Read Sony CX-LDB30 / CX-LDB50 / XR-DB30 / XR-DB50 Service Manual online
3
CX-LDB30/LDB50
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Side Panel (L)(R), Top Panel, Back Panel .......................
8
3-3.
CD Mechanism Section ...................................................
8
3-4.
Front Panel Section .........................................................
9
3-5.
Power Transformer ..........................................................
9
3-6.
MAIN Board .................................................................... 10
3-7.
PANEL Board, CD EJECT Board, JACK Board ............ 10
3-8.
Cassette Deck Mechanism ............................................... 11
3-9.
Cassette Panel .................................................................. 11
3-10. CD Mechanism Deck (CDM80BV-F4BD81) ................. 12
3-11. Chassis (Top) ................................................................... 12
3-12. Lever (Loading R/L) ........................................................ 13
3-13. Disc Stop Lever, Disc Sensor Lever ................................ 14
3-14. DRIVER Board ............................................................... 14
3-15. BD Board ......................................................................... 15
3-16. Optical Pick-up (KSM-215CFP/C2NP) .......................... 15
3-17. Base Unit (BU-F4BD81B) .............................................. 16
3-18. Lever (BU Lock) ............................................................. 16
3-19. Close Lever ...................................................................... 17
3-20. DIR Lever, Gear (IDL-B) ................................................ 17
3-21. Gear (IDL-C) ................................................................... 18
3-11. Chassis (Top) ................................................................... 12
3-12. Lever (Loading R/L) ........................................................ 13
3-13. Disc Stop Lever, Disc Sensor Lever ................................ 14
3-14. DRIVER Board ............................................................... 14
3-15. BD Board ......................................................................... 15
3-16. Optical Pick-up (KSM-215CFP/C2NP) .......................... 15
3-17. Base Unit (BU-F4BD81B) .............................................. 16
3-18. Lever (BU Lock) ............................................................. 16
3-19. Close Lever ...................................................................... 17
3-20. DIR Lever, Gear (IDL-B) ................................................ 17
3-21. Gear (IDL-C) ................................................................... 18
4.
TEST MODE
............................................................... 19
5.
MECHANICAL ADJUSTMENTS
......................... 20
6.
ELECTRICAL ADJUSTMENTS
.......................... 20
7.
DIAGRAMS
7-1.
Block Diagram — BD Section — ................................... 25
7-2.
Block Diagram — MAIN Section — .............................. 26
7-3.
Printed Wiring Board — BD Board — ........................... 27
7-4.
Schematic Diagram — BD Board — .............................. 28
7-5.
Printed Wiring Board
— DRIVER Board, JACK Board — ............................... 29
— DRIVER Board, JACK Board — ............................... 29
7-6.
Schematic Diagram
— DRIVER Board, JACK Board — ............................... 30
— DRIVER Board, JACK Board — ............................... 30
7-7.
Printed Wiring Board — MAIN Section (1/2) — ........... 31
7-8.
Printed Wiring Board — MAIN Section (2/2) — ........... 32
7-9.
Schematic Diagram — MAIN Section (1/5) — .............. 33
7-10. Schematic Diagram — MAIN Section (2/5) — .............. 34
7-11. Schematic Diagram — MAIN Section (3/5) — .............. 35
7-12. Schematic Diagram — MAIN Section (4/5) — .............. 36
7-13. Schematic Diagram — MAIN Section (5/5) — .............. 37
7-14. Printed Wiring Board — PANEL Board — .................... 38
7-15. Schematic Diagram — PANEL Board — ....................... 39
7-16. Printed Wiring Board — PT Board — ............................ 40
7-17. Schematic Diagram — PT Board — ............................... 41
7-11. Schematic Diagram — MAIN Section (3/5) — .............. 35
7-12. Schematic Diagram — MAIN Section (4/5) — .............. 36
7-13. Schematic Diagram — MAIN Section (5/5) — .............. 37
7-14. Printed Wiring Board — PANEL Board — .................... 38
7-15. Schematic Diagram — PANEL Board — ....................... 39
7-16. Printed Wiring Board — PT Board — ............................ 40
7-17. Schematic Diagram — PT Board — ............................... 41
8.
EXPLODED VIEWS
8-1.
Panel Section ................................................................... 47
8-2.
Front Panel Section ......................................................... 48
8-3.
Chassis Section ................................................................ 49
8-4.
CD Mechanism Deck Section 1 (CDM80BV-F4BD81) . 50
8-5.
CD Mechanism Deck Section 2 (CDM80BV-F4BD81) . 51
8-6.
CD Mechanism Deck Section 3 (CDM80BV-F4BD81) . 52
8-7.
Base Unit Section ............................................................ 53
9.
ELECTRICAL PARTS LIST
.................................. 54
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