Read LG MT-42PM13B (CHASSIS:RF-04GC) Service Manual online
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5. In case of occur strange screen into specific mode
5-1. In case of does’t display the OSD
(1) Symptom
Ø
LED is green
Ø
The minute discharge continuously becomes
accomplished from module
(2) Check follow
Is normal the LVDS
cable?
Is normal the VSC
Digital Board?
Is connected the LVDS
cable correctly?
Connect the cable
corretly
Yes
No
No
Yes
Operates the Thine
IC(IC1200)?
Replace the Thine
IC(IC1200).
No
Is normal the Ctrl
Board of Module?
Replace the Ctrl B/D.
No
No
Operates the
IEP(IC1100)?
Replace the
IEP(IC1100).
Yes
No
Operates the
Scaler(IC900)?
Replace
VSC Digital
B/D.
Replace the
Scaler(IC900).
Yes
Yes
No
Replace the cable.
Yes
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