How to solve the problem of flower screen of full color LED display?
1. First of all, if the new screen is installed and powered on, it may be that the control card is set to scan incorrectly, or the cable is not inserted correctly, and the 5V power supply is connected incorrectly. , in addition to the failure of the control card, the biggest possibility is that the board has entered the water and burned the chip or power supply; or you can try to connect a monitor with a DVI interface to see if the DVI output port of the graphics card has a normal signal. Finally, you can try to unplug the network cable of the receiving card behind the display screen and press the debug button on the receiving card to see if the screen scan is normal.
2. Other reasons for the full color LED display screen
1. The led display screen cannot be displayed
Solution: Check whether the power supply of the electronic display screen is normal and whether there is a 220V strong power input.
2. The LED electronic display display is abnormal, and the screen is blurred
Solution: (1) Whether the parameter settings of the LED control card are correct, and whether there is a signal transmitted to the electronic display LED control card; (2) Whether the communication line is normal, check whether the LED control card has signal input; (3) LED control Is the 5V power supply of the card normal?
3. Part of the screen of the electronic display screen is abnormal, such as black screen, blurred screen
Solution: (1) Check whether the power supply of the screen with abnormal display is working normally; the signal transmission line is faulty; the single module of the screen is faulty, 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) Detect whether the clock latch signal of the output port is normal; (4) Detect whether the cascaded output data port between the last driver ICs is connected with the data port of the output interface or is short-circuited.
4. The heat dissipation of the chassis is not good, causing the temperature of the graphics card to rise.
Solution: Eliminate the heat dissipation problem. Check whether the fan is running normally, add oil to the fan, clean the dust in the chassis, and solve the problem of heat dissipation.
5. Reinstall the system, because the graphics card or monitor does not support high resolution.
Solution: (1) Restart the computer, press the F8 key continuously, in the advanced boot menu, select to enter "safe mode" and press Enter to log in to the system, then enter the display settings under Windows, select the 16-color state, and click the "Apply" button, Click the "OK" button; (2) Restart the computer, in Windows normal mode, enter the device manager, delete the graphics card driver, and restart the computer.
