"How to Troubleshoot LED Screen Problems" LED screens will inevitably encounter some problems. When encountering a fault, let's talk about the troubleshooting steps. First, let's look at the LED screen's fault phenomenon. If it is a large problem, it is a signal The fault caused by the signal is interrupted and the signal cannot pass through, resulting in no signal behind the LED screen, so it cannot be displayed. To eliminate the signal problem, first check whether the power supply is supplying power to the control card. The power supply part is divided into the receiving card part and the LED module part. First, Check whether the power supply of the control card is normal. If the power supply of the control card is normal, then check whether the power supply of the module is normal. If the LED screen is a local fault, it has nothing to do with the LED control card and power supply. It is the fault of the LED module. The same is true for groups. For example, a receiving card has 6 modules horizontally. If there is a problem with the third LED module when it comes out of the control card, it will affect the signal of the next 3 modules and cannot work normally, so the latter 3 and the third module are not working properly. The solution to the problem is to replace the LED module. The LED screen is actually very simple. The core components are the LED control card, LED module, and dedicated power supply for the LED screen. It is enough to find the faulty parts and replace them. It is enough to send the faulty parts to the LED screen manufacturer for repair. .