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bu808 dfh


Guest vasile73
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Guest vasile73

bu 808dfhaparat masura pozitionat pe diodaB-E= 607 ohmi intr-un singur sensB-C= 478 ohmi in ambele sensuriC-E= 652 ohmi intr-un singur sens E bun acest tranzistor sau nu? Momentan nu gasesc sa cumpar si nici 2sc5388 nu gasesc pe aproape.

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Omul a intrebat daca e bun ,nu daca aveti altul!! Ce probleme aveti cu tv-ul? Ce tensiune aveti pe colector la el?!?Expresiile astea:''B-E= 607 ohmi intr-un singur sens;B-E= 478 ohmi in ambele sensuri'' se bat cap in cap!!! Eventual ati vrut sa spuneti inversind cablurile de la aparat

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Guest vasile73

am corectatB-C= 607 ohmi intr-un singur sens la inversarea tastelorB-E= 478 ohmi in ambele sensuri la inversarea tastelorC-E= 652 ohmi intr-un singur sens la inversarea tastelor

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Guest vasile73

ma intereseaza daca e bun atata tote bun, l-am montat in alt tv si e bun tensiunea pe bec e 115 v cond-ul din baza e schimbat. Cum pot verifica impulsurile in dreiver fara osciloscop?

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Guest vasile73

0v, nu exista tensiune negativa pe baza finalului . Q 601 e bun, se alimenteaza in colector cu 11v. Sa schimb procesorul? Memoria am schimbat-o si nimic , Am verificat-o si pe cea originala si pare in regula.

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