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西門子G150變頻器維修技巧
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首先確(que)認觸摸屏線路連接(jie)是否(fou)正(zheng)(zheng)確(que),如(ru)(ru)不正(zheng)(zheng)確(que),應(ying)(ying)關機(ji)后(hou)正(zheng)(zheng)確(que)地連接(jie)所有線路。然后(hou)檢查主機(ji)中是否(fou)有設(she)(she)備(bei)(bei)與串口資源沖突,檢查各硬(ying)件設(she)(she)備(bei)(bei)并(bing)調整它們,例如(ru)(ru)某(mou)些(xie)網卡安裝(zhuang)后(hou)默認的(de)IRQ為3,與COM2的(de)IRQ沖突,此(ci)時應(ying)(ying)將網卡的(de)IRQ改用(yong)空(kong)閑未用(yong)的(de)IRQ。
西門子G150變頻器維修
7.使用一段時間后觸摸無反應
[故障現(xian)象(xiang)]
一臺(tai)觸(chu)摸屏,開機后正常使(shi)用一段時間后便無反應。
[故(gu)障分析處理(li)]
1)檢查在(zai)Wlndows9x的“顯示器(qi)節能設(she)置(zhi)”中是否設(she)置(zhi)了(le)關(guan)閉硬盤(pan)。方法(fa)是在(zai)桌面單擊(ji)鼠(shu)標右鍵,選擇“屬(shu)性”命令,再(zai)從對話(hua)框中選擇“屏幕保護程序”選項卡,單擊(ji)“設(she)置(zhi)”按鈕(niu),將參數設(she)置(zhi)為除“電源(yuan)方案”為“始終(zhong)打開(kai)”外,其余均(jun)為“從不”。
2)某(mou)些應用(yong)(yong)場(chang)(chang)合,由于接地性(xing)能(neng)欠(qian)佳,會因為(wei)控制盒外(wai)殼布滿了大量的靜(jing)電,從而影響(xiang)控制盒內部的工作電場(chang)(chang),導致觸(chu)摸逐漸失效。此(ci)時(shi)用(yong)(yong)一(yi)根導線(xian)將(jiang)控制盒外(wai)殼接地,重新啟(qi)動即可。