Telefunken D32F289M4CWI no picture Only the sound

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  • samtron786
    Senior Member
    • Aug 2016
    • 154
    • germany

    #1

    Telefunken D32F289M4CWI no picture Only the sound

    The problem with the Telefunken LCD TV "D32F289M4CWI" is that since switching from one program to the other, the picture is gone and only the sound can be heard (screen remains black).

    The TV is about 2 years old.
    Would still be grateful for help
    many thanks
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12086
    • U.S.

    #2
    Re: Telefunken D32F289M4CWI no picture Only the sound

    (screen remains black) If you mean there's no backlight, check the screen by shining a flashlight on it, maybe at an angle, see if there's a picture or hit menu see if there's a display at all with flashlight.
    Last edited by nomoresonys; 04-08-2021, 12:30 PM.

    Comment

    • samtron786
      Senior Member
      • Aug 2016
      • 154
      • germany

      #3
      Re: Telefunken D32F289M4CWI no picture Only the sound

      Yes I can take a picture with low light

      Comment

      • samtron786
        Senior Member
        • Aug 2016
        • 154
        • germany

        #4
        Re: Telefunken D32F289M4CWI no picture Only the sound

        I tested the LED again, they are all fine

        Comment

        • nomoresonys
          Badcaps Legend
          • Jan 2013
          • 12086
          • U.S.

          #5
          Re: Telefunken D32F289M4CWI no picture Only the sound

          Read and comprehend/translate post #2.

          Comment

          • samtron786
            Senior Member
            • Aug 2016
            • 154
            • germany

            #6
            Re: Telefunken D32F289M4CWI no picture Only the sound

            Yes I only have sound, no picture and no obstruction lighting

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12086
              • U.S.

              #7
              Re: Telefunken D32F289M4CWI no picture Only the sound

              Check the fuse on the tcon board, meter 20 vdc black - probe on metal chassis ground, red + probe on each side of fuse see if it's about 12 volts on each side.

              Comment

              • samtron786
                Senior Member
                • Aug 2016
                • 154
                • germany

                #8
                Re: Telefunken D32F289M4CWI no picture Only the sound

                Yes I have 12.20V in both sides
                a question, is there a list of VAVDD how much current has ??
                the diode has 3.33V
                many thanks

                Comment

                • nomoresonys
                  Badcaps Legend
                  • Jan 2013
                  • 12086
                  • U.S.

                  #9
                  Re: Telefunken D32F289M4CWI no picture Only the sound

                  Some simple voltage testing there: https://www.youtube.com/watch?v=t11FEuu1oWU

                  Comment

                  • samtron786
                    Senior Member
                    • Aug 2016
                    • 154
                    • germany

                    #10
                    Re: Telefunken D32F289M4CWI no picture Only the sound

                    gives wiring diagram of this TV ??
                    or do I have to look for wiring diagram from T-Con?

                    Comment

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