Power is turned on but no light at front.
Even though you turn on the power, you don’t see power light on.
Even though you turn off with remote control, power light doesn’t indicate anything,
※ The location of power indicator may vary by model, and LG logo or red LED appear in the middle or bottom right corner of the screen.
How to fix
If the power cable connection and AC power is ok, check the Settings as below.
※ It may not be featured in some models.
[Menu] → [SETTINGS] → [OPTION] → [Power Indicator] → [Standby Light] : On
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Smart TV ‘12~13
[Home] or [Smart]→[SETTINGS] →[OPTION] →[LG Logo Light] →[On]