LG 84LM9600 Service Manual page 94

Standard Repair Process Detail Technical Manual
LCD TV
<ALL MODELS>
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
A. Video error_Video error, video lag/stop
symptom
TUNER input signal strength checking method
Content
Established
2010. 12 .14
date
Revised
date

MENU - Set up support - signal test
- select channel
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
A6
LGE Internal Use Only