Guest ParadoXs Posted July 23, 2009 Share Posted July 23, 2009 Am Thomas 51TCB081 (cu componente romanesti). Sursa functioneaza foarte bine cu sarcina externa 100W(bec), cand cuplez bobina L703 sursa se mentine doar in stand-by. Dupa ce ii dau start se mentine pentru maxim 5-6 secunde apoi scade lent pana la 100Volti dar astea numai la nivel de alb marit sau daca maresc volumul, se strange imaginea pe orizontala si creste pe verticala. Daca ii decuplez mufa k103(RGB) pentru final video sursa ramane constanta chiar daca volumul este maxim.Ati intampinat acest defect? Link to comment
palcu ion Posted July 23, 2009 Share Posted July 23, 2009 schimba cond electrolitici din sursa Link to comment
Guest ParadoXs Posted July 23, 2009 Share Posted July 23, 2009 Sunt inlocuiti toti (Sursa cu bec sta si 5 ore fara sa se modifice, numai in momentul in care cuplez bobina pt linii atunci scade sursa) Link to comment
maresmircea57 Posted July 23, 2009 Share Posted July 23, 2009 Verificati cele doua rezistente in paralel din emitorul tranzistorului T701(2x1ohmi), si schimbati C718 siC701. Link to comment
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