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lcd samsung le26r74bd (r) schema invertor


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Verifica lampile pe un invertor extern, fiecare in parte. Se pot gasi invertoare recuperate de pe laptop-uri sau chiar de pe forum.Daca o singura lampa e defecta, invertorul trece in stand-by.Poti sa le inspectezi si vizual, cele uzate prezinta innegrire accentuata la capete, am gasit chiar izolatia de cauciuc carbonizata intr-un caz.Trebuie masurati tranzistorii invertorului si refacute lipiturile suspecte prin zona trafo invertor si verificati/schimbati condensatorii electrolitici (invertorul are filtrajul propriu pe placa)

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revin cu defectu mentionat ;am verificat inv pe alt lcd merge perfect ;am desfacut panelu ,nici o lampa neagr a sau altceva vizibil, l-eam alimenentat pe fiecare in parte ,si surpriza nici una nu se aprinde pina la capat; am schimbat inv de teste ,aceiasi problema ,cine sa intilnit cu asa ceva ,sa fie tot panelu defect ? model t260xw02-v5 24v-3,5a samsung 8 lampi ; daca are careva de vinzare

oferta [email protected] sau tel 0747236425

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