HCD-BC150, HCD-BC250 - Sony Audio Service Manual (repair manual). Page 2

2

...................................................

3

2-1.

Disassembly Flow ...........................................................

6

2-2.

Case, Front Panel Assy Section .......................................

7

2-3.

PANEL Board, FL Board, H/P Board,
POWER SW Board .........................................................

8

2-4.

Switching Regulator ........................................................

8

2-5.

AMP Board ......................................................................

9

2-6.

DMB09 Board .................................................................

9

2-7.

SPK Board, IO Board, DC Fan ....................................... 10

2-8.

MAIN Board .................................................................... 10

2-9.

LF Board .......................................................................... 11

2-10. MD Rear Cover ............................................................... 11
2-11. DVD Mechanism Deck (CDM81C-DVBU100) ............. 12
2-12. Tray .................................................................................. 13
2-13. MOTOR Board, M761 (LD/SD Motor),

M762 (BU U/D Motor) ................................................... 13

2-14. Base Unit (DVBU100) .................................................... 14
2-15. Optical Pick-up (KHM-310AAB/C2NP) ........................ 14

............................................................... 15

............................. 19

5-1.

Block Diagram  – RF/SERVO Section – ......................... 22
– VIDEO Section – .......................................................... 23
– AMP Section – .............................................................. 24
– AUDIO Section – .......................................................... 25
– POWER Section – ........................................................ 26

5-2.

Printed Wiring Board – DVD Mechanism Section – ...... 27

5-3.

Schematic Diagram  – DVD Mechanism Section – ........ 28

5-4.

Printed Wiring Board  – DMB09 Section (Side A) – ...... 29

5-5.

Printed Wiring Board  – DMB09 Section (Side B) – ...... 30

5-6.

Schematic Diagram  – DMB09 Section (1/4) – .............. 31

5-7.

Schematic Diagram  – DMB09 Section (2/4) – .............. 32

5-8.

Schematic Diagram  – DMB09 Section (3/4) – .............. 33

5-9.

Schematic Diagram  – DMB09 Section (4/4) – .............. 34

5-10. Printed Wiring Board – MAIN Section (Side A) – ......... 35
5-11. Printed Wiring Board – MAIN Section (Side B) – ......... 36
5-12. Schematic Diagram  – MAIN Section (1/3) – ................. 37
5-13. Schematic Diagram  – MAIN Section (2/3) – ................. 38
5-14. Schematic Diagram  – MAIN Section (3/3) – ................. 39
5-15. Printed Wiring Board – PANEL/FL/POWER SW/

H/P/AMP RETAINER Section – ..................................... 40

5-16. Schematic Diagram  – PANEL/FL/POWER SW/

H/P/AMP RETAINER Section – ..................................... 41

5-17. Printed Wiring Board – IO Section – .............................. 42
5-18. Schematic Diagram  – IO Section – ................................ 43
5-19. Printed Wiring Board  – AMP Section (Side A) – ........... 44
5-20. Printed Wiring Board  – AMP Section (Side B) – ........... 45
5-21. Schematic Diagram  – AMP Section (1/4) – ................... 46
5-22. Schematic Diagram  – AMP Section (2/4) – ................... 47
5-23. Schematic Diagram  – AMP Section (3/4) – ................... 48
5-24. Schematic Diagram  – AMP Section (4/4) – ................... 49
5-25. Printed Wiring Board  – SPK/LF Section – .................... 50
5-26. Schematic Diagram  – SPK/LF Section – ....................... 50

6-1.

Overall Section ................................................................ 70

6-2.

Front Panel Section ......................................................... 71

6-3.

Chassis Section ................................................................ 72

6-4.

DVD Mechanism Deck Section-1
(CDM81C-DVBU100) .................................................... 73

6-5.

DVD Mechanism Deck Section-2
(CDM81C-DVBU100) .................................................... 74

6-6.

DVD Mechanism Deck Section-3
(CDM81C-DVBU100) .................................................... 75

6-7.

Base Unit Section (DVBU100) ....................................... 76

.................................. 77