LC-42/46/52D85X
6 – 9
<External input INPUT1,INPUT2> No picture on the display (4)
Does not the picture of the CVBS signal input to INPUT1 go out?
Does not the picture of the CVBS signal input to INPUT2 go out?
SUB UNIT:
<INPUT1>
Is CVBS signal sent to pin (6) of INPUT1 (J1704)?
NO
Check the setting of an external input device that connects of
J1704.
<INPUT2>
Is CVBS signal sent to pin (6) of INPUT2 (J1702)?
NO
Check the setting of an external input device that connects of
J1702.
YES
<INPUT1>
Is CVBS signal sent to pin (65) of IC506?
NO
Check the line between J1704 and IC506.
<INPUT2>
Is CVBS signal sent to pin (71) of IC506?
NO
Check the line between J1702 and IC506.
YES
Is Y/C signal output to pin (2) of connector SC501 from pin (52)
of IC506?
NO
Check the line between IC506 and SC501.
MAIN UNIT:
YES
Is CVBS signal (MAIN_Y/V) input to pin (2) of connector
SC1101?
NO
Check the connector SC501/SC1101.
YES
Is CVBS signal (MAIN_Y/V) input to pins (Y4) of IC3301
(VIDEO_PROCESSOR)?
NO
Check the line between SC1101 and IC3301.
YES
Refer to “The picture doesn't appear in all modes.”
