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ＸＤ—１０心电图机故障检修４例张家口医学院设备科李春花１．故障现象：开机后，ＢＪ（定标及封闭）置定标位置时。打不出ｌｍＶ定标，描记为一光滑直线。分析检修：根据此故障现象分析有三种可能原因：（１）定标电路本身有故障；（２）放大级电路有故障；（３）记录器...
XD-10 electrocardiograph troubleshooting 4 cases Zhangjiakou Medical College Li Chunhua 1. Symptoms: After powering on, BJ (calibration and closure) sets the calibration position. No lmV calibration is available and the trace is a smooth straight line. Analysis and maintenance: According to this fault phenomenon analysis there are three possible reasons: (1) the calibration circuit itself is faulty; (2) amplifier stage circuit is faulty; (3) recorder...