kiki2000 Posted March 23, 2010 Share Posted March 23, 2010 led stby se aprinde dupa 20 sec iar tv nu porneste la actionare buton.rog un pic de ajutor.Multumesc. Link to comment Share on other sites More sharing options...
paun nelu Posted March 23, 2010 Share Posted March 23, 2010 schimba condensatorii din sursa! Link to comment Share on other sites More sharing options...
radu ionel Posted March 23, 2010 Share Posted March 23, 2010 Va rugam un pic de detalii,cu ce este dotat:sursa,procesor,jungle:citeva masuratori in st-by U1 cit este?daca dati putine info ,tot putine veti primi. Link to comment Share on other sites More sharing options...
GYON Posted March 23, 2010 Share Posted March 23, 2010 Acest model are sursa cu CI=DPM001TIA care se defecteaza frecvent.Masoara tensiunile furnizate de sursa.Daca sunt mari mai mult ca sigur DPM-ul este defect .Daca tensiunile sunt OK. incearca sa rescrii memoria,posibil date alterate!Da niste detalii cu masuratorile efectuate! Link to comment Share on other sites More sharing options...
kiki2000 Posted March 24, 2010 Author Share Posted March 24, 2010 in st-by U1 are 133v iar tensiunile furnizate de sursa sunt normale. Link to comment Share on other sites More sharing options...
cristronic Posted March 24, 2010 Share Posted March 24, 2010 Schimba C819 -10uF/100V filtrajul pentru tensiune alimentare driver. Link to comment Share on other sites More sharing options...
GYON Posted March 24, 2010 Share Posted March 24, 2010 La comanda off aveti 5V respectiv 8V pe pinii 7 si 6 ai STV8131? In baza lui Q401(tranzistor driver) aveti impulsuri de comanda? Dar in colector?Incercati rescrierea memoriei evectual schimbarea ei cu un dump adecvat.Inlocuiti si C-ul care pe care v-i la indicat domnul CRISTONIC etc.Sunt diverse cauze care pot provoca defectul acesta.Mai verificati si traseul pin 14 al DPM -Q802-D816-pin 54 (OCP) al procesorului! Link to comment Share on other sites More sharing options...
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