Sharp LC-37D44E Service Manual page 56

LC-37D44E/S/RU-BK/GY
SCART2:
No picture from EXT3 appears on EXT2- connected monitor.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ... Set it to "CVBS", "Y/C" or "RGB".
2) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
3) When the monitor picture is not sent and is not displayed on the monitor, refer to "No picture" for each terminal.
4) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is CVBS signal output into pin(19) of SC1101(SCART2)
from pin(2) of IC1101(SW)?
Is CVBS signal output into pin(194) of
IC3001(MAIN_MICON) from pin(6) of IC1101?
Is CVBS signal output into pin(194) of IC3001 from
pin(6) of IC1101(VIDEO_SELECTOR)?
Is CVBS signal output into PIN(1) of IC1001 from
PIN(10) of connector P1001?
Check the setting of an external input device that con-
nects of SC1102.
MINI_AV_UNIT:
Is the video signal output into PIN(10) of connector
SC1001 from PIN(6) of input terminal J1002?
Check the setting of an external input device that con-
nects of J1002.
<During external connection> No picture on the monitor (4)
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
NO
Check the setting of an external input device that connects of SC1101.
Check the line between IC1101 and SC1101.
Check power supply of IC3001 (MAIN_MICON) and peripheral circuits.
Check IC1001 and its peripheral circuits.
(SV1JSW_LINE, EXTDTV_LINE)
Check the connector SC1001/P1001.
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