Pioneer PDP 503U warm up

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  • dang10010
    New Member
    • Nov 2012
    • 5
    • USA
    #1

    Pioneer PDP 503U warm up

    Hello all. I have an old Pioneer 50 plasma PDP 503U TV and a PDP R03U media receiver. It's been through a lot. I got it for free, replaced the power switch thing and it's even been through a house fire and lived (it' slightly melted on the top and permanently discolored).
    Within the past year weird squiggly lines will appear when cold but eventually go away after it warms up. The TV will also occasionally flash black then kick back on and sometimes it gets stuck like it zoomed in on one corner of the broadcast. It seems to not be affected as much by dark screens. If I play something in SD the lines return, especially if I stretch it to widescreen. If I box it it's still watchable but the lines do show up occasionally.
    I love my TV and can't imagine getting a new one, this picture quality is awesome.
    Here are some pictures taken as it warms up, its worst in the morning completely cold.
    And, anywhere to get a remote for this thing? I still have mine but it won't work.
    Attached Files
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    • drpj23
      Badcaps Veteran
      • May 2012
      • 528
      • USA
      #2
      Re: Pioneer PDP 503U warm up

      How do the menus look when it is doing this?

      What is the power switch thing....literally a switch or the power supply?

      You can open the tv back up and start heating boards (with a hair dryer) and see what makes the disfiguring go away faster.

      Pictures of the boards and layout will help too

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK
          #3
          Re: Pioneer PDP 503U warm up

          I have a Pioneer PDP-503MXE which is dead (bad plasma panel), so if you need parts, let me know. They may be compatible. Sadly, I don't know where to find a remote either.
          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

            • dang10010
              New Member
              • Nov 2012
              • 5
              • USA
              #4
              Re: Pioneer PDP 503U warm up

              The power switch was the board that kept randomly turning off the TV when I first got it. You could here it click and somehow I found one online. It is actually connected to the power button on the media receiver.
              When you say menus, you mean the TV menus? If so I don't have access to anything but the input button part of the menu.
              When I hit the directv menu most of the lines go away because it is dark in color.
              I will try the thing with a hair dryer and see if that helps.
              Spare parts may eventually be needed, I will let you know.

                Comment

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