LG 55UB820T Service Manual page 75

Standard Repair Process Detail Technical Manual
Error
A. Video error _Vertical/Horizontal bar,
Established
2014.02.14
symptom
residual image, light spot date
LCD TV
Revised
Content
LCD TV connection diagram (1) A6
date
<ALL MODELS>
As the part connecting to the external input, check
the screen condition by signal
A6