HP Envy 15T-K200 No Power need help locating parts

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  • Grodo
    New Member
    • Jul 2018
    • 5
    • USA

    #1

    HP Envy 15T-K200 No Power need help locating parts

    HP ENVY Notebook - 15T-K200 CTO (ENERGY STAR)
    Product Number K2T41AV
    System Board Part Number 794987-001
    Processor I7
    Graphics Nvidia

    Hello All,
    I currently have acquired a laptop does not turn on or show any signs of life. There is no light by the charger port or any other LEDS. With a volt meter I have tested the AC adapter and it is functioning properly. There are 19.xx volt coming into the board from the DC Jack to the system board. There is 19.xxx volts at the drain of the the first Mosfet. Anything after the first Mosfet does not have power. I am assuming that the Mosfet is the issue however I am having difficulty in finding a replacement in the US. The Mosfet has the following numbers inscribed on it M3016D 452 02J. This mosfet is made by Ubiq. I was unable to find a data sheet on this Mosfet just for the QM3016D. I found a couple Chinese Mosfets but the did not have the 452 02J on them. Does anyone know where I would be able to find a replacement that would work and what the 452 02J stands for? I would also need some capacitors 046 100 25V as I found one that was leaking. Does any one have a schematic for this laptop? Finally does any one have any other suggestions that I should take a look at?
    Sincerely,
    Grodo
    Last edited by Grodo; 07-22-2018, 06:18 AM.
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 20731
    • UK

    #2
    Re: HP Envy 15T-K200 No Power need help locating parts

    Any other part number on the board,such as DAY31AMB6C0 ,and the REV number
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    Comment

    • Grodo
      New Member
      • Jul 2018
      • 5
      • USA

      #3
      Re: HP Envy 15T-K200 No Power need help locating parts

      SMDFLEA thank you the reply! Part number on board is DAY31AMB6C0 REV : C

      Comment

      • SMDFlea
        Super Moderator
        • Jan 2018
        • 20731
        • UK

        #4
        Re: HP Envy 15T-K200 No Power need help locating parts

        Your motherboard is a Quanta Y31A ,theres no free schematic or boardview available but you`ll find some for sale,i`ve attatched a different schematic for reference,as the DC-IN section may be similar. The mosfet part number is QM3005N3 . What voltage do you get on pin 4
        Attached Files
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        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 20731
          • UK

          #5
          Re: HP Envy 15T-K200 No Power need help locating parts

          EDIT: forget the mosfet part number above. Can you post a photo of the mosfet
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          • Grodo
            New Member
            • Jul 2018
            • 5
            • USA

            #6
            Re: HP Envy 15T-K200 No Power need help locating parts

            I have found the Schematic for Quanta Y31A mother board.
            Attached Files

            Comment

            • Grodo
              New Member
              • Jul 2018
              • 5
              • USA

              #7
              Re: HP Envy 15T-K200 No Power need help locating parts

              Here is the picture of the Mosfet.
              Attached Files

              Comment

              • SMDFlea
                Super Moderator
                • Jan 2018
                • 20731
                • UK

                #8
                Re: HP Envy 15T-K200 No Power need help locating parts

                Originally posted by Grodo
                I have found the Schematic for Quanta Y31A mother board.
                This schematic is for a Quanta Y11C ,its a closer match though. Check the voltage on source and gate ,on the pins.
                Last edited by SMDFlea; 07-22-2018, 11:34 AM.
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                Comment

                • R_J
                  Badcaps Legend
                  • Jun 2012
                  • 9535
                  • Canada

                  #9
                  Re: HP Envy 15T-K200 No Power need help locating parts

                  The mosfet is a QM3016D The other numbers are date codes
                  Attached Files
                  Last edited by R_J; 07-22-2018, 04:15 PM.

                  Comment

                  • mcplslg123
                    Badcaps Legend
                    • Jun 2015
                    • 7262
                    • india

                    #10
                    Re: HP Envy 15T-K200 No Power need help locating parts

                    If you have HP g6 or Compaq CQ42 scrap motherboard-they use a similar mosfet. Check there datasheet with 3016d datasheet and perhaps you will get a replacement from them.

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 20731
                      • UK

                      #11
                      Re: HP Envy 15T-K200 No Power need help locating parts

                      If you can`t find one on a donor board theres new ones on ebay and aliexpress .

                      https://www.ebay.ca/itm/1-PCS-New-QM...sid=m570.l1313
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

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