Read Sony HCD-EC55 / HCD-EC77 / HCD-GX99 / MHC-EC55 / MHC-EC77 / MHC-GX99 Service Manual online
3
HCD-EC55/EC77/GX99
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
...................................................................
6
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
8
3-2.
Side Panel (R), Side Panel (L) .........................................
9
3-3.
Top Panel Assy (Except US, CND) ................................. 10
3-4.
Top Panel (US, CND) ...................................................... 10
3-5.
Front Panel Assy .............................................................. 11
3-6.
Mechanical Deck (Except US, CND) .............................. 12
3-7.
Belt (MAIN), Belt (R/F) (Except US, CND) .................. 12
3-8.
KEY-LEFT Board ............................................................ 13
3-9.
KEY-RIGHT Board, KEY-CD Board, PANEL Board .... 13
3-10. JACK Board ..................................................................... 14
3-11. MAIN Board .................................................................... 15
3-12. CD Mechanical ................................................................ 16
3-13. Optical Pick-up (KSM-213DCP), BD90 Board .............. 17
3-14. Belt (DLM3A) ................................................................. 18
3-15. Chassis ............................................................................. 18
3-16. PT Board (Except EC55:US, CND),
3-11. MAIN Board .................................................................... 15
3-12. CD Mechanical ................................................................ 16
3-13. Optical Pick-up (KSM-213DCP), BD90 Board .............. 17
3-14. Belt (DLM3A) ................................................................. 18
3-15. Chassis ............................................................................. 18
3-16. PT Board (Except EC55:US, CND),
PT (U) Board (EC55:US, CND), Power Transformer ..... 19
3-17. LOW-AMP Board, HI-AMP Board (EC77/GX99) ......... 19
3-18. HI-AMP Board (EC55) ................................................... 20
3-19. DC Fan ............................................................................ 20
3-18. HI-AMP Board (EC55) ................................................... 20
3-19. DC Fan ............................................................................ 20
4.
TEST MODE
............................................................... 21
5.
MECHANICAL ADJUSTMENTS
......................... 25
6.
ELECTRICAL ADJUSTMENTS
.......................... 25
7.
DIAGRAMS
7-1.
Block Diagram — BD/DRIVER Section — .................. 30
7-2.
Block Diagram — TUNER Section — .......................... 31
7-3.
Block Diagram — MAIN Section — ............................. 32
7-4.
Printed Wiring Board — BD90 Board — ...................... 33
7-5.
Schematic Diagram — BD90 Board — ......................... 34
7-6.
Printed Wiring Boards — MAIN Section — ................. 35
7-7.
Schematic Diagram — MAIN Section (1/2) — ............. 36
7-8.
Schematic Diagram — MAIN Section (2/2) — ............. 37
7-9.
Printed Wiring Board — PANEL Board — ................... 38
7-10. Schematic Diagram — PANEL Board — ...................... 39
7-11. Printed Wiring Boards — KEY Section — .................... 40
7-12. Schematic Diagram — KEY Section — ........................ 40
7-13. Printed Wiring Board — HI-AMP Board — .................. 41
7-14. Schematic Diagram — HI-AMP Board — .................... 42
7-15. Printed Wiring Board
7-11. Printed Wiring Boards — KEY Section — .................... 40
7-12. Schematic Diagram — KEY Section — ........................ 40
7-13. Printed Wiring Board — HI-AMP Board — .................. 41
7-14. Schematic Diagram — HI-AMP Board — .................... 42
7-15. Printed Wiring Board
— LOW-AMP Board (EC77/GX99) — .......................... 43
7-16. Schematic Diagram
— LOW-AMP Board (EC77/GX99) — .......................... 44
7-17. Printed Wiring Boards
— DECK Section (Except US,CND) — ......................... 45
7-18. Schematic Diagram
— DECK Section (Except US,CND) — ......................... 45
7-19. Printed Wiring Board
— PT Board (Except EC55: US,CND) — ...................... 46
7-20. Schematic Diagram
— PT Board (Except EC55: US,CND) — ...................... 46
7-21. Printed Wiring Board
— PT (U) Board (EC55: US,CND) — ............................ 47
7-22. Schematic Diagram
— PT (U) Board (EC55: US,CND) — ............................ 47
8.
EXPLODED VIEWS
8-1.
Overall Section ................................................................ 57
8-2.
Front Panel Section ......................................................... 58
8-3.
Chassis Section (EC77/GX99) ........................................ 59
8-4.
Chassis Section (EC55) ................................................... 60
8-5.
Top Section (Except US, CND) ....................................... 61
8-6.
CD Mechanism Deck Section ......................................... 62
9.
ELECTRICAL PARTS LIST
.................................. 63
Ver. 1.2
Click on the first or last page to see other HCD-EC55 / HCD-EC77 / HCD-GX99 / MHC-EC55 / MHC-EC77 / MHC-GX99 service manuals if exist.