zed air sa power batton problem

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  • karimreza2
    Member
    • Mar 2018
    • 23
    • Bangladesh

    #1

    zed air sa power batton problem

    Hi,
    my zed air as power batton in keyboard but on the keyboard power batton is brocken. so any body help how can i use secoundry power batton
  • jasko_jacker
    Badcaps Legend
    • Oct 2014
    • 1137
    • italy

    #2
    Re: zed air sa power batton problem

    Search on the keyboard connector the pin that corresponds to the power button, connect a cable and a button to this pin (the button must always be off and when it is pressed it must return from on to off) which sends the power on signal to ground .

    Comment

    • karimreza2
      Member
      • Mar 2018
      • 23
      • Bangladesh

      #3
      Re: zed air sa power batton problem

      sir, i search many times but i didnt found power botton pin on keyboard. please tell me number of pin.

      thanks

      Comment

      • karimreza2
        Member
        • Mar 2018
        • 23
        • Bangladesh

        #4
        Re: zed air sa power batton problem

        sir, i search many times but i didnt found power botton pin on keyboard. please tell me number of pin.

        thanks

        Comment

        • jasko_jacker
          Badcaps Legend
          • Oct 2014
          • 1137
          • italy

          #5
          Re: zed air sa power batton problem

          Have you a schematic or boardview ?

          Comment

          • jasko_jacker
            Badcaps Legend
            • Oct 2014
            • 1137
            • italy

            #6
            Re: zed air sa power batton problem

            With a multimeter try to find a pin with 3.3v , short it with ground only for <second (time) and see if the laptop go on

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india

              #7
              Re: zed air sa power batton problem

              Most likely pin2 of kbd connector is power switch but not sure.

              Comment

              • karimreza2
                Member
                • Mar 2018
                • 23
                • Bangladesh

                #8
                Re: zed air sa power batton problem

                There have no pin 3.3 volt. Without keyboard how can i make a powerbutton and from where 3.3 v connect to Groun. Please help

                Comment

                • String2016
                  Badcaps Legend
                  • Nov 2015
                  • 2229
                  • philippines

                  #9
                  Re: zed air sa power batton problem

                  find a ground to the keyboard connector connect the 3.3v and ground power switch button

                  Comment

                  • mcplslg123
                    Badcaps Legend
                    • Jun 2015
                    • 7262
                    • india

                    #10
                    Re: zed air sa power batton problem

                    The safest thing to do is find out a schematic with same kbc(if not avlbl for this model) and find out the switching pin and then trace continuity between that kbc pin to kbd connector. If 3v avlbl there, then just connect a wire on that pin and touch the other end of the wire to gnd point on the mb to turn it on.

                    Comment

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