Wacom Cintiq 21UX Garbage Everything

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  • pentium
    Badcaps Legend
    • Mar 2006
    • 2778
    • Canada

    #1

    Wacom Cintiq 21UX Garbage Everything

    I don't remember if I discussed this before.

    When I got my cintiq two years ago it was fine aside from several lines of patterened horizontal pixels that were constantly garbled. Depending on the resolution the lines would get larger or smaller but they were always the same lines. The OSD was at the time immune to this.


    As time progressed I gained more and more lines and soon I was seeing corruption in the OSD menus as well.
    Finally it reached a point where after being pulled form storage it was unusable. The OSD was completely gone and the screen was useless.



    I opened the unit up and found a couple of visually good KZE''s and an arrangement where DVI came into the system on one board, onto a paddleboard and then out to another board which was presumably the LCD controller and then out on four ribbon cables tot he screen.



    Reseating on the ribbon cables did nothing. Pressing on the three major IC's did not change much either. Contact cleaner was equally a no go. The last thing I can think of is that even though it was not seeing use the LCD itself has died. Can anyone confirm this possibility?
    Find Nedry!


    Check the Vending machines!!

    <----Computer says I need more beer.
  • ben7
    Capaholic
    • Jan 2011
    • 4059
    • USA

    #2
    Re: Wacom Cintiq 21UX Garbage Everything

    Its possible that the power supply could be producing all that noise. I still would check the KZE with an ESR meter!...

    P.S. Have you tried pressing [gently] on the spots where the flat ribbon cables go to the screen?

    P.S.2. I'm surprised that those hermei caps on the backlight inverter haven't blown yet!
    Muh-soggy-knee

    Comment

    • pentium
      Badcaps Legend
      • Mar 2006
      • 2778
      • Canada

      #3
      Re: Wacom Cintiq 21UX Garbage Everything

      The power supply is a bit of a hack as-is. I could not source the proper AC adapter so I reverse engineered a new one from the power brick for a Symbol cradle charge station. It outputs 12V 9A which is perfect and it even has a fan in it so it won't overheat.
      As for checking ripple, even though I've owned a scope for years I still don't know how to check ripple so enlighten me here.
      Pressing on the ribbon cables themselves do nothing. I can't get access to the rest of the cable as it's buried within the LCD assembly itself.

      I can't check ESR at all. The best I can do is replace caps and hope things work.
      Find Nedry!


      Check the Vending machines!!

      <----Computer says I need more beer.

      Comment

      • Th3_uN1Qu3
        Believe in
        • Jul 2010
        • 6031
        • Romania

        #4
        Re: Wacom Cintiq 21UX Garbage Everything

        That's not a panel failure, it's bad data being sent to it. Try reflowing that Genesis processor on the logic board, and the RAM next to it.
        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

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Wacom Cintiq 21UX Garbage Everything

          Could just be bad ram. I'd also check the regulators are giving a stable output
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • kc8adu
            Super Moderator
            • Nov 2003
            • 8832
            • U.S.A!

            #6
            Re: Wacom Cintiq 21UX Garbage Everything

            yes bad ram or scaler.

            Comment

            • pentium
              Badcaps Legend
              • Mar 2006
              • 2778
              • Canada

              #7
              Re: Wacom Cintiq 21UX Garbage Everything

              Aside from a heat gun, what else would you recommend to at least try and reflow the chip? The samsung memory I can at least sourca a replacement for but I have never attempted a BGA repalcement.
              Find Nedry!


              Check the Vending machines!!

              <----Computer says I need more beer.

              Comment

              • Lumberjack777
                Badcaps Veteran
                • Dec 2010
                • 464

                #8
                Re: Wacom Cintiq 21UX Garbage Everything

                Originally posted by kc8adu
                yes bad ram or scaler.
                I agree. Whenever I got that blockiness and it was uniform it was the T-con (scaler board)
                I attached a picture of a Dell that worked with a new T-Con board. See if that looks similar.
                Attached Files

                Comment

                • Warlok
                  New Member
                  • Aug 2013
                  • 1
                  • USA

                  #9
                  Re: Wacom Cintiq 21UX Garbage Everything

                  I'm having a problem with the power itself and it most likely is that something came loose. How did you open the back of yours? I took out all the screws, but the cover won't budge.

                  Thanx,
                  Kirk

                  Comment

                  • chicago77
                    Member
                    • Oct 2014
                    • 15
                    • USA

                    #10
                    Re: Wacom Cintiq 21UX Garbage Everything

                    Originally posted by Warlok
                    I'm having a problem with the power itself and it most likely is that something came loose. How did you open the back of yours? I took out all the screws, but the cover won't budge.

                    Thanx,
                    Kirk
                    I am also having power issue with mine. It powers off randomly and then will come back on for a period of time. I seem to be getting a good 12 volts to the main board when off, but that drops to 11 and change when its on.

                    Were you able to resolve this?

                    Comment

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