Toshiba SDV391U Service Manual page 87

THE AUDIO CAN NOT
RECORD
Is bias level at L101 OK?
YES
Is there audio signal at
pin 76, 78 and 80 of IC101?
YES
Is there voltage
of base of Q103
about 5V?
YES
Is there a sine wave
at pin 5 of L101?
YES
Check lead wire of A/C HEAD
and CONNECTOR.
TROUBLESHOOTING GUIDE
In startinAg recording,
NO
is there sine wave at
pin 11 of IC101?
YES
Check disconnection
and short of L101.
NO
NO
NO
NO
Check POWER BLOCK and
voltage of base of Q103.
Check IC701 and
the circuit from TUNER
or audio input jack to IC701 .
Change Q103.
E-19
Change L101.