LG OLED55C8PUA Service Manual page 69

Standard Repair Process Detail Technical Manual
symptom
Content
1
2
3
Press the P-ONLY  HDMI HOT  CH + or -
You can view 11 types of patterns using the CH+ or - key
Checking item : 1. Defective pixel
4.Video error (Classification of MODULE or Main-B/D!)
Error
A. Video error_Color error
Adjustment Test pattern
2. Residual image
Established
Revised
3. MODULE error (ADD-BAR,SCAN BAR..)
A19
date
date
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A19