Philips 42PF5331/10 Plasma stuck looping test pattern

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  • Chodax
    New Member
    • Jan 2011
    • 2
    #1

    Philips 42PF5331/10 Plasma stuck looping test pattern

    Hello all, first post and sorry if am posting a question that has already been answered but search turned up nothing. Basically my mother has the above plasma TV and it has worked fine for 3 years or so but a couple of days ago she turned it on and it started cycling through red green blue screens, then a crosshatch screen and finally a test card screen. The screen itself seems fine, the red green blue screens are solid with no errors and good strong colour, crosshatch is a bit messed up with a bit of flickering but the test card is spot on as well.

    Not knowing much about plasma technology I am at a bit of a loss but the screen itself seems fine so I am suspecting a dodgy controller board of some kind but have no idea where to begin. Haven't fixed a plama before but I have done some board level mods on old PC motherboards many moons ago so I am willing to have a dabble (taking full precautions of course), just need some advice and pointing in the right direction if possible.

    Many thanks.
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Philips 42PF5331/10 Plasma stuck looping test pattern

      Originally posted by Chodax
      just need some advice and pointing in the right direction if possible.
      http://elektrotanya.com/

      has service manuals for many TVs. Try looking there first.
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        Comment

        • Chodax
          New Member
          • Jan 2011
          • 2
          #3
          Re: Philips 42PF5331/10 Plasma stuck looping test pattern

          Ok thanks bud, grabbed a service manual and will try all the obvious stuff like service mode and reseating all connectors first.

            Comment

            • PlainBill
              Badcaps Legend
              • Feb 2009
              • 7034
              • USA
              #4
              Re: Philips 42PF5331/10 Plasma stuck looping test pattern

              Originally posted by Chodax
              Ok thanks bud, grabbed a service manual and will try all the obvious stuff like service mode and reseating all connectors first.
              Quick and easy test. Pull the LVDS cable that links the Small Signal Board (the one with all the inputs) to the Main Control Board (behind the SSB). The Misc Main Board often has a test mode that will do what you are seeing. It could also be a test mode on the main board, but usually they exit test mode if power is turned off.

              PlainBill
              For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

              Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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