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Tv LG defect


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Salll... Cu respect ...Am un tv LG Model CF-21D70X, cu urmatorul defect...Nu iese din sta-by..Sursa functioneaza normal, verificata cu "becul " ...U1 125 VLa actionarea Pr.+, ledul se stinge, dar nu are inalta...Am verificat tensiunile secundare , par in regula ...Multumesc tuturor...

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daca aveti tensiune de start ...verificati in continuare daca jungla scoate impulsuri linii si traseul acestora pina la tranz.final linii...tensiunea care alimenteaza traful driver...ce sa va mai spun... trebuie sa faceti pasii necesari(logici) pina la gasirea defectului...

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fa-i o cura de condensatoare in sursa,linii,trafo driver si va functiona.u1 cred ca e putin cam mare,de regula este 117v.incepe cu sursa(schimba electroliticii din primarul si secundarul sursei mai ales cei de pe u1).schimba c408 si filtrajul de pe 8v.verifica alimentarea trafo driver.poti schimba si finalul linii daca nu esti sigur de cel prezent.

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