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ELFORUM - Forumul electronistilor
Guest Tonny_ake

TDA 16846 HELP

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Guest Tonny_ake

Salutare .. am o problema cu sursa de la un SEG ,sasiu 11 ak 41...cu tda 16846....poate cineva ,va rog frumos sa-mi spuna si mie defecte tipice...cit de cit am lucrat cu ele dar asta face chiar ciudat.... sta u 1 la vreo 60 v si toate tensiunie sunt mai mici decit normal..si nu e nici in st-by..nu se aprinde led'ul si nu am nici 5 v pe stabilizator... am schimbat si integratul, si mos'ul verificat si r de mega-ohmi si totul pare in regula..dati-mi va rog o idee..poate stie cineva alte defecte tipice...va multumesc....Tonny Timisoara..

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Guest RUZIK41

Cu VR127 nu se reguleaza cit de putin?E posibil sa fie ceva defectat in partea secundara - optocuplorul, TL431, R125, D115...Ar fi bine de scimbat C101, C114 in partea primara.

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in primar ai trei diode,schimba-le.Masoara tens. la pini ci tda 16846 ,ai garantia ca e bun ? scoate chopper si refa lipituriile decupleaza liniile si vezi ,nu ai un consumator !!! separator galvanic (opto),cat de bun e ?iti tre tcdt1101 schimba si memoria baf !

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