Samsung LN-t4069f Picture problems

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  • MrMack
    New Member
    • Jan 2014
    • 2
    • USA
    #1

    Samsung LN-t4069f Picture problems

    Hi. Hopefully you guys can direct me to the right area.
    My Samsung tv experienced the faulty cap issue. The picture and everything worked great other than the on/off symptoms.
    I went and and replaced all the caps including the 450wv on the board.
    Now the tv comes on instantly but the picture is a mess. i tried unplugging the ribbons from the tcon and back in but to no avail.....any suggestions?
    Could it be a tcon board issue?

    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung LN-t4069f Picture problems

      I would say possibly panel is bad, although it also looks like VGL circuit fault on t-con board.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • MrMack
          New Member
          • Jan 2014
          • 2
          • USA
          #3
          Re: Samsung LN-t4069f Picture problems

          Thanks I will pull out the voltmeter and check it out.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Samsung LN-t4069f Picture problems

              To check VGL (also called VOFF/VOFFE/TFT_OFF) you can check the test point on t-con, should be around -5V to -10V relative to chassis.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

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