1. Pay attention to the cleaning of the inside of the box.
Cleaning of the outdoor LED display The interior of the cabinet is cleaned. For the display with a lower protection level, especially the outdoor screen, there is dust in the atmosphere entering the equipment through the ventilation holes. For fans and other equipment, it will accelerate wear and tear or even damage, and the dust will fall on the equipment. The surface of the internal control device of the display screen reduces the thermal conductivity and insulation performance. In humid weather, dust absorbs moisture in the air and causes a short circuit. It can also cause mildew on the PCB board and electronic components for a long time, resulting in a decline in the technical performance of the equipment and failure. Therefore, the display The cleaning of the screen equipment seems to be simple, but it is actually a very important way in the maintenance work.
When cleaning the dust inside the display, remember to disconnect the power and operate with care.
2. Clean the surface of the screen.
After long-term use of the LED electronic display screen, the dust and impurities accumulated on the surface of the screen body should be cleaned.
First of all, you should consider purchasing a cleaning kit with better quality. The cost of cleaning liquid generally includes electrolyte, high-purity distilled water, antistatic liquid, etc., which can effectively clean the dust and other stains on the LED screen.
Some people think that water can also be used, and it will not affect the outdoor LED display. However, the cleaning effect of water is relatively poor, and the dust will adhere again after cleaning. At the same time, it should be noted that you must not spray water on the screen, but spray a little cleaning liquid on the cleaning cloth, and then gently wipe it in the same direction. Before cleaning, you need to remove the power cord Pull out.
Finally, use a vacuum cleaner to absorb the water droplets and water marks left by wet cleaning to ensure that the display mask is clean and dust-free.
Third, the fastening of outdoor LED display.
Large-scale LED display is a high-power-consuming equipment. After running for a long time, due to repeated start and stop and running, the terminals of the power supply part will be loose due to cold and heat. Ignite the plastic components next to it, and the signal terminals will also become loose due to changes in ambient temperature, and moisture erosion will lead to poor contact and subsequent equipment failure. Therefore, it is necessary to frequently check the tightness of the connections in the equipment. When the fasteners are adjusted, the force should be even and appropriate to ensure firmness and effectiveness.
4. Appearance inspection of the display screen.
The appearance inspection of outdoor LED display refers to the visual or measurement observation and inspection from the appearance of the display device.
Including whether there are damage and cracks on the outer surface of the equipment, whether the communication and distribution cable lines are normal, and for equipment with high protection levels, although high-reliability components and connectors are selected, their airtightness has become a key factor. Regularly check the integrity of the seal.
For the outdoor screen steel structure, the surface paint and corrosion should be checked, and the heat dissipation and lightning protection equipment of the display screen should be regularly repaired.
5. Recalibrate or upgrade.
Calibration of outdoor LED display The theoretical life of the LED display is 100,000 hours, but in fact, the uniformity of a display will deteriorate after about 5,000 to 10,000 hours of operation, begin to change, and reduce the commercial value. At this time, it is necessary to Consider doing a point-by-point correction too.
Preparations to be done before LED display calibration:
1. Remove the dust and stains on the lamp surface and the mask to avoid its influence on the brightness. If you need to replace the mask, please ensure that the color of the mask is the same as before, otherwise the display will be affected, especially in the daytime, and the correction will not improve much;
2. Replace the modules with poor functions: some lights do not light, there are many dead lights, the scanning is abnormal, the overall light is too dark (the resistance may be wrong), the cable or socket problem affects the display, etc. .
Make sure that the final display, scanning, and screen are normal, and there are no phenomena such as excessive darkness, constant light, and continuous light; at the same time, the system-related content such as the receiving card should be upgraded regularly.
6. Regular inspection.
The operator should also pay attention to the inspection during the operation of the large-scale display screen to observe whether there is abnormal sound, odor, abnormal light and other phenomena. If the display screen is not used for a long time, it should be inspected in advance when it is put into use again.
It is worth noting that if the surface mount LED display is not used for a long time, the reliability performance will be reduced. It is recommended to use it for more than 1 hour per week to reduce the erosion of the display by moisture.
7. Reasonable use.
The proper operation of the LED display also includes playing appropriate and appropriate programs during use. For example, due to the light decay characteristics of the LED lamp itself, long-term playback of the same picture will lead to large local light decay; Various components work at full load and accelerate aging;
At the same time, from an economic point of view, it will consume a lot of electric energy and increase the operating cost, so you should pay attention to it in use.
The above are the precautions for the use of the LED display screen. If it can be checked and maintained regularly and reasonably, I believe that the service life of the display screen will be longer.
