LED display is also considered as one of the electronic products, so there will be some problems after long-term use. The most common problem is the flower screen on the LED display. Then, what should I do when the LED display screen appears? The reason why the LED display screen is actually nothing more than: power, adapter, board, the worst result is the LED lamp bead burned out. The most common faults are power supplies, including damage to the adapter, loose power, unstable voltage, weak communication line connections, or broken connectors. Knowing the main reason, we can check the targeted solution step by step:

1. Reconnect the communication line, carefully check the wiring instructions of the LED display, and then carefully connect according to the instructions in the manual. The interface should be tightly inserted to avoid short circuit or poor contact.

2. Use a multimeter to detect the internal connection line of the LED display, find out the bad contact or short circuit, and replace the high quality circuit connection line.

3. Use a multimeter to check if the power of the LED display is grounded. The screen may also be caused by this reason. If there is a problem, ground the power supply.

4. If the above methods can't solve the problem, it may be that the LED lamp bead or the screen is broken. It is recommended to contact the manufacturer for repair as soon as possible to avoid further deterioration of the bad point.