Simple problem-solving methods for LED advertising screens
LED advertising screens have been developed in China for more than 20 years and have fully covered people’s vision. Walking on the road, LED advertising screens with different shapes can be seen everywhere. The content displayed can be text information, as well as images or videos. LED advertising screens are not just display products like televisions, but integrate optics, electronic applications, mechanics, aesthetics, and more. During the application process, LED advertising screens are inevitably prone to some malfunctions, such as loose wiring or software operation errors. Below, the editor summarizes the common situations that occur in the daily use of LED advertising screens for timely troubleshooting.
Let’s first analyze the composition of LED advertising screens, which mainly consists of LED modules, LED control cards, LED power supplies, short and long cables, 5V power supply cables, 220V power supply cables, strong cables and 380V strong electricity, distribution boxes, video processors, power amplifiers and speakers, heat dissipation, structure, and other parts.
(1) LED advertising screen appears with regular large black blocks that do not light up
You can check if the software partition is covered, then check if the network and power cables are loose, and then check if the power supply is working properly. If the power supply is normal, you can check if the receiving card scanning is working properly. I believe that through this series of troubleshooting solutions, the LED advertising screen problem can be effectively eliminated.
(2) The LED advertising screen flashes continuously in a row, resembling garbled text
This issue can be determined as abnormal signal supply of a single row LED module. The troubleshooting method is to directly jump the long cable from the receiving card to the problematic LED module. If it displays normally, it proves that this LED module is normal. Then plug the cable into the right side of this module to check if the previous module is normal.
If it is also normal, then replace the short wire between the two LED modules. If one module is found to be abnormal, it can be determined that the LED module driver chip is faulty and sent back to the LED advertising screen manufacturer for repair or on-site replacement.
Basically, there are only so many problems encountered with LED advertising screens, either as a whole or as a part, which can be detected according to the above plan. If you encounter other LED advertising screen malfunctions, you can provide feedback to the company where you purchased the LED screen.
