Acer Predator Helios 300 - will not power up if battery is CONNECTED

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  • survivalbloke
    Badcaps Veteran
    • Aug 2021
    • 302
    • United States

    #41
    Originally posted by mon2
    source & gate = 200k

    is too low. This could be again due to in-circuit testing but recommend to test with a fresh mosfet here.
    I don't have any new mosfets, so I pulled two N channel fets from a donor board. I tested them out of circuit, and found source > gate resistance as OL. I replaced PQB5 AND PQB6 since it too, had less than 200k source > gate. Both fets, soldered, are reading 143k source > gate. This motherboard is causing me to examine my life choices lol.

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    • mon2
      Badcaps Legend
      • Dec 2019
      • 14271
      • Canada

      #42
      examine my life choices
      I will take a membership to this club. Money is to be made elsewhere.

      Carefully measure the voltage to ground of each pin on the charger IC with the power adapter and the battery attached.

      Post the updated list with their pin # and function for another review.

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