在电子电路的设计、安装与调试过程中,不可避免地会出现各种各样的故障现象,所以检查和排除故障是电气工程人员必备的实际技能。面对一个整机电路,要从大量的元器件和线路中迅速、准确地找出故障,这确实不太容易,而且故障又是五花八门,这就要求掌握正确的方法。一般来说,故障诊断过程是:从故障现象出发,通过反复测试,作出分析判断,逐步找出故障原因。下面在具体讨论排除故障方法之前,不防先看一下 In the electronic circuit design, installation and commissioning process, inevitably there will be a variety of fault phenomena, so check and troubleshoot electrical engineering personnel essential practical skills. The face of a machine circuit, from a large number of components and circuits quickly and accurately identify the fault, this is indeed not easy, and the fault is a wide range, which requires the correct method. In general, the fault diagnosis process is: starting from the fault phenomenon, through repeated testing, to make analysis and judgment, and gradually identify the cause of the malfunction. The following troubleshooting methods in the specific discussion before, do not prevent a look