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維修動態

常見電源故障 

常見電源故障 




 1.接(jie)(jie)通電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan),指示(shi)燈(deng)不(bu)亮,整機(ji)無(wu)反應引起故障(zhang)的(de)(de)原(yuan)因(yin)有(you):  (1)停電(dian)(dian)(dian)(dian)(dian):保險(xian)絲(si)(si)熔斷(duan);空(kong)氣(qi)開關(guan)跳閘;電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)插(cha)座損壞(huai)。先對上述各(ge)項逐項進行(xing)檢(jian)查,如(ru)果(guo)都(dou)正常(chang),再檢(jian)查洗(xi)衣機(ji)。  值得(de)一(yi)提的(de)(de)是(shi),檢(jian)查電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)插(cha)座是(shi)否有(you)電(dian)(dian)(dian)(dian)(dian)時(shi),大(da)家都(dou)習慣用(yong)(yong)試電(dian)(dian)(dian)(dian)(dian)筆檢(jian)測(ce)(ce),氖(nai)燈(deng)發光就認為市(shi)電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)正常(chang)。當用(yong)(yong)萬(wan)(wan)用(yong)(yong)表交(jiao)流電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)擋檢(jian)測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)腦控(kong)制(zhi)板(ban)(ban)220V輸入端無(wu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)顯(xian)示(shi)時(shi),去測(ce)(ce)量電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)插(cha)座,結果(guo)無(wu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)顯(xian)示(shi)。于是(shi)拆開電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)插(cha)座,發現(xian)其銅片嚴重變形且被跳火氧(yang)化,零(ling)線(xian)接(jie)(jie)頭螺絲(si)(si)松動跳火變黑,產(chan)生接(jie)(jie)觸(chu)不(bu)良。換(huan)上新(xin)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)插(cha)座即(ji)可(ke)(ke)(ke),洗(xi)衣機(ji)無(wu)需修(xiu)理。  (2)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)線(xian)插(cha)刃虛焊或(huo)導線(xian)折斷(duan)(多發生在(zai)三(san)腳(jiao)插(cha)頭根部)導致電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)線(xian)不(bu)通。用(yong)(yong)萬(wan)(wan)用(yong)(yong)表電(dian)(dian)(dian)(dian)(dian)阻(zu)測(ce)(ce)檢(jian)測(ce)(ce),確定(ding)斷(duan)路后更(geng)換(huan)三(san)腳(jiao)插(cha)頭或(huo)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)線(xian)即(ji)可(ke)(ke)(ke)。  (3)直(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)路有(you)故障(zhang)。拆開洗(xi)衣機(ji)蓋板(ban)(ban),卸下電(dian)(dian)(dian)(dian)(dian)腦板(ban)(ban),檢(jian)測(ce)(ce)直(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變壓(ya)(ya)(ya)器(qi),整流二級管、濾波電(dian)(dian)(dian)(dian)(dian)容、三(san)段穩壓(ya)(ya)(ya)器(qi)等,若發現(xian)有(you)損壞(huai)元器(qi)件(jian)(jian),即(ji)可(ke)(ke)(ke)用(yong)(yong)相同規格型號(hao)的(de)(de)新(xin)件(jian)(jian)更(geng)換(huan)。  2.指示(shi)燈(deng)亮,洗(xi)衣機(ji)不(bu)能進入某種(zhong)工(gong)(gong)作(zuo)(zuo)(zuo)狀態  接(jie)(jie)通電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)設定(ding)某種(zhong)工(gong)(gong)作(zuo)(zuo)(zuo)狀態,若電(dian)(dian)(dian)(dian)(dian)動機(ji)、進水(shui)閥、排水(shui)閥三(san)個(ge)負載件(jian)(jian)都(dou)不(bu)能工(gong)(gong)作(zuo)(zuo)(zuo),說明控(kong)制(zhi)負載件(jian)(jian)的(de)(de)幾個(ge)雙向可(ke)(ke)(ke)控(kong)硅都(dou)沒有(you)工(gong)(gong)作(zuo)(zuo)(zuo)。而(er)幾個(ge)觸(chu)發電(dian)(dian)(dian)(dian)(dian)路同時(shi)損壞(huai)的(de)(de)可(ke)(ke)(ke)能性較小(xiao),故障(zhang)原(yuan)因(yin)應該(gai)在(zai)觸(chu)發電(dian)(dian)(dian)(dian)(dian)路的(de)(de)公共(gong)部分(fen),比如(ru)該(gai)電(dian)(dian)(dian)(dian)(dian)路的(de)(de)+5V公共(gong)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)路,查找到損壞(huai)件(jian)(jian)更(geng)換(huan)即(ji)可(ke)(ke)(ke)。


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