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Guest Constantin1970

TV PANASONIC model TX-21AT2P

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Guest Constantin1970

Am o problema cu aces tv, am gasit tranzistorul 1803DHI ars, nu stiu ce echivalent sa-i pun. I-am pus un BU808DFI si mi l-a ars pe loc. Nu stiti ce se mai poate face ?

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Fara suparare ,dar 1803DHI este tranzistor bipolar simplu,iar BU808DFI tranzistor Darlington.....alta gasca in alta traista........In locul lui 1803DHI se poate monta D1555,S2055,BU508DFI. Ca sa nu mai spun ca ati inlocuit tranzistorul,fara a stabilii cauza scurtcircuitarii lui......

Edited by Andrei Tabacaru
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Cum as putea sa verific bobina deflexe si trafo linii fara sa mai ard vreun bu?

o scoti cu grija iar daca e defecta se vede cu ochil liber

trafo ,daca ai tester sau cu un montaj adecvat,vezi intai deflexia

Edited by palcu ion
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 Nu intodeauna verificarea unui trafo linii cu testerul ne poate garanta ca acesta e bun cu siguranta.Acum depinde si de tester.Eu il am pe-ala cu diode si am mai luat plasa de cateva ori..Chiar astazi am avut un caz ,pana n-am schimbat trafo nu s-a rezolvat.Dar pana sa inlocuiesc trfo am mai busit si finalul linii si cadrele.Cred ca cele mai bune testere erau cele HR care se pare ca au disparut.

Edited by ionel1959
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