LG 47LE5500-MA Service Manual page 81

Standard Repair Process Detail Technical Manual
LCD TV
<ALL MODELS>
Copyright ⓒ 2010 LG Electronics. Inc. All right 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
date
Revised
date
MENU - red key(customer support -
- select channel
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
A6
2010. 2 .19
A6
signal test
LGE Internal Use Only