300ＳＣＴ机控制台上的照相按键长期频繁应用可至其损坏,在无法修复又无备件情况下会给工作带来不便。现将我室照相线路故障应急处理方法介绍如下。故障:控制台照相键[ＥＸＰＯ]按下后回弹失灵,仅其指示灯亮但不触发曝光。检修方法:打开控制台面板,卸下照相板ＹＷＰ1404Ａ,发现 The camera keys on the 300SCT console are often used for a long period of time until they are damaged. This can cause inconvenience to the work if the camera cannot be repaired and there are no spare parts. The emergency treatment method of the camera line fault in our room is introduced as follows. Fault: When the console camera button [EXPO] is pressed, it will fail to rebound. Only its indicator light will be on but the exposure will not be triggered. Maintenance method: open the console panel, remove the photo YWP1404A, found