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thomson flat


Sorin Schiriac

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model 21MX132, CHASIS itc008 Cu procesor TDA9554PS/N3/3 memo 22c04 are o manifestare dubioasa: totul functioneaza normal se aude sunetul dar imaginea se intrevede putin cind maresc G2. am schimbat memoria si se manifesta la fel .tind sa cred ca e un defect prin jurul baleaj vertical. poate ati mai intilnit acest defect ca eu nu-i dau de capat.

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  • Sorin Schiriac

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Valoarea lui G2 e normala sau mica.Scoate soclul de pe tub si verifica tensiunea de focalizare pune scanteia in evidenta.Parera mea e ca lipseste.Concluzia o tragi singur ,(schimba traful)

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tubul e bun tensiunile sunt bune cred ca un tranzistor ceva din asta digital ca e plin cu din astia,ar putea fi defect,poate are cineva vreo idee.

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Tranzistor trebuie sa fie ...!Acum vreo 3 ani am avut din cate vag im-i amintesc ceva de genul asta.Nu mai retin exact tipul de sasiu insa am gasit un BC 548 in scurtundeva langa radiatorul tanzistorului final linii cam la jumatatea placi.

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