1. It is necessary to ensure that the power system at the installation site is running flat and well grounded. The grounding resistance should be less than 4 ohms. This is because the resistance of the leakage circuit is relatively low. Only by making the grounding resistance as low as possible can the safety mechanism of the circuit be guaranteed. Not only that, the power supply system should try its best to achieve three-phase balance to ensure that the power of each load is clearly commensurate.
2. If the working temperature of the splicing screen exceeds the load temperature of the chip, the luminous compliance of the splicing screen will quickly droop, causing obvious light attenuation and damage; the splicing screen must be encapsulated with transparent epoxy resin. If the junction temperature exceeds the solid phase transition temperature (125 degree ), the packaging materials will cause the rubber style, and the thermal relaxation coefficient will rise sharply, which will cause the LCD splicing screen to open and become invalid. High temperature will shorten the life of the splicing screen: the life of the LCD splicing screen is emphasized by its light attenuation, that is, the brightness becomes lower and lower with the passage of time, until the fire is finally extinguished.
3. Wiring and trunking requirements: weak current cables (VGA, video, serial cables, etc.). ) Should be opened with strong current cables to avoid signal disturbance. If wiring ducts are used, one wiring duct cannot be shared, and different wiring ducts should be used to spread the wiring. If it is a fixed floor, such as floor tiles and composite wood floors, it needs to have a wiring slot from the signal source (computer VGA signal and video signal) and the master computer to the matrix. The shorter the wiring partition, the better. The single power supply of the splicing unit is 250 watts, and the power supply capacity provided by the user must be greater than 2N250 watts.
4. There should be no strong light within 2-3 meters in front of the screen. If installation is required, a self-operated switch should be installed so that it can be closed at any time. The splicing wall cannot be reflected by the sun; the wall decoration panels around the splicing screen are gorgeous in color, with darker lines, sound-absorbing materials at the right place, and the wall should be matte.
5. Ensure that the working environment of the splicing wall is 20±5, the relative humidity is 10 percent -70 percent , and there is no sign of condensation; however, if there is an air conditioner on site, the air outlet of the central air conditioner should not be close to the screen, and a partition of more than 2.0 meters should be maintained , To ensure that the screen is deformed due to uneven heating and cooling. If there is a split air conditioner, air blowing on the screen is not allowed.
6. The construction site must be clean and dust-free; the ground where the projection unit is installed is flat and firm. It is very good to apply anti-static floor, the earth material does not reflect light. If the LCD splicing screen is installed on the wall, it is necessary to consider whether the wall can meet the load.
As the saying goes, the train runs very fast and is completely consigned to the front belt. Determining the on-site installation environment of the LCD splicing screen is the first step in all splicing screen installation projects, and it is also a very stressful step. Once this step is achieved, the next project will proceed smoothly.
