How to deal with black screen on LED display

In daily life, the failure of "black screen" of LED screen is particularly important. How should we judge the black screen of LED display and how to deal with it? After you read the following five points, you will know the answer.

1. Please make sure that all hardware including the control system has been powered on correctly. Note: +5V, do not connect it in reverse or wrong.

   
   

  2. Check and confirm again and again whether the serial port line used to connect the controller is loose or detached. LED display screen manufacturer recommends: If it turns black during loading, it is probably caused by this reason, that is, the communication line is interrupted due to looseness during communication, so the screen is black. Don't think that the line cannot be loose if the display screen body does not move. Please check it yourself. This is very important for you to solve the problem quickly.

  3. Check and confirm whether the connection between the LED display screen and the HUB distribution board connected to the main control card is tightly connected and whether it is plugged in reverse.

  4. Please check and confirm whether the 50-core cable connecting the control card and the HUB distribution board is loose or plugged in reverse.

  5. If the interface definition of your LED display screen does not match the provided HUB board, a black screen will appear. Please recheck whether your jumper is loose, broken or short-circuited. If you think that the ABCD signals have been matched one by one, please check whether the OE signal is connected correctly.