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HP LA-C701P REV 1.0 does not trigger

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    HP LA-C701P REV 1.0 does not trigger

    HP LA-C701P REV 1.0 does not trigger after shutdown. However, when we remove the adapter and plug it in, it gets triggered.

    #2
    Re: HP LA-C701P REV 1.0 does not trigger

    1) is the power adapter the original and recommended model for this unit ?

    2) see attached -> measure the voltage on the 2 x DCin mosfets used by the charger IC to power the logic board.

    Meter in DC volts mode (30v or higher is ok).

    Red meter on each pin to test; black to ground.

    Check source (1-2-3); gate (4); drain (5-6-7-8) of each mosfet @ PQ202 & PQ203.

    Post each measurement for a review.
    Attached Files

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      #3
      Re: HP LA-C701P REV 1.0 does not trigger

      Check voltage on power button.

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        #4
        Re: HP LA-C701P REV 1.0 does not trigger

        thanks everybody
        PM_SLP_SUS# did not exist. We noticed that there is liquid contact on the motherboard. We carefully examined that area. We noticed a disconnected line on the back of the CPU. We repaired the line. that is all.
        Attached Files
        Last edited by simabilisim; 10-01-2022, 04:34 PM.

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          #5
          Re: HP LA-C701P REV 1.0 does not trigger

          Good catch! Well done.

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