140CRA21210

安装驱动程序后*次启动触摸屏无响应
　　[故障现象]
　　一台触摸屏，安装驱动程序后*次启动触摸屏便无响应。
　　[故障分析处理]
　　首先确认触摸屏线路连接是否正确，如不正确，应关机后正确地连接所有线路。然后检查主机中是否有设备与串口资源冲突，检查各硬件设备并调整它们，例如某些网卡安装后默认的IRQ为3，与COM2的IRQ冲突，此时应将网卡的IRQ改用空闲未用的IRQ。

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