Read Sharp LC-60LE822E (serv.man12) Service Manual online
LC-60LE822E/LC-60LE822ERU
7 – 10
[External input EXT2] No picture on the display (8)
Does not the picture of the CVBS signal input to EXT2 go out?
Is a CVBS signal input to pin (3) of EXT8 (J505)?
NO
Check the setting of an external input device that connects with
EXT2.
EXT2.
YES
Is CVBS signal sent to pin (AE29/CVBS_IN) of IC3302?
NO
Check the line between J505 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT3] No picture on the display (9)
Does not the picture of the component video signal input to EXT3 (15pin-D-SUB terminal) go out?
Is it selected “Component” by the Audio setup under Menu-
Setup-Option-Input terminal setting - Input select?
NO
Set the “Component”.
YES
Is a COMPONENT video signal input to pins (1)/PC_R_COM,
(2)/PC_G_COM, (3)/PC_B_COM of EXT3 (SC501)?
(2)/PC_G_COM, (3)/PC_B_COM of EXT3 (SC501)?
NO
Check the setting of an external input device that connects with
EXT3.
EXT3.
YES
Is COMPONENT signal sent to pins (AJ17/PC_R_CM), (AJ16/
PC_G_CM) and (AJ15/PC_B_CM) of IC3302?
PC_G_CM) and (AJ15/PC_B_CM) of IC3302?
NO
Check the line between SC501 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT3] No picture on the display (10)
Does not the picture of the DVI (ANALOG) video signal input to EXT3 (15pin-D-SUB terminal) go out?
Is it selected “PC (RGB)” by the Audio setup under Menu-Setup-
Option-Input terminal setting - Input select?
NO
Set the “PC (RGB)”.
YES
Are the video signal and the synchronized signal input from pin
(1, 2, 3)/(PC_R, G, B), (14 and 13)/(V, H.Sync) of EXT4 (SC501)?
(1, 2, 3)/(PC_R, G, B), (14 and 13)/(V, H.Sync) of EXT4 (SC501)?
NO
Check the connection and setup with the external DVI devices.
YES
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)?
(AK17/PC__R) (AK16/PC__G) (AH15/PC__B) and (AK14/
PC_HSYNC) (AJ14/PC_VSYNC) of IC3302 (Digital AV decode &
Main CPU)?
NO
Check the line between SC501 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
Click on the first or last page to see other LC-60LE822E (serv.man12) service manuals if exist.