LG 55LW9500 Service Manual page 96

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
<ALL MODELS>
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
A. Video error_Video error, video lag/stop
TUNER input signal strength checking method
Established
date
Revised
date
MENU -
- select channel
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
A6
2010. 12 .14
A6
Set up support - signal test
LGE Internal Use Only