LG 75UM7570AUE Service Manual page 66

Standard Repair Process Detail Technical Manual
symptom
Content
<ALL MODELS>
Error
B. Power error _Off when on, off whiling viewing
POWER OFF MODE checking method
Entry method
1. Press the IN-START button of the remote
control for adjustment
2. Check the entry into adjustment item 3
Established
date
Revised
date
A20
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Only for training and service purposes.
A20