Tape mask on samsung RU7100

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  • nubinator
    Member
    • Jan 2012
    • 37

    #1

    Tape mask on samsung RU7100

    I got boot looping 65RU7100 and did tape mask and got image back. I narrowed down the problem to 1 pin it was pin 16 on left side which is CKVB1 so I masked that pin as well as CKV1 cause I read should do them in pairs. Image is pretty good but I get horizontal scan lines on bad side of panel, any way to fix this? When I was experiementing with blocking CKV pins I noticed the more I blocked the more color loss I got on bad side of panel
  • nubinator
    Member
    • Jan 2012
    • 37

    #2
    oh I found theres a short between CKV1 & CKVB1 , I think that is internal panel issue so never going to fix that but I then saw "short killer" videos on youtube for this very issue haha https://www.youtube.com/watch?v=l5ti8vp9VUM

    Comment

    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12132
      • U.S.

      #3
      Not sure if it applies here but I had those exact lines with an old tv that had a bad tcon board, in my case it had a stand alone tcon board.

      Comment

      • nomoresonys
        Badcaps Legend
        • Jan 2013
        • 12132
        • U.S.

        #4
        Interesting video, too bad about that line tho.

        Comment

        • nubinator
          Member
          • Jan 2012
          • 37

          #5
          https://www.youtube.com/watch?v=eipbyzi_a3I
          I followed this vid and got my best result with no lines. Key is to to short all the clock lines together after masking them, no lines after doing that.
          I shorted them at the diode packs near where it enters panel.
          Have great image now just slight color fade on bad side since one side is doing all the work I guess.

          Comment

          • Aliencomputres
            Badcaps Veteran
            • Aug 2019
            • 201
            • România

            #6
            show us how/where you put the masking tape.

            Comment

            • nubinator
              Member
              • Jan 2012
              • 37

              #7
              Well I taped 10 pins using the service manual for a similar model which also had the CN1300 & CN1301 connectors. My bad side was on the CN1300 so I taped pins 10 to 19 which are the clock lines and VGL,VGH
              Attached Files

              Comment

              • Aliencomputres
                Badcaps Veteran
                • Aug 2019
                • 201
                • România

                #8
                Originally posted by nubinator
                Well I taped 10 pins using the service manual for a similar model which also had the CN1300 & CN1301 connectors. My bad side was on the CN1300 so I taped pins 10 to 19 which are the clock lines and VGL,VGH
                thx

                Comment

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