PMC-DR50 - Sony Audio Service Manual (repair manual). Page 2

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Specifications ...........................................................................  1

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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, Loading 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

4-1. Mechanical Adjustments ........................................... 16
4-2. Electrical Adjustments .............................................. 16

5-1.   Explanation of IC Terminals ................................... 19
5-2.   Block Diagrams – CD, Tuner Section – ................. 22
5-3.   Block Diagrams – Tape, Main Section– ................. 25
5-4.   Printed Wiring Boards – Main Section– ................. 29
5-5.   Schematic Diagram – Main Section (1/3) – ........... 33
5-6.   Schematic Diagram – Main Section (2/3) – ........... 36
5-7.   Schematic Diagram – Main Section (3/3) – ........... 39
5-8.   Printed Wiring Boards – CD Section – ................... 42
5-9.   Schematic Diagram – CD Section – ....................... 45
5-10. Schematic Diagram – Control Section – ................ 49
5-11. Printed Wiring Boards – Control Section – ............ 53
5-12. Printed Wiring Boards – AMP Section – ................ 57
5-13. Schematic Diagram – AMP Section – .................... 59

6-1.   Case Section ........................................................... 65
6-2.   Control Section ....................................................... 66
6-3.   CD Mechanism Section .......................................... 67
6-4.   Mechanism Deck Section -1 ................................... 68
6-5.   Mechanism Deck Section -2 ................................... 69
6-6.   CD Optical Pick-up Section ................................... 70
6-7.   Speaker (R-CH) Section ......................................... 71
6-8.   Speaker (L-CH) Section ......................................... 72

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