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ELFORUM - Forumul electronistilor
mgigeone

Plasma Philips sasiu LC4.41E AA

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va salut ! scz ca nu am raspuns mai devreme , am fost plecat in concediu . in legatura cu defectul , sursa are troznite 2 feturi notate pe skema 7050 si 7052 , problema e ca ambele sunt controlate de ceva notat pe skema "sequence discharge" alcatuit numai din componente smd , pe care l-am cautat prin tot caietul servis si nu l-am gasit nici cu politia . am schimbat cele 2 feturi , sursa porneste , ajunge la 83v tensiunea Vs si decupleaza releul , Vs cazand la 0V chiar daca am fisha de la modulele Ysus si Zsus scoasa . daca s-au troznit cele 2 feturi , sigur s-a mai dus vreun smd pe langa ele , si va dati seama ca fara skema acelui "sequence discharge" nu mai pot avansa . am mai gasit in partea de oscilatie catziva condi electrolitici smd uscati , care cred ca a fost cauza pt care s-au troznit feturile .

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