Why did my LG TV screen go black?

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The reason for this issue is that LG TVs are designed to be energy efficient, and they turn off their screens when they detect no signal. They do this to save power when there’s no signal or low signal. The TV will go black for a few seconds and then turn back on.

What do you do when your LG TV screen goes black?

Unplug the external component (if possible) for 30 seconds. Disconnect the HDMI cable from the TV and move it to an alternate port. Plug the device back in, and change the TV to the new input to see if the issue is resolved.

Why would a TV screen suddenly go black?

The TV is powered but the TV screen goes black and no sound Typically the cause of the malfunction is: a problem in the internal power supply unit, which does not produce all standard operating voltages. a faulty driving board. a problem in the firmware.

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