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3
HCD-GN880
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
Location of Controls ........................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Case .................................................................................
8
3-3.
Loading Panel Assy .........................................................
8
3-4.
Front Panel Assy ..............................................................
9
3-5.
CD Mechanism Deck (CDM74-F1BD81) ......................
9
3-6.
Tape Mechanism Deck, Game Board .............................. 10
3-7.
CD Switch Board, Panel Board ....................................... 10
3-8.
Switch Board ................................................................... 11
3-9.
Tuner Pack ....................................................................... 11
3-10. Primary Board ................................................................. 12
3-11. Rear Panel ........................................................................ 12
3-12. Main Board ...................................................................... 13
3-13. Surround Board, PA Board .............................................. 13
3-14. Power Transformer .......................................................... 14
3-15. Driver Board, SW Board ................................................. 14
3-16. BD Board, Optical Pick-Up (KSM-215DCP/C2NP) ...... 15
3-17. Sensor Board ................................................................... 15
3-18. Motor (TB) Board ........................................................... 16
3-19. Motor (LD) Board ........................................................... 16
4.
TEST MODE
.............................................................. 17
5.
MECHANICAL ADJUSTMENTS
....................... 21
6.
ELECTRICAL ADJUSTMENTS
Deck section .................................................................... 21
CD Section ...................................................................... 22
7.
DIAGRAMS
7-1.
Circuit Board Location .................................................... 26
7-2.
Block Diagram – CD Section – ...................................... 28
7-3.
Block Diagram – Tuner/Tape Deck Section – ................ 29
7-4.
Block Diagram – Main Section – ................................... 30
7-5.
Block Diagram – Display/Power Section – .................... 31
7-6.
Printed Wiring Board – BD Board – .............................. 32
7-7.
Schematic Diagram – BD Board – ................................. 33
7-8.
Printed Wiring Board – CD Mechanism Board – ........... 34
7-9.
Schematic Diagram – CD Mechanism Board – ............. 35
7-10. Printed Wiring Boards – Main Board – .......................... 36
7-11. Schematic Diagram – Main Board (1/3) – ..................... 37
7-12. Schematic Diagram – Main Board (2/3) – ..................... 38
7-13. Schematic Diagram – Main Board (3/3) – ..................... 39
7-14. Printed Wiring Boards
– Game, CD Switch Board – ........................................... 40
7-15. Schematic Diagram
– Game, CD Switch Board – ........................................... 41
7-16. Printed Wiring Board – PA Board – ............................... 42
7-17. Schematic Diagram – PA Board – .................................. 43
7-18. Printed Wiring Board – Surround Board – ..................... 44
7-19. Schematic Diagram – Surround Board – ........................ 45
7-20. Schematic Diagram –Panel Board (1/2) – ...................... 46
7-21. Schematic Diagram –Panel Board (2/2) – ...................... 47
7-22. Printed Wiring Board – Panel Board – ........................... 48
7-23. Printed Wiring Boards – Primary Board – ..................... 49
7-24. Schematic Diagram – Primary Board – .......................... 50
7-25. IC Block Diagram ........................................................... 50
7-26. IC Pin Function Description ............................................ 52
8.
EXPLODED VIEWS
8-1.
Case, Rear Panel Section ................................................. 58
8-2.
Front Panel Section ......................................................... 59
8-3.
Chassis Section ................................................................ 60
8-4.
CD Mechanism Deck Section-1
(CDM74-F1BD81) .......................................................... 61
8-5. CD Mechanism Deck Section-2
(CDM74-F1BD81) .......................................................... 62
9.
ELECTRICAL PARTS LIST
................................ 63