LG 42LV3500 Service Manual page 84

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
<ALL MODELS>
Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
A. Video error_Video error, video lag/stop
TUNER checking part
Established
date
Revised
date
A9
2011. 2 .07
A9
LGE Internal Use Only