Analysis of detection method of short circuit fault of color LED display

　　Full-color LED display is an electronic product,in the process of use,because of the operation method or some other considerable reasons,will cause some fault phenomenon,today follow Ddon Visual to see,full-color LED display short-circuit should be how to detect it:

　　1,the voltage drop detection,the multimeter is adjusted to the diode voltage drop detection committee,because all ics are composed of basic components,so when the current through a needle,there will be a voltage drop on the pin,usually,the same plug of the plug integrated circuit similar,according to the voltage drop on the plug,you can distinguish,but,The operation must be operated in the case of complete power off,this detection method will have some limitations,for example,if the tested equipment is high resistance,then it can not be detected;

　　2.Resistance detection,adjust the multimeter to the resistance file,detect the resistance value from a certain point to another point under normal use of the LED display,and then detect whether the same resistance value on the same circuit board is in normal value,if there is a difference,it can easily identify the fault range;

　　3,short circuit detection,adjust the multimeter to the short circuit detection file,detect whether the LED display has a short circuit,if there is a short circuit need to be dealt with immediately,so as not to burn other equipment,in order to avoid accidents and cause damage to the detection equipment,when the short circuit detection needs to be carried out in the case of complete power off;

　　4,voltage detection,adjust the multimeter to the voltage file,test the point to ground voltage in the fault circuit,if there is a deviation from the normal value,you can determine the fault range;

　　The above is about the short-circuit phenomenon of full-color LED display several detection methods,I hope this article can help you.Shenzhen Ddon Visual focus on high-quality full color LED display R&D and production and sales,if you have related product needs,welcome to call Ddon,we will provide you with perfect product solutions and quality service.