Toshiba SD-V395 Service Manual - Page 80
Check lead wire of A/C HEAD, THE AUDIO CAN
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TROUBLESHOOTING GUIDE THE AUDIO CAN NOT RECORD NO Is bias level at L101 OK? YES In startinAg recording, NO is there sine wave at pin 11 of IC101? YES Check POWER BLOCK and voltage of base of Q103. Check disconnection and short of L101. Is there audio signal at NO pin 76, 78 and 80 of IC101? YES Is there voltage NO of base of Q103 about 5V? YES Is there a sine wave NO at pin 5 of L101? YES Check lead wire of A/C HEAD and CONNECTOR. Check IC701 and the circuit from TUNER or audio input jack to IC701 . Change Q103. Change L101. E-19
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TROUBLESHOOTING
GUIDE
E-19
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
THE AUDIO CAN NOT
RECORD
Is bias level at L101 OK?
In startinAg recording,
is there
sine wave at
pin 11 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 jack to IC701 .
Change Q103.
Change L101.
Is there a sine wave
at pin 5 of L101?
Check lead wire of A/C HEAD
and CONNECTOR.