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Acer Aspire 5750_5755G NO DISPLAY

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    Acer Aspire 5750_5755G NO DISPLAY

    Acer Aspire 5750_5755G NO DISPLAY

    MOTHER BOARD
    P5WE0 LA-6901P
    Rev2.0

    PROBLEM NO DISPLAY.

    I CHECKED ALL VOLTEGES .
    ONLY +VGFX_CORE NOT PRESENT.
    I CHANGED DRIVER IC, MOSFET, BUT STILL SAME.
    ANYONE CAN YOU HELP TO FIX THIS PROBLEM?

    #2
    Re: Acer Aspire 5750_5755G NO DISPLAY

    Remove all power -> meter in resistance mode.

    Check the resistance to ground of this power rail that is not being enabled (+VGFX_CORE).

    What is the exact resistance?
    Attached Files

    Comment


      #3
      Re: Acer Aspire 5750_5755G NO DISPLAY

      https://logi.wiki/index.php/User:Pie..._I_solve_it.3F
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

      Comment


        #4
        Re: Acer Aspire 5750_5755G NO DISPLAY

        Originally posted by mon2 View Post
        Remove all power -> meter in resistance mode.

        Check the resistance to ground of this power rail that is not being enabled (+VGFX_CORE).

        What is the exact resistance?
        9.3 Ohms

        Comment


          #5
          Re: Acer Aspire 5750_5755G NO DISPLAY

          Any news on this repair ?
          I have exactly the same problem !
          ACER Board: Q5WV1 LA-7912P

          All voltages are present except +VGFX_CORE
          Controller chip is 95836H gives no output on UGATE1G and LGATE1G that drives both mosfets for +VGFX_CORE

          No shorts detected.
          Regards, Geert

          Comment


            #6
            Re: Acer Aspire 5750_5755G NO DISPLAY

            Sometimes bios flash solves it,sometimes replacing the PWM 95836 helps along with Both the mosfets. Sometimes its even the replacement of cpu that works. So no definite answers. be careful with the heat as this board's pcb doesnt take heat very well.

            Comment


              #7
              Re: Acer Aspire 5750_5755G NO DISPLAY

              same case, How with this case? solved or not?

              Comment

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