一、故障现象：开机后，显示器屏幕无光栅二、分析检修：打开进水开关，开机后，机器水路部分工作正常，显示器不亮，按另一台同型号血液透析机上显示器屏幕上功能键的显示位置，试着触摸显示器上的相同区域，发现机器反应正常，能按指令工作，断定故障局限在显示器本身。由于 First, the failure phenomenon: After the boot, the display screen without a grating Second, analysis and maintenance: open the water switch, after boot, the machine waterway part is working properly, the monitor is not bright, according to another on the same type of hemodialysis machine on the monitor screen function keys To display the position, try to touch the same area on the display and find that the machine is responding properly and can work according to the instructions, and conclude that the fault is limited to the display itself. due to