Read Sony HCD-GNX88 / MHC-GNX88 Service Manual online
3
HCD-GNX88
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
Location of Controls ........................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Side Panel, Top Case .......................................................
8
3-3.
Loading Panel Assy .........................................................
8
3-4.
Front Panel Assy ..............................................................
9
3-5.
Tuner Pack .......................................................................
9
3-6.
Tape Mechanism Deck, Mic Board ................................. 10
3-7.
Panel Board, CD-SW Board ............................................ 10
3-8.
CD Mechanism Deck ...................................................... 11
3-9.
CDG Board ...................................................................... 11
3-10. Back Panel ....................................................................... 12
3-11. Primary Board ................................................................. 12
3-12. Power AMP PC Board Assy, Main Board ....................... 13
3-13. Surround Board, PA Board .............................................. 13
3-14. Power Transformer (T1200) ............................................ 14
3-15. Driver Board, SW Board ................................................. 14
3-16. BD84 Board ..................................................................... 15
3-17. Sensor Board ................................................................... 15
3-18. Motor (TB) Board ........................................................... 16
3-19. Motor (LD) Board ........................................................... 16
3-11. Primary Board ................................................................. 12
3-12. Power AMP PC Board Assy, Main Board ....................... 13
3-13. Surround Board, PA Board .............................................. 13
3-14. Power Transformer (T1200) ............................................ 14
3-15. Driver Board, SW Board ................................................. 14
3-16. BD84 Board ..................................................................... 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
CD Section ...................................................................... 22
7.
DIAGRAMS
7-1.
Circuit Board Location .................................................... 26
7-2.
Block Diagram – CDG Section – ................................... 27
7-3.
Block Diagram – Tape Section – .................................... 28
7-4.
Block Diagram – Main Section – ................................... 29
7-5.
Block Diagram – AMP Section – ................................... 30
7-6.
Block Diagram – Display Section – ............................... 31
7-7.
Printed Wiring Board – BD84 Board – .......................... 32
7-8.
Schematic Diagram – BD84 Board – ............................. 33
7-9.
Printed Wiring Board – CD Mechanism Board – ........... 34
7-10. Schematic Diagram – CD Mechanism Board – ............. 35
7-11. Printed Wiring Boards – Main Board – .......................... 36
7-12. Schematic Diagram – Main Board (1/3) – ..................... 37
7-13. Schematic Diagram – Main Board (2/3) – ..................... 38
7-14. Schematic Diagram – Main Board (3/3) – ..................... 39
7-15. Printed Wiring Boards – Panel Board – ......................... 40
7-16. Schematic Diagram – Panel Board – ............................... 41
7-17. Printed Wiring Board – CD-SW, Jog, Mic Boards – ...... 42
7-18. Schematic Diagram – CD-SW, Jog, Mic Board – .......... 43
7-19. Printed Wiring Board – PA Board – ............................... 44
7-20. Schematic Diagram – PA Board – .................................. 45
7-21. Printed Wiring Board – Surround Board – ..................... 46
7-22. Schematic Diagram –Surround Board – ......................... 47
7-23. Printed Wiring Board – CDG Boards – .......................... 48
7-24. Schematic Diagram – CDG Boards – ............................. 49
7-25. Printed Wiring Board – Trans, Primary Boards – .......... 50
7-26. Schematic Diagram – Trans, Primary Boards – ............. 51
7-27. IC Pin Function Description ............................................ 54
7-11. Printed Wiring Boards – Main Board – .......................... 36
7-12. Schematic Diagram – Main Board (1/3) – ..................... 37
7-13. Schematic Diagram – Main Board (2/3) – ..................... 38
7-14. Schematic Diagram – Main Board (3/3) – ..................... 39
7-15. Printed Wiring Boards – Panel Board – ......................... 40
7-16. Schematic Diagram – Panel Board – ............................... 41
7-17. Printed Wiring Board – CD-SW, Jog, Mic Boards – ...... 42
7-18. Schematic Diagram – CD-SW, Jog, Mic Board – .......... 43
7-19. Printed Wiring Board – PA Board – ............................... 44
7-20. Schematic Diagram – PA Board – .................................. 45
7-21. Printed Wiring Board – Surround Board – ..................... 46
7-22. Schematic Diagram –Surround Board – ......................... 47
7-23. Printed Wiring Board – CDG Boards – .......................... 48
7-24. Schematic Diagram – CDG Boards – ............................. 49
7-25. Printed Wiring Board – Trans, Primary Boards – .......... 50
7-26. Schematic Diagram – Trans, Primary Boards – ............. 51
7-27. IC Pin Function Description ............................................ 54
8.
EXPLODED VIEWS
8-1.
Case (Top), Rear Panel Section ....................................... 60
8-2.
Front Panel Section ......................................................... 61
8-3.
Chassis Section ................................................................ 62
8-4.
CD Mechanism Deck Section-1
(CDM74-F1BD84) .......................................................... 63
8-5. CD Mechanism Deck Section-2
(CDM74-F1BD84) .......................................................... 64
9.
ELECTRICAL PARTS LIST
................................ 65
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