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Problema cu afisajul Danita 640!


Guest tehnic1

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Guest tehnic1

Salutare! Am primit o statie emesie receptie Danita 640 _-dupa ce utilizatorul a alimentat-o pe 24v si invers polar- am schimbat stabul de 5v ,tranzistori,rezist,cond,amplificarea etc. Problema este ca nu se aprinde afisajul,in contextul in care am verificat tot inafara de integratul LC72322 care are o impedanta de alimentare pe cablaj de 35 de ohm, pe care nu-l gasesc in magazine!Poate sa ma lamureasca cineva unde il gasec sau este in alta parte problema?Mentionez ca tensiunile de alimentare sunt corecte aferent integratului.Atasez schema statiei.

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