Polaroid tda-03211c can't change brightness, no digital channels

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  • Eel_dahc
    Member
    • Apr 2017
    • 18
    • USA
    #1

    Polaroid tda-03211c can't change brightness, no digital channels

    I was given this TV. It had bad 10uf 450v caps, bad mosfets near those caps and blown fuse by the very large cap.

    All the other caps seem OK.

    Replaced bad parts that i found and TV works. However the brightness does not change when trying to adjust it in the menu. The picture looks good. Its not over bright or washed out. Just tried to change settings and nothing worked. It also will not find any digital channels when scanning.

    Could still be a power problem or main board problem?

    Has anyone had this problem? TV has sat for days unplugged and still the same. Also set to defaults.
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Polaroid tda-03211c can't change brightness, no digital channels

      I would check mainboard voltages
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • Eel_dahc
          Member
          • Apr 2017
          • 18
          • USA
          #3
          Re: Polaroid tda-03211c can't change brightness, no digital channels

          Originally posted by dskall
          I would check mainboard voltages
          Thanks

            Comment

            • steves7839
              Badcaps Veteran
              • Nov 2014
              • 200
              • USA
              #4
              Re: Polaroid tda-03211c can't change brightness, no digital channels

              Originally posted by Eel_dahc
              It also will not find any digital channels when scanning.
              What is the panel ID number? i have this symptom on a Sony TV (KDL-40V2500) with a Samsung LTY400HS-LH3 panel.
              Have you made progress troubleshooting?
              Attached Files

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