Wake up TV

First press the "standby" button on the remote control to wake up the TV.

Select the correct signal source

Press the signal source key again to select the correct signal source.

Check the signal source settings.

If the TV has no signal input and is in the state of protecting the black screen, you need to check the signal source settings and press the signal source key of the remote control to match the correct signal source.

Switch program source

If there is something wrong with the current program source, you can switch to another program channel or change the DVD.

Restore factory settings

If none of the above methods can solve the problem, you can try to restore the factory settings. Turn off the power of the remote control first, then press and hold the "sound mode" key and "setting" key at the same time, and then press the power key until "M 1" appears in the upper left corner of the screen. Then press the volume plus key until "M2" appears, press the volume minus key to select "M2", and then press the volume plus key for a long time until M2 disappears.