常見電源故障　

常見電源故障　

　1.接通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，指示燈不亮(liang)，整機(ji)無反應引起(qi)故障(zhang)的(de)原因有(you)：　　(1)停電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)：保(bao)險絲熔斷；空氣開關(guan)跳閘；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)插(cha)(cha)(cha)座(zuo)損(sun)(sun)壞(huai)。先對上述各項逐(zhu)項進行(xing)檢(jian)(jian)查，如果都(dou)(dou)正(zheng)常，再檢(jian)(jian)查洗(xi)衣(yi)(yi)機(ji)。　　值得一提的(de)是(shi)，檢(jian)(jian)查電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)插(cha)(cha)(cha)座(zuo)是(shi)否有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時，大家都(dou)(dou)習慣用(yong)試電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)筆檢(jian)(jian)測(ce)，氖燈發光就認為市電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)正(zheng)常。當用(yong)萬用(yong)表交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓擋檢(jian)(jian)測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)控(kong)制(zhi)板220V輸入(ru)(ru)端(duan)無電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓顯示時，去測(ce)量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)插(cha)(cha)(cha)座(zuo)，結果無電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓顯示。于(yu)是(shi)拆開電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)插(cha)(cha)(cha)座(zuo)，發現其銅片嚴重變形且被跳火氧(yang)化，零(ling)線(xian)接頭螺(luo)絲松(song)動跳火變黑，產生接觸不良。換上新(xin)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)插(cha)(cha)(cha)座(zuo)即(ji)可(ke)，洗(xi)衣(yi)(yi)機(ji)無需修(xiu)理。　　(2)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)線(xian)插(cha)(cha)(cha)刃虛(xu)焊或(huo)導(dao)線(xian)折斷(多(duo)發生在三(san)腳(jiao)插(cha)(cha)(cha)頭根部(bu))導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)線(xian)不通。用(yong)萬用(yong)表電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻測(ce)檢(jian)(jian)測(ce)，確(que)定斷路(lu)后更換三(san)腳(jiao)插(cha)(cha)(cha)頭或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)線(xian)即(ji)可(ke)。　　(3)直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)有(you)故障(zhang)。拆開洗(xi)衣(yi)(yi)機(ji)蓋板，卸下電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)板，檢(jian)(jian)測(ce)直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)變壓器，整流(liu)(liu)二級(ji)管、濾波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容、三(san)段穩壓器等(deng)，若發現有(you)損(sun)(sun)壞(huai)元器件(jian)(jian)，即(ji)可(ke)用(yong)相同(tong)規格(ge)型(xing)號的(de)新(xin)件(jian)(jian)更換。　　2.指示燈亮(liang)，洗(xi)衣(yi)(yi)機(ji)不能(neng)(neng)進入(ru)(ru)某種工作狀態　　接通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)設定某種工作狀態，若電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動機(ji)、進水(shui)閥、排水(shui)閥三(san)個負載件(jian)(jian)都(dou)(dou)不能(neng)(neng)工作，說(shuo)明(ming)控(kong)制(zhi)負載件(jian)(jian)的(de)幾個雙向可(ke)控(kong)硅(gui)都(dou)(dou)沒有(you)工作。而幾個觸發電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)同(tong)時損(sun)(sun)壞(huai)的(de)可(ke)能(neng)(neng)性較小(xiao)，故障(zhang)原因應該(gai)在觸發電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)公共部(bu)分，比如該(gai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)+5V公共電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，查找到(dao)損(sun)(sun)壞(huai)件(jian)(jian)更換即(ji)可(ke)。