Service manual

TROUBLESHOOTING GUIDE
E-15
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
THE AUDIO CAN NOT
RECORD
Is bias level at L102 OK?
In starting recording,
is there sine wave at
pin 98 of IC101?
Check POWER BLOCK and
voltage of base of Q103.
Check disconnection
and short of L102.
Is there audio signal at
pin 1 of IC101?
Is there voltage
of base of Q103
about 5V?
Check IC701 and
the circuit from TUNER
or audio input jack to IC701 .
Change Q103.
Change L101.
Is there a sine wave
at pin 6 of L101?
Check lead wire of A/C HEAD
and CONNECTOR.