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POLAKU2002

tv blaupunkt b40k233tc

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Buna seara,tv are ledurile aprinse dar nu afiseaza nimic....pe tconul display ajung 12v....am salvat memoria din 25q32 si am rescris cipul cu ea dar degeaba...este echipat cu placa TP.MSD309.BP710 si display lc4m503.001.....

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53 minutes ago, POLAKU2002 said:

Am incercat mai multe binuri si la fel face...

 

1 hour ago, POLAKU2002 said:

.pe tconul display ajung 12v....

Esti batran in meseria asta, ti-se pare ca 12v e suficient pe t-con ca ecranul sa functioneze ??

 

 

Edited by Costica Tv
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acum am rezolvat un chinez care avea acelas defect ca al tau, 

lipsa imagine si nu functiona nici telecomanda...

defect a fost pe placa de baza. lipsa o tensiune de 3,3v . rezolvare...schimbat un stab de pe placa de baza.

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Acum 42 minute, POLAKU2002 a spus:

iar unul din bara de 5v imi da pe iesire 1,5v...

 

E bine asa, tai unu din fata si ramane 5V :d

 

Lasam glummele la o parte, nu este scurt pe iesire stab.? daca nu schimba stab-ul, sau izoleaza iesirea si vezi ce tensiune scoate in gol

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ca sa iti faci o idee,da sant mai multe tensiuni,cu - cu +,chiar daca displayul se alimenteaza cu 5-12v ,aceste tensiuni sant si mai mari si mai mici,ai puncte de masura,la unele cu notatii,gen vgh,vgl,.........aceste puncte difera in functie de modelul display,

 

 

Edited by iuliantv
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