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gabilungu66

Dump pentru BUNTZ CTV 2121

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Va salut Domnilor,

sasiu china BZ-21P02B, multifunctional TDA11105PS/V3/3,mem 24c08,sursa cu tranzistori.Tv functioneaza dar intra in st-by cand se acceseaza meniul tv-ului sau aleator in timpul functionarii.

Va mulumesc anticipat.

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N-are treaba cu dump-ul cum nu are nimic in comun surubelnita cu prefectura.Acolo "altele e problemele".Mai sapati!!!

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N-are treaba cu dump-ul cum nu are nimic in comun surubelnita cu prefectura.Acolo "altele e problemele".Mai sapati!!!

 

mai colegu Andrei de ce nu iai spus omului ce are ca doar stii defectu  :d

il lasi sa se chinuie singur

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Tv-ul a venit cu lipsa sunet,am gasit c564 umflat ,l-am schimbat ,a aparut sunetul ,dar face chestia cu opritul.

Multumesc pentru promptitudine.

Edited by gabilungu66

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N-are treaba cu dump-ul cum nu are nimic in comun surubelnita cu prefectura.Acolo "altele e problemele".Mai sapati!!!

  Cred ca problema ta are 3 picioare...e destul de frecvent intalnita!

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Masurasi tensiunile din sursa ?

Inainte de a inlocui c-urile din secundar am masurat tensiunile.

18,2V

12,4V

28,2V

-14,7V

14,9V

113,5V

multifunctional

pin2 - 4,98V

pin3 - 7,5V

final video -178V

dupa inlocuirea c-urilor tensiunile au ramas la fel.ESR-ul lor era in limita.(0,2-0,4 ohmi)

Am gasit pe forum un sasiu cu defect identic,rezolvarea fiind inlocuirea dump-ului

Nu am gasit schema cu 6 tensiuni secundare, numai cu 4 .Sursa cu tranzistoare.

Daca aveti cumva schema,va rog.

Multumesc.

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N-are treaba cu dump-ul cum nu are nimic in comun surubelnita cu prefectura.Acolo "altele e problemele".Mai sapati!!!

Asa este,am incercat mai multe dump-uri si face la fel. tv-ul functioneaza normal timp de aprox. 5 min. dupa care, daca ii cer menu din telec,cand ajung in submeniul de cautare intra in std.by.Pana la urma unde e prefectura,ca surubelnita stiu.

Multumesc,pentru scheme si dump-uri.

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Ai pun dump-ul de la mine intr-o memorie noua?!

De 2 ori am avut defectul asta si asa s-a rezolvat ...

Edited by tehtronics

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