Toshiba SD-V280UA Service Manual page 79

TUNER AUDIO(MONO)
DOES NOT APPEAR
Does E-E AUDIO
(MONO) appear?
YES
Is there SIF signal at
pin 48 of IC701?
YES
Is there audio signal at
pin 53,57 of IC701?
YES
Is there audio signal
a collector of Q8005
and Q8006?
YES
Check circuit around of J8001.
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
Refer to section "E-E AUDIO
(MONO) DOES NOT APPEAR".
Check circuit around of TU301
Change IC701.
Check IC8001 at pin 3, 5.
E-25
at pin 22.