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spyry

TV SHARP se blocheaza pe H

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Salutare MESTERI MARI! Am la reparat un tv SHARP Model SV-2142SCN ,cu urmatoarea problema:dupa pornire la 30 de secunde se opreste ,si nu ramane nici macar in stand by ,dupa sursa raman toate tensinile OK,insa BO numai lucreaza ,implicit mu mai ies tens recuperate {12v} ;samd .Rog ceva sfaturi daca se poate si o schema !!!!!! Proc ix1147CENI;junglaix0713CENI;BV ix0640CE.Multumesc anticipat.

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Salut, vezi ce anume dispare din urmatoarele:-tensiunea de alimentare de pe circuitul jungle ( partea de oscilator linii )-tensiunea de colector a prefinalului linii-comanda pe baza a prefinalului linii-continuitate emitor prefinal linii fata de masa-continuitate trafo driver ( primar si secundar )-comanda pe baza a finalului linii-tensiunea de colector a finalului linii-continuitatea infasurarii primare a trafo linii ( lipituri sau trasee )-continuitate emitor final linii fata de masaSau vezi sa nu apara un supraconsum pe etaj final linii.Dupa ce ai vazut parametrul afectat, cauti componenta defecta, eventuale lipituri reci, trasee intrerupte sau un eventual consum marit pe etaj final linii ( scurt partial ).Succes!

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