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ELFORUM - Forumul electronistilor

daewoo 21a5t

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  • 2 years later...

Au urmatoarea problema la acest model:Televizorul nu a fost folosit de multa vreme si acum cand l-am pornit porneste defocalizat si dupa o lunga perioada de timp, 5-6 ore revine treptat spre normal. Daca il repornesc din nou in ziua urmatoare, porneste din nou defocalizat cu tensounile marite. Am masurat tensiunea de 200V din etajul final video si este crescuta cu vreo 16V peste 200V. Am masurat celelate tensiuni de iesire din trafo si toate sunt marite. Tensinea de alimentare B+ este 123V si corespunde cu schema. Am scos si masurat condensatorul de recuperare C410 sa vad daca nu si-a modificat capacitatea, l-am masurat si are capacitatea 7.6nF, valoarea marcata pe el.Aveti vreo sugestie la un astfel de defect?

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  • 2 weeks later...

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