JVC KD-G110 Service Manual page 29

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5.2.5 5.5 Signal processing section 3 7 63 1515 0
Is the sound output from
both channels (L, R)?
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NO
YES
Normal
Is present at IC161 pin
(including sampling output
IC571 pins 1 and 7 during
Is the audio signal output
Check the muting circuit.
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2 9
8
NO
No sound from either
channel.
YES
NO
31?
YES
NO
Is the audio signal
components) output to
playback?
YES
NO
at IC161 pins 3 and 30
during playback?
YES
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
Compare the L-ch and
R-ch to locate the
defective point.
Check the vicinity of the
IC901 audio power
supply.
Check IC571 and its
peripheral circuits.
Check IC161 and its
peripheral circuits.
0 5 8 2 9 9 4 2 8
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