Analysis of the problem that the LED display does not work and the green light flashes

The LED display does not work, and the green light flashing on the display is generally caused by the following problems; 1. The cause of the failure: 1) There is no power supply to the screen; 2) The network cable connection is not good; 3) The receiving card has no power supply or the power supply voltage is too low; 4) The sending card is broken; 5) The signal transmission intermediate equipment is connected or faulty (for example: function card, optical fiber transceiver box); 2. Troubleshooting method: 1) Check and confirm that the power supply of the screen is normal; 2) Check and reconnect the network cable; 3) Guarantee The DC output power of the power supply is 5-5-5.2V; 4) Replace the sending card; 5) Check the connection or replace the function card (optical transceiver box). If the above operations still cannot solve the problem, you can contact the phone number above the company, and we provide 24-hour free professional technical support services. LED display technical problems, welcome to inquire! .