故障现象GE公司Prestige Si数字胃肠机,在正常透视十几个患者后,突然出现图像变暗直至消失,操作面板上触摸屏显示:125kV;0.4mA。故障分析与检修出现故障后关机,间隔半小时重新开机,又能恢复正常使用。后来该故障出现的频率越来越高,逐步发展到透视一两个患者就出现上述故障。 Symptoms GE’s Prestige Si digital gastrointestinal machine, in the normal perspective after a dozen patients, suddenly appeared dark until disappear, the touch panel on the control panel display: 125kV; 0.4mA. Failure Analysis and Maintenance Shut down after a failure, an interval of half an hour to restart, but also to resume normal use. Later, the frequency of the fault appears higher and higher, and gradually developed to see one or two patients on the above-mentioned failure.