JVC KD-G612 Service Manual

1-28 (No.MA148)
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 IC581 pins 1
and 7 during playback?
Is the audio signal
output at IC161 pins 18
and 21 during playback?
Normal
NO
YES
NO
Is 9V present at IC901
pin 10?
YES
Check the connection
between IC901 pin10
and IC161 pin26.
Check IC901 and its
peripheral circuits.
NO
YES
NO
Check IC581 and its
peripheral circuits.
YES
NO
Check IC161 and its
peripheral circuits.
Check the power amp.
IC301.
YES

JVC KD-G612 Specifications

General

Brand	JVC
Model	KD-G612
Category	Car Receiver
Language	English