HP MS21 All In One PC

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  • PcRepairMan
    Member
    • Sep 2018
    • 14
    • United Kingdom
    #1

    HP MS21 All In One PC

    Hi,

    I am trying to fix the motherboard on the HP MS21 All In One PC.

    The charger light is showing on the motherboard.
    When the power switch is pressed - a blue light flashes for a millisecond and goes off. This will not repeat unless you remove the charger and drain the circuit.

    On checking the board I found the PQ39 in a melted state. So, I replaced it with a AO4466 (I didn't have the AO4468)...

    No power is showing on the power switch.

    On the PU7 - pin 6 has 19v and pin 4 has 3v

    I am now stuck on what else I could check to find the problem.

    I look forward to your help..
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    • PcRepairMan
      Member
      • Sep 2018
      • 14
      • United Kingdom
      #2
      Re: HP MS21 All In One PC

      Anyone?

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