你的索尼電視紅燈閃6次,最后查出來是什么故障?怎么修好的?
故障:機(jī)后無圖,無聲,無光,
十幾秒后指示燈由綠燈轉(zhuǎn)紅燈,燈閃6下。
紅燈閃是代表故障代碼,資料得紅燈閃6下是背光沒有工作。
知道位置就好辦了,首先找到背光驅(qū)動IC(LX1692FIDW),背光驅(qū)動IC的6腳和20腳是供電,機(jī)測得20腳電壓5V正常,6腳是延時(shí)供電(機(jī)數(shù)秒后才提供電壓),測得6腳電壓只有0.5V左右,明顯不正常,故障切入就從IC6腳始檢,從6腳一路追,追到電源板和主板間的排線,還沒發(fā)現(xiàn)問題,麻煩了,問題在主板?為了搞清楚問題是否在主板,我把背光驅(qū)動IC6腳的外圍原件斷,直接用導(dǎo)線把6腳和20腳相連接,到相關(guān)資料6腳和20腳電路圖是相連的,所以才如此大膽,接好線后機(jī),背光亮了,圖標(biāo)也出來了,接上信號,圖像和聲音都很正常,排除電源板問題,那么問題就在主板了,沿路檢發(fā)現(xiàn)有串聯(lián)的幾只電阻,還有一只電容,一級一級測電壓,發(fā)現(xiàn)串聯(lián)電阻源頭的電壓有3.3V左右,哈哈,故障范圍縮小了,最后檢發(fā)現(xiàn)一只電容很可疑,不敢冒然焊下電容測量,用刀片割斷與電容有關(guān)的電路,問題終于找到了,用x100電阻檔測出這個(gè)電容漏電有2K左右,還原所有電路(割斷的電容除外),機(jī)試機(jī),圖像出現(xiàn),測得6腳電壓3.3V左右,然后找一廢板拆一個(gè)差不多大小的電容裝上,至于電容容量嘛,漏電了測不出是多大的,也沒圖紙,那就不糾結(jié)了,隨便找只換上,當(dāng)然,得找沒有漏電的,到此故障排除。試機(jī)幾天一切正常。
索尼液晶電視紅燈亮四下什么故障維修
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sony電視機(jī)維修故障步驟_sony電視機(jī)維修技術(shù)指南!
電視機(jī)使用的時(shí)間一長總難免會出現(xiàn)一些故障,就算是質(zhì)量再好的電視機(jī)也不能例外,我們這里提到的sony電視機(jī)也是一樣。sony電視機(jī)是索尼公司生產(chǎn)的產(chǎn)品之一,索尼不僅在電腦生產(chǎn)上技術(shù)非常的先進(jìn),在電視機(jī)生產(chǎn)技術(shù)上同樣是如此。在sony電視機(jī)出現(xiàn)故障之后我們都需要進(jìn)行維修,大家是否知道,sony電視機(jī)維修故障的步驟和方法有哪些呢?現(xiàn)在就來進(jìn)行介紹。
電視機(jī)常見的一些故障是開機(jī)有聲音無圖像、電視機(jī)無圖像無聲音或者不是電視機(jī)有圖像無聲音、電視機(jī)黑黑屏、電視機(jī)自動關(guān)機(jī)、電視機(jī)圖像顯示不正常等,在進(jìn)行電視機(jī)維修點(diǎn)的時(shí)候都是會遇見的問題,不同的電視機(jī)故障它們出現(xiàn)的原因是不同的,所以在維修時(shí)它所使用的維修方法也不相同,在下面總結(jié)了一些sony電視機(jī)維修的方法和步驟,現(xiàn)在我們就具體的來了解sony電視機(jī)維修技術(shù)指南。
1、sony電視機(jī)三無電源和指示燈不亮
機(jī)型:索尼KV-3400RM679液晶電視
故障:三無電源指示燈不亮
維修方法:sony電視機(jī)在開機(jī)之后沒有光柵,同時(shí)也沒有聲音和伴音出現(xiàn),電視機(jī)電源指示燈也不亮。這一故障一般發(fā)生在電源電路,在進(jìn)行檢修時(shí),首先需要檢查的就是電視機(jī)的電源電路。在進(jìn)行檢修過程中,首先需要打開機(jī)蓋,檢查電視機(jī)的電源的保險(xiǎn)絲是否熔斷、電源的濾波電容是不是被C619擊穿。在使用萬用表進(jìn)行測量時(shí),如果發(fā)現(xiàn)IC601第(2)、(3)直通,同時(shí)在進(jìn)一步檢查后發(fā)現(xiàn)C602(1)、(2)腳也被擊穿,從上述中的范圍來看,這一個(gè)電視機(jī)故障是由電視機(jī)自動轉(zhuǎn)換系統(tǒng)故障所造成的。
維修步驟:1、對電路進(jìn)行故障取樣;
2、電源厚膜塊中STR一80145內(nèi)部出現(xiàn)自然損壞。
3、經(jīng)過檢查質(zhì)后,是IC601(STR一80145)內(nèi)部不良,之后進(jìn)行電路更換,將C601、IC602、C619、C618更換,故障即可排除。
2、sony電視機(jī)觀看一段時(shí)間之后黑屏
機(jī)型:索尼KV-34M80液晶電視
故障:電視機(jī)開機(jī)一段時(shí)間之后黑屏
維修方法:電視機(jī)在開機(jī)之后,圖像顯示正常,在播放一段時(shí)間之后,電視機(jī)出現(xiàn)黑屏、有聲音、指示燈閃爍10下,關(guān)機(jī)在開機(jī)后圖像正常。電視機(jī)在出現(xiàn)黑屏?xí)r指示燈閃爍10下,說明電視機(jī)高壓出現(xiàn)問題,這時(shí)我們可以懷疑是電視機(jī)高壓電路發(fā)生虛焊,但是在經(jīng)過補(bǔ)焊之后故障沒有排除時(shí)需要檢查電視機(jī)IC8002外圍有無異常狀況,當(dāng)這一電路出現(xiàn)故障時(shí),就需要對其進(jìn)行更換。更換后故障即可排除。
上面簡單的介紹了sony電視機(jī)遇到兩種問題的維修方式,其實(shí)在進(jìn)行sony電視機(jī)維修的時(shí)候我們還能到sony電視機(jī)的維修點(diǎn)進(jìn)行維修,大家要是不知道sony電視機(jī)維修點(diǎn)在哪里的話,導(dǎo)致總結(jié)了一些索尼電視機(jī)維修的維修網(wǎng)點(diǎn),朋友們快來看看吧。
北京
sony電視機(jī)維修維修點(diǎn)sony電視機(jī)維修電話sony電視機(jī)維修地址
索尼家用電子產(chǎn)品北京特約維修站010-84070408北京市東城區(qū)北門倉6號樓-14
北京索尼產(chǎn)品技術(shù)服務(wù)中心010-68422538北京市海淀區(qū)魏公村路3號
索尼家用電子產(chǎn)品北京特約維修站/td>010-67629881北京市豐臺區(qū)南三環(huán)東路23號1-10
索尼家用電子產(chǎn)品北京市房山區(qū)特約維修站010-69365770北京市房山區(qū)良鄉(xiāng)昊天大街114號5號樓1層4-102室
索尼家用電子產(chǎn)品北京市順義區(qū)特約維修站010-69421525北京市順義區(qū)仁和地區(qū)宏城花園1-6-102室
sony電視機(jī)維修的網(wǎng)點(diǎn)在全國范圍中一共有505個(gè),它的維修網(wǎng)點(diǎn)覆蓋了很多的地區(qū),下面就介紹一下不同地區(qū)的維修點(diǎn)有哪些吧。因?yàn)閟ony電視機(jī)維修點(diǎn)太多,也就不一一進(jìn)行進(jìn)行介紹了,在為大家列舉sony電視機(jī)維修點(diǎn)的時(shí)候就重點(diǎn)介紹一下它的維修點(diǎn)有哪些
sony電視機(jī)維修維修點(diǎn)sony電視機(jī)維修電話sony電視機(jī)維修地址
索尼數(shù)碼產(chǎn)品快修中心上海浦東店021-50327906海市浦東新區(qū)張楊路588號百腦匯浦東店三層PDA3A02-PDA3A03柜位
索尼家用電子產(chǎn)品重慶市江津區(qū)特約維修站023-47546361江津區(qū)幾江卞家廳街世福家電維修部
索尼家用電子產(chǎn)品德陽市特約維修站0838-2270430德陽市沂河街192號
索尼家用電子產(chǎn)品天津市塘沽區(qū)特約維修站022-25344510天津市濱海新區(qū)塘沽新華路605號
青島索尼特約維修站壽光市分站0532-85012858青島市延吉路58號
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