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TROUBLE SHOOTING GUIDE
THE AUDIO CAN NOT RECORD
Is bias level at L102 OK?
YES
Is there audio signal at
pin 1 of IC101?
YES
Is there voltage of
base of Q101 about
5V?
YES
Is there Asin wave at
pin 5 of L101?
YES
Check lead wire of A/C HEAD
and CONNECTOR.
In starting recording,
NO
is there sine wave at
pin 98 of IC101?
YES
Check disconnection and short
of L102.
NO
NO
- 36 -
Check POWER BLOCK and
NO
voltage of base of Q101.
Check IC701 and
the circuit from TUNER
or audio input juck to IC01.
Change Q101.
Change L102.
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