Mar. 27, 2025
LISN LED
Many people don't know how to solve the problem of LED display screen distortion, because many people think that LED display screen distortion failure is a big problem, and they don't have the confidence to deal with it well. At the same time, they are also afraid that if they do it themselves, they will accidentally touch a switch or component, which will cause the screen distortion to be more serious. In fact, LED display screens are not as delicate as everyone imagines. Although there are many reasons why LED display screen distortion cannot be displayed normally, don't be afraid. Next, follow the editor to repair the LED display screen distortion failure:
Newly installed LED display screen has a screen distortion:
The newly installed small-pitch LED display screen has a screen distortion as soon as it is installed and powered on. Most of the reasons are because the scanning settings of the LED software control card are incorrect, and the cable is not plugged in correctly or the cable is not plugged in place.
If you want to solve this kind of problem, the editor found a monitor that can try to connect to the DVI interface, observe whether the DVI output port of the graphics card has normal signals, and eliminate the signal output problem caused by the graphics card failure. Although the display card technology of LED display manufacturers is mature and the causes of failure are relatively few, this step is still necessary. After all, it is a troubleshooting method, looking for the cause step by step, and not missing any link.
After using it for a period of time, the LED display screen is found to be flowery: If the LED display screen is found to be flowery after using it for a period of time, most of the reasons are control card failure. If the control card fails, most of the reasons are caused by water seepage on the LED display board, which damages the chip, circuit components or power supply.
The LED screen cannot be displayed. Solution: Check whether the power supply of the display is normal, whether there is a strong power input that causes the power supply to be low or high.
2. The LED electronic display screen displays abnormally, blurry and unclear. Solution: Check whether the parameter settings of the LED control card are correct, whether the communication line is communicating normally, whether the cable is loose or has poor contact, plug and unplug the cable signal line, and clean the dirt on the cable contacts.
3. Part of the display screen displays abnormally, such as black screen, flowery and blurred screen. Solution: Check whether the local power supply is working normally and whether the signal transmission line of the screen body fails.
4. If the above operations do not solve the problem of LED display screen flowery, it depends on the next big move. Output-related problems. Check signal output-related problems: Check whether the line from the output interface to the signal output IC is wrong, whether there is a short circuit, etc. Check whether the clock lock at the output port has abnormal signal or insufficient signal.