Table Of Contents - Sony HCD-GNX780 Service Manual

1. SERVICING NOTES
2. GENERAL
Locating the Controls ...................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Side Panel, Top Case ....................................................... 8
3-3. Loading Panel .................................................................. 8
3-4. Front Panel Assy .............................................................. 9
3-5. Tuner Pack ....................................................................... 9
3-6. Tape Mechanism Deck, MIC Board ................................ 10
3-7. CD-SW Board, PANEL Board ........................................ 10
3-8. FUNCTION Board, JOG Board ...................................... 11
3-9. CD Mechanism Deck ...................................................... 11
3-10. Back Panel ....................................................................... 12
3-11. PRIMARY Board, EFFECTOR 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. CDG Board, 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
6. ELECTRICAL ADJUSTMENTS
Deck section .................................................................... 21
CDG Section .................................................................... 22

TABLE OF CONTENTS

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....................... 21
HCD-GNX780/GNX880
7. DIAGRAMS
7-1. Block Diagram - CDG Section - ................................... 27
7-2. Block Diagram - Tape/Tuner Section - ......................... 28
7-3. Block Diagram - Main Section - ................................... 29
7-4. Block Diagram - AMP Section - ................................... 30
7-5. Block Diagram - Display/Power Section - .................... 31
7-6. Printed Wiring Board - BD84 Board - .......................... 32
7-7. Schematic Diagram - BD84 Board - ............................. 33
7-8. Printed Wiring Boards - CD Mechanism Sectiom - ...... 34
7-9. Schematic Diagram - CD Mechanism Section - ........... 35
7-10. Printed Wiring Board - 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 Board - PANEL Board - ....................... 40
7-15. Schematic Diagram - PANEL Board - ........................... 41
7-16. Printed Wiring Boards
- CD-SW, JOG, MIC and FUNCTION Boards - ........... 42
7-17. Schematic Diagram
- CD-SW, JOG, MIC and FUNCTION Boards - ........... 43
7-18. Printed Wiring Board - PA Board - ............................... 44
7-19. Schematic Diagram - PA Board - .................................. 45
7-20. Printed Wiring Board - SURROUND Board - .............. 46
7-21. Schematic Diagram - SURROUND Board - ................. 47
7-22. Printed Wiring Board - EFFECTOR Board - ................ 48
7-23. Schematic Diagram - EFFECTOR Board - ................... 49
7-24. Printed Wiring Board - CDG Board - ........................... 50
7-25. Schematic Diagram - CDG Board - .............................. 51
7-26. Printed Wiring Boards - Power Section - ...................... 52
7-27. Schematic Diagram - Power Section - .......................... 53
7-28. IC Pin Function Description ............................................ 58
8. EXPLODED VIEWS
8-1. Case (Top), Back Panel Section ...................................... 64
8-2. Front Panel Section-1 ...................................................... 65
8-3. Front Panel Section-2 ...................................................... 66
8-4. Chassis Section ................................................................ 67
8-5. CD Mechanism Deck Section-1
(CDM74KF-F1BD84) ..................................................... 68
8-6. CD Mechanism Deck Section-2
(CDM74KF-F1BD84) ..................................................... 69
9. ELECTRICAL PARTS LIST
................................ 70
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