Sony kdl-50w656a no picture

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  • andrews7523
    Senior Member
    • Apr 2015
    • 117
    • lancashire
    #1

    Sony kdl-50w656a no picture

    I have a SONY KDL-50W656A what i bought thinking might need a new tcon board as the tv lit up without picture but later realised this set didn't have a t-con board. I found a donor which was smashed so started off replacing the main board which had no effect. Im thinking that maybe this is the wrong main board as I've seen this happen before. A lot of tvs i buy come from repair centres and can be left with incorrect parts being fitted. Any ideas how to help
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    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Sony kdl-50w656a no picture

      Are you saying that the T-CON board is missing or the the LCD panel has an integrated T-CON? But no matter what kind, it still need switched the switched 12VDC to run the T-CON.
      Last edited by budm; 02-01-2016, 04:51 PM. Reason: 1
      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

        • andrews7523
          Senior Member
          • Apr 2015
          • 117
          • lancashire
          #3
          Re: Sony kdl-50w656a no picture

          integrated tcon. i know the main board works as I've tried it in the donor which has a damaged screen

            Comment

            • fliperek
              New Member
              • Jan 2013
              • 2
              • Poland
              #4
              Re: Sony kdl-50w656a no picture

              hi,

              I have the same problem with my tv the same model, sound works, but no picture, backlight also works, did you solve the problem? what was the reason? which parts did you replace or repair?

                Comment

                • andrews7523
                  Senior Member
                  • Apr 2015
                  • 117
                  • lancashire
                  #5
                  Re: Sony kdl-50w656a no picture

                  common fault rubbish tvs bin it

                    Comment

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