Toshiba SDV391U Service Manual page 100

NO COLOR PLAYBACK PICTURE
OF S-VIDEO JACK
Is there C signal at
pin 162 of IC4001 ?
No
Is there Y signal at
pin 161 of IC4001?
Yes
Is there VIDEO signal
at pin 162 of IC4001?
No
Is the voltage at pin 25,
64, 93,123,140 and 192
of IC4001 about 1.8V?
Yes
Change IC4001.
TROUBLESHOOTING GUIDE
Yes
No
Yes
No
Check J8013 and peripheral
circuit.
REFER TO "NO PLAYBACK
PICTURE OF S-VIDEO JACK".
REFER TO "NO PLAYBACK
PICTURE OF AV JACK" .
Check P.CON+3.3V line on
POWER BLOCK.
E-32