Toshiba D-VR4SU Service Manual page 101

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 57 of IC701 ?
YES
Is there audio signal at pin
78 and 80 of IC701 ?
YES
Is there audio signal
a collector of
Q8017 and Q8018 ?
YES
Check circuit around of J8005.
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
NO
NO
E-27
Refer to section "TUNER AUDIO
(MONO) DOES NOT APPEAR".
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Change IC701.
Check circuit around of TU301.
Change IC701.
Check IC701.
D-VR4SU/D-VR4SC