sony KDL-52XBR5 parralel vertical lines

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  • martino
    Not so "senior"
    • Aug 2013
    • 997
    • canada
    #1

    sony KDL-52XBR5 parralel vertical lines

    Past owner said that all of a certain the red lines appeared.
    On all inputs they are red,but on pc input the turn a dark grey.
    Not sensitive to wiggling the lvds cables

    edit:I put hdmi input on game/text mode " on" ,same as pc input was and now on input hdmi 3 lines are grey also!!!!(pic 5)

    Any idea at first glance?
    Attached Files
    Last edited by martino; 03-03-2016, 06:09 PM.
    Proud owner of dozens of broken TV's and many,many,many boards.


    Our website and passion:http://hollenhundshepherds.com/
    Tags: None
    • Sevenqi
      Badcaps Veteran
      • Jul 2011
      • 292
      #2
      Re: sony KDL-52XBR5 parralel vertical lines

      This is most likely the UB1(UB2?) Board between t-con and mainboard, try to replace that board to see..

        Comment

        • martino
          Not so "senior"
          • Aug 2013
          • 997
          • canada
          #3
          Re: sony KDL-52XBR5 parralel vertical lines

          Ok,anything I can measure/try on that board or just blindly replace?
          Proud owner of dozens of broken TV's and many,many,many boards.


          Our website and passion:http://hollenhundshepherds.com/

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: sony KDL-52XBR5 parralel vertical lines

              Can we see the whole back side of the TV so we can see all the boards and how they are connected together.
              He is referring to the FRC (Frame Rate Converter) board which is connected between the T-CON and the Main board.
              Sony A-1257-224-A (1-873-860-11, (172868211)) UB1 Board
              http://www.shopjimmy.com/sony-a-1257...-ub1-board.htm
              You can try re-seating the connectors, heating and cooling the board to see if it has any affect.
              There are bunch of SMD lytics caps on that board.
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

              Voltage Regulator (LDO) testing:
              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

              Tear down pictures : Hit the ">" Show Albums and stories" on the left side
              http://s807.photobucket.com/user/budm/library/

              TV Factory reset codes listing:
              http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • martino
                  Not so "senior"
                  • Aug 2013
                  • 997
                  • canada
                  #5
                  Re: sony KDL-52XBR5 parralel vertical lines

                  We have success,took the shield off UB1 board,turned tv on and started cold spraying the little caps etc on the board with no success,till I hit the big BGA chip in the middle=see pic#2,a wonderful a clear picture!
                  Till that chip warmed up again,lol

                  So I ordered a used board off fleebay,$53 canadian dollars.

                  I will try and reflow that chip,but so far I never had reliable luck doing that.
                  Attached Files
                  Proud owner of dozens of broken TV's and many,many,many boards.


                  Our website and passion:http://hollenhundshepherds.com/

                    Comment

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