JVC KD-S51 Service Manual

(No.MA124)1-27
5.5 Signal processing section
No sound from either
channel.
Is 9V present at IC161
pin 26?
Compare the L-ch and
R-ch to locate the
defective point.
Is the sound output from
both channels (L, R)?
NO
YES
Is the audio signal
(including sampling
output components)
output to IC572 pins 1
and 7 during playback?
Is the audio signal
output at IC161 pins 1
to 2 during playback?
Normal
NO
YES
NO
Is 9V present at IC901
pin 10?
YES
Check the connection
between IC901 pin10
and IC161 pin 26.
Check IC901 and its
peripheral circuits.
NO
YES
NO
Check IC572 and its
peripheral circuits.
YES
NO
Check IC161 and its
peripheral circuits.
Check the power amp.
IC301.
YES
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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JVC KD-S51 Specifications

General

Brand	JVC
Model	KD-S51
Category	Car Receiver
Language	English