RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

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  • Michale32086
    New Member
    • Nov 2011
    • 1453
    • USA

    #21
    Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

    I replaced the Y-Main and the main power boards....

    I still get no picture, no light and just a couple pairs of clicks...

    I can get an X-Main board for around $35... By process of elimination, I am running out of boards to replace..

    What are the chances that it's a display issue???

    Comment

    • Alastair E
      Chief Womble
      • Mar 2013
      • 1963
      • U.K.

      #22
      Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

      Through all of this chopping/changing and getting nowhere,--Did you ever try running the set--With the Buffer-Boards disconnected, and everything else connected....?

      --First check I do with symptoms like that.....

      I'll bet a buffer chip is stuffed.....
      TELEFIX

      How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
      http://www.irf.com/technical-info/appnotes/an-1088.pdf
      PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

      Comment

      • Michale32086
        New Member
        • Nov 2011
        • 1453
        • USA

        #23
        Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

        I'll give that a shot.

        Thanx...

        Comment

        • Michale32086
          New Member
          • Nov 2011
          • 1453
          • USA

          #24
          Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

          OK, I completely removed the buffer board..

          No change in behavior. I still get the blue power light on and the click-click.. click-click.. click-click...

          Comment

          • Michale32086
            New Member
            • Nov 2011
            • 1453
            • USA

            #25
            Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

            While checking the prices for a replacement buffer board, I came across something interesting. The same boards that go in this 42PA30RQ are also for a VIORE set.. Just so happens I have a VIORE in my shop with a bad display..

            Anyways, turns out the boards are the same, but the VIORE is a 50" and the RCA is a 42..

            So, no luck there...

            If anyone needs boards from a 50" of this RCA type set, let me know..
            Attached Files

            Comment

            • Jimmy60
              Member
              • Jul 2014
              • 17
              • USA

              #26
              Re: RCA 42PA30RQ Playing The 'Let's Swap PCBs' Game

              Yes, I did finally get that RCA fixed. It turned out to be the Y-buffer and it was blowing the y-main and x-main every time I replaced one of them.
              It worked for over a year at Miss Lillie's house and went down again. Now I am back to square one. Replaced X and Y mains along with Y-buffer and still no life. I think I am getting bad boards? This is absolutely the most difficult TV I have ever worked on. I think it is finally going to the scrap pile unless one of you guys wants it!
              Last edited by Jimmy60; 09-06-2015, 12:50 PM.

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