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

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,选到所需要的电台频率,再经过变频,变成中频信号----送给电视机的中放电路---放大、处理后将音频、视频和同步信号分离----音频信号送给功放放大---推动喇叭发出声音.
----视频信号送视频解码器-分离出红、绿、兰、信号,分别送给显像管的R\G\B电子枪,驱动显像管,还原图像.
-----同步信号分离后,分别送给行、场扫描电路,控制电视机本身的行、场扫描频率和电视台发送过来的频率保持一致.
同时,电视机内部还有电源电路为机器提供能源.
行、场扫描电路为显像管提供各种所需要的电压.行场电路类似人的画笔,根据接收到的电视信号,画出不同的固定画面,以每秒25张的速度（隔行扫描）在荧光屏上显示出来,因为速度很快,肉眼看起来,就是活动画面了.

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.
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