Table Of Contents - Sony PMC-DR50L Service Manual

Specifications ........................................................................... 1
1. SERVICE NOTE
........................................................... 3
2. GENERAL
...................................................................... 4
3. DISASSEMBLY
3-1. Case(bottom), "Cover ASSY, Top" .......................... 6
3-2. CD ASSY .................................................................. 7
3-3. Main Board, Jack Board ........................................... 7
3-4. Tray ........................................................................... 8
3-5. ASP Board ................................................................ 8
3-6. Belt ........................................................................... 9
3-7. Motor Board, Loding Motor (M651) ........................ 9
3-8. Optical Pick-up Block ............................................ 10
3-9. Mechanism Deck .................................................... 10
3-10. TC RF Board, Head Relay Board,
Capstan/Reel Motor (M160) ................................... 11
3-11. Control Board .......................................................... 11
3-12. Display Board ......................................................... 12
3-13. DSP Board, CPU board .......................................... 12
3-14. VOL Board ............................................................. 13
3-15. "Cabinet, Wood", "Cabinet (R) Bottom" ............... 13
3-16. Speaker (R-CH) (SP101) ........................................ 14
3-17. Power Board ........................................................... 14
3-18. AMP Board, AMP IC Board ................................... 15
3-19. Speaker Board ........................................................ 15
3-20. "Cabinet, Wood", "Cabinet (L) Bottom" ................ 16
3-21. Speaker (L-CH) (SP201) ........................................ 16
3-22. Power Transfomer Board ........................................ 17
3-23. SP Main Board, SP AMP IC Board ........................ 17
3-24. AC Outlet Board, SP Jack Board ............................ 18
3-25. Cabinet (SWF) Bottom ........................................... 18
3-26. Speaker (SP601), "Cabinet, Front" ......................... 19
3-27. LED Board, Volume Board ..................................... 19

TABLE OF CONTENTS

4. ADJUSTMENTS
4-1. Mechanical Adjustments .......................................... 20
4-2. Electrical Adjustments .............................................. 20
5. DIAGRAMS
5-1. Explanation of IC Terminals ................................... 23
5-2. Block Diagrams - CD, Tuner Section - ................. 28
5-3. Block Diagrams - Tape, Main Section- ................. 31
5-4. Printed Wiring Boards - Main Section- ................. 35
5-5. Schematic Diagram - Main Section (1/3) - ........... 39
5-6. Schematic Diagram - Main Section (2/3) - ........... 42
5-7. Schematic Diagram - Main Section (3/3) - ........... 45
5-8. Printed Wiring Boards - CD Section - ................... 48
5-9. Schematic Diagram - CD Section - ....................... 51
5-10. Schematic Diagram - Control Section - ................ 55
5-11. Printed Wiring Boards - Control Section - ............ 59
5-12. Printed Wiring Boards - AMP Section - ................ 63
5-13. Schematic Diagram - AMP Section - .................... 65
5-14. Printed Wiring Boards - Woofer AMP Section - ... 68
5-15. Schematic Diagram - Woofer AMP Section - ....... 71
6. EXPLODED VIEWS
6-1. Case Section ........................................................... 77
6-2. Control Section ....................................................... 78
6-3. CD Mechanism Section .......................................... 79
6-4. Mechanism Deck Section -1 ................................... 80
6-5. Mechanism Deck Section -2 ................................... 81
6-6. CD Optical Pick-up Section ................................... 82
6-7. Speaker (R-CH) Section ......................................... 83
6-8. Speaker (L-CH) Section (DR50L Only) ................. 84
6-9. Speaker (L-CH) Section (DR70L Only) ................. 85
6-10. Super Woofer Section (DR70L Only) .................... 86
7. ELECTRICAL PARTS LIST
- 2 -
................................... 87