Toshiba VTV2133 Service Manual
FILE NO. 140-200101
SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
VTV2133
SERVICING NOTICES ON CHECKING
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. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. 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.
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.
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay 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.
6. AVOID AN X-RAY1. KEEP THE NOTICES
Safety is secured against an X-ray by considering about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage peripheral 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 cathoderay tube.
PERFORM A SAFETY CHECK AFTER
7.
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.
(INSULATION CHECK PROCEDURE)
1.
Unplug the plug from the AC outlet.
2.
Remove the antenna terminal on TV and turn
on the TV.
3.
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].
4.
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
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.
GENERAL SPECIFICATIONS
G-1.Ou tline of the Product
21 inch(508.0
Color CRT 90 degree deflection
2 -Speed 1/2" Video Cassette Recorder
G-2.VCR Format
VHS Standar d
G-3.Video Recording System :Rotary,slant azimuth two head helical scan system
Luminance Compo nent :FM record in g
Chrominance Component :Low frequency converted direct recording
G-4.Broadcasting System
U.K. System I
G-5.Color System NTSC PAL SECAM or Monochrome signal
mmV):Measured diagonally
VHS Recorder/Player
VHS-C Player
NTSC PAL SECAM PAL-M PAL-N
VHS Hi-F i Audio System
G-6.NTSC Playback(PAL 60Hz)
G-7.MESECAM
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.Ta pe Speed
NTSC or P AL-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 11.12 mm/sec
G-10.Recording/Playback Time
NTSC or PAL-M(NTSC Playback Only)
at SP Mode Max. 210 min. (with T-210 cassette)
at LP Mode Max. 420 min. (with T-210 cassette)
at SLP 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 OVD-6S(Vertical)
G-12.Rewind/Fast Forward Time(Approx.)
FF: 2'15" / Rew 1'48" ( with T-120 cassette with E-180 cassette)
FF: 1'48" / Rew 1'48" ( with T-120 cassette with E-180 cassette)
Yes No
Yes No
G-13.Search Speed
SP 5 and 7 Times(PAL)
LP 7 and 13 Times(PAL)
SP 3 and 5 Times(NTSC)
G-14.Speed
SP 1/5-1/30 Times
LP 1/5-1/30 Times
SLP Times
G-15.Frame Advance
SP 1/10 Times
LP 1/10 Times
SLP Times
GENERAL SPECIFICATIONS
G-16.Antenna Input Impedance
VHF/UHF 75 ohm unbalanced
G-17.Tuner and Receiving channel
Tuner : Contactless Electric tuner
Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV Others
Receiving channel
21 ch~ 69 ch
Tuning System
Frequency syn. Voltage syn. Others
G-18.Preset Channel
80 channels
G-19.I ntermediate Frequency
Picture(FP) 39.5 MHz
Sound (FS) 33.5 MHz MHz MHz
FP-FS 6.0 MHz MHz MHz
G-20. Stereo/Dual TV Sound
Yes( NICAM GERMAN USA JAPAN) No
G-21.V ideo Signal
Input Level 1 Vp-p / 75
Output Level 1 Vp-p / 75 ohm
S/N Ratio 53 dB (Weighted)
Horizontal Resolution at SP Mode 240 Lines
1Tuner Syatem 2Tuner System
MHz MHz
ohm
G-22.A udio Signal
Input Level
Output Level
(0dB=0.775 V rms)
S/N Ratio at SP Mode 42 dB
Harmonic Distortion : 1.5 % (1KHz)
Frequency Response : at SP Mode 100 Hz ~ 10 KHz
Hi-Fi M odel’s Spec NONE
G-23.Heads
Video
FM Audio 2 Rotary Heads
Audio / Control 1 Stationary Head ( Mono Stereo(L,R) )
Erase 1 Full Track Erase
Line -3.8 dB / 50
RCA -3.8 dB / 50 Kohm
Line -3.8 dB / 1
RCA - dB / - Kohm
at LP Mode 100 Hz ~ 5 KHz
at SLP Mode Hz ~ KHz
Depth Multiplex Recording Rotary, Slant Azimuth Two Head
System Helical Scan System
Frequency Response : 20 Hz ~ 20
Dynamic Range : More than 75 dB
Wow And Flutter : Less than 0.01 % Wrms
Channel Separation : More than 60 dB
Harmonic Distortion : Less than 1 %
4 Rotary Heads
Kohm
Kohm
KHz(+-6dB)
G-24.Motor: 3 Motors
Tape/Cassette Loading
Cylinder ( Di re ct Dri ve)
Capstan (Direct Drive)
GENERAL SPECIFICATIONS
G-25.Power Source
230~240 V
EXT DC Jack V
G-26.Power Consumption: 70 W at AC 230 V 50 Hz
Stand by: 6 W at AC 230
Per Year: - kWh / Year
G-27.Dimensions(Approx.)
502 mm(W)
G-28.Weight(Approx.) Net : 26.5 Kg ( - lbs)
Gross: 28.5 Kg ( - lbs)
G-29.Cabinet Material
Cabinet Front:
Cabinet Rear:
Jack Panel:
AC 50Hz AC 60Hz
(at TV and VCR ON)
V 50 Hz
481.5 mm(D) 513 mm(H)
PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
G-30.Cassette Loading System:
G-31.Tape Counter: Linear Time Tape Counter
G-32.Protector:
G-33.Regulation
Safety
UL CSA SAA SI CE BEAB
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
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 Touc h Recording : Max Time SP Mode 5 LP Mode 10 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
Power Fuse Dew Sensor
Front Cassette Loading System
Top Loading System
ºC
G-37.Timer back up Time
More than 30 Minutes (at Power Off Mode)
G-38.Terminals
VHF/UHF Antenna Input Din Type F-Type France Type
Front Video Input<AV2,RCA ø8.3>
Front Audio Input<AV2,RCA ø8.3>x2
Rear Video Input<R CA ø8.3>
Rear Audio Input<RCA ø8.3> x2
Rear Video Output<RCA ø8 .3>
Rear Audio Output <RCA ø8 .3> x2
21 Pin (x 1 )<AV1> DC Jack 12V (Center +) AC Inlet
Ear Phone Ext Speaker Diversity
Head Phone(Mono & Stereo, ø3.5)
G-39.Indicator
Indicator
Key Light up Rec/OTR OTPB Play NONE
G-40.O n S creen Display
Menu
G-CODE(o r SHOWVIEW or PLUSCO DE)No. Entry(Opt ion)
Clock CH/AV
Tape Counter Tape Speed
Sleep Time Sound Mute
Control L ev el ( Vol, Bright, Cont, Color, Tint, Sharpness)
Play/Stop/ FF/ Rew /R ec/ OTR /T- Rec/ P ause ( Symbo l Mark)
Auto Tracking/Manual Tracking
Index Repeat Password
VPS PDC
S-Repeat/SR-R/SR-PLAY END Call
NICAM M 1/2, NICAM Off, Audio Output Hi-Fi
G-41.O S D Language
Eng Ger Fre Spa Ita Por Jan
OSD Language Setting
Eng Ger Fre Spa Ita Por Jan Not Applicable
GENERAL SPECIFICATIONS
Standby Rec/OTR T-Rec On Timer CS NONE
(Red) (Red
( ) ( )( )
ATS
Timer Rec Set
Ch Set-up
Auto Tuning Ch Mapping
Ch T uning CH Allocation
Guide Ch Set
TV Set-up
On/Off Timer Set Audio
Picture Tuning Mo de
NICAM Au to/Off
VCR Set-u p
Auto Repeat On/Off System Select
Scena Repeat
User Regist ra tion
System Set-up
Clock Set( Calendar 12H 24H)
Language
)(Red)( )( )
G-42.Speaker
Position
Size 3 inches
Imp. 8 ohm x 2 pcs
Output Max 1.5 + 1.5 W
G-43.EX T Speaker
Yes W Imp ohm NONE
G-44.Carton
Master Carton:
Content: ---- Set
Material: ---- / ---- Corrugated Carton
Dimensions: ---- mm(L) ---- mm(W) ---- mm(D)
Description of Origin Yes No
Gift Box
Material
Dimensions: 586 mm(W) 569
Design: As Per BUYER 's
Description of Origin: Yes No
Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Container Stuffing: 320 Sets / 40' container
GENERAL SPECIFICATIONS
Front Side Bottom
10% 1.5 + 1.5 W (Typical)
Need No Need
Double/Brown Corruga ted Carton ( with Photo Label)
Double/W hi te Co r ru gat ed Carton ( with Photo Label)
Double Full Color Carton W/Photo
mm(D) 590 mm(H)
Height
25cm 31cm 46cm 62cm 80cm
G-45.Accessories
Channel Film Dew Caution Sheet
Owner's Manual( W/Guarantee Card) [English]
AC Plug Adaptor
Remote Control Unit Quick Set -up Sheet
Rod Ant enn a ( One Pole Two Pole/ F-Type DIN Type France Type)
Loop Antenna( F-Type DIN Type France Type)
U/V Mixer Battery (UM- 4 x 2 )
DC Car Cord (Center+) AC Cord
Guarantee Ca rd AV Cord (Stereo-Mono)
Warning Sheet Regist ra tion Card
Circuit Diagram PTB Sheet
Anti-Theft Sheet 300 ohm t o 75 ohm Antenna P lug
Service Facility List Euro Warranty Information Sh eet
RF Cable
G-46.Other Features
Auto Head Cleaning Index Search
Auto Tracking
CH Auto Set-Up/Auto Clock ATS
VIDEO PLUS+(SHOWVIEW,G-CODE) PDC
HQ (VHS Standard High Quality) VPS
Auto Power On, Auto Play, Auto Rewind, Auto Eject,Auto Rep eat System
Forward / Reverse Picture Search Reverse Slow(for 4Head)
One Touch Playback Anti-Theft
Auto CH Memory T'Text( Fast Top Uni)
TV Auto S hutt off Function TV Monitor
END Call TV/Rec Monitor
AD Skip<CM Sk ip > (30 sec. x 6 times ) Choke Coil
G-47.Switch
Front
Standby 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 Fiel d
BV : +0.45G BV : +0.35G BV : +0.25G
BH : 0.18G BH : 0.3 0G 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: RC-DM
Power Source: D.C 3 V Battery UM - 4 x 2
Glow in Dark Remocon Yes No
Total 42 Key
GENERAL SPECIFICATIONS
0/AV Ch/Tr/Page Up Power
1 Ch/Tr/Page Down Eject
2 Volume Up
3 Volume Down Play/Up(/ Slow)
4 Mute F.FWD/Right
5 Menu Rew/Left
6 Enter/Hold Stop/Down
7 Cancel/Ch Skip/F.T.B. Pause( /Still)
8 ATR/Reveal REC/OTR
9 Text/Mix/TV Speed
Call Index/Time Text Audio Select
TV/Rec Monitor Cyan Timer Rec
Sleep Timer Red Counter Reset
Green Yellow Zero Return
Program( /Video Plus+ or ShowView)
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
Remove the 6 screws 1.
2.
Remove the 2 screws 2 which are used for holding the
Back Cabinet.
3.
Remove the AC cord from the AC cord hook 3.
4.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
1
1
1
2
2
1
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.
Remove the Anode Cap.
(Refer to REMOVAL OF ANODE CAP)
2.
Disconnect the following connectors:
(CP802 and CP805).
3.
Remove the CRT PCB in the direction of arrow.
3
Back Cabinet
Fig. 1-1
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
1.
Remove the 2 screws 1.
2.
Disconnect the following connectors:
(CP401, CP502, CP503, CP755 and CP4202).
3.
Unlock the support 2.
4.
Remove the TV/VCR Block in the direction of arrow.
Front Cabinet
1
TV/VCR Block
2
UP TO
RELEASE
1-4: MAIN PCB (Refer to Fig. 1-4)
1.
Remove the screw 1.
2.
Remove the Main PCB Holder.
3.
Remove the 2 screws 2.
4.
Remove the 3 screws 3.
5.
Disconnect the following connectors:
(CP810, CP820 and CD001).
6.
Remove the Main PCB in the direction of arrow.
2
2
Main PCB
Main PCB Holder
1
3
3
3
1
Fig. 1-3
Front Cabinet
CRT PCB
VCR Block
Fig. 1-4
Fig. 1-2
DISASSEMBLY INSTRUCTIONS
1-5: DECK SHIELD PLATE (Refer to Fig. 1-5)
1.
Remove the 2 screws 1.
2.
Remove the 4 screws 2.
3.
Remove the screw 3.
4.
Remove the Deck Shield Plate in the direction of arrow (A).
5.
Remove the screw 4.
6.
Remove the Shield Plate Bottom in the direction of arrow (B).
Deck Shield Plate
3
1
1
(A)
VCR Block
2
2
(B)
1
1
Syscon PCB
1
Deck Chassis
Fig. 1-6
1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7)
1.
Remove the screw 1.
2.
Remove the Syscon PCB in the direction of arrow (A).
3.
Remove the 2 screws 2.
4.
Unlock the 2 supports 3.
5.
Remove the Jack Plate in the direction of arrow (B).
Jack Plate
Shield Plate Bottom
4
2
1-6: DECK CHASSIS (Refer to Fig. 1-6)
1.
Remove the 3 screws 1.
2.
Disconnect the following connectors:
(CP1004, CP1005, CP1006, CP4001, CP4004 and
CP4005).
3.
Remove the Deck Chassis in the direction of arrow.
2
Fig. 1-5
Syscon PCB
2
3
(B)
1
(A)
Deck Holder
2
3
Fig. 1-7
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
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
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. (If
5.
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
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
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
DISASSEMBLY INSTRUCTIONS
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.
GND on the CRT
3. After one side is removed, pull in the opposite direction
to remove the other.
NOTE
Take care not to damage the Rubber Cap.
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.
Location of Anode Cap
Fig. 3-3
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of
2.
the arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
Support
CRT
Fig. 3-1
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. 3-2
Support
CRT
5.6.Confirm that the Support is securely connected.
Put on the Rubber Cap without moving any parts.
Fig. 3-5
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
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
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 for more than 2 seconds.
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 30 minutes before Power On or alternatively, discharge backup capacitor.
Set Key Remocon Key Operations
VOL. (-) MIN 1
VOL. (-) MIN 2
VOL. (-) MIN
VOL. (-) MIN 4
VOL. (-) MIN 5
VOL. (-) MIN 6
VOL. (-) MIN 7
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
Horizontal position adjustment of OSD.
NOTE: Also can be adjusted by using the Adjustment MENU.
Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
3
Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position.
NOTE: Also can be adjusted by pressing the ATR button for more tan 2 seconds
during PLAY.
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".
Releasing of PROTECTION PASSWORD.
VOL. (-) MIN 8
VOL. (-) MIN 9
Method Operations
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.
Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
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"
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
Notes
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
POWER ON total hours and PLAY/REC total hours can be checked on the screen.
Total hours are displayed in 16 system of notation.
NOTE: The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 30 minutes before Power On.
1.
Set the VOLUME to minimum.
2.
While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 2 seconds
3.
After the confirmation of using hours, turn off the power.
INIT 00 83
POWER ON
PLAY/REC
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
0010
0003
Initial setting content of MEMORY IC.
POWER ON total hours.
PLAY/REC total hours.
PREVENTIVE CHECKS AND SERVICE 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
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.
NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 30 minutes before Power On or alternatively, discharge backup capacitor.
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
5C 1E 07 81 EA 80 14 07 C4 81
05
1A 63 65 66 41 1E 3B 2A 17
10
77 63 64 65 64 0A 40 F5 76 A0
20 59 5F 05 F0 00 F0
30 15 28 A0 C4 20 08
5F 05 F0 05 F3 EF 90 6C 38 21
40 10 3A 60 47 03 06 15
BF 1B B5 C3 43 7D 8B 8B 0C
20 24 26 28 2A 2C 2E 30 32
50
60 5B 5E 61 64 67 6A
70 8B 8E 91 94 97 9A
80 A0 CD D2 D9 E1 F0 FF
Enter DATA SET mode by setting VOLUME to minimum.
1.
While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 2 seconds.
2.
ADDRESS and DATA should appear as FIG 1.
22
40 42 44 46 49 4C 4F 52 55 58
6D 70 73 76 79 7C 7F 82 85 88
9D
A5 AA AF B4 B9 BE C3 C8
Table 1
ADDRESS DATA
+A
+B +C +D +E +FINI
1A 31 04 6F 18 2300
1D 1B 3A 0F 4B 20
34 36 38 3A 3C 3E
INIT 00 83
POWER ON
PLAY/REC
3.
ADDRESS is now selected and should "blink". Using the PLAY or STOP 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 PLAY or STOP 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.
0010
0003
Fig. 1
SERVICING FIXTURES AND TOOLS
Alignment Tape
ST-N5
ST-NF
VTR cleaning kit VTR lubrication kit Grease JG002B
JG022 Master Plane JG024A Reel Disk Height
Back tension cassette gauge
70909103
Adjustment Jig
Torque cassette gauge
(KT-300NR)
70909199
JG153 X Value Adjustment
Screwdriver
Taper nut driver
70909228
JG002E
JG002F
JG154 Cable
Adapter
Dial Torque Gauge
(10~90gf•cm)
(60~600gf•cm)
JG162A Cable (8 Pins)
JG162G Cable (14 Pins)
JG162Y Cable (5 Pins)
Ref. No. Remarks
JG002B
JG002E
JG002F
JG153
JG022/JG024A
JG154
JG162A
JG162G Used to connect the Syscon PCB and Main PCBAPJG162G00
JG162Y Used to connect the Syscon PCB and CRT PCBAPJG162Y00
Tentelometer
Part No.
APJG002B00
APJG002E00
APJG002F00
APJG153000
APJG022000/APJG024A00
APJG154000
APJG162A00
VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
Brake Torque (T Reel Ass'y)
VSR Torque, Brake Torque (S Reel)
X Value Adjustment
Reel Disk Height Adjustment
Used to connect the test point of SERVICE and GROUND
Used to connect the Syscon PCB and Regulator PCB
PREPARA TION FOR SER VICING
How to use the Servicing Fixture
1.
Unplug the connector CP755 and CP4202, then remove the TV/VCR Block from the set.
2.
Unplug the connector CP810, CP820 and CP805, then remove the Main PCB from the VCR Block.
3.
Connect as shown in the below figure using the Service Fixture.
• Connect the Syscon PCB to the Regulator PCB with the cable JG162A.
• Connect the Syscon PCB to the Main PCB with the cable JG162G.
• Connect the Syscon PCB to the CRT PCB with the cable JG162Y.
4.
Remove the Operation PCB from the set, then connect it with the Syscon PCB.
If necessary, connect CD702 (Front A/V Jack Input Terminal)
5.
Short circuit between TP1001 and Ground with the cable JG154.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
The EOT, BOT and Reel Sensor do not work at this moment.
6.
At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
Front Cabinet
Stereo PCB
Syscon PCB
TP1001
CD850
CRT PCB
CP805
Main PCB
JG162Y
CD820
Regulator PCB
CP755
CP820
CP810
JG162G
JG162A
CD9001
To Ground
JG154
Operation PCB
CD702
CD757
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