Read LG 50PB4RT-MA (CHASSIS:PP78B) Service Manual online
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8. In the case of becomes unusual display from side S-Video mode(main)
9. In the case of becomes unusual display from SCART 1 mode(main)
10. In the case of becomes unusual display from SCART 1_RGB mode(main)
Is normal video input
of the A/V jack?
(Check R339, R341, L310)
Check the input source
Is normal video
input of the A/V jack?
(Check L111, L112,
L106)
Is normal video
input of the A/V jack?
(Check R102)
Same as Block A
Check the input source
Check the input source
Same as Block A
Same as Block A
YES
NO
YES
NO
YES
NO
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