Display is exhibiting a green screen

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  • stephkre
    Member
    • Jul 2009
    • 26
    #1

    Display is exhibiting a green screen

    I have a Optiquest Q7 lcd monitor that is fine when it turns on but when it picks up the signal from the computer it shows green. So when I first turn on the screen it shows "signal cable disconnect" fine but when i plug in the vga cord it will display the screen with a greenish tint. I have tried a different working vga cord, I have tried a different computer. I am not sure what the problem is. Sorry for the not too decent photos the screen is completely green not just half of it like shown in the picture.
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    • stephkre
      Member
      • Jul 2009
      • 26
      #2
      Re: Display is exhibiting a green screen

      Does anybody have any suggestions on how to fix this problem.

        Comment

        • shadow
          Badcaps Veteran
          • Feb 2007
          • 732
          • Australia
          #3
          Re: Display is exhibiting a green screen

          Unfortunately, monitors are not my forte.

          I had a similar issue not very long ago on a CRT monitor. What happened was I accidentally bent a pin in the VGA cable.

          I know that you have tried the monitor with another VGA cable, however it can't hurt to have a look.

          Maybe someone more knowledgeable will come long and help you some more.

            Comment

            • sofTest
              Badcaps Veteran
              • Aug 2008
              • 361
              #4
              Re: Display is exhibiting a green screen

              The cable is mentioned, but also check the connector on the monitor, and the soldering of the connector to the video board.
              ------------
              Be a mensch

                Comment

                • stephkre
                  Member
                  • Jul 2009
                  • 26
                  #5
                  Re: Display is exhibiting a green screen

                  Ok. So I used a good monitor that is the same make and model and replaced the video board on the defective one with the board from the new one and it works fine. Then I put the defective one in the good monitor and it displays green. Remind you I did swap vga cables so they are good. Therefore i narrowed it down to just the video board. If any one can help me I would appreciate it. Also what is the little silver looking box shown in the pictures. Thank you. It says on it 24.000H7C.
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                    • Wizard
                      Badcaps Legend
                      • Mar 2008
                      • 2296
                      #6
                      Re: Display is exhibiting a green screen

                      That's a quartz crystal. Resonates with a intergated circuitry internal to that microcontroller to get 24MHz which is divided down to different clocks and some of them outputs these to other chipsets.

                      Not same thing as quartz crystal OSCILLATOR. This has internal circuit and a crystal in a 4 pin package.

                      Cheers, Wizard

                        Comment

                        • stephkre
                          Member
                          • Jul 2009
                          • 26
                          #7
                          Re: Display is exhibiting a green screen

                          Is this a common problem in monitors or does it not happen that often to where I cannot find anything over this type of problem.

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