Sony MDS-J3000, Service Manual

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TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 5
2. GENERAL
.......................................................................... 8
3. DISASSEMBLY
3-1. Case and Front Panel Assembly .......................................... 24
3-2. Bracket (T), (L) and (R) ...................................................... 24
3-3. BD Board ........................................................................... 25
3-4. SUB Chassis ........................................................................ 25
3-5. Shutter Assembly ................................................................ 26
3-6. Over Write Head ................................................................. 26
3-7. Slider Complete Assembly .................................................. 27
4. TEST MODE
..................................................................... 28
5. ELECTRICAL ADJUSTMENTS
............................... 31
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 36
6-2. Brock Diagrams
• BD Section ....................................................................... 37
• Main Section .................................................................... 39
6-3. Waveforms ......................................................................... 41
6-4. Printed Wiring Board — BD Section — ............................. 43
6-5. Schematic Diagram — BD Section — ............................... 45
6-6. Schematic Diagram — Main Section — ............................ 49
6-7. Printed Wiring Board — Main Section — .......................... 53
6-8. Printed Wiring Board — Panel Section — ......................... 55
6-9. Schematic Diagram — Panel Section — ............................ 57
6-10. Printed Wiring Board — HP Section — .......................... 59
6-11. Schematic Diagram — HP Section — ............................. 60
6-12. IC Block Diagrams ........................................................... 61
6-13. IC Pin Functions ............................................................... 67
7. EXPLODED VIEWS
7-1. Case and Main Board Section ............................................. 76
7-2. Front Panel Section ............................................................. 77
7-3. Mechanism Deck Section (1) (MDM-3A) .......................... 78
7-4. Mechanism Deck Section (2) (MDM-3A) .......................... 79
8. ELECTRICAL PARTS LIST
........................................ 80