le40r87db screen but no picture

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  • wreksta
    Badcaps Veteran
    • Aug 2013
    • 508
    • england
    #1

    le40r87db screen but no picture

    hi all got a Samsung in it was a clicker so replaced both the psu and mainboard
    even tried a tcon board in it the same one lads
    but still no picture screen lights up no menu no nothing

    could this still be a powedr issue will do usual checks soon just throwing this one out there see if anyone has any ideas
    Tags: None
    • wreksta
      Badcaps Veteran
      • Aug 2013
      • 508
      • england
      #2
      Re: le40r87db screen but no picture

      Any help here this one got me head battered just come across another thread simliar problem going to do what tom says and test the components on lower side of both the t-cons

      i just replaced main and psu

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: le40r87db screen but no picture

          Check the DC voltage on both ends of the fuse on the T-CON with ref to Chassis ground?
          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

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