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giany

lcd defect

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am o chinezarie de lcd DIKOM TVH-2211 cu placa de baza B.LT712C CU PROCESOR TDA8890H1/N18defectul consta in faptul ca imaginea apare cateva secunde dupa care apare secvential un fond pe mai multe culori care se schimba la cateva secunde din rosu in verde in galben si alte culori daca scot antena si o bag din nou apare imaginea iar cateva secunde si din nou fond colorat ,sunetul ramane la fel face si pe intrare PC sau AV, am inlocuit memoria cu una goala si nu s-a schimbat nimic,meniul apare peste fondul colorat, daca a mai intalnit cineva acest defect.

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Sunt unele chinezari care daca nu au semnal trece prin culori sau ai activat modul de ”test” ecran si atunci iara asa se manifesta.Unele lvds uri au direct pe conector acest pin de test care il poti face din service (il pune la masa).Da mai multe detalii ( asa avenit , ai schimbat tu panelu ce model de panel etc.)Ps nu cunosc modelu de sasiu la ce ai tu. dar ti-am dat niste idei.

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