Is the power plug pulled out? Insert the power plug. Press the power button of the remote control. For 12V use, check battery charge.
This problem occurs for a brief time in the process of image elimination processing to hide temporary screen noise that occurs when the power is turned on. But if the screen does not come after 1-minute contact our service support team.
Perform brightness adjustment or Contrast adjustment.
Adjust the screen size.
Stop using wireless telephones, hair driers and electronic drills.
Press the PAUSE button. Check if the Pause button is pressed on external equipment.
If the sound still does not work and the other channels are the same after you have done the above, contact our service support team.