LG OLED55B9PTA Service Manual page 47

Standard Repair Process Detail Technical Manual
symptom
Content
Check a voltage of R7624 after turn on the TV.
If the voltage is low, Vx1 is locked.(OK)
Error
error_No
A. Video
Check Vx1 lock
Established
video/Normal audio
A1
date
Revised
date
R7624 : 0[V]
Copyright © 2019 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A1