bandika Posted February 21, 2008 Share Posted February 21, 2008 Buna ziua ,Problema mea:la pornire din st-by, nu porneste BO corect, adica U1 scade la ~50 v(in loc de 115),restul tensiunilor scad proportional, semnalul din baza are fluctuatii(bruiaj),fara U1 cuplat forma din TDA 8305 este perfect drepunghiulara.(si tensiunile sunt corecte).Am schimbat -verificat tot afara de trafo linii.Si de la o alta sursa face la fel.Alimentatorul pare bun (incercat cu un bec 60W)Are cineva vreun sfat?Va multumesc Link to comment Share on other sites More sharing options...
Nonny149 Posted February 21, 2008 Share Posted February 21, 2008 schimba traful de linii.la tipul ala de nei apare des defectul asta. Link to comment Share on other sites More sharing options...
Guest florianv Posted February 21, 2008 Share Posted February 21, 2008 Schimba trafo.linii,merge FBT 7503. Link to comment Share on other sites More sharing options...
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