西門子顯示屏開機啟動顯示白屏畫面故障修理

 西門子(zi)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)專業維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)公司(si)，維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)故障：西門子(zi)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)無顯(xian)(xian)示(shi)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，倫茨（Lenze）亮(liang)度看不(bu)(bu)(bu)清楚維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，黑屏(ping)(ping)(ping)(ping)(ping)(ping)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，花(hua)屏(ping)(ping)(ping)(ping)(ping)(ping)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，白屏(ping)(ping)(ping)(ping)(ping)(ping)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液(ye)晶(jing)屏(ping)(ping)(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)豎條(tiao)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液(ye)晶(jing)屏(ping)(ping)(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)橫(heng)條(tiao)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液(ye)晶(jing)屏(ping)(ping)(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)多畫(hua)面(mian)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，以及液(ye)晶(jing)屏(ping)(ping)(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)疑難雜癥均可(ke)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)通(tong)訊不(bu)(bu)(bu)上(shang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)開(kai)機走(zou)一(yi)半(ban)不(bu)(bu)(bu)動維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，AB觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)開(kai)機不(bu)(bu)(bu)能(neng)進入程序維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，指示(shi)燈(deng)(deng)不(bu)(bu)(bu)亮(liang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)死機維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，西門子(zi)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)燈(deng)(deng)管不(bu)(bu)(bu)亮(liang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)玻璃爛維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)更換(huan)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)偏移維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)不(bu)(bu)(bu)能(neng)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)一(yi)半(ban)可(ke)以觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)另一(yi)半(ban)不(bu)(bu)(bu)能(neng)觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)不(bu)(bu)(bu)能(neng)校(xiao)準維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)無背(bei)光維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)高壓板銷售(shou)(shou)更換(huan)，觸(chu)(chu)摸(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)(ping)(ping)(ping)燈(deng)(deng)管銷售(shou)(shou)更換(huan)

故障現象(xiang)：通電后屏幕(mu)無顯示(shi)，電流約100mA

修復過程(cheng)：用(yong)手觸摸(mo)屏幕(mu)，蜂鳴器無響應，說明程(cheng)序(xu)運行不(bu)正(zheng)(zheng)(zheng)常(chang)。萬用(yong)表測量(liang)幾組電壓3.3V、5.1V、 12V都正(zheng)(zheng)(zheng)常(chang)。據用(yong)戶反映，用(yong)戶發(fa)現(xian)觸摸(mo)屏故障后(hou)曾試圖維修，在通電的過程(cheng)中，出現(xian)過一(yi)次(ci)正(zheng)(zheng)(zheng)常(chang)的情況，但斷電后(hou)再次(ci)通電就不(bu)行了。分析芯片(pian)某(mou)個腳(jiao)位有虛 焊(han)(han)，使(shi)得總線錯(cuo)誤，從(cong)而(er)程(cheng)序(xu)不(bu)能跑(pao)動。遂用(yong)熱風槍對密腳(jiao)芯片(pian)焊(han)(han)腳(jiao)加熱，同時(shi)用(yong)鑷(nie)子按(an)壓芯片(pian)，使(shi)焊(han)(han)腳(jiao)和錫重新熔合。經(jing)過以上(shang)處理(li)后(hou)，重新開機，電流上(shang)升到 470mA，一(yi)切正(zheng)(zheng)(zheng)常(chang)。

三、使(shi)用后觸摸(mo)無反(fan)應故(gu)障

西門子顯示屏開機啟動顯示白屏畫面故障修理某些應用場合，由于接地(di)性能不佳，會因(yin)為控制(zhi)盒外(wai)殼(ke)布滿了(le)大量的靜電，從而(er)影(ying)響控制(zhi)盒內部的工作電場，導(dao)致觸摸逐漸失效。此(ci)時用一根導(dao)線將控制(zhi)盒外(wai)殼(ke)接地(di)，重(zhong)新啟動即可。