Imichilo yokukhanya kwe-LED ingahlala iminyaka emininzi ngaphandle kokutshisa. Kungabiza kancinci ukubuyisela izibane zasemva kunokuthenga i-TV entsha ukuba i-TV yakho indala. Imichilo ye-LED inokubangela ukufiphala okanye imigca yemibala kwiscreen seTV. Imichilo ye-LED inokutshisa isikrini seTV. Ungayisombulula le ngxaki ngokutshintsha iintambo ze-LED ezincanyathiselwe kwiTV yakho.
Ukutshintsha i-backlight kwii-TV ezininzi ze-LED kubiza phakathi kwe-$ 75 kunye ne-$ 200, kuxhomekeke kwimodeli. Ekubeni ilula, abantu abaninzi bathatha indawo ye-backlight. Ixabiso le-LED linokuba phezulu kunezinye iindawo zikamabonwakude. Umzekelo, ukubuyisela isibane se-backlight kwi-24-intshi ye-LED TV inokubiza i-$ 188 okanye i-$ 208. Iindleko ze-LED backlight replacement parts azifakwanga kolu qikelelo.
Ukutshintsha i-backlight ye-TV inokuqala ukusuka kwi-100 ukuya kwi-300 yeedola, kuxhomekeke kuhlobo lwezibane ze-LED onazo. Oku kudla ngokuba ngumsebenzi onzima ofuna igcisa lihlengahlengise iibhodi zesekethe zasemva. Le nkqubo ilula kwaye nabani na unokuyenza ngolwazi olusisiseko lwe-DIY. Ungagcina kakhulu ukuba uqesha ingcali ukuba yenze umsebenzi.
Ndingasibuyisela njani isibane se-LED kwi-Samsung TV yam?
Kuya kufuneka ususe ipaneli yangasemva kunye nezithethi ukuze utshintshe isibane se-LED kwi-Samsung TV yakho. I-LED nganye idibaniswe kuthotho. Awunakuthatha indawo ye-LED enye. Endaweni yoko, kuya kufuneka ujonge ii-voltages ze-LED ngaphambi kokuphinda uzihlanganise. Kuya kufuneka usebenzise intambo encinci yeempawu zevidiyo kunye nenye engqindilili ngakumbi kumandla e-LED. Kuya kufuneka ukhuphe i-backlight ye-LCD, kwaye emva koko uyixhume.
Zama ukucima amandla ukuba isibane sangasemva kwi-Samsung TV yakho ayikhanyi kakuhle. Iyunithi iya kuqalisa kwakhona, idle onke amandla ayo. I-TV iya kuba lula ukuyilungisa xa sele ifumene umbala wayo wokuqala. Ingxaki ayinakuhamba, ngoko kuya kufuneka utshintshe isibane esingasemva. Ungalindela ukuchitha phakathi kwe-$100 kunye ne-$200 kolu tshintsho lwesibane.
Cima isibane sangasemva kwisibane sakho se-LED. Cima isibane sesibane se-LED ukuthintela ukuba singaphazamisani nokusebenza kwe-TV. Layita iTV ukuba isibane se-LED siyakhanya. Qinisekisa ukuba ibhetri ikwindawo enye. Yilayite kwaye ulinde ukuba igqibe ukuyivula. Ngoku ungalayita okanye ucime isibane sangasemva ngokusilayita kwakhona.
Ngaba sikhona isibane sikamabonakude seSamsung?
Umabonakude we-LED luhlobo lukamabonakude olusebenzisa ubuchwepheshe be-LED. Banobomi obufutshane kakhulu. Izibane zamandla ombane aphezulu zinokubangela ukusilela konikezelo lwamandla. Ingakhokelela ekulungiseni okuxabisa imali eninzi. I-avareji yeendleko ze-Samsung TV backlight iphakathi kwee-$100 kunye ne-125 yeedola. I-TV yakho iya kuxabisa ngaphezulu ukuba ingaphezulu kweminyaka esixhenxe ubudala. Kusenokufuneka uthenge iinxalenye ezongezelelweyo ukuba ufuna isibane esitsha.
Iseti yokutshintsha inokufuneka ukuba isibane sakho sasemva asiphumeleli. Ungagcina imali ngokuthenga iseti yokutshintsha. Kwiimeko ezininzi uya kukwazi ukutshintsha umqolo wesibane. Ixabiso liya kwahluka ngokuxhomekeke imodeli Samsung TV. Ezinye iimodeli zeTV ziquka kuphela isibane se-LED ngasemva. Abanye banokuquka ezininzi. Unokuthenga iphakheji yokukhanya kwe-LED ngaphezulu kwe-Samsung TV enye.
Ukulayita ngasemva komabonakude we-Samsung kunexabiso elahlukileyo ngokuxhomekeke kuhlobo lwe-LED esetyenzisiweyo. Inxalenye ebiza kakhulu yimichilo ye-LED. I-strip ye-LED yeyona nto ibiza kakhulu kwi-Samsung TV. Nangona kunjalo, i-TV ye-Samsung ene-backlight ephosakeleyo inokulungiswa. Ukuba une-TV endala, ungabuyisela isibane sangasemva ngesitsha.
Lithini ixabiso lesibane sikamabonakude esingasemva?
I-avareji yeendleko zokulungisa izibane zasemva zikamabonakude ziphakathi kwe-$100 ne-125 yeedola. Oku kuquka iindleko zabasebenzi nezohambo. Nangona iinxalenye zingabizi kakhulu kwiCCFL kunye nezibane ze-LED, ezokugqibela zibiza kakhulu. Uhlobo kunye nombala we-LED uya kuchaphazela amandla ayo angaphambili. Ii-LED ezibomvu zinokuba ne-voltages ye-1,7-2,0 volts, ngelixa ii-LED eziluhlaza ziyakwazi ukuvelisa i-voltages ye-3-3 volts.
Iindleko zokulungisa i-backlight ye-TV iyahluka ngokuxhomekeke kuhlobo lwayo kunye nobukhulu. IiTV ezindala zinokubiza ngaphezulu. Ubomi obulindelekileyo beebhalbhu ze-LED bulinganiselwe kwaye zinokusilela ukuba zisetyenziswe ngamandla ombane aphezulu. Kufuneka i-inverter ukulungisa i-LCD TV. Inokusebenza phakathi kwe-5 kunye ne-48 VDC.
Iibhalbhu ze-LED zinobomi obufutshane kunezinye iintlobo zokukhanyisa kwaye zinokubangela umonakalo omkhulu kumbane wakho. Iindleko ze-LED backlit TV zivela kwi-100 yeedola ukuya kwi-125 yeedola. Ukongeza ukulungiswa kwe-backlight, kunokufuneka ukuba utshintshe ipaneli ye-LED. Ezinye ii-TV ziya kufuna i-port ye-HDMI eyongezelelweyo kunye nesikrini esitsha. Iindleko zokutshintsha iindawo ezininzi kwiTV endala kunesibane esingasemva ziya kuba phezulu.
Yintoni onokuyenza ukuze ufumanise ukuba isibane sikamabonakude esisemva sicinyiwe?
Isiguquli sesibane se-TV yakho sinokubangela ukuba singavelisi kukhanya. Ungasebenzisa isibane esiqaqambileyo kwaye uyibambe ubuncinci isentimitha ukusuka kwisikrini ukubona ukuba yintoni ingxaki. Ungaqhubeka nokujonga umfanekiso ukuba awubonakali. Zama ukutshintsha igalelo leHDMI. Ungayibuyisela ibhodi yamandla ukuba isikrini asikhanyisi.
I-LED etshileyo yeyona ngxaki ixhaphakileyo nge-backlight ye-TV. Ukubonisa ukudinwa, i-LED kufuneka ibonakale imfiliba kakhulu. Buyisela umtya ukuba i-LED itshile. Isibane esingasemva singaqhubeka sisebenza, kodwa umfanekiso ufiphalisiwe. Izibane ezifileyo zingabangelwa yingxaki yebhodi yenkqubo yeTV yakho engundoqo. Kusenokuba yimfuneko ukutshintsha ibhodi yeprosesa kunye nephaneli, kuxhomekeke kwimodeli onayo. Kusenokufuneka ukuba izakhono zakho zivavanywe liziko lenkonzo eligunyazisiweyo ukuba awuqinisekanga.
Ungajonga ukukhanya kweTV yakho ngetotshi. Isibane sangasemva seTV sinokubonakala simnyama kakhulu xa kumnyama. Okokuqala, cima izibane. Isibane esingasemva akufuneki sikhuphe isibane sokukhanya. Kufuneka itshintshwe. I-backlight kulula ukuyibuyisela.
Ngaba isibane se-LED singasilela njani?
I-backlight ye-LED iya kusilela ukuba ii-LED zenza umonakalo kwiipikseli. Nangona ii-LED ezichaphazelekayo ziya kuqhubeka ziqhuba umbane, aziyi kuvelisa ukukhanya kwaye ekugqibeleni ziya kucima. Isibane esingasemva sinokubangelwa ziingxaki zomqhubi, umbane, okanye i-LED. Ngamanye amaxesha umbane awusebenzi kakuhle kwaye ii-LED azikhanyi. Ngamanye amaxesha, unikezelo lwamandla lusenokungonelanga okanye ii-LED zinokonakala.
Ukungaphumeleli kwisekethe yokukhanya kwe-LED kunokubangela ukuba imichilo ye-LED itshintshe. I-electronics kwi-controller circuit inokuthi yonakaliswe kukunyuka kwamandla. Xa iphaneli yeLCD inamandla, inokubangela ukuba ii-LED zingafumani i-voltage eyaneleyo. Umtya we-LED ongalunganga unokubangela isekethe evulekileyo kunye nomboniso omfiliba. Ezi ngxaki zidla ngokuba lula ukuzilungisa.
Umonakalo wamanzi unokubangela ukuba isiphaluka se-backlight singaphumeleli ngaphezu kweendlela zombane kwibhodi yesiphaluka. Indlela yombane kwikhonkco inokuphulwa ngamanzi, okunokubangela isiphaluka esifutshane. Ukudibanisa phakathi kwee-LED zepaneli ye-LCD kunye nee-LED zayo ziya kuvinjelwa yi-LED ephosakeleyo. Umonakalo kwiindlela zombane kwibhodi yesiphaluka sesinye isizathu sokuba izibane ze-LED zingaphumeleli. Ii-LED aziyi kukhanya ukuba le migca ye-conductive yaphukile.
Cofa apha ukuze ubone iinkcukacha ezininzi
2.) Umabonakude weSamsung – Wikipedia
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