Memorex MVT2135B D Service Manual

Page 1
SER VICE MANUAL
Design and specifications are subject to change without notice.
MVT2135B SERIES D
COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
MFR’S VERSION A
Page 2
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 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.
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.
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 youCr 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.
A1-1
Page 3
CONTENTS
SERVICING NOTICES ON CHECKING ..................................................................................
HOW TO ORDER PARTS .......................................................................................................
CONTENTS.................................................................................................................................
GENERAL SPECIFICATIONS....................................................................................................
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS............................................
2.REMOVAL OF DECK PARTS............................................................................................
3.REMOVAL OF ANODE CAP..............................................................................................
4. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC .................................................
KEY TO ABBREVIATIONS .....................................................................................................
SERVICE MODE LIST ............................................................................................................
PREVENTIVE CHECKS AND SERVICE INTERVALS ............................................................
WHEN REPLACING EEPROM (MEMORY) IC .....................................................................
SERVICING FIXTURES AND TOOLS .....................................................................................
PREPARATION FOR SERVICING .........................................................................................
MECHANICAL ADJUSTMENTS .............................................................................................
ELECTRICAL ADJUSTMENTS ...............................................................................................
BLOCK DIAGRAMS
TV............................................................................................................................................
Y/C/AUDIO/CCD/HEAD AMP/IN/OUT....................................................................................
MICON/OPERATION...............................................................................................................
PRINTED CIRCUIT BOARDS
OPERATION............................................................................................................................
SYSCON/CRT.........................................................................................................................
SCHEMATIC DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP.................................................................................................
MICON.....................................................................................................................................
IN/OUT.....................................................................................................................................
CHROMA/IF.............................................................................................................................
SOUND AMP...........................................................................................................................
POWER...................................................................................................................................
DEFLECTION..........................................................................................................................
CRT..........................................................................................................................................
OPERATION...........................................................................................................................
INTERCONNECTION DIAGRAM............................................................................................
WAVEFORMS.............................................................................................................................
MECHANICAL EXPLODED VIEWS...........................................................................................
CHASSIS EXPLODED VIEWS...................................................................................................
MECHANICAL REPLACEMENT PARTS LIST.........................................................................
CHASSIS REPLACEMENT PARTS LIST..................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ........................................................................
A1-1 A1-1 A2-1 A3-1~A3-4
B1-1 B2-1~B2-5 B3-1 B4-1, B4-2 C1-1, C1-2 C2-1 C3-1, C3-2 C4-1 C5-1 C5-1 D1-1~D1-4 D2-1~D2-5
E-1, E-2 E-3, E-4 E-5, E-6
F-1, F-2 F-3~F-6
G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 G-15, G-16 G-17, G-18 G-19, G-20 H-1, H-2 I-1, I-2 I-3, I-4 J1-1 J2-1 J3-1, J3-2
A2-1
Page 4
GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 13 inch / 335.4 mmV
System CRT Type Normal
Deflection 90 degree
Magnetic Field BV/BH +0.45G / +0.18G Color System NTSC Speaker 1Speaker
Position Front
Size 1.5 x 2.5 Inch
Impedance 8 ohm Sound Output MAX 1.5 W
10%(Typical) 1.0 W
G-2 VCR System VHS Player / Recorder
System Video System NTSC
Hi-Fi STEREO No NTSC PB ­Deck DECK OVD-7
Loading System Front
Motor 3 Heads Video Head 2Head
FM Audio Head No
Audio /Control Mono /Yes
Erase(Full Track Erase) Yes Tape Rec PAL ­Speed NTSC SP/SLP
Play PAL -
NTSC SP/LP/SLP
Fast Forward / Rewind Time (Approx.) FF:4'50"/REW:2'30"
with Cassette T-120 Forward/Reverse NTSC or PAL-M SP/LP/SLP=3x,5x/7x,9x/9x,15x Picture Search Frame Advance ­Slow Speed -
G-3 Tuning Broadcasting System US System M
System Tuner and System 1Tuner
Receive CH Destination US(w/CATV)
Tuning System F-Synth Input Impedance VHF/UHF 75 ohm
CH Coverage
2~69, 4A,A-5~A-1, A~I,
J~W,W+1~W+84 Intermediate Picture(FP) 45.75 MHz Frequency Sound(FS) 41.25 MHz
FP-FS 4.5 MHz
Preset CH
No
Stereo/Dual TV Sound
No
Tuner Sound Muting Yes
G-4 Signal Video Signal Input Level 1 V p-p/75 ohm
Output Level ­S/N Ratio (Weighted) 50dB Horizontal Resolution at SP Mode 220Lines
Audio Signal
Input Level
-8dBm/50Kohm
Output Level
-
S/N Ratio at SP (Weighted) 38dB
Harmonic Distortion at SP (1KHz) Typical
1.5 %
Frequency Response at SP 100Hz - 10kHz
at LP 100Hz - 6kHz
at SLP 100Hz - 4kHz
Hi-Fi Audio Signal Dynamic Range : More than - dB
Wow And Flutter : Less than - %Wrms Channel Separation : More than - dB Harmonic Distortion : Less than - %
G-5 Power Power Source AC 120V,60Hz
DC -
Power Consumption at AC 65 W at 120V 60Hz
at DC ­Stand by (at AC) 5 W at 120V 60Hz Per Year -
Protector Power Fuse Yes
Dew Sensor
No
G-6 Regulation Safety UL
Radiation FCC X-Radiation DHHS
G-7 Temperature Operation
+
5oC
~ +4
0oC
Storage
-2
0oC
~ +
60oC
G-8 Operating Humidity Less then 80% RH G-9 On Screen Menu Yes
A3-1
Page 5
GENERAL SPECIFICATIONS
Display Menu Type Charactor
Timer Rec Set Yes Channel Setup Yes
TV/CATV Yes Auto CH Memory Yes Add/ Delete Yes Guide CH Set
No
TV Setup Yes
V-chip Set Yes On/Off Timer Set Yes Picture Yes Audio
No
Sap On/Off
No Auto Repeat On/Off Yes System Setup Yes
Clock Set Yes Language Yes Auto Clock On/Off Yes Standard Time Yes Daylight Saving Time Yes
Commercial Advance
No
Marking On/Off
No
Blueback On/Off
No
Playback Auto/Manual
No
Unmarked Tape
No Movie Advance
No
Go To Movie
No
Go To Preview
No
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
No
Clock / Date Yes CH/AV Yes Tape Counter(Linear Counter) Yes Tape Speed Yes Sleep Time Yes Stereo/Audio Output
No
Bilingal
No
SAP
No
Control Volume Yes Level Bright / Contrast / Sharpness / Color Yes
Tint Yes Bass/Treble/Balance
No Manual Tracking Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark)
Yes Auto Tracking/Manual Tracking Yes Caption / Text Yes Index
No Muting Yes Hi-Fi
No Repeat Yes Zero Return
No DEW
No
G-10 OSD Language English French Spanish
OSD Language Setting English
G-11 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31
and Timer Timer Events 8 Program/ 1 Month Back-up One Touch Recording Max Time 5 Hours
OTPB Valid Time
No Sleep Timer Max Time 120
Min
Step 10
Min On/Off Timer Program(On Timer / Off Timer) 1
Program Auto Shut Off No Signal 15
Min
No Operation -
Timer Back-up (at Power Off Mode) 5
Sec
G-12 Remote Unit RC-CG
Control Glow in Dark Remocon Yes
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 41
Keys Keys Power Yes
1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes
A3-2
Page 6
GENERAL SPECIFICATIONS
9 Yes 0 Yes CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes Input Select Yes Play Yes F.Fwd Yes Rew Yes Pause/Still Yes Stop Yes Rec/OTR Yes Eject Yes Counter Reset Yes Speed Yes Timer Rec Yes TV Monitor Yes Quick View Yes Program Yes Slow
No
Auto Tracking Yes Set/Tracking+ Yes Set/Tracking - Yes Menu Yes Enter Yes Cancel Yes Call Yes TV/Caption/Text Yes Sleep Timer Yes Muting Yes Zero Return Yes CM Skip Yes Audio Select
No
G-13 Features Auto Head Cleaning Yes
Auto Tracking Yes HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes VIDEO PLUS+(SHOWVIEW,G-CODE)
No Auto Clock Yes Forward / Reverse Picture Search Yes Reverse Slow
No One Touch Playback
No Auto CH Memory Yes Closed Caption Yes TV Auto Shut off Function Yes End Call
No Index Search
No SQPB
No CATV Yes CM Skip(30sec x 6 Times) Yes Comb Filter
No TV Monitor Yes Program Extend
No Choke Coil
No Energy Star Yes Protect of FBT Leak Curcuit
No Dirty Head
No V-chip USA V-chip Yes
CANADA V-chip
No Zero Return Yes CM Advance
No Movie Advance
No
G-14 Accessories Owner's Manual Language English/Spanish
w/Guarantee Card
No Remote Control Unit Yes Battery
No
UM size x pcs -
Rod Antenna Yes
Poles 2 pole Terminal F type w/300 ohm to 75 ohm Antenna Adapter Yes
Loop Antenna
No
Terminal -
U/V Mixer
No 300 ohm to 75 ohm Antenna Adapter
No
A3-3
Page 7
GENERAL SPECIFICATIONS
Antenna Change Plug
No DC Car Cord (Center+)
No AC Plug Adapter
No AC Cord
No AV Cord (2Pin-1Pin)
No Guarantee Card Yes Registration Card
No ESP Card
No Warning Sheet
No Dew/AHC Caution Sheet
No Quick Set-up Sheet
No Circuit Diagram
No Service Facility List
No Important Safeguard
No Informatin Sheet
No
G-15 Interface Switch Power Yes
Play Yes Pause/Still
No
System Select
No
One Touch Playback
No
Channel Up Yes Channel Down Yes F.FWD/Cue Yes Eject/Stop Yes Main Power SW
No
Volume Up Yes Volume Down Yes Rew/Rev Yes Rec/OTR Yes Input Select
No Indicator Power
No
Rec/OTR Red T-Rec Red On Timer
No
CS
No Key Light up Rec/OTR
No
One Touch Playback
No
Play
No Terminals Front Video Input RCA x 1
Audio Input RCA x 1 Other Terminal Head Phone(Stereo & Mono, 3.5mm)
Rear Video Input
No
Audio Input
No
Video Output
No
Audio Output
No
Euro Scart
No
Diversity
No
Ext Speaker W Im
No
DC Jack 12V(Center +)
No
VHF/UHF Antenna Input
F Type
AC Inlet
No
G-16 Set Size Approx. W x D x H (mm) 362 x 370.5 x 382 G-17 Weight Net (Approx.) 11.0
(24.3 lbs)
Gross (Approx.) 12.5
(27.6 lbs)
G-18 Carton Master Carton
No
Content ­Material ­Dimensions W x D x H(mm) ­Description of Origin -
Gift Box Yes
Material Double/White Dimensions W x D x H(mm) 423 x 447 x 443 Design As per Buyer's Description of Origin Yes
Drop Test Natural Dropping At
1 Corner / 3 Edges / 6 Surfaces
Height (cm) 62
Container Stuffing(40' container) 700
Sets
G-19 Cabinet Material Cabinet Front PS 94V0/DECABROM
Cabinet Rear PS 94V0/DECABROM
A3-4
Page 8
Front Cabinet
CRT PCB
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
2.
3.
4.
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
Fig. 1-3
Remove the 4 screws 1. Remove the screw 2. Remove the AC cord from the AC cord hook 3. Remove the Back Cabinet in the direction of arrow.
Fig. 1-1
Front Cabinet
Back Cabinet
1
1
1
3
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.
2.
3.
Fig. 1-2
1.
2.
3.
4.
Remove the 2 screws 1. Disconnect the following connectors: (CP757, CP353, CP401 and CP502). Unlock the support 2. Remove the TV/VCR Block in the direction of arrow.
Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP) Disconnect the following connectors: (CP801 and CP851). Remove the CRT PCB in the direction of arrow.
1
1
2
UP TO RELEASE
TV/VCR Block
1-4:DECK CHASSIS AND SYSCON PCB
(Refer to Fig. 1-4)
1.
2.
3.
4.
5.
6.
7.
8.
Remove the screw 1. Remove the screw 2. Remove the screw 3. Remove the 3 screws 4. Disconnect the following connectors: (CP1004, CP1005, CP1006, CP4001, CP4002 and CP4003). Remove the Deck Chassis and Deck Shield Plate in the direction of arrow (A). Remove the screw 5. Remove the Syscon PCB in the direction of arrow (B).
B1-1
Front Cabinet
1
4
4
3
4
5
Deck Chassis
Deck Shield Plate
(A)
Syscon PCB
Deck Holder
Fig. 1-4
(B)
2
Page 9
DISASSEMBLY INSTRUCTIONS
B2-1
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports 1. Slide the 2 supports 2 and remove the Top Bracket.
1.
2.
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
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.
Fig. 2-1
2
2
Main Chassis
Main Chassis
Top Bracket
Top Bracket
Main Chassis
Main Chassis
Cassette Side L
Cassette Side R
Locker R
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring. Unlock the 4 supports 1 and then remove the Cassette Side L/R. Unlock the support 2 and then remove the Locker R.
1.
2.
3.
Link Ass'y
NOTE
1.2.In case of the Locker R installation, check if the two positions of Fig.2-3-B are correctly locked. When you install the Cassette Side R, be sure to move the Locker R after installing.
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position. Unlock the support 1. Remove the (A) side of the Link Unit first, then remove the (B) side.
1.
2.
3.
Fig. 2-4
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Remove the Link Lever. Remove the Flap Lever.
1.
2.
Fig. 2-5
Fig. 2-3-A
Cassette Side L
Cassette Side R
1
1
1
Locker R
1
Cassette Holder
Locker Spring
2
Fig. 2-3-B
Check if these positions are locked.
(A)
Link Unit
Main Chassis
1
Link Unit
(B)
Main Chassis
Link Lever
Flap Lever
Cassette Side R
Locker R
1
1
NOTE
1. After the installation of the Top Bracket, bend the support 1 so that the Top Bracket is fixed.
Page 10
DISASSEMBLY INSTRUCTIONS
B2-2
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the Tension Holder hook is set to the position of Fig. 2-7-A to move the Tension Arm Ass'y. Remove the Tension Spring. Unlock the 2 supports 1 and remove the Tension Band. Unlock the support 2 and remove the Tension Arm Ass'y. Unlock the support 3 and remove the Tension Connect. Float the hook 4 and turn it clockwise then remove the Tension Holder.
1.
2.
3.
4.
5.
6.
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 1. Remove the Loading Motor. Remove the Worm.
1.
2.
3.
Fig. 2-6-A
• Screw Torque: 3 ± 0.5kgf•cm
Loading Motor
1
Main Chassis
Worm
NOTE
1. In case of the Worm installation, check if the value of the Fig. 2-6-B is correct.
Fig. 2-6-B
19.2 ± 0.1mm
Safety surface for pressing of the insert.
Fig. 2-7-D
Tension Band
NOTE
1.
2.
3.
In case of the Tension Band installation, note the direction of the installation. (Refer to Fig. 2-7-C) In case of the Tension Band installation, install correctly as Fig. 2-7-D. In case of the Tension Connect installation, install as the circled section of Fig. 2-7-E.
Tension Band
Tension Connect
Tension Connect
[OK]
[NG]
Fig. 2-7-E
Tension Connect
Main Chassis
Fig. 2-7-C
Tension Band
Tension Connect
Fig. 2-7-A
Tension Arm Ass'y
Fig. 2-7-B
Tension Spring
1
2
4
Tension Band
Tension Arm Ass'y
3
1
Tension Holder
Tension Connect
Page 11
DISASSEMBLY INSTRUCTIONS
B2-3
Fig. 2-9-B
Big Hole (S Reel)
Small Hole (T Reel)
Fig. 2-9-C
Idler Arm Ass'y
[OK]
[NG]
Clutch Gear
Idler Arm Ass'y
Clutch Gear
Fig. 2-8-B
T Brake Band
NOTE
1. In case of the T Brake Band installation, install correctly as Fig. 2-8-B.
T Brake Arm
[OK]
[NG]
T Brake Band
T Brake Arm
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel. Remove the 2 Polyslider Washers 1. Remove the Idler Arm Ass'y and Idler Gear.
1.
2.
3.
NOTE
Take care not to damage the gears of the S Reel and T Reel. 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. (Use gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains on it. When you install the reel, clean the shaft and grease it (MG-33). (If you do not grease, 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.
Fig. 2-9-A
S Reel
1
(A) T Reel
(A)
1
Idler Arm Ass'y
Idler Gear
NOTE
1.2.In case of the S Reel and T Reel installation, check if the correct parts are installed. (Refer to Fig. 2-9-B) In case of the Idler Arm Ass'y installation, install correctly as Fig. 2-9-C.
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring. Turn the T Brake Arm clockwise and bend the hook section to remove it. Unlock the 2 supports 1 and remove the T Brake Band.
1.
2.
3.
T Brake Band
Hook section
T Brake Spring
T Brake Arm
1
1
Fig. 2-8-A
Page 12
DISASSEMBLY INSTRUCTIONS
B2-4
A/C Head
2
2
A/C Head Spring
1
(3)(1)
2
(2)
A/C Head Base
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 1. Remove the FE Head.
1.
2.
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-11-A
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
Fig. 2-12
1
2-11: A/C HEAD (Refer to Fig. 2-11-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. 2-11-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.
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass'y.
1.
2.
Fig. 2-10-A
1
Cassette Opener
P5 Arm Ass'y
Pinch Roller Block
Main Chassis
NOTE
Do not touch the Pinch Roller. (Use gloves.) In case of the Pinch Roller Block and the Pinch Roller Cam installation, install correctly as Fig. 2-10-B.
1.
2.
Fig. 2-10-B
Can be seen the hole of the Main Cam.
Can be seen the hole of the Pinch Roller Cam.
P5 Arm Ass'y
Pinch Roller Block
Page 13
DISASSEMBLY INSTRUCTIONS
B2-5
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam installation, install them as the circled section of Fig. 2­15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Fig. 2-15-B
2-15:
Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Cam and Joint Gear.
1.
2.
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A)
1
Main Cam
Pinch Roller Cam
Joint Gear
2
1.
Pinch Roller Cam
Main Cam
Marker
2-16: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring 1 and remove the Main Loading Gear. Remove the Main Rod, Tension Lever, Loading Arm S Ass'y and Loading Arm T Ass'y.
1
Main Rod
Main Loading Gear
Tension Lever
Loading Arm T Ass'y
Loading Arm S Ass'y
Fig. 2-16-A
2-13:AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support 1 and remove the AHC Ass'y. Disconnect the following connector: (CD2001) Remove the 3 screws 2. Remove the Cylinder Unit Ass'y.
1.
2.
3.
4.
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
Fig. 2-13
1.
1
AHC Ass'y
Cylinder Unit Ass'y
2
2
2
• Screw Torque: 3 ± 0.5kgf•cm
(1)
(3)
(2)
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14)
Remove the Capstan Belt. Remove the 3 screws 1. Remove the Capstan DD Unit.
1.
2.
3.
Fig. 2-14
• Screw Torque: 4 ± 0.5kgf•cm
Capstan DD Unit
Capstan Belt
1
1
1
Page 14
DISASSEMBLY INSTRUCTIONS
B2-6
2-18:
Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide Post. Remove the Inclined Base S Unit and Inclined Base T Unit.
1.
2.
3.
Fig. 2-18-A
CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A)
P4 Cap
Cassette Guide Post
1
Inclined Base T Unit
Inclined Base S Unit
NOTE
Do not touch the roller of Guide Roller. In case of the P4 Cap installation, install it with parallel for "A" and "B" of Fig. 2-18-B. In case of the Cassette Guide Post installation, install correctly as the circled section of Fig. 2-18-C.
1.
2.
3.
"A"
[OK]
[NG]
"B"
P4 Cap
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
Cassette Guide Post
Cassette Guide Post
2-17:
Remove the Polyslider Washer 1. Remove the Clutch Ass'y and Ring Spring. Remove the Clutch Lever. Remove the Coupling Gear, Coupling Spring and Clutch Gear.
1.
2.
3.
4.
Fig. 2-17-A
NOTE
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. 2-16-B)
Fig. 2-16-B
Loading Arm T Ass'y
Main Loading Gear
Marker
Marker
Loading Arm S Ass'y
1
Clutch Ass'y
Coupling Gear
Clutch Lever
Ring Spring
Coupling Spring
Clutch Gear
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/ CLUTCH GEAR (Refer to Fig. 2-17-A)
NOTE
In case of the Clutch Ass'y installation, install it with inserting the spring of the Clutch Ass'y into the dent of the Coupling Gear. (Refer to Fig. 2-17-B)
1.
Clutch Ass'y
Fig. 2-17-B
Coupling Gear
Page 15
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
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.)
Location of Anode Cap
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.)
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
CRT
Support
DISASSEMBLY INSTRUCTIONS
Fig. 3-3
Fig. 3-4
Fig. 3-5
B3-1
Page 16
B4-1
Masking Tape (Cotton Tape)
DISASSEMBLY INSTRUCTIONS
4.
REMOVAL
IC
Put the Masking Tape (cotton tape) around the Flat Package IC to protect other parts from any damage.
(Refer to Fig. 4-1.)
1.
Fig. 4-1
NOTE
REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.
NOTE
Masking is carried out on all the parts located within 10 mm distance from IC leads.
Blower type IC desoldering machine
IC
Heat the IC leads using a blower type IC desoldering machine. (Refer to Fig. 4-2.)
2.
Fig. 4-2
NOTE
Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.
When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.)
3.
Blower type IC desoldering machine
IC
Fig. 4-3
Tweezers
Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 4-4.)
5.
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 4-4
IC pattern
Page 17
B4-2
DISASSEMBLY INSTRUCTIONS
Supply soldering from upper position to lower position
IC
Supply the solder from the upper position of IC leads sliding to the lower position of the IC leads.
(Refer to Fig. 4-6.)
2.
Fig. 4-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided Shield Wire. (Refer to Fig. 4-7.)
3.
Fig. 4-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin­tip Soldering Iron. (Refer to Fig. 4-8.)
4.
Fig. 4-8
Thin-tip Soldering Iron
NOTE
When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.
Finally, confirm the soldering status on four sides of the IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.
5.
Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 4-5.)
1.
Fig. 4-5
Solder temporarily
Page 18
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
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
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
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
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
Page 19
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
: : : : : : : : : : : : : : : : : : : : :
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
Page 20
C2-1
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
0
Releasing 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
3
Adjust 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 HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (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"
Page 21
C3-1
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.
Parts Name
Audio Control Head
Notes
Time
500
hours
1,000 hours
1,500 hours
2,000 hours
3,000 hours
: Clean : Replace
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 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 HOURS USED
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 5 seconds before Power On.
1.
2.
3.
Set the VOLUME to minimum. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. After the confirmation of using hours, turn off the power.
INIT 00 83
0010 0003
POWER ON PLAY/REC
Initial setting content of MEMORY IC.
POWER ON total hours. PLAY/REC total hours.
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
Page 22
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
Clean the Audio Control Head with the cotton stick soaked by alcohol. 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.
Cylinder Head
Audio Control Head
C3-2
PREVENTIVE CHECKS AND SERVICE INTERVALS
Page 23
WHEN REPLACING EEPROM (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 5 seconds before Power On.
C4-1
88 0A 62 63 43 14 34 09 51 38
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+A
+B +C +D +E +FINI
B2 92 93 00 00 00 15 08 00 06 29 01 17 10 60 32 3A DA D7 28 29 2A 2C 2E 30 32 34 36 38 43 45 46 47 48 49 4A 4B 4C
30 66 00 40 00 1000
10
9A
A9 0F 94 3E 06 04 20 10 15 20 25 26 27 30 3A 3C 3E 40 41 42 40 44 4D 4E 4F 50 51 52
53 55 56 57 58 59 5A 5B 5C 63 64 66 69 6D 74 79 7C 7E 7F
50
54
5D 5E 5F 60 61 62
60 --- --- --- --- --- ---
3.
4.
5.
6.
7.
8. The unit will now have the correct DATA for the new MEMORY IC.
Table 1
1.
2.
Fig. 1
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. Press ENTER to select DATA. When DATA is selected, it will "blink". Again, step through the DATA using PLAY or STOP until required DATA value has been selected. Pressing ENTER will take you back to ADDRESS for further selection if necessary. Repeat steps 3 to 6 until all data has been checked. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
Enter DATA SET mode by setting VOLUME to minimum. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. ADDRESS and DATA should appear as FIG 1.
INIT 00 83
0010 0003
POWER ON PLAY/REC
ADDRESS DATA
Page 24
(For 2 heads model)
VHS Alignment Tape JG001 JG001A JG001Q JG001T
SERVICING FIXTURES AND TOOLS
JG100A Torque Tape
(VHT-063)
JG024AJG022 Master PlaneJG153 X Value Adjustment
Screwdriver
JG005 Post Adjustment
Screwdriver Part No. SV-TG0-030-000 (small)
JG002B JG002E
JG002F
Adapter Dial Torque Gauge (10~90gf•cm) (60~600gf•cm)
(For 4 heads model)
VHS Alignment Tape JG001B JG001I JG001P JG001S
(VN S-LI6 ) (VN S-CO1 ) (VN S-LI6 H) (VN S-X6 )
2
3
2
3
2
3
2
3
(VN S-LI6 ) (VN S-CO1 ) (VN S-LI6 H) (VN S-X6 )
1
3
1
3
1
3
1
3
Reel Disk Height Adjustment Jig
C5-1
JG154 Cable
Tentelometer
Remarks
Part No.
APJG001000
Ref. No.
JG001Q
JG001T JG001B
JG001I JG001P JG001S JG002B JG002E JG002F
JG005 JG153
JG001
JG001A
APJG022000
APJG001A00
APJG001Q00
JG100A
JG154
JG024A
JG022
VHS Alignment Tape (For 2 heads model)
APJG001T00 APJG001B00
APJG001I00 APJG001P00 APJG001S00 APJG002B00 APJG002E00 APJG002F00 APJG005000 APJG153000
APJG024A00 APJG100A00 APJG154000
Parts Name
VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) Adapter Dial Torque Gauge (10~90gf•cm) Dial Torque Gauge (60~600gf•cm) Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Adjustment Jig Torque Tape (VHT-063) Cable
Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment VSR Torque, Brake Torque (S Reel/T Reel Ass'y) Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) Guide Roller Adjustment X Value Adjustment Reel Disk Height Adjustment Reel Disk Height Adjustment Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND
PREPARATION FOR SERVICING
How to use the Servicing Fixture
1.
2.
3.
4.
Unplug the connector CP757 and CP353, then remove the TV/VCR Block from the set. Remove the Operation PCB from the set, then connect it with the Syscon PCB. If necessary, connect CP353. (Front A/V Jack Input Terminal) 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. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
Page 25
D1-1
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 DISK HEIGHT
1-1:
1.
2.
3.
4.
Turn on the power and set to the STOP mode. 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. While turning the reel and confirm the following points. Check if the surface "A" of reel disk is lower than the surface "B" of reel disk height adjustment jig (JG024A) and is higher than the surface "C". If it is not passed, place the height adjustment washers and adjust to 10(+2, -0)mm. Adjust the other reel in the same way.
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 mode. Set the unit to the PLAY mode. Install the tentelometer as shown in Fig. 1-3. Confirm that the meter indicates 20 ± 2gf in the beginning of playback.
1.
2.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
2.
3.
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. Confirm that the right meter of the torque tape indicates 50~90gf•cm during playback in SP mode. Confirm that the left meter of the torque tape indicates 25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
Guide Roller
P1 Post
Fig. 1-3
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
2.
3.
Set to the PLAY mode. Adjust the adjusting parts for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis. While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Fig. 1-2-A
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Reel Disk Height Adjustment Jig (JG024A)
Fig. 1-1-A
Reel Disk
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
(B)
(C)
Master Plane (JG022)
Fig. 1-1-B
(A)
10(+0.2, -0)mm
Master Plane (JG022)
Reel Disk Height Adjustment Jig (JG024A)
Adjusting parts for the Tension Arm position
Bend
Tension Band
The Tension Arm top will move to the outside direction of the Main Chassis.
The Tension Arm top will move to the inside direction of the Main Chassis.
Page 26
S Reel/Tension Band/Tension Connect/Tension Arm Ass'y T Reel/T Brake Band//T Brake Spring/T Brake Arm
D1-2
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
1.
2.
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
S Reel side: T Reel side:
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). (Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001 (Envelope) and CH-2 to TP1002 (SW Pulse). Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Trigger with SW Pulse and observe the envelope. (Refer
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting 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 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.
(Refer to the ELECTRICAL ADJUSTMENTS)
1.
2.
3.
4.
5.
6.
7.
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
CH-2 SW Pulse (TP1002)
CH-1 Track
CH-2 Track
CH-1 Envelope (TP4001)
Fig. 2-1-A
Entrance Exit
Max
A : B 3 : 2
A
Max
B
Fig. 2-1-B
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-B)
Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the S Reel. Install the Torque Gauge (JG002F) and Adapter
(JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
1.
2.
3.
4. (T Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the T Reel. Install the Torque Gauge (JG002E) and Adapter
(JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
1.
2.
3.
4.
Torque Gauge/Adapter (JG002F/JG002B)
T Reel
S Reel
Torque Gauge/Adapter (JG002E/JG002B)
Fig. 1-4-A
The position at FF mode.
The position at STOP mode.
Cassette Opener
Pinch Roller Block
Capstan DD Unit
Cassette Holder Ass'y
Stop at this position.
Fig. 1-4-B
Page 27
D1-3
MECHANICAL ADJUSTMENTS
2-3:2-2:
When the Tape Running Mechanism does not work well, adjust the following items.
CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD
1.
2.
3.
4. When the height is not correct, turn the screw 3 to
adjust the height. Then, adjust the 1~3 again.
Playback the VHS Alignment Tape (JG001 or JG001B) .
(Refer to SERVICING FIXTURE AND TOOLS)
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)
b)
Turn the screw 2 to set the audio level to maximum. 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 reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared. When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a).
P4 Post
Fig. 2-2-A
Audio/Control Head
1
3
2
Fig. 2-2-B
Audio/Control Head
Fig. 2-2-C
TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1) Confirm and adjust the Audio/Control Head.
(Refer to item 2-2) Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to HOT side of Audio Out Jack. Playback the VHS Alignment Tape (JG001S or JG001T). (Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Set the X Value adjustment driver (JG153) to the 4 of 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. 2-3.
1.
2.
3.
4.
5.
6.
7.
8.
4
Audio/Control Head
Reflected picture of Stamp Mark
Stamp Mark
Tape
0.25±0.05mm
Envelope
CH-3 Audio
(1)
(2)
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP1002 and CH-2 to the Hi-Fi Audio Out Jack. Playback the VHS Alignment Tape (JG001P or JG001Q).
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the Tracking Up button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the Tracking Down button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). If the difference are more than 3 steps, set the X Value adjustment driver (JG153) to 4 of Fig. 2-2-B. Change the X Value and adjust it so that the value becomes within 2 steps.
1.
2.
3.
4.
5.
6.
7.
Page 28
D1-4
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
5
6
7
8910
1
2
3
4
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
7.
8.
9.
10.
P4 Post T Brake Spring T Reel S Reel Adjusting parts for the Tension Arm position
Page 29
D2-1
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL
ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.
CAUTION
Use an isolation transformer when performing any service on this chassis. Before removing the anode cap, discharge electricity because it contains high voltage. When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors. When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
(VCR SECTION)
2-1: PG SHIFTER
1.
2.
3.
4.
Connect CH-1 on the oscilloscope to TP1002 and CH-2 to pin 4 of CP1003. Playback the alignment tape. (JG001A) Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. If the indicator REC disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.
6.
7.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. When the REC indicator is blinking, press both VOL. DOWN button on the set and the channel button (4) on the remote control simultaneously and adjust the Tracking +/- button until the arising to the down of Head Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
Press the Tracking Auto button.
6.5H
6.5H
Fig. 2-1-B
CH-2
CH-1
CH-1
CH-2
Fig. 2-1-A
2. BASIC ADJUSTMENTS
2-2: VCO FREERUN
1.
2.
3.
4.
5.
6.
7.
8.
9.
Place the set with Aging Test for more than 10 minutes. Receive the VHF HIGH. Disconnect the Antenna while receiving the VHF HIGH and set to the Noise screen. Once turn off the Power and turn on the Power again. Approxi. 3 seconds later, input the Antenna again. Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. After the 2.5V adjustment, countdown the VIF VCO step No. by 1 step with the VOL. DOWN button.
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the clock to the non-setting state. Then, set the volume level to minimum. Press the VOL. DOWN button on the set and the Channel button (9) on the remote control simultaneously to appear the adjustment mode on the screen as shown in Fig. 1-1.
1.
2.
Fig. 1-1
Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end the adjustments.
3.
4.
FUNCTION
OSD H CUT OFF RF AGC DELAY VIF VCO H VCO H PHASE V SIZE V SHIFT R DRIVE B DRIVE R CUT OFF G CUT OFF B CUT OFF
NO.
00 01 02 03 04 05 06 07 08 09 10 11 12
Fig. 1-2
FUNCTION
BRIGHTNESS CONTRAST COLOR TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST
NO.
13 14 15 16 17 18 19 20 21 22 23 24
TV
00 OSD 15
Page 30
D2-2
ELECTRICAL ADJUSTMENTS
2-3: RF AGC DELAY
1.
2.
3.
4.
Receive the VHF HIGH (63dB). Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC DELAY". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.9V ± 0.15V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
2.
3.
4.
Connect the digital voltmeter to the TP601. Set condition is AV MODE without signal. Using the remote control, set the brightness and contrast to normal position. Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
2-8: HORIZONTAL PHASE
1.
2.
3.
4.
Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE". Press the VOL. UP/DOWN button on the remote control until the right and left screen size of the vertical line becomes the same.
1.
2.
3.
4.
5.
6.
Adjust the unit to the following settings. R CUT OFF=128, G CUT OFF=128, B CUT OFF=128, BRIGHTNESS=128, CONTRAST=100 Place the set with Aging Test for more than 15 minutes. Set condition is AV MODE without signal. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". Adjust the Screen Volume until a dim raster is obtained.
2-5: CUT OFF
2-6: WHITE BALANCE NOTE:Adjust after performing CUT OFF adjustment.
1.
2.
3.
4.
5.
6.
7.
8.
Place the set with Aging Test for more than 15 minutes. Receive the color bar pattern. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R CUT OFF". Using the VOL. UP/DOWN button on the remote control, adjust the R CUT OFF. Press the CH. UP/DOWN button on the remote control to select the "R DRIVE", "B DRIVE", "G CUT OFF" or "B CUT OFF". Using the VOL. UP/DOWN button on the remote control, adjust the R DRIVE, B DRIVE, G CUT OFF or B CUT OFF. Perform the above adjustments 6 and 7 until the white color is looked like a white.
2-7: FOCUS
1.
2.
3.
4.
Receive the monoscope pattern. Using the remote control, set the brightness and contrast to normal position. Turn the Focus Volume fully counterclockwise once. Adjust the Focus Volume until picture is distinct.
2-9: VERTICAL SHIFT
1.
2.
3.
4.
Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT". Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask.
2-10: VERTICAL SIZE
1.
2.
3.
4.
5.
Receive the cross hatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE". Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square. Receive a broadcast and check if the picture is normal.
2-11: SUB BRIGHTNESS
1.
2.
3.
4.
5.
6.
Receive the monoscope pattern. (RF Input) Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRIGHTNESS". Press the VOL. UP/DOWN button on the remote control until the white 10% is starting to be visible Receive the monoscope pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
2-11: SUB CONTRAST MANUAL
1.
2.
3.
4.
5.
Receive the color bar pattern. (RF Input) Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (14) on the remote control to select "CONTRAST". Press the VOL. UP/DOWN button on the remote control until the contrast STEP No. becomes "100". Receive the color bar pattern. (Audio Video Input) Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
Page 31
D2-3
ELECTRICAL ADJUSTMENTS
2-13: SUB TINT
1.
2.
3.
4.
5.
6.
7.
2-15: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
(Refer to Fig. 2-4)
B
A
TV
00 OSD 15
Fig. 2-4
Receive the color bar pattern. (RF Input) Connect the oscilloscope to TP801. Using the remote control, set the brightness, contrast, color and tint to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line.
(Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
Fig. 2-2
2-14: SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
Receive the color bar pattern. (RF Input) Connect the oscilloscope to TP803. Using the remote control, set the brightness, contrast, color and tint to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (15) on the remote control to select "COLOR". Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level. (Refer to Fig. 2-3) Receive the color bar pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~6.
100%
White 0%
Red Level
White 100%
Fig. 2-3
"A"
2-16: SUB SHARPNESS
1.
2.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "SHARPNESS". Check if the step No. of SHARPNESS is "40". Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 1, 2.
2-17: H VCO
Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H VCO". Check if the step No. of H VCO is "4".
1.
2.
Page 32
D2-4
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE
SYSCON PCB
TU601
FOCUS VOLUME SCREEN VOLUME
FB401
CP351
VR502
TP1001
CP1003
TP4001
TP1002
J801
CRT PCB
TP801
TP803
TP601
Page 33
D2-5
ELECTRICAL ADJUSTMENTS
4.PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
1.
2.
3.
Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. Place the CRT surface facing east or west to reduce the terrestrial magnetism. Turn ON the unit and demagnetize with a Degauss Coil.
4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
2.
3.
4.
5.
6.
7.
8.
Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 4-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. Receive the green raster pattern from the color bar generator. Slide the deflection yoke until it touches the funnel side of the CRT. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. Switch the color bar generator from the green raster pattern to the crosshatch pattern. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7.
4-2: PURITY NOTE
Adjust after performing adjustments in section 4-1.
1.
2.
3.
4.
5.
Receive the green raster pattern from color bar generator. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. Confirm red and blue colors. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS
Fig. 4-1
4-3: STATIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-2.
1.
2.
3.
Receive the crosshatch pattern from the color bar generator. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
4-4: DYNAMIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-3.
1.2.Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left.
(Refer to Fig. 4-2-a)
Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke.
(Refer to Fig. 4-2-b)
R G B
R G B
R G B
R G B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Fig. 4-2-a
WEDGE
WEDGE
WEDGE
WEDGE POSITION
Fig. 4-2-b
Page 34
SW.
THERMAL
Q608
CUT OFF SW P. CON+8V
AC IN
TV BLOCK DIAGRAM
MICON/ OPERATION/ DECK
Q804
BLUE AMP
Q805
GREEN
Q806
RED AMP
Q405
H-DRIVE
Q406
H. OUTPUT
DY
7
V. OUTPUT IC IC401 AN5522
3
5
VCC
AMP
2
7
F S
9
2
HV
10
7 9
F 8 3
J801
V801 CRT
1
Q501 TLP621(GR)
FEED BACK
D501
RECTIFIER
SW.
Q507
T501
8
5
VR502
3
16
11
AT+12V
SP351 SPEAKER
SOUND AMP IC IC351 AN7511
6
8
2
VCR_POWER-H
5
MICON/ OPERATION/ DECK
4
TV_A_MUTE
1
P. CON+5V
HD
OSD_G AFT_M
OSD_B OSD_R
OSD_BLK
VD
6
COL +B
E180 ABL AFC HEA
CHROMA IC IC601 M61206FP
57
62
1
64
5
16
15
14
10
35
31
60
63 48 56
55 41
42
33
39 46
13
32
29
17
7
6
TU601
11
5
4
1
SAW FILTER CF601
1
54
Y/C_AUDIO
TU_AUDIO TU_VIDEO
SDA
SCL
Y/C/AUDIO/
CCD/
HEAD AMP/
IN/OUT
MICON/
OPERATION/
DECK
AT+5V_BACK UP
X602
3.579545MHz
53
Q602, Q603
REG.
Q606
Q604, Q605
F501
14
13
UNREG+8V
1
2
TH501
F502
POWER_FAIL
50
1
E180V
27
TV_POWER-H
E-1
E-2
HEAD
SP–
SP+
CD352
J351
FB401
L503
DEGAUSS COIL
NC
REG.
REG.
52
12
AT+12V
AT+5V
AT+12V
2 1
MICON/
OPERATION/
DECK
PUMP UP
21
TV_POWER-H
Q609
POWER ON
Q611
POWER_FAIL
SW.
Q403
Q404
X-RAY_TEST
SW.
X-RAY
3
Q601
BUFFER
+B ADJ
POWER FAIL
JACK
AMP
SW.
PROTECTION
FEED BACK
Q511
SWITCHING
Q510
SWITCHING
5V REG
IC 501 KIA7805P1
Q407
H-CONTROL
SW
H_CTL
MICON/ OPERATION/ DECK
X' TAL
H. PLUSE OUT
FBP IN
H OUT
ACL/ABCL
AFT OUT
VIF IN
VIF IN
RF AGC OUT
AUDIO OUT
SDA
SCL
FAST BLK
R OUT G OUT B OUT
V OUT
V PLUSE OUT
EXT AUDIO IN
VIF VIDEO OUT
VREG VCC
5.7V REG OUT (FOR CPU)
MCU RESET
8.7V REG OUT
5V REG
POWER ON CONT
FM DIRECT OUT
VIF APC FILTER
IF AGC FILTER
IF AGC
SW REG CONT
V RAMP FEED BACK
CHROMA APC FILTER
Page 35
Y/C/AUDIO/CCD/HEAD AMP/IN/OUT BLOCK DIAGRAM
E-3
E-4
X4001
3.579545MHz
30
2
80
76
32
10
67
62
65
7
9
6
8
36 39
59
4
5
3
SYNC SEP
CP4001
4
3
2
SP-CH1 (R)
SP_COM
SP-CH2 (L)
CYL
FE HEAD (HOT) FE HEAD (GND)
2
1
CP4003
FE HEAD
CP4002
6 5 4
AUDIO PB AUDIO REC CTL+
HEAD
AUDIO
CONTROL
3 2
1
AE HEAD(-) AE HEAD(+)
CTL-
CTL+ CTL-
MICON/ OPERATION/ DECK
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71200M-MPB
TV
38
Q4010
BUFFER
50 49
41
43
37
57 58
25
24 26
66
72
74
73
H
P
T4001
H. SW VCR_A_MUTE ENV. DET
DUMMY_V. SYNC SD_VIDEO SD_SYNC
TU_VIDEO
FRONT_AUDIO
Y/C_AUDIO
623
1
5
Q4005
BIAS CTL
11
4
P. CON + 5V
1
C-ROT
RF-SW IN
AUDIO
MUTE HA SW
ENV DET
Q4006
BIAS OSC
Q4003
SW
Q4001, Q4002
AUDIO PB SW
Q4012
BUFFER
COIL, BIAS OSC
R
HA
GND
P P
R
P
L
H
L
C-LPF
REC AMP
AUTO BIAS
EQ
AMP
PB.EE
MUTE
LINE AMP
LPF
ALC
1 2 3
R P
12
3
28
QV-QH
60B
SYNC SEP
VIDEO AGC
VX01
PLL
REC APC
REC APC
VSS
R
P
Main CONV
3.58M BPF2
B-UP AMP
AGC
ACC DET
3.58M BPF1
NYR/COMB
UOT
CCD
CLAMP AUTO-BIAS
VCA
V.REC_ST-H
NC
NC
TU_AUDIO
NC
MICON/ OPERATION/ DECK
55
53 54
Y/C_CLK Y/C_DATA Y/C_CS
MICON/ OPERATION/ DECK
SERAIL DECODER
Q4007
SYNC IN
Q4009
BUFFER
FRONT_VIDEO
Q4011
BUFFER
P. CON+5V
VD
TV
Page 36
E-5
E-6
66 56
V-REC-ST-H
CVIN
27
76
VCR-POWER
CAP-PWM
X-OUT(12MHz)
39
35
XC-IN(32MHz)
85
POWER_FAIL_L
72
IIC-DATA1
TIMER SYSCON MICON IC IC1001 OEC7071A
38
X-IN(12MHz)
36
XC-OUT(32KHz)
71
IIC-CLK1
94
CTL-
95CTL+
62
7
B
AFT(MONI)
63
G
64
R
59 58
V-SYNC
H/C-SYNC
60
OSD OUT1
30
29
REC LED
T-REC LED
9
KEY 1
14
REMOCON-IN
28
TV-POWER
10
KEY 2
34
RESET-L
87
11
CAP-FG CAP-FWD
50
80
REEL-T
TAB SW
321
OS753
AT+5V
CH DOWN
CH UP VOL. UP VOL. DOWN
POWER ON/OFF
REC/OTR STOP/EJECT PLAY
FF/CUE
REW/REV
X1001 12MHz
X1002
32.768KHz
1 OUT
SYSTEM RESET IC IC1003 R3111N311A/C-TR
6
5
SDA
SCL
EEP ROM IC IC1099 S-24C04BDP-LA
SW1001
Q1023
X_RAY_SW
D793
D791
D792
Q1007
REC LED SW
(AI)
Q1008
ON TIM/T-REC
LED SW(TO)
9
5
CAP/M F/R
LDM_CTL
4
CAP_CTL
CP1004
1
3
4
2
REEL SENS.
Q1005
POWER FAIL2
MICON/OPERATION/DECK BLOCK DIAGRAM
X_RAY SDA SCL
OSD_R
CTL+
SD_VIDEO
CTL­V. REC_ST_H
VD
OSD_G
AFT_M
OSD_B
OSD_BLK
HD
Y/C/AUDIO/CCD/ HEAD AMP/ IN/OUT
TV
CAPSTAN DD UNIT
TV_POWER_H
FF/REW-L
97
73
CTL AMP-OUT
Q1004
FF/REW_SW
J701
AUDIO L
VIDEO
4
2
1
3
FRONT_VIDEO
FRONT_AUDIO
VCR_POWER_H
TV
Q4204
TV POWER
SW
82TV_A_MUTE
TV_A_MUTE
2
1
MSSEN-B
MSSEN-A
14
3
2
1
4
32
MS_SEN A
Q1009
MS_SEN B
Q1003
AT+5.6V
P. CON+5V
20
REC/OTR T-REC
POWER/PLAY
69 CS
6
VIDEO ENV
81
VCR_A_MUTE
Y/C/AUDIO/CCD/
HEAD AMP/
IN/OUT
13
DUMMY-V.SYNC
DUMMY_V. SYNC
Y/C_CS ENV_DET
VCR_A_MUTE
41
X-RAY_TEST
X-RAY_TEST
1
CAP_FG
12
I LIMIT
77
90
DRUM-PWM
CTL FG/PG
18
VIDEO-H. SW
H. SW
68
SDATA
70
SCLK
Y/C_DATA Y/C_CLK
SD_SYNC
24
H_CONTROL
H_CONTROL
12
11
10
CYL_CTL
CTL_FG/PG
I LIMIT
AT+5.6V
3
EOT
61
CENTER LED
4
BOT
D1003
Q1013
EOT SENSOR Q1024
LED DRIVER
Q1011 BOT SENSOR
Page 37
OS753
J351
D791
D793
SW795SW793SW792SW794
SW791
SW799
SW798
SW796
SW797
SW751
C382
R351
R350_1
W811
C755_1
R766
R754_2
R793_2
R772_1
W001
R775_1
R776_1
R777_1
J701_1
R773_1 R774_1 R771_1
W002
W003
W004
W005
W006
W007
W008
R778_1
W814
W009
W815
CD352
CD757
CD351_1
W812
W805
PRINTED CIRCUIT BOARDS
OPERATION
SOLDER SIDE
F-1
F-2
Page 38
R607
W021
W022
W145
D620
D619
D621
W085
C655
L612
W088
R668
C648
C652
C644
C632
C627
L607
CF603
CF604
C687
W071
R654
W093
B604
C641
C664
Q606
W067
C649
C665
D605
W181
X602
W092
W138
W184
W126
D611
D609
W129
W064
W065
W066
W072
D615
D610
W069
W074
B602
CF601
C418
C438
T401
C417
C431
D409
D408
CP851A
R456
R460
D412
W018
C433
Q405
D613
D612
W878
D614
W063
W020
W019
L601
W016
C624
W032
W031
W030
W068
W070
W073
W089
W091
W094
W131
W086
W175
W171
W168
W169
W167
W187
W165
W149
W135
W055
W054
R1008
C406
C537
W036
HS401
Q406
HS402
W857
W917
R651
W004
W807
C423
R501
D507
R500
D537
C422
C405
C524
D517
C424
W008
W820
W832
W890
W884
W823
W824
FH503
FH504
F502
S102A
W037
R640
W035
W014
R508 R512
C507
C508
TH501_1
L603
W838
W002
D510_1
R408
R421
C402
W023
B403
R453
D410
W866
R490
D515
C534
D528
C509
L502
CP502
R419
R554
R505
C610
C612
D508
D514
C539
W011
R514
W001
C407
W872
W871
IC401
C354
CP351_1
C523
C519
VR502
W009
W043
R553
R532
C516
C518
C505
C511
R415
R450
L401
R447
B402
CP401
C506
F501 FH501FH502
FB401
D518
D530
D520
D521
HS501_1
Q510
C535
R517
R502
Q511
W012
R531
R529_1
Q507
W006
W007
D533
D534
W005
IC501
R511
D535
W013
D536
T501
W034
R402
R422
D401
R423
W853
VR401
D405
D407
D411
W028
W040
R440
C517
C521
W029
Q806_1
Q804_1
Q805_1
CP851B
C801
CP801
R802
TP802
L801
R810
R805
R807
TP803
TP801
J801_1
W151
W124
R503
D505
D512
D519
D501
W059
W057
W813
IC502
W146
W056
W862
D513
R522
W049
W041
W045
R528
CP505
CP504
C1001
C1007
R1064
TP601
W033
W840
W090
C1003_1
C1021
C643
C1058
W180
W801
W144
Q1009
Q1003
W163
W139
W270
W242
W269
Q603
W255
W253
W239
Q602
C1016
C1015
W240
W232
L1001
Q1005
R1016
C1020
W268
W249
X1001
X1002
IC1099
SW1001
W237
W238
W250
W254
W150
CP757_2
W912
W213
Q1013
W257
W173
R4028
W087
Q4006
W112
W111
W108
W107
CP4001_1
W122
W096
W046
W097
C4025_1
C351
C356
C355
W104
W103
W105
W024
W101
W116
R612
W120
W109
TP4001
R4007
R4006
W027
W080
C4034
C4030
Q4002
C4035
T4001
L4003
Q4005
C4010
C4031
C4067
C4058
C4048
C4051
W098 W095
C4027
W119
L4001
C4023
C4012
L4005
W118
C4065
L4006
W099
C4063
R4004
W121
X4001
C4052
C4047
C4046
C4062
C4049
C4053
R4032
W117
W048
R4029
CP353_1
W047
IC351
CP4003
R4014
W044
Q4001
C4002
CP1003
R4048
L4009
C4042
W223
W189
W192
W100
CP4002
W106
W082
TP1002
W193
W194
W195
W191
W198
C1018
W207
W211
W078
W212
W205
W158
D1003
Q1011
D4003
CP1001
W152
W081
W155
W197
W153
W157
W156
W160
W243
W174
W143
R1010
W127
W179
W147
W084
W162
W178
W125
W200
W201
W202
W236
W248
W215
W154
W209
W159
W182
W230
W113
W231
W229
W227
W228
W825
W110
W188
W214
W220
W272
W190
W196
W273
W267
W266
W262
W259
W177
W185
C4045
W208 W206
W210
W217
R4016
W234
W246
W233
W148
W225
W130
W051
W114
W115
R808
R820
W203
W199
C659
W166
W172W244
W245
W176
W247
R1028
R672
W061
W850
W137
W814
W026
R1051
C432
C4009
R404
W123
W140
W077
L1003
W277
W863
W075
W076
D1001
W808
W276
W128
W134
S101A
TU601
D602
D601
R655_1
W060
S107X
S107Y
W218
W222
W221
C530
C522_1
W279
W280
W282
W283
TP1001
C1032
C4004
W141
R650
R533
W828
S818X
S818Y
W285
B501
W042
W170
W286
W274
W164
W161
W287
W186
W288
C515
B503
R524
W142
Q605
Q604
W290
W291
D402
D608
D413
CD852
W888
W805
W806
W901
W895
W827
W874
W848
W829
W811
W834
W817
W847
W816
W836
S825X
S825Y
W858
C541
R666
W003
W897
W856
D404
D403
R449
C451
S802Y
S802X
R1066
W915
CD501
W296
PRINTED CIRCUIT BOARDS
SYSCON/CRT (INSERTED PARTS)
SOLDER SIDE
F-3 F-4
2.5A125VOR250V
5A125VOR250V
Page 39
R601
R638
C673
R676
C660
R669
R610
R618
R616
Q601
R620
R609
R665
R622
C618
R615
C622
R608
C636
C625
C672
R625
C640
C674
C650
R633
R644
C651
C654
Q608
C621
R614
R642
R646
R647
R635
R658
C630
R627
C688
R648
R643
R639
R613
R652
R659
R660
R641
C658
R649
C653
R631
C647
R603
C629
R656
R657
R626
R602
C675
R624
C639
C634
IC601
C416
R442
R444
R439
Q404
R420
C527
Q609
R628
C645
R441
R411
R516
C554
R401
C602
C605C604
R416
R413
R414
R504R506R510
C536
C510
R525
R527
C532
C811
R813
R815
R814
C809
C810 R812
R811
C805
R816
Q407
Q505 R513
R507
R636
C631
C1084
C1083
C1082
R1053
R1005
IC1003
C1056
R4026
C4043
C1039_1
R1020
R1047
C1009
C1068
R1050
C667
R1038
R1044
C656
R1007
R1021
R1035
Q403
C1037
R1001
R1046
R1018
C1017
R1049
Q1024
R1078
C1062
C1029
C1065
R1029
C1028
R1017
R1042
R1045
C1061
C1060
R663
C1010
C1023
C1004
R1036
C1027
Q1004
C1022
C1025
R1012
C1019
R1013
R1009
C1013
C1071
R1034
R1033
C1038
C1035
C1034
C1031
R1031
R1032
C1046
C1047
C1040
C1048
R1040
C1049
C1050
R1070
R1083
R1087
IC1001
R1052
Q1007
Q1008
C4206_1
R4015
R4068
W025
W818
R4064
R4062
R4033
R4060
R4054
C4074
R4055
R4057
Q4011
C4075
R4058
R4056
R4052
R4053
R4020
R359
R4017
R4037
C4014_1
R4025
C4038
R4011
C4005
R4010
Q4003
R4023
R4024
R4003
R4002
C4006
R4001
R4022
C4033
R4021
C4032
R4043
R4041
C4061
R4038
R4035
R4034
Q4010
C4037
C4036
Q4012
C4029
R4019
R4018
C4028
C4044
C4059
C4060
C4066
R4042
C4064
R4039
C4020
C4021
C4055
R4012
C4054
C4069
C4019
C4015
C4016
IC4001
C301
R4201
R357
R352
R353
R1011
Q4009
C4041
R1025
R4044
Q4007
R4045
Q1023
C1089
C4076
R4061
R4059
R1075
R1030
R1048
W903
C4057
R4047
C4024_1
R1019
C4050
R1073
C1026
R1022
R1054
R1055
C623
Q612
Q611
C357
C1043
W887
W873
W865
C1042_2
W284
R530
R1063
W810
W894
W907
R4051
W880
W846
PRINTED CIRCUIT BOARDS
SYSCON/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
F-5
F-6
17
33
49
1
1
31
51
81
1
21
41
61
Page 40
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
D4003
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X4001
100CT3R502
C4027
336.3V KA
C4025_1
2206.3V KA
C4012
226.3V KA
C4031
3.350V KA
C4042
100
6.3V
KA
C4034
4.725V KA
C4035
150V KA
C4045
2206.3V KA
C4004
2206.3V KA
C4009
4716V KA
C4023
226.3V KA
C4075
150P CH
C4029
0.01 F
C4074
0.01 F
C4024_1
18P CH
C4014_1
0.047 B
C4002
0.022100V MKT
C4033
820PB
C4054
0.1 F
C4059
0.1 F C4061
0.01 F
C4032
0.0033 B
C4041
0.1 F
C4043
0.1 F
C4020
0.1 F
C4038
180PCH
C4069
0.1 F
C4037
0.1 F
C4044
0.1 F
C4036
390PB
C4005
0.01 F
C4060
0.01 F
C4066
0.022 B
C4028
0.1 F
C4006
0.015 B
C4021
0.1 F
C4015
0.047 F
C4019
0.047 F
C4016
0.068 B
C4064
0.022 B
C4055
1F
C4050
0.22 B
C4057
1F
C4076
0.1 F
R4068
2.2M
R4020
150
R4019
330K
R4001
560
R4021
22K
R4023
33K
R4022
470
R4038
680K
R4045
12K
R4006
47K 1/4W
R4007
39K 1/4W
R4035
100K
R4002
10K
R4003
10K
R4047
12K
R4025
1.5K
R1025
100
R4048
68 1/4W
R4004
15 1/4W
R4052
8.2K
R4054
18K
R4056
4.7M
R4058
2.7K
R4051
2.7K
R4059
10M
R4061
10M
R4012
820
R4064
6.8K
R4010
3.3K
R4044
100K
R4043
3.3K
R4041
1.8K
R4042
820
R4034
82K
R4060 1.5M
R4028
47K 1/4W
R4026
39K
R4015
2.2
R4033
2.2K
R4062
3.3M
R4032
100 1/4W
R4029
47K 1/4W
R4057
6.8K
R4055
1K
R4018
8.2K
R4017
6.8K
R4011
22K
R4053
6.8K
R4039
8.2K
R4024
5.6K
R4037
390
R4014
470K 1/4W
R4016
2.2M 1/4W
C4067
150V KA
C4046
3.350V KA
C4030
1016V KA
C4058
476.3V KA
C4063
476.3V KA
C4053
4.750V KA
C4062
150V KA
C4065
150V KA
C4047
1016V KA
C4052
4.750V KA
C4049
1016V KA
C4051
336.3V KA
C4048
1016V KA
C4010
476.3V KA
Q4001
KTC3198
AUDIO PB SW
Q4002
KTC3198
AUDIO PB SW
Q4006
KTC3203_Y
BIAS OSC
Q4007
2SC2412K
SYNC IN
Q4011
2SC2412K
BUFFER
Q4012
2SC2412K
BUFFER
W897
W880
W888
W818
W858
TP4001
V.ENV
W887
W873
Q4010
2SA1037AK
BUFFER
Q4009
2SA1037AK
BUFFER
Q4005
KTA1266
BIAS CTL
L4001
22uH 0305
L4009
100uH
0305
L4006
47uH
0305
L4003
100uH
0305
L4005
47uH
0305
TUNER VIDEO SIGNAL
RECORD COLOR SIGNAL
RECORD COLOR SIGNAL
CP4003 TMC-T02X-E1
1
2
Q4003
KRA103SRTK
SW
CP4002 IMSA-9604S-06Z14
1
2
3
4
5
6
CP4001_1 TOC-C04X-B1
1
2
3
4
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
CAUTION: DIGITAL TRANSISTOR
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB)
RECORD LUMINANCE SIGNAL
T4001
1626009
COIL,BIAS OSC
1
2345
6
IC4001
LA71201M-N-MPB
Y/C/A/CCD/H.AMP IC
1 10111213141516
17 18 192 20
21 22 23 24 25 26 27 28 29
3
30 31 32 33 34 35 36 37 38 39
4
40
414243444546474849550515253545556575859660
616263646566676869
7
70717273747576777879
8809
H.SW
Y/C_CS
ENV_DET
Y/C_CLK
H.AMP_SW1
Y/C_DATA
P.CON+5V
P.CON+5V
VCR_A_MUTE
P.CON+5V
GND
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
SD_SYNC
PLAY_LED
P.CON+5V
TU_VIDEO
FRONT_VIDEO
P.CON+5V
Y/C_VIDEO
TU_AUDIO
SD_VIDEO
P.CON+5V DUMMY_V.SYNC
FRONT_AUDIO P.CON+5V
TU_VIDEO
TU_AUDIO
SD_VIDEO
Y/C_AUDIO
VD
P.CON+5V SD_SYNC
V.REC_ST_H
CTL+
CTL-
GND
HOT
Y/C_AUDIO
VCR_A_MUTE
PLAY_LED
P.CON+5V
SEARCH_AUDIO
VD
FROMPOWER
TO FULLERASE HEAD
FROM/TO HEAD AUDIO CONTROL
FROM/TO CYLMOTOR
VMA227
PCB010
G-2G-1
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
(SYSCON PCB)
FROM/TO CHROMA/IF
FROM/TO MICON
FROM/TO IN/OUT
AUDIO PB
AUDIO REC
FE HEAD(GND)
FE HEAD(HOT)
SP-CH2 (L)
SP-CH1 (R)
CTL+
CTL-
AE HEAD(-)
AE HEAD(+)
SP COM
NC
NC
NC
0
0
0.7
0.7
0
0
5
5.3
0
5.2
0
0
0
NC
NC
+
Vref
2.3V
SP,LP
EQ
AMP
ALC
ALC
A-VCC
1 2 3
A-GND
HA
PRE GND
R
P
P
R
P
P
H
L
H
L
REC:LP<EP PB:EP
DET
PB,EE
PB,EE
VREF
REC AMP
MUTE
AUTO BIAS
LINE
AMP
REC
FM-EQ
FM
AGC
VHS
SOPB
P
R
PB
FM EQ
P
R
S-EQ
MAIN
DE-EM
LIM
DOUBBLE
FM DEM
SUB LPF
B
S
DET
EMPHA
FIL
MAIN
4.7K
Y-VCC
V.SYNC
SEP
SEP
6DB
QV/QH
AGC TC2
BAL TC1
REG 4V
1 2 3
VDD 4Fsc
CLOCK
PLL
TIMMING OUT
DRIVER
AUTO-BIAS
CLAMP
CCD
VSS
OUT
IN
VCA
VCA
CLAMP
VCP
ALWAYS
5V
B
VX01
320FH
VCO
SLD
PHASE
EQ
fo-ADJ
PHASE
EQ
Q-ADJ
FM AGC FIL
Y-GND
R
P
FBC
1/2
VIDEO
AGC
Y/C
MIX
NC1
N.L.
DEEM
Y-LPF
CLAMP
DETAIL
ENH
NL
EMPHA
NL
EMPHA
FM MOD
NORMAL
R-EQ TEST
YNR/COMB
3.58M BPF1
B.D
P
PB
AMP
CNC
BGA
BGA
BGA
R
P
AFTER
BEFORE
3.58M BPF2
B-UP AMP
Main CONV
ACC AMP
DET
ACC
C-LPF
4.21M BPF
Sub CONV
R
RPPP
LPF
RP
REC AFC
PB APC
REC APC
P
R
R
P
R
P
C-VCC
SERAIL
DECODER
C-GND
C-ROT RF-SW
IN
AUDIO MUTE HA SW
ENV DET
ACC DET
HA VCC
COMP
OUT
KILL DET
DET
CHROMA
GND
HA
R
R
P
P
R
PB-C
PB-C
R
R
P
P
VSS
SYNC
1
2.8
0
0.7
4
NC
5.2
5.20
4.9
0
0.6
0
5.0
5.0
0 2.3
1.7
5.0
2.2 2.2 2.3 2.2 2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0
0 1.5
0.1 2.2
2.203.33.34.02.61.92.8
2.2
0
4.0
1.8
0.7
0.7
0.7
1.7
1.8
2.0
2.0
2.0
0
2.2
2.0
0
0.85.05.02.35.04.84.84.8000
0
4.9
5.0
0.5
1.7
0
3.0
2.8
3.1
3.1
2.6
2.0
4.0
NC
2.0
2.3
2.3
1.6
2.9
3.6
0
4.9
2.8
1.8
2.3
0
3.4
4.0
2
3
NC
Page 41
ABC DEF GH
ABC DEF GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
L1001
2.2uH
Q1024
KRC103SRTK
LED DRIVER
Q1004
KRC103SRTK
FF/REW_SW
S818Y
S825Y
DEFLECTION SIGNAL
CD852
CH01408A
IC1001
OEC7071A
TIMER SYSCON MICON IC
110
100
11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30
31 32 33 34 35 36 37 38 39
4
40 41 42 43 44 45 46 47 48 49
5
50
515253545556575859660616263646566676869770717273747576777879880
818283848586878889
9
90919293949596979899
IC1099
S-24C04BDP-LA
EEP ROM IC
1234
5678
D1003 LNA2702L010R
Q1003
RPI-352Q01R
MS_SEN B
1234
Q1009
RPI-352Q01R
MS_SEN A
1234
CAPSTAN AFC SIGNAL CYLINDER AFC SIGNAL CYLINDER APC SIGNAL
Q1013
ST-304L
EOT SENSOR
Q1011
ST-304L
BOT SENSOR
CP1001 TMC-J12P-B2
1
10
11
12
2
3
4
5
6
7
8
9
Q1005
RPI-301
REEL SENSOR
1
2
34
IC1003
R3111N311A/C
SYSTEM RESET IC
123
45
SW1001
MXS01380MPP0
D1001
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X1001
100CT01207
X1002
100DA32R01
C1003_1
2206.3V YK
C1020
1016V KA
C1021
3325V YK
C1058
1006.3V YK
C1084
0.0047 B
C1082
0.01 F
C1039_1
0.1 F
C1025
0.0022 B
C1019
0.001CH
C1048 18PCH
C1040 18PCH
C1047 18PCH
C1046 20PCH
C105020PCH
C104922PCH
C1029
0.0068 B
C1031
0.001B
C1034
0.1F
C1022
0.1F
C1017
0.1 F
C1062
1B
C1037 390PCH
C1023 220PCH
C1010 220PCH
C1004
100P CH
C1068
0.0022B
C1056
0.1F
C1028
0.1 F
C1065
0.1 F
C1089
0.1 F
C1061 100P CH
C1071
100P CH
C1038
680P CH
C1026
0.01F
C1027
0.0039B
C1035
220PCH
C1013
0.0039 B
C1083
0.0022 B
C1060 100P CH
C1042_2
1F
C1043
0.01B
C1009 220PCH
R1051
18K 1/4W
R1016
270 1/4W
R1010
3.3K 1/4W
R1030
4.7K
R1032 10K
R1064
1K1/4W
R1001
3.3K
R1008
1K1/4W
R1055
4.7K
R1046
4.7K
R1040
33K
R1047
4.7K
R1019
47K
R1052
390
R1083
33K
R1087
33K
R1050
100
R1009 560
R1013 560
R1031
1K
R1078
390K
R1034
1M
R1036 4.7K
R1021
10
R1005
2.7K
R1049
4.7K
R1029
4.7K
R1028
22K 1/4W
R1020 22K
R1017 39K
R1053 220
R1075
4.7K
R1044
5.6K
R1035
10
R1007
22
R1033
1K
R1012
10K
R1048
4.7K
R1011
180K
R1070
100
R1054
4.7K
R1042
220
R1045
5.6K
R1038
220
R1073
180K
R1018
47K
R1063
4.7K
R1066
4.7K 1/4W
R1022 4.7K
C1032
22016V YK
C1015 4710V KA
C1016 2216V KA
C1018 4.750V KA
C1007
4725V YK
C1001
4716V YK
Q1023
2SC2412K
X_RAY_SW
W825
W810
W805
W894
TP1001
SERVICE
TP1002
H.SW
L1003
22uH
ELC0607
CAUTION: DIGITAL TRANSISTOR
TUNER VIDEO SIGNAL
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
POWER_FAIL2
P.CON+5V
GND
SDA
SCL
OSD_R
OSD_G
OSD_B
REEL_T
REEL_S
Y/C_CS
CAP_CTL
Y/C_CLK
CENTLED
OSD_BLK
SD_SYNC
Y/C_DATA
CYL_DRIVE
V.REC_ST_H
MOTOR+12V
GND
Y/C_CLK
Y/C_DATA
Y/C_CS H.SW
SD_VIDEO
X_RAY
ENV_DET
VCR_A_MUTE
CTL+
CTL-
CAP_FG
DUMMY_V.SYNC
V.REC_ST_H
VCR_A_MUTE TAB_SW
H.AMP_SW1
CAP_M/F/R
SD_SYNC
TV_A_MUTE
PLAY_LED
CAP_CTL
IIC_OFF
LDM_CTL
CAP_FG
CYL_DRIVE
POWER_OFF_H
X-RAY_TEST
HD
VD
AFT_M
SCL
EOT
BOT
SDA
CTL-
OSD_R
CENTLED
OSD_G
CTL+
OSD_B
OSD_BLK
RESET
AT+5V_BACKUP
AT+5V
PLAY_LED
VCR_POWER_H
TV_POWER_H
PROTECT
TV_POWER_H
TAB_SW VCR_POWER_H
H.SW
IIC_OFF
H.AMP_SW1
REC_LED T-REC_LED KEY_A KEY_B REMOCON_IN
CAP_M/F/R
SCL SDA
DUMMY_V.SYNC
REMOCON_IN
LDM_CTL
PROTECT
MS_SEN-A
MS_SEN-B
T-REC_LED
ENV_DET
H_CTL
REC_LED
AFT_M
KEY_A
KEY_B
EOT
BOT
TV_POWER_H
RESET
REEL_S
REEL_T
MS_SEN-A
MS_SEN-B
TV_A_MUTE
X_RAY X-RAY_TEST H_CTL
12
FROMPOWER
(CP101)
VMA227
PCB010
G-4G-3
0NC0
NC
FROM/TO Y/C/AUDIO/HEAD.AMP
FROM/TO CHROMA/IF
FROM/TO IN/OUT
TO SOUND AMP
FROM/TO DEFLECTION
MICON SCHEMATIC DIAGRAM (SYSCON PCB)
3.9
0
13
NC0
0
5.1
25 PROTECT
FROM/TO DECK
CAP_VCO
VCC
I_LIMIT
GND[M]
GND
LD/CY_VCO
CAP_CTL
LDM_CTL
CYL_FG/PG
CYL_CTL
CAP_FG
CAP_M/F/R
FROM/TO DECK
GNDIN
NC NC
OUT
8
NC NC
NC
NC
000
0
5.2
5.2
0
00 0 00
NC
00 00
0
0
1.5
1.3
2.1
2.6
0
5.2
2.5
2.6
5.2
5.22.11.62.300002.62.52.51.8
0
5.1
5.9
2.5
2.0
0
0.6
2.5
2.5
0.2
0
2.5
2.6
2.5
5.1
5.2
0
1.4
0.90.9
0.8
0
00
1.4
5.20.8
0.5
0
6 VIDEO-ENV
5 HI-FI-ENV
19 HI-FI-H.SW
18 VIDEO-H.SW
82 TV_A_MUTE
81 VCR_A_MUTE
POWER_FAIL_L
17 ENV-CMP-IN
98 AMP-VCC
99 ANALOG VCC
100 DEW
50 TAB SW
49 OSD-VSS
REEL-T
CAP-FG
AMP-VSS
AMP-VREFOUT
AMP-VREFIN
C
CTL-
CTL+
AMP C
CTL AMP-OUT
62 B
58 H/C-SYNC
59 V-SYNC
57 NUA
55 VHOLD
53 OSD-VCC
52 SD-IN(MONI)
VSS
CLKSEL
OSC-IN2
OSC-OUT2
NUB
X-OUT(12MHz)
X-IN(12MHz)
VCC
XC_OUT(32KHz)
XC_IN(32KHz)
RESET-L
REC LED
T-REC LED
TV-POWER
VCR-POWER
EXT-MUTE
16 HEAD.AMP.SW
15 COLOR ROTARY
13 DUMMY-V.SYNC
12 CAP-LIMIT
11 CAP-FWD
7 AFT(MONI)
8 AFT(REC)
BOT
EOT
MSSEN-A
MSSEN-B
72 IIC-DATA1
71 IIC-CLK1
64 R
63 G
CAP-PWM
DRUM-PWM
74 JUST CLOCK
60 OSD OUT1
56 CVIN
54 HLF
SERVICE
14 REMOCON-IN
32 RENT_H
31 ON-TIMER LED
73 FF/REW-L
0
0
5.1
X-RAY_TEST
4.9 0 0 0
5.0
0.1
NC
0000
5.202.62.5
VSS
A2A1A0
SDA
SCL
TEST
VCC
61 CENTER LED
65 NC
67 NC
68 SDATA
69 CS
70 SCLK
75 VOLUME
IIC OFF
NC
4.8
5.2
5.2 NC
CAP FULL
66 V REC START H
REEL-S
NC
9
6
7
0.2
0
5.9
4.8
0000 4.7 5.24.24.9
5.25.2 2.22.22.41.41.4 5.22.32.62.6 5.25.2
5.2 5.1
0
11
0.9
0
1.2
10
9 KEY 1
10 KEY 2
20 LDM CTL
21 NC
22 DEGAUSS_H
23 NC
24 H_CONTROL
5.0
5.25.2
33 PLAY LED
NC
NC
NC
NC(AV1)
48 (AV2)
83 (EXT MUTE)
NC
NC
NC
DRUM FG/PG
NC
Page 42
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
B.SIGNAL
CP353_1
173979-7
1234567
CP757_2
1-173979-0
1102345678
9
Q1007
KRC102SRTK
REC LED SW(AI)
Q1008
KRC102SRTK
ON TIM/T-REC LED SW(TO)
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C4206_1
0.0022 B
R4201
75
W806
W903
(AI)
W866
W912
(AI)
CAUTION: DIGITAL TRANSISTOR
TUNER VIDEO SIGNAL
CP351_1
173979-6
12345
6
CP1003
173979-4
123
4
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
SOUND_GND
SOUND+
SP_OUT
AT+5V
INT-MONI
B.OUT
IIC_OFF
SDA
SCL
T-REC_LED
REC_LED
GND
KEY_B
KEY_A
REMOCON_IN
Y/C_AUDIO
Y/C_VIDEO
FRONT_AUDIO
FRONT_VIDEO
FROMPOWER
FROM/TOY/C/AUDIO/HEAD.AMP
VMA227
PCB010
G-6G-5
FROMCHROMA/IF
FROM/TO SOUND AMP
FROM/TO MICON
TEST POINT
TEST POINT
Y/C_VIDEO
Y/C_AUDIO
REMOCON_IN
KEY_A
T-REC_LED
REC_LED
KEY_B
(CD757)
FROM/TO OPERATION
(CD351)
SP_OUT
SOUND_OUT
SOUND_GND
FRONT_VIDEO_IN
FRONT_AUDIO_IN
FROM/TO OPERATION
NC NC NC
SDA
SCL
GND
B.OUT
GND
INT-MONI
IIC OFF
AT+5V
GND
GND
GND
AT+5V
0
0
3.6 3.6
0
0
IN/OUT SCHEMATIC DIAGRAM
(SYSCON PCB)
Page 43
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
B602
W5RH3.5X5X1.0
B604
W4BRH3.5X6X1
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
R.SIGNAL
G.SIGNAL
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
OUTOUTGININ
CF601 SAF45MFY220ZR
SAW FILTER
12345
TU601 TECC1040PG32D
1
10
11
1213
1415
2
3
4
5
6
7
8
9
LUMINANCE SIGNAL
COLOR SIGNAL
IC601
M61206FP
CHROMA IC
1 10111213141516
17 18 19
2
20 21 22 23 24 25 26 27 28 29
3
30 31 32
333435363738394404142434445464748
49
5
50515253545556575859
6
6061626364
789
CF604
EFCT4R5MW5
CF603
EFCT4R5YS5A
CP851A B2013H02-10P
1
10
2
3
4
5
6
7
8
9
IS NON POLAR ONE.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
C665
1016V KANP
L601
3192001
1
3
B.SIGNAL
L607
22uH
L612
6.8uH
Q609 KRC111SRTK
PROTECT
Q608 KRC111SRTK
CUT OFF SW
Q611
KRC102SRTK
H CONTRO
Q612
KRC102SRTK
H CONTRO
S107XS107Y
S818X
DEFLECTION SIGNAL
D615
MTZJ6.8B
D611
MTZJ6.8B
D602
MTZJ8.2B
D609
MTZJ6.8B
D610
MTZJ6.8B
D621
1SS133
D605
11ES1-EIC
D608
SB140-EIC
D620
1SS133
D619
1SS133
D612 1SS133
D614 1SS133
D613 1SS133
D601 1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X602
100CT3R505
C653
0.01 F
C658
0.22 B
C629 68P CH
C664
163V MKT
C618 330P CH
C625
1F
C631
1F
C623 0.0047 B
C639
0.01 F
C636
0.01 F
C651
47PCH
C650
0.015 B
C630
100PCH
C640
0.1 F
C674
120PCH
C656
0.01 F
C605
100PCH
C673
220PCH
C672
0.01 F
C687
0.1 F
C621 0.01 F
C622
0.22 B
C654
18P CH
C675
68PCH
C660
0.1 F
C688
0.056 B
C667
0.01 F
C602
0.022 F
C647
0.01 F
C645
1B
C634
0.01 F
C604
100PCH
R666
100
1/4W
R622
330
R620
100
R647
2.2K
R610
1M
R665
150K
R618 10M
R657
1K
R655_1
1K 1/4W
R638
8.2K
R601
2.2K
R633
8.2K
R646
27K
R642
5.6K
R636 100
R659 1.5K
R625
10K
R658 1.5K
R644
100
R652
4.7K
R672
1K 1/4W
R648
2.2K
R626
10K
R660 1.5K
R654
820 1/2W
R669
470
R615
470
R676
1K
R643
47K
R635
100
R614 390K
R609 680
R607
220 1/2W
R668
470
1/4W
R612
680 1/4W
R616
1K
R627
12K
R639
12K
R663
100
R628
100
R650
470 1/4W
R608
10K
R631
6.8K
R656
1K
R624
2K
R602
100
R603
100
R613
12K
R641
22K
R649
2.2K
C655
4716V KA
C648
0.2250V KA
C652
4716V YK
C649
150V KA
C641
100010V YK
C644
2250V YK
C627
150V KA
C624
4716V YK
C643
2250V YK
C610
4.750V KA
C612
4706.3V YK
C632
2.250V KA
C659
1006.3V KA
Q604
2SD400E
REG.
Q603
KTC3203_Y
REG.
Q606
KTC3203_Y
REG.
Q605
2SD400E
REG.
Q602
KTC3203_Y
REG.
W846
W827
W862
W874
W848
W871
W829
W850
W901
W895
W878
W801
W872
W865
W828
Q601
2SA1037AK
BUFFER
L603
47uH
0305
CAUTION: DIGITAL TRANSISTOR
TUNER VIDEO SIGNAL
PLAYBACK VIDEO SIGNAL
PROTECT
AT+5V
AT+5V
AT+5V_BACKUP
VD
OSD_R
OSD_G
OSD_B
OSD_BLK
SDA
TU_VIDEO
SCL
AFT_M
SD_VIDEO
VCR_POWER_H
TU_VIDEO
HD
TU_AUDIO
POWER_OFF_H
Y/C_AUDIO
VD
INT-MONI
INT-MONI
B.OUT
AT+5V
AUDIO_OUT
AUDIO_OUT
Y/C_AUDIO VD
TU_AUDIO
OSD_BLK
AT+5V
ACL
GND
V_OUT
HEATER
AFT_M
V_FEEDBACK
180V
H_OUT
H.PLUSE
H_GND
V_OUT
OSD_R
OSD_G
OSD_B
HD
CUT_OFF
B.OUT
AT+30V
G.OUT
GND
R.OUT
UNREG+8V
AT+12V
H_GND1
HEATER
P.CON+5V_SW
AT+5V
180V
POWER_OFF_H
VCR_POWER_H
H.PLUSE
AT+5V
TV_POWER_H
H_OUT
R.OUT
G.OUT
B.OUT
AT+12V
SCL
SDA
H_GND
PROTECT
CUT_OFF
VMA227
PCB010
FROM/TO DEFLECTION
TOSOUND AMP
G-8G-7
PROTECT
FROM/TO MICON
FROM/TO TV POWER
FROM MICON
FROMTV POWER
TO IN/OUT
FROM/TO Y/C/AUDIO/HEAD.AMP
0
0
0
0
4.5
3.6
(CP851B)
NC
NC
NC
NC NC
IF
+30V
SDA
SCL
AGC
+5V
NC NC
1.8
2.5
4.9
0
2.5
2.5
FBP IN
SCL
RF AGC OUT
AFT OUT
VIF GND
VIF VIDEO OUT
QIF IN
VIF APC FILTER
VREG Vcc
VIF VCO F/B
AUDIO BYPASS
EXT AUDIO IN
FM DIRECT OUT
Hi Vcc
R OUT
AFC FILTER
DEF
H OUT
SDA
H VCO F/B
POWER ON CONT
STRAT UP Vcc
B IN
V RAMP FEEDBACK
Y SW OUT
G OUT
INTELLIGENT MONI
MCU RESET
VIF Vcc
5.7V REG OUT(FOR CPU)
47 LIMITER IN 48 IF AGC 49 QIF OUT 50 AUDIO OUT
46 SW REG CONT
64 VIF IN
1 VIF IN
17 V OUT 16 B OUT
H.PLUSE OUT
GND
NC
NC
180V
TO CRT
IF AGC FILTER
29.3
4.8 8.3
5.5
5.0 8.3
5.6
11.0 8.2
8.8
5.08.3
2.0 2.0 8.2 8.2 8.2 4.0 5.5
2.0
0
8.0
8.0
3.7
3.04.0 4.8 2.84.03.33.02.6 0 00.43.22.55.05.01.5
1.5
2.7
2.3
2.9
2.4
0
0
2.2
3.0
9.0
3.2
2.0
3.0
2.3
2.4
2.3
V RAMP CAP
VIDEO CHROMA Vcc
fsc OUT
V PULSE OUT
CHROMA APC FILTER
TV/Y IN
5v REG
VIDEO/CHROMA GND
FAST BLK
34 EXT C in 33 8.7V REG OUT 32 X’TAL 31 ACL/ABCL
NC
5.6 0 0 3.2
3.2
2.0
8.8
3.3
3.0
0
4.7
0
0.1
7.3
4.9
4.9
4.8
R.OUT
NC
NC
CHROMA/IF SCHEMATIC DIAGRAM
(SYSCON PCB)
5.5
8.04.8
0.8
0
5.0
G IN
R IN
0.4
1.0
0
5.6
3.7
HEATER
H GND
G.OUT
B.OUT
NCNC
2.6
1.9
0
Page 44
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
IC351 AN7511
SOUND AMP IC
1234
5678
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C354
220016V YK
C351
2.250V KA
C357
0.001 CH
C301
0.0068 B
R353
68K
R359
47K
R357
5.6K
R352
4.7K
C355
1016V KA
C356
1050V YK
W814
W808
AUDIO SIGNAL(REC)
SP_OUT
SOUND+
SOUND_GND
TV_A_MUTE
TV_POWER_H
SOUND+B
GND
SOUND_GND
AUDIO_OUT
VMA227
PCB010
G-10G-9
FROMMICON
FROMTV POWER
FROMCHROMA/IF
FROM/TO IN/OUT
-+
0
08.2 3.5 3.4
3.95.1 0.3
SOUND AMP SCHEMATIC DIAGRAM
(SYSCON PCB)
Page 45
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
BLUE
BROWN
CD501
0R414903
AC120V_60Hz
R529_1
2.7K
R528
0.22 1W
HS504
763WSA0019
HS501_1
763WSAA013
R517
330 1W
R502
10 3W
R514
0.33 1W
R501
2.2 5W
IC502
TLP621(GR)
FEED BACK
1
2
34
VR502
330
+B ADJ
5A 125V
5A 125V
F501
5A125V
51MS050LCC
F502
2.5A125V
51MS025LCC
FH501
EYF-52BC
FH502
EYF-52BC
FH504
EYF-52BC
FH503
EYF-52BC
CP502
A1561WV2-2P
1
2
21
L503
8R140031
DEGAUSS
COIL
L502
1R0A103F24
12
34
TH501_1
ZPB45BL3R0A
REPLACE ONLY WITH THE SAME TYPE FUSE
N’UTILISER QUE DES FUSIBLE DE MEME TYPE
CAUTION:
ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
2.5A 125V
2.5A 125V
S
D
G
Q510
STP5NC50FP
SWITCHING
IC501 KIA78R05PI
5V REG IC
1234
T501 81290804
1
10
11
12
13
14
15
16
17
18
2
3
4
5
6
8
C522_1
1160V YK
B503
W5RH3.5X5X1.0
B501
BL02RN2-R62T2
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
IS NON POLAR ONE.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
S802Y
S802X
S825X
S101A
S102A
CP505
003P-2100
CP504
003P-2100
D501
MTZJ10B
D535
MTZJ18B
D534
MTZJ18B
D515
MTZJ33B
D528
MTZJ5.6B
D520
RM11C-EIC
D530
RM11C-EIC
D519
SB290S
D514
1SS133
D512
SB290S
D507
SB290S
D536
10ELS6N
D510_1
RU2AM-EIC
D505
SB290S
D508
1SS133
D533
1SS133
D513
1SS133
D517
10ELS2N
D518
RM11C-EIC
D521
RM11C-EIC
D537
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C524
100016V MHE
C511
47025V YK
C523
47035V
YK
C521
220200V YXF
C541_1
820P2KV R
C517
0.00222KV R
C506
0.22275V PHE840
C532
270P B
C554
0.0022 B
C519
470P500V B
C518
470P500V B
C505
470P500V B
C510
0.0056 B
C515
0.01100V MKT
C535
0.0012KV
R
C536
0.022 B
C516
470P500V B
C507
0.001500V B
C508
0.001
500V
B
C530
470P250V KX
C539
0.0033250V KX
C527
1F
R508
56K 1/2W
R516
10K
R522
100 1/4W
R651 10 1/2W
R503
1 1/2W
R532
4.7K 1/4W
R533
1.2K 1/4W
R505
330 1/4W
R640 10 1/2W
R553
39K 1/2W
R554
22K 1/4W
R527
10K
R500
2.7M 1/2W
+-10%
R525
1.8K
R524
560 1/4W
R512
56K 1/2W
R513
10K
R507
47K
R511
1M 1/4W
R5041MR5061MR510
1M
R530
1K
R531221/4W
C537
4750V MHE
C509
470200V UP
C534
100016V YK
Q507
KTC3198
FEED BACK SWITCHING
Q511 KTC3203_Y
SWITCHING
W856
W834
TP601
W838
Q505
2SA1037AK
POWER_FAIL
SOUND+B
GND
SOUND_GND
+B
GND
P.CON+5V
AT+30V
GND
+B
AT+12V
H_GND_1
H_GND
GND
AT+12V
GND
P.CON+5V
POWER_FAIL2
GND
MOTOR+12V
POWER_FAIL
UNREG+8V
H_GND AT+30V
AT+12V
UNREG+8V
AT+5V
POWER_FAIL2
POWER_FAIL
AT+5V
P.CON+5V_SW
GND
VMA227
PCB010
G-12G-11
TO IN/OUT
TO MICON
(MOTOR GND)
TO DEFLECTION
TO Y/C/AUDIO/HEAD.AMP
TO SOUND AMP
FROM/TO CHROMA/IF
4.20
4.89
4.9
0.4
0.5
3.4
8.02
0.4
53.6
54.4
3.4
0.5
121.7
NC
NC
6.0
5.4
15.7
IN OUT GND SW
SG
SB
135V
HG
LG
5V
12V
12V
DC IN
COL
GND
ADJ
NC
NC
(SYSCON PCB)
POWER SCHEMATIC DIAGRAM
5A 125V
5A 125V
(F501) AND 2.5A 125V (F502)
(F501) ET 2.5A 125V (F502)
Page 46
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
D412
1N4937
D407
1SS133
D411
1SS133
B
G
R
11
6
8
10
9
175
V801
A34JXV70X53N45
T401
ETH09K14BZ
1
2
34
6
Q406
2SD2627LS
-CBC11
H.OUTPUT
CD801
SM1098-009-1A
IC401 AN5522
V.OUTPUT IC
1234567
CP401
A1561WV2-A5P
1
2
3
4
5
GND
ABL
GND
GND
8
E8
TER
HEA
E27
E12
B+
E180
S
F
AFC
COL
HV
FB401 3213015R
1
10
11
2
3
4
5
6
7
8
9
R451
2.7 1W
R449
1 1/2W
R450
2.7 1W
R447
68 1/2W
HS402
763WSAA013
HS401
763WSAA013
VR401
2.2K
V.POSI
METAL
B402
W5RH3.5X5X1.0
B403
W5RH3.5X5X1.0
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
IS NON POLAR ONE.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
Q403
KRC111SRTK
SWITCHING
DEFLECTION SIGNAL
CD803
CH012101
D404
MTZJ30B
D403
MTZJ30B
D410
MTZJ6.8B
D409
HZ11B3L
D408
HZ27-1L
D413
1N4937
D402
1N4937
D401
11E1-EIC
D405
11E1-EIC
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C402
100035V YK
C418
2250V YK
C451
0.22
100V
TF
C424
0.00911.25KV MPP
C438
0.001500V B
C423
0.47250V PMS
C417
0.0022
500V
B
C416
22PCH
R490
68K 1/4W
R404
1K 1/4W
R420
8.2K +-1%
R414
12K
R460
100 1/4W
R439
22K +-1%
R423
10K 1/4W
R440
51K 1/4W
R441
56K
R419
330 1/2W
R416
82K
R415
2.2 1/2W
R413
1.8K
R411
33K +-1%
R456
4.7K 1/2W
R442
15K +-1%
R444
18K+-1%
R401
470
R421
220 1/2W
R408
680 1/4W
R453
180K 1/4W
R422
6801/2W
R402
6801/2W
C431
2.2250V YK
C432
0.150V YK
C407
100025V YK
C405
150V KA
C406
10035V MHE
C422
1250V MHE
C433
33025V YK
Q405
2SC1627_Y
H-DRIVE
Q407
2SC2412K
H CONTROL SWITCH
W811
W817
W816
W807
W853
W917
W820
W890
W832
W884
W823
W824
W847
W907
W813
W840
W857
W863
L401
4.7mH 0909
CAUTION: DIGITAL TRANSISTOR
Q404
KRA104SRTK
SWITCHING
CAUTION: DIGITAL TRANSISTOR
H_CTL
V_OUT
V_FEEDBACK
GND
ACL
H.PLUSE
HEATER
H_GND
180V
AT+5V
H_OUT
GND
H_GND
H_GND_1
AT+12V
+B
X_RAY
X-RAY_TEST
VMA227
PCB010
G-14G-13
FROM/TO MICON
4.9
FROMPOWER
FROM/TO CHROMA/IF
FROMMICON
(SYSCON PCB)
DEFLECTION SCHEMATIC DIAGRAM
FROM/TO DECK
0.05
0.3
4.89
TO CRT
NC
NC
2
0
0.7
1.5
22.3
0
NC
1
SCREEN
FOCUS
0
Vcc GND
THERMAL PROTECTION
AMP
­+
PUMP UP
0
3.6 25.9 2.0 0 12.5 26.3 3.7
TO DY
135.0
8.1
136.0
262.0
1.3
262.0
0
18
0
1.3
0.2
NC
31.0 0
22.3
19
31.0
0.5
0
0
0
10.8
20
17
Page 47
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
TP801
TP803
TP802
TM101
R25-1195
ANT001
T4-216BNK-BK
F
J801_1
HPS3200-010501
1
3
4
567
8
9
R810
12K 1W
R802
12K 1W
R805
12K 1W
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
R.SIGNAL
G.SIGNAL
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
B.SIGNAL
CP851B B2013H02-10P
1
10
2
3
4
5
6
7
8
9
S801
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C811
470PB
C810
470PB
C801
0.00222KV B
C809
470PB
C805
100P CH
R807
2.7K 1/4W
R816
4.7K
R813
390
R812
390
R815
4.7K
R811
390
R814
4.7K
R808
2.7K 1/4W
R820
2.7K 1/4W
Q806_1
2SC4217
RED AMP
Q804_1
2SC4217
BLUE AMP
Q805_1
2SC4217
GREEN AMP
W836
L801
220uH
CP801
A2361WV2-2P
1
2
GND
CUT_OFF
B.OUT
G.OUT
R.OUT
H_GND1
HEATER
180V
SCREEN
G-16G-15
(CD801)
H_GND
CUT_OFF
ACCESSORY
(CRT PCB)
CRT SCHEMATIC DIAGRAM
NC
FROM DEFLECTION
GND
FOCUS
GND
180V
GND
R.OUT
NC
NC
(CP851A)
FROM CHROMA/IF
HEATER
G.OUT
B.OUT
132.3
2.8
2.5
0
104.1
126.5
0
0
0
127.5
127.5
2.8
2.5
132.5
21
23
132.1
2.9
22
2.5
PCB110 TCA377
Page 48
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
GND
B+
Vout
OS753
PIC-37143TH5
1
2
3
SW751
EVQ21505R
POWER ON/OFF
SW799
EVQ21505R
CH DOWN
SW798
EVQ21505R
CH UP
SW795
EVQ21505R
REC/OTR
SW792
EVQ21505R
PLAY
SW791
EVQ21505R
STOP/EJECT
SW793
EVQ21505R
FF/CUE
SW794
EVQ21505R
REW/REV
SW796
EVQ21505R
VOL UP
SW797
EVQ21505R
VOL DOWN
D793
LTL-4224-031A
REC/OTR
D791
LTL-4224-031A
T-REC
HEH
E
J701_1
AV2-24D-5
FRONT AV JACK
123
4
J351
HTJ-035-28A
HEADPHONE_JACK
1
2
3
4
5
6
7
SPEAKER
SP351
NF-16D27W
8 OHM
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
CD351_1 CH27090A
1
2
3
4
5
6
7
CD757 CH2A019A
1
10
2
3
4
5
6
7
8
9
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C382
10016V KA
C755_1
2206.3V KA
R793_2
270 1/4W
R754_2
270 1/4W
R350_1
22 1/4W
R773_1
2.7K 1/4W
R774_1
5.6K 1/4W
R777_1
1.5K 1/4W
R776_1
1K 1/4W
R775_1
820 1/4W
R772_1
1.5K 1/4W
R771_1
1K 1/4W
R778_1
820 1/4W
R351
22 1/4W
R766
10 1/4W
W812
W811
W805
W815
W814
TUNER VIDEO SIGNAL
CD352 CH12435A
1
2
AUDIO SIGNAL(REC)
(CP757_2)
REMOCON_IN
KEY_A
T-REC_LED
REC_LED
KEY_B
(CP353_1)
SP_OUT
SOUND_OUT
SOUND_GND
FRONT_AUDIO_IN
FRONT_VIDEO_IN
G-18G-17
FROM/TO IN/OUT
FROM/TO IN/OUT
NC
NC
NC
NC
VIDEO
SP +
SP -
AUDIO L
GND
GND
GND
AT+5V
PCB030 TEXA28
OPERATION SCHEMATIC DIAGRAM
(OPERATION PCB)
0
4.5
4.5
Page 49
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
BLUE
BROWN
CD501
AC120V_60Hz
12
11
10
9
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
7654321
7654321
10
9
10
9
8765432
1
8765432
1
4
3
2
1
CP4001_1
6
5
4
3
2
1
CP4002
6
5
4
3
2
1
2
1
CP502
2
1
CP4003
HEH
E
J
123
4
J351
1
2
3
4
5
6
7
SPEAKER
SP351
8 OHM
CP401
1
2
3
4
5
21
L503
DEGAUSS COIL
CD2001
1
2
3
4
5
6
7
CP851B
1102345678
9
CP851A
1
10
2
3
4
5
6
7
8
9
S101A
S102A
CP801
1
2
CD352
1
2
CP351_1
CP757_2
G-20G-19
FFC
PG_GND
PG_OUT
SP_COM
H_GND
CUT_OFF
H_GND
CUT_OFF
SP_OUT_L
SOUND_OUT_L
SOUND_GND
FRONT_AUDIO_IN
FRONT_VIDEO_IN
KEY_B
REC_LED
T-REC_LED
REMOCON_IN
KEY_A
INTERCONNECTION DIAGRAM
FB401
FBT
VMA227
SYSCON PCB
PCB010
TEXA28
DEGAUSS COIL
DEGAUSS COIL
FOCUS SCREEN
TCA377
S801
CD801
FOCUS
SCREEN
NC
180V
GND
R.OUT
NC
NC
HEATER
G.OUT
B.OUT
180V
GND
R.OUT
NC
NC
HEATER
G.OUT
B.OUT
CRT PCB
PCB110
F
CRT SOCKET
J801
5
4
3
6
7
8
9
1
GND
GND
V801
H.V
CRT
ANODE
NC
NC
NC
NC
NC
TU601
PACK
TUNER
IF
+30V
+5V
SDA
SCL
AGC U IN
11
10
1
3
5
6
7
8
9
2
4
B+
OS753
V.OUT
GND
VIDEO
FRONT AV JACK
J701_1
AUDIO L
GND
GND
AT+5V
GND
CD757
SP OUT
SOUND GND
PCB030
OPERATION PCB
CD351
TM101
AUDIO PB
AUDIO REC
CTL-
CTL+
AE HEAD(-)
AE HEAD(+)
FE HEAD (HOT)
FE HEAD (GND)
H5002
FULL ERASE HEAD ASS’Y
2
1 FE HEAD (HOT)
FE HEAD (GND)
AE HEAD(+)
AE HEAD(-)
AE
AUDIO
CONTROL
CTL-
CTL+
AUDIO REC
AUDIO PB
H5001
HEAD AUDIO CONTROL ASS’Y
FFC
4
3
2
1
SP-CH2 (L)
SP-CH1 (R)
CH1
HEAD
SP
CH2
LD/CY_VCO
CAP_FG
CYL_CTL
VCC
CYL_FG/PG
LDM_CTL
CAP_CTL
I_LIMIT
CAP/M/F/R
CAP_VCO
UN4001
CYLINDER UNIT ASS’Y
M2003
MICRO MOTOR
GND
M-COM
W-OUT
V-OUT
U-OUT
CP1001
1
2
1
2
LOADING MOTOR
LM
M101
7
6
5
4
3
GND
MOTOR_GND
MR
FG SENSOR
GOVCC
ROTOR MAGNETCOIL
MAIN
SENSOR
HALL
LOGIC
SWITCH
OUT
IN
HALL
VCC
HALL
DECK MECHA ASS’Y
M2001
CAPSTAN DD UNIT
Page 50
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
NOTE:
H-1
WAVEFORMS
Y/C/AUDIO/CCD/HEAD AMP
10 PB
1.0V 5ms/div
13 PB
1.0V 5ms/div
11 PB
0.5V 0.5ms/div
8 POWER ON
1.0V 10µs/div
9 PB
1.0V 10ms/div
6 POWER ON
1.0V 20µs/div
2 POWER ON
100mV 0.1µs/div
1PB
0.5V 20µs/div
7 POWER ON
0.5V 10ms/div
12 PB
1.0V 0.5ms/div
MICON
5 REC
10.0V 5us/div
3 PB 10mV 20us/div
4 PB
0.5V 1ms/div
18 10.0V 5ms/div
DEFLECTION
17 0.5V 5ms/div
Page 51
23 50.0V 20µs/div
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
NOTE:
H-2
WAVEFORMS
CRT
22 50.0V 20 µs/div
21 50.0V 20 µs/div
20 200mV 20 µs/div
19 2.0V 20 µs/div
Page 52
MECHANICAL EXPLODED VIEW
I-1
205
205
205
205
L503
V801
111
J801
PCB110 (CRT PCB)
120
PCB030
(OPERATION PCB)
115
118
113
117
207
206
108
121
101
B
206
SP351
116
122
206
110
207
Page 53
MECHANICAL EXPLODED VIEW
I-2
114
202
202
202
202
106
202
103
204
203
207
119
209
204
204
107
109
104
104
112
112
211
210
211
210
FB401
PCB800 (SYSCON PCB)
105
201
201
208
102
209
Page 54
L-2
CHASSIS EXPLODED VIEW (TOP VIEW)
312
315
UN4001
M2003
502
504
H5001
503
306
305
332
507
335
342
322
508
324
348
506
304
M101
501
H5002
323
508
341
331
334
333
314
302
301
313
307
300
317
309
336
346
345
321
319
320
AB
316
318
325
347
AA
AB
AB
AB
AA
AA
AA
AA
AA
AB
AB
AB
AB
AB
AB
AB
AB
Applying positions AA and AB for the grease are displayed for this section. Check if the correct grease is applied for each position.
NOTE:
PART NO.
CLASS
MARK
GREASE G-555G
AA
MG-33
AB
Page 55
L-3
CHASSIS EXPLODED VIEW (BOTTOM VIEW)
300
303
M2001
339
510
329
311
310
330
505
510
338
510
337
340
509
308
344
327
343
326
328
AA
AA
AB
AB
AB
AA
AA
AA
AA
AA
AA
AA
AA
AA
Applying positions AA and AB for the grease are displayed for this section. Check if the correct grease is applied for each position.
NOTE:
PART NO.
CLASS
MARK
GREASE G-555G
AA
MG-33
AB
Page 56
MECHANICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION
101 A5A304C720 CABINET,FRONT ASS'Y 102 85OP700037 HOLDER,LED 103 752WSA0230 SHIELD,CASE HEAD AMP 104 753WSA0118 PLATE,EARTH-SYSCON 105 899HV3T000 HOLDER,ANODE WIRE 106 702WPA0832 CABINET,BACK 107 761WPA0225 HOLDER,DECK 108 735WPAA267 BUTTON,REC 109 753WUAA006 SPRING,EARTH HEAD AMP
110 726000A023 SHEET,CRT SERVICEMAN 111 741WUA0019 SPRING,EARTH 112 85OP700038 HOLDER,END SENSOR 113 701WPJB487 CABINET,FRONT 114 722A08A095 SHEET,RATING 115 711WPA0114 PLATE,FRONT 116 712WPJB238 FLAP 117 713WPA0075 GUIDE,REMOCON 118 7230006830 SHEET,LED 119 752WSAA040 PLATE,DECK SHIELD
120 723000A824 FILM,DECORATION 121 735WPJA514 BUTTON,FRAME 122 743WKA0032 SPRING,FLAP (COMBO)
201 8117540B04 SCREW,TAPPING (B0) TRUSS 4x20 202 8117540A64 SCREW,TAPPING (B0) TRUSS 4x16 203 8107630604 SCREW,TAP TITE (S) BRAZIER 3x6 204 8110630A24 SCREW,TAP TITE (P) BRAZIER 3x12 205 8121J50B54 SCREW,TAPPING (B0) GW20 5x28 206 8110630A04 SCREW,TAP TITE (P) BRAZIER 3x10 207 8110630804 SCREW,TAP TITE (P) BRAZIER 3x8 208 8109I30804 SCREW,TAP TITE (B) WH7 3x8 209 8110330804 SCREW,TAP TITE (P) FLAT 3x8
210 8109630802 SCREW,TAP TITE (B) BRAZIER 3x8 211 8109I30A04 SCREW,TAP TITE (B) WH7 3x10
--- JA5K0200 POLYBAG
--- J5A30401 INSTRUCTION BOOK
--- J5780102 WARRANTY SHEET
--- 791WHAA016 LAMIFILM BAG
--- A5A304A975 INSTRUCTION BOOK KIT
--- 792WHA0271 PACKAGE,TOP
--- 792WHA0272 PACKAGE,BOTTOM
--- 793WCDB088 GIFT BOX
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Page 57
CHASSIS REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
300 A5A305A420KDECK ASS'Y A5A305A420K 501 8107226804 SCREW,TAP TITE(S) BIND 2.6x8
502 810A123504 SEMS A M2.3x5.0 301 85OA400227 PINCH ROLLER BLOCK 503 8107226404 SCREW,TAP TITE(S) BIND 2.6x4 302 85OA500026 AHC ASS'Y 504 8102120604 SCREW,PAN M2x6 303 85OP200290 BELT,CAPSTAN (S) 505 8109126604 SCREW,TAP TITE(B) PAN 2.6x6 304 85OP600581 WORM 506 810A130404 SCREW/WASHER(A) M3x4 305 85OP500083 BASE,AC HEAD 507 810A126504 SCREW/WASHER(A) M2.6x5 306 85OP800324 SPRING,AC HEAD 508 82Q264713N POLYSLIDER WASHER 2.6x4.7xT0.13 307 85OA000459 MAIN CHASSIS ASS'Y 509 82P184505N POLYSLIDER WASHER(CUT) 1.8x4.5xT0.5 308 85OA200089 CLUTCH ASS'Y 309 85OA200090 ARM IDLER ASS'Y 510 83ETW30000E-RING 3.0
310 85OA300065 LOADING ARM S UNIT CD1501 122H071603 CORD JUMPER SMCD-7X151 311 85OA300066 LOADING ARM T UNIT CD1502 122Y021902 CORD JUMPER 2Y021902 312 85OA400223 INCLINED BASE T UINT 3S H5001 1523D91034 HEAD (AUDIO CONTROL) HVMXA1072A 313 85OA400226 P5 ARM ASS'Y H5002 1543D02013 HEAD (FULL ERASE) HVFHP0032A 314 85OA400233 TENSION ARM ASS'Y (WT) !M101 1596P98001 MOTOR (LOADING) MXN13FB12K3 315 85OA400231 INCLINED BASE S UNIT !M2001 1510S98036 CAPSTAN DD UNIT F2QVB08 316 85OP800358 SPRING,LOCKER !M2003 1589S11014 MICRO MOTOR I2OAL03 317 85OP900736 CASS,HOLDER !UN4001 A5A305A500 CYLINDER UNIT ASS'Y A5A305A500 318 85OP900748 CASS,SIDE L 319 85OP900749 CASS,SIDE R
320 85OP900739 LOCKER,R 321 85OA900228 LINK UNIT 322 85OP000496 POST,CASS GUIDE 323 85OP200291 REEL,S (S) 324 85OP200292 REEL,T (S) 325 85OP200308 GEAR,IDLER 326 85OP200311 GEAR,CLUTCH 327 85OP200312 GEAR,COUPLING 328 85OP200313 LEVER,CLUTCH 329 85OP300194 GEAR,MAIN LOADING
330 85OP400490 LEVER,TENSION 331 85OP400492 HOLDER,TENSION 332 85OP400520 CAP.P4 333 85OP400532 BAND,TENSION 334 85OP400533 CONNECT,TENSION 335 85OP600573 ARM,BRAKE T 336 85OP600574 BAND,BRAKE T 337 85OP600577 CAM,PINCH ROLLER 338 85OP600578 CAM,MAIN 339 85OP600579 ROD,MAIN
340 85OP600582 GEAR,JOINT 341 85OP800322 SPRING,TENSION 342 85OP800350 SPRING,BRAKE T 343 85OP800355 SPRING,COUPLING 344 85OP800356 SPRING,RING 345 85OP900743 LEVER,LINK 346 85OP900744 LEVER,FLAP 347 85OP900745 CASS,OPENER 348 85OP900746 BRACKET,TOP 3V
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Page 58
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
RESISTORS DIODES
! R415 R002T22R2J RC 2.2 OHM 1/2W D536 D28TELS6N6 DIODE RECTIFER 10ELS6N-TA1B2 ! R420 R801R7822F RC 8.2K OHM 1/10W D537 D1VT001330 DIODE,SILICON 1SS133T-77 ! R439 R801R7223F RC 22K OHM 1/10W D601 D1VT001330 DIODE,SILICON 1SS133T-77 ! R442 R801R7153F RC 15K OHM 1/10W D602 D97U08R21B DIODE,ZENER MTZJ8.2B T-77 ! R444 R801R7183F RC 18K OHM 1/10W D605 D2WT11ES10 DIODE SILICON 11ES1-EIC ! R447 R65582680J R,FUSE 68 OHM 1/2W D608 D2WXSB1400 DIODE SCHOTTKY SB140-EIC
R449 R63502010J R,FUSE 1 OHM 1/2W or D609 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
R655U2010J R,FUSE 1 OHM 1/2W D610 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
! R450 R655812R7J R,FUSE 2.7 OHM 1W D611 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
R451 R655812R7J R,FUSE 2.7 OHM 1W D612 D1VT001330 DIODE,SILICON 1SS133T-77 ! R500 R0G3K2275K RC 2.7M OHM 1/2W D613 D1VT001330 DIODE,SILICON 1SS133T-77 ! R501 R5Y2CD2R2J R,CEMENT 2.2 OHM 5W D614 D1VT001330 DIODE,SILICON 1SS133T-77 ! R502 R3X28B100J R,METAL OXIDE 10 OHM 3W D615 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 ! R510 R903N8105J RC 1M OHM 1/8W D619 D1VT001330 DIODE,SILICON 1SS133T-77 ! R512 R002T2563J RC 56K OHM 1/2W D620 D1VT001330 DIODE,SILICON 1SS133T-77
R514 R3X181R33J R,METAL OXIDE 0.33 OHM 1W D621 D1VT001330 DIODE,SILICON 1SS133T-77 ! R517 R3X181331J R,METAL OXIDE 330 OHM 1W D791 0021E2Q150 LED LTL-4224-031A ! R528 R63581R22J R,FUSE 0.22 OHM 1W D793 0021E2Q150 LED LTL-4224-031A ! R802 R3X181123J R,METAL OXIDE 12K OHM 1W D1001 D1VT001330 DIODE,SILICON 1SS133T-77 ! R805 R3X181123J R,METAL OXIDE 12K OHM 1W D1003 0010100320 INFRARED LED LNA2702L010R ! R810 R3X181123J R,METAL OXIDE 12K OHM 1W D4003 D1VT001330 DIODE,SILICON 1SS133T-77
CAPACITORS ICS
C354 E02L02222M CE 2200 UF 16V ! IC351 I01DP75110 IC AN7511 ! C402 E02L04102M CE 1000 UF 35V ! IC401 I01TD55220 IC AN5522 ! C407 E02L03102M CE 1000 UF 25V IC501 I1KA98R050 IC KIA78R05PI
C423 P4J7F3474J CMPP 0.47 UF 250V PMS ! IC502 0002500450 PHOTO COUPLER TLP621(GR) ! C424 P4N8FJ912H CMPP 0.0091UF 1.25KV IC601 I06FC61206 IC M61206FP ! C431 E02LTD2R2M CE 2.2 UF 250V IC1001 I56F57071A IC OEC7071A ! C433 E02LT3331M CE 330 UF 25V ! IC1003 IC7J0311A0 IC R3111N311A/C-TR
C451 P61101224J CMPL 0.22 UF 100V TF or IC1099 A5A304C015 IC S-24C04BDP-LA
P611T1224J CMPL 0.22 UF 100V TF IC4001 I03F301MN0 IC LA71201M-N-MPB
! C506 P2472B224M CMP 0.22UF 275V PHE840
TRANSISTORS
! C507 C0JTB0513K CC 0.001 UF 500V B Q403 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK
C509 E51CGC471M CE 470 UF 200V Q404 TPAAD05003 COMPOUND TRANSISTOR KRA104SRTK ! C511 E02LT3471M CE 470 UF 25V ! Q405 TC5T01627Y TRANSISTOR SILICON 2SC1627_Y(TPE2)
C517 C03L0R7H3K CC 0.0022UF 2KV R ! Q406 TD30026270 TRANSISTOR SILICON 2SD2627LS-CBC11 ! C521 E62NFC221M CE 220 UF 200V Q407 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S ! C530 CB3930MQ2K CC 470 PF 250V Q505 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
C535 C03L0R713K CC 0.001 UF 2KV R Q507 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) ! C539 CB3930ML3M CC 0.0033UF 250V ! Q510 TJXG5NC500 FET STP5NC50FP
C541 C03L0R7W2K CC 820 PF 2KV R ! Q511 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
C801 C0PWB07H3K CC 0.0022UF 2KV B Q601 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
DIODES
Q602 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
D401 D2WT011E10 DIODE SILICON 11E1-EIC Q603 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT ! D402 D2WXN49370 DIODE SILICON 1N4937 Q604 TDWT00400E TRANSISTOR SILICON 2SD400E
D403 D97U03001B DIODE,ZENER MTZJ30B T-77 or Q605 TDWT00400E TRANSISTOR SILICON 2SD400E
D97U03301C DIODE,ZENER MTZJ33C T-77 Q606 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
D404 D97U03001B DIODE,ZENER MTZJ30B T-77 or Q608 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK
D97U03301C DIODE,ZENER MTZJ33C T-77 Q609 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK D405 D2WT011E10 DIODE SILICON 11E1-EIC Q611 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK D407 D1VT001330 DIODE,SILICON 1SS133T-77 Q612 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK
! D408 D94TA27011 DIODE ZENER HZ27-1L TD ! Q804 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC ! D409 D94TA11B13 DIODE ZENER HZ11B3L TD ! Q805 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC
D410 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 ! Q806 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC D411 D1VT001330 DIODE,SILICON 1SS133T-77 Q1003 0002700530 PHOTO COUPLER RPI-352Q01R
! D412 D2WXN49370 DIODE SILICON 1N4937 Q1004 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK ! D413 D2WXN49370 DIODE SILICON 1N4937 ! Q1005 0002700590 PHOTO COUPLER RPI-301 ! D501 D97U01001B DIODE,ZENER MTZJ10B T-77 Q1007 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK ! D505 D2WXB290S0 DIODE SILICON SB290S Q1008 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK
D507 D2WXB290S0 DIODE SILICON SB290S Q1009 0002700530 PHOTO COUPLER RPI-352Q01R D508 D1VT001330 DIODE,SILICON 1SS133T-77 Q1011 0000M00390 PHOTO TRANSISTOR ST-304L
! D510 D2WXRU2AM0 DIODE SILICON RU2AM-EIC Q1013 0000M00390 PHOTO TRANSISTOR ST-304L ! D512 D2WXB290S0 DIODE SILICON SB290S Q1023 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D513 D1VT001330 DIODE,SILICON 1SS133T-77 Q1024 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK D514 D1VT001330 DIODE,SILICON 1SS133T-77 Q4001 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
! D515 D97U03301B DIODE,ZENER MTZJ33B T-77 or Q4002 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
D97X03301B DIODE,ZENER MTZJ-33B-T72 Q4003 TPAAC05002 COMPOUND TRANSISTOR KRA103SRTK
! D517 D28TELS2N2 DIODE RECTIFER 10ELS2N-TA1B2 Q4005 TAATA12660 TRANSISTOR,SILICON KTA1266-AT(Y,GR)
D518 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4006 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
! D519 D2WXB290S0 DIODE SILICON SB290S Q4007 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D520 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4009 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S D521 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4010 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S D528 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 Q4011 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S D530 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4012 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S D533 D1VT001330 DIODE,SILICON 1SS133T-77
COILS &TRANSFORMERS
! D534 D97U01801B DIODE,ZENER MTZJ18B T-77 L401 021679472K COIL 4.7 MH ! D535 D97U01801B DIODE,ZENER MTZJ18B T-77 ! L502 029T000092 COIL,LINE FILTER 1R0A103F24
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Page 59
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
COILS &TRANSFORMERS MISCELLANEOUS
!L503 028R140031COIL,DEGAUSS 8R140031 !FB401 043213015RTRANSFORMER,FLYBACK 3213015R
L601 0331920018 COIL 3192001 FH501 06710T0006HOLDER,FUSE EYF-52BC L603 02167F470J COIL 47 UH FH502 06710T0006HOLDER,FUSE EYF-52BC L607 021LA6220KCOIL 22 UH FH503 06710T0006HOLDER,FUSE EYF-52BC L612 021LA66R8KCOIL 6.8 UH FH504 06710T0006HOLDER,FUSE EYF-52BC L801 021673221K COIL 220 UH OS753 077Q037002REMOTE RECEIVER PIC-37143TH5 L1001 021LA62R2KCOIL 2.2 UH !SP351 070W535002SPEAKER NF-16D27W L1003 02167H220KCOIL 22 UH !TH501 DF5EL3R0A0DEGAUSS ELEMENT ZPB45BL3R0A L4001 02167F220J COIL 22 UH TM101 076R0CG010TRANSMITTER R25-1195 or L4003 02167F101J COIL 100 UH 076N0CG010TRANSMITTER RC-CG010 L4005 02167F470J COIL 47 UH !TU601 0145K00055TUNER,VHF-UHF TECC1040PG32D L4006 02167F470J COIL 47 UH !V801 098Y1404B9CRT W/DY A34JXV70X53N45 L4009 02167F101J COIL 100 UH X602 100CT3R505CRYSTAL HC-49/C 3.579545MHz T401 045009003J TRANS,HORIZONTAL DRIVEETH09K14BZ X1001 100CT01207CRYSTAL HC-49/U-S 12MHz
!T501 0481290804 TRANSFORMER,SWITCHING81290804 X1002 100DA32R01CRYSTAL DT-26 32.768KHz
T4001 031626009RCOIL,BIAS OSC 1626009 X4001 100CT3R502CRYSTAL HC-49/U 3.579545MHz
JACKS
!J351 060G131014RCA JACK HTJ-035-28A RESISTOR
J701 060Q401075RCA JACK AV2-24D-5 RC...................CARBON RESISTOR
!J801 066X120014 SOCKET,CRT HPS3200-010501
SWITCHES
CAPACITORS
SW751 0504101T34 SWITCH,TACT EVQ21505R CC...................CERAMIC CAPACITOR
SW791 0504101T34 SWITCH,TACT EVQ21505R CE...................ALUMI ELECTROLYTIC CAPACITOR
SW792 0504101T34 SWITCH,TACT EVQ21505R CP...................POLYESTER CAPACITOR
SW793 0504101T34 SWITCH,TACT EVQ21505R CPP..................POLYPROPYLENE CAPACITOR
SW794 0504101T34 SWITCH,TACT EVQ21505R CPL..................PLASTIC CAPACITOR
SW795 0504101T34 SWITCH,TACT EVQ21505R CMP.................METAL POLYESTER CAPACITOR
SW796 0504101T34 SWITCH,TACT EVQ21505R CMPL...............METAL PLASTIC CAPACITOR
SW797 0504101T34 SWITCH,TACT EVQ21505R CMPP...............METAL POLYPROPYLENE CAPACITOR
SW798 0504101T34 SWITCH,TACT EVQ21505R SW799 0504101T34 SWITCH,TACT EVQ21505R SW1001 0508A11002 SWITCH(LEAF) MXS01380MPP0
VARIABLE RESISTORS
VR401 V1263H3BT7VOLUME,SEMI FIXED RH0683CJ3R VR502 V1163L2BTCVOLUME,SEMI FIXED EVNCYAA03BY2
P.C.BOARD ASSEMBLIES
PCB010 A5A304C010PCB ASS'Y VMA227A PCB030 A5A304C030PCB ASS'Y TEXA28A PCB110 A5A304C110PCB ASS'Y TCA377A
MISCELLANEOUS
ANT001 125C108027ANTENNA ROD T4-216BNK-BK B402 024HT03553CORE,BEADS W5RH3.5X5X1.0 B403 024HT03553CORE,BEADS W5RH3.5X5X1.0 B501 024A8407C3CORE,BEADS BL02RN2-R62T2 B503 024HT03553CORE,BEADS W5RH3.5X5X1.0 B602 024HT03553CORE,BEADS W5RH3.5X5X1.0 B604 024HT03564CORE,BEADS W4BRH3.5X6X1 CD351 06CH27090ACORD CONNECTOR CH27090A CD352 06CH12435ACORD CONNECTOR CH12435A
!CD501 120R414903CORD AC BUSH 0R414903
CD757 06CH2A019ACORD CONNECTOR CH2A019A CD801 06CU82039ACORD CONNECTOR SM1098-009-1A CD803 06CH012101CORD CONNECTOR CH012101 CD851 WHL6032038FLAT CABLE AWG26 10C BLACK 320MM CD852 06CH01408ACORD EIS CONNECTOR CH01408A CF601 1022T45R72FILTER,SAW SAF45MFY220ZR CF603 1011T4R504FILTER,CERAMIC EFCT4R5YS5A CF604 1011T4R517FILTER,CERAMIC EFCT4R5MW5 CP351 0694260139 CONNECTOR PCB SIDE 173979-6 CP353 0694270139 CONNECTOR PCB SIDE 173979-7
!CP401 069S450089 CONNECTOR PCB SIDE A1561WV2-A5P !CP502 069S420110 CONNECTOR PCB SIDE A1561WV2-2P
CP504 069W01001ACONNECTOR PCB SIDE 003P-2100 CP505 069W01001ACONNECTOR PCB SIDE 003P-2100 CP757 06942A0139 CONNECTOR PCB SIDE 1-173979-0 CP801 069S320010 CONNECTOR PCB SIDE A2361WV2-2P CD4001 122L061501 CORD JUMPER 2L061501 CP1001 06972C0010CONNECTOR PCB SIDE TMC-J12P-B2 CP1003 0694240139 CONNECTOR PCB SIDE 173979-4 CP4001 0697240600 CONNECTOR PCB SIDE TOC-C04X-B1 CP4002 069J760029 CONNECTOR PCB SIDE IMSA-9604S-06Z14 CP4003 0697120320 CONNECTOR PCB SIDE TMC-T02X-E1 CP851A 067U010049WIRE HOLDER B2013H02-10P CP851B 067U010049WIRE HOLDER B2013H02-10P CUS012 800WFAA008CUSHION C
!F501 081PC05004FUSE 51MS050LCC !F502 081PC2R504FUSE 51MS025LCC
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Page 60
M5A3-04C
K1X5006
SPEC.NO.
O/R NO.
Page 61
SERVICE MANUAL
Design and specifications are subject to change without notice.
MVT2135B Series E
COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
MFR’S VERSION C
Page 62
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 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.
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.
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.
A1-1
Page 63
CONTENTS
SERVICING NOTICES ON CHECKING ..................................................................................
HOW TO ORDER PARTS .......................................................................................................
CONTENTS .................................................................................................................................
GENERAL SPECIFICATIONS....................................................................................................
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ............................................
2. REMOVAL OF DECK PARTS ............................................................................................
3. REMOVAL OF ANODE CAP ..............................................................................................
4. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC .................................................
KEY TO ABBREVIATIONS .....................................................................................................
SERVICE MODE LIST ............................................................................................................
PREVENTIVE CHECKS AND SERVICE INTERVALS ............................................................
WHEN REPLACING EEPROM (MEMORY) IC .....................................................................
SERVICING FIXTURES AND TOOLS .....................................................................................
PREPARATION FOR SERVICING .........................................................................................
MECHANICAL ADJUSTMENTS .............................................................................................
ELECTRICAL ADJUSTMENTS ...............................................................................................
BLOCK DIAGRAMS
TV ............................................................................................................................................
Y/C/AUDIO/CCD/HEAD AMP .................................................................................................
MICON/OPERATION/IN/OUT ................................................................................................
PRINTED CIRCUIT BOARDS
OPERATION............................................................................................................................
SYSCON/CRT .........................................................................................................................
SCHEMATIC DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP .................................................................................................
MICON .....................................................................................................................................
IN/OUT ......................................................................................................................... ............
CHROMA/IF.............................................................................................................................
SOUND AMP ...........................................................................................................................
POWER ...................................................................................................................................
DEFLECTION ..........................................................................................................................
CRT..........................................................................................................................................
OPERATION ...........................................................................................................................
INTERCONNECTION DIAGRAM............................................................................................
WAVEFORMS .............................................................................................................................
MECHANICAL EXPLODED VIEWS...........................................................................................
CHASSIS EXPLODED VIEWS ...................................................................................................
MECHANICAL REPLACEMENT PARTS LIST .........................................................................
CHASSIS REPLACEMENT PARTS LIST..................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ........................................................................
A1-1 A1-1 A2-1 A3-1~A3-4
B1-1 B2-1~B2-6 B3-1 B4-1, B4-2 C1-1, C1-2 C2-1 C3-1, C3-2 C4-1 D1-1 D1-1 D2-1~D2-4 D3-1~D3-5
E-1, E-2 E-3, E-4 E-5, E-6
F-1, F-2 F-3~F-6
G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 G-15, G-16 G-17, G-18 G-19, G-20 H-1, H-2 I1-1, I1-2 I2-1, I2-2 J1-1 J2-1 J3-1, J3-2
A2-1
Page 64
GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 13 inch / 335.4 mmV
System CRT Type Normal
Deflection 90 degree
Magnetic Field BV/BH +0.45G / +0.18G Color System NTSC Speaker 1Speaker
Position Front
Size 1.5 x 2.5 Inch
Impedance 8 ohm Sound Output MAX 1.5 W
10%(Typical) 1.0 W
G-2 VCR System VHS Player / Recorder
System Video System NTSC
Hi-Fi STEREO No NTSC PB ­Deck DECK OVD-7
Loading System Front
Motor 3 Heads Video Head 2Head
FM Audio Head No
Audio /Control Mono /Yes
Erase(Full Track Erase) Yes Tape Rec PAL ­Speed NTSC SP/SLP
Play PAL -
NTSC SP/LP/SLP
Fast Forward / Rewind Time (Approx.) FF:4'50"/REW:2'30"
with Cassette T-120 Forward/Reverse NTSC or PAL-M SP/LP/SLP=3x,5x/7x,9x/9x,15x Picture Search Frame Advance ­Slow Speed -
G-3 Tuning Broadcasting System US System M
System Tuner and System 1Tuner
Receive CH Destination US(w/CATV)
Tuning System F-Synth Input Impedance VHF/UHF 75 ohm
CH Coverage
2~69, 4A,A-5~A-1, A~I,
J~W
,
W+1~W+84
Intermediate Picture(FP) 45.75 MHz Frequency Sound(FS) 41.25 MHz
FP-FS 4.5 MHz
Preset CH
No
Stereo/Dual TV Sound
No
Tuner Sound Muting Yes
G-4 Signal Video Signal Input Level 1 V p-p/75 ohm
Output Level ­S/N Ratio (Weighted) 50dB Horizontal Resolution at SP Mode 220Lines
Audio Signal
Input Level
-8dBm/50Kohm
Output Level
-
S/N Ratio at SP (Weighted) 38dB
Harmonic Distortion at SP (1KHz) Typical
1.5 %
Frequency Response at SP 100Hz - 10kHz
at LP 100Hz - 6kHz
at SLP 100Hz - 4kHz
Hi-Fi Audio Signal Dynamic Range : More than - dB
Wow And Flutter : Less than - %Wrms Channel Separation : More than - dB Harmonic Distortion : Less than - %
G-5 Power Power Source AC 120V,60Hz
DC -
Power Consumption at AC 65 W at 120V 60Hz
at DC ­Stand by (at AC) 5 W at 120V 60Hz Per Year -
Protector Power Fuse Yes
Dew Sensor
No
G-6 Regulation Safety UL
Radiation FCC X-Radiation DHHS
G-7 Temperature Operation
+
5oC
~ +4
0oC
Storage
-2
0oC
~ +
60oC
G-8 Operating Humidity Less then 80% RH G-9 On Screen Menu Yes
Display Menu Type Charactor
A3-1
Page 65
GENERAL SPECIFICATIONS
Timer Rec Set Yes Channel Setup Yes
TV/CATV Yes Auto CH Memory Yes Add/ Delete Yes Guide CH Set
No
TV Setup Yes
V-chip Set Yes On/Off Timer Set Yes Picture Yes Audio
No
Sap On/Off
No Auto Repeat On/Off Yes System Setup Yes
Clock Set Yes Language Yes Auto Clock On/Off Yes Standard Time Yes Daylight Saving Time Yes
Commercial Advance
No
Marking On/Off
No
Blueback On/Off
No
Playback Auto/Manual
No
Unmarked Tape
No Movie Advance
No
Go To Movie
No
Go To Preview
No
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
No
Clock / Date Yes CH/AV Yes Tape Counter(Linear Counter) Yes Tape Speed Yes Sleep Time Yes Stereo/Audio Output
No
Bilingal
No
SAP
No
Control Volume Yes Level Bright / Contrast / Sharpness / Color Yes
Tint Yes Bass/Treble/Balance
No Manual Tracking Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark)
Yes
Auto Tracking/Manual Tracking Yes Caption / Text Yes Index
No
Muting Yes Hi-Fi
No
Repeat Yes Zero Return
No
DEW
No
G-10 OSD Language English French Spanish
OSD Language Setting English
G-11 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31
and Timer Timer Events 8 Program/ 1 Month Back-up One Touch Recording Max Time 5 Hours
OTPB Valid Time
No
Sleep Timer Max Time 120
Min
Step 10
Min
On/Off Timer Program(On Timer / Off Timer) 1
Program
Auto Shut Off No Signal 15
Min
No Operation -
Timer Back-up (at Power Off Mode) 5
Sec
G-12 Remote Unit RC-CG
Control Glow in Dark Remocon Yes
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 41
Keys
Keys Power Yes
1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes
A3-2
Page 66
GENERAL SPECIFICATIONS
0 Yes CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes Input Select Yes Play Yes F.Fwd Yes Rew Yes Pause/Still Yes Stop Yes Rec/OTR Yes Eject Yes Counter Reset Yes Speed Yes Timer Rec Yes TV Monitor Yes Quick View Yes Program Yes Slow
No
Auto Tracking Yes Set/Tracking+ Yes Set/Tracking - Yes Menu Yes Enter Yes Cancel Yes Call Yes TV/Caption/Text Yes Sleep Timer Yes Muting Yes Zero Return Yes CM Skip Yes Audio Select
No
G-13 Features Auto Head Cleaning Yes
Auto Tracking Yes HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes VIDEO PLUS+(SHOWVIEW,G-CODE)
No
Auto Clock Yes Forward / Reverse Picture Search Yes Reverse Slow
No
One Touch Playback
No
Auto CH Memory Yes Closed Caption Yes TV Auto Shut off Function Yes End Call
No
Index Search
No
SQPB
No
CATV Yes CM Skip(30sec x 6 Times) Yes Comb Filter
No
TV Monitor Yes Program Extend
No
Choke Coil
No
Energy Star Yes Protect of FBT Leak Curcuit
No
Dirty Head
No
V-chip USA V-chip Yes
CANADA V-chip
No
Zero Return Yes CM Advance
No
Movie Advance
No
G-14 Accessories Owner's Manual Language English/Spanish
w/Guarantee Card
No
Remote Control Unit Yes Battery
No
UM size x pcs -
Rod Antenna Yes
Poles 1 pole Terminal F type w/300 ohm to 75 ohm Antenna Adapter
No
Loop Antenna
No
Terminal -
U/V Mixer
No
300 ohm to 75 ohm Antenna Adapter
No
Antenna Change Plug
No
A3-3
Page 67
GENERAL SPECIFICATIONS
DC Car Cord (Center+)
No
AC Plug Adapter
No
AC Cord
No
AV Cord (2Pin-1Pin)
No
Guarantee Card Yes Registration Card
No
ESP Card
No
Warning Sheet
No
Dew/AHC Caution Sheet
No
Quick Set-up Sheet
No
Circuit Diagram
No
Service Facility List
No
Important Safeguard
No
Informatin Sheet
No
G-15 Interface Switch Power Yes
Play Yes Pause/Still
No
System Select
No
One Touch Playback
No
Channel Up Yes Channel Down Yes F.FWD/Cue Yes Eject/Stop Yes Main Power SW
No
Volume Up Yes Volume Down Yes Rew/Rev Yes Rec/OTR Yes Input Select
No
Indicator Power
No
Rec/OTR Red T-Rec Red On Timer
No
CS
No
Key Light up Rec/OTR
No
One Touch Playback
No
Play
No
Terminals Front Video Input RCA x 1
Audio Input RCA x 1 Other Terminal Head Phone(Stereo & Mono, 3.5mm)
Rear Video Input
No
Audio Input
No
Video Output
No
Audio Output
No
Euro Scart
No
Diversity
No
Ext Speaker W
No
DC Jack 12V(Center +)
No
VHF/UHF Antenna Input
F Type
AC Inlet
No
G-16 Set Size Approx. W x D x H (mm) 362 x 370.5 x 382 G-17 Weight Net (Approx.) 11.0
(24.3 lbs)
Gross (Approx.) 12.5
(27.6 lbs)
G-18 Carton Master Carton
No
Content ­Material ­Dimensions W x D x H(mm) ­Description of Origin -
Gift Box Yes
Material Double/White Dimensions W x D x H(mm) 423 x 447 x 443 Design As per Buyer's Description of Origin Yes
Drop Test Natural Dropping At
1 Corner / 3 Edges / 6 Surfaces
Height (cm) 62
Container Stuffing(40' container) 700
Sets
G-19 Cabinet Material Cabinet Front PS 94V0/DECABROM
Cabinet Rear PS 94V0/DECABROM
A3-4
Page 68
Front Cabinet
CRT PCB
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
2.
3.
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
Fig. 1-3
Remove the 5 screws 1. Remove the AC cord from the AC cord hook 3. Remove the Back Cabinet in the direction of arrow.
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.
2.
3.
4.
Remove the 2 screws 1. Disconnect the following connectors: (CP757, CP351, CP401 and CP502). Unlock the support 2. Remove the TV/VCR Block in the direction of arrow.
Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP) Disconnect the following connectors: (CP801 and CP851B). Remove the CRT PCB in the direction of arrow.
1
1
2
UP TO RELEASE
TV/VCR Block
1-4: DECK CHASSIS AND SYSCON PCB
(Refer to Fig. 1-4)
B1-1
Front Cabinet
Fig. 1-1
Front Cabinet
Back Cabinet
1
1
1
3
1
1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Remove the screw 1. Remove the screw 2. Remove the screw 3. Remove the Deck Shield Plate in direction of arrow (A). Remove the screw 4. Remove the Cover Light Plate in direction of arrow (C). Remove the 3 screws 5. Disconnect the following connectors: CP1001, CP4001, CP4002 and CP4003). Remove the Deck Chassis in the direction of arrow (B). Remove the screw 6. Remove the Syscon PCB in the direction of arrow (C).
1
5
5
3
5
6
Deck Chassis
Deck Shield Plate
(B)
Syscon PCB
Deck Holder
Fig. 1-4
(C)
2
Cover Light Plate
4
(A)
Page 69
DISASSEMBLY INSTRUCTIONS
B2-1
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports 1. Slide the 2 supports 2 and remove the Top Bracket.
1.
2.
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
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.
Fig. 2-1
2
2
Main Chassis
Main Chassis
Top Bracket
Top Bracket
Main Chassis
Main Chassis
Cassette Side L
Cassette Side R
Locker R
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring. Unlock the 4 supports 1 and then remove the Cassette Side L/R. Unlock the support 2 and then remove the Locker R.
1.
2.
3.
Link Ass'y
NOTE
1.2.In case of the Locker R installation, check if the two positions of Fig.2-3-B are correctly locked. When you install the Cassette Side R, be sure to move the Locker R after installing.
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position. Unlock the support 1. Remove the (A) side of the Link Unit first, then remove the (B) side.
1.
2.
3.
Fig. 2-4
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Extend the support 1. Remove the Link Lever. Remove the Flap Lever.
1.
2.
3.
Fig. 2-5
Fig. 2-3-A
Cassette Side L
Cassette Side R
1
1
1
Locker R
1
Cassette Holder
Locker Spring
2
Fig. 2-3-B
Check if these positions are locked.
(A)
Link Unit
Main Chassis
1
Link Unit
(B)
Main Chassis
Cassette Side R
Locker R
1
1
NOTE
1. After the installation of the Top Bracket, bend the support 1 so that the Top Bracket is fixed.
Link Lever
Flap Lever
1
Page 70
DISASSEMBLY INSTRUCTIONS
B2-2
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the Tension Holder hook is set to the position of Fig. 2-7-A to move the Tension Arm Ass'y. Remove the Tension Spring. Unlock the 2 supports 1 and remove the Tension Band. Unlock the support 2 and remove the Tension Arm Ass'y. Unlock the support 3 and remove the Tension Connect. Float the hook 4 and turn it clockwise then remove the Tension Holder.
1.
2.
3.
4.
5.
6.
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 1. Remove the Loading Motor. Remove the Worm.
1.
2.
3.
Fig. 2-6-A
• Screw Torque: 3 ± 0.5kgf•cm
Loading Motor
1
Main Chassis
Worm
NOTE
1.2.In case of the Worm installation, check if the value of the Fig. 2-6-B is correct.
In case of the Loading Motor installation, hook the wire on the Cassette Opener as shown Fig. 2-6-C.
Fig. 2-6-B
19.2 ± 0.1mm
Safety surface for pressing of the insert.
Fig. 2-7-D
Tension Band
NOTE
1.
2.
3.
In case of the Tension Band installation, note the direction of the installation. (Refer to Fig. 2-7-C) In case of the Tension Band installation, install correctly as Fig. 2-7-D. In case of the Tension Connect installation, install as the circled section of Fig. 2-7-E.
Tension Band
Tension Connect
Tension Connect
[OK]
[NG]
Fig. 2-7-E
Tension Connect
Main Chassis
Fig. 2-7-C
Tension Band
Tension Connect
Fig. 2-7-A
Tension Arm Ass'y
Fig. 2-7-B
Tension Spring
1
2
4
Tension Band
Tension Arm Ass'y
3
1
Tension Holder
Tension Connect
Fig. 2-6-C
Loading Motor
Cassette Opener
Page 71
DISASSEMBLY INSTRUCTIONS
B2-3
Fig. 2-9-B
Big Hole (S Reel)
Small Hole (T Reel)
Fig. 2-9-C
Idler Arm Ass'y
[OK]
[NG]
Clutch Gear
Idler Arm Ass'y
Clutch Gear
Fig. 2-8-B
T Brake Band
NOTE
1. In case of the T Brake Band installation, install correctly as Fig. 2-8-B.
T Brake Arm
[OK]
[NG]
T Brake Band
T Brake Arm
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel. Remove the 2 Polyslider Washers 1. Remove the Idler Arm Ass'y and Idler Gear.
1.
2.
3.
NOTE
Take care not to damage the gears of the S Reel and T Reel. 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. (Use gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains on it. When you install the reel, clean the shaft and grease it (FG-84M). (If you do not grease, 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.
Fig. 2-9-A
S Reel
1
(A) T Reel
(A)
1
Idler Arm Ass'y
Idler Gear
NOTE
1.2.In case of the S Reel and T Reel installation, check if the correct parts are installed. (Refer to Fig. 2-9-B)
In case of the Idler Arm Ass'y installation, install correctly as Fig. 2-9-C. And also set it so that the section "B" of Fig. 2-9-A is placed under the Main Chassis tab.
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring. Turn the T Brake Arm clockwise and bend the hook section to remove it. Unlock the 2 supports 1 and remove the T Brake Band.
1.
2.
3.
T Brake Band
Hook section
T Brake Spring
T Brake Arm
1
1
Fig. 2-8-A
(B)
Page 72
DISASSEMBLY INSTRUCTIONS
B2-4
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 1. Remove the FE Head.
1.
2.
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-12
1
2-11: A/C HEAD (Refer to Fig. 2-11-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. 2-11-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.
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass'y.
1.
2.
NOTE
Do not touch the Pinch Roller. (Use gloves.) In case of the Pinch Roller Block and the Pinch Roller Cam installation, install correctly as Fig. 2-10-B.
1.
2.
Fig. 2-10-A
1
Cassette Opener
P5 Arm Ass'y
Pinch Roller Block
Main Chassis
Fig. 2-10-B
Can be seen the hole of the Main Cam.
Can be seen the hole of the Pinch Roller Cam.
P5 Arm Ass'y
Pinch Roller Block
A/C Head
2
2
A/C Head Spring
1
(3)
(1)
2
(2)
A/C Head Base
Fig. 2-11-A
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
2-13: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support 1 and remove the AHC Ass'y. Disconnect the following connector: (CD2001) Remove the 3 screws 2. Remove the Cylinder Unit Ass'y.
1.
2.
3.
4.
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
Fig. 2-13
1.
1
AHC Ass'y
Cylinder Unit Ass'y
2
2
2
• Screw Torque: 3 ± 0.5kgf•cm
(1)
(3)
(2)
Page 73
DISASSEMBLY INSTRUCTIONS
B2-5
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam installation, install them as the circled section of Fig. 2­15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Fig. 2-15-B
2-15:
Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Cam and Joint Gear.
1.
2.
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A)
1
Main Cam
Pinch Roller Cam
Joint Gear
2
1.
Pinch Roller Cam
Main Cam
Marker
2-16: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring 1 and remove the Main Loading Gear. Remove the Main Rod, Tension Lever, Loading Arm S Ass'y and Loading Arm T Ass'y.
1
Main Rod
Main Loading Gear
Tension Lever
Loading Arm T Ass'y
Loading Arm S Ass'y
Fig. 2-16-A
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)
Remove the Capstan Belt. Remove the 3 screws 1. Remove the Capstan DD Unit.
1.
2.
3.
Fig. 2-14-A
• Screw Torque: 4 ± 0.5kgf•cm
Capstan DD Unit
Capstan Belt
1
1
1
In case of the Capstan DD Unit installation, apply the silicon bond (TSE3843-W) on the position Fig. 2-14-B correctly. (If no silicon bond applied, abnormal noise will be heard on the deck operation.)
(Refer to Fig. 2-14-B, C)
NOTE
1.
Fig. 2-14-B
Fig. 2-14-C
Capstan DD Unit
Main Chassis
Applied position of silicon bond
Be careful not to apply the silicon bond to the Pinch Roller.
Silicon Bond
Page 74
DISASSEMBLY INSTRUCTIONS
B2-6
2-18:
Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide Post. Remove the Inclined Base S Unit and Inclined Base T Unit.
1.
2.
3.
Fig. 2-18-A
CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A)
P4 Cap
Cassette Guide Post
1
Inclined Base T Unit
Inclined Base S Unit
NOTE
Do not touch the roller of Guide Roller. In case of the P4 Cap installation, install it with parallel for "A" and "B" of Fig. 2-18-B. In case of the Cassette Guide Post installation, install correctly as the circled section of Fig. 2-18-C.
1.
2.
3.
"A"
[OK]
[NG]
"B"
P4 Cap
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
Cassette Guide Post
Cassette Guide Post
2-17:
Remove the Polyslider Washer 1. Remove the Clutch Ass'y and Ring Spring. Remove the Clutch Lever. Remove the Coupling Gear, Coupling Spring and Clutch Gear.
1.
2.
3.
4.
Fig. 2-17-A
NOTE
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. 2-16-B)
Fig. 2-16-B
Loading Arm T Ass'y
Main Loading Gear
Marker
Marker
Loading Arm S Ass'y
1
Clutch Ass'y
Coupling Gear
Clutch Lever
Ring Spring
Coupling Spring
Clutch Gear
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/ CLUTCH GEAR (Refer to Fig. 2-17-A)
NOTE
In case of the Clutch Ass'y installation, install it with inserting the spring of the Clutch Ass'y into the dent of the Coupling Gear. (Refer to Fig. 2-17-B)
1.
Clutch Ass'y
Fig. 2-17-B
Coupling Gear
Page 75
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.
DISASSEMBLY INSTRUCTIONS
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
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.
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.)
Location of Anode Cap
Fig. 3-3
Fig. 3-4
B3-1
*
*
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
CRT
Support
Fig. 3-5
Page 76
B4-1
Masking Tape (Cotton Tape)
DISASSEMBLY INSTRUCTIONS
4.
REMOVAL
IC
Put the Masking Tape (cotton tape) around the Flat Package IC to protect other parts from any damage.
(Refer to Fig. 4-1.)
1.
Fig. 4-1
NOTE
REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.
NOTE
Masking is carried out on all the parts located within 10 mm distance from IC leads.
Blower type IC desoldering machine
IC
Heat the IC leads using a blower type IC desoldering machine. (Refer to Fig. 4-2.)
2.
Fig. 4-2
NOTE
Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.
When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.)
3.
Blower type IC desoldering machine
IC
Fig. 4-3
Tweezers
Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 4-4.)
5.
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 4-4
IC pattern
Page 77
B4-2
DISASSEMBLY INSTRUCTIONS
Supply soldering from upper position to lower position
IC
Supply the solder from the upper position of IC leads sliding to the lower position of the IC leads.
(Refer to Fig. 4-6.)
2.
Fig. 4-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided Shield Wire. (Refer to Fig. 4-7.)
3.
Fig. 4-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin­tip Soldering Iron. (Refer to Fig. 4-8.)
4.
Fig. 4-8
Thin-tip Soldering Iron
NOTE
When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.
Finally, confirm the soldering status on four sides of the IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.
5.
Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 4-5.)
1.
Fig. 4-5
Solder temporarily
Page 78
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
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
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
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
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
Page 79
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
: : : : : : : : : : : : : : : : : : : : :
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
Page 80
C2-1
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
0
Releasing 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
3
Adjust 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 HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
VOL. (-) MIN
6
VOL. (-) MIN 1
Initialization of the factory. NOTE: Do not use this for the normal servicing.
If you set a factory initialization, the memories are reset such as the clock
setting, the channel setting, the POWER ON total hours, and PLAY/REC
total hours.
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 BOT, EOT and the Reel sensor do not work and the deck can be operated without a cassette tape. Refer to the "PREPARATION FOR SERVICING"
Page 81
C3-1
PREVENTIVE CHECKS AND SERVICE INTERVALS
CONFIRMATION OF HOURS USED
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: If you set a factory initialization, the total hours is reset to "0".
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 5 seconds before Power On.
1.
2.
3.
Set the VOLUME to minimum. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. After the confirmation of using hours, turn off the power.
INIT 00 83
0010 0003
POWER ON PLAY/REC
Initial setting content of MEMORY IC.
POWER ON total hours. PLAY/REC total hours.
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
: Clean : Check it and if necessary, replace it.
Parts Name Audio Control Head
Full Erase Head
(Recorder only)
Cylinder Unit
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
Capstan Shaft
Tape Running Guide Post
T Brake Band
Clutch Ass'y
Idler Arm Ass'y
Time
500
hours
1,000 hours
1,500 hours
2,000 hours
2,500 hours
Notes
Clean those parts in contact with the tape.
Replace when rolling becomes abnormal.
Clean the Head
Clean the rubber, and parts which the rubber touches.
Page 82
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
Clean the Audio Control Head with the cotton stick soaked by alcohol. 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.
Cylinder Head
Audio Control Head
C3-2
PREVENTIVE CHECKS AND SERVICE INTERVALS
Page 83
WHEN REPLACING EEPROM (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 5 seconds before Power On.
C4-1
88 0A 62 63 43 14 34 09 51 38
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+A
+B +C +D +E +FINI
B2 92 93 00 00 00 15 08 00 06 29 01 17 10 60 32 3A DA D7 28 29 2A 2C 2E 30 32 34 36 38 43 45 46 47 48 49 4A 4B 4C
30 66 00 40 00 1000
10
9A
A9 0F 94 3E 06 04 20 10 15 20 25 26 27 30 3A 3C 3E 40 41 42 40 44 4D 4E 4F 50 51 52
53 55 56 57 58 59 5A 5B 5C 63 64 66 69 6D 74 79 7C 7E 7F
50
54
5D 5E 5F 60 61 62
60 --- --- --- --- --- ---
3.
4.
5.
6.
7.
8. The unit will now have the correct DATA for the new MEMORY IC.
Table 1
1.
2.
Fig. 1
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. Press ENTER to select DATA. When DATA is selected, it will "blink". Again, step through the DATA using PLAY or STOP until required DATA value has been selected. Pressing ENTER will take you back to ADDRESS for further selection if necessary. Repeat steps 3 to 6 until all data has been checked. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
Enter DATA SET mode by setting VOLUME to minimum. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. ADDRESS and DATA should appear as FIG 1.
INIT 00 83
0010 0003
POWER ON PLAY/REC
ADDRESS DATA
Page 84
(For 2 heads model)
VHS Alignment Tape JG001 JG001A JG001Q JG001T
SERVICING FIXTURES AND TOOLS
JG100A Torque Tape
(VHT-063)
JG024AJG022 Master PlaneJG153 X Value Adjustment
Screwdriver
JG005 Post Adjustment
Screwdriver Part No. SV-TG0-030-000 (small)
JG002B JG002E
JG002F
Adapter Dial Torque Gauge (10~90gf•cm) (60~600gf•cm)
(For 4 heads model)
VHS Alignment Tape JG001B JG001I JG001P JG001S
(VN S-LI6 ) (VN S-CO1 ) (VN S-LI6 H) (VN S-X6 )
2
3
2
3
2
3
2
3
(VN S-LI6 ) (VN S-CO1 ) (VN S-LI6 H) (VN S-X6 )
1
3
1
3
1
3
1
3
Reel Disk Height Adjustment Jig
D1-1
JG154 Cable
Tentelometer
Remarks
Part No.
APJG001000
Ref. No.
JG001Q
JG001T JG001B
JG001I JG001P JG001S JG002B JG002E JG002F
JG005 JG153
JG001
JG001A
APJG022000
APJG001A00
APJG001Q00
JG100A
JG154
JG024A
JG022
VHS Alignment Tape (For 2 heads model)
APJG001T00 APJG001B00
APJG001I00 APJG001P00 APJG001S00 APJG002B00 APJG002E00 APJG002F00 APJG005000 APJG153000
APJG024A00 APJG100A00 APJG154000
Parts Name
VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) Adapter Dial Torque Gauge (10~90gf•cm) Dial Torque Gauge (60~600gf•cm) Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Adjustment Jig Torque Tape (VHT-063) Cable
Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment VSR Torque, Brake Torque (S Reel/T Reel Ass'y) Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) Guide Roller Adjustment X Value Adjustment Reel Disk Height Adjustment Reel Disk Height Adjustment Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND
PREPARATION FOR SERVICING
How to use the Servicing Fixture
1.
2.
3.
4.
Unplug the connector CP757 and CP351, then remove the TV/VCR Block from the set. Remove the Operation PCB from the set, then connect it with the Syscon PCB. If necessary, connect CP351. (Front A/V Jack Input Terminal) Short circuit between TP1001 and Ground with the cable JG154.
(The BOT, EOT and the Reel Sensor do not work and the deck can be operated without a cassette tape.) In case of using a cassette tape, press the STOP/EJECT button to insert or eject a cassette tape. Turn on the power and re-check the cable before checking the trouble points.
Page 85
D2-1
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.)
CONFIRMATION AND ADJUSTMENT OF REEL DISK HEIGHT
1-1:
1.
2.
3.
4.
Turn on the power and set to the STOP mode. 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. While turning the reel and confirm the following points. Check if the surface "A" of reel disk is lower than the surface "B" of reel disk height adjustment jig (JG024A) and is higher than the surface "C". If it is not passed, place the height adjustment washers and adjust to 10(+2, -0)mm. Adjust the other reel in the same way.
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 mode. Set the unit to the PLAY mode. Install the tentelometer as shown in Fig. 1-3. Confirm that the meter indicates 20 ± 2gf in the beginning of playback.
1.
2.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
2.
3.
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. Confirm that the right meter of the torque tape indicates 50~90gf•cm during playback in SP mode. Confirm that the left meter of the torque tape indicates 25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
Guide Roller
P1 Post
Fig. 1-3
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
2.
3.
Set to the PLAY mode. Adjust the adjusting section for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis. While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Fig. 1-2-A
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Reel Disk Height Adjustment Jig (JG024A)
Fig. 1-1-A
Reel Disk
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
(B)
(C)
Master Plane (JG022)
Fig. 1-1-B
(A)
10(+0.2, -0)mm
Master Plane (JG022)
Reel Disk Height Adjustment Jig (JG024A)
Adjusting section for the Tension Arm position
Bend
Tension Band
The Tension Arm top will move to the outside direction of the Main Chassis.
The Tension Arm top will move to the inside direction of the Main Chassis.
Page 86
S Reel/Tension Band/Tension Connect/Tension Arm Ass'y T Reel/T Brake Band//T Brake Spring/T Brake Arm
D2-2
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
1.
2.
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
S Reel side: T Reel side:
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). (Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001 (Envelope) and CH-2 to TP1002 (SW Pulse). Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Trigger with SW Pulse and observe the envelope. (Refer
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting 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 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.
(Refer to the ELECTRICAL ADJUSTMENTS)
1.
2.
3.
4.
5.
6.
7.
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
CH-2 SW Pulse (TP1002)
CH-1 Track
CH-2 Track
CH-1 Envelope (TP4001)
Fig. 2-1-A
Entrance Exit
Max
A : B 3 : 2
A
Max
B
Fig. 2-1-B
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-B)
Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the S Reel. Install the Torque Gauge (JG002F) and Adapter
(JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
1.
2.
3.
4. (T Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the T Reel. Install the Torque Gauge (JG002E) and Adapter
(JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
1.
2.
3.
4.
Torque Gauge/Adapter (JG002F/JG002B)
T Reel
S Reel
Torque Gauge/Adapter (JG002E/JG002B)
Fig. 1-4-A
The position at FF mode.
The position at STOP mode.
Cassette Opener
Pinch Roller Block
Capstan DD Unit
Cassette Holder Ass'y
Stop at this position.
Fig. 1-4-B
Page 87
D2-3
MECHANICAL ADJUSTMENTS
2-3:2-2:
When the Tape Running Mechanism does not work well, adjust the following items.
CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD
1.
2.
3.
4. When the height is not correct, turn the screw 3 to
adjust the height. Then, adjust the 1~3 again.
Playback the VHS Alignment Tape (JG001 or JG001B).
(Refer to SERVICING FIXTURE AND TOOLS)
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)
b)
Turn the screw 2 to set the audio level to maximum. 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 reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared. When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a).
P4 Post
Fig. 2-2-A
Audio/Control Head
1
3
2
Fig. 2-2-B
Audio/Control Head
Fig. 2-2-C
TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1) Confirm and adjust the Audio/Control Head.
(Refer to item 2-2) Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to HOT side of Audio Out Jack. Playback the VHS Alignment Tape (JG001S or JG001T). (Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Set the X Value adjustment driver (JG153) to the 4 of 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. 2-3.
1.
2.
3.
4.
5.
6.
7.
8.
4
Audio/Control Head
Reflected picture of Stamp Mark
Stamp Mark
Tape
0.25±0.05mm
Envelope
CH-3 Audio
(1)
(2)
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP1002 and CH-2 to the Hi-Fi Audio Out Jack. Playback the VHS Alignment Tape (JG001P or JG001Q).
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the Tracking Up button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the Tracking Down button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). If the difference are more than 3 steps, set the X Value adjustment driver (JG153) to 4 of Fig. 2-2-B. Change the X Value and adjust it so that the value becomes within 2 steps.
1.
2.
3.
4.
5.
6.
7.
Page 88
D2-4
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
5
6
7
8910
1
2
3
4
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
7.
8.
9.
10.
P4 Post T Brake Spring T Reel S Reel Adjusting section for the Tension Arm position
Page 89
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL
ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.
CAUTION
Use an isolation transformer when performing any service on this chassis. Before removing the anode cap, discharge electricity because it contains high voltage. When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors. When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
(VCR SECTION)
2-1: PG SHIFTER
1.
2.
3.
4.
Connect CH-1 on the oscilloscope to TP1002 and CH-2 to pin 4 of CP1003. Playback the alignment tape. (JG001A) Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. If the indicator REC disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.
6.
7.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. When the REC indicator is blinking, press both VOL. DOWN button on the set and the channel button (4) on the remote control simultaneously and adjust the Tracking +/- button until the arising to the down of Head Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
Press the Tracking Auto button.
6.5H
6.5H
Fig. 2-1-B
CH-2
CH-1
CH-1
CH-2
Fig. 2-1-A
2. BASIC ADJUSTMENTS
2-2: VCO FREERUN
1.
2.
3.
4.
5.
6.
7.
8.
9.
Place the set with Aging Test for more than 10 minutes. Receive the VHF HIGH. Disconnect the Antenna while receiving the VHF HIGH and set to the Noise screen. Once turn off the Power and turn on the Power again. Approxi. 3 seconds later, input the Antenna again. Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. After the 2.5V adjustment, countdown the VIF VCO step No. by 1 step with the VOL. DOWN button.
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the clock to the non-setting state. Then, set the volume level to minimum. Press the VOL. DOWN button on the set and the Channel button (9) on the remote control simultaneously to appear the adjustment mode on the screen as shown in Fig. 1-1.
1.
2.
Fig. 1-1
Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end the adjustments.
3.
4.
FUNCTION
OSD H CUT OFF RF AGC DELAY VIF VCO H VCO H PHASE V SIZE V SHIFT R DRIVE B DRIVE R CUT OFF G CUT OFF B CUT OFF
NO.
00 01 02 03 04 05 06 07 08 09 10 11 12
Fig. 1-2
FUNCTION
BRIGHTNESS CONTRAST COLOR TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST
NO.
13 14 15 16 17 18 19 20 21 22 23 24
TV
00 OSD 15
D3-1
Page 90
ELECTRICAL ADJUSTMENTS
2-3: RF AGC DELAY
1.
2.
3.
4.
Receive the VHF HIGH (63dB). Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC DELAY". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.9V ± 0.05V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
2.
3.
4.
Connect the digital voltmeter to the TP601. Set condition is AV MODE without signal. Using the remote control, set the brightness and contrast to normal position. Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
2-8: HORIZONTAL PHASE
1.
2.
3.
4.
Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE". Press the VOL. UP/DOWN button on the remote control until the right and left screen size of the vertical line becomes the same.
1.
2.
3.
4.
5.
6.
Adjust the unit to the following settings. R CUT OFF=128, G CUT OFF=128, B CUT OFF=128, BRIGHTNESS=128, CONTRAST=100 Place the set with Aging Test for more than 15 minutes. Set condition is AV MODE without signal. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". Adjust the Screen Volume until a dim raster is obtained.
2-5: CUT OFF
2-6: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment.
1.
2.
3.
4.
5.
6.
7.
8.
Place the set with Aging Test for more than 15 minutes. Receive the color bar pattern. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R CUT OFF". Using the VOL. UP/DOWN button on the remote control, adjust the R CUT OFF. Press the CH. UP/DOWN button on the remote control to select the "R DRIVE", "B DRIVE", "G CUT OFF" or "B CUT OFF". Using the VOL. UP/DOWN button on the remote control, adjust the R DRIVE, B DRIVE, G CUT OFF or B CUT OFF. Perform the above adjustments 6 and 7 until the white color is looked like a white.
2-7: FOCUS
1.
2.
3.
4.
Receive the monoscope pattern. Using the remote control, set the brightness and contrast to normal position. Turn the Focus Volume fully counterclockwise once. Adjust the Focus Volume until picture is distinct.
2-9: VERTICAL SHIFT
1.
2.
3.
4.
5.
Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT". Check if the step No. V. SHIFT is "3". Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask.
2-10: VERTICAL SIZE
1.
2.
3.
4.
Receive the cross hatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE". Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum.
2-11: SUB BRIGHTNESS
1.
2.
3.
4.
5.
6.
Receive the monoscope pattern. (RF Input) Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRIGHTNESS". Press the VOL. UP/DOWN button on the remote control until the white 10% is starting to be visible Receive the monoscope pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
D3-2
Page 91
ELECTRICAL ADJUSTMENTS
2-13: SUB TINT
1.
2.
3.
4.
5.
6.
7.
2-15: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
(Refer to Fig. 2-4)
B
A
TV
00 OSD 15
Fig. 2-4
Receive the color bar pattern. (RF Input) Connect the oscilloscope to TP801. Using the remote control, set the brightness, contrast, color and tint to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line.
(Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
Fig. 2-2
2-14: SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
Receive the color bar pattern. (RF Input) Connect the oscilloscope to TP803. Using the remote control, set the brightness, contrast, color and tint to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (15) on the remote control to select "COLOR". Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110 ± 10% of the white level. (Refer to Fig. 2-3) Receive the color bar pattern. (Audio Video Input) Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~6.
"A"
2-16: SUB SHARPNESS
1.
2.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "SHARPNESS". Check if the step No. of SHARPNESS is "40". Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 1, 2.
2-17: H VCO
Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H VCO". Check if the step No. of H VCO is "4".
1.
2.
100%
White 0%
Red Level
White 100%
Fig. 2-3
2-12: SUB CONTRAST MANUAL
1.
2.
3.
4.
5.
6.
Receive the color bar pattern. (RF Input) Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (14) on the remote control to select "CONTRAST". Press the VOL. UP/DOWN button on the remote control until the contrast STEP No. becomes "100". Receive the color bar pattern. (Audio Video Input) Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
D3-3
Page 92
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
FB401
CP351
TU601
VR502 VR401
TP601
AC IN
TP4001
TP1002
TP1001
CP1003
CP851A
SYSCON PCB
A/C HEAD
OPERATION PCB
SPEAKER
CD352
CD757
CD351
D3-4
CP4002
CP757
CRT
CP502
L503
J801
TP803
TP801
R802
R810
CRT PCB
CRT
CP851B
CD801
CP801
Page 93
ELECTRICAL ADJUSTMENTS
4.PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
1.
2.
3.
Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. Place the CRT surface facing east or west to reduce the terrestrial magnetism. Turn ON the unit and demagnetize with a Degauss Coil.
4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
2.
3.
4.
5.
6.
7.
8.
Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 4-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. Receive the green raster pattern from the color bar generator. Slide the deflection yoke until it touches the funnel side of the CRT. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. Switch the color bar generator from the green raster pattern to the crosshatch pattern. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7.
4-2: PURITY NOTE
Adjust after performing adjustments in section 4-1.
1.
2.
3.
4.
5.
Receive the green raster pattern from color bar generator. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. Confirm red and blue colors. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS
Fig. 4-1
4-3: STATIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-2.
1.
2.
3.
Receive the crosshatch pattern from the color bar generator. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
4-4: DYNAMIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-3.
1.2.Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left.
(Refer to Fig. 4-2-a)
Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke.
(Refer to Fig. 4-2-b)
R G B
R G B
R G B
R G B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Fig. 4-2-a
WEDGE
WEDGE
WEDGE
WEDGE POSITION
Fig. 4-2-b
D3-5
Page 94
THERMAL
Q608
CUT OFF SW
POWER OFF_H
AC IN
TV BLOCK DIAGRAM
MICON/ OPERATION/ IN/OUT
Q804
BLUE AMP
Q805
GREEN
Q806
RED AMP
Q405
H-DRIVE
Q406
H. OUTPUT
DY
7
V. OUTPUT IC IC401 AN5522
3
5
VCC
AMP
2
7
F
S
9
2
HV
10
7 9
F 7 3
J801
V801
CRT
1
IC502 TLP621(GR)
FEED BACK
D518, D520, D521, D530
RECTIFIER
SW.
Q507
T501
8
5
VR502
3
16
11
AT+12V
SP351 SPEAKER
SOUND AMP IC IC351 AN7511
6
8
2
VCR_POWER-H
5
MICON/ OPERATION/ IN/OUT
4
TV_A_MUTE
1
P. CON+5V
6
COL +B
E180 ABL AFC HEA
CHROMA IC IC601 M61206FP
57
62
1
64
5
16
15
14
10
31
60
63 48 56
55 41
42
33
39 46
13
32
29
17
7
6
TU601
11
5
4
1
SAW FILTER CF601
1
54
Y/C_AUDIO
TU_AUDIO TU_VIDEO
SDA
SCL
Y/C/AUDIO/
CCD/
HEAD AMP
MICON/
OPERATION/
IN/OUT
AT+5V_BACK UP
X602
3.579545MHz
53
Q602, Q603
REG.
Q606
Q604, Q605
F501
14
13
UNREG+8V
1
2
TH501
F502
POWER_FAIL
50
1
E180V
27
TV_POWER-H
E-1 E-2
HEAD
SP–
SP+
CD352
J351
FB401
L503
DEGAUSS COIL
NC
REG.
REG.
52
12
AT+12V
AT+5V
AT+12V
2 1
MICON/
OPERATION/
IN/OUT
PUMP UP
21
Q609
POWER ON
SW.
Q403
Q404
X-RAY_TEST
SW.
X-RAY
3
Q601
BUFFER
+B ADJ
JACK
AMP
SW.
PROTECTION
FEED BACK
Q511
SWITCHING
Q510
SWITCHING
5V REG IC
IC501 KIA78R05PI
Q407
H-CONTROL
SW
H_CTL
MICON/ OPERATION/ IN/OUT
X' TAL
H. PLUSE OUT
FBP IN
H OUT
ACL/ABCL
AFT OUT
VIF IN
VIF IN
RF AGC OUT
AUDIO OUT
SDA
SCL
FAST BLK
R OUT G OUT B OUT
V OUT
V PLUSE OUT
EXT AUDIO IN
VIF VIDEO OUT
VREG VCC
5.7V REG OUT (FOR CPU)
MCU RESET
8.7V REG OUT
5V REG
POWER ON CONT
FM DIRECT OUT
VIF APC FILTER
IF AGC FILTER
IF AGC
SW REG CONT
V RAMP FEED BACK
HD
OSD_G AFT_M
OSD_B OSD_R
OSD_BLK
VD
TV_POWER-H
Page 95
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
E-3
E-4
X4001
3.579545MHz
30
2
80
76
32
10
67
62
65
7
9
6
8
36
39
59
4
5
3
SYNC SEP
CP4001
4
3
2
SP-CH1 (R)
SP_COM
SP-CH2 (L)
CYL
FE HEAD (HOT) FE HEAD (GND)
2
1
CP4003
FE HEAD
CP4002
6 5 4
AUDIO PB AUDIO REC CTL+
HEAD
AUDIO
CONTROL
3 2
1
AE HEAD(-) AE HEAD(+)
CTL-
CTL+
CTL-
MICON/ OPERATION/ IN/OUT
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71201M-N-MPB
TV
39
Q4010
BUFFER
50 49
41
43
37
57 58
25
24 26
66
72
74
73
H
P
T4001
H. SW
VCR_A_MUTE
ENV. DET
DUMMY_V. SYNC SD_VIDEO
SD_SYNC
TU_VIDEO
FRONT_AUDIO
Y/C_AUDIO
623
1
5
Q4005
BIAS CTL
11
4
P. CON + 5V
1
C-ROT
RF-SW IN
AUDIO
MUTE HA SW
ENV DET
Q4006
BIAS OSC
Q4003
SW
Q4001, Q4002
AUDIO PB SW
Q4012
BUFFER
COIL, BIAS OSC
R
HA
GND
P P
R
P
L
H L
C-LPF
REC AMP
AUTO BIAS
EQ
AMP
PB.EE
MUTE
LINE AMP
LPF
ALC
1 2 3
R P
12
3
28
QV-QH
60B
SYNC SEP
VIDEO AGC
VX01
PLL
REC APC
REC APC
R
P
Main CONV
3.58M BPF2
B-UP AMP
AGC
ACC DET
3.58M BPF1
NYR/COMB
UOT
CCD
CLAMP AUTO-BIAS
VCA
V.REC_ST-H
NC
NC
TU_AUDIO
NC
MICON/ OPERATION/ IN/OUT
55
53 54
Y/C_CLK Y/C_DATA Y/C_CS
MICON/ OPERATION/ IN/OUT
SERAIL DECODER
Q4007
SYNC IN
Q4009
BUFFER
FRONT_VIDEO
Q4011
BUFFER
P. CON+5V
VD
TV
TIMMING
DRIVER
OUT
VREF
Page 96
E-5 E-6
66 56
V-REC-ST-H
CVIN
27
76
VCR-POWER
CAP-PWM
X-OUT(12MHz)
39
35
XC-IN(32MHz)
85
POWER_FAIL_L
72
IIC-DATA1
TIMER SYSCON MICON IC IC1001 OEC7071A
38
X-IN(12MHz)
36
XC-OUT(32KHz)
71
IIC-CLK1
94
CTL-
95CTL+
62
7
B
AFT(MONI)
63
G
64
R
59 58
V-SYNC
H/C-SYNC
60
OSD OUT1
30
29
REC LED
T-REC LED
9
KEY 1
14
REMOCON-IN
28
TV-POWER
10
KEY 2
34
RESET-L
87
11
CAP-FG CAP-FWD
50
80
REEL-T
TAB SW
321
OS753
CH DOWN
CH UP VOL. UP VOL. DOWN
POWER ON/OFF
REC/OTR STOP/EJECT PLAY
FF/CUE
REW/REV
X1001 12MHz
X1002
32.768KHz
1 OUT
SYSTEM RESET IC IC1003 R3111N311A/C
6
5
SDA
SCL
EEP ROM IC IC1099 S-24C04BDP-LA
SW1001
Q1023
X_RAY_SW
D793
D791
Q1007
REC LED SW
(AI)
Q1008 ON TIM/T-REC
LED SW(TO)
9
5
CAP/M F/R
LDM_CTL
4
CAP_CTL
CP1001
1
3
4
2
REEL SENS.
Q1005
POWER FAIL2
MICON/OPERATION/IN/OUT BLOCK DIAGRAM
X_RAY
SDA SCL
OSD_R
CTL+
SD_VIDEO
CTL­V. REC_ST_H
VD
OSD_G
AFT_M
OSD_B
OSD_BLK
HD
Y/C/AUDIO/CCD/ HEAD AMP
TV
CAPSTAN DD UNIT
TV_POWER_H
FF/REW-L
97
73
CTL AMP-OUT
Q1004
FF/REW_SW
J701
AUDIO L
VIDEO
4
2
1
3
FRONT_VIDEO
FRONT_AUDIO
VCR_POWER_H
TV
82TV_A_MUTE
TV_A_MUTE
2
1
MSSEN-B
MSSEN-A
14
3
2
1
4
32
MS_SEN A
Q1009
MS_SEN B
Q1003
AT+5.6V
P. CON+5V
20
REC/OTR T-REC
69 CS
6
VIDEO ENV
81
VCR_A_MUTE
Y/C/AUDIO/CCD/
HEAD AMP
13
DUMMY-V.SYNC
DUMMY_V. SYNC
Y/C_CS ENV_DET
VCR_A_MUTE
41
X-RAY_TEST
X-RAY_TEST
1
CAP_FG
12
I LIMIT
77
90
DRUM-PWM
LDM CTL DRUM FG/PG
18
VIDEO-H. SW
H. SW
68
SDATA
70
SCLK
Y/C_DATA Y/C_CLK
SD_SYNC
24
H_CONTROL
H_CONTROL
12
11
10
CYL_CTL
CTL_FG/PG
I LIMIT
AT+5.6V
3
EOT
61
CENTER LED
4
BOT
D1003
Q1013
EOT SENSOR Q1024
LED DRIVER
Q1011 BOT SENSOR
AT+5V
POWER OFF_H
Page 97
OS753
J351
D791
D793
SW795SW793SW792
SW794
SW791
SW799
SW798
SW796
SW797
SW751
C382
R351
R350_1
W811
C755_1
R766
R754_2
R793_2
R772_1
W001
R775_1
R776_1
R777_1
J701_1
R773_1
R774_1 R771_1
W002
W003
W004
W005
W006
W007
W008
R778_1
W814
W009
W815
CD352
CD757
CD351_1
W812
W805
PRINTED CIRCUIT BOARDS
OPERATION
SOLDER SIDE
F-1
F-2
Page 98
R607
W021
W022
W145
D620
D619
D621
W085
C655
L612
W088
R668
C648
C652
C644
C632
C627
L607
CF603
CF604
C687
W071
R654
W093
B604
C641
C664
Q606
W067
C649
C665
D605
W181
X602
W092
W138
W184
W126
D611
D609
W129
W064
W065
W066
W072
D615
D610
W069
W074
B602
CF601
C418
C438
T401
C417
C431
D409
D408
CP851A
R456
R460
D412
W018
C433
Q405
D613
D612
W878
D614
W063
W020
W019
L601
W016
C624
W032
W031
W030
W068
W070
W073
W089
W091
W094
W131
W086
W175
W171
W168
W169
W167
W187
W165
W149
W135
W055
W054
R1008
C406
C537
W036
HS401
Q406
HS402
W857
W917
R651
W004
W807
C423
R501
D507
R500
D537
C422
C405
C524
D517
C424
W008
W820
W832
W890
W884
W823
W824
FH503
FH504
F502
S102A
W037
R640
W035
W014
R508 R512
C507
C508
TH501_1
L603
W838
W002
D510_1
R408
R421
C402
W023
B403
R453
D410
W866
R490
D515
C534
D528
C509
L502
CP502
R419
R554
R505
C610
C612
D508
D514
C539
W011
R514
W001
C407
W872
W871
IC401
C354
CP351_1
C523
C519
VR502
W009
W043
R553
R532
C516
C518
C505
C511
R415
R450
L401
R447
B402
CP401
C506
F501 FH501FH502
FB401
D518
D530
D520
D521
HS501_1
Q510
C535
R517
R502
Q511
W012
R531
R529_1
Q507
W006
W007
D533
D534
W005
IC501
R511
D535
W013
D536
T501
W034
R402
R422
D401
R423
W853
VR401
D405
D407
D411
W028
W040
R440
C517
C521
W029
Q806_1
Q804_1
Q805_1
CP851B
C801
CP801
R802
TP802
L801
R810
R805
R807
TP803
TP801
J801_1
W151
W124
R503
D505
D512
D519
D501
W059
W057
W813
IC502
W146
W056
W862
D513
R522
W049
W041
W045
R528
CP505
CP504
C1001
C1007
R1064
TP601
W033
W840
W090
C1003_1
C1021
C643
C1058
W180
W801
W144
Q1009
Q1003
W163
W139
W270
W242
W269
Q603
W255
W253
W239
Q602
C1016
C1015
W240
W232
L1001
Q1005
R1016
C1020
W268
W249
X1001
X1002
IC1099
SW1001
W237
W238
W250
W254
W150
CP757_2
W912
W213
Q1013
W257
W173
R4028
W087
Q4006
W112
W111
W108
W107
CP4001_1
W122
W096
W046
W097
C4025_1
C351
C356
C355
W104
W103
W105
W024
W101
W116
R612
W120
W109
TP4001
R4007
R4006
W027
W080
C4034
C4030
Q4002
C4035
T4001
L4003
Q4005
C4010
C4031
C4067
C4058
C4048
C4051
W098 W095
C4027
W119
L4001
C4023
C4012
L4005
W118
C4065
L4006
W099
C4063
R4004
W121
X4001
C4052
C4047
C4046
C4062
C4049
C4053
R4032
W117
W048
R4029
CP353_1
W047
IC351
CP4003
R4014
W044
Q4001
C4002
CP1003
R4048
L4009
C4042
W223
W189
W192
W100
CP4002
W106
W082
TP1002
W193
W194
W195
W191
W198
C1018
W207
W211
W078
W212
W205
W158
D1003
Q1011
D4003
CP1001
W152
W081
W155
W197
W153
W157
W156
W160
W243
W174
W143
R1010
W127
W179
W147
W084
W162
W178
W125
W200
W201
W202
W236
W248
W215
W154
W209
W159
W182
W230
W113
W231
W229
W227
W228
W825
W110
W188
W214
W220
W272
W190
W196
W273
W267
W266
W262
W259
W177
W185
C4045
W208 W206
W210
W217
R4016
W234
W246
W233
W148
W225
W130
W051
W114
W115
R808
R820
W203
W199
C659
W166
W172W244
W245
W176
W247
R1028
R672
W061
W850
W137
W814
W026
R1051
C432
C4009
R404
W123
W140
W077
L1003
W277
W863
W075
W076
D1001
W808
W276
W128
W134
S101A
TU601
D602
D601
R655_1
W060
S107X
S107Y
W218
W222
W221
C530
C522_1
W279
W280
W282
W283
TP1001
C1032
C4004
W141
R650
R533
W828
S818X
S818Y
W285
B501
W042
W170
W286
W274
W164
W161
W287
W186
W288
C515
B503
R524
W142
Q605
Q604
W290
W291
D402
D608
D413
CD852
W888
W805
W806
W901
W895
W827
W874
W848
W829
W811
W834
W817
W847
W816
W836
S825X
S825Y
W858
C541
R666
W003
W897
W856
D404
D403
R449
C451
S802Y
S802X
R1066
W915
CD501
W296
PRINTED CIRCUIT BOARDS
SYSCON/CRT (INSERTED PARTS)
SOLDER SIDE
F-3 F-4
2.5A125VOR250V
5A125VOR250V
Page 99
R601
R638
C673
R676
C660
R669
R610
R618
R616
Q601
R620
R609
R665
R622
C618
R615
C622
R608
C636
C625
C672
R625
C640
C674
C650
R633
R644
C651
C654
Q608
C621
R614
R642
R646
R647
R635
R658
C630
R627
C688
R648
R643
R639
R613
R652
R659
R660
R641
C658
R649
C653
R631
C647
R603
C629
R656
R657
R626
R602
C675
R624
C639
C634
IC601
C416
R442
R444
R439
Q404
R420
C527
Q609
R628
C645
R441
R411
R516
C554
R401
C602
C605C604
R416
R413
R414
R504R506R510
C536
C510
R525
R527
C532
C811
R813
R815
R814
C809
C810 R812
R811
C805
R816
Q407
Q505 R513
R507
R636
C631
C1084
C1083
C1082
R1053
R1005
IC1003
C1056
R4026
C4043
C1039_1
R1020
R1047
C1009
C1068
R1050
C667
R1038
R1044
C656
R1007
R1021
R1035
Q403
C1037
R1001
R1046
R1018
C1017
R1049
Q1024
R1078
C1062
C1029
C1065
R1029
C1028
R1017
R1042
R1045
C1061
C1060
R663
C1010
C1023
C1004
R1036
C1027
Q1004
C1022
C1025
R1012
C1019
R1013
R1009
C1013
C1071
R1034
R1033
C1038
C1035
C1034
C1031
R1031
R1032
C1046
C1047
C1040
C1048
R1040
C1049
C1050
R1070
R1083
R1087
IC1001
R1052
Q1007
Q1008
C4206_1
R4015
R4068
W025
W818
R4064
R4062
R4033
R4060
R4054
C4074
R4055
R4057
Q4011
C4075
R4058
R4056
R4052
R4053
R4020
R359
R4017
R4037
C4014_1
R4025
C4038
R4011
C4005
R4010
Q4003
R4023
R4024
R4003
R4002
C4006
R4001
R4022
C4033
R4021
C4032
R4043
R4041
C4061
R4038
R4035
R4034
Q4010
C4037
C4036
Q4012
C4029
R4019
R4018
C4028
C4044
C4059
C4060
C4066
R4042
C4064
R4039
C4020
C4021
C4055
R4012
C4054
C4069
C4019
C4015
C4016
IC4001
C301
R4201
R357
R352
R353
R1011
Q4009
C4041
R1025
R4044
Q4007
R4045
Q1023
C1089
C4076
R4061
R4059
R1075
R1030
R1048
W903
C4057
R4047
C4024_1
R1019
C4050
R1073
C1026
R1022
R1054
R1055
C623
Q612
Q611
C357
C1043
W887
W873
W865
C1042_2
W284
R530
R1063
W810
W894
W907
R4051
W880
W846
PRINTED CIRCUIT BOARDS
SYSCON/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
F-5
F-6
17
33
49
1
1
31
51
81
1
21
41
61
Page 100
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
D4003
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X4001
100CT3R502
C4027
336.3V KA
C4025_1
2206.3V KA
C4012
226.3V KA
C4031
3.350V KA
C4042
100
6.3V
KA
C4034
4.725V KA
C4035
150V KA
C4045
2206.3V KA
C4004
2206.3V KA
C4009
4716V KA
C4023
226.3V KA
C4075
150P CH
C4029
0.01 F
C4074
0.01 F
C4024_1
18P CH
C4014_1
0.047 B
C4002
0.022100V MKT
C4033
820PB
C4054
0.1 F
C4059
0.1 F C4061
0.01 F
C4032
0.0033 B
C4041
0.1 F
C4043
0.1 F
C4020
0.1 F
C4038
180PCH
C4069
0.1 F
C4037
0.1 F
C4044
0.1 F
C4036
390PB
C4005
0.01 F
C4060
0.01 F
C4066
0.022 B
C4028
0.1 F
C4006
0.015 B
C4021
0.1 F
C4015
0.047 F
C4019
0.047 F
C4016
0.068 B
C4064
0.022 B
C4055
1F
C4050
0.22 B
C4057
1F
C4076
0.1 F
R4068
2.2M
R4020
150
R4019
330K
R4001
560
R4021
22K
R4023
33K
R4022
470
R4038
680K
R4045
12K
R4006
47K 1/4W
R4007
39K 1/4W
R4035
100K
R4002
10K
R4003
10K
R4047
12K
R4025
1.5K
R1025
100
R4048
68 1/4W
R4004
15 1/4W
R4052
8.2K
R4054
18K
R4056
4.7M
R4058
2.7K
R4051
2.7K
R4059
10M
R4061
10M
R4012
820
R4064
6.8K
R4010
3.3K
R4044
100K
R4043
3.3K
R4041
1.8K
R4042
820
R4034
82K
R4060 1.5M
R4028
47K 1/4W
R4026
39K
R4015
2.2
R4033
2.2K
R4062
3.3M
R4032
100 1/4W
R4029
47K 1/4W
R4057
6.8K
R4055
1K
R4018
8.2K
R4017
6.8K
R4011
22K
R4053
6.8K
R4039
8.2K
R4024
5.6K
R4037
390
R4014
470K 1/4W
R4016
2.2M 1/4W
C4067
150V KA
C4046
3.350V KA
C4030
1016V KA
C4058
476.3V KA
C4063
476.3V KA
C4053
4.750V KA
C4062
150V KA
C4065
150V KA
C4047
1016V KA
C4052
4.750V KA
C4049
1016V KA
C4051
336.3V KA
C4048
1016V KA
C4010
476.3V KA
Q4001
KTC3198
AUDIO PB SW
Q4002
KTC3198
AUDIO PB SW
Q4006
KTC3203_Y
BIAS OSC
Q4007
2SC2412K
SYNC IN
Q4011
2SC2412K
BUFFER
Q4012
2SC2412K
BUFFER
W897
W880
W888
W818
W858
TP4001
V.ENV
W887
W873
Q4010
2SA1037AK
BUFFER
Q4009
2SA1037AK
BUFFER
Q4005
KTA1266
BIAS CTL
L4001
22uH 0305
L4009
100uH
0305
L4006
47uH
0305
L4003
100uH
0305
L4005
47uH
0305
TUNER VIDEO SIGNAL
RECORD COLOR SIGNAL
RECORD COLOR SIGNAL
CP4003 TMC-T02X-E1
1
2
Q4003
KRA103SRTK
SW
CP4002 IMSA-9604S-06Z14
1
2
3
4
5
6
CP4001_1 TOC-C04X-B1
1
2
3
4
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
CAUTION: DIGITAL TRANSISTOR
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB)
RECORD LUMINANCE SIGNAL
T4001
1626009
COIL,BIAS OSC
1
2345
6
IC4001
LA71201M-N-MPB
Y/C/A/CCD/H.AMP IC
1 10111213141516
17 18 192 20
21 22 23 24 25 26 27 28 29
3
30 31 32 33 34 35 36 37 38 39
4
40
414243444546474849550515253545556575859660
616263646566676869
7
70717273747576777879
8809
H.SW
Y/C_CS
ENV_DET
Y/C_CLK
H.AMP_SW1
Y/C_DATA
P.CON+5V
P.CON+5V
VCR_A_MUTE
P.CON+5V
GND
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
SD_SYNC
PLAY_LED
P.CON+5V
TU_VIDEO
FRONT_VIDEO
P.CON+5V
Y/C_VIDEO
TU_AUDIO
SD_VIDEO
P.CON+5V DUMMY_V.SYNC
FRONT_AUDIO P.CON+5V
TU_VIDEO
TU_AUDIO
SD_VIDEO
Y/C_AUDIO
VD
P.CON+5V SD_SYNC
V.REC_ST_H
CTL+
CTL-
GND
HOT
Y/C_AUDIO
VCR_A_MUTE
PLAY_LED
P.CON+5V
VD
AUDIO_REC
AUDIO_PB
TO FULL ERASE HEAD
NC
NC
NC
G-2G-1
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
(SYSCON PCB)
VMA227
PCB010
FROM/TO HEAD AUDIO CONTROL
FROM/TO MICRO MOTOR
FROMTV POWER
FROM/TO CHROMA/IF
FROM/TO MICON
FROM/TO IN/OUT
FE HEAD(GND)
FE HEAD(HOT)
SP-CH2 (L)
SP-CH1 (R)
CTL+
CTL-
AE HEAD(-)
AE HEAD(+)
SP COM
NC
NC
0
0
0.7
0.7
0
0
5
5.3
0
5.2
0
0
0
NC
NC
+
Vref
2.3V
SP,LP
EQ
AMP
ALC
ALC
A-VCC
1 2 3
A-GND
HA
PRE GND
R
P
P
R
P
P
H
L
H
L
REC:LP<EP PB:EP
DET
PB,EE
PB,EE
VREF
REC AMP
MUTE
AUTO BIAS
LINE
AMP
REC
FM-EQ
FM
AGC
VHS
SOPB
P
R
PB
FM EQ
P
R
S-EQ
MAIN
DE-EM
LIM
DOUBBLE
FM DEM
SUB LPF
B
S
DET
EMPHA
FIL
MAIN
4.7K
Y-VCC
V.SYNC
SEP
SEP
6DB
QV/QH
AGC TC2
BAL TC1
REG 4V
1 2 3
VDD 4Fsc
CLOCK
PLL
TIMMING OUT
DRIVER
AUTO-BIAS
CLAMP
CCD
VSS
OUT
IN
VCA
VCA
CLAMP
VCP
ALWAYS
5V
B
VX01
320FH
VCO
SLD
PHASE
EQ
fo-ADJ
PHASE
EQ
Q-ADJ
FM AGC FIL
Y-GND
R
P
FBC
1/2
VIDEO
AGC
Y/C
MIX
NC1
N.L.
DEEM
Y-LPF
CLAMP
DETAIL
ENH
NL
EMPHA
NL
EMPHA
FM MOD
NORMAL
R-EQ TEST
YNR/COMB
3.58M BPF1
B.D
P
PB
AMP
CNC
BGA
BGA
BGA
R
P
AFTER
BEFORE
3.58M BPF2
B-UP AMP
Main CONV
ACC AMP
DET
ACC
C-LPF
4.21M BPF
Sub CONV
R
RPPP
LPF
RP
REC AFC
PB APC
REC APC
P
R
R
P
R
P
C-VCC
SERAIL
DECODER
C-GND
C-ROT RF-SW
IN
AUDIO MUTE HA SW
ENV DET
ACC DET
HA VCC
COMP
OUT
KILL DET
DET
CHROMA
GND
HA
R
R
P
P
R
PB-C
PB-C
R
R
P
P
VSS
SYNC
1
2.8
0
0.7
4
NC
5.2
5.20
4.9
0
0.6
0
5.0
5.0
0 2.3
1.7
5.0
2.2 2.2 2.3 2.2 2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0
0 1.5
0.1 2.2
2.203.33.34.02.61.92.8
2.2
0
4.0
1.8
0.7
0.7
0.7
1.7
1.8
2.0
2.0
2.0
0
2.2
2.0
0
0.85.05.02.35.04.84.84.8000
0
4.9
5.0
0.5
1.7
0
3.0
2.8
3.1
3.1
2.6
2.0
4.0
NC
2.0
2.3
2.3
1.6
2.9
3.6
0
4.9
2.8
1.8
2.3
0
3.4
4.0
2
3
NC
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