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在日常X线机故障中,其中有接触不良所造成的故障就占较大比例,下面就我们在修理过程中碰到的二例故障及检修报告如下: 例一: 故障现象:透视正常,点片及上球管、断层床球管摄片时,当按下曝光按钮“PA”时,控制台出现“哒哒”的响声,同时曝光指示灯随着控制台响声闪烁。照片质最差,显示曝光不足。 检修:打开控制台盖板,用万用表电压挡测量031、032即P_1、P_2之间的电压,按下“PA”,万用表电压指示值约正常时的一半,并发现控制台的响声是由DJ继电
In the daily X-ray machine failure, which caused by a bad connection accounted for a large proportion of failure, the following we encountered in the repair process of the two cases of failure and maintenance reports are as follows: Example 1: Failure phenomenon: perspective normal point When the exposure button “PA” is pressed while the tube and the tomogram are being taken, the console “click” sounds, and the exposure indicator flashes as the console sounds. The worst photo quality shows underexposure. Maintenance: open the console cover, with a multimeter voltage block measurement 031,032 that P_1, P_2 between the voltage, press the “PA”, multimeter voltage indicator about half of normal and found the console sound is DJ Relay