JVC KD-AR5500 Service Manual page 34

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5.5 Signal processing section 3 7 63 1515 0
Is the sound output from
both channels (L, R)?
YES
Normal
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NO
No sound from either
channel.
YES
Is 9V present at IC365
pin 16?
YES
Is the audio signal
(including sampling
output components)
output to IC191/IC291
pins 1 and 7 during
playback?
YES
Is the audio signal output
at IC171/IC271 pins 12
and 13 during playback?
YES
Check the power amp.
IC951.
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2 9
8
Compare the L-ch and
NO
R-ch to locate the
defective point.
NO
Is 9V present at IC901
pin 10?
YES
Check the connection
between IC901 pin10
and IC365 pin 16.
NO
Check IC191/IC291 and
its peripheral circuits.
NO
Check IC171/IC271 and
its peripheral circuits.
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
NO
Check IC901 and its
peripheral circuits.
0 5 8 2 9 9 4 2 8
m
9 9
9 9