DELL 5537 LA-9982P - not work after lightning strike

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  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3622
    • slovakia
    #1

    DELL 5537 LA-9982P - not work after lightning strike

    Hello.
    Have this DELL 5537 LA-9982P that not work after lightning strike to house.

    i replaced PQ701 but now have only 5.5V after it. ACDRV have voltage only for a moment when attach charger. BQ24717 have ACDET 2.58V, VIN 19V. Dont have this charger ic , can be replaced by other like 737?

    How to check if PSID is ok?

    MOD Edit: Schematic & boardview moved to new thread - https://www.badcaps.net/forum/showthread.php?t=122414
    Last edited by SMDFlea; 08-16-2023, 08:14 AM.
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14630
      • Canada
      #2
      Re: DELL 5537 LA-9982P - not work after lightning strike

      Remove the 4k resistor on ACDRV pin. Check again to see if the proper ACDRV voltage to ground of ~25v is present at the charger IC.

        Comment

        • ktmmotocross
          Boardkiller
          • Feb 2014
          • 3622
          • slovakia
          #3
          Re: DELL 5537 LA-9982P - not work after lightning strike

          no voltage on ACDRV when removed PR703.

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14630
              • Canada
              #4
              Re: DELL 5537 LA-9982P - not work after lightning strike

              Confirm voltage on REGN pin # 16 of the charger IC.

              Next, remove all power, meter in resistance mode.

              Measure the resistance to ground of the ACDRV pin on the charger IC.

                Comment

                • mcplslg123
                  Badcaps Legend
                  • Jun 2015
                  • 7262
                  • india
                  #5
                  Re: DELL 5537 LA-9982P - not work after lightning strike

                  Was PQ701 new?? I still think PQ701 is faulty. Measure resistance on PQ701 pins between
                  01. D1-D2
                  02. D1-G
                  03. G-S

                    Comment

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