Panasonic TX-P37X20B

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  • delphiplasma
    Member
    • Mar 2016
    • 23
    • UK

    #21
    Re: Panasonic TX-P37X20B

    Okay...with both SC and SS boards disconnected I get seven flashes. I guess both SC and SC boards are faulty, as cannot get 7 flashes with each board independently connected.

    Comment

    • delphiplasma
      Member
      • Mar 2016
      • 23
      • UK

      #22
      Re: Panasonic TX-P37X20B

      So...I have 2 x boards (SC&SS) ordered from E-bay at a good price. Let's hope they aren't duff like the A board I purchased off E-bay.

      Think I will compare the bad board and good board 'in circuit' resistance of the devices and report back here with them, as it would probably help to know the 'In-circuit' resistances. It's a pain having to de-solder and re-solder components, putting them at further risk.

      Comment

      • delphiplasma
        Member
        • Mar 2016
        • 23
        • UK

        #23
        Re: Panasonic TX-P37X20B

        So, got the replacement SS and SC boards and the TV is now working. I have the original A board fault. Looking at the A board that caused the catastrophe the number is tnph0829 2A whereas the one in the set is the same except for the suffix 1A and a square heatsink. Is there any significance with that? As the A board is hard to find would I be able to use a board from another model set or from the 42/50 model?
        Also, just to let you know there will probably be an SS board for sale soon on ebay for rebuild purposes. I don't think I will list the SC board, as I had modified that board to improve black level.
        I will list the SS board once I compare the semiconductor resistances.

        Comment

        • delphiplasma
          Member
          • Mar 2016
          • 23
          • UK

          #24
          Re: Panasonic TX-P37X20B

          A quick message to say I purchased a new A board, which fixed the original fault. Thanks so much for the help.

          Comment

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