Dec. 25, 2020
In the process of use, there are many reasons for damage to Outdoor LED Display Screens, which need to be waterproof, dustproof, heat dissipation, corrosion-proof, anti-static, anti-lightning, anti-small animals, and regular maintenance and repair. Generally speaking, the maintenance methods of outdoor LED display are mainly cleaning, tightening, visual inspection and calibration.
For display screens with low protection levels, especially outdoor screens, dust in the atmosphere enters the equipment through vents. Fans and other equipment will accelerate wear and even damage. The dust will also fall on the surface of the internal control components of the display, reducing heat conduction and Insulation performance. In humid weather, dust absorbs moisture in the air and causes a short circuit. It can also cause mildew on PCB boards and electronic components for a long time, resulting in a decline in the technical performance of the equipment and failure. The above is a very important way in maintenance work. When cleaning the dust inside the display, remember to disconnect the power supply and operate with care.
After using the LED display for a long time, clean the dust and impurities accumulated on the surface of the screen. First of all, consider buying a better quality cleaning kit. The cost of the cleaning solution generally includes electrolyte, high-purity distilled water, antistatic fluid, etc., which can effectively clean the dust and other stains on the LED screen. Some people think that clean water is fine, and it will not affect the outdoor LED display. However, the cleaning effect of clean water is relatively poor, and 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 in the same direction, and before cleaning, you need to connect the power cord Pull it out. Finally, use a vacuum cleaner to absorb the water droplets and water marks left after wet washing to ensure that the display mask is clean and dust-free.
Large-scale LED display is a high-power-consuming equipment. After a long period of operation, due to multiple start-stops and operations, the wiring terminals of the power supply part will become loose due to cold and heat. Ignite the plastic components next to the ignition, the signal wiring terminals will also become loose due to changes in the ambient temperature, and moisture corrosion will cause poor contact, which will lead to equipment failure. Therefore, the tightness of the connections in the equipment must be checked frequently. When adjusting the fasteners, the force should be even and appropriate to ensure firmness and effectiveness.
Outdoor LED Display Screens
Refers to visual or measurement observation and inspection from the appearance of the display device. Including whether the external surface of the equipment is damaged or cracked. Whether the communication power distribution cable line is normal. For equipment with high protection level, although high-reliability components and connectors are selected, its airtightness becomes a key factor. Therefore, it is necessary to check the integrity of the seal regularly. For outdoor screen steel structures, check the surface paint and corrosion. . At the same time, overhaul the heat dissipation and lightning protection equipment of the display screen regularly.
The theoretical life of an LED display screen is 100,000 hours, but in fact, a display screen will deteriorate in uniformity after running for about 5,000 to 10,000 hours, start to become flowery, and reduce its commercial value. At this time, point-by-point calibration should be considered.
1.Clean the LED Display, remove dust and stains on the lamp surface and mask, and avoid its impact on 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 it will not improve much after correction
2. Replace modules with poor functions: some of the lights are not lit, there are more dead lights, the scanning is abnormal, the overall lights are too dark, the cable or socket problems affect the display, etc. Ensure that the final display, scanning, and picture are normal, and there is no phenomenon such as too dark, constant light, continuous light, etc.
3. Receiving card upgrade: If the currently used receiving card does not support calibration or the number of loaded points is not enough, you need to upgrade. Due to the risk of dead cards in the upgrade of the receiving card, the customer needs to contact the control system company in advance for the upgrade and related processing.
Finally, the proper operation of the LED display also includes playing appropriate and appropriate programs in use, for example: due to the light attenuation characteristics of the LED lamp itself, long-term playback of the same screen leads to greater local light attenuation; and long-term playback of programs with higher brightness It will cause various components to work at full load and accelerate aging; at the same time, from an economic point of view, it will also consume a lot of electrical energy and increase operating costs, so you must pay attention to it in use.
During operation, the operator should also pay attention to inspections to observe whether there are abnormal sounds, odors, abnormal lights and other phenomena. If the display screen is not used for a long time, it should be inspected beforehand when it is put into use again. It is worth noting that the long-term non-use of the surface-mount LED display will lead to a decrease in reliability. It is recommended to use it for more than 1 hour a week to reduce the corrosion of the display.
The proper operation of the LED Display Screen also includes playing appropriate and appropriate programs during use. For example, due to the light attenuation characteristics of the LED lamp itself, long-term playback of the same screen leads to greater local light attenuation; long-term playback of programs with higher brightness will cause Various components work at full load, accelerating aging; at the same time, from an economic point of view, it will consume a lot of electrical energy and increase operating costs, so you must pay attention to it in use.
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