1故障一开机后，按程序操作，荧屏不出现主菜单，加样器、试剂选择器不工作。故障原因及排除：由于电源电压高，机内保险丝烧坏，电脑部分线路供电短路。切断电源，拆下机盖，换上同规格保险丝。开机后，荧屏出现主菜单。2故障H机器在运行中，偶然出现加样器针头向下吸标本后， 1 After the fault is turned on, press the program to operate, the main menu will not appear on the screen, and the sampler and reagent selector will not work. Cause and elimination of the fault: Due to the high power supply voltage, the internal fuse is blown, and the power supply to the computer circuit is short-circuited. Cut off the power, remove the cover, and replace it with the same type of fuse. After starting up, the main menu appears on the screen. 2 malfunction H machine is running, accidentally there is a sampler needle sucking down the specimen,