故障现象:计算机系统处于定标状态,开、关放大器电源,该16道基线无起伏波动,定标全部成直线,但每五秒自动滚屏一次正常。　　分析维修:此类故障大多为电极连接盒、放大器、主机各处接口电缆接触不良,或主机内Ｉ/Ｏ卡与其小卡的接触不良。据此重新插接、测试,各接口电缆及Ｉ/Ｏ? Fault phenomenon: The computer system is in the calibration state, and the amplifier power is turned on and off. The 16-channel baseline does not fluctuate. The calibration is all in a straight line, but it is automatically scrolled once every five seconds. Analysis and maintenance: Most of these failures are poor connection of the interface cable between the electrode connection box, amplifier, and the host, or poor contact between the I/O card and the small card in the host. Reconnect, test, and interface cables and I/O accordingly.