Panasonic TC-54PS14 7 clicks

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  • TC54PS14
    New Member
    • Nov 2014
    • 4
    • Canada
    #1

    Panasonic TC-54PS14 7 clicks

    Help all (1st time post):

    I've gained a little bit of knowledge on this TV from searching this forum and other internet sources, and think I've partially figured out that SU & SD boards are bad, SC probably is, but that A might also be faulty.

    Here's what I've done:
    1st,
    -isolated SU board, resistance was 1.08Mohm (spec 2.1)
    -isolated SD board, resistance was 1.06Mohm (spec 2.1)
    -isolated SC board, got no or variable readings for resistance
    -at power up, went to 7 click sequence
    2nd check,
    -put jumper on SC50 (stuck alligator clip on 2 pins)
    -removed ribbon at TP82
    -at power up, went to 8 click sequence
    -So now, does this mean the A board is bad also? I also tried this test w/o the jumper clip at SC50, but same result.

    Am I doing anything wrong with the test procedure? It appears I need SU, SD boards (some available used) and get the SC repaired. If I have to do A board also, it appears to be getting uneconomical to fix this TV.

    Oh, and I've only limited electronics experience, this TV and another are a buddies that I'm taking a flyer on fixing (we each keep one if they can be fixed).
    Thanks in advance,
    Fran K
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia
      #2
      Re: Panasonic TC-54PS14 7 clicks

      The ribbon would be known as SC20? yes? isolated sd/su (including screws), jumper SC50, Sc20 remains connected, power up.

      I'd expect 7 blinks still by the sounds of things

        Comment

        • TC54PS14
          New Member
          • Nov 2014
          • 4
          • Canada
          #3
          Re: Panasonic TC-54PS14 7 clicks

          Had to set this project aside for awhile, but yes the ribbon that was disconnected was at SC20.

          Doesn't seem worth the risk on replacement parts to try and fix this one.

          FK

            Comment

            • tw2005
              Badcaps Legend
              • Oct 2011
              • 6458
              • Australia
              #4
              Re: Panasonic TC-54PS14 7 clicks

              Originally posted by TC54PS14
              Had to set this project aside for awhile, but yes the ribbon that was disconnected was at SC20.

              Doesn't seem worth the risk on replacement parts to try and fix this one.

              FK
              If you can isolate and confirm SC is 7 blink then confirm sd/su are good,
              then about $100

              http://www.moduslinkptstvboards.com/txnsc1ecuu/

              or look for good used TNPA4844 and it should fix it unless the panel is cracked or shorted

                Comment

                • TC54PS14
                  New Member
                  • Nov 2014
                  • 4
                  • Canada
                  #5
                  Re: Panasonic TC-54PS14 7 clicks

                  But what about low resistance on sd/su boards?

                    Comment

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