MHC-V77DW
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 10
2-2. Rear Cover Assy ............................................................. 11
2-3. Side-L Panel .................................................................... 11
2-4. Panel Loading Section .................................................... 12
2-5. Top Panel Section ........................................................... 13
2-6. Side-R Panel ................................................................... 14
2-7. CDM Section .................................................................. 15
2-8. CDM90-DVBU204//M ................................................... 15
2-9. Service, Optical Device (7G), Flexible Flat Cable ......... 16
2-10. Back Panel Section ......................................................... 17
2-11. 2CH DAMP Board .......................................................... 18
2-12. BENTEN-MOTHERBOARD Board, 89G Board .......... 19
2-13. REGULATOR, SWITCHING (SSN-161AD) ................ 20
2-14. Front Panel Section ......................................................... 21
2-15. Loudspeaker (260mm)-180-11 (Woofer) (SP5) .............. 22
2-16. Loudspeaker (120mm)-181-11 (Mid: L-CH) (SP1),
Loudspeaker (120mm)-181-11 (Mid: R-CH) (SP3) ....... 22
3.
TEST MODE
............................................................ 23
4.
ELECTRICAL CHECK
......................................... 25
5. TROUBLESHOOTING
.......................................... 27
6. DIAGRAMS
6-1. Block Diagram - RS SERVO, USB Section - ................. 31
6-2. Block Diagram - MEMORY Section - ............................ 32
6-3. Block Diagram - MAIN Section - ................................... 33
6-4. Block Diagram - AMP Section - ..................................... 34
6-5. Block
Diagram
- PANEL, POWER SUPPLY Section - ........................... 35
6-6. Printed Wiring Board - BENTEN-MOTHERBOARD
Board (Component Side) - ..............................................
37
6-7. Printed Wiring Board - BENTEN-MOTHERBOARD
Board (Conductor Side) - ................................................
38
6-8. Schematic
Diagram
- BENTEN-MOTHERBOARD Boa
rd (1/11) -
..............
39
6-9. Schematic
Diagram
- BENTEN-MOTHERBOARD Boa
rd (2/11) -
..............
40
6-10. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (3/11) -
..............
41
6-11. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (4/11) -
..............
42
6-12. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (5/11) -
..............
43
6-13. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (6/11) -
..............
44
6-14. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (7/11) -
..............
45
6-15. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (8/11) -
..............
46
6-16. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (9/11) -
..............
47
6-17. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (10/11) -
............
48
6-18. Schematic Diagram
- BENTEN-MOTHERBOARD Boa
rd (11/11) -
.............
49
6-19. Printed Wiring Board
- SENSOR Board (Component Side) - ...........................
50
6-20. Printed Wiring Board
- SENSOR Board (Conductor Side) - .............................
51
TABLE OF CONTENTS
6-21. Schematic Diagram - SENSOR Boa
rd (1/3) -
................
52
6-22. Schematic Diagram - SENSOR Boa
rd (2/3) -
................
53
6-23. Schematic Diagram - SENSOR Boa
rd (3/3) -
................
54
6-24. Printed Wiring Board - 2CH DAMP Board - ..................
55
6-25. Printed Wiring Board - 89G Board - ...............................
56
6-26. Schematic Diagram - 89G Boa
rd (1/3) -
.........................
57
6-27. Schematic Diagram - 89G Boa
rd (2/3) -
.........................
58
6-28. Schematic Diagram - 89G Boa
rd (3/3) -
.........................
59
6-29. Printed Wiring Board - LCD Board - ..............................
60
6-30. Schematic Diagram - LCD Boa
rd -
................................
61
6-31. Printed Wiring Board - MIC Board - ..............................
62
6-32. Schematic Diagram - MIC Boa
rd -
.................................
63
6-33. Printed Wiring Board - DUMMY Board - ......................
64
6-34. Schematic Diagram - DUMMY Boa
rd -
.........................
64
6-35. Printed Wiring Board - FM-TUNER Board - .................
65
6-36. Schematic Diagram - FM-TUNER Boa
rd -
....................
66
6-37. Printed Wiring Board - POWER BUTTON Board - ......
66
6-38. Schematic Diagram - POWER BUTTON Boa
rd -
.........
66
6-39. Printed Wiring Board - USB Board - ..............................
67
6-40. Schematic Diagram - USB Boa
rd -
.................................
67
6-41. Printed Wiring Board - IR Board - ..................................
67
6-42. Schematic Diagram - IR Boa
rd -
....................................
67
6-43. Printed Wiring Board - SPK PARTY LED Board - ........
68
6-44. Schematic Diagram - SPK PARTY LED Boa
rd -
...........
68
6-45. Printed Wiring Board - PARTY LED Board - ................
68
6-46. Schematic Diagram - PARTY LED Boa
rd -
...................
68
6-47. Printed Wiring Board - SPK LED Board - .....................
69
6-48. Schematic Diagram - SPK LED Boa
rd -
........................
69
7.
EXPLODED VIEWS
7-1. Cover, Rear, Panel Side, L .............................................. 102
7-2. Panel Loading Section .................................................... 103
7-3. Back Panel Section ......................................................... 104
7-4. 2CH DAMP Board Section ............................................. 105
7-5. BENTEN-MOTHERBOARD
Board,
89G Board Section .......................................................... 106
7-6. Chassis
Section
...............................................................
107
7-7. Front Panel Section ......................................................... 108
7-8. Speaker Cabinet Section ................................................. 109
7-9. Top Panel Section ........................................................... 110
7-10. Side-R Panel Section ...................................................... 111
7-11. CDM BLOCK Section .................................................... 112
7-12. DVD Mechanism Section
(CDM90-DVBU204//M) ................................................ 113
8.
ELECTRICAL PARTS LIST
.............................. 114
Accessories are listed in the last part of the electrical parts list.