Fault analysis and solution of LED display half bright and half not bright_LED display unit board|LED display software

What should I do if the LED display is only half bright? In reality, many such situations are impossible to start at all. If we want to solve this reason, we must understand the specific reasons that cause the LED display to be half off and half off, and then analyze and investigate through reasonable steps, and then solve it from the source. problem. There are usually the following reasons for the half of the LED display. The troubleshooting methods are as follows: 　　1. The line is loose 　　 (1) First, check whether the serial cable used to connect to the controller is loose or has fallen off. (If it turns black during the initial loading process, it is probably because the communication line was interrupted during the communication process due to the loosening of the communication line. Therefore, the screen turns black. Check first, but this is very important to solve the problem quickly. (2) Check and confirm whether the large LED screen and the HUB distribution board connected to the main control card are tightly connected, and whether they are plugged in reverse. 　　 2. Please make sure that the power supply is problematic. All hardware, including the control system, have been correctly powered on. Is the power light flashing and whether the power supply is faulty? It is worth noting that this phenomenon is usually prone to occur when using inferior power supplies. 　　 Three, LED display unit board Connection problem (1) The vertical direction of several consecutive boards is not bright, check whether the power supply of this column is normal. (2) The horizontal direction of several consecutive boards is not bright, check whether the cable connection between the normal unit board and the abnormal unit board is connected Or whether the chip 245 is normal. 　　 Fourth, software settings or lamp problems If there is a clear boundary between the two, the LED display software or settings may cause a high possibility; if there is an even transition between the two, it may be a lamp problem The above are the reasons and solutions for the LED display that is half bright and half not bright. Check the most likely cause one by one and quickly locate it. If it is due to hardware failure or the problem cannot be confirmed, please contact your service manufacturer for technical information support.