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defect tv cinex

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Am primit acest tv cinex,model nu are eticheta de pe capac,sasiu 03TA018K,cu urmatorul defect,dadea sa plece si ma arunca in standbay,am schimbat condesatori din sursa,tot degeaba,si am ajuns la concluzia ca ar fi defect tda1771,lam scos si am montat altul,tv-ul a pornit dar cu imagine,sus de o palmna negru,jos o linie alba,daca al las cateva secunde incepe sa se mareasca imaginea,si revine la normal,ce pot face. tensiuni pe TDA1771 sant 1=12,90v, 2=27,14v, 3=4,20v, 4=6,73v, 5=masa, 6=4,70v, 7=5,60v, 8=26,55v, 9=26,70v, 10=1,80v,

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