LG 50LF6090 Service Manual page 58

Standard Repair Process Detail Technical Manual
symptom
<ALL MODELS>
Copyright ⓒ 2015 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
Content
Established
date
Revised
date
MENU - Settings
- select channel
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
19 / 97

support - signal test
LGE Internal Use Only
A6