Analog TV yog ib yam ntawm yav dhau los, thiab thev naus laus zis digital tuav nws txoj haujlwm. Tab sis qhov teeb meem nrog teeb liab tsis zoo lossis cuam tshuam thaum lub sijhawm tshaj tawm tsis daws nws.
Cov txiaj ntsig ntawm digital TV
Digital TV yog qhov kev hloov kho niaj hnub rau cov qauv analog TV. Nrog rau cov thev naus laus zis no, cov duab ua kom zoo dua qub rau tib tus nqi. Lub ntsiab lus ntawm cov thev naus laus zis yog xov tooj TV qhia tau cov xwm txheej ntawm cov xov tooj hluav taws xob tsis zoo. Cov thev naus laus zis muab txoj hauv kev tshiab rau kev xa thiab tau txais cov ntaub ntawv.
Cov TV muaj nws qhov zoo. Piv txwv li, kev mus ncig. Tsis muaj ntau rub tawm cov xov hlau thiab cable, txhua yam koj xav tau yog TV, kav hlau txais xov, digital receiver thiab lub qhov hluav taws xob. Nov yog lub kaw lus ntiag tug uas koj tuaj yeem nqa nrog koj, piv txwv li, mus rau dacha thiab saib TV programmes uas muaj cov cim qhia zoo tib yam li hauv nroog. Ntxiv rau, digital TV muaj ntau tus tshaj tawm hauv xov, thiab koj kuj tuaj yeem nkag mus hauv Is Taws Nem, TV qhia, thiab lwm yam.
Muaj peev xwm ua rau cuam tshuam
Lub teeb liab digital feem ntau ntseeg tau zoo thiab zoo dua li ib qho cim hluav taws xob, tab sis txawm tias nws tsis muaj lub zog los ntawm ntau yam kev cuam tshuam. Nyob rau hauv txhua rooj plaub, yog tias qhov zoo tshaj ntawm cov tshaj tawm paug, koj yuav tsum paub qhov laj thawj yog vim li cas qhov no tshwm sim. Piv txwv, yog tias lub TV qhia tsis zoo thiab muaj kev cuam tshuam, koj yuav tsum kuaj lub kav hlau txais xov. Tej zaum nws tau ua tsis zoo los yog cia li ploj lawm. Tsis tas li, tus kav hlau txais xov tuaj yeem tawg vim los ntawm kev daus loj lossis ib qho dej khov. Ib qho ntxiv, TV yuav tshwm sim tsis zoo vim lub TV tawg cable, lub txais xov tawg, thiab lwm yam.
Yog tias, thaum muaj kev sib txuas ntawm cov TV digital, cov tswv qhia tau muab cov cable rau chav tsev, thiab txuas ntxiv cov xov hlau tau ua tiav ntawm nws tus kheej (tshwj xeeb yog tias muaj ntau tshaj li ib lub TV hauv chav tsev), tom qab ntawd yuav muaj qhov tsis zoo nyob rau hauv tee. Kev cuam tshuam kuj tseem tuaj yeem tshwm sim yog tias tseem muaj lub koos pij tawj nyob ze rau TV, thiab lawv txuas nrog los ntawm HDMI cable. Raws li txoj cai, TV cuam tshuam pib thaum lub khoos phis tawm, thiab sai li sai tau thaum lub khoos phis tawm hauv computer, cov duab yuav ua zoo dua. Hauv qhov no, kev cuam tshuam yuav tshwm sim vim lub computer ua suab nrov (los yog theej daim npav video nrog HDMI chaw nres nkoj).
Yog tias koj nyob ntawm cov tsev saum toj thiab lub teeb liab tsis muaj zog, nws muaj peev xwm hais tias cov txiv ntoo ntawm lub dividers yog oxidized lossis hlawv, cov khoom siv tsis tau teeb tsa, lossis cov khoom siv kho qhov muag tsis tawm. Nws muaj ntau lub laj thawj rau qhov tshwm sim ntawm kev cuam tshuam, thiab qhov yooj yim tshaj yog hu tus tswv kom paub qhov tseeb vim li cas thiab tshem tawm nws.
