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54
No Audio output.
Insert the audio disc.
Does the
signal output at the
headphone jack?
NO
Is the
pin 4 of IC801 and is the
Pin 2 of IC802 is 5V?
YES
Does the
Audio signal output at
the C815 and C816?
NO
Does the
Audio signal output at
the C804 and C805?
NO
Does the
Audio signal inputted at pin 6, 7,
10, 11, of IC801?
NO
Does the
Audio signal output at
IC701 pin 134, 135, 142
and 143?
NO
Does the
signal output at the pin
118, 116 and 113 of
IC701?
NO
Check the servo part.
YES
Check the headphone jack and
cable.
NO
Check the MICOM IC201 pin 24
and R823.
YES
Replace IC801.
YES
Check the cold soldering for the
VR801, R801, R821, R802 and
R822
YES
Check the IC801 and
peripheral components.
YES
Replace IC701
YES
Replace R718, R719, and
R720.
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