LG 42LM6200 Service Manual page 112

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
<ALL MODELS>
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
A. Video error_Video error, video lag/stop
TUNER input signal strength checking method
Established
Revised
date
MENU - Set up
- select channel
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
66 / 153
2010. 12 .14
date
support - signal test
A6
LGE Internal Use Only