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HCD-GT22/GT44/GT55
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 4
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Case (Side-L), Case (Side-R) .......................................... 8
3-3. Case (Top) ....................................................................... 8
3-4. Lid (CD) .......................................................................... 9
3-5 CD Mechanism Deck
(CDM74KF-K6BD91UR-WOD), USB board ................ 9
3-6. Front Panel Block ............................................................ 10
3-7. Mecha Deck (CWN42FF609) ......................................... 10
3-8. Back Panel Block ............................................................ 11
3-9. MAIN Board.................................................................... 11
3-10. CD Board......................................................................... 12
3-11. DRIVER Board, SW Board............................................. 12
3-12. Optical Pick-up Block (KSM-213D)............................... 13
3-13. SENSOR Board ............................................................... 13
3-14. MOTOR (TB) Board ....................................................... 14
3-15. MOTOR (LD) Board ....................................................... 14
4. TEST MODE .............................................................. 15
5. MECHANICAL ADJUSTMENTS ....................... 19
6. ELECTRICAL ADJUSTMENTS ......................... 20
7. DIAGRAMS
7-1. Block Diagram – CD SERVO, USB Section – ............... 23
7-2. Block Diagram – MAIN Section –.................................. 24
7-3. Block Diagram – AMP Section – .................................... 25
7-4. Block Diagram – PANEL, POWER AMP Section –....... 26
7-5. Printed Wiring Board – CD Board – ............................... 28
7-6. Schematic Diagram – CD Board – .................................. 29
7-7. Printed Wiring Boards – CHANGER Section – .............. 30
7-8. Schematic Diagram – CHANGER Section – .................. 31
7-9. Printed Wiring Board – USB Board – ............................. 32
7-10. Schematic Diagram – USB Board – ................................ 33
7-11. Printed Wiring Board – TC Board – ................................ 34
7-12. Schematic Diagram – TC Board – .................................. 35
7-13. Printed Wiring Boards – MAIN Section – ...................... 37
7-14. Schematic Diagram – MAIN Section (1/4) – .................. 38
7-15. Schematic Diagram – MAIN Section (2/4) – .................. 39
7-16. Schematic Diagram – MAIN Section (3/4) – .................. 40
7-17. Schematic Diagram – MAIN Section (4/4) – .................. 41
7-18. Printed Wiring Board – MIC Board – ............................. 42
7-19. Schematic Diagram – MIC Board – ................................ 43
7-20. Printed Wiring Board
– AMP Board (GT22/GT55) – ........................................ 44
7-21. Schematic Diagram – AMP Board (GT22/GT55) –........ 45
7-22. Printed Wiring Board – AMP Board (GT44) – ............... 46
7-23. Schematic Diagram – AMP Board (GT44) – .................. 47
7-24. Printed Wiring Boards
– SUB WOOFER Section (GT44/GT55) – ..................... 48
7-25. Schematic Diagram
– SUB WOOFER Section (GT44/GT55) – ..................... 49
7-26. Printed Wiring Boards – PANEL Section –..................... 50
7-27. Schematic Diagram – PANEL Section – ......................... 51
7-28. Printed Wiring Boards – KEY Section – ......................... 52
7-29. Schematic Diagram – KEY Section – ............................. 53
7-30. Printed Wiring Board
– TRANS Board (GT22/GT55) –.................................... 54
7-31. Schematic Diagram
– TRANS Board (GT22/GT55) –.................................... 55
7-32. Printed Wiring Board – TRANS Board (GT44) – ........... 56
7-34. Schematic Diagram – TRANS Board (GT44) – ............. 57
8. EXPLODED VIEWS
8-1. Case Section .................................................................... 69
8-2. KEY TOP Board Section................................................. 70
8-3. TC Mecha Deck Section.................................................. 71
8-4. PANEL Board Section ..................................................... 72
8-5. Front Panel Section ......................................................... 73
8-6. MAIN Board Section....................................................... 74
8-7. POWER Board, SUB WOOFER Board Section ............. 75
8-8. Chassis Section................................................................ 76
8-9. CD Mechanism Deck Section-1
(CDM74KF-K6BD91UR-WOD) .................................... 77
8-10. CD Mechanism Deck Section-2
(CDM74KF-K6BD91UR-WOD) .................................... 78
9. ELECTRICAL PARTS LIST................................ 79
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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