Panasonic TH-42PX60U Locks up

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  • cre8kos@insightbb.com
    New Member
    • Dec 2012
    • 6
    • USA

    #1

    Panasonic TH-42PX60U Locks up

    Plays fine for 5 to 15 minutes then picture and controls lock up. Cycle power comes back on fine for another 5 to 15 min. Any help on which board may be causing this problem?
  • efan
    Member
    • Sep 2012
    • 30
    • CANADA

    #2
    Re: Panasonic TH-42PX60U Locks up

    Did you check fans, there is feedback from fans to cut the power off.

    Comment

    • Toasty
      Badcaps Legend
      • Jul 2007
      • 4171

      #3
      Re: Panasonic TH-42PX60U Locks up

      Any power LED blinking? Does it lock up on just TV or any source video?

      As efan said, check the fans. They get clogged and this sounds like an overheat problem.

      Have the back off while testing? Direct a fan at the DG board area to keep cooling.

      Check power board voltages when normal and failed.

      Sounds like either the H board or (more likely) the DG board (MCU).

      T

      PS - Sudden problem or was there an "event" that could have caused this? Lightning storm or power surge?
      veritas odium parit

      Comment

      • cre8kos@insightbb.com
        New Member
        • Dec 2012
        • 6
        • USA

        #4
        Re: Panasonic TH-42PX60U Locks up

        No blinking. Steady on. No event. Just started last week. Some times the picture freezes and sometimes it goes to a multi colored screen. Remote and onboard controls inop. Cycle power and it's back to normal for a while. Will check fans and try other measures. Thanks.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Panasonic TH-42PX60U Locks up

          Reseat the LVDS cable... if you need help locating it post some pictures.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • cre8kos@insightbb.com
            New Member
            • Dec 2012
            • 6
            • USA

            #6
            Re: Panasonic TH-42PX60U Locks up

            I'll check and take pictures tomorrow. Thanks for your help.

            Comment

            • Toasty
              Badcaps Legend
              • Jul 2007
              • 4171

              #7
              Re: Panasonic TH-42PX60U Locks up

              >> Some times the picture freezes and sometimes it goes to a multi colored screen. <<

              That's the DG board for certain.

              T
              veritas odium parit

              Comment

              • cre8kos@insightbb.com
                New Member
                • Dec 2012
                • 6
                • USA

                #8
                Re: Panasonic TH-42PX60U Locks up

                I have pulled the DG board. I've located several on line. My question, is the suffix code important or will any of them work as long as they are the right part number?

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: Panasonic TH-42PX60U Locks up

                  If you can get one with a matching suffix, go with that. It can sometimes be important, but only Panasonic could confirm whether or not it prevents parts working together.
                  Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                  For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                  Comment

                  • Toasty
                    Badcaps Legend
                    • Jul 2007
                    • 4171

                    #10
                    Re: Panasonic TH-42PX60U Locks up

                    What is your original number?

                    Should be TNPA3903BBS or BBT. Tri-State Module has them for $31 with 6 mos. warranty.

                    http://www.tristatemodule.com/p-2321...h-42px60u.aspx

                    T
                    veritas odium parit

                    Comment

                    • cre8kos@insightbb.com
                      New Member
                      • Dec 2012
                      • 6
                      • USA

                      #11
                      Re: Panasonic TH-42PX60U Locks up

                      Thanks for all your help. It's on it's way.

                      Comment

                      • Toasty
                        Badcaps Legend
                        • Jul 2007
                        • 4171

                        #12
                        Re: Panasonic TH-42PX60U Locks up

                        Any news?
                        veritas odium parit

                        Comment

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