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tvc "Starring" model SL-5000


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Buna ziua ! Am acest tv care pe carcasa scrie "Chasis No. P51-26"are urmatoarele compo :-M50431-101SP-TA7698AP-TA7680AP-cadre cu trz...simptome: la pornire are imagine micsorata pe V,de aprox 6 cm,care in 5minute ajunge cam la 11cm ,in partea superioara cursa inversa de cadre vizibila cam pe 50% din imagine si tot in partea superioara intoarcere de imagine,partea cu sigla postului receptionat.am inlocuit toate c-urile din etajul de BV,cel de pe bara B+ care era zero microf.si nici o imbunatatire,tensiunile secundare ale sursei= 116v /22,8v/ 5,2v. U.rec. ptr. cadre=49,2v. U.out de pe IC.202 =12,2v ,si totusi simptomul persista ...va rog frumos pe cei experimentati cu acest tip de sasiu, cateva idei ajutatoare...multumesc anticipat !

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