vertical lines on screen

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  • ryn0909
    Professor X
    • Apr 2011
    • 122
    • USA
    #1

    vertical lines on screen

    Hi, i have a samsung sm-t217s galaxy tablet. after having replaced the digitizer, lcd screen and the ribbon cable (that attaches the mainboard to the lcd screen) i now have vertical lines on the display after power up. the tablet is fully functional but the screen flickers a bit with vertical lines on the screen. attached are 2 pics of the display. any help is greatly appreciated. thank you
    Attached Files
    Tags: None
    • jasko_jacker
      Badcaps Legend
      • Oct 2014
      • 1137
      • italy
      #2
      Re: vertical lines on screen

      Check with a lens the lcd flat cable , sometimes not fit well.
      Another frequently issue is a very small crack on the lcd border

        Comment

        • ryn0909
          Professor X
          • Apr 2011
          • 122
          • USA
          #3
          Re: vertical lines on screen

          ok i have checked the flat cable several times. i have re-seated the cable each time and it seems to be seated properly. there appears to be no damage to it. the lcd screen has no cracks on it. so the issue is something to do with the lcd screen or the ribbon cable?? its possible that the lcd is defective from person i bought the screen from.

            Comment

            • jasko_jacker
              Badcaps Legend
              • Oct 2014
              • 1137
              • italy
              #4
              Re: vertical lines on screen

              This type of lcd is very sensitive to shock when it's out of its cover but if you do not have another lcd cable the doubt remains , if you have so much patience you can test it with a multimeter. There is a cable connector on lcd side ?

                Comment

                • ryn0909
                  Professor X
                  • Apr 2011
                  • 122
                  • USA
                  #5
                  Re: vertical lines on screen

                  yes but it is very small connector, rectangle shaped. i dont have probes that size for my multimeter

                    Comment

                    • ktmmotocross
                      Boardkiller
                      • Feb 2014
                      • 3553
                      • slovakia
                      #6
                      Re: vertical lines on screen

                      bad from new or just cracked LCD. u cannot repair it

                        Comment

                        • ryn0909
                          Professor X
                          • Apr 2011
                          • 122
                          • USA
                          #7
                          Re: vertical lines on screen

                          well i have another LCD screen and cable on the way. So when i get it, i will replace one of them at a time to pinpoint the problematic component. then i will report back, my findings. thanx for the assistance

                            Comment

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