Causes and Solutions of the Common Flower Screen on LED Display

　　Some parts of the LED display screen display abnormally, such as black screen and flowery screen

　　Solution: 1. There is a problem with the output: first, check whether the line from the output interface to the signal output IC is connected or short circuited. Secondly, check whether the clock latch signal of the output port is normal. Finally, check whether the cascade output data port between the last drive IC is connected to the data port of the output interface or short circuited.

　　2. Check whether the screen power supply with abnormal display works normally;

　　3. Check whether the signal transmission line is faulty;

　　4. Check whether there is a problem with a single module of the screen.

　　The display 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.

　　The display screen is not normal and the screen is blurred

　　Solution: 1. Whether the LED control card parameters are set correctly and whether there are signals transmitted to the LED control card of the electronic display screen;

　　2. Check whether the communication line is normal and whether the LED control card has signal input;

　　3. Whether the 5V power supply of LED control card is normal;

　　The video card or display does not support high resolution

　　Solution: 1. Restart the computer, continuously press F8, select "Safe 1 Mode" in the advanced startup menu, enter the system, and then enter the display settings in windows. After selecting the 16 color status, click the "Application" button, and click the "OK" button.

　　2. Restart the computer. In Windows normal mode, enter Device Manager, delete the graphics card driver, and restart the computer.

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