Guest skinhead Posted January 14, 2011 Share Posted January 14, 2011 Salut, am o intrebare. La conectarea si deconectarea amplificatorului apare o tensiune continua de 3-4 V, apoi scade brusc pina la aproximativ 0 V. E normal acesat lucru sau poate sunt defectati condensatorii de intrare, afecteaza cumva sursa de semnal la care il conectez, intreb deoarece il conectez la PC si mie frica sa nu stric cumva placa audio a PC, daca e o problema, care ar fi calea de solutionare? Mersi anticipat Link to comment Share on other sites More sharing options...
ionioni2008 Posted January 14, 2011 Share Posted January 14, 2011 Unde apare acea tensiune de 3..4V? Pe intrare? Pe iesire? Pe bornele conzilor de filtraj? Link to comment Share on other sites More sharing options...
Guest skinhead Posted January 14, 2011 Share Posted January 14, 2011 tensiunea apare la intrarea audio a amplificatorului Link to comment Share on other sites More sharing options...
Guest Posted January 14, 2011 Share Posted January 14, 2011 Foloseste in loc de electroliticul de pe intrare, unul de minim 1uF, maxim 4,7uF nepolarizat. Link to comment Share on other sites More sharing options...
wally_gatter Posted January 14, 2011 Share Posted January 14, 2011 pune un condensator de cativa microfarazi si cativa volti acolo ca sa fii sigur ca nu trece tensiunea continua din amplificator in calculator.. guta oricum va intra ca el e pe semnalul alternativ... sa zicem ca un 10uF/100V ar mai mult decat bine Link to comment Share on other sites More sharing options...
Guest skinhead Posted January 14, 2011 Share Posted January 14, 2011 la intrare este un condensator 2,2microF electrolitic Link to comment Share on other sites More sharing options...
wally_gatter Posted January 14, 2011 Share Posted January 14, 2011 schimba-l cu unul nepolarizat de minim 2,2uF/50V , cu toate ca e electrolitic nu ar trebui sa ai deloc curent in partea de catre calculator Link to comment Share on other sites More sharing options...
Guest skinhead Posted January 14, 2011 Share Posted January 14, 2011 Multumesc tuturor Link to comment Share on other sites More sharing options...
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