How to repair and clean the LED display?

1. Clean up
For display screens with lower protection levels, especially outdoor screens, dust in the atmosphere enters the device through the ventilation holes, which will accelerate wear and tear or even damage to fans and other devices. Dust will also fall on the surface of the internal control devices of the display screen, reducing the thermal conductivity and insulation performance. In wet weather, the dust absorbs moisture in the air and causes a short circuit; it can also lead to mildew on the PCB board and electronic components for a long time, resulting in a decline in the technical performance of the equipment. error occured. Therefore, the cleaning of the LED display screen seems to be simple, but it is actually a very important part of the maintenance work.

 
2. Fastening
The LED display screen is a high-power-consuming equipment. After running for a long time, due to repeated start-stop and operation, the connection terminals of the power supply part will be loose due to the cold and heat, the contact is not firm, and a virtual connection is formed. In severe cases, it will heat up, even Ignite the plastic components next to it. The signal terminals will also become loose due to changes in ambient temperature and heat, and moisture erosion will lead to poor contact and subsequent equipment failure. Therefore, the connectors of the LED display must be regularly tightened. When adjusting the fasteners, the force should be even and appropriate to ensure firmness and effectiveness.
 
3. Clean the display surface
Visually inspect and inspect the LED display in two states of bright screen and black screen. Including: whether the surface of the display screen is polluted, the purpose is to remove the influence of surface dirt on the luminous characteristics; whether there are damage and cracks on the surface of the display screen; whether the communication and distribution cable lines are normal; Therefore, it is necessary to regularly check the integrity of the seal; for the outdoor screen steel structure, check the surface paint and rust; for the outdoor screen surface pollution is particularly serious, but also Clean the display surface. Targeted cleaning ensures that the cleaning of the LED display can be completed without damaging the LED tube and mask.