JVC KD-SX60WT Service Manual page 27

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5.4 Tracking section
When the disc is rotated
Is the tracking error
signal output at TP3?
Check IC521.
5.5 Signal processing section
Is the sound output from
both channels (L, R)?
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at first:
YES
Approx. 1.2 V
YES
NO
YES
Normal
(including sampling output
IC521 pins 10 and 23 during
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8
Check the circuit in the
vicinity of IC501 pins
2 12.
No sound from either
channel.
YES
Is 9V present at IC101 pin
(8)?
YES
Q Q
Is the audio signal
3 6 7 1 3
components) output to
YES
Is the audio signal output
at IC101 pins 1
and 7 during playback?
YES
Check the muting circuit.
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.
2 9 9 4 2 8
YES Check the pickup and
its connections.
NO
Compare the L-ch and
R-ch to locate the
defective point.
NO
Check the vicinity of the
Q981 audio power
supply.
NO
Check IC521 and its
1 5 0 5 8 2 9 9 4
peripheral circuits.
NO Check IC101 and its
peripheral circuits
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co
9 9
2 8 9 9
(No.49868)1-27