西門子顯示屏開機面板顯示白屏畫面修復電話

西(xi)門子(zi)觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)專業維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)公司，維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)故障：西(xi)門子(zi)觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)無顯(xian)(xian)示(shi)(shi)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，倫茨（Lenze）亮(liang)度看不(bu)清楚維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，黑屏(ping)(ping)(ping)(ping)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，花屏(ping)(ping)(ping)(ping)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，白(bai)屏(ping)(ping)(ping)(ping)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液晶屏(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)(shi)豎條(tiao)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液晶屏(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)(shi)橫條(tiao)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，液晶屏(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)(shi)多畫面維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，以及(ji)液晶屏(ping)(ping)(ping)(ping)顯(xian)(xian)示(shi)(shi)疑難雜(za)癥(zheng)均可維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)通訊不(bu)上維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)開機走一半(ban)不(bu)動(dong)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，AB觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)開機不(bu)能(neng)進(jin)入程序維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，指(zhi)示(shi)(shi)燈不(bu)亮(liang)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)死機維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，西(xi)門子(zi)觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)燈管(guan)不(bu)亮(liang)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)玻璃爛維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)更(geng)換，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)觸(chu)(chu)摸(mo)(mo)偏(pian)移維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)不(bu)能(neng)觸(chu)(chu)摸(mo)(mo)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)一半(ban)可以觸(chu)(chu)摸(mo)(mo)另一半(ban)不(bu)能(neng)觸(chu)(chu)摸(mo)(mo)維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)不(bu)能(neng)校準維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)無背光維(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)高壓板銷售更(geng)換，觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)(ping)燈管(guan)銷售更(geng)換

西門子觸摸屏(ping)維修(xiu)SCD1900

故障現象：通電DC24V，屏幕無光(guang)，電流約230mA

修復過程(cheng)：用手觸摸(mo)屏幕，蜂鳴(ming)器有響應，說(shuo)明(ming)(ming)程(cheng)序運(yun)行(xing)正(zheng)(zheng)常(chang)。量高壓(ya)條12VDC電壓(ya)正(zheng)(zheng)常(chang)，控制電壓(ya) ENABLE低有效為低電平正(zheng)(zheng)常(chang)。說(shuo)明(ming)(ming)故(gu)障(zhang)在高壓(ya)發(fa)(fa)生電路或(huo)燈(deng)管(guan)已(yi)經損壞(huai)。拆開(kai)發(fa)(fa)現燈(deng)管(guan)一頭已(yi)經發(fa)(fa)黑，更(geng)換燈(deng)管(guan)后仍然(ran)無光，檢查高壓(ya)變壓(ya)器也已(yi)損壞(huai)。維修更(geng)換，接(jie)好(hao)線后固定，通電正(zheng)(zheng)常(chang)，故(gu)障(zhang)排除

二、西門子觸摸(mo)屏維修TP270

故障現象：通電后屏(ping)幕無(wu)顯示，電流約100mA

修復(fu)過(guo)(guo)程：用(yong)手觸(chu)(chu)摸(mo)屏(ping)(ping)幕，蜂鳴器無響應，說(shuo)明程序運(yun)行不正(zheng)常(chang)。萬用(yong)表(biao)測量幾組電壓3.3V、5.1V、 12V都正(zheng)常(chang)。據用(yong)戶(hu)反映，用(yong)戶(hu)發(fa)現觸(chu)(chu)摸(mo)屏(ping)(ping)故障后曾試圖維修，在通(tong)電的過(guo)(guo)程中，出(chu)現過(guo)(guo)一(yi)次(ci)正(zheng)常(chang)的情況，但斷電后再次(ci)通(tong)電就不行了。分析芯片某個腳位有虛 焊(han)，西門子顯示屏開機面板顯示白屏畫面修復電話使(shi)得(de)總線錯誤(wu)，從而程序不能跑動。遂用熱(re)風(feng)槍對密(mi)腳(jiao)芯片(pian)焊腳(jiao)加熱(re)，同時用鑷子按壓芯片(pian)，使(shi)焊腳(jiao)和錫重新(xin)熔合。經過以上處理后，重新(xin)開機(ji)，電(dian)流上升到(dao) 470mA，一(yi)切正常。