Dell E7240 No power... Need suggestions

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  • shakib200
    Member
    • Oct 2021
    • 46
    • dhaka
    #1

    Dell E7240 No power... Need suggestions

    Model : Dell E7240 ( LA-9431p)
    All coils ok.. No short
    When injecting voltage supporting charging ic CD3301B ic is heating.
    After replacing new cd3301b ic, the new ic is also heating.
    ​​​​​​

    *** This attached image is for reference.
    Attached Files
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14120
      • Canada
      #2
      If it is heating:

      1) is the component a known good device?
      2) soldered in ok?
      3) check the resistance to ground of each pin (with no power). A short or low resistance load can cause heating.
      4) a number of YouTube videos claim this part can be bypassed- not sure

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