英语翻译以传统CRT为例,电视机通过天线或有线电视线,接收到电视台发射过来的高频电视信号---经过高频头选频,选到所需要

For example,in the traditional CRT TV through the antenna or wired line of sight,to receive television high-frequency TV signals come launch - after high-frequency tuner frequency selective,choose the needed radio frequency,again by frequency conversion,become the medium frequency signal - gave television put circuit - amplification,audio,video will be processed and synchronizing signal separation - audio signal to power amplifier amplification - promote trumpet sound。Video signal send video decoder - - separating out red,green,blue,signal,respectively R \ G for tube electron gun,\ B,reduction drive tube images。- synchronized signal,separated respectively to do,field scanning circuit,control TV itself,the field scanning frequency and do the frequency of sending over television remain consistent。Meanwhile,television interior and power circuit for machines provide energy。Line,field scanning circuit as needed to provide the picture of voltage。Do field circuit similar people,according to receive the brush the television signals,draw the different fixed pictures per second,25 beds speed (interlaced scanning) displayed on the screen,because of the speed quickly,naked eye looks,is movement。希望能够帮到你哦!