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
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14021
    • 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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