Sharp LC-42SH330 Service Manual page 55

Does not the picture of the component video signal input to Component go out?
TERMINAL_UNIT:
Is Component Y/Pb/Pr signal sent to pin (2)/Y, (4)/Pb, (6)/Pr of
AV1(CN111) ?
MAIN_UNIT:
Is Component Y/Pb/Pr signal sent to pin (AU26)/Y, (AT27)/Pb,
(AP27)/Pr of IC U401?
Refer to "The picture doesn't appear in all modes."
<External input AV1(Component)>No picture on the display (10)
↓
↓
↓YES
↓YES
2008-03-14
LC-26SH330, LC-32SH330, LC-42SH330
NO
Check the setting of an external input device that connects of
CN111.
NO Check the line between IC U401 and CN111.
55