LG 50PC1R Service Manual page 21

5. In case of occurring strange screen into specific mode
5-1. In case the OSD does not displayed
(1) Symptom
1) LED is green.
2) The minute discharged continuously becomes
accomplished from module.
(2) Check following
Is the LVDS cable
normal ?
Yes
Is the VSC Board
normal?
Yes
Is the Ctrl Board of
Module normal?
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No
Is the LVDS cable
connected well?
No
Cable inserts well.
No
Does the FIL8668 IC
(IC800) Operates ?
No
Replace FIL8532
IC(IC800).
No
Replace Ctrl B/D.
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Yes
Replace the cable.
Yes
Replace VSC B/D