Sharp LC-32LE700E Service Manual page 62

LC-32/40/46LE700E/RU/S,LU700E/S,LX700E/RU,LC-52LE700E/RU/S
Is CVBS signal output into pin (19) of EXT2 (SC502)?
Is CVBS signal input to pin(1) of IC508 from pin(AJ24/
CVBS_MONI_OUT) of IC3302
(Digital AV decode & Main CPU)?
Is CVBS signal sent to pin(AG29/SC1_CVBS/Y) of IC3302
(Digital AV decode & Main CPU) from EXT1(SC503)?
Is CVBS signal sent to pin (20) of EXT1(SC503)?
Check the setting of an external input device that connects with
EXT1.
Is CVBS signal output into pin(19) of EXT2 (SC502)?
Is CVBS signal input to pin(1) of IC508 from pin(AJ24/
CVBS_MONI_OUT) of IC3302
(Digital AV decode & Main CPU)?
Is CVBS signal input to pin (AE29/CVBS__IN) of IC3302 from
J505?
Is CVBS signal sent to pin (6) of EXT8(J505)?
Is V3_PLUG detection signal input to pin (AJ11/CVBS/PLUG) of
IC3302 from pin(7) of EXT8 (J505)?
Check the setting of an external input device that connects with
EXT8.
<During external connection> No picture on the monitor (3)
No picture from EXT1 appears on EXT2-connected monitor.
NO
NO
NO
NO
<During external connection> No picture on the monitor (4)
No picture from EXT8 appears on EXT2- connected monitor.
NO
NO
NO
NO
NO
YES Check the setting of an external input device that connects with
EXT2.
YES Check the IC508 and their peripheral circuits.
YES Check the IC3302 and their peripheral circuits.
YES Check the line between EXT1(SC503) and IC3302.
YES Check the setting of an external input device that connects with
EXT2.
YES Check the IC508 and their peripheral circuits.
YES Check the IC3302 and their peripheral circuits.
YES Check the line between EXT8(J505) and IC3302.
YES Check the line between EXT8(J505) and IC3302.
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