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故障现象曝光完毕,控制台出现Err11错误提示(曝光过程中mA过低)。故障分析及检修将BOARD8板上的SW1开关S4拨至“ON”,进行mA调整(70kV,0.1s),I台、Ⅱ台为300mA时,mA窗口应显示50,但实际显示0或1,说明采样板、灯丝板、灯丝、电源板及微机板可能出现故障。为了找到问题所在,笔者
Fault phenomenon Exposure is completed, the console Err11 error message (exposure mA too low). Fault Analysis and Maintenance Turn the SW1 switch S4 on the BOARD8 board to “ON” and make the mA adjustment (70kV, 0.1s). When the I and II units are 300mA, the mA window should display 50 but the actual display shows 0 or 1, Description sample board, filament plate, filament, power board and the computer board may be malfunctioning. In order to find the problem, the author