Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES3. PUT PARTS AND WIRES IN THE
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
2. USE THE DESIGNATED PARTS
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
PERFORM A SAFETY CHECK AFTER
4.
SERVICING
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING .....................................................................................
HOW TO ORDER PARTS ...........................................................................................................
Channel 3 or 4 ch. ~
Level/Impedance 66 dBµ / 75 ohm
Sound SelectorYes(G I K)No
G-21.Stereo/Dual TV Sound
Yes(NICAMGERMANUSAJAPAN)No
G-22.Video Signal
Input Level 1 Vp-p / 75 ohm
Output Level 1 Vp-p / 75 ohm
S/N Ratio 50 dB (Weighted)
Horizontal R esolution at SP Mode 230 Lines
G-23.Audio Signal
Input LevelMicrophone -- dB / -- Kohm
Line -- dB / -- Kohm
RCA - 8 dB / 50 Kohm
Output LevelLine -- dB / -- Kohm
RCA - 8 dB / 1 Kohm(0dB=0.775 Vrms)
S/N Ratio at SP Mode 42 dB (Weighted)
Harmonic Distortion : 1.5 % (1KHz)
Frequency Response :at SPMode 100 Hz ~ 10 KHz
Hi-Fi Audio SignalNONE
Depth Multiplex Recording Rotary, Slant Azimuth Two Head
System Helical Scan System
Dynamic Range : More than -- dB
Wow And Flutter : Less than -- % Wrms
Channel Separation : More than -- dB
Harmonic Distortion : Less than -- %
G-24.Heads
Video 4 Rotary Heads
FM Audio Rotary Heads
Audio / Control 1 Stationary Head ( Mono Stereo(L,R) )
Erase 1 Full Track Erase
at LPMode 100 Hz ~ 6 KHz
at SLPMode 100 Hz ~ 4 KHz
A3-2
GENERAL SPECIFICATIONS
G-26.Power Source
120 V AC 50Hz AC 60Hz
G-27.Power Consumption: 11 W at AC 120 V 60 Hz(Approx.)
Stand by: 2.5 W at AC 120 V 60 Hz(Approx.)
Per Year: -- kWh / Year
G-28.Dimensions(Approx.)
360 mm(W) 240 mm(D) 95 mm(H)
G-29.Weight(Approx.)Net : 3.2 Kg ( 7.1 lbs)
Gross : 4.6 Kg ( 10.2 lbs)
G-30.Cabinet Material
Cabinet Front: PS94HBDECABROM
ABS94V2NON-DECA
94V0
G-31.Cassette Loading System: Front Cassette Loading System
G-32.Tape Counter: Linear Time Tape Counter
G-33.Protector: Power Fuse Dew Sensor
G-34.Regulation
Content: ---- Set
Material: ---- / ---- Corrugated Carton
Dimensions: ---- mm(W) ---- mm(D) ---- mm(H)
Description of Origin Yes No
Gift BoxNeedNo Need
Material Single/BrownCorrugated Carton ( with Photo Label)
Dimensions: 450 mm(W) 345 mm(D) 195 mm(H)
Design: As Per BUYER 's
Description of Origin: YesNo
Drop TestNatural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Container Stuffing: 1,870 Sets / 40' container
Single/WhiteCorrugated Carton ( with Photo Label)
Single Full Color Carton W/Photo
Height 25cm 31cm 46cm 62cm 80cm 100cm
A3-4
G-45.Accessories
Owner's Manual (W/Guarantee Card) [English/Spanish]
Remote Control UnitDew Caution Sheet
Video Cassette TapeBattery (UM- 4 x 2 )
Safety TipToll Free Insert Sheet
Guarantee CardAudio-Video Cord (RCA)
Warning SheetQuick Set-Up Sheet
Information SheetU/V Mixer
75 ohm Coaxial Cable (Single Shield Double Shield)
300 ohm to 75 ohm VHF Antenna AdaptorRegistration Card
Car CordTape Rewinder(Buyer Supply)
G-45.Other Features
Auto Head CleaningIndex Search
Auto Tracking
CH Auto Set-Up/Auto ClockATS
VIDEO PLUS+, SHOWVIEW, G-CODEPDC
HQ (VHS Standard High Quality)VPS
Auto Power On, Auto Play, Auto Rewind, Auto Eject,Auto Power Off
Premiere/ Canal+Full OSD
Forward / Reverse Picture SearchSQPB
One Touch PlaybackSAP
CATVChannel Lock
Auto CH MemoryAnti Theft
Just Clock FunctionHotel Lock
Kurupika GuideCM Skip(30 sec. x 6 times )
RentalGame Position
Self SeekingDirty Head Warning
Energy Star
GENERAL SPECIFICATIONS
G-46.Switch
Front
Rear
PowerChannel UpChannel Down
PlayF.FWD/CueRew/Rev
Pause/StillEject/StopRec/OTR
System SelectInput SelectOutput Select
One Touch Playback
RF-Converter Output Channel Selector(1 or 2CH 3 or 4CH)
TV/CATV Selector
SIF Selector
A3-5
G-47.Remote Control
Unit:RC-DC
Glow in Dark RemoconYesNo
Power Source: D.C 3 V Battery UM - 4 x 2
Control Key:Total 42 Key
0Ch UpPower
1Ch DownEject
2Input SelectPlay
3Audio SelectStop
4TV/VCRF.FWD
5Pause/StillRew
6SlowTimer R e c
7Slow Speed UpREC/OTR
8Slow Speed DownAuto Tracking
9Skip SearchTracking Up
MenuSpeedTracking Down
Set UpTV MonitorCounter Reset
Set DownIndexClock/Counter
EnterProgramZero Return
CancelVideo PlusOne Touch Playback
CallProgram/Video Plus
GENERAL SPECIFICATIONS
A3-6
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: TOP CABINET, FRONT CABINET AND
OPERATION PCB (Refer to Fig. 1-1)
1.
Remove the 4 screws 1.
2.
Remove the Top Cabinet in the direction of arrow (A).
3.
Disconnect the following connector: (CP651).
4.
Unlock the 7 supports 2.
5.
Remove the Front Cabinet in the direction of arrow (B).
6.
Remove the 4 screws 3 and remove the Operation PCB.
Top Cabinet
1
(A)
Front Cabinet
(B)
2
2
2
2
2
3
3
2
3
3
Operation PCB
2
1-2: FLAP (Refer to Fig. 1-2)
Open Flap to 90˚ and flex in direction of arrow (A), at
1.
the same time slide in direction of arrow (B).
Then lift in direction of arrow (C).
2.
1
1
Fig. 1-1
1-3: DECK CHASSIS (Refer to Fig. 1-3)
1.
Remove the 3 screws 1.
2.
Remove the screw 2.
3.
Disconnect the following connectors: (CP1001, CP1002,
CP1003, CP4001, CP4002 and CP4003).
4.
Remove the Deck Chassis in the direction of arrow.
2
1
1
1
Deck Chassis
1
Bottom Plate
Fig. 1-3
1-4: SYSCON PCB AND JACK PLATE (Refer to Fig. 1-4)
1.
Remove the screw 1.
2.
Remove the Syscon PCB in the direction of arrow (A).
3.
Unlock the 2 supports 2.
4.
Remove the Jack Plate in the direction of arrow (B).
(C)
(B)
(A)
Flap
Fig. 1-2
Syscon PCB
(A)
(B)
2
2
Jack Plate
Bottom Plate
1
Fig. 1-4
B1-1
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Remove the 2 screws 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
When you install the Top Bracket, install the screw (1)
first, then install the screw (2).
(2)
1
Top Bracket
2
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
Top Bracket
2
Main Chassis
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the back side.
1.
Remove the Polyslider Washer 1.
2.
Remove the Flap Lever.
3.
Unlock the 3 supports 2 and remove the Tape Guide R.
4.
(1)
1
Fig. 2-1
NOTE
When you install the Tape Guide L, install as shown in the
circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
Tape Guide L
REC Lever
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-B
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
Cassette Side R
Locker R
Tape Guide R
Flap Lever
2
2
2
Main Chassis
1
Fig. 2-2
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A)
Move the Cassette Holder Ass'y to the back side.
1.
Unlock the 2 supports 1 and remove the Tape Guide L.
2.
Remove the REC Lever. (Recorder only)
3.
REC Lever
Tape Guide L
1
Cassette Side L
Main Chassis
Fig. 2-4
2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
Unlock the 4 supports 1 and then remove the Cassette
1.
Side L/R.
NOTE
When you install the Cassette Side R, be sure to move the
Locker R after installing.
1
1
Locker R
Cassette Side R
1
1
Cassette Side L
Fig. 2-5
1
Main Chassis
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
B2-1
DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6)
Set the Link Ass'y to the Eject position.
1.
Remove the (A) side of the Link Ass'y first, then remove
2.
the (B) side.
Link Ass'y
(A)
Main Chassis
(B)
Link Ass'y
Main Chassis
Fig. 2-6
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7)
Remove the Link Lever.
1.
Remove the Dumper Spring.
2.
Remove the 2 screws 1.
3.
Unlock the support 2 and remove the Loading Motor
4.
Ass'y.
Unlock the 2 supports 3 and remove the Deck PCB
5.
(BOT).
1
Dumper Spring
Loading Motor Ass'y
2
2-9: TENSION ASS'Y (Refer to Fig. 2-9-A)
Move the Inclined S Ass'y to the back side.
1.
Remove the Tension Spring.
2.
Unlock the support 1 and remove the Tension Arm
3.
Ass'y.
Remove the Tension Adjust.
4.
Unlock the 2 supports 2 and remove the Tension Band
5.
Ass'y.
Unlock the support 3 and remove the Tension Holder.
6.
Remove the SS Brake Spring.
7.
Remove the SS Arm Brake.
8.
Tension Adjust
2
Tension Spring
SS Brake Spring
SS Arm Brake
2
1
3
Tension Band Ass'y
Tension Arm Ass'y
Tension Holder
Inclined S Ass'y
Fig. 2-9-A
NOTE
When you install the Tension Adjust, install as shown in
Fig. 2-9-B. (Refer to Fig. 2-9-B)
3
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
1
Deck PCB
(BOT)
2-8: SENSOR COVER L3 (Refer to Fig. 2-8)
Unlock the support 1 and remove the Sensor Cover L3.1.
Main Chassis
Sensor Cover L3
1
Link Lever
Fig. 2-7
Fig. 2-8
Adjust the direction of the Marker to inside.
2-10: T BRAKE ASS'Y (Refer to Fig. 2-10)
Remove the T Brake Spring.
1.
Remove the T Brake Ass'y.
2.
T Brake Ass'y
T Brake Spring
Fig. 2-9-B
Fig. 2-10
B2-2
DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL (Refer to Fig. 2-11)
Remove the S Reel and T Reel.
1.
Remove the 2 Polyslider Washers 1.
2.
NOTE
Take care not to damage the gears of the S Reel and T
1.
Reel.
The Polyslider Washer may be remained on the back of
2.
the reel.
Take care not to damage the shaft.
3.
Do not touch the section "A" of S Reel and T Reel. (Use
4.
gloves.) (Refer to Fig. 2-11) Do not adhere the stains
on it.
When you install the reel, clean the shaft and oil it (FL
5.
OIL #6115). (If you do not oil, noise may be heard in FF/
REW mode.)
After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
S Reel
(A)
1
T Reel
(A)
1
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1.
When you install the Pinch Roller Block, install as shown
2.
in the circle of Fig. 2-12-B. (Refer to Fig. 2-12-B)
Fig. 2-12-B
2-13: A/C HEAD (Refer to Fig. 2-13-A)
Remove the screw 1.
1.
Remove the A/C Head Base.
2.
Remove the 3 screws 2.
3.
Remove the A/C Head and A/C Head Spring.
4.
NOTE
Do not touch the A/C Head. (Use gloves.)
1.
When you install the A/C Head Spring, install as shown
2.
in Fig. 2-13-B. (Refer to Fig. 2-13-B)
When you install the A/C Head, tighten the screw (1)
3.
first, then tighten the screw (2), finally tighten the screw
(3).
2-12: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y
(Refer to Fig. 2-12-A)
Remove the P5 Spring.
1.
Remove the screw 1.
2.
Unlock the 2 supports 2 and remove the Cassette
3.
Opener.
Remove the Pinch Roller Block, Pinch Roller Arm
4.
Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
P5 Spring
P5-3 Arm Ass'y
1
2
Cassette Opener
2
Pinch Roller Block
Pinch Roller Arm Spring
Pinch Roller Lever Ass'y
Main Chassis
Fig. 2-11
(3)
(1)
2
2
(2)
1
• Screw Torque: 4 ± 0.5kgf•cm (Screw 1)
2
Spring Position
A/C Head
A/C Head Spring
A/C Head Base
Fig. 2-13-A
Fig. 2-13-B
2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14)
Remove the screw 1.
1.
Remove the FE Head.
2.
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-12-A
B2-3
FE Head
• The FE Head is not installed on the Video Cassette Player.
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14
DISASSEMBLY INSTRUCTIONS
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-15)
Unlock the support 1 and remove the AHC Ass'y.
1.
Remove the 3 screws 2.
2.
Remove the Cylinder Unit Ass'y.
3.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
AHC Ass'y
Cylinder Unit Ass'y
2
(2)
• Screw Torque: 3 ± 0.5kgf•cm
(1)
2
2
(3)
1
Fig. 2-15
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16)
Remove the Capstan Belt.
1.
Remove the 3 screws 1.
2.
Remove the Capstan DD Unit.
3.
1
Middle Gear
E-Ring
Main Cam
Pinch Roller Cam
2
Joint Gear
P5 Cam
Fig. 2-17-A
NOTE
When you install the Pinch Roller Cam, P5 Cam and Main
Cam, align each marker. (Refer to Fig. 2-17-B)
Pinch Roller Cam
Check the hole of Main
Chassis can be seen.
Marker
Main Cam
P5 Cam
Capstan Belt
Capstan DD Unit
1
1
1
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-16
2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1, then remove the
1.
Middle Gear.
Remove the E-Ring, then remove the Main Cam, P5
2.
Cam and Pinch Roller Cam.
Remove the Polyslider Washer 2, then remove the
3.
Joint Gear.
Fig. 2-17-B
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18)
Remove the Polyslider Washer 1.
1.
Remove the Clutch Ass'y, Ring Spring and Coupling
2.
Gear.
Unlock the 2 supports 2 and remove the Clutch Lever.
3.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Clutch Lever
2
2
Fig. 2-18
B2-4
DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A)
Remove the E-Ring 1 and remove the Main Loading
1.
Gear.
Remove the Capstan Brake Spring.
2.
Slide the Main Rod and remove the Capstan Brake
3.
Ass'y.
Remove the Main Rod, Tension Lever, Clutch Actuator,
4.
Idler Arm Ass'y.
Remove the screw 2.
5.
Remove the LED Reflecter.
6.
Remove the Loading Arm S Ass'y and Loading Arm T
7.
Ass'y.
8.
Remove the Loading Gear S and Loading Gear T.
9.
Remove the Loading Gear Spring.
Capstan Brake Spring
Main Rod
Idler Arm Ass'y
LED Reflecter
Clutch Actuator
Capstan Brake Ass'y
1
2
Main Loading Gear
Tension Lever
Loading Gear T
Loading Gear
Spring
Loading Arm T Ass'y
Loading Gear S
Loading Gear
Spring
2. When you install the Clutch Actuator, install as shown in
the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C)
Clutch Actuator
Fig. 2-19-C
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20)
Unlock the support 1 and remove the P4 Cover.
1.
Remove the screw 2.
2.
Unlock the support 3 and remove the Loading Gear
3.
Holder.
Remove the Inclined S.
4.
Remove the Inclined T.
5.
Remove the 2 screws 4, then remove the Guide Roller.
6.
NOTE
Do not touch the roller of Guide Roller.
2
Loading Gear Holder
Guide Roller
3
Loading Arm S Ass'y
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-19-A
NOTES
1. When you install the Loading Arm S Ass'y, Loading Arm
T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-19-B)
Marker
Main Loading Gear
Marker
Loading Arm T Ass'y
Loading Arm S Ass'y
4
Inclined S
• Screw Torque: 5 ± 0.2kgf•cm (Screw 2)
• Screw Torque: 0.7 ± 0.2kgf•cm (Screw 4)
Guide Roller
4
Inclined T
P4 Cover
1
Fig. 2-20
Fig. 2-19-B
B2-5
A
A/C
ACC
AE
AFC
AFT
AFT DET
AGC
AMP
ANT
A.PB
APC
ASS'Y
AT
AUTO
A/V
B
BGP
BOT
BPF
BRAKE SOL
BUFF
B/W
C
C
CASE
CAP
CARR
CH
CLK
CLOCK (SY-SE)
COMB
CONV
CPM
CTL
CYL
CYL-M
CYL SENS
D
DATA (SY-CE)
dB
DC
DD Unit
DEMOD
DET
DEV
E
E
EF
EMPH
ENC
ENV
EOT
EQ
EXT
F
F
FBC
FE
FF
FG
FL SW
FM
FSC
FWD
G
GEN
GND
H
H.P.F
KEY TO ABBREVIATIONS
:
Audio/Control
:
Automatic Color Control
:
Audio Erase
:
Automatic Frequency Control
:
Automatic Fine Tuning
:
Automatic Fine Tuning Detect
:
Automatic Gain Control
:
Amplifier
:
Antenna
:
Audio Playback
:
Automatic Phase Control
:
Assembly
:
All Time
:
Automatic
:
Audio/Video
:
Burst Gate Pulse
:
Beginning of Tape
:
Bandpass Filter
:
Brake Solenoid
:
Buffer
:
Black and White
:
Capacitance, Collector
:
Cassette
:
Capstan
:
Carrier
:
Channel
:
Clock
:
Clock (Syscon to Servo)
:
Combination, Comb Filter
:
Converter
:
Capstan Motor
:
Control
:
Cylinder
:
Cylinder-Motor
:
Cylinder-Sensor
:
Data (Syscon to Servo)
:
Decibel
:
Direct Current
:
Direct Drive Motor Unit
:
Demodulator
:
Detector
:
Deviation
:
Emitter
:
Emitter Follower
:
Emphasis
:
Encoder
:
Envelope
:
End of Tape
:
Equalizer
:
External
:
Fuse
:
Feed Back Clamp
:
Full Erase
:
Fast Forward, Flipflop
:
Frequency Generator
:
Front Loading Switch
:
Frequency Modulation
:
Frequency Sub Carrier
:
Forward
:
Generator
:
Ground
:
High Pass Filter
H.SW
Hz
I
IC
IF
IND
INV
K
KIL
L
L
LED
LIMIT AMP
LM, LDM
LP
L.P.F
LUMI.
M
M
MAX
MINI
MIX
MM
MOD
MPX
MS SW
N
NC
NR
O
OSC
OPE
P
PB
PB CTL
PB-C
PB-Y
PCB
P. CON
PD
PG
P-P
R
R
REC
REC-C
REC-Y
REEL BRK
REEL S
REF
REG
REW
REV, RVS
RF
RMC
RY
S
S. CLK
S. COM
S. DATA
SEG
SEL
SENS
SER
SI
SIF
SO
SOL
SP
STB
SW
:
Head Switch
:
Hertz
:
Integrated Circuit
:
Intermediate Frequency
:
Indicator
:
Inverter
:
Killer
:
Left
:
Light Emitting Diode
:
Limiter Amplifier
:
Loading Motor
:
Long Play
:
Low Pass Filter
:
Luminance
:
Motor
:
Maximum
:
Minimum
:
Mixer, mixing
:
Monostable Multivibrator
:
Modulator, Modulation
:
Multiplexer, Multiplex
:
Mecha State Switch
:
Non Connection
:
Noise Reduction
:
Oscillator
:
Operation
:
Playback
:
Playback Control
:
Playback-Chrominance
:
Playback-Luminance
:
Printed Circuit Board
:
Power Control
:
Phase Detector
:
Pulse Generator
:
Peak-to Peak
:
Right
:
Recording
:
Recording-Chrominance
:
Recording-Luminance
:
Reel Brake
:
Reel Sensor
:
Reference
:
Regulated, Regulator
:
Rewind
:
Reverse
:
Radio Frequency
:
Remote Control
:
Relay
:
Serial Clock
:
Sensor Common
:
Serial Data
:
Segment
:
Select, Selector
:
Sensor
:
Search Mode
:
Serial Input
:
Sound Intermediate Frequency
:
Serial Output
:
Solenoid
:
Standard Play
:
Serial Strobe
:
Switch
C1-1
S
SYNC
SYNC SEP
T
TR
TRAC
TRICK PB
TP
U
UNREG
V
V
VCO
VIF
VP
V.PB
VR
V.REC
VSF
VSR
VSS
V-SYNC
VT
X
X'TAL
Y
Y/C
KEY TO ABBREVIATIONS
:
Synchronization
:
Sync Separator, Separation
:
Transistor
:
Tracking
:
Trick Playback
:
Test Point
:
Unregulated
:
Volt
:
Voltage Controlled Oscillator
:
Video Intermediate Frequency
:
Vertical Pulse, Voltage Display
:
Video Playback
:
Variable Resistor
:
Video Recording
:
Visual Search Fast Forward
:
Visual Search Rewind
:
Voltage Super Source
:
Vertical-Synchronization
:
Voltage Tuning
:
Crystal
:
Luminance/Chrominance
C1-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
MethodOperations
Press both PLAY button and
CH UP button on the set for
more than 2 seconds.
While pressing the CH UP
key on the set, press the
FF key on the set for more
than 2 seconds.
Press the ATR button on the
remote control for more than
2 seconds during PLAY.
Make the short circuit between
the test point of SERVICE and
the GND.
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
PLAY/REC total hours are displayed on the FIP.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
(CONFIRMATION OF USING HOURS).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "NOTE FOR THE REPLACING OF MEMORY IC".
Adjusting of the Tracking to the center position.
Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL
ADJUSTMENT" (PG SHIFTER).
The EOT/BOT/Reel sensor do not work at this moment.
Refer to the "PREPARATION FOR SERVICING"
C2-1
PREVENTIVE CHECKS AND SERVICE INTERVALS
The following standard table depends on environmental conditions and usage. Unless maintenance is properly
carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts.
Also, long term storage or misuse may cause transformation and aging of rubber parts.
Time
Parts Name
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
Capstan Shaft
Tape Running
Guide Post
Cylinder Unit
: Clean
: Replace
500
hours
1,000
hours
1,500
hours
2,000
hours
3,000
hours
Clean those parts in
contact with the tape.
Clean the rubber, and parts
which the rubber touches.
Replace when rolling
becomes abnormal.
Clean the Head
CONFIRMATION OF USING HOURS
PLAY/REC total hours can be checked on the FIP.
Total hours are displayed in 16 system of notation.
1.
Turn on the POWER.
2.
While pressing the CH UP button on the set, press the FF button on the set for more than 2 seconds.
3.
Adjust the ADDRESS to "7D" by SET +/- button and read the DATA.
(This DATA becomes the thousands digit and hundreds digit value of the following formula.)
4.
Adjust the ADDRESS to "7E" by SET +/- button and read the DATA.
(This DATA becomes the tens digit and ones digit value of the following formula.)
5.
After the confirmation of using hours, turn off the power.
Notes
ADDRESSDATA
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
C3-1
PREVENTIVE CHECKS AND SER VICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not
run a tape until the heads dry completely. If the heads
are not completely dry and alcohol gets on the tape,
damage may occur.
1. AUDIO CONTROL HEAD
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol and clean the audio control head by
wiping it horizontally. Clean the full erase head in the
same manner. (Refer to the figure below.)
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the
gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol. Hold it to the cylinder head softly.
Turn the cylinder head counterclockwise to clean it (in
the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move
the chamois upward or downward on the head.
Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-2
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
INI
INI
INI
INI
INI
INI
ADDRESS
DATA
ADDRESS
DATA
00
01
02
0A
02
00
INI
13
INIINIINIINIINI
1415161718
000000
03
04
64
64
0000
INI06INI07INI08INI09INI0AINI0BINI
05
4A
0A
0B268553 0C080C
INI
19
00
00
0C
Table 1
1.2.Turn on the POWER.
While pressing the CH UP key on the set, press the FF key on the set for more than 2 seconds.
ADDRESS and DATA will appear on TV Monitor as FIG 1.
ADDRESSDATA
INI
0D
INI
0E
00
INI
0F
8C
INI
10
68
INI
11
5C
INI
12
53
Fig. 1
3.
ADDRESS is now selected and should "blink". Using the FF or REW button on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using FF or REW button until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.
VSR Torque, Brake Torque (S Reel)
Guide Roller Adjustment
X Value Adjustment
Reel Disk Height Adjustment
JG100APlayback Torque, Back Tension Torque During Playback
Used to connect the test point of SERVICE and GROUNDJG154
PREPARATION FOR SERVICING
Short circuit between TP1001 and Ground with the cable JG154.
1.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
The EOT, BOT and Reel Sensor do not work at this moment.
At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
C5-1
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
••Place an object which weighs between 450g~500g on
the Cassette Tape to keep it steady when you want to
make the tape run without the Cassette Holder. (Do not
place an object which weighs over 500g.)
When you activate the deck without the Cassette
Holder, short circuit between TP1001 and GND. (Refer
to ELECTRICAL ADJUSTMENT PARTS LOCATION
GUIDE) In this condition the BOT/EOT/Reel Sensor will
not function.
CONFIRMATION AND ADJUSTMENT OF REEL
1-1:
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height
adjustment jig (JG024A) on the mechanism framework,
taking care not to scratch the drum, as shown in Fig. 1-1-A.
3.
Confirm that "A" of the reel disk is lower than "B" of the
reel disk height adjustment jig (JG024A) , and is higher
than "C". If it is not enough height, adjust to 10(+0.2, -0)
mm with the height adjustment washer.
4.
Adjust the other reel in the same way.
Master Plane (JG022)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the Tension Adjust until the edge of the Tension
Arm is positioning within 0.5mm range from the
standard line center of Main Chassis.
After this adjustment, confirm that the cut position is
located in "A" area as shown in Fig. 1-2-B. If it is
located in "B" area, adjust again.
3.
While turning the S Reel clockwise, confirm that the
edge of the Tension Arm is located in the position
described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Standard line center of Main Chassis
Tension Adjust
Fig. 1-2-A
Master Plane (JG022)
10(+0.2, -0)mm
Reel Disk Height Adjustment Jig
(JG024A)
Reel Disk
Height Adjustment
Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Reel Disk Height
Adjustment Jig
(JG024A)
(B)
(A)
Fig. 1-1-A
(C)
Fig. 1-1-B
(A)
Cut Position
(B)
Tension Adjust
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
Load a video tape (T-120) recorded in standard speed
1.
mode. Set the unit to the PLAY mode.
Install the tentelometer as shown in Fig. 1-3. Confirm that
2.
the meter indicates 20 ± 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
After confirmation and adjustment of Tension Post
position (Refer to item 1-2), load the cassette type
torque tape (JG100A) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates
60~110gf•cm during playback in SP mode.
3.
Confirm that the left meter of the torque tape indicates
25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
D1-1
P1 Post
Guide Roller
Fig. 1-3
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Operate within 4~5 seconds after the reel disk begins to
1.
turn.
Install the Torque Gauge (JG002F) and Adapter (JG002B)
2.
on the S Reel. Set to the Rewind mode. (Refer to Fig.1-4)
Then, confirm that it indicates 120~180gf•cm.
3.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the
REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4)
Set to the STOP mode.
1.
Move the Idler Ass'y from the S Reel.
2.
Install the Torque Gauge (JG002F) and Adapter
3.
(JG002B) on the S Reel. Turn the Torque Gauge
(JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
4.
(T Reel Brake) (Refer to Fig. 1-4)
Set to the STOP mode.
1.
Move the Idler Ass'y from the T Reel.
2.
Install the Torque Gauge (JG002E) and Adapter
3.
(JG002B) on the T reel. Turn the Torque Gauge
(JG002E) counterclockwise.
Then, confirm that it indicates 45~70gf•cm.
4.
Torque Gauge/Adapter
(JG002F/JG002B)
2. CONFIRMATION AND ADJUSTMENT
OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the
factory. Adjustment is not necessary as usual. When you
replace the parts of the tape running mechanism because
of long term usage or failure, the confirmation and
adjustment are necessary.
2-1: GUIDE ROLLER
Playback the VHS Alignment Tape (JG001 or JG001B).
1.
(Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001(Envelope)
2.
and CH-2 to TP1002(SW Pulse).
Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center.
Trigger with SW Pulse and observe the envelope. (Refer
4.
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting
5.
Driver (JG005) slightly until the envelope will be flat.
Even if you press the Tracking Button, adjust so that
flatness is not moved so much.
Adjust so that the A : B ratio is better than 3 : 2 as shown
6.
in Fig. 2-1-B, even if you press the Tracking Button to
move the envelope (The envelope waveform will begin to
decrease when you press the Tracking Button).
Adjust the PG shifter during playback.
7.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Torque Gauge/Adapter
(JG002E/JG002B)
S Reel
T Reel
Fig. 1-4
NOTE
If the torque is out of the range, replace the following
parts.
Check item
1-4
1-5
Replacement Part
Idler Ass'y/Clutch Ass'y
T Brake Spring/Tension Spring
Envelope
CH-3
Audio
Max
CH-1
Envelope
(TP4001)
CH-1
CH-2
Track
Track
CH-2
SW Pulse (TP1002)
(1)
(2)
EntranceExit
A
B
Fig. 2-1-A
Max
D1-2
A : B = 3 : 2
Fig. 2-1-B
MECHANICAL ADJUSTMENTS
CONFIRMATION AND ADJUSTMENT OF AUDIO/
CONTROL HEAD
When the Tape Running Mechanism does not work well,
adjust the following items.
1.
Playback the VHS Alignment Tape (JG001 or JG001B).
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Confirm that the reflected picture of stamp mark is
appeared on the tape prior to P4 Post as shown in Fig.2-2-A.
a)
When the reflected picture is distorted, turn the screw
1 clockwise until the distortion is disappeared.
b)
When the reflected picture is not distorted, turn the
screw 1 counterclockwise until little distortion is
appeared, then adjust the a).
3.
Turn the screw 2 to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and
the bottom of the tape is shown in Fig. 2-2-C.
c)
When the height is not correct, turn the screw 3 to
adjust the height. Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of
Stamp Mark
P4 Post
Audio/Control Head
3
Stamp Mark
1
Fig. 2-2-A
2-3:2-2:
TAPE RUNNING ADJUSTMENT
(X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
1.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
2.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
3.
Confirm and adjust the Audio/Control Head.
4.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
5.
TP1002 and CH-3 to HOT side of Audio Out Jack.
Playback the VHS Alignment Tape (JG001S or JG001T).
6.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
7.
control more than 2 seconds to set tracking to center.
Set the X Value adjustment driver (JG153) to the 4 of
8.
Fig. 2-2-B. Adjust X value so that the envelope waveform
output becomes maximum. Check if the relation between
Audio and Envelope waveform becomes (1) or (2) of Fig.
2-1-A.
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
1.
TP1002 and CH-3 to the Hi-Fi Audio Out Jack.
Playback the VHS Alignment Tape (JG001P or JG001Q).
2.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center.
Press the Tracking Up button and count number of steps
4.
which the audio output is changed from Hi-Fi (10KHz) to
MONO (6KHz).
Press the Tracking Down button and count number of
5.
steps which the audio output is changed from Hi-Fi
(10KHz) to MONO (6KHz).
Confirm that the difference between these counted steps
6.
number in the above items are within 2 steps. If the
difference are more than 3 steps, do Tape Running
Adjustment again. (Refer to item 2-3)
2
Audio/Control Head
Tape
4
Fig. 2-2-B
0.25±0.05mm
Fig. 2-2-C
D1-3
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
4
3
2
5
6
7
1
10
1. Tension Adjust
2. Tension Arm
3. Guide Roller
4. P1 Post
5. Audio/Control Head
6.
X value adjustment driver hole
7.
P4 Post
8.
T Brake Spring
9.
T Reel
10.
S Reel
9
8
D1-4
ELECTRICAL ADJUSTMENTS
Read and perform this adjustment when repairing the
circuits or replacing electrical parts or PCB assemblies.
1. BASIC ADJUSTMENT
CAUTION
When replacing IC's or transistors, use only specified
silicon grease (YG6260M).
(To prevent the damage to IC's and transistors.)
Connect CH-1on the oscilloscope to TP1002 and CH-2
to TP4201.
2.
Playback the alignment tape. (JG001B)
3.
Press and hold the Tracking-Auto button on the remote
control more than 2 seconds to set tracking to center.
4.
While pressing the CH UP button on the set, press the
STOP button on the set for more than 2 seconds. if the
indicator ATR disappear's, the adjustment is finished.
31085OP200292 REEL,T (S)51282Q2647C5N POLYSLIDER WASHER2.6x4.7xT0.25
31185OA300061 LOADING ARM S ASS'Y51382P184505N POLYSLIDER WASHER(CUT)1.8x4.5xT0.5
31285OA300062 LOADING ARM T ASS'Y51483ETW30000 E-RING3.0
31385OA400209 GUIDE ROLLER ASS'Y515810A126504 SCREW/WASHER(A)M2.6x5
31485OA400188 BASE,INCL S ASS'Y
31585OA400196 BASE,INCL T(S) ASS'YCP101069R740018 CONNECTOR PCB SIDE52044-0445
31685OA400199 P5-3 ARM ASS'Y(S)H50011523D91034 HEAD (AUDIO CONTROL)HVMXA1072A
31785OA400205 PINCH ROLLER BLOCKH50021543D02013 HEAD (FULL ERASE)HVFHP0032A
31885OA400175 TENSION ARM ASS'Y ! M1011596P78001 MOTOR (LOADING)MXN13FB11H
31985OA400184 TENSION BAND ASS'Y (S) ! M20011510398030 CAPSTAN DD UNITF2QSB02
32085OA400178 PINCH ROLLER LEVER ASS'YPCB550A4C831B550 DECK PCB ASS'YVE8851
32185OA600188 BRAKE T ASS'Y (S)Q1010000700320 TRANSISTOR,PHOTORPT-38PB113
32285OA600191 CAP BRAKE ASS'Y(S) ! UN4001A4C831B500 CYLINDER UNIT ASSYA4C831B500
32385OA900213 LINK ASS'Y
32485OA900216 LINK LEVER ASS'Y
32585OP200284 LEVER,CLUTCH (S)
32685OP200285 ACTUATOR,CLUTCH
32785OP200298 GEAR,COUPLING(S2)
32885OP200291 REEL,S (S)
32985OP600541 WORM
34085OP600544 GEAR,MIDDLE
34185OP600554 CAM,MAIN (S)
34285OP600546 CAM,P5
34385OP600565 CAM,PINCH ROLLER
34485OP600561 ROD,MAIN(S)
34585OP700035 REFLECTOR,LED
34685OP800318 SPRING,LOADING GEAR
34785OP800334 SPRING,P5 (S)
34885OP800335 SPRING,BRAKE T (S)
34985OP800322 SPRING,TENSION
35085OP800336 SPRING,CAP BRAKE (S)
35185OP800342 SPRING,LOCKER (S)
35285OP800326 SPRING,LINK
35385OP800328 SPRING,DAMPER
35485OP800330 SPRING,RING
35585OP800337 SPRING,SS BRAKE (S)
35685OP900680 OPENER,CASS
35785OP900704 CASS,SIDE L
35885OP900684 CASS,SIDE R
35985OP900709 TAPE GUIDE L (P,R)