No stand-by light.
Symptom
No ST_BY light after connecting the power?
No ST-BY light after turning off the power with remote control?
※ Location of ST-BY light varies depending on models, or LG logo or red LED is located at the center or right bottom of display.
How to fix
Non-SMART
If power cable connection and AC power are normal, check the following menu setting.
※ This function may not be available for some models.
[Menu] → [Setting] → [General] → [Front indicator] → [Standby light] : ON
2012~2013 smart TV
[Home] or [Smart]→[Setting] →[General] →[Standby light] →[ON]