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Pavillion DV7 white screen

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    #1

    Pavillion DV7 white screen

    Hello everyone

    I've decide to learn about electronics, i'm from the communications and networks wolrd!

    I'm in process of learning!

    I have problems with a Pavillion DV7

    Motherboard is a DAOLX8MB6D1 Rev. D (LX89)

    The problem is white screen

    when power it on i can see for a second the logo of HP and then it fade to white
    If i connect external monitor via VGA i can see the image in the external monitor, whereas via HDMI there is no image
    When I connected the VGA cable and the HDMI simultaneously, it shows 3/4 parts of the screen ok, and 1/4 white top
    a few minutes later it has fade to white and I had no more image in screen or via VGA.

    I have the schematic for this MB

    I'm looking at the LCD connector section

    Any advice?

    Thanks in advance!!!
    Tags: None
    #2
    Re: Pavillion DV7 white screen

    So it works on VGA only? Try to run a graphics stress test when on VGA.
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

      #3
      Re: Pavillion DV7 white screen

      I do have VGA output to external monitor, still white screen laptop
      No HDMI output, no HDD attached

      Comment

        #4
        Re: Pavillion DV7 white screen

        no one?

        Comment

          #5
          Re: Pavillion DV7 white screen

          For hdmi output it might need to boot in windows complete, for driver - higher resolution.
          My guess is problem on the lcd maybe.

          Comment

            #6
            Re: Pavillion DV7 white screen

            I agree. Check that connector is fully plugged in on back of Lcd panel

            Comment

              #7
              Re: Pavillion DV7 white screen

              ok! I will keep you updated!!!!

              Comment

                #8
                Re: Pavillion DV7 white screen

                measure voltages on lvds connector. Some voltage might be missing

                Comment

                  #9
                  Re: Pavillion DV7 white screen

                  Originally posted by mcplslg123 View Post
                  measure voltages on lvds connector. Some voltage might be missing
                  Don't know exactly how to measure them, i mean, the values.
                  By the way, u were right, i think my LCD is bad.
                  When i firmly press the left side it show the image, but the image displayed is displaced 1/3 exactly from the upper side, and the first 1/3 is full white or white patterns.
                  Is it fixable?
                  Thanks to every one!!!!!!!

                  Comment

                    #10
                    Re: Pavillion DV7 white screen

                    Nope you have to changed the lcd panel unfortunately.

                    Comment

                      #11
                      Re: Pavillion DV7 white screen

                      ok!, thanks for the advice!!!
                      Again thanks to every one for helping me!
                      See u soon!

                      Comment

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