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POLAKU2002

lg 42la620s

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buna ziua.tv are led rosu dar care clipeste in serii de cite 3 ,tensiunile de pe powerboard sunt corecte.la o verificare pe main board am gasit o dioda minuscula notata 5U care rezulta deschisa inseriata cu ci p30364.intrebarea mea daca nu cumva acele 3 clipiri ale ledului rosu semnifica o eroare sau ceva legat de firmware...o schema poate aveti.multumesc

Edited by POLAKU2002

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e primul led care il am la reparat va rog un sfat,masurind tensiunea ptr leduri am divizat pe doua rinduri ,am 55v pe un rind si 55v pe celalat rind si cind sunt conectate leduri si cind nu sunt conectate,vreo idee?am verificat cu lanterna sa vad daca apare ceva pe ecran dar nu apare nimic.

Edited by POLAKU2002

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buna dimineata.toata noaptea am sapat cu schema in mina si am gasit toate tensiunile pe mainboard corecte,toate,,ramine dubiul celor 55v pe cele 2 canala, ptr doua rinduri  de leduri,pe powerboard sunt trecuti 105v high si 70v low per total sau per canal?

Edited by POLAKU2002

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