Panasonic TH-37PX80EA thunder lightning

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  • rtstorm
    Badcaps Veteran
    • Feb 2012
    • 971
    • Croatia

    #1

    Panasonic TH-37PX80EA thunder lightning

    Hello, i got thin Panasonic plasma with thunder lightning hit. TV wont start, it wont show any sign of life. I check and power do not came to the bridge rectifier. I do not hear reley click.

    All fuse are ok, and i have 5V on pasive coil (i tink this is stand by)
    Attached Files
    ...the quieter you become the more you are able to hear...
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 31003
    • Albion

    #2
    Re: Panasonic TH-37PX80EA thunder lightning

    direct hit, or nearby hit?

    and get a schematic for the psu - your probably going to need it.

    Comment

    • rtstorm
      Badcaps Veteran
      • Feb 2012
      • 971
      • Croatia

      #3
      Re: Panasonic TH-37PX80EA thunder lightning

      Nearby hit, i am searching for schematic.
      ...the quieter you become the more you are able to hear...

      Comment

      • tw2005
        Badcaps Legend
        • Oct 2011
        • 6458
        • Australia

        #4
        Re: Panasonic TH-37PX80EA thunder lightning

        5v standby, no relay clicks,

        Is the standby LED lit?

        No blown fuses

        I say most likely A-board

        You won't see voltage at the bridge unless those relays latch and it's the A-board that sends that signal.
        Anything else die that was connected to the TV?
        Attached Files
        Last edited by tw2005; 08-05-2015, 03:34 AM.

        Comment

        • rtstorm
          Badcaps Veteran
          • Feb 2012
          • 971
          • Croatia

          #5
          Re: Panasonic TH-37PX80EA thunder lightning

          No standby LED. Yes my friend watch movie on TV that was connected with PC via HDMI. Lightning hit 20m from his house. Modem died, PC die and TV

          I think lightning enter the PC over LAN cable
          ...the quieter you become the more you are able to hear...

          Comment

          • Moreno83
            Badcaps Legend
            • Jun 2014
            • 2008
            • The Netherlands

            #6
            Re: Panasonic TH-37PX80EA thunder lightning

            The tv's that i repaired with lightning strikes were all mainboard repair. ( No led / completely dead ).
            I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

            Comment

            • tw2005
              Badcaps Legend
              • Oct 2011
              • 6458
              • Australia

              #7
              Re: Panasonic TH-37PX80EA thunder lightning

              Originally posted by rtstorm
              No standby LED. Yes my friend watch movie on TV that was connected with PC via HDMI. Lightning hit 20m from his house. Modem died, PC die and TV

              I think lightning enter the PC over LAN cable
              I think you have your answer then. I had a close strike probably as close as yours and it went through a lot of things.

              Antenna amp died, the set top box connected to that lost hdmi the Tv was running that box on hdmi and that port is now dead, lucky rest of A board survived and the other HDMI are ok. then we had lights, fans and the ELCB ccts blown.

              rip the a board and see if there's any evidence of burning near the HDMI ports

              finding an A board is probably the easiest solution

              Comment

              • tw2005
                Badcaps Legend
                • Oct 2011
                • 6458
                • Australia

                #8
                Re: Panasonic TH-37PX80EA thunder lightning

                you can get the manual from Elektrotanya, my ISP loves resetting the connection whenever I try to upload over about 16mb

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 31003
                  • Albion

                  #9
                  Re: Panasonic TH-37PX80EA thunder lightning

                  Originally posted by tw2005
                  you can get the manual from Elektrotanya, my ISP loves resetting the connection whenever I try to upload over about 16mb
                  sounds like an invisible proxy may be in place.
                  wouldnt surprise me if that little bitch tony abot was routing everything through pine-gap still.

                  Comment

                  • tw2005
                    Badcaps Legend
                    • Oct 2011
                    • 6458
                    • Australia

                    #10
                    Re: Panasonic TH-37PX80EA thunder lightning

                    Originally posted by stj
                    sounds like an invisible proxy may be in place.
                    wouldnt surprise me if that little bitch tony abot was routing everything through pine-gap still.


                    Invisible proxy? please explain

                    I think it's a Telstra thing

                    Actually Pm me rather than go way off topic with a whole lot of stuff

                    Comment

                    • rtstorm
                      Badcaps Veteran
                      • Feb 2012
                      • 971
                      • Croatia

                      #11
                      Re: Panasonic TH-37PX80EA thunder lightning

                      well i downloaded the schematics. And i find out that i do not have 5V anywhere on output of P-board. I think it is lost somewhere. All pins on P5, P7 and P25 are 0V.

                      Last edited by rtstorm; 08-06-2015, 01:57 PM.
                      ...the quieter you become the more you are able to hear...

                      Comment

                      • rtstorm
                        Badcaps Veteran
                        • Feb 2012
                        • 971
                        • Croatia

                        #12
                        Re: Panasonic TH-37PX80EA thunder lightning

                        Maybe the IC501 wont sent signal to switch FET (Q537)
                        ...the quieter you become the more you are able to hear...

                        Comment

                        • RJARRRPCGP
                          Badcaps Legend
                          • Jul 2004
                          • 6304
                          • USA

                          #13
                          Re: Panasonic TH-37PX80EA thunder lightning

                          Originally posted by tw2005
                          you can get the manual from Elektrotanya, my ISP loves resetting the connection whenever I try to upload over about 16mb
                          Sounds more like a network driver or a firewall issue. Maybe a faulty router. Is that occurring at other sites?
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                          • rtstorm
                            Badcaps Veteran
                            • Feb 2012
                            • 971
                            • Croatia

                            #14
                            Re: Panasonic TH-37PX80EA thunder lightning

                            hey is it possible that IC501 has failed? It do not send signal to switch 5V. I tested P-board widouth other boards (i do not think it receive signal from other boards)

                            Is this some custom IC, i cannot find any datasheet
                            Attached Files
                            ...the quieter you become the more you are able to hear...

                            Comment

                            • rtstorm
                              Badcaps Veteran
                              • Feb 2012
                              • 971
                              • Croatia

                              #15
                              Re: Panasonic TH-37PX80EA thunder lightning

                              is it ok to shorten the 5V, like the IC has switched it.
                              ...the quieter you become the more you are able to hear...

                              Comment

                              • tw2005
                                Badcaps Legend
                                • Oct 2011
                                • 6458
                                • Australia

                                #16
                                Re: Panasonic TH-37PX80EA thunder lightning

                                Originally posted by rtstorm
                                is it ok to shorten the 5V, like the IC has switched it.
                                you could try jumping that 5v across and you may be right if the 5v needs to be switched by the P board that the P board maybe at fault. The newer models are different but I don't have the experience with these older models but following that flowchart with what you're saying now I believe it suggests p board with no standby voltage at any of those connectors you mentioned.

                                How do you read it?

                                Comment

                                • stj
                                  Great Sage 齊天大聖
                                  • Dec 2009
                                  • 31003
                                  • Albion

                                  #17
                                  Re: Panasonic TH-37PX80EA thunder lightning

                                  Originally posted by tw2005


                                  Invisible proxy? please explain

                                  I think it's a Telstra thing

                                  Actually Pm me rather than go way off topic with a whole lot of stuff
                                  invisible proxy is where your connection is intercepted and routed through someone elses network so the data can be logged or analysed.

                                  Comment

                                  • rtstorm
                                    Badcaps Veteran
                                    • Feb 2012
                                    • 971
                                    • Croatia

                                    #18
                                    Re: Panasonic TH-37PX80EA thunder lightning

                                    hello, i try to short 5V but now i only have STBY5V on pin9 of P25 connector. TV still wont turn on. There may be fault in IC520 (witch turn on main power)

                                    Problem is that i do not know anything about that IC's, is it some custom Panasonic IC.

                                    Do you guys know any detail or suggest anything else to try?
                                    ...the quieter you become the more you are able to hear...

                                    Comment

                                    • rtstorm
                                      Badcaps Veteran
                                      • Feb 2012
                                      • 971
                                      • Croatia

                                      #19
                                      Re: Panasonic TH-37PX80EA thunder lightning

                                      i found datasheet of that IC, can someone take a look at it please? Is this IC have data that need to be programmed? and would this IC need to close those switch Q537,Q555 by itself or it receive signal from A-board.
                                      Attached Files
                                      ...the quieter you become the more you are able to hear...

                                      Comment

                                      • rtstorm
                                        Badcaps Veteran
                                        • Feb 2012
                                        • 971
                                        • Croatia

                                        #20
                                        Re: Panasonic TH-37PX80EA thunder lightning

                                        can i short the Q555 also to get +15V ?
                                        Attached Files
                                        ...the quieter you become the more you are able to hear...

                                        Comment

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