LG 42LC4R Manual De Servicio página 24

11. In case of becomes unusual display from component 1 mode.
Is video
input of the A/V jack
normal? (Check R248,
R249,R250)
Yes
Change IC(IC500)
12. In case of becomes unusual display from component 2 mode.
Is video
input of the A/V jack
normal? (Check R241,
R242, R243)
Yes
Change IC(IC500)
13. In case of becomes unusual display from RGB mode.
Is
R, G, B input
and H, V sync of the
JK201 normal?(Check R220,
R221, R253, R254,
R255)
Yes
Change IC(IC500)
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Only for training and service purposes
No
Check the input source.
No
Check the input source.
No
Check the input source.
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