Analysis of five full color LED display screen factors and Solutions

First, part of the display is abnormal, such as black screen, flower screen.

Solution:

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

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.

Second, the display screen cannot be displayed.

Solution: check whether the power supply of the electronic display is normal and whether there is a strong power input of 220 v.

Third, the display screen display is not normal and the flower screen.

Solution:

1. Whether the parameter setting of LED control card is correct, and whether the signal is 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;

Fourth, the graphics card or display does not support high resolution.

Solution:

1. Restart the computer, press the F8 key continuously, in the Advanced Startup menu, select enter "safe mode" to log in to the system, then enter the display setting under windows, select 16 color status, click "application" button, and click "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.

Fifth, the chassis heat dissipation is not good, resulting in the graphics card temperature rise.

Solution: eliminate the heat dissipation problem.

Check whether the fan runs normally, add oil to the fan, clean the dust in the case, and solve the problem of heat dissipation.