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TVC Ciatronic CTV579 ST/VT


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Va salut. Am primit acest TVC , la care sonorul lipseste , bara de volum functioneaza (+ / _ ) . TVC este in BG.Am nevoie de schema si ceva indicatii , nu cunosc sasiul. Este echipat cu : ST92195B1/PBY , STV8203A , 25C5RCK , ST1803DHI , TDA8174A , 2x AN5265 . Semi proc nu se poate citi. Cu multumiri , anticipate , Virgil. PS Tub A51EKD . Stima.

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Va salut. Nu stiu ce sa mai verific . Tranz. Q410 , 411 , Q425 ,Q422 , 423 , 424 , sunt OK . Tensiunile masurate pe finalii audio = P1=10,2 V , P2=4,5V P3= 3,5V , P4=10,2V , P5=8v , P6=8,3V , P8=8,4V , P9=17,2V in fuct. Singura tensiune care se modifica la muting = P3=0v.Am gasit C633=1000Mf/25V devalorizat rau = 1nf.Cu stima , Virgil.

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Va salut. Daca problema sonorului am rezolvat-o partial , partea cu deschiderea pe verticala imi da probleme. Toti C. din BV masurati/ schimbati , aceeasi problema . Sus = -2cm ,jos = -5cm. Tvc indica sis. PAL . Cu stima , Virgil. ps Audio bun pe euroscart/ int.

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