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Telefunken T32TX189DLBP


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Va salut.

  Tv-ul mai sus mentionat are urmatorul simptom.Il bag in priza, se aprinde ledul rosu de standby.Apas pe orice buton de pe telecomanda sa il pornesc si palpaie de cateva ori ledul rosu si iar revine la aprins continuu de standby.Pe lcd nu se vede nicio modificare(lumina,imagine,activare pixeli).

La sursa am schimbat toti condensatorii(inclusiv cel de 68u/400v),dioda dubla skhottcy,tranzistorul mos-fet de putere de pe partea de intrare a conversiei de tensiune,am tensiune de 28v la leduri,am verificat toate sigurantele si rezistentele invclusiv smd,diodele,trafurile,scurtcircuit nu am gasit,iesirea de tensiune 12v pe doi pini care duc la placa de AV este prezenta.

Am gasit schema la 17IPS11 dar eu am revizia 4 si schema e revizia 2 si la placa mea lipseste tensiunea de 5V de standby.La verificare pin de 5v , se gaseste pe placa doar un traseu scurt si atat.Fara corespondent la stabilizarea de 5v din schema cu tranzistor si zener.

  Ceva ajutor?Multumesc.

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