LG 55UJ634 Series Service Manual page 60

Standard Repair Process Detail Technical Manual
Error
Established
A. Video error_Color error
symptom
date
Revised
Content A7
Check Link Cable(Vx1 or EPI) reconnection condition
date
<Vx1 Models> <EPI Models>
Check the contact condition of the Link Cable, especially dust or mis insertion.
A7