HCD-GN77D
3
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 4
2. GENERAL
Location of Controls ....................................................... 5
3. DISASSEMBLY
3-1. Case ................................................................................. 8
3-2. Loading (Panel) ............................................................... 8
3-3. Front Panel Assy ............................................................. 9
3-4. Tuner Pack, Sub Trans Board ......................................... 9
3-5. DVD Mechanism Deck ................................................... 10
3-6. Game In Board, Tape Mechanism Deck ......................... 10
3-7. CD Switch Board, Display Board .................................. 11
3-8. Volume Board .................................................................. 11
3-9. Back Panel, Subwoofer Board ........................................ 12
3-10. Main Board ...................................................................... 12
3-11. Power Amp Board ........................................................... 13
3-12. Video Board, DMB03 Board, Regulator Board ............. 13
3-13. SW Board, Driver Board ................................................ 14
3-14. RF Board, Pick-up Unit .................................................. 14
3-15. Sensor Board ................................................................... 15
3-16. Motor (TB) Board ........................................................... 15
3-17. Motor (LD) Board ........................................................... 16
4. TEST MODE .............................................................. 17
5. MECHANICAL ADJUSTMENTS ....................... 19
6. ELECTRICAL ADJUSTMENTS
Deck section .................................................................... 19
Video Section .................................................................. 22
7. DIAGRAMS
7-1. Circuit Board Location ................................................... 24
7-2. Block Diagram – DVD DSP (1/2) Section – ................ 26
Block Diagram – DVD DSP (2/2) Section – ................ 27
Block Diagram – Tuner/Tape Deck Section – ............... 28
Block Diagram – Main Section – .................................. 29
Block Diagram – Amp Section – ................................... 30
Block Diagram – Display Section – .............................. 31
7-3. Printed Wiring Board – RF Board – .............................. 32
7-4. Schematic Diagram – RF Board – ................................. 33
7-5. Printed Wiring Board – DVD Mechanism Board – ...... 34
7-6. Schematic Diagram – DVD Mechanism Board – ......... 35
7-7. Printed Wiring Board – DMB03 Board (Side A)– ........ 36
Printed Wiring Board – DMB03 Board (Side B)– ........ 37
7-8. Schematic Diagram – DMB03 Board (1/8) –................ 38
7-9. Schematic Diagram – DMB03 Board (2/8) –................ 39
7-10. Schematic Diagram – DMB03 Board (3/8) – ................ 40
7-11. Schematic Diagram – DMB03 Board (4/8) – ................ 41
7-12. Schematic Diagram – DMB03 Board (5/8) – ................ 42
7-13. Schematic Diagram – DMB03 Board (6/8) – ................ 43
7-14. Schematic Diagram – DMB03 Board (7/8) – ................ 44
7-15. Schematic Diagram – DMB03 Board (8/8) – ................ 45
7-16. Printed Wiring Board – Video, Regulator Board – ....... 46
7-17. Schematic Diagram – Video, Regulator Board – .......... 47
7-18. Printed Wiring Boards – Main Board – ......................... 48
7-19. Schematic Diagram – Main Board (1/4) – .................... 49
7-20. Schematic Diagram – Main Board (2/4) – .................... 50
7-21. Schematic Diagram – Main Board (3/4) – .................... 51
7-22. Schematic Diagram – Main Board (4/4) – .................... 52
7-23. Printed Wiring Boards
– Game In, CD Switch Board – ...................................... 53
7-24. Schematic Diagram
– Game In, CD Switch Board – ...................................... 54
7-25. Printed Wiring Board – Display Board – ...................... 55
7-26. Schematic Diagram – Display Board – ......................... 56
7-27. Printed Wiring Board – Power Amp Board – ................ 57
7-28. Schematic Diagram – Power Amp Board – .................. 58
7-29. Printed Wiring Board – Surround Board – .................... 59
7-30. Schematic Diagram – Surround Board – ....................... 60
7-31. Printed Wiring Boards – Trans Board – ........................ 61
7-32. Schematic Diagram – Trans Board – ............................. 62
7-33. IC Block Diagram ........................................................... 63
7-34. IC Pin Function Description ........................................... 68
8. EXPLODED VIEWS
8-1. Case, Back Panel DMB03 Board Section ...................... 79
8-2. Front Panel Section ......................................................... 80
8-3. Chassis Section ............................................................... 81
8-4. DVD Mechanism Deck Section-1
(CDM74D-DVBU43) ..................................................... 82
8-5. DVD Mechanism Deck Section-2
(CDM74D-DVBU43) ..................................................... 83
9. ELECTRICAL PARTS LIST .................................. 84
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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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