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zd18h410-ea1658-60024

觸摸屏無響應(yīng)
 
[故障現(xiàn)象]
 
一臺(tái)觸摸屏不能工作，觸摸任何部位都無響應(yīng)。
 
[故障分析處理]
 
首先檢查各接線接口是否出現(xiàn)松動(dòng)，然后檢查串口及中斷號(hào)是否有沖突，

若有沖突，應(yīng)調(diào)整資源，避開沖突。再檢查觸摸屏表面是否出現(xiàn)裂縫，如有裂縫應(yīng)及時(shí)更換。

還需要檢查觸摸屏表面是否有塵垢，若有，用軟布進(jìn)行清除。

觀察檢查控制盒上的指示燈是否工作正常，正常時(shí)，指示燈為綠色，并且閃爍。
 
如果上面的部分均正常，可用替換法檢查觸摸屏，先替換控制盒，再替換觸摸屏，最后替換主機(jī)。
 
如果是表面聲波觸摸屏可進(jìn)行如下檢修：
 
如果是電阻觸摸屏可進(jìn)行如下檢修：
 
1）檢查觸摸屏的連線是否接對(duì)，

其中一個(gè)連接主機(jī)鍵盤口的連線（從鍵盤口取5伏觸摸屏工作電壓）有沒有連接，請(qǐng)檢查連線。
 
2）觀察觸摸屏控制盒燈的情況，如果不亮或是亮紅燈則說明控制盒已壞請(qǐng)更換。
 
3）如果確認(rèn)不是以上請(qǐng)況，

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