论文部分内容阅读
对《家庭电子》2000年第8期刊出的《给电视机增加“消画”功能》一文提出下面的看法:彩电几乎全部的声、图小信号处理供电电源,均取自行输出变压器次级输出的行逆程整流电路。31~53cm的早期彩电除欧洲极个别机型以外都是如此。因此,以下的思路是行不通的。1.通过关断行扫描使CRT停止工作的方式,行扫描不工作,声、图电路无12V供电,不可能收听电视伴音。
On the “home electronics” 2000 eighth issue of “adding TV” anti-painting “function” article put forward the following view: almost all of the TV color TV, small signal processing power supply, take their own output transformer secondary Output line reverse rectifier circuit. Early 31 ~ 53cm color TV in addition to very few models outside Europe are so. Therefore, the following ideas will not work. 1. By turning off the line scan to stop working CRT way, line scan does not work, sound, map circuit without 12V power supply, it is impossible to listen to TV sound.