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MHC-V44D
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 10
2-2. Side (L) Panel, Side (R) Panel ........................................ 11
2-3. Top Panel Section ........................................................... 11
2-4. Loading Panel Assy ........................................................ 12
2-5. CDM Section .................................................................. 13
2-6. Back Panel Section ......................................................... 14
2-7. DAMP Board .................................................................. 15
2-8. Bracket Chassis ............................................................... 16
2-9. MOTHERBOARD Board ............................................... 17
2-10. SMPS Board ................................................................... 18
2-11. Chassis ............................................................................ 18
2-12. Front Panel Section ......................................................... 19
2-13. Loudspeaker (200 mm)-157-11 ...................................... 20
2-14. Loudspeaker (69 mm)-155-11 ........................................ 21
2-15. Service Optical Device (7G), Wire (Flat Type) .............. 22
3.
TEST MODE
............................................................ 23
4.
ELECTRICAL CHECK
......................................... 25
5. TROUBLESHOOTING
.......................................... 26
6. DIAGRAMS
............................................................... 32
6-1. Block Diagram - CD/USB/HDMI Section - ................... 33
6-2. Block Diagram - MAIN Section - ................................... 34
6-3. Block Diagram - DAMP Section - .................................. 35
6-4. Block
Diagram
- PANEL/POWER SUPPLY Section - ............................ 36
6-5. Printed Wiring Board - MOTHERBOARD Board - ....... 38
6-6. Printed Wiring Board -
DAMP Board - .......................... 39
6-7. Printed Wiring Board - STR Board - .............................. 40
6-8. Schematic Diagram - STR Board (1/2) - ........................ 41
6-9. Schematic Diagram - STR Board (2/2) - ........................ 42
6-10. Printed Wiring Board -
SMPS Board - ........................... 43
6-11. Printed Wiring Board -
MIC Board - .............................. 44
6-12. Schematic Diagram -
MIC Board - ................................. 44
6-13. Printed Wiring Board -
PARTY LED Board - ................ 45
6-14. Schematic Diagram -
PARTY LED Board - ................... 45
6-15. Printed Wiring Board -
IR Board - ................................. 45
6-16. Schematic Diagram -
IR Board - .................................... 45
6-17. Printed Wiring Board -
SPEAKER LED_R Board - ...... 46
6-18. Schematic Diagram -
SPEAKER LED_R Board - ......... 46
6-19. Printed Wiring Board -
SPEAKER LED_L Board -....... 46
6-20. Schematic Diagram -
SPEAKER LED_L Board - ......... 46
TABLE OF CONTENTS
7.
EXPLODED VIEWS
7-1. Side Panel Section .......................................................... 49
7-2. Loading Panel Section .................................................... 50
7-3. Back Panel Section ......................................................... 51
7-4. MOTHERBOARD Board Section .................................. 52
7-5. Chassis
Section
............................................................... 53
7-6. Front Panel Section ......................................................... 54
7-7. Speaker Cabinet Section ................................................. 55
7-8. Top Panel Section ........................................................... 56
7-9. CDM
Section
.................................................................. 57
7-10. CD Mechanism Section
(CDM90-DVBU204//C) ................................................. 58
8.
ELECTRICAL PARTS LIST
.............................. 59
Accessories are listed in the last part of the electrical parts
list.