LG 42PC51 Service Manual page 20

8. In the case of an unusual display in SCART 1 mode.
Is the video input
of the A/V jack normal?
(Check R172)
Yes
Sam as Block A
9. In the case of an unusual display in SCART 1_RGB mode.
Is the
video input of
the A/V jack normal?(Check
R110,R170, R171,
R173)
Yes
Sam as Block A
10. In the case of an unusual display in SCART 2 mode.
Is the video input of
the A/V jack normal?
(Check R174)
Yes
Sam as Block A
No
Check the input source.
No
Check the input source.
No
Check the input source.
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