LG OLED55B9PUA Service Manual page 53

Appendix. Examples of Symptoms(Image error)
Symptom
Item
Name
Cable Color smear
R Color
Cable
Excessive
Cable Screen darkness
G Color
Cable
Excessive
Cause
Poor broken pin of FFC cable
Color is Excessive due to FFC Cable
Contact.
screen is dark due to poor contact due
to disconnection of the FFC cable pin.
G color transient due to poor FFC cable
connection
A - 1/10
Check for poor cable contact
Symptom Image
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