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LC-46X8E/S/RU
4 – 14
<When EXT3 is used for external input> No picture on the display (7)
The picture video signal (CVBS) input from EXT3 doesn’t come out in the display.
MINI AV UNIT:
Is the CVBS signal input from pin (6) of EXT3 terminal (J901) to
pin (5) of connector (P901)?
Is the CVBS signal input from pin (6) of EXT3 terminal (J901) to
pin (5) of connector (P901)?
NO
Check the line between J901 and P901.
TERMINAL UNIT:
YES
Is the CVBS signal input from pin (5) of connector (P501) to pin
(3) of IC506 (VIDEO SELECTOR)?
(3) of IC506 (VIDEO SELECTOR)?
NO
Check the line between P501 and IC506.
(Connector P901/P501, etc.)
(Connector P901/P501, etc.)
YES
Is the V3_PLUG signal (pin (7)) for connection detection of EXT3
terminal (J901) normal?
(When connecting terminal: 7V, When opening: 0V)
terminal (J901) normal?
(When connecting terminal: 7V, When opening: 0V)
NO
Check J901, pin (2) of IC506 or peripheral circuits.
YES
Is video signal (MAIN_Y/V) output from pin (52) of IC506 to pin
(2) of connector (SC501)?
(2) of connector (SC501)?
NO
Check the line between IC506 and SC501.
MAIN UNIT:
YES
Is video signal (MAIN_Y/V) input to pin (2) of connector SC1101?
NO
Check the connector (SC501/SC1101)
YES
Is video signal (MAIN_Y/V) input to pin (Y4) of IC3301
(VIDEO_PROCESSOR)?
(VIDEO_PROCESSOR)?
NO
Check the line between SC1101 and IC3301.
YES
Refer to “The picture doesn't appear in all modes.”
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