DAV-DX150, DAV-DX170, DAV-DX250, HCD-DX150, HCD-DX170, HCD-DX250 - Sony Audio Service Manual (repair manual). Page 4

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5

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8

3-1.

Disassembly Flow ........................................................... 10

3-2.

Case, Front Panel Assy .................................................... 11

3-3.

FL Board, H/P Board ....................................................... 12

3-4.

STBY Board, LED Board, KEY Board .......................... 12

3-5.

IO Board, DC Fan ........................................................... 13

3-6.

DMB10 Board ................................................................. 13

3-7.

MAIN Board .................................................................... 14

3-8.

MD COVER .................................................................... 14

3-9.

DVD Mechanism Deck (CDM81C-DVBU101) .............  15

3-10. Tray .................................................................................. 16
3-11. MOTOR Board, M761 (LD/ST MOTOR),

M762 (BU U/D MOTOR) ............................................... 16

3-12. Base Unit (DVBU101) .................................................... 17
3-13. Optical Pick-up (KHM-310CAB/C2NP) ........................ 17
3-14. Gear (Sub Tray 1), Gear (Sub Tray 2) ............................. 18
3-15. Lever Assy ....................................................................... 18
3-16. Stocker Section ................................................................ 19
3-17. Cam (Stocker) .................................................................. 19
3-18. Gear (Stocker 3) .............................................................. 20
3-19. Rotary Encoder (MD) ...................................................... 20
3-20. Gear (BU2) ...................................................................... 21

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5-1.

Block Diagram  – RF/SERVO Section – ......................... 28
– VIDEO Section – .......................................................... 29
– AMP Section – .............................................................. 30
– AUDIO Section – .......................................................... 31
– POWER Section – ........................................................ 32

5-2.

Printed Wiring Board – DVD Mechanism Section – ...... 33

5-3.

Schematic Diagram  – DVD Mechanism Section – ........ 34

5-4.

Printed Wiring Board  – DMB10 Section (Side A) – ...... 35

5-5.

Printed Wiring Board  – DMB10 Section (Side B) – ...... 36

5-6.

Schematic Diagram  – DMB10 Section (1/4) – .............. 37

5-7.

Schematic Diagram  – DMB10 Section (2/4) – .............. 38

5-8.

Schematic Diagram  – DMB10 Section (3/4) – .............. 39

5-9.

Schematic Diagram  – DMB10 Section (4/4) – .............. 40

5-10. Printed Wiring Board – MAIN Section (Side A) – ......... 41
5-11. Printed Wiring Board – MAIN Section (Side B) – ......... 42
5-12. Schematic Diagram  – MAIN Section (1/7) – ................. 43
5-13. Schematic Diagram  – MAIN Section (2/7) – ................. 44
5-14. Schematic Diagram  – MAIN Section (3/7) – ................. 45
5-15. Schematic Diagram  – MAIN Section (4/7) – ................. 46
5-16. Schematic Diagram  – MAIN Section (5/7) – ................. 47
5-17. Schematic Diagram  – MAIN Section (6/7) – ................. 48
5-18. Schematic Diagram  – MAIN Section (7/7) – ................. 49
5-19. Printed Wiring Board – PANEL Section – ...................... 50
5-20. Schematic Diagram  – PANEL Section – ........................ 51
5-21. Printed Wiring Board – IO Section – .............................. 52
5-22. Schematic Diagram  – IO Section – ................................ 53

6-1.

Overall Section ................................................................ 66

6-2.

Front Panel Section ......................................................... 67

6-3.

Chassis Section ................................................................ 68

6-4.

DVD Mechanism Deck Section-1
(CDM81C-DVBU101) .................................................... 69

6-5.

DVD Mechanism Deck Section-2
(CDM81C-DVBU101) .................................................... 70

6-6.

DVD Mechanism Deck Section-3
(CDM81C-DVBU101) .................................................... 71

6-7.

Base Unit (DVBU101) .................................................... 72

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Ref. No.

Type1

Type2

Wiring Board

Location

R577

1-216-821-11

METAL CHIP      1K         5%     1/10W (DX150)

no mount (DX150)

H-3

1-216-841-11

METAL CHIP      47K       5%     1/10W (DX170)

1-216-837-11

METAL CHIP      22K       5%     1/10W (DX170)

R793

no mount (DX150)

1-216-829-11

METAL CHIP      4.7K      5%     1/10W (DX150)

H-2

• FUSE (F901) on MAIN board has been changed from the middle of production.

When repairing, please confirm the type of  FUSE (F901) by indication on the end cap and use same type.

CAP 1

CAP 2

Indication on the end cap

FUSE (F901)

Part number

CAP1

CAP2

TYPE A

1-576-537-12

8A / 125V

51MS

TYPE B

1-533-311-12

LF.8A / 125V

233

P

Note on replacement of parts on MAIN board
• R577 and R793 on MAIN board are different by type of DMB board used in this model.

When repairing, please confirm the type of DMB board at the beginning and use the parts corresponded to the table below.

Type1 :  DMB10 board
Type2 :  DMB11 board