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    Panasonic tx-p50x60b 7 blinks

    Hi guys got this in today and it has 7 blinks, i checked over the sn board, there are no shorts on the fets or the big DAF304 diodes...
    Disconneted all cables to sn board, green lights flashes very quickly then goes to 6 blinks

    test point voltages are as follows

    TPNS1 = -232V THEN DROPS
    TPVAD = -232V THEN DROPS
    SRV VFO = -232V THEN DROPS
    SRV VF5V = -232V THEN DROPS
    SRV P15V = 15V THEN DROPS
    SRV VSUS = 184 THEN DROPS
    SRV LED LIGHTS BUT LOOKS DIM

    does this mean the sn board is shot ?

    regards Gary

    #2
    Re: Panasonic tx-p50x60b 7 blinks

    Test Vs Us input for S/C to Gnd on SN also do the same for SS if shorted, the boards are failed. 7 blinks normally is SN alot of the time.
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

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      #3
      Re: Panasonic tx-p50x60b 7 blinks

      Originally posted by ReeceyBurger123 View Post
      Test Vs Us input for S/C to Gnd on SN also do the same for SS if shorted, the boards are failed. 7 blinks normally is SN alot of the time.
      Reece you on about the (power plug pins to ground on the board) ? if you are theyre ok
      Last edited by comptek; 05-17-2016, 01:33 PM.

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        #4
        Re: Panasonic tx-p50x60b 7 blinks

        Yes yes
        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

        https://www.facebook.com/Telford-Tel...7894576335359/

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          #5
          Re: Panasonic tx-p50x60b 7 blinks

          Originally posted by ReeceyBurger123 View Post
          Yes yes
          theyre fine

          Comment


            #6
            Re: Panasonic tx-p50x60b 7 blinks

            Is that testing across the plug ?
            Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

            https://www.facebook.com/Telford-Tel...7894576335359/

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              #7
              Re: Panasonic tx-p50x60b 7 blinks

              Originally posted by ReeceyBurger123 View Post
              Is that testing across the plug ?
              looking at the white plug ground to chasis

              heatsink heatsink
              =============== ======================
              plug
              =======
              1 2 3 4

              pin 1 grnd 0 ohms
              pin 2] ==== 110k ohms
              pin 3] ==== 110k ohms
              pin 4 O/L

              Comment


                #8
                Re: Panasonic tx-p50x60b 7 blinks

                Ok so looks like nothing is S/C to Gnd then. Before it shuts off does the screen appear to glow at all in a dark room mate ?
                Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                https://www.facebook.com/Telford-Tel...7894576335359/

                Comment


                  #9
                  Re: Panasonic tx-p50x60b 7 blinks

                  Originally posted by ReeceyBurger123 View Post
                  Ok so looks like nothing is S/C to Gnd then. Before it shuts off does the screen appear to glow at all in a dark room mate ?
                  nope just rapid green then 7 blinks

                  Comment


                    #10
                    Re: Panasonic tx-p50x60b 7 blinks

                    Find TP, VFG....

                    Ohm out that to all the Buffer Socket Connections. I had one of these with a dead buffer-chip, doing the seven blinker shuffle!

                    Problem is--the Orrible black goo they use on the Buffer-chip pins is Very hard to remove--Unlike the earlier grey silicone, I buggered the board trying to remove the chip, ended up buying a replacement...
                    Last edited by Alastair E; 05-17-2016, 02:11 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!

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                      #11
                      Re: Panasonic tx-p50x60b 7 blinks

                      Originally posted by Alastair E View Post
                      Find TP, VFG....

                      Ohm out that to all the Buffer Socket Connections. I had one of these with a dead buffer-chip, doing the seven blinker shuffle!

                      Problem is--the Orrible black goo they use on the Buffer-chip pins is Very hard to remove--Unlike the earlier grey silicone, I buggered the board trying to remove the chip, ended up buying a replacement...
                      HA HA BINGO!! third buffer chip down short on buffer socket roughly in the middle of it Dam!!
                      but thanks its solved the problem thanks Alastair Mate

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                        #12
                        Re: Panasonic tx-p50x60b 7 blinks

                        Whooo, you replacing the Ic direct Gaz ?
                        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                        https://www.facebook.com/Telford-Tel...7894576335359/

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                          #13
                          Re: Panasonic tx-p50x60b 7 blinks

                          nah £9 get another board as Alistair said he screwed the board up so maybe the best option to get another baord

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                            #14
                            Re: Panasonic tx-p50x60b 7 blinks

                            Ok, also might be best to heatsink the Ic's on the replacement board to help prevent future issues.
                            Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                            https://www.facebook.com/Telford-Tel...7894576335359/

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                              #15
                              Re: Panasonic tx-p50x60b 7 blinks

                              Originally posted by ReeceyBurger123 View Post
                              Ok, also might be best to heatsink the Ic's on the replacement board to help prevent future issues.
                              yeah defo i have some old heatsinks around

                              Comment


                                #16
                                Re: Panasonic tx-p50x60b 7 blinks

                                £9 replacement sn board all up and running
                                Attached Files

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