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    Earth loop problem ?

    I got an Asus VW222U, according to Asus forums it has an earth loop problem.

    http://vip.asus.com/forum/view.aspx?...Language=en-us

    http://vip.asus.com/forum/view.aspx?...age=1&count=19

    1.open monitor (will void warrenty)
    2.unplug all the the cables going to the power supply and dvi port assembly, undo two screws pull down and out you wil now be looking behind the dvi port and be holding a metal module that contails power supply and dvi- and vga port.

    3.you will notice a piece of brass foil joining the earths on your dvi and vga cable this is the problem creating an "earth loop" as both vga and dvi ports are earthed to the metal casing this extra earth is causing the problem introducing noise.

    3.carefully unwrap the brass foil from the two cables and seperate, insualte cables with electrical tape. (wrap around each one seperately they should now be indiivdual cables)

    4.you will notice a silver spring type peice of metal on the assembly that pushes against the
    main body of the unit when re-assembled. scratch the metal with a screwdriver where this peice pushes so you get a good connection when you reassemble it, do not touch as finger grease could screw up the connection. (this step is not vital just a good thing to do why your in there to make sure the the unit is properly earthed)

    4.re-assemble
    Added a few pictures for you to see.

    Is this considered a smart move or should I skip it ?
    Attached Files

    #2
    Re: Earth loop problem ?

    were you having trouble with noise before?

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      #3
      Re: Earth loop problem ?

      I found this monitor among garbage at work, it was completely dead but all it took was to resolder the powersupply board.

      It is working right now but since I now have it apart I was wondering if this mod would be helpful and safe to do.

      Comment


        #4
        Re: Earth loop problem ?

        I would test it first if no problems then leave it alone.

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