Polaroid TDX-03211c Logo flashes, but no picture

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  • Paul678
    Badcaps Veteran
    • Nov 2011
    • 402
    #1

    Polaroid TDX-03211c Logo flashes, but no picture

    Got this one for free.

    When you turn it on, the red LED turns to solid blue, and
    you can hear the speakers click softly. Then the inverters
    turn on, and you briefly see the Polaroid logo flash on the
    screen for about 1/2 second.

    But then the lamps turn off, and there is nothing on the
    screen, but the LED remains solid blue.

    So it looks like everything is working, except maybe the
    +24V to the inverters gives out after 2 seconds?

    Or do you think this is a main board issue?

    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Polaroid TDX-03211c Logo flashes, but no picture

      How about pictures & a quick test of the +24V while it's running?
      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

        • Paul678
          Badcaps Veteran
          • Nov 2011
          • 402
          #3
          Re: Polaroid TDX-03211c Logo flashes, but no picture

          Ok, cracked it open, and found two bloated caps
          feeding the inverter transformers, 10uF, 450V.

          They both measured bad on my russian ESR meter.

          It's exactly the same caps that this guy replaced:

          https://www.youtube.com/watch?v=LqzNt70M8CY

          Off to the electronics surplus store....

          I'd be overjoyed to get an easy one this time!!!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Polaroid TDX-03211c Logo flashes, but no picture

              It is a very common defect with this chassis, you may have got lucky.
              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

                • Paul678
                  Badcaps Veteran
                  • Nov 2011
                  • 402
                  #5
                  Re: Polaroid TDX-03211c Logo flashes, but no picture

                  FUCK YEAH!!! THAT WAS IT!! HAHA!!!

                  About time I got an easy one!! haha!

                  Ok, I can eat my breakfast in peace now!!!

                  Now to make some $$$$$$$$!!!!!!!!!

                  HAHA!!!

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Polaroid TDX-03211c Logo flashes, but no picture

                      Enjoy.
                      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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