Sharp lc-32rd8 Service Manual page 53

Does not the picture of the CVBS signal input to EXT3 go out?
Is CVBS signal output from pin(6) in input
terminalJ1002 to pin(10) of connector SC1001?
Is the CVBS signal input from pin(10) of connector
P1001 to pin(1) of IC1001(VIDEO SELECTOR)?
Is CVBS signal output to pin(184) of IC3001
(MAIN_MICON) from pin(7) of IC1001?
Refer to "The picture doesn't appear in all modes."
Does not the picture of the Y/C video signal input to EXT3 go out?
Is Y/C signal input into pin(14), (12) of connector
SC1001 from pin(3)/Y, (4)/C of J1001?
Is Y/C signal output from pin(14)/Y,(12)/C of connector
P1001?
Is the Y/C video signal detection function SV1JSW sig-
nal from pin (6) of the input terminal J1001 normal?
Is the SV1JSW signal input to pin(2) of IC1001
(VIDEO_SELECTOR) and pin(27) of IC2302
(SUB_MICON)?
Is Y/C signal sent to pins (184), (183) of
IC3001(MAIN_MICON)?
Refer to "The picture doesn't appear in all modes."
[External input EXT3] No picture on the display (7)
NO
YES
NO
YES
NO
YES
[External input EXT3] No picture on the display (8)
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
LC-32RD8E/S/RU-BK/GY (1st Edition)
Check the line between J1002 and SC1001.
Check the line between P1001 and IC1001.
(Connector SC1001/P1001, etc.)
Check the line between IC1001 and IC3001.
(SV1JSW_LINE, EXT_DTV_LINE, etc.)
Check the line between J1001 and SC1001.
Check the connector SC1001/P1001.
Check J1001 or peripheral circuits.
Check the between SV1JSW_LINE J1001 and IC1001/IC2302.
(Connector SC1001/P1001, etc.)
Check the line between P1001 and IC3001.
(IC1001, EXT_DTV_LINE etc.)
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