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LCD TV Horizon 22" model 2205SW


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Sal, am primit la reparat un LCD TV Horizon 22" model 2205SW. Inainte sa-l primesc clientul spunea ca functioneaza numai ca TV, ca si monitor nu. Cand l-a adus a spus ca nu mai vrea nici ca TV. Manifestari: il pornesc din buton, ecranul e intunecat, dar lampile se aprind, in vreo 10-20 sec apar "purici" pentru vreo 10-15 secunde apoi dispare tot si ramne iar ca la inceput. La inceput cat apar puricii daca vreau sa schimb sursa de semnal, afisajul se transforma in patratele colorate apoi dispare. Dupa ce ramne ecranul intunecat nu mai merge sa-i dau nici o comanda din butoane, nici macar sa-l opresc.Tensiunile livrate de sursa: 12,98V si 5, 24v in sarcina, 13,60V si 5,70V in gol. Sursa prezinta urme de lipituri , presupun ca au fost verificati schimbati toti electroliticii. Pe placa digitala sunt lipituri la o siguranta smd care e ok, sunt tensiuni de 3,3, 5 si 12v.Ce credeti se mai poate repara? E alterat continutul memoriei sau e ceva defect? Multumesc.

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