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Defect la tv NEI 25/28


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Buna seara Va supun atentiei urmatorul defect: Sunet normal,rastru dark, nu afisaza osd.La marirea UG2 apare rastru fara imagine cu cursa inversa. Am inlocuit Finalul video TDA5101 siTDA8391.Exista impulsuri sandcastle.Tensiunile pe catozi r g b=183v.Tensiunile de atac la intrarile TDA5101=1,2v.Va rog dati-mi o mina de ajutor. Va multumesc

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Buna seara Va supun atentiei urmatorul defect: Sunet normal,rastru dark, nu afisaza osd.La marirea UG2 apare rastru fara imagine cu cursa inversa. Am inlocuit Finalul video TDA5101 siTDA8391.Exista impulsuri sandcastle.Tensiunile pe catozi r g b=183v.Tensiunile de atac la intrarile TDA5101=1,2v.Va rog dati-mi o mina de ajutor. Va multumesc

Aveti 12v pe selector?In ultima instanta poate fi chiar procesorul sau memoria
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