2 How to solve the problem of LED electronic screen Huaping Huaping full-color LED electronic screen does not display a variety of reasons, here full-color LED electronic screen Huaping how to solve a summary. The need to address issues of common LED Huaping need to do the following five elements: 1, LED electronic screen the video can not display Solution: Check the electronic display indoor led display power supply is normal, if there is strong 220V AC input 2, LED electronic screen display is not normal Huaping solution: (1) LED control card parameter settings are correct, there is no signal is transmitted to the electronic display LED control card; (2) the communication line is normal communication led, view LED control card has a signal input; (3 ) Are LED control card 5V power supply is normal; 3, the electronic display section Screen display is not normal, such as black screen, the video Solution: Look at the display screen body power supply abnormality is working; the signal transmission line fault; Screen single module failure. A. output is above problems we talked about a lot of LED failure is usually routine inspection and testing of the LED can not be found. In addition to electrostatic discharge, high current (caused by excessive junction temperature), improper use of external force, etc., many LED failure at high temperatures, low temperatures, rapid temperature changes or other adverse conditions led display price due to LED chip, ring differences in thermal expansion coefficients of epoxy resin, brackets, inner lead, solid crystal plastic, PPA cup, etc., caused by different internal stresses generated, therefore, quality testing LED is a very complex task. led lights, high Jinliang photovoltaic (certified), led by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.gjlled.cn) is an industry leader in Jinan, Shandong, liquid crystal devices, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Gao Jin photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high gold Photoelectric better future.