What should I do if the LED display is only half bright? In reality, many situations like this 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 bright, and then analyze and troubleshoot through reasonable steps, and then solve the problem from the source. . There are usually the following reasons for the half-brightness of the LED display. The troubleshooting methods are as follows:
LED display
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 turned black. Check it first, but it is important to solve the problem quickly.
(2) Check and confirm whether the HUB distribution board connected to the LED screen and the main control card is tightly connected and whether it is plugged in reverse.
2. Power supply problem
Please make sure that all hardware including the control system has been powered on correctly. Whether the power light is flashing, whether the power supply is faulty, it is worth noting that this phenomenon is usually prone to occur when using a low-quality power supply.
LED display
3. LED unit board connection problem
(1) The longitudinal direction of several consecutive boards is not bright, check whether the power supply of this column is normal.
(2) If several consecutive boards do not light up in the horizontal direction, check whether the cable connection between the normal unit board and the abnormal unit board is connected; or whether the chip 245 is normal.
Winbond Ying LED Display
4. Software settings or lamp problems
If there is a clear separation between the two, the possibility of software or settings is high; if the transition between the two is even, 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 out the most likely causes one by one and locate them quickly. If it is due to a hardware failure or the problem cannot be confirmed, please contact your service manufacturer for technical support.
