LG 55QNED81SRA Service Manual page 43

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Standard Repair Process Detail Technical Manual
symptom
Content
Error
A. Video error_Video error, video lag/stop
TUNER input signal strength checking method
Established
date
Revised
date
General  Programmes
Programme Tuning  Manual Tuning
When the signal is strong,
use the attenuator
A3
(-10dB, -15dB, -20dB etc.)
Copyright © 2023 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
A3

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