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西门子工控机故障解决方法
（一）西门子工控机维修之触摸屏常见故障现象
1、工控机开机有显示，但是屏幕很暗，用调亮度功能键调试无任何变化；
2、工控机开机触摸屏白屏（无文字图像）或花屏，但是外接显示器正常；
3、工控机触摸屏上有横向或纵向亮线、亮带；
4、工控机开机屏幕黑屏，但外接显示器图像正常。
5、触摸不了或触摸偏移
解决方法：更换液晶或触摸板 
（二）西门子工控机维修之硬盘常见故障
1、硬盘在运行程序的时候非常慢，而且还伴有死机的情况；
2、工控机启动画面提示找不到硬盘； 
3、硬盘发出嘎哒、嘎哒异常响声，系统无法启动； 
4、硬盘电路板烧毁、冒烟； 
5、误删除、误格式化、误克隆、误分区、病毒入侵等数据的恢复
解决方法：备份数据，重装系统
（三）西门子工控机维修之键盘常见故障现象
1、工控机键盘某个按键失灵； 
2、工控机键盘进水； 
3、工控机键盘自动重复按键。
解决方法：更换键盘
（四）西门子工控机维修之电池常见故障现象
1、工控机电池不充电； 
2、工控机使用电池不能开机； 
3、工控机电池能充电，放电时间特别短。
解决方法：更换新的电池

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