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在录像机的检修中,经常出现保护性停机故障,在这类故障中由于故障种类繁杂,表现各异,已成为检修录像机的难点。笔者根据十余年的数百台录像机的检修经验,浅谈一下自己的体会。一、检修录像机的一个新思路——时间判断法在录像机中,“时间”与“故障”有着内在的联系。我们知道,录像机中均有一个中央处理器(CPU),它像人的大脑一样控制着机械和电路的工作,它与机械系统、键盘操作系统、电路系统等等时时刻刻产生着联系,而CPU的工作频率(即时钟)及工作程序是制造录
In the maintenance of video recorders, protective shutdown often occurs, in which failures due to the variety of different types of performance has become difficult to repair video recorders. The author based on more than ten years of video recorder overhaul experience, talk about your own experience. First, a new idea of overhauling video recorders - Time Judgment In video recorders, “time” and “failure” have an inherent relationship. We know that each of the recorders has a central processing unit (CPU) that controls the mechanics and circuitry of the human brain. It communicates with the mechanical system, the keyboard operating system, the circuitry, and so on all the time, CPU operating frequency (ie, clock) and the working procedure is the manufacturing record