Some time ago, the questioner asked how to deal with the LED display screen being distorted, because many people are afraid that they will accidentally touch a switch to make the screen more distorted.
In fact, there are many reasons why the small-pitch LED display screen cannot display normally. The editor has sorted out the reasons for the LED screen distorting and believes that the reasons are as follows:
If the new small-pitch LED display screen is distorted as soon as it is installed and powered on, then most of the reasons are because the LED software control card is set to scan incorrectly, and the other is that the cable is not plugged in correctly.
If the screen distorting phenomenon is found after using it for a period of time, most of the reasons are control card failure. The biggest reason for the control card failure is that the LED screen board is leaking and damages the chip or power supply.
If you want to solve this kind of problem, you can try to connect a display with a DVI interface and check whether the DVI output port of the graphics card has normal signal. In addition, the cause of the small-pitch LED display screen distorting may also be a problem with the graphics card and driver. If it is really a problem with the graphics card and driver, we suggest that you can try to replace the network cable of the receiving card behind the display with the debugging button on the receiving card to see if the display cabinet scans normally.
The last one may be the cause of the small-pitch LED display screen flower screen, which is also shared with you here.
1. How to deal with the LED screen flower screen that cannot be displayed
Check whether the display power supply is normal, whether there is strong power input, and whether it will cause low or high.
2. How to deal with abnormal display, blur and unclear display of LED electronic display
Check whether the parameter settings of the LED control card are correct and whether the communication line is communicating normally.
3. How to deal with abnormal display of part of the display screen, such as black screen, flower screen blur
Check whether the power supply is working normally and whether the signal transmission line of the screen body is faulty.
Finally, the related problems of LED display output.
1. Check whether the line from the output interface to the signal output IC is wrong, whether there is a short circuit or the like.
2. Check whether the clock lock of the output port has abnormal signal problems, and whether there is insufficient signal.