JVC KD-AR760 Service Manual

(No.MA112)1-29
5.5 Signal processing section
No sound from either
channel.
Is 9V present at IC161
pin 40?
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 36
to 39 during playback?
Normal
NO
YES
NO
Is 9V present at IC901
pin 10?
YES
Check the connection
between IC901 pin10
and IC161 pin 40.
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
Is the audio signal output
at IC361/IC381 pins 12
and 13 during playback?
YES
NO
Check IC361/IC381 and
its peripheral circuits.

JVC KD-AR760 Specifications

General

Brand	JVC
Model	KD-AR760
Category	Car Receiver
Language	English