LG 50PC1D Service Manual page 19

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