Toshiba SD-V280UA Service Manual page 91

No playback picture of
S-VIDEO jack
Are there Y signal at pin 23
and C signal at pin 25 of
IC8501 ?
NO
Are there waveform at
pins 4,6,9,11,13
of IC8501 ?
NO
Are there waveform at
pins 102,103,105,106
of IC4001 ?
NO
Change IC4001
TROUBLESHOOTING GUIDE
YES
YES
YES
Check D8504 and circuit
Check IC8501 and circuit
E-37
around of D8505
Change IC8501
around of IC4001