n5110 power issue

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  • menshawy
    Badcaps Veteran
    • Aug 2013
    • 400
    • egypt
    #1

    n5110 power issue

    hi all
    n5110 power problem
    the m.b power led is lighting but the fan dont run
    pl4101 3.3v ok
    pl4102 5v ok
    u3602 3d3v_s5 ok
    u3601 5v_s5 ok
    3d3v_s0 and 5v_s0 is missing
    i think the problem in 15v_s5 because it is missing
    pg4101 has 1.8v
    u3601 and u3602 has the same 1.8v
    can any one help me plz
    i change pu4103 tps51123 but not solve the problem
    Tags: None
    • Techtiger
      Badcaps Legend
      • Oct 2014
      • 1601
      • france
      #2
      Re: n5110 power issue

      test PD4103 PD4101 all legs 123 123 voltage,u3601 and u3602 need +15V to N-Channel Fet to bypass voltage to Gate
      Last edited by Techtiger; 03-28-2019, 10:58 AM.

        Comment

        • menshawy
          Badcaps Veteran
          • Aug 2013
          • 400
          • egypt
          #3
          Re: n5110 power issue

          PD4101
          PIN1=5.15V
          PIN2= -3.22V
          PIN3= -7.34V
          PD4103
          PIN1= -3.22V
          PIN2= 1.8V
          PIN3= -2.54V
          thanks sir for help

            Comment

            • menshawy
              Badcaps Veteran
              • Aug 2013
              • 400
              • egypt
              #4
              Re: n5110 power issue

              thanks techtiger for help
              problem solved after change PD4101

                Comment

                • Techtiger
                  Badcaps Legend
                  • Oct 2014
                  • 1601
                  • france
                  #5
                  Re: n5110 power issue

                  Originally posted by menshawy
                  thanks techtiger for help
                  problem solved after change PD4101
                  no worries next time uplode if you have the Schematic for quick answer

                    Comment

                    • menshawy
                      Badcaps Veteran
                      • Aug 2013
                      • 400
                      • egypt
                      #6
                      Re: n5110 power issue

                      ok

                        Comment

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