Sharp LC-32SV21L Service Manual page 42

LC-32SV21L&LC-42SV31L
Does not the picture of the PC IN(ANALOG) video signal input to VGA (15pin-D-SUB terminal) go out?
TERMINAL_UNIT:
Is R/G/B/H/V signal sent to pin (1)/R, (2)/G, (3)/B, (13)/H, (14)/V of
VGA (CN101)?
MAIN_UNIT:
Is R/G/B/H/V signal sent to pin (AC10)/R, (AC9)/G, (AD9)/B,
(W12)/H, (W11)/V of IC U401?
Refer to "The picture doesn't appear in all modes."
<External input VGA>No picture on the display (8)
↓
↓
↓YES
↓YES
NO
Check the setting of an external input device that connects of
CN101.
NO
Check the line between IC U401 and CN101.
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