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Application and buy large-screen LCD splicing systems engineering signal type devices
Date：2017/12/5 16:16:34 View：2644
Switching, conversion, transmission and other signal equipment, large-screen LCD display wall system in the whole project is a very important part. Making equipment carefully selected when purchasing equipment, to avoid wrong judgments and affect efficiency, following the Shenzhen Science and Technology Co., Ltd. Nanor experience some work experience in engineering projects frontline staff, for customers reference, to customer assistance.
Large-screen LCD splicing systems engineering signaling equipment purchase points:
1, to avoid static electricity can damage the equipment
As some occasions (most) are carpeting the ground, and our basic clothing of chemical fiber, so static moment with us. The static for electronic equipment is very dangerous. Of course, some devices may take protective measures at the input, but RGB (input and output) device not possible because the signal through the protection device will reduce the bandwidth, it is generally not a protective measure. This need is best not to live action when mating signal connector. To turn off the power at the same time (input and output devices) and then connected.
VGA signal interface
VGA signal line interface
2, the best selection of high quality connectors
Currently cohabitation electronic components market, especially in the connector. As a large-screen display system not a problem in the connector links, may appear cheap piece at the time no problem, however, with time, climate change will be oxidized and poor contact phenomena, thus affecting the display. Another impedance matching, are needed in strict accordance with the use of manual input / output impedance matching.
3, the best selection of high-quality video transmission cable
Transmission cable including analog, digital signal transmission cable. When the transmission signal is a computer video, the transmission distance of 3 meters or more, you should use 75-ohm coaxial cable RGBHV. Cable is a big difference, quality cable impedance accurate, should have a good shield, the transmission characteristics meet the requirements. For example, at a higher bandwidth to ensure a relatively low attenuation. Under such conditions a longer distance, we can ensure a clear image.
Transmission cable center conductor is preferably "tinned copper", now on the market most of the core wire is not tinned copper cable but bare copper wire, so easy to produce rust, corrosion and long-term it will cause poor contact , the phenomenon of virtual access. And tinned copper cables will not rust, while joint and tinned copper wire should use special crimping pliers crimp, but also ensure that no rust, ensure stable and clear display signals for a long time.
Buy LCD splicing screen commercial LCD products such resistance, Connaught Technology remind selecting accessories (signal equipment, other external devices) of time to carefully chosen, not only to choose good quality, durable, but also to choose a suitable, generally advise clients In the liquid crystal mosaic manufacturers of professional LCD splicing proposal with the right accessories, in order to avoid the use and sale in the latter part of maintenance more difficult, for the inconvenience.
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