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Tv NOKIA5525-SursaTEA2164 def


Guest 1234mar
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Guest 1234mar
post-46164-139829504156_thumb.jpgAm un tv.NOKIA5525 VT EE ,tranz comutator din sursa scurt(BUF405A).Am inlocuit condensatorii din sursa ,dioda BZX3V din baza tranz osc,alte piese nu am gasit def.Tens pe C.I.TEA2164 aproape normale 9,5V pin16,15...Bec pe colect. BUF405A tranz(nou),nu se aprinde(tranz. linii decuplat).Cum pot afla daca TEA2164 e def(nu am osc. sau frecventmetru,doarAVO dig. DT 9205A) pt ca ma gandesc la var.sursa aux(fara chopper,nu stiu care si cum o inserez in montaj).O alta problema,am gasit in mag. BUF405 neizolat ,trebuie sa scot radiatorul(model B cu aripi neinchise) sa-l gauresc pt surub si sa izolez tranz.? Va rog sa ma ajutati sa-l repar.Va multumesc.
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Daca te referi la UPS001 nu stiu daca va merge in sasiul asta.Sursa cu TEA2164 este sursa master/slave si functioneaza altfel decat o sursa simpla.In secundar nu ai nimic in scurt?Nu pot vedea schema dar verifica sau schimba conzii din primar neaparat ,cei electrolitici.

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