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Aa15 la-d071p rev 1.0 not charing

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    Aa15 la-d071p rev 1.0 not charing

    The dell laptop wot charge the battery Ive tried to replace its battery and charger now I think the problem is on the board

    Measuring PR765 im getting 0 voltage that in the schematic I should have 17v

    ive check the charger port form the midle pin its OK
    because some of dell charger the charger port can get damge easily ..


    what to do next ?

    #2
    Re: Aa15 la-d071p rev 1.0 not charing

    You are not getting +17.4V_BATT+ on PR765 and there could be 2 reasons:
    01. Batt is deeply discharged/dead
    02.You charger ic's high/low fet's gate not opening.

    Does it give any adapter warnings?? Charger detected in bios setup??

    Comment


      #3
      Re: Aa15 la-d071p rev 1.0 not charing

      I didnt have any warning in the bios it will jus t boot on windows then looking at the battery icon battery not charging

      The led indicator keeps on flashing orange , even Ive change its newly battery from a working same model

      Comment


        #4
        Re: Aa15 la-d071p rev 1.0 not charing

        pls check psid singnal first
        and wattage showing or not pls check in bios

        Comment


          #5
          Re: Aa15 la-d071p rev 1.0 not charing

          Originally posted by dilip.pawar31 View Post
          pls check psid singnal first
          and wattage showing or not pls check in bios
          I only have digital tester sir maybe it need OSILOSCOPE

          Comment


            #6
            Re: Aa15 la-d071p rev 1.0 not charing

            Does it show battery percentage correctly and does it run from battery with AC adapter disconnected?
            OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

            Comment


              #7
              Re: Aa15 la-d071p rev 1.0 not charing

              Originally posted by kalilinux25 View Post
              I only have digital tester sir maybe it need OSILOSCOPE
              Neither dmm nor scope is needed to check. just press F2 and go to relevant section and see it detects the adapter or not.

              Comment


                #8
                Re: Aa15 la-d071p rev 1.0 not charing

                Originally posted by piernov View Post
                Does it show battery percentage correctly and does it run from battery with AC adapter disconnected?
                It shows battery is in 40% but not charging

                Comment


                  #9
                  Re: Aa15 la-d071p rev 1.0 not charing

                  Originally posted by mcplslg123 View Post
                  Neither dmm nor scope is needed to check. just press F2 and go to relevant section and see it detects the adapter or not.
                  The adapter is detected sir beacuse I can power on the unit without the battery I go to the bios

                  Comment


                    #10
                    Re: Aa15 la-d071p rev 1.0 not charing

                    Powering on a unit only on ac adapter doesnt means adapter is detected. However, in your case it is detected as it shows it 65W correctly.

                    Comment


                      #11
                      Re: Aa15 la-d071p rev 1.0 not charing

                      Originally posted by mcplslg123 View Post
                      Powering on a unit only on ac adapter doesnt means adapter is detected. However, in your case it is detected as it shows it 65W correctly.
                      What the next thing to do sir?

                      Comment


                        #12
                        Re: Aa15 la-d071p rev 1.0 not charing

                        DAT_SMB,CLK_SMB,SYS_PRES-Measure these signals present or not on battery connector. Check PQ704/708 as well.

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