In the LED display failure, the bright line is the more common one. The appearance of bright lines is like a long scar on the face of a beautiful woman, which will greatly affect people's visual senses. At this time, the effect of the LED display screen is not beautiful. What should I do if a bright line appears on the LED display during use? Don't worry, the following editor will teach you three methods to perfectly solve the trouble of bright lines.

Before solving the problem, you have to know what is the reason for the bright lines on the LED display. This is very important. There are three reasons for the bright lines on the LED display. First: The quality of the product is not good enough. When buying, don't try to buy low-priced and poor-quality products; second: the voltage is unstable. Causes the phenomenon of leakage; third: improper operation method, man-made operation error, affecting the effect of the LED display. After understanding the reason, the editor officially opened the answer mode to solve the troubles of bright lines for everyone.

1. Determine whether the power supply is damaged: First, determine whether the power supply is damaged and whether it can be used normally. Because a power supply controls several unit boards at the same time. You can measure whether the output voltage is between 4.9~5.5v. If it is not in this range, it is likely that the power supply is broken.

2. Judge whether the control card is damaged: first turn on the power and check whether the indicator light of the control card is on; if it is not, check whether there is 5V power supply and whether the LED display can display the content. If it can display the content, explain The control card display content function is good; then use the control card software to find the control card. If you can find it, it means that the control card has a good function of sending content; if you can’t find it, check whether the communication line is connected. Well, if it is connected, it is very likely that there is a problem with the card. As long as these two functions are good, the control card is good, otherwise the control card must be replaced.

3. Check whether the unit board is damaged: The signals of the LED display are all input from one board to another. So if there is a problem with one board, it will affect the back board. So check whether the unit boards are normal one by one.

Summary: After troubleshooting the problem, repairing the damaged situation can make the LED display as beautiful as ever. If you can’t repair it yourself, you can contact the LED display manufacturer, or send it to the manufacturer for repair, or you can ask the manufacturer to solve it on site.