L650 no 5V

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  • Prosatanosz
    Senior Member
    • Nov 2015
    • 108
    • Hungary

    #1

    L650 no 5V

    HI!

    There is no 5V. Mobo 6050a2332301-mb-a02. 3.3V ok. No power on of course. Any idea?
  • Techtiger
    Badcaps Legend
    • Oct 2014
    • 1601
    • france

    #2
    Re: L650 no 5V

    check the Rerestence to GNd +5VALWS line coil uplode the schematic

    Comment

    • Prosatanosz
      Senior Member
      • Nov 2015
      • 108
      • Hungary

      #3
      Re: L650 no 5V

      Hi Tiger! The best schematic i found. Resistance is 328Ohm.
      Attached Files

      Comment

      • Techtiger
        Badcaps Legend
        • Oct 2014
        • 1601
        • france

        #4
        Re: L650 no 5V

        test voltage on TPS51125 voltage in all pins , test voltage on Q6206 drain pin 5 6 7 8 for +19V VBAT ,test Q6207 Q6206 for any short D S G

        Comment

        • Jesse James
          Senior Member
          • Sep 2018
          • 95
          • Canada

          #5
          Re: L650 no 5V

          Just a suggestion. Check that usb ports are no broken/shorted.

          Comment

          • Prosatanosz
            Senior Member
            • Nov 2015
            • 108
            • Hungary

            #6
            Re: L650 no 5V

            Hi!

            USB ok, Q6206,07 ok, vbat ok, TPS replaced. Entrip2 0V, Entrip1 1.3V i think that's the problem.

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france

              #7
              Re: L650 no 5V

              test R6209 130k ok or not, test D6201 pin 1 3

              Comment

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