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ELFORUM - Forumul electronistilor

testare motherboard

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Buna seara.Prin incursiunile mele pe youtube am vazut ceva interesant la un user sloven...o metoda de diagnostic a placilor de laptop...aplicarea unei tensiuni de 1.5v la 4a din cite imi amintesc iar componenta cu probleme se supraincalzea,apoi cu mina detecta aceasta componenta sau cu un detector de temperatura...o metoda interesanta...stie cinevamai multe despre aceasta metoda?

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Injectare de tensiune corespunzatore si curent mare 4-5 A din sursa externa , pe o "bara" de tensiune in scurt circuit 1,5V ,3,3V 5V ,19V ....etc si vezi ce se infierbanta .

Se mai poate folosi si isopropilic in zona unde se infierbanta iar componenta de pe care se evapora cel mai repede alcoolul este in scurt .

Asta ca sa nu te frigi la degete .

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