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nickxyzt

multimetru mas830h - depanare

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Salut,Am un multimetru MAS830H. Dintr-o data are un comportament ciudat.Ecranul se aprinde, se schimba punctul de zecimale cand comut, dar nu masoara nici o valoare cum trebuie. Implicit porneste cu niste valori pozitive care se schimba cate putin fara sa fac nimic. Indeferent ce vreau sa masor, nu masoara nimic, doar cresc foarte putin numerele afisate initial. Pe testare continuitate, functie comuna cu testare diode, tiuie in continuu fara ca sondele sa fie conectate macar. Se poate intampla sa nu tiuie initial, dar dupa prima folosire tiuie in continuu.Am incercat si nu aprinde ledurile.As vrea sa stiu daca a mai intalnit cineva situatia aceasta, sau poate are cineva o idee de unde sa o apuc. Nu am alt multimetru la dispozitie pentru depanare. Si are aproape totul smd.Am verificat siguranta si sondele, sunt bune.Piese mai mari are: un varistor, o dioda si un condensator ceramic (cred, este maroniu inchis).Multumesc anticipat oricui imi va da o sugestie. Sper sa nu fie chipul.

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