Toshiba MV19K3C User manual

MV19K3C
Televisión y Videograbadora
Precauciones de servicio durante la revisión
Especificaciones generales
Instrucciones de desensamble
Clave para abreviaturas
Lista de modos de servicio
Revisiones preventivas e intervalos de servicio
Nota para el reemplazo del IC de memoria
Jigs de servicio y herramientas
Ajustes mecánicos
Ajustes eléctricos
Diagramas a bloques
Placas de circuitos impresos
Diagrama esquemático
Formas de onda
Vistas explotadas mecánicas
Vistas explotadas del chasis (para ver)
Lista de partes de reemplazo mecánicas
Lista de partes de reemplazo del chasis
Lista de partes de reemplazo eléctricas

SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
FILE NO. 140-200006
MV19K3C

SERVICING NOTICES ON CHECKING
6. AVOID AN X-RAY1. KEEP THE NOTICES
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.
3. USE THE DESIGNATED PARTS
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
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.
HOW TO ORDER PARTS
PERFORM A SAFETY CHECK AFTER
SERVICING
7.
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.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone jack
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
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.
4. PUT PARTS AND WIRES IN THE
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.

GENERAL SPECIFICATIONS
G-1.Outline of the Product
19 inch( 480.0 mmV):Measured diagonally
Color CRT 90 degree deflection
2 -Speed 1/2" Video Cassette Recorder
VHS Recorder/Player
VHS-C Player
G-2.VCR Format
VHS Standard NTSC PAL SECAM PAL-M PAL-N
VHS Hi-Fi Audio System
G-3.Video Recording System :Rotary,slant azimuth two head helical scan system
Luminance Component :FM recording
Chrominance Component :Low frequency converted direct recording
G-4.Broadcasting System US System M
G-5.Color System NTSC PAL SECAM or Monochrome signal
G-6.NTSC Playback(PAL 60Hz) Yes No Not Applicable
G-7.MESECAM Yes No Not Applicable
G-8.Cassette Tape
VHS type video cassette tape Width 12.65mm (1/2 Inch)
VHS-C type video cassette tape Width 12.65mm (1/2 Inch)
G-9.Tape Speed
NTSC or PAL-M PAL or SECAM
SP 33.35 mm/sec SP 23.39 mm/sec
LP 16.67 mm/sec LP 11.69 mm/sec
SLP(EP) 11.12 mm/sec
G-10.Recording/Playback Time
NTSC or PAL-M
at SP Mode Max. 210 min. (with T-210 cassette)
at LP Mode Max. 420 min. (with T-210 cassette)
at SLP(EP) Mode Max. 630 min. (with T-210 cassette)
PAL or SECAM
at SP Mode Max. 300 min. (with E-300 cassette)
at LP Mode Max. 600 min. (with E-300 cassette)
G-11.Deck OVD-5 OVD-6 OVD-6S
G-12.Rewind/Fast Forward Time(Approx.)
FF:2'15" / Rew:1'48" (with T-120 cassette) (with E-180 cassette)
G-13.Search Speed
SP 3 and 5 Times
LP Times
SLP(EP) 9 and 15 Times
G-14.Slow Speed
SP Times
LP Times
SLP(EP) Times
G-15.Frame Advance
SP Times
LP Times
SLP(EP) Times

GENERAL SPECIFICATIONS
G-16.Antenna Input Impedance
VHF/UHF 75 ohm unbalanced
G-17.Tuner and Receiving channel 1Tuner System 2Tuner System BS Tuner
Tuner : Contactless Electric tuner
Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV) Others
channel coverage 2~69, 4A , A-5 ~ A-1 , A ~ I , J ~ W , W+1 ~ W+84
Tuning System
Frequency syn. Voltage syn. Others
G-18.Preset Channel: -- channels
G-19.Intermediate Frequency
Picture(FP) 45.75 MHz MHz MHz
Sound (FS) 41.25 MHz MHz MHz
FP-FS 4.50 MHz MHz MHz
G-20. Stereo/Dual TV Sound
Yes( NICAM GERMAN USA JAPAN JAPAN BS) No
G-21.Video Signal
Input Level 1 Vp-p / 75 ohm
Output Level 1 Vp-p / 75 ohm
S/N Ratio 50 dB (Weighted)
Horizontal Resolution at SP Mode 220 Lines
G-22.Audio Signal
Input Level
Line - dB / - Kohm
RCA - 8 dB/ 50 Kohm
Output Level
Line - dB / - Kohm
RCA - 8 dB/ 1 Kohm
(0dB=0.775 V rms)
S/N Ratio at SP Mode 38 dB
Harmonic Distortion : 1.5 % (1KHz)
Frequency Response : at SP Mode 100 Hz ~ 10 KHz
at LP Mode Hz ~ KHz
at SLP(EP) Mode 100 Hz ~ 4 KHz
Hi-Fi Model’s Spes NONE
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-23.Heads Video 2 Rotary Heads Track Width(SP/LP/SLP : 1ch 26 µm, 2ch 31 µm)
FM Audio Rotary Heads Track Width(SP/LP/SLP : 1ch µm, 2ch m)
Audio / Control 1 Stationary Head ( Mono Stereo(L,R) )
Erase 1 Full Track Erase

GENERAL SPECIFICATIONS
G-24.Motor: 3 Motors
Tape/Cassette Loading
Cylinder (Direct Drive)
Capstan (Direct Drive)
G-25.Power Source
120 V AC 50Hz AC 60Hz
EXT DC Jack - V
G-26.Power Consumption: 86 W at AC 120 V 60 Hz(Approx.)
- WatDC - V
(at TV and VCR ON)
Stand by: 6 W at AC 120 V 60 Hz(Approx.)
Per Year: --- kWh / Year
G-27.Dimensions(Approx.) 489 mm(W) 462 mm(D) 480 mm(H)
G-28.Weight(Approx.) Net : 22.0 Kg ( 48.6 lbs)
Gross: 25.0 Kg ( 55.2 lbs)
G-29.Cabinet Material
Cabinet Front: PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
Cabinet Rear: PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
Jack Panel: PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
G-30.Cassette Loading System: Front Cassette Loading System Top Loading System
G-31.Tape Counter: Linear Time Tape Counter
G-32.Protector: Power Fuse Dew Sensor
G-33.Regulation
Safety
UL CSA SAA SI CE SEV
BS NF NEMKO FEMKO DEMKO IEC65
SEMKO NZ HOMOLO SABS CNS SISIR
NOM AS3159 DENTORI UNE GOST NONE
Radiation
FCC DOC FTZ PTT CE SEV
SABA SI NF NZ HOMOLO UNE
CNS CISPR13 DENTORI AS/NZS NONE
X-Radiation
DHHS HWC PTB DENTORI NONE
G-34.Temperature
Operation 5 ºC ~ 40 ºC
Storage -20 ºC ~ 60 ºC
G-35.Operating Humidity Less than 80 %RH
G-36.Clockand Timer
Calender : 1990/1/1 ~ 2081/12/31
Built-in 1 Month 8 Events Programmable Timer
One Touch Recording : Max Time 5 Hours
Sleep Timer Yes Max 120 Min.( 10 Min. Step) No
On/Off Timer Yes 1 Programs No
Wake Up Timer Yes Programs No
Auto Shut Off 15 Minutes

GENERAL SPECIFICATIONS
G-37.Timer back up Time
More than 1/12 Minutes (at Power Off Mode)
G-38.Terminals VHF/UHF Antenna Input Din Type F-Type FranceType
Front Video Input<RCA ø8.3>
Front Audio Input<RCA ø8.3>
RearVideo Input<RCA ø8.3>
RearAudio Input<RCA ø8.3>
RearVideo Output<RCA ø8.3>
RearAudio Output<RCA ø8.3>
EarPhone Jack(ø3.5) HeadPhone Jack(Stereo & Mono, ø3.5)
DC Jack 12V(Center +) AC Inlet Ext Speaker
Diversity Ear Phone 21 Pin (x )
G-39.Indicator
Indicator Power Rec/OTR T-Rec On Timer CS NONE
(Red) (Red) (Red) ( )()
G-40.On Screen Display
Menu Timer Rec Set
Ch Set Up TV/CATV Auto Ch Memory
Add/Delete Guide Ch Set
TV Set Up V-Chip Set On/Off Timer
Picture Audio
Sap On/Off
Auto Repeat On/Off
System Set Up Clock Set( Calender 12H 24H)
Language Auto Clock On/Off
Standard Time Daylight Saving Time
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
Clock/Date CH/AV
Tape Counter Tape Speed
Sleep Time Tape In
Control Level (Vol,Bright,Cont,Color,Tint,Sharpness)
Control Level (Vol,Bright,Cont,Color,Sharpness)
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject(Symble Mak)
Auto Tracking/Manual Tracking Caption/Text 1/2
Index Repeat
Add/Delete Auto Wide On/Off
Wide Select Picture Position
Tone 1/2 Stereo
Muting
G-41.OSD Language
Eng Ger Fre Spa Ita Por Jan
OSD Language Setting
Eng Ger Fre Spa Ita Por Jan Not Applicable

GENERAL SPECIFICATIONS
G-42.SpeakerPosition Front Side Bottom
Size 3 inches
Imp. 8 ohm x 1 pcs
Output Max 2.5 W
10% 2.0 W (Typical)
G-43.EXT Speaker
Yes W Imp ohm No
G-44.Carton
Master Carton: Need No Need
Content: ---- Set
Material: ---- / ---- Corrugated Carton
Dimensions: ---- mm(W) ---- mm(D) ---- mm(H)
Description of Origin Yes No
Gift Box
Material Double/Brown Corrugated Carton ( with Photo Label)
Double/White Corrugated Carton ( with Photo Label)
Double Full Color Carton W/Photo
Dimensions: 559 mm(W) 538 mm(D) 555 mm(H)
Design: As Per BUYER 's
Description of Origin: Yes No
Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Height 25cm 31cm 46cm 62cm 80cm
Container Stuffing: 352 Sets / 40' container
G-45.Accessories
Channel Film Dew/AHC Caution Sheet
Owner's Manual ( W/Guarantee Card) [English/French]
Remote Control Unit AC Plug Adaptor
Rod Antenna ( One Pole Two Pole/ F-Type DIN Type France Type)
Loop Antenna( F-Type DIN Type France Type)
U/V Mixer Quick Set-up Sheet
DC Car Cord (Center+) Battery (UM- 4 x 2 )
Guarantee Card AC Cord
Warning Sheet AV Cord (2Pin-1Pin)
Circuit Diagram Registration Card
Antenna Change Plug PTB Sheet
Service Facility List 300 ohm to 75 ohm Antenna Adaptor
Important Safeguard Euro Warranty Information Sheet
G-46.Other Features
Auto Head Cleaning Index Search
Auto Tracking Auto Search
Auto Clock CS Kantan Record
VIDEO PLUS+(SHOWVIEW,G-CODE) Choke Coil
HQ (VHS Standard High Quality) BS
Auto Power On, Auto Play, Auto Rewind, Auto Eject
Forward / Reverse Picture Search SQPB
One Touch Playback CATV
Auto CH Memory CM Skip(30sec x 6Times)
Just Clock Function Area Code
Closed Caption Standby Power Save
TV Auto Shutt off Function Energy Star
NTSC Playback PAL TV (PAL 60Hz) Comb Filter
End Call TV Monitor
V-chip( USA CANADA) Program Extend
SAP

GENERAL SPECIFICATIONS
G-47.Switch
Front Power Channel Up Volume Up
Play Channel Down Volume Down
Pause/Still F.FWD/Cue Rew/Rev
System Select Eject/Stop Rec/OTR
One Touch Playback Main Power SW
Rear Color On/Off (SECAM only) Degauss
Main Power SW AC/DC
G-48.Magnetic Field
BV : +0.45G BV : +0.35G BV : +0.25G
BH : 0.18G BH : 0.30G BH : 0.30G
BV : -0.15G BV : -0.25G BV : -0.50G
BH : 0.15G BH : 0.15G BH : 0.30G
G-49.Remote Control Unit:
Unit: RC-DA
Format : NEC
Custom Code : 40-BF/44-BB h
Glow in Dark Remocon Yes No
Power Source: D.C 3 V Battery UM - 4 x 2
Total 41 Keys
0 Power Tracking Auto
1 Rec/OTR Tracking Up/Set +
2 Play Tracking Down/Set -
3 F.Fwd Menu
4 Rew Enter
5 Pause/Still Cancel
6 Stop Muting
7 Eject Volume Up
8 Timer Rec Volume Down
9 TV/Caption/Text Ch Up
Sleep Timer Index Ch Down
Quick View Zero Return Input Select
TV Monitor Counter Reset Speed
Call CM Skip(Skip Search) Audio Select(for Hi-Fi)
Slow(for 4Head)
Program(without V+) VCR PLUS+/Program(with V+)

DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
2.
3.
4.
Remove the 6 screws 1.
Remove the 2 screws 2which are used for holding the
Back Cabinet.
Remove the AC cord from the AC cord hook 3.
Remove the Back Cabinet in the direction of arrow.
Fig. 1-1
Front Cabinet
1-2: CRT PCB (Refer to Fig. 1-2)
CAUTION: BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT
CONTAINS HIGH VOLTAGE.
BEFORE ATTEMPTING TO REMOVE OR
REPAIR ANY PCB, UNPLUG THE POWER
CORD FROM THE AC SOURCE.
1.
2.
3.
Fig. 1-2
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
1.
2.
3.
4.
Remove the 2 screws 1.
Disconnect the following connectors:
(CP355, CP353, CP401, CP502 and CP351).
Unlock the support 2.
Remove the TV/VCR Block in the direction of arrow.
Fig. 1-3
1-4: MAIN PCB (Refer to Fig. 1-4)
1.
2.
3.
4.
5.
6.
Remove the screw 1.
Remove the Main PCB Holder.
Remove the 2 screws 2.
Remove the 3 screws 3.
Disconnect the following connectors:
(CP810, CP820 and CP804).
Remove the Main PCB in the direction of arrow.
Main PCB
Fig. 1-4
Front Cabinet CRT PCB
Remove the Anode Cap.
(Refer to REMOVAL OF ANODE CAP)
Disconnect the following connectors:
(CP801 and CP850).
Remove the CRT PCB in the direction of arrow.
2
UP TO
RELEASE
1
TV/VCR Block
Front Cabinet
1
2
2
333
Main PCB Holder
1
VCR Block
1
1
2
2
1
1Back Cabinet
3
1
1

DISASSEMBLY INSTRUCTIONS
1-5: DECK SHIELD PLATE (Refer to Fig. 1-5)
1.
2.
3.
4.
1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7)
1.
2.
3.
4.
5.
6.
7.
Remove the screw 1.
Remove the Syscon PCB in the direction of arrow (A).
Remove the screw 2.
Remove the nut 3.
Remove the washer 4.
Unlock the 2 supports 5.
Remove the Jack Plate in the direction of arrow (B).
Jack Plate
1
Deck Holder
Syscon PCB
(A)
2
5
5
(B)
3
4
Fig. 1-7
Remove the 2 screws 1.
Remove the screw 2.
Remove the screw 3.
Remove the Deck Shield Plate in the direction of arrow.
1
Deck Shield Plate
Fig. 1-5
1-6: DECK CHASSIS (Refer to Fig. 1-6)
1.
2.
3.
Remove the 3 screws 1.
Disconnect the following connectors:
(CP1002, CP1005, CP1006, CP4001, CP4004 and
CP4005).
Remove the Deck Chassis in the direction of arrow.
11
1
Deck Chassis
Syscon PCB
Fig. 1-6
2
1
VCR Block
3

DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Remove the 2 screws 1.
Slide the 2 supports 2and remove the Top Bracket.
1.
2.
NOTE
When you install the Top Bracket, install the screw (1)
first, then install the screw (2).
1
(2)
Top Bracket Top Bracket
Main Chassis
Main Chassis
2
1
(1)
2
Fig. 2-1
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the back side.
Remove the Polyslider Washer 1.
Remove the Flap Lever.
Unlock the 3 supports 2and remove the Tape Guide R.
1.
2.
3.
4.
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)
REC Lever
Tape Guide L
• 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.
Push the Locker R to remove the Cassette Side R.
Remove the Cassette Side L.
1.
2.
3.
Main Chassis
Main Chassis
Cassette Side L
Cassette Side R Locker R
Fig. 2-4
2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
Remove the Locker Spring.
Unlock the 4 supports 1and then remove the Cassette
Side L/R.
1.
2.
NOTE
When you install the Cassette Side L/R, be sure to move
the Locker L/R after installing.
Locker Spring
Cassette Side L
Cassette Side R
1
1
1
Locker L
Locker R 1
Fig. 2-5
• Screw Torque: 5 ±0.5kgf•cm
2
2
Flap Lever
Tape Guide R
Main Chassis Fig. 2-2
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A)
Move the Cassette Holder Ass'y to the back side.
Unlock the 2 supports 1and remove the Tape Guide L.
Remove the REC Lever. (Recorder only)
1.
2.
3.
1
Main Chassis
Tape Guide L
REC Lever
Fig. 2-3-A
• The REC Lever is not installed on the Video Cassette Player.
2
1
1

DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6)
Set the Link Ass'y to the Eject position.
Remove the (A) side of the Link Ass'y first, then remove
the (B) side.
1.
2.
Main Chassis
(A)
Main Chassis
Link Ass'y
Fig. 2-6
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7)
Remove the Link Lever.
Remove the Dumper Spring.
Remove the 2 screws 1.
Unlock the support 2and remove the Loading Motor
Ass'y.
Unlock the 2 supports 3and remove the Deck PCB
(BOT).
1.
2.
3.
4.
5.
2-9: TENSION ASS'Y (Refer to Fig. 2-9-A)
Move the Inclined S Ass'y to the back side.
Unlock the support 1and remove the S Reel Stopper.
Remove the Tension Spring.
Unlock the support 2and remove the Tension Arm
Ass'y.
Remove the Tension Adjust.
Unlock the 2 supports 3and remove the Tension Band
Ass'y.
Unlock the support 4and remove the Tension Holder.
1.
2.
3.
4.
5.
6.
7.
Tension Holder
4
2
Tension Adjust
Tension Band Ass'y
Tension Arm Ass'y
1
Tension Spring
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)
Adjust the direction of the Marker to inside.
Fig. 2-9-B
2-10: T BRAKE ASS'Y (Refer to Fig. 2-10)
Remove the T Brake Spring.
Remove the T Brake Ass'y.
1.
2.
T Brake Ass'y
Fig. 2-10
S Reel Stopper
3
3
T Brake Spring
1
2
1
Loading Motor Ass'y
Link Lever
Main Chassis
• Screw Torque: 5 ±0.5kgf•cm Fig. 2-7
2-8: SENSOR COVER L (Refer to Fig. 2-8)
Unlock the support 1and remove the Sensor Cover L.
Unlock the 2 supports 2and remove the Deck PCB
(EOT).
1.
2.
Deck PCB
(BOT)
Main Chassis
Sensor Cover L
2
2
1
Fig. 2-8
Deck PCB
(EOT)
Link Ass'y
(B)
Dumper Spring
3

DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL ASS'Y (Refer to Fig. 2-11)
Remove the Idler Ass'y.
Remove the S Reel and T Reel Ass'y.
Remove the 2 Polyslider Washers 1.
1.
2.
3.
NOTE
Take care not to damage the gears of the S Reel, T
Reel Ass'y and Idler Ass'y.
The Polyslider Washer may be remained on the back of
the reel.
Take care not to damage the shaft.
Do not touch the section "A" of S Reel and T Reel Ass'y.
(Use gloves.) (Refer to Fig. 2-11) Do not adhere the
stains on it.
When you install the reel, clean the shaft and oil it. (If
you do not oil, noise may be heard in FF/REW mode.)
After installing the reel, adjust the height of the reel.
(Refer to MECHANICAL ADJUSTMENT)
1.
2.
3.
4.
5.
6.
NOTE
Do not touch the Pinch Roller. (Use gloves.)
When you install the Pinch Roller Ass'y, install as
shown in the circle. (Refer to Fig. 2-12-B)
1.
2.
Fig. 2-12-B
2-13: A/C HEAD (Refer to Fig. 2-13-A)
Remove the screw 1.
Remove the A/C Head Base.
Remove the 3 screws 2.
Remove the A/C Head and A/C Head Spring.
1.
2.
3.
4.
NOTE
Do not touch the A/C Head. (Use gloves.)
When you install the A/C Head Spring, install as shown
in Fig. 2-13-B. (Refer to Fig. 2-13-B)
When you install the A/C Head, tighten the screw (1)
first, then tighten the screw (2), finally tighten the screw
(3).
1.
2.
3.
A/C Head
2
2
A/C Head Spring
1
Spring Position
(3)
(1)
2
(2)
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.
Remove the FE Head.
1.
2.
1
FE Head
• The FE Head is not installed on the Video Cassette Player. Fig. 2-14
Idler Ass'y
S Reel
T Reel Ass'y
1
1
(A)
(A)
Fig. 2-11
2-12: PINCH ROLLER ASS'Y/P5 ARM ASS'Y
(Refer to Fig. 2-12-A)
Remove the P5 Spring.
Remove the screw 1.
Unlock the 2 supports 2and remove the Cassette
Opener.
Remove the Pinch Roller Ass'y, P/R Arm Spring, Pinch
Roller Lever and P5 Arm Ass'y.
1.
2.
3.
4.
• Screw Torque: 5 ±0.5kgf•cm
Cassette Opener
2
Pinch Roller Lever
Main Chassis
2
Pinch Roller Ass'y
1
P5 Spring
Fig. 2-12-A
P/R Arm Spring
P5 Arm Ass'y

DISASSEMBLY INSTRUCTIONS
1
2
3
E-Ring
Middle Gear
Main Cam
Pinch Roller Cam
Link Lever Spacer 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
P5 Cam
Main Cam
Marker
Check the hole of Main
Chassis can be seen.
Fig. 2-17-B
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18)
Remove the Polyslider Washer 1.
Remove the Clutch Ass'y, Ring Spring, Ring Clutch,
Gear Clutch and Polyslider Washer 2.
1.
2.
NOTE
When you install the Clutch Ass'y, oil the shaft.
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-15)
Unlock the support 1and remove the AHC Ass'y.
Remove the 3 screws 2.
Remove the Cylinder Unit Ass'y.
1.
2.
3.
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.
NOTE
2
(3)
2
(1)
2
(2)
Cylinder Unit Ass'y 1
AHC Ass'y
• Screw Torque: 5 ±0.5kgf•cm Fig. 2-15
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16)
Remove the Capstan Belt.
Remove the 3 screws 1.
Remove the Capstan DD Unit.
1.
2.
3.
11
1
Capstan Belt
Capstan DD Unit
• 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
Middle Gear.
Remove the E-Ring, then remove the Main Cam, Link
Lever Spacer and P5 Cam.
Remove the Polyslider Washer 2, then remove the
Pinch Roller Cam.
Remove the Polyslider Washer 3, then remove the
Joint Gear.
1.
2.
3.
4.
1
Clutch Ass'y
Ring Spring
Ring Clutch
Gear Clutch
2
Fig. 2-18
App. 5mm

DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A)
Remove the E-Ring 1and remove the Main Loading
Gear.
Remove the Capstan Brake Spring.
Slide the Main Rod and remove the Capstan Brake
Arm Ass'y.
Remove the Main Rod.
Remove the Tension Lever.
Unlock the 2 supports 2and remove the Clutch Lever.
Remove the screw 3.
Remove the LED Reflecter.
Remove the Loading Arm S Ass'y and Loading Arm T
Ass'y.
Remove the Loading Gear S and Loading Gear T.
Remove the Loading Gear Spring.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1
2
23
Loading Gear T
Capstan Brake Arm Ass'y
Capstan Brake Spring
Main Loading Gear
Main Rod
Tension Lever
Clutch Lever
Loading Arm T Ass'y
Loading Gear S
LED Reflecter
Fig. 2-19-A
NOTE
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)
Loading Arm T Ass'y
Main Loading Gear
Marker
Marker
Loading Arm S Ass'y
Fig. 2-19-B
Loading Arm S Ass'y
Loading Gear
Spring
Loading Gear
Spring
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20)
Unlock the support 1and remove the P4 Cover.
Remove the S-S Brake Spring.
Unlock the support 2and remove the Loading Gear
Holder.
Remove the S-S Brake Arm.
Remove the Inclined S.
Remove the Inclined T.
Remove the 2 screws 3, then remove the Guide Roller.
1.
2.
3.
4.
5.
6.
7.
NOTE
Do not touch the roller of Guide Roller.
3
2S-S Brake Spring
Guide Roller
Loading Gear Holder
S-S Brake Arm
Inclined S
• Screw Torque: 0.7 ±0.2kgf•cm Fig. 2-20
3
Guide Roller
Inclined T
P4 Cover
1

3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
After turning the power off there might still be a potential
voltage that is very dangerous. When removing the
Anode Cap, make sure to discharge the Anode Cap's
potential voltage.
Do not use pliers to loosen or tighten the Anode Cap
terminal, this may cause the spring to be damaged.
*
*
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of a
flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.
Flip up the sides of the Rubber Cap in the direction of
the arrow and remove one side of the support.
(Refer to Fig. 3-2.)
2.
GND on the CRT
Screwdriver
Alligator Clip
Support CRT
GND on the CRT
Rubber Cap
CRT Support
Fig. 3-1
Fig. 3-2
3. After one side is removed, pull in the opposite direction
to remove the other.
NOTE
DISASSEMBLY INSTRUCTIONS
INSTALLATION
1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 3-3.)
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
2.
3.
Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Fig. 3-4
4. Insert one end of the Anode Support into the anode
button, then the other as shown in Fig. 3-5.
CRT Support Fig. 3-5
5.
6. Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
Location of Anode Cap
Fig. 3-3
Take care not to damage the Rubber Cap.

KEY TO ABBREVIATIONS
A
B
C
D
E
F
G
H
A/C
ACC
AE
AFC
AFT
AFT DET
AGC
AMP
ANT
A.PB
APC
ASS'Y
AT
AUTO
A/V
BGP
BOT
BPF
BRAKE SOL
BUFF
B/W
C
CASE
CAP
CARR
CH
CLK
CLOCK (SY-SE)
COMB
CONV
CPM
CTL
CYL
CYL-M
CYL SENS
DATA (SY-CE)
dB
DC
DD Unit
DEMOD
DET
DEV
E
EF
EMPH
ENC
ENV
EOT
EQ
EXT
F
FBC
FE
FF
FG
FL SW
FM
FSC
FWD
GEN
GND
H.P.F
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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
I
K
L
M
N
O
P
R
S
H.SW
Hz
IC
IF
IND
INV
KIL
L
LED
LIMIT AMP
LM, LDM
LP
L.P.F
LUMI.
M
MAX
MINI
MIX
MM
MOD
MPX
MS SW
NC
NR
OSC
OPE
PB
PB CTL
PB-C
PB-Y
PCB
P. CON
PD
PG
P-P
R
REC
REC-C
REC-Y
REEL BRK
REEL S
REF
REG
REW
REV, RVS
RF
RMC
RY
S. CLK
S. COM
S. DATA
SEG
SEL
SENS
SER
SI
SIF
SO
SOL
SP
STB
SW
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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

KEY TO ABBREVIATIONS
S
T
U
V
X
Y
SYNC
SYNC SEP
TR
TRAC
TRICK PB
TP
UNREG
V
VCO
VIF
VP
V.PB
VR
V.REC
VSF
VSR
VSS
V-SYNC
VT
X'TAL
Y/C
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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

SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and
remocon key simultaneously.
The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
Set Key Remocon Key Operations
VOL. (-) MIN 0Releasing of V-CHIP PASSWORD.
Horizontal position adjustment of OSD.
NOTE: Also can be adjusted by using the Adjustment MENU.
Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
VOL. (-) MIN 3Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
VOL. (-) MIN 4 Adjust the PG SHIFTER manually.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
VOL. (-) MIN 2
Adjusting of the Tracking to the center position.
NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds
during PLAY.
VOL. (-) MIN 5
POWER ON total hours and PLAY/REC total hours are displayed on the screen.
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".
VOL. (-) MIN 6
VOL. (-) MIN 1 Initialization of the factory.
NOTE: Do not use this for the normal servicing.
VOL. (-) MIN 9 Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
VOL. (-) MIN 8 Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Method Operations
Adjusting of the Tracking to the center position.
Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL
ADJUSTMENT" (PG SHIFTER).
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.
The EOT/BOT/Reel sensor do not work at this moment.
Refer to the "PREPARATION FOR SERVICING"