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Guest ionut100

Tv philips model 21PT6820/01

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Guest ionut100

Salut,problema este ca tv nu mai are imagine,sunet are.Am incercat sa maresc tensiunea G2 de pe traf si imaginea revine(tv functioneaza normal)dar dupa oprire tv ,problema revine.Care ar fi cauza?

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Guest ionut100

Multumesc pentru raspunsuri.Am obsevat ca finali video sunt blocati si pe catozi tubului am 188v.Care ar fi cauza? Daca maresc tensiunea G2,pe catozi am 120v(imaginea ok) pana la oprirea tv.Are cineva o schema(sasiu PT190R)?

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Guest ionut100

Multumesc pentru schema,aceea este.Am gasit intrerupt traseul la pinul 8 de la traful de linii.Cum trebuie reglat G2?La o tensiune de 260v,dupa o repornire nu mai am imagine iar la o tensiune de 290v dupa o repornirea am imagine,este normal sa se intample asa?Tensiunile au fost masurate cu DT9205.

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daca functioneaza ok asa si imaginea nu este prea luminoasa si nu apare cursa inversa cadre(acele dungi subtiri orizontale putin inclinate in partea stanga) il puteti lasa asa fara probleme.totusi s-ar putea sa fie tubul defect si sa apara defectul dar oricum nu riscati nimic.

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