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donpetru

DP0806 - Intput-Out PCB audio amplifier with softstart and PSU

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Salutare donpetru, cumva R53 trebuia sa aibe alta valoare, am observat ca este cam aceeasi schema ca la SA100C, acolo avea 4.7K in loc de 22K, posibil sa fie o greseala in lista de piese la valoarea aceasta ? Multumesc si astept raspuns.

Edited by outtek

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In proiectul SA100C este vorba de un cu totul alt tip de releu fata de proiectul TA1000PSv2 sau DP0806. De fapt, in proiectul TA1000PSv2 sunt piese asemenea celor din circuitul de softstart DP0806. Deci, folositi valorile recomandate in liste de piese DP0806 sau cele de pe cablaj, care trebuie sa fie identice.

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Salutare, si in cazul meu de la ce poate sa apara acel efect? Tensiunea mai redusa de pe acel zener?

Multumesc.

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Care dioda zener ? D11 ? Daca da, verificati valoarea lui R51 = 220 Ohm si/sau C35.

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Seara buna, am rezolvat problema , se pare ca nu avea absolut nimica montajul ci comutatorul de test  folosit cu doua pozitii  care din ceea ce am observat comuta temporar si imperfect cel putin spus. In orice caz functioneaza corect asa ca sa fie invatare de minte sa verific pana si ultimul element de circuit folosit daca chiar este fuctional. O seara buna.

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