Toshiba SD-V280UA Service Manual page 76

E-E DOES NOT APPEAR
(THE PICTURE DOES NOT
APPEAR FROM TUNER)
Does normality AUDIO
JACK CONNECT?
YES
Are there thevoltage
of MB(5V),PB(5V),
TU(32V) of TU301?
YES
Check the picture.
Is there video signal at
pin 24 of TU301?
YES
Is there video signal
at pin 26 of IC101?
YES
Is there video signal at
pin 19 of IC3001?
YES
Check J8001.
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
NO
Connection is done over
Check POWER BLOCK.
E-22
again.
Change TU301.
Change IC101.
Change IC3001.