Sony MHC-V41D Service Manual

MHC-V41D
38
SECTION 5
TROUBLESHOOTING
1. Optical Pick-up Block (CMS-S76RFS7G1/S76RFS7GP) (OP1) Diagnosis Flow
Remove the top panel, turn the
power on, close the disc tray and
set in the state that optical pick-up
block can see.
Yes
Yes
Yes
The voltage of the following is 3.3 V.
MOTHER board: JL049
The optical pick-up block moves to
the inner circumference.
(Visual check)
No
The spindle motor rotates.
(Visual check)
No
The voltage of the following is 3.3 V.
MOTHER board: JL071 (IC009: pin 14)
No
Check the circuit of area surrounding
IC401 pin 17 (VOLD+), pin 18 (VOLDí)
on the MOTHER board.
Check the circuit of area surrounding
IC301 pin 13 (FMO) on the MOTHER
board.
No
Yes
The SL+/SLí signal is outputted to the
CN402 pin 4 (SL+), pin 3 (SLí) on the
MOTHER board.
Yes
Replace the optical pick-up block because
sled motor has the problem.
Check the circuit of area surrounding
IC401 pin 11 (VOSL+), pin 12 (VOSLí)
on the MOTHER board.
Check the circuit of area surrounding
IC301 pin 12 (DMO) on the MOTHER
board.
No
The SP+/SPí signal is outputted to the
CN402 pin 2 (SP+), pin 1 (SPí) on the
MOTHER board.
Yes
Replace the optical pick-up block because
spindle motor has the problem.
The optical pick-up block does the
focus search.
(Visual check)
No
Check the circuit of area surrounding
IC401 pin 14 (VOFC+), pin 13 (VOFCí)
on the MOTHER board.
Check the circuit of area surrounding
IC301 pin 17 (FOO) on the MOTHER
board.
No
The FCS+/FCSí signal is outputted to the
CN302 pin 23 (FCS+), pin 24 (FCSí) on
the MOTHER board.
Yes
Replace the optical pick-up block because
optical pick-up block has the problem.
– Continued on page 39 –

Sony MHC-V41D Specifications

General

Cassette deck	No
Product color	Black
Number of decks	1 deck(s)
Disc loading type	Tray
Optical disc player	Yes
Number of optical discs	1 discs
Coloration	Monochromatic
Bluetooth profiles	A2DP, AVRCP, SPP
Illumination location	Front
Number of microphone inputs	2
Audio decoders	Dolby Digital
RMS rated power	- W
Woofer diameter	250 mm
Tweeter diameter	40 mm
Number of speakers	1
Mid-range driver diameter	80 mm
Disc types supported	CD, CD-R, CD-RW, DVD, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-RW
Playback disc formats	DVD-Video, VCD
Audio formats supported	MP3
Video formats supported	MPEG4, XVID
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.
FM band range	87.5 - 108 MHz
Supported radio bands	FM
Preset stations quantity	20
Power source	AC
Power consumption (standby)	0.5 W

Weight and Dimensions

Depth	308 mm
Width	328 mm
Height	796 mm
Weight	13500 g