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MEX-1HD
1. SERVICING NOTES ................................................ 5
2. GENERAL
Location of Controls....................................................... 7
3. DISASSEMBLY
3-1. Disassembly Flow........................................................... 10
3-2. Cove r........................................................................\
....... 11
3-3. Base Panel Assy.............................................................. 11
3-4. Sub Panel (CD) Assy...................................................... 12
3-5. Mechanism Deck (MG-550D-156)................................ 12
3-6. Motor Block Assy, Cam Block Assy.............................. 13
3-7. Motor Assy (Front Panel Open/Close) (M601), SWITCH Board ............................................................... 13
3-8. MAIN Board, PO WER Board........................................ 14
3-9. Hard Disk Drive (2.5 inch) Unit..................................... 15
3-10. SUB Board ...................................................................... 15
3-11. Heat Sink, DC Fan (M501) ............................................. 16
3-12. Belt (L), LE Motor Assy (Tray Open/Close) (M103) .... 16
3-13. Tray (UD) Assy............................................................... 17
3-14. OP Assy (CDM-3021EBG) ............................................ 17
3-15. SERVO Board................................................................. 18
4. ASSEMBLY
4-1. Assembly Flow................................................................ 19
4-2. Motor Block Assy........................................................... 19
4-3. Cam Block Assy.............................................................. 20
4-4. Phase Alignment of Motor Block Assy and Cam Block Assy.............................................................. 20
5. TEST MODE .............................................................. 21
6. DIAGRAMS
6-1. Block Diagram
- SERVO, HD/MS/USB INTERF ACE Section - .......... 27
6-2. Block Diagram - CPU, DISPLAY Section -................ 28
6-3. Block Diagram - AUDIO, SYSTEM Section -............ 29
6-4. Block Diagram - POWER SUPPLY Section -............. 30
6-5. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 31
6-6. Printed Wiring Board - SERVO Board (Side A) -....... 32
6-7. Printed Wiring Board - SERVO Board (Side B) -....... 33
6-8. Schematic Diagram - SERVO Board (1/3) -................ 34
6-9. Schematic Diagram - SERVO Board (2/3) -................ 35
6-10. Schematic Diagram - SERVO Board (3/3) -................ 36
6-11. Printed Wiring Board - MAIN Board (Side A) -......... 38
6-12. Printed Wiring Board - MAIN Board (Side B) -......... 39
6-13. Schematic Diagram - MAIN Board (1/9) -................... 40
6-14. Schematic Diagram - MAIN Board (2/9) -................... 41
6-15. Schematic Diagram - MAIN Board (3/9) -................... 42
6-16. Schematic Diagram - MAIN Board (4/9) -................... 43
6-17. Schematic Diagram - MAIN Board (5/9) -................... 44
6-18. Schematic Diagram - MAIN Board (6/9) -................... 45
6-19. Schematic Diagram - MAIN Board (7/9) -................... 46
6-20. Schematic Diagram - MAIN Board (8/9) -................... 47
6-21. Schematic Diagram - MAIN Board (9/9) -................... 48
6-22. Schematic Diagram - SUB Board (1/5) -...................... 49
6-23. Schematic Diagram - SUB (2/5)/SWITCH Boards -.... 50
6-24. Schematic Diagram - SUB Board (3/5) -...................... 51
6-25. Schematic Diagram - SUB Board (4/5) -...................... 52
6-26. Schematic Diagram - SUB Board (5/5) -...................... 53
6-27. Printed Wiring Boards - SUB (Component Side)/Switch Boards -................... 54 6-28. Printed Wiring Board
- SUB Board (Conductor Side) -................................... 55
6-29. Printed Wiring Board - POWER Board -..................... 56
6-30. Schematic Diagram - POWER Board -........................ 57
6-31. Printed Wiring Board - DISPLAY Board -.................. 58
6-32. Schematic Diagram - DISPLAY Board -..................... 59
6-33. IC Pin Function Description........................................... 69
7. EXPLODED VIEWS
7-1. Cover Section................................................................. 97
7-2. Front P anel Section........................................................ 98
7-3. ARM Section .................................................................. 99
7-4. Hard Disk, PO WER Board Section............................... 100
7-5. MAIN Board Section..................................................... 101
7-6. Chassis Section .............................................................. 102
7-7. SUB Board Section........................................................ 103
7-8. Mechanism Deck Section (MG-550D-156)..................104
8. ELECTRICAL PARTS LIST .............................. 106
TABLE OF CONTENTS
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