Sharp LC-32SV40U Service Manual page 53

Does not the picture display when RCA cable plugged into component ?
Terminal
Is Component Y/Pb/Pr signal sent to pin (2)/Y,
(4)/Pb, (6)/Pr of CN1202?
YES
Main UNIT:
Is Component Y/Pb/Pr signal sent to pin (34)/Y1p,
(36)/Pb1p, (37)/Pr1p of IC U2102?
YES
Refer to "The picture doesn't appear in all modes."
<External input Input(Component)>No picture on the display (7)
NO
Check the setting of an external input device that
connects of CN1202
NO
Check the line between IC U2102 and CN1202.
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