Its structure is easy to see, it is used to separate the device brightness and color output. Why do this? This is designed primarily to overcome interference composite output video program when the luminance and chrominance. Luminance signal bandwidth of radio and television in general is 6MHz, while the domestic standard PAL color signal bandwidth of 1.5MHz. Composite video output signal is 4.43MHz chroma subcarrier wave frequency is placed between the video luminance signal, chroma demodulation display output, the chroma subcarrier filtered out from the composite video signal, so that you may lose luminance signal 4.43MHz ± 0.75MHz frequency, high-temperature line motor UL specializes in the supply, reduces the level of clarity. In addition, not completely filtered chrominance subcarrier may interfere with the luminance channel, whereas in the edge of the luminance signal is entered 4.43MHz chroma demodulating circuit, both interfere with each other, reducing the quality of the broadcast. Using S-Video output luminance and chrominance separation can improve the picture quality, which is why some people call it "High Definition output" reasons. First, there is always a lot of connection points, such as wires and cables, wires and switches, wires and electric appliances, wiring trailer coupling, wires and asylum device connection point, etc. These joints and joints on the wire because of the accident prone electrical wiring The other parts have not the same as in the joints, high-temperature line motor UL product type, the insulation is stripped, motor UL high-temperature line, if the cloth bag wrapped and poor collide to produce two lines, it may constitute a short circuit or generate fever EDM Second, vulnerable to excessive contact resistance joints and fever difference in real-time using such measures, nor to 'perfect' if the contact area is smaller than the cross-sectional area of ??the conductor, the credentials and the conductive area is inversely proportional to the resistance of the affair shows that the contact junction point The smaller the area, the motor UL high temperature wire shelf, the greater the resistance; the resistance greater, the more easily a fever so the joints than other parts of the conductor joint Easy fever if better quality, less heat generated, thermal premise, heat The possibility to quickly wrap hair off junction point temperature will not rise too high and cause an accident the other hand, is caused by an accident on the great conductors coupling hook, then the contact area leads up to the equivalent of 1/8 of wire cross-sectional area , such a coupling portion 8 times more resistance both premises, heat is also similar to eight times, the site easy to produce another accident, hook the junctions, the vibration on the outside of the phenomenon, but also to show off even when the situation , it may show a spark, it is likely to cause burning of combustible material around the contact resistance of the joint because of too large, it may have a high temperature, it is possible to make the metal conductors discoloration even melt, causing the conductor insulation and other materials burning fire, fire into UL motor accident hot line production enterprises, Xu Chong-electronic, high-temperature line motor UL by the Dongguan Shijie Xu Chong-electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) Dongguan, Guangdong, connectors leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Song Chong-wook in electronic products factory leadership with the staff warmly welcome all inquiries negotiations to create electronic products factory Song Chong-wook better future.