ＥＣＧ— 6 511型心电图机是大、中型及专科医院常用心电检测的设备 ,该机是日本光电公司生产的新型单导心电图机。它操作自如 ,电路结构紧凑 ,性能稳定。我院的该型机在使用了 3年多后 ,最近出现了走纸不转动的故障现象。走纸电路的原理 :石英晶振Ｘ2 0 1产生一个32 76 8ｋＨ The ECG-6511 electrocardiograph is an electrocardiographic device commonly used in large, medium-sized and specialist hospitals. It is a new single-conduction electrocardiograph produced by Japan Optoelectronics. It operates freely and has a compact circuit structure and stable performance. After more than three years of use in this type of aircraft in our hospital, there has been a recent phenomenon that paper feed does not rotate. The principle of paper feeding circuit: quartz crystal X2 0 1 produces a 32 76 8kH