故障现象零相合闸电路不起作用，所以不能进行快速摄片。据了解该机从机器安装投入使用零相合闸电路就不能正常工作，经维修站几次修理都没有修好，最后将零相合闸电路短路，电路如下图所示。故障分析与检修检查机器焊开D208阴极和阳极之间的短路线，检查D208完好。用万用表黑 Malfunction The zero-phase closing circuit does not work, so it is not possible to take a quick shot. It is understood that the machine from the installation of the machine to use the zero-phase closing circuit can not work properly, after several repairs by the repair station has not been repaired, and finally the zero-phase closing circuit short circuit, the circuit shown below. Failure Analysis and Inspection Check the machine to solder the short circuit between the cathode and anode of the D208 and check that the D208 is intact. Black with a multimeter