RCA 46LA55R120Q no picture, sound and back-light work

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  • jackc413
    New Member
    • Mar 2014
    • 3
    • United States
    #1

    RCA 46LA55R120Q no picture, sound and back-light work

    i have a RCA 46" 1080p LCD tv model number 46LA55R120Q. The screen doesn't show anything but the sound works and the back-light seems to work. I checked the boards and there seem to be no apparent damage.

    i am having trouble pinpointing which component isn't functioning.

    thanks
    Tags: None
    • Caleb
      Smokin IC's
      • Feb 2013
      • 645
      • USA
      #2
      Re: RCA 46LA55R120Q no picture, sound and back-light work

      Since you have power backlight and sound your fault is most likely on the tcon. You can test to see if the fuse on the tcon is good and has about12 volts on both sides.
      Liberating magic smoke one part at a time

        Comment

        • jackc413
          New Member
          • Mar 2014
          • 3
          • United States
          #3
          Re: RCA 46LA55R120Q no picture, sound and back-light work

          would this be the fuse?
          Attached Files

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            • Caleb
              Smokin IC's
              • Feb 2013
              • 645
              • USA
              #4
              Re: RCA 46LA55R120Q no picture, sound and back-light work

              Yes indeed that is it
              Liberating magic smoke one part at a time

                Comment

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