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Panasonic Plasma has 7 sos flashes and went pop

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    Panasonic Plasma has 7 sos flashes and went pop

    hi all, ive been looking around here and think this is the place to be for the vast amounts of knowledge kindly available.

    i own a panasonic plasma tx p50st31b bought at least four years ago with a date stamp of 03/2011 inside the rear panel.

    it has been very reliable uptill now :-(

    im currently getting 7 red flashes off the sos. i disconnected the two connectors for the sc panel and i was presented with 8 red flashes, i then re attached the two connectors to receive 7 flashes once more.

    the tv died during using kodi via pc hdmi etc. ive allways used the side port for some reason. only thing slightly different was when i moved my computer the power lead to my pc became loose and reset my pc, obviously picture went from that source. i also inadvertantly cut the power to the tv without pressing standby if that could be anything to do with it.
    all was well for an hour then a bang was heard and it went off. it was dark and dont remember doing it but i have also noticed an impact type crack on my lower rh side of the panel, directly behind the power connector fot the ac board. i moved it onto the table this morning upright and im always usually very careful with it.

    can components breaking cause the screen to break or is this likely human error? its hard to say if the picture will be ok with the crack but when i disconnected the sc board i did think i noticed a small 2" square of light around where the crack impact area is.

    im kean to try to repair it as its been a great telly with a cracking picture. but if the panel is likely to be defective then its just more £££'s

    any suggestions kindly received
    rich

    #2
    Re: Panasonic Plasma has 7 sos flashes and went pop

    If the panel itself has any cracks--Thats more or less it for the set, unless you can find a similar model with a blown SC board--But I suspect your SC may be buggered too....

    New panel would be silly money, although have seen on occasion new panels on ebay.....

    If a set is on when the panel is cracked, its most likely the buffers/SC will suffer too
    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


      #3
      Re: Panasonic Plasma has 7 sos flashes and went pop

      thanks alastair, i still cant believe its cracked, came down this morning to take it all appart and noticed so it does kinda make it bin fodder, shame as chances of getting a panel cheap and remedying any other defects is unlikely i guess. can screens break themselves? i know it sounds ridiculous but ive always been careful

      Comment


        #4
        Re: Panasonic Plasma has 7 sos flashes and went pop

        Yup--rare though it is, panels can just crack on their own.
        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


          #5
          Re: Panasonic Plasma has 7 sos flashes and went pop

          i might store it to one side for now incase a panel comes up, do any other panasonic panels fit do you know ?

          Comment


            #6
            Re: Panasonic Plasma has 7 sos flashes and went pop

            Guess this would fit--


            http://www.ebay.co.uk/itm/TV-Part-Sc...kAAOSw7FRWZWpY

            What I dont like about it is the guy has taken the bottom address-boards off it and he says he took it ut of a fully working set...

            Who breaks a set he could sell for maybe 200+ to sell its screen for less than a ton, the SC board for a bit less and have all the trouble of shipping the stuff.....
            Last edited by Alastair E; 01-03-2016, 05:32 PM.
            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


              #7
              Re: Panasonic Plasma has 7 sos flashes and went pop

              nice find, i couldnt find one all day. does sounds odd for like you say a lot more hassle.
              i found a Tx-p50g10b aswell complete set with seven flashing lights for £70 an hours drive away, wonder if anyparts would match. ive tried the link to the service books but doesnt cover my model

              Comment


                #8
                Re: Panasonic Plasma has 7 sos flashes and went pop

                Well--The ebay listing has the Panel type Number in it, all you need to do is find what panel the 50G10 uses--see if its the same type.

                G10 is a more basic model, but could use same basic chassis and PDP...
                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


                  #9
                  Re: Panasonic Plasma has 7 sos flashes and went pop

                  Are you sure you didn't bump into anything when you moved the tv to the table? I've never heard of a plasma that cracks on its own.

                  Its a shame , you can always sell the other boards. There is a way to test the buffer boards if they are ok. Hope you will find a similar tv/donor tv.
                  I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                  Comment


                    #10
                    Re: Panasonic Plasma has 7 sos flashes and went pop

                    Samsungs have been known to crack on their own, prolly because the steel sheet behind was made ever (cheaper) thinner.....
                    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


                      #11
                      Re: Panasonic Plasma has 7 sos flashes and went pop

                      Hmm ok but Panasonics are build very well. It will only crack when you bump the tv into a wall etc. ( in my opinion ) .
                      I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                      Comment


                        #12
                        Re: Panasonic Plasma has 7 sos flashes and went pop

                        i was wearing a coat with wooden ties to fasten it, wonder if screens rested on one, all i can think of.
                        its a bit of a dilemma really, i know tv's arnt expensive second hand and could probable get a near identical tv for £250, which will be worn and could break anytime.
                        on the other hand ive still got alot of tv left in my panny so to speak, might be better replacing the screen next month if poss and maybe picking up some cheap replacement boards as a reserve.

                        Comment


                          #13
                          Re: Panasonic Plasma has 7 sos flashes and went pop

                          i would like to maybe do some testing of the sc board etc and buffers as mentioned, i work with mains voltage as a sparky and do have an interest in electronics but lack majorly in knowledge

                          Comment

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