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                         S/M No. : VT7C1PSEF0



Service Manual
Video Cassette Recorder
ALL T-MECHA (Hi-Fi/MONO)
Model: (PAL/SECAM MODELS)
DV-T7C1/4C1/2C1 Series
DV-T7E1/4E1/2E1 Series
DV-T7M1/4M1/2M1 Series
DV-T7J1/4J1/2J1 Series
DV-T7D1/4D1/2D1 Series
DV-T7T1/4T1/2T1 Series
DV-T7W1/4W1/2W1 Series
DV-T7L1/4L1/2L1 Series




               DV-T7L1




               DV-T7E1




               DV-T7C1




               DV-T7B1


DAEWOO ELECTRONICS CO., LTD.
http : //svc.dwe.co.kr            Feb. 2001
TABLE OF CONTENTS

SAFETY&PRECAUTIONS ................................................................................................ 2
EXTERNAL VIEWS ......................................................................................................... 4
 FRONT VIEWS FUNCTION .................................................................................................................... 4
 REAR VIEWS FUNCTION ...................................................................................................................... 6

ELECTRICAL ADJUSTMENT............................................................................................ 7
SPECIFICATIONS ......................................................................................................... 8
VOLTAGE CHART ........................................................................................................ 9
CIRCUIT DIAGRAM ...................................................................................................... 13
 POWER CIRCUIT DIAGRAM.................................................................................................................           13
 SYSCON CIRCUIT DIAGRAM ...............................................................................................................           14
 A/V CIRCUIT DIAGRAM (PAL)...............................................................................................................         15
 A/V CIRCUIT DIAGRAM (SECAM) .........................................................................................................            16
 PIF CIRCUIT DIAGRAM........................................................................................................................      17
 HI-FI & SW CIRCUIT DIAGRAM.............................................................................................................          18
 SW CIRCUIT DIAGRAM .......................................................................................................................       19
 SHUTTLE / PATH JIG DIAGRAM .............................................................................................................         20

WAVEFORMS ON VIDEO CIRCUIT ................................................................................ 21
COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ............................................ 24
 PCB MAIN.......................................................................................................................................... 24

DISASSEMBLY ............................................................................................................. 25
 PACKING ASS' ................................................................................................................................. 25
             Y
 FRONT PANEL ASSEMBLY ................................................................................................................... 26
 INSTRUMENT DISASSEMBLY ................................................................................................................. 30

ELECTRICAL PARTS LIST ............................................................................................... 31
 PCB MAIN AS .................................................................................................................................... 31
 TABLE OF DIFFERENT PART LIST FOR PCB MAIN AS .............................................................................. 43


APPENDIX (Appendix is provided only by internet http://svc.dwe.co.kr)

TROUBLE SHOOTING FLOW CHART .............................................................................. 1
 POWER CIRCUIT ................................................................................................................................. 1
 PIF CIRCUIT........................................................................................................................................ 3
 SERVO-SYSCON CIRCUIT .................................................................................................................... 4
 AUDIO CIRCUIT (NORMAL) ................................................................................................................. 12
 VIDEO CIRCUIT .................................................................................................................................. 15




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