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attilaa0

TV Heru CTV31910 defect ciudat,restarteaza

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Buna ziua!Acest TV cu sasiu P1470A03 (101212) ver1.porneste dar dupa cateva secunde se inchide apoi iar porneste si tot asa.

Am verificat conzii ,am montat bec si sursa este stabila ,asa nu decupleaza.Dupa cautari pe forumuri am citit ca circuitul de 5V ar fi problema ,am

scos afara tranzistorul V502 si am pus un stab de 5V dar defectul a ramas.

Poate stie cineva acest defect.Astept pareri.Va multumesc.

Schema nu am.

Edited by attilaa0
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Acum 3 ore, Florinel TV a spus:

 

Acum ai, verifica condesatori de pe tensiunea de 8V , schimba si tranzistorul

Lustar 21LSOEA7NF chassis P1470A03.pdf 173 kB · 3 downloads

Pune stabilizator si pe tensiunea de 3,3V

Multumesc,problema e ca schema nu prea seamana cu al meu.

 

@dancod ,becul am montat dar BU era decuplat ,asa nu se mai restarta tv-ul.Si becul ardea normal,fara ca sursa sa se opreasca.

Edited by attilaa0
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Am pus becul,nu decupleaza dar problema e ca dupa incalzire face mai rar.Am schimbat si dioda VD563  Her207 ,parca e mai bine ,dar dupa montare iar a

facut figura odata.Am intrat in meniu serv MENU6483 dar nu gasesc cum sa trec la reglaj dimensiune BV.El afiseaza doar o parte din meniu,nu pot trece

la urmatoarea pagina(telecomanda originala).

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