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ELFORUM - Forumul electronistilor
Guest KLM_85

Problema microfon

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Buna ziua ! Am un microfon cu preamplificare folosit intr-un sistem dvr. Problema e ca dupa cateva minute microfonul se opreste, si nu mai functioneaza doar daca il opresc cateva minute. Am virificat componentele cu un multimetru, pare sa fie totul in regula , nici de incalzit nu se incalzeste niciuna. Eu cred ca unul dintre condensatori poate sa fie de vina. Va rog daca puteti sa ma ajutati barem cu o parere. Multumesc anticipat !

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Sanatate permanenta ! Banui ca se alimenteaza din sistem.Vezi pe care fire vine tensiune (eu cred ca rosu si negru) si urmareste daca e stabila in timp.Il poti testa si independent : il alimentezi separat si duci iesirea lui intr-un amplif. oarecare.Daca ai alta capsula-condensator schimb-o.

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