Sony wx 7700 mdx service manual

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3 WX-7700MDX 1. SERVICING NOTES ................................................ 4 2. GENERAL Location of Controls....................................................... 5 3. DISASSEMBLY 3-1. Disassembly Flow........................................................... 10 3-2. Front P anel Section......................................................... 11 3-3. DISPLAY Boar d............................................................. 11 3-4. Chassis (T) Section......................................................... 12 3-5. MD Mechanism Deck (MG-164MF-138)...................... 12 3-6. POWER Board, Chassis (T) Assy.................................. 13 3-7. Heat Sink ........................................................................\ . 13 3-8. SERVO (MD) Board....................................................... 14 3-9. MD Cov er Assy............................................................... 14 3-10. Float Block ...................................................................... 15 3-11. LO Motor Assy................................................................ 15 3-12. Lever Assy (LE).............................................................. 16 3-13. Holder Assy ..................................................................... 16 3-14. Chucking ARM Assy...................................................... 17 3-15. Optical Pick-up (KMS-241C)......................................... 17 3-16. SL Motor Assy (SLED) (M902)/ SP Motor Assy (SPINDLE) (M901)............................... 18 3-17. CD Mechanism Deck (MG-398D-121).......................... 18 3-18. Motor Assy (Front Panel Open/Close) (M640) .............. 19 3-19. MAIN Board, Chassis (B) Assy..................................... 19 3-20. Brack et (MAIN).............................................................. 20 3-21. Chassis (T388) Assy....................................................... 20 3-22. Sensor (CD) Board.......................................................... 21 3-23. Servo Board, LO Motor SUB Assy (Loading) (M103) ........................................................................\ ..... 21 3-24. ARM Roller Assy, LO AD Board.................................... 22 3-25. Floating Bloc k Assy........................................................ 22 3-26. Optical Pick-up (KSS-720A), Sled Motor Assy (M101) ........................................................................\ ..... 23 4. ASSEMBLY 4-1. Assembly of ARM (L/R) Assy....................................... 23 5. DIAGRAMS 5-1. Block Diagram – CD SERVO Section –....................... 24 5-2. Block Diagram – MD SERVO Section –...................... 25 5-3. Block Diagram – MAIN Section –................................ 26 5-4. Block Diagram – DISPLAY/BUS CONTR OL Section –........................ 27 5-5. Block Diagram – POWER SUPPLY Section –............. 28 5-6. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 29 5-7. Printed Wiring Boards – CD Section (1/2) –................ 30 5-8. Printed Wiring Board – CD Section (2/2) –.................. 31 5-9. Schematic Diagram – CD Section –.............................. 32 5-10. Printed Wiring Boards – MD Section –......................... 33 5-11. Schematic Diagram – MD Section (1/2) –.................... 34 5-12. Schematic Diagram – MD Section (2/2) –.................... 35 5-13. Printed Wiring Boards – MAIN Board (Component Side) –.............................. 36 5-14. Printed Wiring Board – MAIN Board (Conductor Side) –................................ 37 5-15. Schematic Diagram – MAIN Board (1/4) –................... 38 5-16. Schematic Diagram – MAIN Board (2/4) –................... 39 5-17. Schematic Diagram – MAIN Board (3/4) –................... 40 5-18. Schematic Diagram – MAIN Board (4/4) –................... 41 5-19. Printed Wiring Board – DISPLAY Board (Component Side) – ........................ 42 5-20. Printed Wiring Boards – DISPLAY Board (Conductor Side) – .......................... 43 5-21. Schematic Diagram – DISPLAY Board (1/2) –............. 44 5-22. Schematic Diagram – DISPLAY Board (2/2) –............. 45 5-23. Printed Wiring Board – KEY Board (Component Side) –................................. 46 5-24. Printed Wiring Board – KEY Board (Conductor Side) –................................... 47 5-25. Schematic Diagram – KEY Board –............................. 48 5-26. Schematic Diagram – SUB/POWER Boards –............. 49 5-27. Printed Wiring Board – POWER Board (Component Side) – ........................... 50 5-28. Printed Wiring Boards – POWER Board (Conductor Side)/SUB Board –...................................... 51 5-29. IC Pin Function Description........................................... 63 6. EXPLODED VIEWS 6-1. MAIN Section ................................................................. 78 6-2. SUB Panel SUB Assy Section........................................ 79 6-3. Front P anel Section......................................................... 80 6-4. Front Panel SUB Section................................................ 81 6-5. DISPLAY Boar d Section................................................ 82 6-6. Chassis (T) Assy Section................................................ 83 6-7. Chassis (B) Assy Section-1............................................. 84 6-8. Chassis (B) Assy Section-2............................................. 85 6-9. MD Mechanism Deck Section-1 (MG-164MF-138) ..... 86 6-10. MD Mechanism Deck Section-2 (MG-164MF-138) ..... 87 6-11. MD Mechanism Deck Section-3 (MG-164MF-138) ..... 88 6-12. CD Mechanism Deck Section-1 (MG-398D-121)......... 89 6-13. CD Mechanism Deck Section-2 (MG-398D-121)......... 90 6-14. CD Mechanism Deck Section-3 (MG-398D-121)......... 91 7. ELECTRICAL PARTS LIST ............................... 92 TABLE OF CONTENTS