LG 55LB630V Service Manual page 87

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
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Only for training and service purposes
Error
B. Power error _No power
Check front display LED
Established
date
Revised
date
ST-BY condition: Red
Power ON condition: Turn Off
A17
2014. 01 .20
A17
Front LED control :
Menu  General 
Standby Light
 ON/ Off
LGE Internal Use Only