Sharp LC-26SH7E/RU Service Manual page 53

↓
Does not the picture of the R/G/B video signal input to SCART1 go out?
↓
TERMINAL UNIT:
Is RGB signal sent to pin (15)/R, (11)/G, (7)/B, of SCART1
(CN500)?
↓YES
MAIN_UNIT:
Is RGB signal sent to pin (AF24)/R, (AD24)/G, (AD23)/B of IC
U400?
Refer to "The picture doesn't appear in all modes."
↓
Does not the picture of the Y/C signal input to SCART1 go out?
↓
TERMINAL UNIT:
Is Y/C signal sent to pin (20) and (15) of SCART1 (CN500)?
↓YES
MAIN_UNIT:
Is Y/C signal sent to pin (AE24)/Y, (AF25)/C of IC U400?
↓YES
Refer to "The picture doesn't appear in all modes."
↓
Does not the picture of the composite video signal input to AV3(Composite) go out?
↓
TERMINAL UNIT:
Is CVBS signal sent to pin (2) of AV3 (CN650) ?
↓YES
MAIN_UNIT:
Is CVBS signal sent to pin (AC24) of IC U400?
↓YES
Refer to "The picture doesn't appear in all modes."
<External input SCART1>No picture on the display (5)
↓YES
<External input SCART1 >No picture on the display (6)
<External input AV3(Composite)>No picture on the display (7)
2008-03-14
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU
NO
Check the setting of an external input device that connects of
CN500.
NO
Check the line between IC U400 and CN500.
NO
Check the setting of an external input device that connects of
CN500.
NO
Check the line between IC U400 and CN500.
NO
Check the setting of an external input device that connects of
CN650.
NO
Check the line between IC U400 and CN650.
53