTOR [+]
REV MOTOR [-]
REV. M, GND
RF. CHROMA
POWER OFF ®
POWER OFF ©
POWER FAILURE DETECT
POWER OFF ®
POWER OFF ©
PAL®
PAL CINTSC ®
PLAYBACK ADJUST OUTPUT
PLAYBACK OUTPUT
PLAYBACK ®
PGF
PHOTO SENSOR +B
PICTURE CONTROL
PLAY LED/REVERSE LED
PLAY POSITION
PLAY LED/REVERSE LED
PLAYIDEW ®
POWER OFF ©
PREROLL ®@
POWER FAILURE DETECT
Reh @)
Roh
RESET
REVERSE @YSTOP @yFORWARD ©
Roh ®)
RECORDING 12V
RECORDING CHROMINANGE SIGNAL
RECORDING ®
RECORDING INPUT
RECORDING OUTPUT ©
RECORDING START
RECORDING VOLUME (COMMON)
RECORDING VOLUME (L)
RECORDING VOLUME (R)
RECORDING LUMINANCE SIGNAL
RECORDING @
RECORDING CHROMINANCE SIGNAL
RECORDING LUMINANCE SIGNAL
RECORDING/EE CONTROL,
REEL PULSE (TAKE-UP)
REEL PULSE (SUPPLY)
REGULATOR FILTER,
RESET
REVIEW MOTOR
FORWARD/REVERSE
REVIEW MOTOR Vt
REVIEW MOTOR V2
REVIEW MOTOR
FORWARD/REVERSE
REVIEW MOTOR V1
REVIEW MOTOR V2
REVIEW MOTOR (+)
REVIEW MOTOR (-)
REVIEW MOTOR GND
RF CHROMINANCE SIGNAL RF OUT
REY
RF. Y. IN
RF. Y. OUT.
ROTAR. SW
ROTARY
RST
RST ()
RolvINST
SIN
SOUT
S-PHOTO
SAL, PLS
s.cLK
8. CLWAV
S.DATA
S.DATA/A
S. PHOTO
S. TAB IL)
SPIN
SCIN
scOuT
SOK SELECT
SELOUT (Y
SEL OUT fF]
SHUTTLE 1
SIF
SLMUT IH]
SLNID [+]
SLNID [-]
SLWTR. MM
SLWTR. REF
SNS. GND
SOFT [H]
SOFT [HJNORMAL
‘SOLENOID ON [L)
SP (H)
SPIUSLP
sssiy
‘STEREO LED
‘STEREO [H]
STEREO (l]
STOP. PO
STOPIBV
STOPI/TAPE SEL
STOPI/PAL:ST
STOP2. PO
STOP2/S-TAB
‘STREO [H]
‘SUB BIAS.
‘SUB. SW
SVHS CAS [L]
SW.5. DET
SYNC [L]
RF OUTPUT
RF LUMINANCE SIGNAL
‘SYSCON 6V
‘SYSTEM
RF LUMINANCE SIGNAL INPUT _ || T-PHOTO.
RF LUMINANCE SIGNAL OUTPUT |] T-RL. PLS
ROTARY SW T. BUSOLK
ROTARY SW T.BUSLSN
RESET T. BUSTLK
RESETO TEND IL)
RohvINSERT T. PHOTO
‘SERIAL DATA INPUT TAPE END [l)
SERIAL DATA OUTPUT TAPE END [LJCAM
SUPPLY PHOTO TRANSISTOR || TesT
SUPPLY REEL PULSE TZ
SERIAL CLOCK TRIG Iy
SERIAL CLOCK/AV TRICK (L)
‘SERIAL DATA TRK. ENV
SERIAL DATA TU. AUDIO
SUPPLY PHOTO TRANSISTOR || TU. GND
SAFETY TAB SWON © TU.V.IN
SECAMIPALINTSC TU. VIDEO
SERIAL CLOCK INPUT TUN NOR IN
‘SERIAL CLOCK OUTPUT TUNR
‘SERIAL CLOCK SELECT TUN. AUDIO IN
SELECT OUTPUT (L) TUNER 12V
SELECT OUTPUT (R}) TUNER L
SHUTTLE 1 TUNER VIN
‘SOUND INTERMEDIATE FREQUENCY |] TUNER (4
INPUT SELECT MUTE @ TUNER IN]
SOLENOID (+) TUNER [R
SOLENOID (-) TUNER. 12
‘SLOW TRACKING MONO MULTI |! TUOFF [H]
SLOW TRACKING REFERENCE |} TV. AUDIO
VOLTAGE TvTR
‘SENSOR GND TXTON (L
‘SOFT TAPE PLAY ® |] U. REGasy
‘SOFT TAPE PLAY GyNORMAL @ || UNREG
SOLENOID ON © UNREGI9V
sP® V. REF
SP/LP V. EE (HI
SLOWISTILUSTOP VEE
‘STEREO LED VCO REF
‘STEREO ®) VD. IN
STEREOO vo. OUT
‘STOP POSITION VIDEO EE (4)
STOP POSITION/SV VIDEO IN
STOP! POSITION/TAPE SELECT |} VIDEO OUT
STOP1 POSITION/PAL, VM
STOP 2 POSITION ‘VM DOWN [Li
STOP 2 POSITION/SAFETY TAB SW || VSS.
STEREO ® VIR [Hl]
SUB BIAS VIR.12V.
SUB SW XIN
S-VHS CASSETTE © xouT
SW5V DETECT
sync ©
‘SYSTEM CONTROL 8V
SYSTEM SW
‘TAKE-UP PHOTO TRANSISTOR
‘TAKE-UP REEL PULSE
‘TIMER BUS CLOCK
TIMER BUS LISTEN
TIMER BUS TALK
TAPE END ©
TAKE-UP PHOTO TRANSISTOR
TAPE END ©
‘TAPE END (/CAMERA PAUSE
TEST MODE,
‘TRAPEZOIDAL WAVE CIRCUIT
TRIC PLAY ©
TRIC PLAY ©
‘AUTO TRACKING ENVELOPE DETECT
TUNER AUDIO
TUNER GND
‘TUNER VIDEO SIGNAL INPUT
TUNER VIDEO
TUNER NORMAL INPUT
TUNER AUDIO (R)
TUNER AUDIO INPUT
TUNER 12V
TUNER AUDIO (L)
TUNER VIDEO SIGNAL INPUT
TUNER AUDIO (L)
‘TUNER AUDIO (NORMAL)
TUNER AUDIO (R)
TUNER 12V
TUNER OFF ®
TV AUDIO
TVATR
TEXTONO
UNREGULATOR 45V
UNREGULATOR
UNREGULATOR 19V.
REFERENCE VOLTAGE
VIDEO EE @
VIDEO EEO
REFERENCE OSCILLATER
VIDEO SIGNAL INPUT
VIDEO SIGNAL OUTPUT
VIDEO EEO
\VIDEO SIGNAL INPUT
VIDEO SIGNAL OUTPUT
MOTOR VOLTAGE
MOTOR VOLTAGE DOWN ©
VERTICAL SYNC SIGNAL
VIR@®
VIR 12V
OSCILLATOR INPUT
OSCILLATOR OUTPUT INPUT/OUTPUT CHART FOR IC6001
Pin Number | InpuvOutput | Por Name Funation
1 ° 2H (H) This por is high in SP mode. 7
“This ports high during special playback (CUE, REV, SLOW,
2 ° FM MUTE) | Su porte
5 a ‘AUDIO MUTE | This portis high during special playback (CUE, REV, SLOW,
* STILL) mode.
4 ° EDIT (H) his por is high during ect.
5 ° VIDEO EE (L) | This port is low during EE mode.
Input signal select
6 ° vA “VCRIN | _VA__| VB
TUNER L L
AVI 4 L
7 ° ve AV? t Hl
ava [HH
P 7 inoreased in FF
8 a V.CHANGE (| THSERR'S Nigh whl the fara motor torque heeased
o © LMLIMIT (H) | Loading motor torque limiter output
10 ° FFIREW (U) This por is low during FF and REW modes.
" ° UNLOADING (H) | This por is high while the mechanism is unloaded.
2 ° LOADING (H) _| This pots high while the mechanism is loaded
Normal audio recording contro.
13, ° DA. REC (H)
{C
DA. REC (H) |
Bias) + 4
4 ° BIAS (H) > >
40m 40m
BLANKING signal output select.
18 ° RGB RGB SW OFF: HIGH
RGB SW ON : LOW
DC voltage (BIAS (H) detection,
6 stort creck | *When flow voage sdeecedinecorcing mode, the VOR is
“ ‘© When the high voltage is detected in excopt recording mode, the
VOR is tured of.
7 1 S.VHS PB (H) | This por is high during §-VHS playback,
18 ° PB Ala (H) ‘Al playback control.
19 ° PB AT (H) ‘A playback control.
Fig. MP1 PinNumber | InpulOutput_| Por Name Function
20 f S-TAB(L) This por is low while the cassette tape with safety tab is inserted.
HIFI audio mode detection.
2t 1 ‘ABS NORM IN | @When the low voltage is detected, the audio output ie
| compulsory normal audio mode.
2 1 NO Not used (Low setting)
‘AV2 PB (H) setting detection for VO circuit control.
23 cps ‘This port is high when AV2 PB (H) is set to high
‘This port is low when AV2 PB (H) is set to low.
‘Al mode selection.
24 1 RECA () AIPBONLY : HIGH
AIPB AND REC : LOW
25 1 RESET (U) This por is low while 1C6001 is reset.
26 1 MODE SEL ‘Active mode selection for microprocessor.
27 1 No Not used (Low setting)
Initial setting for 21 PIN Skirt Jack.
28 1 8 B MODEL HIGH
EXCEPT B MODEL: LOW
Input signal control for HIFI audio circuit.
29 ° UNE () MICITUNER: HIGH
UNE :LOW
DC voltage control for recording mode.
30 ° REO () _
REC)
REC (H) | l -—
31 ° REC (H) < es
100m t00ms
82 °. A.DUB(H) | This port is high during audio dubbing mode.
33 ° SAT (H) ‘This por is high during VOR receive the SAT signal.
‘Output signal control for AV
34 ° Ww SIGNAL FROM VCR: HIGH
SIGNAL FROM AV2: LOW
36 ° SYSTEM4 Refer to Fig. MP. 7
36 Oo SYSTEMS Refer to Fig. MP. 7
37 1 DIGITAL 6V voo
38 ° 12MHz OUT, Oscillator output.
39 1 12MHz IN Oscillator input.
Fig. MP2 Fanner | inode | Por Name Fanon
5 | sake OuT | Osoltor outa
a 1 [sete | Ostaorint
2 1 [ biertar end en
Fula ne conta,
8 o | Fubenase | GN 9
” OFF: LOW
44 ° D. REC (H) Video signal recording on/off control.
co © | B.FA REC | HIF aio dralrocning ol ene
Tis pt spel igh al og a cara ne (lo
following chart) from starting the recording to control the HIF
to ten aren
[TAPE SPEED OUTPUT |
“ o | gjewenrsvs | [scarf ease
WsG_at_|WPsee
wTSo-ait|toane
Pegi sane
Baa ease
a | RECGURT
48 ° REC CUR 2 AI REC current switching signal output.
7% oO _| necoune
50 ° AH. SW) HIFI audio head switching signal output.
31 | S.0ATAOUT | Soval data cpt
& 1 | SDATAIN | Sovaldata pat
% | s.c100K | Serial coc espa
% | 6S DATAOUT | EDITEPeofal cata unt
% 1 [ 5°S.OnTAIN | EDIT SP otal data np
56 ° ~~ | SPS. CLOCK EDIT SP serial clock output.
Gagan te ocion oa
oe 9 ery STOP : MIDDLE
Powaro :tow
% © | URRENT un | Captian oor cana ier ou
% owe ALPS cont sa out
Fig. MP3. Pin Number | InpulOuipct | Por Name Function
5 5 icvnour | Thsparsuppes me vege which depends on aio VR
‘This port supplies artificial vertical syne signal to stabilize the ‘|
cy 2 ART VN picture in special playback made.
@ 0 VIDEO H.SW | Video head switching signal output
6 ° ROTARY SW | Rotary switching signal ouput
o ° HLAMP. SW | Head amp switching signal outpu.
This por receives the playback envelope signal level o select tho
ed i ENVE SELECT video head in special playback mode.
6 1 Mic This pots high during the mics connected.
5 This por rceives the signal when take-up photo sensor detec
ee eer. the tape begining.
9 | a Tit receos the Sil when spy phot sensor ds he
NORMAUSERVICE/TEST mode selection.
INBUT VOLTAGE | MODE
6 NORMAL cy | [HORE THAN adv NORMAL]
V~4.0V__| SERVICE
TESS THAN 25V [TEST]
Syatem mode selection fr auto setup.
[INPUT VOLTAGE [MODE]
or sysrEM [MORE THAN Ov" MODE &
| [_20v~a0v _[MODE2 |
TESS THAN2.0V | MODE 1 |
Audio mode detection for display on the OSD.
[INPUT VOLTAGE | DISPLAY]
THAN 4.2V | NO DISPLAY
08 ! STEREOBIL [_MONO
BILINGUAL
0.8v~2.0V —| MONO 12
TESS THAN OY | STEREO
29 DEW SNS This por is more than 1.36V during detecting the dew formation.
Head amp IC setting for playback envelope detection.
[INPUT VOLTAGE |__1¢ |
100 amie SEL [MORE THAN 3.0V | TEAS70S
2.0V~3.0V | ANSGI6
(CEEss THAN 2.0v | AN260
vot ; a Tg orcas ho vlaps which depos nlare VR
102 1 CHROMA IN _|_AIPB Ghrominance level adjustment input
Fig. MP4 Pin Number | InputOutput_ | Por Name Function
103 1 SuTRMM Slowaracking acjustment input
TVIVTR switch set
INPUT VOLTAGE | SWITCH |
104 AV MODE SEL MORE THAN 3.0V_ z
2.0V~3.0V__ |
TESS THAN 2.07 [AV LINK
105 1 TRACKING ENVE | Playback envelope input for tracking adjustment 7
108 vo __| EDITTRIG Trigger signal ivoutput for synchronized edtng
Norma audio switching contol
NORMAL AUDIO Pa (INCLUDING INSERT): HIGH
nog be) Ce UNA IN LINE IN EE OR A. DUB MODE Low
TUNER IN EE OR A. DUB MODE z
‘Sensor LED dfve signal output
us) 2 TSNS LED (L) |e When this port supplies the low signal, the sensor LED is it.
109) vO PREROLL reroll signal in/output for synchronized editing :
110 ° SYSTEM2 Refer to Fig. MP.7
m1 ° ‘SYSTEM 1 Refer to Fig. MP. 7 7
“Aco ouput mode contol
12 vo | HiFWAXANORM mtr
STEREO LH | ROH [NORWAL]
HIFMNORM [HH | HTL
= o | ketwrew TOHIRCHISTEREOL —t—|_H_[-z 1
STEREO
Z: HIGH IMPEDANCE
114 1 piarracsv | voD
[P.swa]P.swa|P.SW1| Position (ode) Name
115 ' posmonswi | =o] 9} 9 TEREST
[0] 1] CASSETTE DOWN
- O10 PREV, REV SLOW
(0 | 1 [1 [aid (LOAD INGIUNTOADING)
6 i: EOS ON SW i 5 (0 _| PLAYREC, STILLIPAUSE, CUE,
FWD SLOW STOPS "1
a eS
lis] aa OFF MEW
117 1 Position sws | [1] —1 [1 INTERMEDIATE
(*1) The Pinch Roller is on the capstan motor shatt.
‘AV PB (A) output contro
118 o AvPAL This ports high whan AVP (H) 6 sotto high
{This por is low when AV1 PB (His set to tow.
119 1 GND GND
| Ave output contrat
120 ° Ly Av2 OUTPUT|__DEA DEB
TUNER [#1 c
avi c cL
21 ° DEB SAT tL i
verour_|—H A
Fig. MPS
3-9 es Fiton
Th ports high when measung te head and tapo cordon
wee AIMES.¢) | dstrmine the opmum scrang cent tore searing to
oy
es POWER OFF (| Power en conor
‘ea Tok) | RigpRte ow arin roa pack GUE REV SLOW,
Fig. MPG
MODE 1 MODE 2 | MODE 3 MODE 4
H: MESECAM - H: MESECAM
Pav 14 VE MES Vi: MEseoaM He MES
Bisiew 9 brat Ba BiAUTO
PIN ip tiexcerr isc | HEBECAM vi ExGePT Tse
ystems CNtSe UAL MtSean
PINs TPAC Vi: SEAM viPALA
(SYSTEM 4) L: BIGIDIK L: PAL L: BGIDIK
PIN 36 Hi PaL PAL esate HPAL
(evstem 6 tne htc Ceo NS
Z HIGH IMPEDANCE Fie. MP7
Note: 1. The mode is decided depend on SYSTEM SELECT PORT (PIN 97).
3—10 INPUT/OUTPUT CHART FOR IC7503
PinNumber | InputOutput | PortName Function
1 °. LoH FIP level meter Loh (L)
2 1 AFC (S) AFC S-CURVE
'AV2 connector detection
3 ° DEL(U) DECODER: LOW
ExT :HIGH
4 ° Lom LANK clock control
8 1 oa! oat
6 ° IOCLK ‘Tuner IC control clock
7 f IR Remote controller data
8 1 LOUK LANK clock
9 ° FSCS (H) FS chip seloct (H)
10 1 voce voce
4 ° ‘SATIR SAT IR output
12 1 POW FAIL () | Power fail detection
18 1 RESET (L) Reset (L)
14 1 sclK ‘Serial clock
18 1 SDATAIN ‘Serial data input
16 ° SDATAOUT __| Serial data input
7 ° TOUK Timer bus clock output
18 f TLSN Timer data input (from OSD)
19 °. TTL Timer data output (to OSD)
20 ° ra8Hz 126H2
at 1 NG Not used
22 0 STANDBY (| Standby (U)
23 ° NG Notused
24 ° FIP (L) FIP heater on (L)
25
26
27 1 KEY SCAN Key scan input
2
30 ° AUDIO DEF (H) | Audio defeat high outout
at ° RCH FIP level meter Roh (U)
32 ° PIT pert
33 ° P16 oGT2
4 ° PIS DGT3
35 ° Pia DeT4
Fig. MPS
