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TROUBLESHOOTING CUIDE
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
THE AUDIO CAN NOT
RECORD
Is bias level at L101 OK?
In starting recording,
is there sine wave at
pin 7 of IC101?
Check POWER BLOCK and
voltage of base of Q103.
Check disconnection
and short of L101.
Is there audio signal at
pin 76,78 and 80 of IC101?
Is there voltage
of base of Q103
about 5V?
Check IC701 and
the circuit from TUNER
or audio input juck to IC701 .
Change Q103.
Change L101.
Is there sine wave at
pin 5 of L101?
Check lead wire of A/C HEAD
and CONNECTOR.