Read Sony HCD-EC50DC / MHC-EC50DC Service Manual online
2
HCD-EC50DC
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Side Panel (R), Side Panel (L) .........................................
8
3-3.
Top Panel Section ............................................................
8
3-4.
Mechanical Deck (Tape) ..................................................
9
3-5.
Belt (1), Belt (2) ..............................................................
9
3-6.
Front Panel Section ......................................................... 10
3-7.
PANEL Board .................................................................. 10
3-8.
JACK Board ..................................................................... 11
3-9.
DC Fan ............................................................................ 11
3-10. MAIN Board .................................................................... 12
3-11. CD Mechanism Deck Section (BU-K6BD83S2) ............ 13
3-12. Optical Pick-Up (KSM-213DCP), BD83S Board ........... 14
3-13. Belt (DLM3A) ................................................................. 15
3-14. DC JACK Board .............................................................. 15
3-15. Chassis (MAIN MOLD) .................................................. 16
3-16. PT Board, P-AMP Board, P-AMP-L Board,
3-11. CD Mechanism Deck Section (BU-K6BD83S2) ............ 13
3-12. Optical Pick-Up (KSM-213DCP), BD83S Board ........... 14
3-13. Belt (DLM3A) ................................................................. 15
3-14. DC JACK Board .............................................................. 15
3-15. Chassis (MAIN MOLD) .................................................. 16
3-16. PT Board, P-AMP Board, P-AMP-L Board,
TRANSISTOR Board ...................................................... 16
4.
TEST MODE
............................................................... 17
5.
MECHANICAL ADJUSTMENTS
......................... 18
6.
ELECTRICAL ADJUSTMENTS
.......................... 18
7.
DIAGRAMS
7-1.
Block Diagram — BD/DRIVER Section — .................. 24
7-2.
Block Diagram — TUNER Section — .......................... 25
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
7-3.
Block Diagram — MAIN Section — ............................. 26
7-4.
Printed Wiring Board — BD83S Board — .................... 27
7-5.
Schematic Diagram — BD83S Board — ....................... 28
7-6.
Printed Wiring Boards — MAIN Board,
TRANSISTOR Board, JACK Board — .......................... 29
TRANSISTOR Board, JACK Board — .......................... 29
7-7.
Schematic Diagram
— MAIN Board (1/3), TRANSISTOR Board — ........... 30
— MAIN Board (1/3), TRANSISTOR Board — ........... 30
7-8.
Schematic Diagram
— MAIN Board (2/3), JACK Board — .......................... 31
— MAIN Board (2/3), JACK Board — .......................... 31
7-9.
Schematic Diagram — MAIN Board (3/3) — ............... 32
7-10. Printed Wiring Board — P-AMP Board — .................... 33
7-11. Schematic Diagram — P-AMP Board — ...................... 34
7-12. Printed Wiring Boards — P-AMP-L Board,
7-11. Schematic Diagram — P-AMP Board — ...................... 34
7-12. Printed Wiring Boards — P-AMP-L Board,
GUARD (B) Board, DC JACK Board — ........................ 35
7-13. Schematic Diagram — P-AMP-L Board,
GUARD (B) Board, DC JACK Board — ........................ 36
7-14. Printed Wiring Board — PANEL Board — ................... 37
7-15. Schematic Diagram — PANEL Board — ...................... 38
7-16. Printed Wiring Board — PT Board — ........................... 39
7-17. Schematic Diagram — PT Board — .............................. 39
7-15. Schematic Diagram — PANEL Board — ...................... 38
7-16. Printed Wiring Board — PT Board — ........................... 39
7-17. Schematic Diagram — PT Board — .............................. 39
8.
EXPLODED VIEWS
8-1.
Overall Section ................................................................ 47
8-2.
Front Panel Section ......................................................... 48
8-3.
Chassis Section ................................................................ 49
8-4.
Top Section ...................................................................... 50
8-5.
CD Section And Base Unit (BU-K6BD83S2-WOD)
Section ............................................................................. 51
Section ............................................................................. 51
9.
ELECTRICAL PARTS LIST
.................................. 52
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