论文部分内容阅读
在此笔者简要地介绍大屏幕彩电检修方法与技巧及注意事项,为了使本文清晰明了,笔者把它们分成几大部分,并力求避免空乏的理论分析。一、电源电路电源电路为电视机的各个部分提供能源,而且工作的时间也最长(只要一开机它就工作),因此它的故障率也最高。现在的大屏幕彩电大都采用开关电源,一般的开关电源是由振荡电路、稳压电路、保护电路等三大部分组成(参见图1厦华XT—7103T机开关电源电路)。
Here I briefly introduce the big screen TV repair methods and techniques and precautions, in order to make the article clear, I divide them into several parts, and strive to avoid the lack of theoretical analysis. First, the power circuit Power circuit for all parts of the television to provide energy, but also the longest working hours (as long as a boot it works), so its failure rate is also the highest. Now most of the large-screen color TV using switching power supply, the general switching power supply by the oscillation circuit, voltage regulator circuit, the protection of the three major components of the circuit (see Figure 1 XORA XT-7103T machine switching power supply circuit).