Smaller storefronts, larger conference rooms, film towns, and airport stations are all equipped with an LED display. Led screen sometimes appears when playing a bright line, encountered this situation when the change how to deal with it? Here is a small editor of the screen technology to teach everyone how to deal with.
The LED display is a complex led lamp beads aggregation screen. Components include cell boards, control cards, power supplies, cabinets, and brackets. A bright line appeared when a friend’s display was recently played. Has not been resolved, Zhongrun Optoelectronics here to share the solution.
First of all, judge whether the power supply has been damaged or not. Because a power supply controls several cell boards at the same time. Can measure whether the output voltage is between 4.9~5.5v. If it is not within this range, it is very likely that the power supply is broken.
Then check the control card is not normal use. First turn on the power, see if the control card indicator light; if not, check whether there is 5V voltage supply, LED electronic screen can not display the content, if you can display the content, the control card display content function is good Then use the control card software to find out what the control card is. If it can be found, it means the function of the control card sending content is good; if it cannot be found, check if the communication line is connected. If it is connected, then Most likely it is a card issue. As long as these two functions are good, the control card is good, otherwise the control card must be replaced.
Finally, it is not good to look at the led cell board. LED display signals are input from one board to another board. Therefore, if there is a board problem, it will affect the back board. Therefore, check whether the unit board is normal one by one.
Even if you can check out the problem, when the unit board is damaged, you should contact the supplier for repair in time to ensure the normal use of LED electronic display.
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