Problem with a Panasonic TH-42PZ80b

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  • laurence1023
    Member
    • Nov 2013
    • 23
    • United Kingdom

    #21
    Re: Problem with a Panasonic TH-42PZ80b

    Yep i did aha the two codes that are on the SC board is T TXNSC1RLTB the other one i have on their is 16060803272

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #22
      Re: Problem with a Panasonic TH-42PZ80b

      No TNPA number? It's written next to ORDER NO. It's possible you'll have to flip the board upside down to read off the TNPA number; Panasonic sometimes print it there for some reason.
      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

      • laurence1023
        Member
        • Nov 2013
        • 23
        • United Kingdom

        #23
        Re: Problem with a Panasonic TH-42PZ80b

        Yeah i got the seven blinks then i disconnected the sc2 and sc20 and then the green light flashed for about 3 secs then the light stayed green so it means the SC Board is gone?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #24
          Re: Problem with a Panasonic TH-42PZ80b

          Your diagnosis would appear to be correct. Meanwhile, I believe your part is TNPA4410. Please confirm.

          You can get it cheap from here:-
          http://www.ebay.co.uk/itm/TXNSC1RLTB...item2c6d9fd824

          But I prefer to order from these guys, their returns policy is good, for an extra fiver. I had a dud part from them before, and they let me keep it and sent me a new one (which worked.) Can't fault that:-
          http://www.ebay.co.uk/itm/42-PANASON...item460f0237a6
          http://www.ebay.co.uk/itm/42-PANASON...item416f015a5f
          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

          • laurence1023
            Member
            • Nov 2013
            • 23
            • United Kingdom

            #25
            Re: Problem with a Panasonic TH-42PZ80b

            Thank you tom!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #26
              Re: Problem with a Panasonic TH-42PZ80b

              Do let us know if it fixes the set!
              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

              • laurence1023
                Member
                • Nov 2013
                • 23
                • United Kingdom

                #27
                Re: Problem with a Panasonic TH-42PZ80b

                It still doesnt work

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #28
                  Re: Problem with a Panasonic TH-42PZ80b

                  Is the fault code the same? All connections OK?
                  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

                  • laurence1023
                    Member
                    • Nov 2013
                    • 23
                    • United Kingdom

                    #29
                    Re: Problem with a Panasonic TH-42PZ80b

                    ive double checked to make sure i have connected everything and it still blinks 7 red lights

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #30
                      Re: Problem with a Panasonic TH-42PZ80b

                      Is that with the buffer boards in place?
                      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

                      • laurence1023
                        Member
                        • Nov 2013
                        • 23
                        • United Kingdom

                        #31
                        Re: Problem with a Panasonic TH-42PZ80b

                        thats with all the boards connected

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #32
                          Re: Problem with a Panasonic TH-42PZ80b

                          If you go back to the isolated SC does it power on normally?
                          It is possible you got a defective board, though I could not be sure.
                          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

                          • laurence1023
                            Member
                            • Nov 2013
                            • 23
                            • United Kingdom

                            #33
                            Re: Problem with a Panasonic TH-42PZ80b

                            I went through the guide again and i didn't get the 7 blinking lights and a picture came up and ill attach it at the bottom and so i reconnect the SD board like it said and it went bang and i said ahh crap and now i get the 7 blinking lights so i take it i will need to replace the SD board now Thanks Laurence
                            Attached Files

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #34
                              Re: Problem with a Panasonic TH-42PZ80b

                              Did you make a connection change with the set powered up?
                              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

                              • laurence1023
                                Member
                                • Nov 2013
                                • 23
                                • United Kingdom

                                #35
                                Re: Problem with a Panasonic TH-42PZ80b

                                What do you mean?

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK

                                  #36
                                  Re: Problem with a Panasonic TH-42PZ80b

                                  The only way I can see such a bang happening was if connections were changed while the set was still turned on, i.e. plugged into AC?
                                  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

                                  • laurence1023
                                    Member
                                    • Nov 2013
                                    • 23
                                    • United Kingdom

                                    #37
                                    Re: Problem with a Panasonic TH-42PZ80b

                                    Originally posted by tom66
                                    The only way I can see such a bang happening was if connections were changed while the set was still turned on, i.e. plugged into AC?
                                    Yeah i made sure the isolating crocodile clips wasnt touching anything and yeah AC

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #38
                                      Re: Problem with a Panasonic TH-42PZ80b

                                      So, the TV -was- powered up and you connected the buffer while it was powered up?
                                      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

                                      • laurence1023
                                        Member
                                        • Nov 2013
                                        • 23
                                        • United Kingdom

                                        #39
                                        Re: Problem with a Panasonic TH-42PZ80b

                                        I disconnected it all like it said on the guide then it didn't get the 7 blinks so i reconnected the SD board and then it went bang the TV powered down so i unplugged it checked it then plugged it back in and got 7 lights

                                        Comment

                                        • tom66
                                          EVs Rule
                                          • Apr 2011
                                          • 32560
                                          • UK

                                          #40
                                          Re: Problem with a Panasonic TH-42PZ80b

                                          Yes that is what I am getting at. Damage like that can occur when you disconnect and reconnect stuff while live. All connection changes must be made with power off. But since you have still got distorted image on the top it might just be a case of replacing that damaged buffer.
                                          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

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