大家電之創維電視介紹
創維電視是從一個小品牌迅速成長為一個大品牌的,它也是唯一一個國產品牌,下面一起裝修網的小編就為大家介紹大家電之創維(wei)(wei)電視(shi)機質量怎樣及創維(wei)(wei)電視(shi)機維(wei)(wei)修(xiu)等注意事項(xiang)。
創維電視機質量怎樣
創(chuang)(chuang)維(wei)(wei)電視(shi)機在(zai)(zai)經過26年(nian)的(de)(de)(de)發(fa)展(zhan)歷(li)史最終(zhong)成長(chang)到今天(tian)的(de)(de)(de)規(gui)模,我們(men)也(ye)不(bu)能否定(ding)(ding)創(chuang)(chuang)維(wei)(wei)電視(shi)的(de)(de)(de)產(chan)品(pin)就真的(de)(de)(de)不(bu)好,如果(guo)在(zai)(zai)發(fa)展(zhan)之初創(chuang)(chuang)維(wei)(wei)電視(shi)質(zhi)量(liang)就被消費(fei)者(zhe)所(suo)否定(ding)(ding),現(xian)在(zai)(zai)也(ye)就不(bu)會有(you)它今天(tian)的(de)(de)(de)知名(ming)度和企業規(gui)模。創(chuang)(chuang)維(wei)(wei)電視(shi)的(de)(de)(de)質(zhi)量(liang)在(zai)(zai)國內品(pin)牌中來說還是很不(bu)錯的(de)(de)(de),同時在(zai)(zai)電視(shi)機生產(chan)上,創(chuang)(chuang)維(wei)(wei)也(ye)具有(you)自己的(de)(de)(de)生產(chan)技(ji)術(shu)。也(ye)許現(xian)在(zai)(zai)創(chuang)(chuang)維(wei)(wei)在(zai)(zai)電視(shi)機的(de)(de)(de)宣傳(chuan)上有(you)夸大其詞的(de)(de)(de)成分(fen),但是我們(men)也(ye)不(bu)能完(wan)全(quan)就將創(chuang)(chuang)維(wei)(wei)電視(shi)質(zhi)量(liang)和生產(chan)技(ji)術(shu)完(wan)全(quan)的(de)(de)(de)否定(ding)(ding)。
說(shuo)到創維(wei)(wei)電視(shi)(shi)售后服(fu)務(wu)(wu)的問(wen)題,其實(shi)并不(bu)是(shi)每一個(ge)地方(fang)的售后服(fu)務(wu)(wu)都是(shi)一樣的,在不(bu)同(tong)的地方(fang),也許(xu)會出現消費者所反應的一些售后服(fu)務(wu)(wu)的問(wen)題,我(wo)們也不(bu)能完(wan)全以偏概全。但(dan)是(shi)不(bu)可否認,在電視(shi)(shi)機維(wei)(wei)修方(fang)面,創維(wei)(wei)電視(shi)(shi)的維(wei)(wei)修確實(shi)應該進行(xing)改進。
總的(de)(de)來說,創維電(dian)(dian)視質量(liang)怎么(me)樣,我們(men)不(bu)能僅(jin)僅(jin)只(zhi)從一(yi)個(ge)方面對它進行(xing)(xing)認(ren)識。電(dian)(dian)視機畢(bi)竟是(shi)電(dian)(dian)子產品,使(shi)用(yong)(yong)(yong)的(de)(de)壽(shou)命(ming)也是(shi)會根據用(yong)(yong)(yong)戶(hu)的(de)(de)愛(ai)護程度和(he)使(shi)用(yong)(yong)(yong)環(huan)境發生變化,所(suo)以如果(guo)用(yong)(yong)(yong)戶(hu)想要購買(mai)創維電(dian)(dian)視還是(shi)在(zai)正規(gui)的(de)(de)商場進行(xing)(xing)購買(mai),在(zai)購買(mai)的(de)(de)同時(shi)多(duo)進行(xing)(xing)電(dian)(dian)視功能和(he)性價比的(de)(de)比對。
創維電視機維修-自動關機
故障現象:電視機(ji)(ji)在開(kai)機(ji)(ji)工(gong)作(zuo)了十多分鐘之后出(chu)現自(zi)動關(guan)機(ji)(ji)的(de)現象,這時(shi)電視機(ji)(ji)的(de)電源指示燈亮(liang)起,關(guan)機(ji)(ji)之后再次(ci)開(kai)機(ji)(ji)故障依舊。
故(gu)障(zhang)檢修(xiu):電(dian)(dian)視(shi)(shi)機(ji)在自(zi)動關(guan)機(ji)之后它的(de)(de)電(dian)(dian)源指示燈(deng)還亮起這(zhe)就(jiu)(jiu)說(shuo)明電(dian)(dian)視(shi)(shi)機(ji)的(de)(de)5V供電(dian)(dian)的(de)(de)電(dian)(dian)壓(ya)(ya)是(shi)正常(chang)(chang)的(de)(de),在重新打開電(dian)(dian)視(shi)(shi)機(ji)之后如(ru)果測(ce)量(liang)出(chu)輸出(chu)管的(de)(de)C極(ji)電(dian)(dian)電(dian)(dian)壓(ya)(ya)和22腳供電(dian)(dian)電(dian)(dian)壓(ya)(ya)是(shi)正常(chang)(chang)的(de)(de),那么就(jiu)(jiu)說(shuo)明它發生自(zi)動關(guan)機(ji)的(de)(de)故(gu)障(zhang)不再開關(guan)電(dian)(dian)源和掃描(miao)電(dian)(dian)路中(zhong),這(zhe)可(ke)能(neng)是(shi)和電(dian)(dian)視(shi)(shi)機(ji)的(de)(de)啟動電(dian)(dian)路有(you)關(guan)。在故(gu)障(zhang)的(de)(de)狀態下,如(ru)果測(ce)量(liang)出(chu)Q609 b極(ji)電(dian)(dian)壓(ya)(ya)不穩定(ding),在關(guan)機(ji)之后檢查C620、ZD601等正常(chang)(chang),它的(de)(de)電(dian)(dian)壓(ya)(ya)阻值(zhi)在1k-8.2k逐漸(jian),那么它出(chu)現故(gu)障(zhang)的(de)(de)原(yuan)因就(jiu)(jiu)應(ying)該是(shi)Q609工作失(shi)常(chang)(chang)最終導致IC201 42腳行啟動電(dian)(dian)壓(ya)(ya)失(shi)常(chang)(chang)而出(chu)現自(zi)動關(guan)機(ji)的(de)(de)現象,在更(geng)換了(le)R623后,故(gu)障(zhang)即(ji)可(ke)排除。
創維電視機維修-電路板燒毀
故(gu)障現(xian)(xian)象:電(dian)視機(ji)(ji)電(dian)路板燒毀,用戶在觀看的過(guo)程中發現(xian)(xian)電(dian)視機(ji)(ji)的圖像(xiang)出現(xian)(xian)失(shi)真、變形的現(xian)(xian)象,同時在聞到了焦(jiao)糊味之(zhi)后(hou)有(you)煙冒出,之(zhi)后(hou)電(dian)視機(ji)(ji)沒有(you)圖像(xiang)和(he)聲音。
故(gu)障(zhang)檢(jian)修(xiu):在(zai)進行檢(jian)修(xiu)時(shi)(shi),如果發現R312之一(yi)腳(jiao)焊(han)點處的(de)(de)(de)(de)(de)電路(lu)板被燒(shao)出(chu)(chu)黑洞,同(tong)(tong)時(shi)(shi)印制的(de)(de)(de)(de)(de)板銅(tong)已經(jing)被燒(shao)斷,經(jing)過初步的(de)(de)(de)(de)(de)檢(jian)查時(shi)(shi)B+負(fu)載(zai)的(de)(de)(de)(de)(de)部(bu)分嚴重短路(lu)所導致(zhi)的(de)(de)(de)(de)(de),這時(shi)(shi)檢(jian)查出(chu)(chu)電路(lu)保險管和(he)限流電阻等沒有出(chu)(chu)現異常(chang)。為了更好的(de)(de)(de)(de)(de)辨(bian)別出(chu)(chu)故(gu)障(zhang)的(de)(de)(de)(de)(de)原(yuan)因,這時(shi)(shi)將B+電源部(bu)分中的(de)(de)(de)(de)(de)L604拆,同(tong)(tong)時(shi)(shi)在(zai)C619的(de)(de)(de)(de)(de)兩(liang)端焊(han)接100W的(de)(de)(de)(de)(de)白熾燈,在(zai)通電之后(hou)檢(jian)檢(jian)測(ce)出(chu)(chu)B+的(de)(de)(de)(de)(de)電壓略微過高而其他的(de)(de)(de)(de)(de)部(bu)件電壓輸出(chu)(chu)非(fei)常(chang)的(de)(de)(de)(de)(de)穩(wen)定,這時(shi)(shi)我們就(jiu)能(neng)辨(bian)別出(chu)(chu)它故(gu)障(zhang)出(chu)(chu)現原(yuan)因應(ying)該是在(zai)負(fu)載(zai)的(de)(de)(de)(de)(de)部(bu)分。
創維電視機維修-屏幕出現水平黑帶
故障(zhang)現象:電視機在觀(guan)看的過程(cheng)中圖(tu)像顯示(shi)不正常,在彩電的熒(ying)屏上出現了水(shui)平(ping)的黑帶。
故(gu)障(zhang)檢(jian)(jian)修:在進行檢(jian)(jian)修的(de)(de)(de)(de)(de)過程中如(ru)果將(jiang)高頻頭拔(ba)除之(zhi)(zhi)后它的(de)(de)(de)(de)(de)黑(hei)帶(dai)現(xian)(xian)象仍然(ran)存在,這時就能(neng)排(pai)除機(ji)外干擾(rao)的(de)(de)(de)(de)(de)可能(neng)性(xing)。電(dian)(dian)(dian)視機(ji)出(chu)現(xian)(xian)黑(hei)帶(dai)常見的(de)(de)(de)(de)(de)故(gu)障(zhang)原因(yin)有(you):場(chang)輸(shu)出(chu)電(dian)(dian)(dian)路濾波不(bu)良(liang)(liang)、開(kai)關電(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)(de)(de)濾波不(bu)良(liang)(liang),使(shi)得干擾(rao)竄入(ru)場(chang)輸(shu)出(chu)電(dian)(dian)(dian)路中、大(da)功率(lv)的(de)(de)(de)(de)(de)元件引腳接觸不(bu)良(liang)(liang)。在檢(jian)(jian)測時在場(chang)輸(shu)出(chu)周邊的(de)(de)(de)(de)(de)元件中沒(mei)有(you)發現(xian)(xian)異常,它的(de)(de)(de)(de)(de)開(kai)關各輸(shu)出(chu)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)(de)(de)濾波也正常,這時在進行檢(jian)(jian)修的(de)(de)(de)(de)(de)時候(hou)可以使(shi)用自(zi)制的(de)(de)(de)(de)(de)維修開(kai)關電(dian)(dian)(dian)源(yuan)(yuan)(yuan)取代原機(ji)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)對整個機(ji)器的(de)(de)(de)(de)(de)供電(dian)(dian)(dian),之(zhi)(zhi)后干擾(rao)小時,這時就能(neng)確認故(gu)障(zhang)發生在開(kai)關電(dian)(dian)(dian)源(yuan)(yuan)(yuan)中,只要更換了冷熱地隔離電(dian)(dian)(dian)容C850之(zhi)(zhi)后故(gu)障(zhang)就能(neng)排(pai)除。
創維電視機維修-圖像亮并且有回掃線
故障現象(xiang):在進(jin)行節目(mu)觀看過程中,發現電視(shi)顯示出(chu)(chu)的圖(tu)像非常的亮,同時(shi)在屏幕上還(huan)有回掃線(xian)的出(chu)(chu)現。
故障(zhang)檢(jian)修:在檢(jian)修的過程中,如果測(ce)量出(chu)KR、KG、KB三個極陰管的電(dian)(dian)(dian)壓都(dou)在50V,出(chu)現(xian)(xian)明顯偏低(di)的現(xian)(xian)象(xiang),同時(shi)測(ce)試出(chu)末(mo)級(ji)的視放IC供電(dian)(dian)(dian)的電(dian)(dian)(dian)壓是正常(chang)的200V電(dian)(dian)(dian)壓,之后(hou)把CRT加(jia)速電(dian)(dian)(dian)壓調低(di),電(dian)(dian)(dian)視機變化不明顯,在維修資料(liao)中顯示(shi)TDA6103Q⑤、⑥的腳(jiao)間(jian)電(dian)(dian)(dian)阻會出(chu)現(xian)(xian)開路的現(xian)(xian)象(xiang),同時(shi)還會造成光柵非(fei)常(chang)的量,同時(shi)也會出(chu)現(xian)(xian)回(hui)掃線,浴室就可以將R514拆下進行檢(jian)測(ce),這(zhe)(zhe)時(shi)它的阻值已經(jing)從原來的220k增長到了(le)500k,更換之后(hou)將加(jia)速電(dian)(dian)(dian)位器調回(hui)到原位,這(zhe)(zhe)時(shi)故障(zhang)即被(bei)排(pai)除。
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