Why and what should I do if the led display flashes suddenly

Time:2018-11-01 Views:1476

LED display black screen is a common problem.The black screen may be caused by control card, power supply, module, wiring or circuit short circuit.The main reasons for black screen are as follows: 5 points.I hope it will be helpful for you to find out the problems.

1. Please make sure that all the hardware including the control system is properly energized.(note: +5V, no wrong or wrong connections)

2. Check and confirm whether the serial port line used to connect the controller is loose or falling off.(LED display manufacturers suggest that if the screen becomes black during loading, it is probably because of this reason, that is, the screen is black during communication due to the interruption caused by loose communication lines.Do not think the screen is not moving, line can not be loose, please check it, it is very important to you want to solve the problem quickly.

3. Check and confirm whether the HUB distribution board connected with LED display screen and main control card printing board is tightly connected and inserted in reverse.

4. Please check and confirm whether the 50 core wire connecting lingxin control card and the HUB distribution board is loose or inserted in reverse.

5. If your screen interface definition does not match the provided HUB board, there will be a black screen phenomenon, please check again whether your jumper wire is loose, broken or short circuit phenomenon.If you think the signal such as ABCD has been matched one by one, please check again whether the OE signal is connected correctly.(LED display panel manufacturers strongly recommend using the HUB distribution board that matches the screen interface definition)