LC
-
32D65E/RU, LC-37D65E/RU
4 – 14
<LC-32/37D65E>
<During external connection> No picture on the monitor (1)
No picture appears on EXT1/EXT2 connected monitor during the U/V reception.
Is CVBS signal output into pin (19) of EXT1 (SC502) from pin
(67) of IC503 (AV_SW)?
YES
Check the setting of an external input device that connects with
EXT1.
Is CVBS signal output into pin (19) of EXT2 (SC501) from pin
(65) of IC503 (AV_SW)?
YES
Check the setting of an external input device that connects with
EXT2.
NO
Is TUNER_CVBS signal input to pin (24) of IC503 (AV_SW)?
YES
Check the IC503 and their peripheral circuits.
NO
Is TUNER_CVBS signal output from pin (5) of IC7503
(VIDEO_LEV.)?
YES
Check the line between IC7503 and IC503.
NO
Is TUNER_CVBS signal output from pin (6) of TUNRE
(TU7501)?
YES
Check the line between TU7501 and IC7503.
NO
Whether the TUNER circuit operates correctly is checked.
<During external connection> No picture on the monitor (2)
No picture appears on EXT1/EXT2 connected monitor during the DTV reception.
Is CVBS signal output into pin (19) of EXT1 (SC502) from pin
(67) of IC503 (AV_SW)?
YES
Check the setting of an external input device that connects with
EXT1.
Is CVBS signal output into pin (19) of EXT2 (SC501) from pin
(65) of IC503 (AV_SW)?
YES
Check the setting of an external input device that connects with
EXT2.
NO
Is DTV_CVBS signal input to pin (26) of IC503(AV_SW)?
YES
Check the IC503 and their peripheral circuits.
NO
Is DTV_CVBS signal output from pin(Y4) of IC8101(DIGITAL AV
DECODER & MAIN CPU & VIDEO PROCESSER)?
YES
Check the line between IC8101 and IC503.
NO
Check the IC8101 and its peripheral circuits.
Содержание LC-32D65E
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