leo 17 Posted March 19, 2015 Share Posted March 19, 2015 am un tranzistor dintr un detector radar si e defect si nu stiu nimic de el doar ce scrie pe el kia 78 so5p 726unul si al doilea kia 78 so9p 747.va multumesc Link to comment
dan-a2 Posted March 19, 2015 Share Posted March 19, 2015 Nu cumva sunt stabilizatoare de tensiune , respectiv de 5volti si de 9v ?? Link to comment
leo 17 Posted March 19, 2015 Author Share Posted March 19, 2015 unul din stabilizatoare cel de 5 v l am gasit ars ..acest detector radar a fost conectat invers la tensiune .si nu se mai deschide dupa ce am schimbat stabilizatorul de 5 v ..mi se aprinde un led pt on detector si doar atat ..cel de 9 v e ok ..ce ar mai putea fi defect ? Link to comment
leo 17 Posted March 20, 2015 Author Share Posted March 20, 2015 nimeni nu are nici o idee ? Link to comment
leoncris Posted March 21, 2015 Share Posted March 21, 2015 Scoate stabilizatorul si verifica bara de 5V fata de masa, Sigur mai ai ceva ... troznit p'acolo. Link to comment
leo 17 Posted March 21, 2015 Author Share Posted March 21, 2015 a fost alimentat invers la tensiune de 12v ..5v este cat si 9v pe stabilizator ..am un singur led pt care imi indica ca am tensiunea de 12v si altceva nimic Link to comment
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