Read LG 42LF75 / 42LF76 (CHASSIS:LD75B) Service Manual online
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4. In case of occur strange screen into specific mode
1) In case of does't display the OSD
(1) Symptom
1) LED is green.
2) The minute discharge continuously becomes accomplished from module
2) The minute discharge continuously becomes accomplished from module
(2) Check follow
Is normal the LVDS
cable?
Replace Power Board.
Is the LVDS cable connected well?
Cable inserts well.
Yes
No
No
Replace FIL8548 IC(IC700).
No
Yes
Is normal the VSC
Board?
Replace VSC B/D
Operates the FIL8548 IC(IC700)?
Yes
No
Yes
Is normal the Ctrl
Board of Module?
Replace Ctrl B/D.
No
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