隨(sui)著科(ke)技發展，各種(zhong)智能電(dian)(dian)器出現在生活(huo)中(zhong)(zhong)，電(dian)(dian)視(shi)機的(de)功能也(ye)豐富起來，不僅能夠看新聞、娛(yu)樂、體育，還能利用電(dian)(dian)視(shi)機玩(wan)游戲，不過在使用過程(cheng)中(zhong)(zhong)，會(hui)遇到電(dian)(dian)視(shi)機有電(dian)(dian)卻黑屏打不開的(de)情況。

電視機有電卻黑屏打不開是什么原因？

1、背光(guang)板問題。電(dian)視(shi)(shi)機(ji)開(kai)啟之后(hou)，若電(dian)源線連接正常，指示燈也正常，但出現了(le)黑屏現象，說(shuo)明電(dian)視(shi)(shi)機(ji)的背光(guang)板出了(le)故障，需要打開(kai)電(dian)視(shi)(shi)機(ji)的外殼，檢查(cha)背光(guang)板，需要及時(shi)更換損壞的背光(guang)板。

2、電(dian)(dian)(dian)源(yuan)問題。遇(yu)到電(dian)(dian)(dian)視(shi)(shi)機(ji)黑屏(ping)現象，首先(xian)檢(jian)查(cha)電(dian)(dian)(dian)視(shi)(shi)機(ji)的(de)面板按鍵是否正常使用，電(dian)(dian)(dian)視(shi)(shi)機(ji)的(de)指示(shi)燈是否正常亮起，再檢(jian)查(cha)電(dian)(dian)(dian)視(shi)(shi)機(ji)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓是否太低，如果是電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓太低導(dao)致電(dian)(dian)(dian)視(shi)(shi)機(ji)黑屏(ping)，等(deng)到電(dian)(dian)(dian)壓穩定就能正常了(le)，若(ruo)經常出現電(dian)(dian)(dian)壓低的(de)情況(kuang)，建議家庭安裝穩壓器。

3、元件(jian)(jian)故障。電視機(ji)(ji)出現黑屏并且伴有一些雜(za)音，說明電視機(ji)(ji)的三極管(guan)存在(zai)空焊(han)現象，需要(yao)將(jiang)電視機(ji)(ji)的外殼拆(chai)開(kai)，對相關(guan)元件(jian)(jian)重新(xin)補(bu)焊(han)，不建議(yi)用(yong)戶自行(xing)操作，交給專業維修師(shi)傅比較妥當(dang)。

4、若開機沒(mei)反(fan)應、指示燈也不亮，則需要(yao)用電(dian)(dian)(dian)表進行檢測，看(kan)看(kan)電(dian)(dian)(dian)壓是否過低，同時還要(yao)檢查(cha)電(dian)(dian)(dian)源電(dian)(dian)(dian)路的(de)(de)輸入問題，觀(guan)察是不是將12V的(de)(de)電(dian)(dian)(dian)壓轉換成了5V的(de)(de)電(dian)(dian)(dian)壓，從而導致黑屏。若是的(de)(de)話，只(zhi)要(yao)調整電(dian)(dian)(dian)源電(dian)(dian)(dian)路的(de)(de)輸入級，讓電(dian)(dian)(dian)壓恢(hui)復正常(chang)即可。

上文介(jie)紹了(le)電視機(ji)有電卻(que)黑屏打不開的原因(yin)和(he)解決(jue)方(fang)法(fa)。當然，電視機(ji)是精致的電器，平常(chang)使用我們需要小心翼翼，注(zhu)意正(zheng)確(que)的方(fang)法(fa)。