Read LG 32LB9R / 32LB9RA / 32LB9R1 / 32LBRB (CHASSIS:LP78A) Service Manual online
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11. In the case of an unusual display in component 1 mode.
Is the video
input of the A/V jack
normal? (Check R248,
R249,R250)
Yes
Change the IC(IC500)
Check the input source.
No
12. In the case of an unusual display in component 2 mode.
Yes
Change the IC(IC500)
Check the input source.
No
Is the video
input of the A/V Jk202
normal? (Check R241,
R242, R243)
13. In the case of an unusual display in RGB mode.
Yes
Change the IC(IC500)
Check the input source.
No
Is the
R, G, B input
and H, V sync of the JK201
normal?(Check R220, R221,
R253, R254,
R255)
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