Power - Toshiba SD-V594SC Service Manual

NO PLAYBACK PICTURE OF
S-VIDEO JACK
Is there Y signal at
pin 184 of IC4001 ?
NO
Change IC4001.
NO COLOR PLAYBACK PICTURE
OF S-VIDEO JACK
Is there C signal at
pin 183 of IC4001 ?
NO
Is there Y signal at
pin 184 of IC4001?
YES
Is there VIDEO signal
at pin 186 of IC4001?
NO
Is the voltage at pins 34,
80, 109, 147, 158 and 218
of IC4001 about 1.8V?
YES
Change IC4001.
TROUBLESHOOTING GUIDE
YES
YES
NO
YES
NO
E-30
Check J8008 and
peripheral circuit.
Check J8008 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.