Shenzhen Lianchengfa Technology Co., Ltd.

LED display problems are also ever-changing, so it is not easy to explain a specific problem in detail. In this article, let's talk about the basic steps of LED display maintenance.

1. Determine the type of HUB board used by the module or unit board, so that the interface definition of the cable can be the same.

2. According to different types of modules or unit boards, send corresponding programs to the receiving card to ensure that the modules and unit boards are displayed under the correct program, which is the premise to find out the cause of the failure. Generally, the model of the module or unit board will be printed on the PCB board.

3. Observe the module or unit board phenomenon to determine the initial fault. For example, common blind lights, string dots, small squares, etc.

4. Use a multimeter to find out the fault, mainly using the above short-circuit detection method to detect the gap between the chip and the lamp pin.

5. Check again.

The above articles are the maintenance methods and maintenance steps found by LCF for common faults at critical moments. I hope everyone can help.