Sharp LC-32LE700E Service Manual page 58

LC-32/40/46LE700E/RU/S,LU700E/S,LX700E/RU,LC-52LE700E/RU/S
Is a COMPONENT video signal input to pins (3)/Y, (5)/Pb, (7)/Pr
of EXT3 (J503)?
Is COMP_PLUG detection signal to (AF7/COMP_PLUG) of
IC3302 (Digital AV decode & Main CPU) input from pin(2) of
EXT3 (J503)?
Is COMPONENT signal sent to pins (AJ18/COMP__Y), (AJ19/
COMP__Pb) and (AH19/COMP__Pr) of IC3302
Refer to "The picture doesn't appear in all modes."
Does not the picture of the DVI (ANALOG) video signal input to EXT4 (15pin-D-SUB terminal) go out?
Are the video signal and the synchronized signal input from
pin(1, 2, 3)/(R, G, B), (14 and 13)/(V, H.Sync) of EXT4 (SC501)?
Are the video signal and the synchronized signal input from pins
(AK17/PC__R) (AK16/PC__G)(AH15/PC__B) and (AK14/
PC_HSYNC) (AJ14/PC_VSYNC) of IC3302
(Digital AV decode & Main CPU)?
Refer to "The picture doesn't appear in all modes."
Is a CVBS signal input to pin (6) of EXT8 (J505)?
Is V3_PLUG detection signal input to pin (AJ1/CVBS_PLUG) of
IC3302 (Digital AV decode & Main CPU) from pin(7) of EXT8
(J505)?
Is CVBS signal sent to pin (AE29/CVBS__IN) of IC3302?
Refer to "The picture doesn't appear in all modes."
[External input EXT3] No picture on the display (7)
Does not the picture of the component video signal input to EXT3 go out?
YES
YES
YES
[External input EXT4] No picture on the display (8)
YES
YES
[External input EXT8] No picture on the display (9)
Does not the picture of the CVBS signal input to EXT8 go out?
YES
YES
YES
NO Check the setting of an external input device that connects with
EXT3.
NO Check the line between IC3302 and J503.
NO Check the line between IC3302 and J503.
NO Check the connection and setup with the external DVI devices.
NO Check the line between SC501 and IC3302.
NO Check the setting of an external input device that connects with
EXT8.
NO Check the line between J505 and IC3302.
NO Check the line between J505 and IC3302.
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