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LED advertising screens have been developed in China for more than 20 years, and have been fully covered into people's field of vision. LED display screens of various shapes can be seen everywhere on the road. The content displayed by the LED display screen can be text information or image or video. The situation is revealed. LED advertising screen is not just a simple display product, but a combination of optics, electronic applications, mechanics, and aesthetics.
Let us first analyze the composition of the LED advertising screen, which mainly consists of LED module, LED control card, LED power supply, short cable, long cable, 5V power cable, 220V power cable, strong cable and 380V power. Distribution box, video processor, amplifier audio, heat dissipation, structure and other components.
(1) LED advertising screen appears regular large black is not bright
You can check whether the software partition has coverage. Secondly, check if the network cable and power cable are loose. Check whether the power supply is powered again. If the power supply is normal, you can check whether the receiving card scan is normal. I believe that through this series of troubleshooting schemes, the LED advertising screen can be solved. Effectively excluded.
(2) LED advertising screen in a row of past flashing, similar to garbled situation
This problem can be judged as the signal supply of the single-row LED module is not normal. The elimination method is to directly jump the long-row cable from the receiving card to the LED module with problem. If it is displayed normally, it proves that the LED module is Normally, plug the cable into the right side of the block module to check if the previous module is normal.
If it is normal, then replace the short cable between the two LED modules. If it is found that the block module is not normal, you can determine that the LED module driver chip is faulty, and send it back to the LED advertising screen manufacturer for repair or site. Replace it.
Basically, the LED advertising screen encounters so many problems, or a whole block, or partial, it can be detected according to the above scheme. If you encounter other LED advertising screen failures, you can give feedback to the company that you purchased the LED screen.