LG 42LA86 Series Service Manual page 120

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
LOGO LED
Error
B. Power error _No power
Check front display LED
Established
2012. 12 .06
date
Revised
date
You can set the LG Logo Light
to on or off by selecting OPTION
in the main menus.
Front LOGO LED control in the status of
ST-BY Condition:
Menu  Option  LG Logo Light
 Brightness(OFF,LOW,MIDDLE,HIGH)
Front LOGO LED control in the status of
Power On Condition:
Menu  Option  LG Logo Light
 Duration(off, off after10min)
A17