How to pay attention to daily maintenance of outdoor LED screens?

201 views admin 2023-12-08

Outdoor LED displays have the advantages of good stability, low consumption, and wide radiation range. They are the most suitable products for outdoor information dissemination. However, during long-term use, outdoor LED displays will inevitably cause various failures due to factors such as pollution, looseness, vibration, heat, and changes in ambient temperature, which will affect the normal use of the LED display and even cause serious accidents. Therefore, regular maintenance of LED displays is essential. So what is the main daily maintenance of LED display screen?

(1) Reinforcement inspection of internal components and steel frame structure: When receiving early warning of natural disasters such as bad weather, it is necessary to check the stability and safety of each component of the screen, especially the small parts of the steel structure. If If there is a problem, deal with it promptly.

In addition, the LED display screen is a high-power-consuming device. After running for a long period of time, due to repeated starts and stops, the wiring terminals of the power supply part will become loose due to cold and heat, and the contact will not be firm, forming a virtual connection. In severe cases, it will generate heat. , or even ignite nearby plastic components. Signal terminals can also loosen due to changes in ambient temperature, and moisture erosion can lead to poor contact, which can subsequently lead to equipment failure. Therefore, the connectors of the LED display must be tightened regularly. When adjusting fasteners, the force should be even and appropriate to ensure firmness and effectiveness.

(2) Inspection of lightning protection facilities: Check lightning rods and grounding lines regularly. After thunderstorms, the facilities should be tested. If damaged, they must be replaced in time.

(3) Inspection of the control system of the LED large screen: Regularly conduct reliability inspections on the system to ensure its normal operation; all lines and equipment of the large screen must also be inspected regularly to avoid accidents.

(4) Inspection of the screen power supply system: First, check whether the line connections in the distribution box are rusty or loose. For safety, the grounding of the electric box must be normal. Check the power lines regularly to avoid line damage.

Display screen body cleaning After the LED screen has been working for a period of time, the visual viewing effect of the display will be affected due to the influence of the external environment. At this time, we can visually inspect and inspect the LED display screen in two states: bright screen and black screen. Including: whether the surface of the display screen is contaminated, the purpose is to remove the impact of surface dirt on the luminous characteristics; whether there are any damage or cracks on the surface of the display screen; whether the communication distribution cable lines are normal; for equipment with high protection levels, although it is selected for high reliability components and connectors, but their airtightness becomes a key factor. Therefore, the integrity of the seals must be checked regularly; for outdoor screen steel structures, surface paint and rust must be checked; for outdoor screens with particularly serious surface contamination, it is also necessary to Clean the display surface.

LED display screen cleaning is a high-altitude operation and requires a professional cleaning team. The cleaning operation adopts the high-altitude hanging rope method (commonly known as the Spider Man) or the hanging blue, equipped with professional cleaning equipment. The cleaning personnel choose different cleaning agents according to the different dirt on the screen for targeted cleaning, so as to ensure that the LED light tube is not damaged. Complete the cleaning work of the LED display screen under the premise of wearing a mask.

2. Selection of cleaning fluid. Cleaning fluid generally includes electrolyte, high-purity distilled water, antistatic fluid, etc. It is necessary to choose good quality in order to effectively clean dust and other dirt marks on the LED screen.
Cleaning and maintenance are divided into three steps:

Step one: vacuum. First vacuum and sweep away the dirt and dust on the surface of the display mask.

Step 2: Wet cleaning. Be careful not to spray the cleaning liquid directly on the screen. Instead, spray a small amount of cleaning liquid on the cleaning cloth, and then wipe it gently in the same direction. You can also use a soft-bristled brush on a vacuum cleaner to scrub the lamp mask to remove dirt.