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The reason and solution of P8LED display screen
by：Demo
2021-07-13
The causes and solutions of P8LED display screens:
1. P8LED display screen can’t be displayed
Solution: Check whether the P8 outdoor display power supply is normal and whether there is a 220V strong current input
2. The P8 electronic screen displays abnormally, and the screen is blurred.
Solution: (1) Whether the parameter setting of the LED control card is correct, and whether there is a signal transmitted to the LED control card of the LED display screen;
(2) Whether the communication line is normal, check whether the LED control card has signal input;
(3) Whether the 5V power supply of the LED control card is normal.
3. Part of the P8 display screen displays abnormally, such as a black screen or a blurred screen.
Solution: (1) Check whether the power supply of the screen body with abnormal display is working normally; the signal transmission line is faulty; the single module of the screen body is faulty and there is a problem with the output;
(2) Detect 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 driver IC is connected to the data port of the output interface or whether it is short-circuited.
4. The heat dissipation of the chassis is not good, which causes 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 up the dust in the chassis, and solve the heat dissipation problem, and then the fault can be eliminated.
5. Reinstall the system, the graphics card or monitor does not support high resolution.
(2) Restart the computer, in normal windows mode, enter the device manager, delete the graphics card driver, and restart the computer.
The above points are basically the causes and solutions of the P8LED display screen. We can investigate from simple to complex, starting from the basics. General problems can be solved. If it is not possible, it is recommended to find professional technical maintenance personnel to solve the problem.
1. P8LED display screen can’t be displayed
Solution: Check whether the P8 outdoor display power supply is normal and whether there is a 220V strong current input
2. The P8 electronic screen displays abnormally, and the screen is blurred.
Solution: (1) Whether the parameter setting of the LED control card is correct, and whether there is a signal transmitted to the LED control card of the LED display screen;
(2) Whether the communication line is normal, check whether the LED control card has signal input;
(3) Whether the 5V power supply of the LED control card is normal.
3. Part of the P8 display screen displays abnormally, such as a black screen or a blurred screen.
Solution: (1) Check whether the power supply of the screen body with abnormal display is working normally; the signal transmission line is faulty; the single module of the screen body is faulty and there is a problem with the output;
(2) Detect 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 driver IC is connected to the data port of the output interface or whether it is short-circuited.
4. The heat dissipation of the chassis is not good, which causes 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 up the dust in the chassis, and solve the heat dissipation problem, and then the fault can be eliminated.
5. Reinstall the system, 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, choose to enter 'safe mode' and press Enter to log in to the system, and then enter the display settings under windows, select the 16-color state, and click 'Apply 'Button, click the 'OK' button;
(2) Restart the computer, in normal windows mode, enter the device manager, delete the graphics card driver, and restart the computer.
The above points are basically the causes and solutions of the P8LED display screen. We can investigate from simple to complex, starting from the basics. General problems can be solved. If it is not possible, it is recommended to find professional technical maintenance personnel to solve the problem.
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