Reasons and solutions for full-color LED display screen not bright

The full-color LED display occupies a very important position for offline advertising, and the coverage rate of the LED advertising display is getting higher and higher, so if the controller setting and the connection line are properly connected, the full-color LED display sometimes does not light up. , What is causing this? How to troubleshoot and solve it? To understand these problems, we must first understand how the LED full-color display is controlled.　　 LED full-color screen control part is divided into: 　　 1, computer + control software + independent graphics card 2, data sending card 3, data receiving card. Its simple control process is: the control software transmits the video or picture data collected on the computer through the independent graphics card to the sending card, and then distributes it to the data receiving card through the sending card. It is also necessary to understand some of the overall reasons why the LED display does not light up.　　The whole screen of the LED display does not light up for the following reasons: 　　1. Data cable problem: the network cable is loose or disconnected, which causes the whole screen to be off. 2. Screen power supply problem: The whole screen power supply problem causes all of them to be off. A problem with the 5v power supply to the first receiving card will cause the receiving card to not work properly, and the whole screen will not light up; 　　3, computer software problems : The computer LED control software is reset and the computer firewall restricts the use of the control software. This kind of problem will occur. 4. Graphics card problem: the graphics card is damaged or the interface is slack, resulting in data collection failure; the graphics card is broken and data collection and sending fail; 　　5. Sending card problem: the sending card is damaged and the data cannot be received or sent; 　　6. Receiving card problem: and sending There is a problem with the first receiving card connected to the card, which may cause the entire screen of the LED display to not light up.　　 The above are the most common reasons that cause the entire screen of a full-color LED display to not light up. Start with the most basic, step by step in-depth investigation. If you still can't solve the problem, you can directly contact your after-sales LED display manufacturer for service.