LG 75UM7570AUE Service Manual page 52

Appendix. Examples of Symptoms(Image error)
Symptom
Item
Name
CABLE Color smear
CABLE R Color Excessive
CABLE Screen darkness
CABLE G Color 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 - 1/11
Check for poor cable contact
Symptom Image
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