LG 49UF771V Service Manual page 86

Standard Repair Process Detail Technical Manual
Error symptom
Content
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After turning on the power and disassembling the case, check with the naked eye,
whether you can see light from locations.
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Only for training and service purposes
error_No
A. Video video/Normal audio
Check LCD back light with naked eye
Established
date
Revised
date
A1
A1
LGE Internal Use Only