Samsung QE55Q75BAT 55" Q75B QLED 4K Quantum HDR Smart TV (2022)

If the remote control sensor turns off when you press the power button, your TV is correctly connected to the power

supply.

If the TV screen is still blank, softly tap it with your finger. If the part of the screen you tapped on blinks, your TV is

correctly connected to the power supply.

On the remote control, press the button. When the Home Screen appears, the TV is turned on but the connected

external device does not work or is not connected correctly.