隨(sui)著科技發展,各種智能(neng)電(dian)器出(chu)現在(zai)生(sheng)活中(zhong),電(dian)視機(ji)(ji)的(de)功(gong)能(neng)也豐富起來,不僅(jin)能(neng)夠看(kan)新聞、娛(yu)樂(le)、體育,還(huan)能(neng)利用電(dian)視機(ji)(ji)玩游戲,不過(guo)在(zai)使用過(guo)程中(zhong),會遇到(dao)電(dian)視機(ji)(ji)有電(dian)卻黑(hei)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(bei)光板問題(ti)。電視(shi)機開(kai)啟(qi)之(zhi)后(hou),若電源線連接正(zheng)常,指示燈也正(zheng)常,但出(chu)現了(le)黑(hei)屏現象,說明電視(shi)機的背(bei)光板出(chu)了(le)故障(zhang),需要(yao)打開(kai)電視(shi)機的外(wai)殼(ke),檢查背(bei)光板,需要(yao)及時更換損壞的背(bei)光板。
2、電(dian)(dian)(dian)源問題。遇到電(dian)(dian)(dian)視(shi)機(ji)(ji)黑屏現象,首先檢(jian)查電(dian)(dian)(dian)視(shi)機(ji)(ji)的(de)面板(ban)按(an)鍵是(shi)(shi)否正(zheng)常使用,電(dian)(dian)(dian)視(shi)機(ji)(ji)的(de)指(zhi)示燈是(shi)(shi)否正(zheng)常亮起,再檢(jian)查電(dian)(dian)(dian)視(shi)機(ji)(ji)電(dian)(dian)(dian)源電(dian)(dian)(dian)壓是(shi)(shi)否太低(di)(di),如果是(shi)(shi)電(dian)(dian)(dian)源電(dian)(dian)(dian)壓太低(di)(di)導致電(dian)(dian)(dian)視(shi)機(ji)(ji)黑屏,等到電(dian)(dian)(dian)壓穩定就能(neng)正(zheng)常了,若(ruo)經常出現電(dian)(dian)(dian)壓低(di)(di)的(de)情況,建(jian)議家庭安裝穩壓器。
3、元件故障。電視(shi)機(ji)出現黑屏并且伴(ban)有一些雜音,說明電視(shi)機(ji)的(de)三(san)極管存在空(kong)焊現象,需要將電視(shi)機(ji)的(de)外殼拆開(kai),對相關元件重新(xin)補焊,不建議用戶(hu)自行操作(zuo),交給專業維修師傅比較妥當。
4、若開機(ji)沒反應、指示燈也不(bu)亮,則需要(yao)用電(dian)(dian)(dian)表進行檢(jian)測,看看電(dian)(dian)(dian)壓是否過(guo)低,同時還(huan)要(yao)檢(jian)查電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)路的(de)輸入問題,觀察是不(bu)是將12V的(de)電(dian)(dian)(dian)壓轉換成了5V的(de)電(dian)(dian)(dian)壓,從(cong)而(er)導致黑(hei)屏。若是的(de)話,只(zhi)要(yao)調整電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)路的(de)輸入級,讓電(dian)(dian)(dian)壓恢復正(zheng)常即可。
上(shang)文介(jie)紹了電視(shi)機有電卻黑屏打(da)不開的(de)原因和解決方法。當然,電視(shi)機是精致的(de)電器,平常使用我(wo)們需要小(xiao)心翼(yi)翼(yi),注意正確(que)的(de)方法。