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cpp330 probleme

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Asta'i defectul initial , sau dupa remediere a ramas ... asta ?Valoarea masurata , corespunde schemei ?Cu ea scoasa , TOATE tensiunile sunt corecte si stabile in sursa ?Preventiv schimba C811,815,817 intrucat perturbatiile aparute in pinii 8 si 9 IC conduc la intrarea in protectie a IC_ului , implicit a ... TV_ului.

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La tipul asta de sursa trebuie acordata o atentie deosebita pinilor 7-8-9 ai TDA4601. Prin ei sunt "aduse" informatii privind functionarea TV_ului.Depasirea puterii , scurturi in secundar ...Asa ca , daca spui ca ai schimbat toate C_urile din primar , verifica atent toate componentele de pe pinii mentionati si incepe cu R804 a carei valoare este ... critica , apoi , restul.De aceea intrebam de tensiunile din sursa si de pe IC.Iar daca ai un osciloscop , nu te sfii sa'l folosesti.Eu cred ca defectul nu are nicio legatura cu sursa care este intrata in protectie datorita unui consum mare in ... secundar.

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