ZD18H410-EA1658-60024

zd18h410-ea1658-60024

触摸屏无响应
 
[故障现象]
 
一台触摸屏不能工作，触摸任何部位都无响应。
 
[故障分析处理]
 
首先检查各接线接口是否出现松动，然后检查串口及中断号是否有冲突，

若有冲突，应调整资源，避开冲突。再检查触摸屏表面是否出现裂缝，如有裂缝应及时更换。

还需要检查触摸屏表面是否有尘垢，若有，用软布进行清除。

观察检查控制盒上的指示灯是否工作正常，正常时，指示灯为绿色，并且闪烁。
 
如果上面的部分均正常，可用替换法检查触摸屏，先替换控制盒，再替换触摸屏，最后替换主机。
 
如果是表面声波触摸屏可进行如下检修：
 
如果是电阻触摸屏可进行如下检修：
 
1）检查触摸屏的连线是否接对，

其中一个连接主机键盘口的连线（从键盘口取5伏触摸屏工作电压）有没有连接，请检查连线。
 
2）观察触摸屏控制盒灯的情况，如果不亮或是亮红灯则说明控制盒已坏请更换。
 
3）如果确认不是以上请况，

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