Guest virgilelf Posted June 10, 2012 Share Posted June 10, 2012 Cumpar o placa sasiu CA10 pt un TVC Sharp 70ES-03S, care are in componenta trafo 40330-42 (105319.80) si BUH515. Am gasit crapat BUH515, am pus un BUH1015H si a crapat si asta la a 2-a pornire. Suspectez trafo. Mai are o problema la ambele baleiaje: dim mica pe H si mare pe V. Cu atatea probleme, prefer sa schimb toata placa. Primesc orice sugestie.Virgil Link to comment
Guest Posted June 10, 2012 Share Posted June 10, 2012 sant cel mult 4 electrolitici uscati,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Link to comment
Guest virgilelf Posted June 11, 2012 Share Posted June 11, 2012 Pt BV este clar ca sunt ceva electrolitici uscati (inca nu mi-am batut capul, vreau mai intai sa rezolv BH). Dar pt BH (faptul ca s-au ars 2 tranzistori BUH) tot electrolitici uscati pot fi? Trafo arata bine pe din-afara si probabil este ok. In acest caz am nevoie de o schema ... Link to comment
naetv Posted June 11, 2012 Share Posted June 11, 2012 Tv sharp model 70ES-03S http://elektrotanya.com/sharp_70es03s.pdf/download.html viewtopic.php?f=16&t=66361&start=0 dimensiune mica linii si mare cadre - verificati tensiunea de baza , posibil prea mica Link to comment
Guest Posted June 11, 2012 Share Posted June 11, 2012 acum vorbesc din amintiridaca este cu driver linii fara traf are si alimentare negativauscarea cond pe tens negativa face ca blocarea final linii sa fie incorecta,deci arderea lui Link to comment
Guest virgilelf Posted June 11, 2012 Share Posted June 11, 2012 Merci pt toate raspunsurile.Pt naetv: tensiunea de baza este buna (150VDC). Cred in cond uscati in BV!Pt miticamy: da, BH este fara traf driver. Am sa ma uit pe schema oferita de naetv si am sa va tin la curent. Link to comment
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