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LC-46X8E/S/RU
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<When EXT7 is used for external input> No picture on the display (11)
The PC (ANALOG) video signal input from EXT7 (D-SUB-15pin-terminal) doesn’t come out in the display.
MAIN_UNIT:
Are the video signal (R, G, B) and the synchronized signal (H/V)
input from pins (1, 2, 3) and pins (13, 14) of EXT7 terminal
(SC1504)?
Are the video signal (R, G, B) and the synchronized signal (H/V)
input from pins (1, 2, 3) and pins (13, 14) of EXT7 terminal
(SC1504)?
YES
Check the connection and setup between SC1504 and its cir-
cumference circuit as well as the external HDMI devices.
(IC1503, etc.)
cumference circuit as well as the external HDMI devices.
(IC1503, etc.)
NO
Are the video signal (R, G, B) and the synchronized signal (H/V)
input from pins (U8, Y7, W10) and pins (V10, U10) of IC3301
(VIDEO PROCESSOR)?
input from pins (U8, Y7, W10) and pins (V10, U10) of IC3301
(VIDEO PROCESSOR)?
YES
Check the line between SC1504 and IC3301.
NO
Refer to “The picture doesn't appear in all modes.”
<When EXT8 is used for external input> No picture on the display (12)
The component video signal input to EXT8 doesn’t come out in the display.
TERMINAL UNIT:
Is COMPONENT video signal (Y, Pb, Pr) input to pins (6, 5, 4) of
EXT8 terminal (J508)?
Is COMPONENT video signal (Y, Pb, Pr) input to pins (6, 5, 4) of
EXT8 terminal (J508)?
NO
Check the connection of J508 and the external input device.
YES
Is COMPONENT video signal (Y, Pb, Pr) input to pins (33, 35,
37) of IC506 (VIDEO SELECTOR)?
37) of IC506 (VIDEO SELECTOR)?
NO
Check the line between J508 and IC506.
YES
Is detection signal (COMP1_PLUG) of the COMPONENT video
signal from pin (7) of EXT8 terminal (J508) normal?
(When connecting terminal: 7V, When opening: 0V)
signal from pin (7) of EXT8 terminal (J508) normal?
(When connecting terminal: 7V, When opening: 0V)
NO
Check from EXT8 terminal (J508) to pin (38) of IC506.
YES
Is COMPONENT video signal (Y, Pb, Pr) output from pins (60,
59, 58) of IC506 to pins (6, 8, 10) of the connector (SC501)?
59, 58) of IC506 to pins (6, 8, 10) of the connector (SC501)?
NO
Check the line between IC506 and SC501.
(Q516, Q518, Q520, etc.)
(Q516, Q518, Q520, etc.)
MAIN UNIT:
YES
Is COMPONENT video signal output from pins (6, 8, 10) of the
connector (SC1101)?
connector (SC1101)?
NO
Check the connector (SC501/SC1101)
YES
Is COMPONENT video signal input to pins (W6, Y9, W8) of
IC3301 (VIDEO_PROCESSOR)?
IC3301 (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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