Toshiba SD-V280UA Service Manual page 80

TUNER AUDIO(STEREO)
DOES NOT APPEAR
Does TUNER AUDIO
(MONO) appear?
YES
Does E-E AUDIO
(STEREO) appear?
YES
At the time of channel
change,does the display of a
stereo come out to the screen?
YES
Is there audio signal at
pin 48 of IC701?
YES
Is there audio signal
at pin 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
NO
NO
Refer to section "TUNER AUDIO
(MONO) DOES NOT APPEAR".
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Change IC701.
Check ciruit around of TU301.
Check IC8003 of pin 1 and 7.
E-26
Change IC701.