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hp compaq cq71 caps/num lock blinking

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    hp compaq cq71 caps/num lock blinking

    Hi guys, the laptop powers on but with no display.
    The num lock and caps lock blink together once, looking at the code error it should be the cpu fault?

    The laptop has been to a repair shop, they said it's the mb.
    Does anyone have a schematic?
    Thanks

    #2
    Re: hp compaq cq71 caps/num lock blinking

    Yep it's the mb alright.
    Any help identifying PQ24?
    Attached Files

    Comment


      #3
      Re: hp compaq cq71 caps/num lock blinking

      No schematic? Model number of the board please, maybe i can find one.
      Originally posted by PeteS in CA
      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
      A working TV? How boring!

      Comment


        #4
        Re: hp compaq cq71 caps/num lock blinking

        I have searched but cant find one.
        Here is some pics of the mb.
        Thanks!

        DA00P6MB6D0
        PCB OP6 MB
        REV. D
        (6L. 234 2X205)
        Attached Files

        Comment


          #5
          Re: hp compaq cq71 caps/num lock blinking

          pq24=AO4496
          good luck

          and the schematic
          Attached Files

          Comment


            #6
            Re: hp compaq cq71 caps/num lock blinking

            Thank you, much appreciated.

            Looking at the datasheet it's a N-channel mosfet, I do have AO4456 on a scrap mb. but the gate-source voltage is 12V, whereas the AO4496 is 20V.

            Comment


              #7
              Re: hp compaq cq71 caps/num lock blinking

              look on scrap mb for fds6676as
              (acer 5520 cpu power , asus , fujitsu)

              Comment

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