TELEVIZOR

TELEVIZOR (az tele… va lotini vizo — mebinam), priyomniki televizioni, olatest baroi taqviya va ba tasviru ovoz tabdil dodani radiomavjhoi barnamai namoishhoi stansiyai televizioni. Televizionhoi ranga va muqarrari, stasionari va sayyor meshavand. Televizorhoe, ki sanoati SSSR istehsol mekunad, dar diapazonhoi metri (48,5—400 MGs va 174—230 MGs; 12 to kanal) va desimetri (470—633 MGs; dahho kanal)-i radiamavjho kor mekunand. Khususiyati asosii televizor dar on ast, ki jarayoni taqviyat va tabdili radiomavjhoi tasviru ovoz dar yak vaqt ba amal meoyand. Antennai Televizor radiomavjhoi markazi televizionro qabul karda (nigared rasmi 2), onhoro tavassuti kabel ba televizor intiqol mekunad. Signalho pas az taqviyat ba signalhoi tasvir va ovoz judo gardida ba kinoskop va karnai elektrodinamikii radio dokhil meshavand. Generatorhoi gustarishi satr va kadrho dar ekrani kineskop rastri televizioniro ba vujud meorand. Sistemai televizioni ranga bar khilofi televizori muqarrari az se 1sanal iborat ast. Dar on unsurhoi tarkibi signal: surkh (S), sabz (S₃) va kabud (K) dar apparati makhsus omekhta shuda sipas ba modulyatori apparati irsol dokhil meshavand. Dar priyomnik boshad, signal boz ba se kanali basomadii S, S₃, K judo shuda ba kineskopi ranga vorid megardad.

Televizorhoi hozirazamoni vatani vobasta ba sifat, andozai ekran va khususiyatghoi istifoda ba 4 stenf judo meshavand: sinfhoi 1,2 va 3— Televizorhoi stasionari va sinfi 4—televizorhoi khurd va sayyor. Holo baroi istehsoli Televizor asosan unsurhoi nimnoqili va skhemahoi integraliro istifoda mebarand.

M. Mamadjonov.