Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

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  • ChaosEx
    Member
    • May 2016
    • 13
    • Germany
    #1

    Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

    Hi,

    I have to use one of those Rep Kits including D401, D421, IC502, Q531, Q421-423, Q401-403 because all of them were shorted.

    But I accidentally ripped away two solder-pads of IC502 while unsoldering.

    It is Pin 5 and 6 of IC "BD8693FVM" as you can see on the picture.
    (hope quality is good enough)


    I need someone to follow the trace with a multimeter on an good board so I can bridge directly from one of the IC arms to the first component in the trace.

    Would be wonderful if someone could use my picture and do some magic in paint to show the trace of Pin 5 and Pin 6.
    Tags: None
    • Alastair E
      Chief Womble
      • Mar 2013
      • 1963
      • U.K.
      #2
      Re: Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

      Hmm....

      Be aware--These are Multi-Layer boards, Three, Four or Five layers is not unusual--the traces could appear Anywhere on the board--Even under another chip or component, before connecting to its pins.

      Be easier to follow the schematic--IF you can find it. Look up the set in Toms-service-manuals....

      Good luck--I think you're gonna need it!
      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

        • tw2005
          Badcaps Legend
          • Oct 2011
          • 6458
          • Australia
          #3
          Re: Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

          Generally the ones that disappear first are the ones with no connection. I don't have access to my files but if you grab a service manual for any model with this board and check the schematic you can work it out for yourself.

          I had a quick look at a 55vt30 and 5,6 has no connection in that
          Last edited by tw2005; 06-08-2016, 05:18 PM.

            Comment

            • ChaosEx
              Member
              • May 2016
              • 13
              • Germany
              #4
              Re: Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

              @Alastair E

              Yes you are absolutely right. Maybe this is the reason why I felt something warm in my pants right after it happened


              @tw2005

              You are the men. Ping 5 and 6 are really not connected and therefore came off first. How many dark experiences you must have made to know this...

              And because of you I realized that there are schematics for the SC Board in the service manuals, I just overlooked them the first time

              Here the evidence:




              This is a very great place for people like us

              Thanks

                Comment

                • tw2005
                  Badcaps Legend
                  • Oct 2011
                  • 6458
                  • Australia
                  #5
                  Re: Panasonic Plasma SC Board TNPA5330 - accidentally ripped solder-pads away

                  If you don't have hot air, try flooding the pins both sides with solder and use 2 soldering irons to lift it off at the same time.

                  Those standalone pads lift real easy if too much heat too long.

                  Next time will be better I'm sure.

                    Comment

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