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TV Daewoo 21T5T - click sursa


Guest morosanu22
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Guest morosanu22

Buna seara . Am un tv  Daewoo 21T5T la care se aude un clickait in continuu cand il bag in priza si nu se aprinde ledul de stby.  Sa fie probleme la sursa?

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daca se aude acel sunet sursa functioneaza....verifica condensatorul pus pe emitor colector tranzistorul final sa nu fie in scurt sau intrerupt....verifica tranzistorul final sa nu fie defect....defectarea cond respectiv duce la defectarea tranzistorului final....posibil traful care genereaza inalta sa fie de asemenea dus....suntetul respectiv apare cand pe bara de 115...120 volti apare un scurt pe care sursa il detecteaza si intra in protectie..

spor si bafta

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Guest morosanu22

Am dat jos q401 si c410, q401 este in scurt si la condesator nu imi arata nimic , deci intrerupt nu ? 

Am incercat sa pornesc tv fara q401 si c410 ,se aprinde ledul de stby pt scurt  timp dupa care se stinge , si nu mai am acel tacait in sursa.

Cum as putea verifica sursa sa vad daca e ok? sa leg un bec de 220v 100w la B+  si la GND ? Multumesc

Edited by morosanu22
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