FY51－5C程控X线机是北京万东公司生产的新型500mAX线机，该机采用单片机控制，曝光参数准确，操作方便。现将我们在安装调试过程中遇到的三例故障介绍给同行们，以供参考。故障现象一灯丝不亮。故障分析灯丝不亮的原因可能是球管本身质量问题或控制台灯丝板故障。因球管是新球 FY51-5C program-controlled X-ray machine is a new type of 500mA X-ray machine produced by Beijing Wandong Company. The machine is controlled by a single-chip microcomputer and has accurate exposure parameters and convenient operation. We will introduce three cases of faults encountered during the installation and commissioning process to our colleagues for reference. Failure phenomenon is not a filament. Failure analysis The reason that the filament is not bright may be the quality of the tube itself or the failure of the console filament board. Because the tube is a new ball