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Polaritate mufa alimentare


IsBlacks

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buna seara am si eu urmatoarea intrebare: trebuie sa inlocuiesc mufa de la alimentatorul laptopului si am mufa cu tot cu fir si nu stiu polaritatea celor 2 fire, m-am uitat atent pe fir si unul are niste minusuri mai lungi(1cm) acela reprezinta minusul(partea exterioara a mufei)?

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