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Defect Tv Akai CT21 WKD


Nonny149

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Releul televizorului decupla imediat,la pornire.Am verificat sursa cu bec si am vazut ca e OK,am inlocuit trafo linii,simptomul era acelasi.La o privire mai atenta am vazut un condensator putin umflat in zona baleaij cadre.Am masurat IC401-AN5534 care prezenta scurt intre iesire si masa.Dupa inlocuire tv-ul functiona dar avea un tiuit cu frecventa de aproximativ 1Khz suprapus pe sonor,cauza era C206 - 10 micro / 16v.tensiunea de comanda volum nu mai era filtrata, impulsurile de la procesor se suprapuneau astfel peste semnalul audio.

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