Now,Full color LED display screenLED display screen is more and more widely used, and there are more and more LED display screen industries, but there will be some problems in the process of operation. Flower screen is one of them. Then, we will discuss this problem below:
　　
1、 First of all, if the new screen is powered on, it may be that the control card settings are not scanned correctly, or the cable is not inserted correctly (check the cable from the control card to the first board). This problem will also occur if the 5V power supply is connected incorrectly; Next, if you suddenly find this phenomenon after using it for a period of time, in addition to the control card failure, the biggest possibility is that the board is flooded and burns the chip or power supply; Or you can try a display with a DVI interface. First, check whether the DVI output port of the graphics card is normal. Finally, try to unplug the network cable of the receiving card behind the display screen and press the debugging button on the receiving card to see whether the screen body scanning is normal.
　　
2、 Other causes of full-color LED display screen blooming
　　
1. LED display screen flower screen cannot be displayed
　　
Solution: check whether the power supply of the electronic display screen is normal and whether there is 220V strong current input
　　
2. The LED electronic display screen is abnormal, and the flower screen
　　
Solutions: (1) whether the parameters of LED control card are set correctly, and whether there is a signal transmitted to the LED control card of electronic display screen; (2) Check whether the communication line communicates normally and whether the LED control card has signal input; (3) Whether the 5V power supply of LED control card is normal.
　　
3. Part of the screen body of the electronic display screen is abnormal, such as black screen and flower screen
　　
Solutions: (1) check whether the screen power supply with abnormal display works normally; Signal transmission line failure; A single module of the screen fails, and there is a problem with the output; (2) Check whether the line from the output interface to the signal output IC is connected or short circuited; (3) Check whether the clock latch signal of the output port is normal; (4) Check whether the cascade output data port between the last drive IC is connected with the data port of the output interface or is short circuited.
　　
4. Poor heat dissipation of the chassis leads to the rise of the temperature of the graphics card.
　　
Solution: eliminate the heat dissipation problem. Check whether the fan operates normally, add oil to the fan, clean the dust in the chassis, and eliminate the fault after solving the heat dissipation problem.
　　
5. Reinstallation of the system, graphics card or display does not support high resolution.
　　
Solutions: (1) restart the computer, press F8 continuously, select "safe mode" and enter the system in the Advanced Startup menu, then enter the display setting under windows, select the 16 color state, click the "apply" button, and click the "OK" button; (2) Restart the computer. In the normal mode of windows, enter the device manager, delete the graphics card driver, and restart the computer.