Sony MHC-V4D Service Manual

MHC-V3/V4D
3
1. SERVICING NOTES ............................................. 4
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 9
2-2. Side L, R Panel ............................................................... 10
2-3. Top Panel Block .............................................................. 10
2-4. Loading Panel Block ....................................................... 11
2-5. CDM Block ..................................................................... 12
2-6. Back Panel Block ............................................................ 13
2-7. TUNER Board ................................................................ 14
2-8. ARAGON Board ............................................................. 15
2-9. DAMP Board .................................................................. 16
2-10. Chassis Block .................................................................. 17
2-11. Bluetooth Module, SMPS Board .................................... 18
2-12. Front Panel Block ........................................................... 19
2-13. RC-S801/A5 (WW), SPEAKER LED Board,
IR Board, Front Panel Assy ............................................ 20
2-14. Loudspeaker (20 cm) (Woofer) (SP5) ............................. 21
2-15. Loudspeaker (8 cm) (Mid: L-ch) (SP1),
Loudspeaker (8 cm) (Mid: R-ch) (SP3) .......................... 22
2-16. Service, Optical Device(7G), Wire (Flat Type) .............. 23
2-17. Volume Knob Block ........................................................ 24
3. TEST MODE ............................................................ 25
4. ELECTRICAL CHECK ......................................... 31
5. TROUBLESHOOTING .......................................... 33
6. DIAGRAMS
6-1. Block Diagram - CD/USB Section - ............................... 39
6-2. Block Diagram - MAIN Section - ................................... 40
6-3. Block Diagram - AMP Section - ..................................... 41
6-4. Block Diagram
- PANEL/POWER SUPPLY Section - ............................ 42
6-5. Printed Wiring Board
- ARAGON Board (Component Side) - .......................... 44
6-6. Printed Wiring Board
- ARAGON Board (Conductor Side) - ........................... 45
6-7. Schematic Diagram - ARAGON Board (1/6) - ............... 46
6-8. Schematic Diagram - ARAGON Board (2/6) - ............... 47
6-9. Schematic Diagram - ARAGON Board (3/6) - ............... 48
6-10. Schematic Diagram - ARAGON Board (4/6) - ............... 49
6-11. Schematic Diagram - ARAGON Board (5/6) - ............... 50
6-12. Schematic Diagram - ARAGON Board (6/6) - ............... 51
6-13. Printed Wiring Board - PANEL Board - ......................... 52
6-14. Schematic Diagram - PANEL Board - ............................ 53
6-15. Printed Wiring Board -
DAMP Board - .......................... 54
6-16. Schematic Diagram -
DAMP Board - ............................. 55
6-17. Printed Wiring Board - TUNER Board - ........................ 56
6-18. Schematic Diagram -
TUNER Board - ........................... 57
TABLE OF CONTENTS
6-19. Printed Wiring Board - USB Board - .............................. 58
6-20. Schematic Diagram -
USB Board - ................................ 58
6-21. Printed Wiring Board -
MIC Board (V4D) - .................. 58
6-22. Schematic Diagram -
MIC Board (V4D) - ..................... 59
6-23. Printed Wiring Board -
IR Board - ................................. 60
6-24. Schematic Diagram -
IR Board - .................................... 60
6-25. Printed Wiring Board -
SPEAKER LED Board - ........... 60
6-26. Schematic Diagram -
SPEAKER LED Board - .............. 60
7. EXPLODED VIEWS
7-1. Side Panel Section .......................................................... 76
7-2. Loading Panel Section .................................................... 77
7-3. Back Panel Section ......................................................... 78
7-4. ARAGON Board Section ................................................ 79
7-5. Chassis Section ............................................................... 80
7-6. Front Panel Section ......................................................... 81
7-7. Speaker Cabinet Section ................................................. 82
7-8. Top Panel Section ........................................................... 83
7-9. CDM Block Section ........................................................ 84
7-10. CD Mechanism Section
(CDM90-DVBU204//M) ................................................ 85
8. ELECTRICAL PARTS LIST .............................. 86
Accessories are given in the last of the electrical parts list.
Ver. 1.5

Sony MHC-V4D Specifications

General

Type	Home audio mini system
Cassette deck	No
Product color	Black
Optical disc player	Yes
Number of optical discs	1 discs
Bass reflex	-
Speaker type	3-way
RMS rated power	720 W
Woofer diameter	200 mm
Tweeter diameter	40 mm
Number of speakers	5
Mid-range driver diameter	100 mm
Equalizer modes	Custom, Pop, Flat, Rap, Rock
FM band range	87.5 - 108 MHz
Supported radio bands	FM
Power source	AC
Input voltage	120-240 V
Input frequency	50 - 60 Hz
Composite video out	1
Apple docking compatibility	Not supported
On Screen Display (OSD) languages	English
Playback modes	Program, Shuffle, Repeat, Normal
Audio formats supported	WMA, MP3
Display type	LCD

Weight and Dimensions

Depth	295 mm
Width	280 mm
Height	780 mm