TOSHIBA SDV291U
Service Manual

TROUBLESHOOTING GUIDE

THE AUDIO CAN NOT RECORD

NO Is bias level at L101 OK? YES

In startinAg recording, is there sine wave at pin 11 of IC101? YES

NO

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? YES

NO

Check IC701 and the circuit from TUNER or audio input jack to IC701 .

Is there voltage of base of Q103 about 5V? YES

NO

Change Q103.

Is there a sine wave at pin 5 of L101? YES

NO

Change L101.

Check lead wire of A/C HEAD and CONNECTOR.

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