Main
SERVICE MANUAL
24 COLOR TV/DVD/VCR
MWC24T5
IMPORTANT SAFETY NOTICE
MAIN SECTION
24 COLOR TV/DVD/VCR
MWC24T5
TABLE OF CONTENTS
Main Section
SPECIFICATIONS
< DEFLECTION >
< DVD >
< VIDEO & CHROMA >
< VCR >
< TUNER > < NORMAL AUDIO>
< Hi-Fi AUDIO >
LASER BEAM SAFETY PRECAUTIONS
CAUTION
Location: Top of DVD mechanism.
LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM.
IMPORTANT SAFETY PRECAUTIONS
Safety Precautions for TV Circuit
+
_
ALSO TEST WITH PLUG REVERSED USING AC ADAPTER PLUG AS REQUIRED
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Precautions during Servicing
Safety Check after Servicing
1. Clearance Distance
2. Leakage Current Test
STANDARD NOTES FOR SERVICING
Circuit Board Indications
Instructions for Connectors
Pb (Lead) Free Solder
How to Remove / Install Flat Pack-IC
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2. Installation
Example :
Instructions for Handling Semi- conductors
1. Ground for Human Body
2. Ground for Workbench
<Incorrect>
<Correct>
PREPARATION FOR SERVICING
How to Enter the Service Mode
Preparing 1:
How to Enter the Service Mode
Preparing 2:
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
2. Disassembly Method
CAUTION!
Reference Notes in the Table
[1] Rear Cabinet
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[3] CRT
View for A
1-6-5 T2202DC
DVD MAIN CBA UNIT
MAIN CBA
CRT CBA
DECK ASSEMBLY
SUB CBA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: CBA is abbreviation for Circuit Board Assembly.
Test Equipment Required
How to make service remote control unit:
How to enter the Service mode:
2. Setting for CONTRAST, COLOR, TINT, V-TINT and SHARP Data Valu es
3. H f0 Adjustment
4. Cut-off Adjustment
5. H. Size Adjustment
6. H. Pincushion Adjustment
7. White Balance Adjustment
8. Sub-Brightness Adjustment
Color Analyzer
White Black This bar just visible
9. Focus Adjustment
10. H. Position Adjustment
11. V. Shift Adjustment
12. V. Size Adjustment
13. Head Switching Position Adjustment
14. Purity Adjustment
GREEN RED BLUE
15. Convergence Adjustment
HOW TO INITIALIZE THE TV/DVD/VCR
< DVD Section >
< TV/VCR Section >
FIRMWARE RENEWAL MODE
1-10-1
BLOCK DIAGRAMS < TV/VCR Section >
DRIVE
MOTOR
M
FUNCTION CBA
Video Block Diagram
I/F
SERIAL
SP
CYLINDER ASSEMBLY
Audio Block Diagram
JUNCTION-B CBA
JUNCTION-A CBA
/STANDBY
MUTE
Hi-Fi Audio Block Diagram
PB AUDIO SIGNAL REC AUDIO SIGNAL
MAIN CBA
CYLINDER
T2202BLH
TV Process Block Diagram
REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL
T2202BLT
Mode : SP/REC
MAIN CBA SUB CBA
CRT/H.V. Block Diagram
Q2533
Q2531
H.
REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL
COLD
T2202BLP
SUB CBA
HOT
MAIN CBA
BLOCK DIAGRAMS < DVD Section >
DVD MAIN CBA UNITDRIVE CBA
T2202BLSD
DVD System Control / Servo Block Diagram
M
Digital Signal Process Block Diagram
DVD AUDIO SIGNAL
1~4 7~1417~18 215~216
~~
UNIT
SCHEMATIC DIAGRAMS / CBAS AND TEST POINTS
Standard Notes
WARNING
Notes:
3. Note:
7. Test Point Information
4. Mode: SP/REC 5. Voltage indications for PLAY and REC modes on the schematics are as shown below:
6. How to read converged lines
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1-11-8 T2202SCM6
Main 6/6 Schematic Diagram < TV/VCR Section >
4A 125V
For continued protection against risk of fire, replace only with same type 4 A, 125V fuse.
CAUTION ! : ATTENTION : Utiliser un fusible de rechange de mme type de 4A, 125V.
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1-11-15
Main CBA Top View < TV/VCR Section >
Sensor CBA Top View
BT1200F01013
BHF300F01011A BHF300F01011B
1-11-16
Main CBA Bottom View < TV/VCR Section >
For continued protection against risk of fire, replace only with same type 4 A, 125V fuse.
CAUTION ! : ATTENTION : Utiliser un fusible de rechange de mme type de 4A, 125V.
4A 125V
Sub CBA Top View < TV/VCR Section >
1-11-18
Sub CBA Bottom View < TV/VCR Section >
BT1200F01023-A
CRT CBA Top View < TV/VCR Section > CRT CBA Bottom View < TV/VCR Section >
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WAVEFORMS
X7TWF 1-12-1
WIRING DIAGRAM < TV/VCR Section >
CRT CBA
SPEAKER
SP801
JUNCTION-B
WIRING DIAGRAM < DVD Section >
PICK UP UNIT
DVD MAIN CBA UNIT
DRIVE CBA
DVD MECHANISM
SYSTEM CONTROL TIMING CHARTS
< TV/VCR Section >
Mode SW: LD-SW
1-14-2 X7T4HTI
Chart 1
1-14-3 X7T4HTI
Chart 2
1-14-4 X7T4HTI
Chart 3
SLOW TIMING
Refer to STILL/
CHART 1, 2.
1-14-5 X7T4HTI
Chart 4
2. STOP(A) -> FF -> STOP(A) -> REW -> STOP(A) -> REC -> PAUSE -> PAUSE or REC -> STOP(A) -> EJECT
< DVD Section >
Tray Close ~ Play / Play ~ Tray Open
IC PIN FUNCTION DESCRIPTIONS
IC1201 (TV/VCR Micro Controller IC)
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1-16-1 T2202LE
LEAD IDENTIFICATIONS
1: GND 2: Vout 3: Vin
1-17-1 T2202CEX
EXPLODED VIEWS
DVD Mechanical Parts
Junction-B CBA
Sensor CBA
W1601
Packing
FRONT
20060325 1-18-1 T2202CA
MECHANICAL PARTS LIST
CRT Type No.
CRT Warning Label
CRT
CRT Warning Label Location
ELECTRICAL PARTS LIST
MAIN CBA
DVD MAIN CBA UNIT MMA CBA
20060325 1-19-2 T2202 EL
DIODES
20060325 1-19-3 T2202 EL
ICS
COILS
20060325 1-19-4 T2202 EL
20060325 1-19-5 T2202 EL
SWITCHES
20060325 1-19-6 T2202 EL
SENSOR CBA
MPS CBA
SUB CBA
DIODES
ICS
COILS
20060325 1-19-7 T2202 EL
CRT CBA
20060325 1-19-8 T2202 EL
FUNCTION CBA
JUNCTION-B CBA
JUNCTION-A CBA