ionbel1 Posted March 2, 2015 Share Posted March 2, 2015 Am acest tv cu clasicul defect de sursa.Am schimbat siguranta,puntea redresoare,R3514,3515,diodele 6501,6502,6514,tranzistorii 7502,7504,7501,am masurat cu un pin scos fiecare rezistenta,toate sunt ca in schema,dar sursa nu pleaca,pe condul 2515 nu am decit 14V. Nu a mai ramas decit traful chopper.Deorece nu am un traf sa probez va intreb a-ti intilnit traf defect la acest sasiu ori imi scapa mie ceva.Astept ceva sugestii de la dv.Multumesc Link to comment
SASSU Posted March 2, 2015 Share Posted March 2, 2015 Puneti un ups001 de proba si eliminati si traful ,dar acest traf nu pica Link to comment
Florinel TV Posted March 2, 2015 Share Posted March 2, 2015 (edited) poate este ceva in scurt pe tensiunea de 96v pe iesire but11 dus Edited March 2, 2015 by Harhas Florin Link to comment
BUGHIU Posted March 2, 2015 Share Posted March 2, 2015 ....condi ceramic (albastru) sau trafo linii!!! Link to comment
dan cod Posted March 2, 2015 Share Posted March 2, 2015 Nu cred ca la sasiul asta merge UPS001. Link to comment
leoncris Posted March 2, 2015 Share Posted March 2, 2015 Ce tensiune ai pe C_ul mare , dar dupa R3513 ? Link to comment
Depanatoru Posted March 2, 2015 Share Posted March 2, 2015 (edited) Mai este un zener 6510 ... in rest trebuie verificata orice alta piesa inclusiv condensatorii nepolarizati, chopperul e exclus sa fie defect numai intr-un caz cu totul exceptional . Evident ca trebuie intrerupt traseul care alimenteaza baleiajul ca sa nu fie vreun defect pe acolo chiar daca nu are scurt Edited March 2, 2015 by Depanatoru Link to comment
ionbel1 Posted March 2, 2015 Author Share Posted March 2, 2015 Intradevar,defectul a fost de la dioda6510,eu am lucrat dupa schema,unde este trecuta un zener de 15 v,in realitate in tv.era de 12v.Multumesc tuturor pentru interes. Link to comment
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