Sony MHC-V42D Service Manual

24
MHC-V42D
SMPS Board Diagnosis Flow
SECTION 5
TROUBLESHOOTING
The Output from SMPS board is checked. Is following power voltage up to standard?
AC IN
Yes
No
Yes
END
No
Check whether the state of the Cable and Outlet are normal. If there are no problems, check circumference circuit for Main ON on Output of the Motherboard mount side.
Replaces SMPS board if it is not up to standard.
The Power Control signal to SMPS board is checked. Is following power voltage OK?
Main ON
NO6501 Pin9
Standby
Low (0V)
Demo mode
Hi (3.3V)
Power On
Hi (3.3V)
NO6501 Pin1,4,5 CN6500 Pin6,7,8,9
Standby
17±5V 58.5±5V
Demo mode
17±5V 58.5±5V
Power On
17±5V 58.5±5V
(1) AC input (2) Fuse (3) MAIN power transformer (4) NO6501 connector
Pin 1 : Audio (+17V) Pin 3 : Audio (GND) Pin 4 : LED (+17V) Pin 5 : LED (+17V) Pin 6 : LED (GND) Pin 7 : LED (GND) Pin 8 : AC DET Pin 9 : Main ON Pin 10 : Network ON Pin 11 : Low/High AC Pin 12 : Latch ON Pin 1 : PGND Pin 3 : PGND Pin 4 : PGND Pin 5 : PGND Pin 6 : PVDD (DC+58.5V) Pin 7 : PVDD (DC+58.5V) Pin 8 : PVDD (DC+58.5V) Pin 9 : PVDD (DC+58.5V)
(5) CN6500 connector
(1)
(2)
(3)
(5)
(4)
SYSSET
2019/03/0500:47:46(GMT+09:00)

Sony MHC-V42D Specifications

General

Speaker type	-
Speaker placement	Floor
Built-in amplifier	Yes
Number of woofer drivers	1
Number of tweeter drivers	2
Type	Home audio mini system
Control type	Buttons, Rotary
Cassette deck	No
Product color	Black
Disc loading type	Tray
Number of optical discs	1 discs
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Quantity per pack	1 pc(s)
RMS rated power	- W
Woofer diameter	250 mm
Tweeter diameter	40 mm
Mid-range driver diameter	80 mm
Coloration	Monochromatic
Bluetooth profiles	A2DP, AVRCP, SPP
Illumination location	Front
Volume control	Digital
Power source	Battery
FM band range	87.5 - 108 MHz
Supported radio bands	FM
Preset stations quantity	20
Recording on	USB
Playback modes	Normal, Repeat, Shuffle
Playback disc formats	CD audio, DVD-Audio, VCD
Audio formats supported	AAC, MP3, WAV, WMA
Video formats supported	MPEG1, MPEG4, XVID

Weight and Dimensions

Depth	300 mm
Width	328 mm
Height	799 mm
Weight	12600 g