Panasonic TX-P42G20 bad panel?

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  • Hombre
    Badcaps Veteran
    • Jul 2013
    • 231
    • Croatia
    #1

    Panasonic TX-P42G20 bad panel?

    Hi

    I think that the problem with this set is the bad panel, but i would like second opinion
    As shown on pictures problem is on the left side of tv. This black bar is spread from midlle to the left edge in width as the four connectors on C2 board (out of 7 IIRC). Tried to reseat cables on mainboard and on C2 board, but nothing happened, everything remained the same.
    Also tried test patterns and mirror optinon in service menu, but the vertical bar stayed in same position. It's black bar, nothing in it, completely dead.
    Well i tought that it can be C2 board problem until i noticed one black horizontal bar that is going from the left edge of the screen to aprox half of this wide vertical bar. I don't think that it could be buffer connector on SD/SU board (it would be across whole screen)?

    Any thoughts?

    Thanks!
    Attached Files
    Last edited by Hombre; 12-29-2014, 03:33 AM.
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia
      #2
      Re: Panasonic TX-P42G20 bad panel?

      Yeah you'd wonder what the chances of an area sideby side going but seeing that line suggests panel damage/shorted?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK
          #3
          Re: Panasonic TX-P42G20 bad panel?

          No chips/cracks in that area? Odd fault...
          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

            • Hombre
              Badcaps Veteran
              • Jul 2013
              • 231
              • Croatia
              #4
              Re: Panasonic TX-P42G20 bad panel?

              Wel i tried to find some, but no, there isn't any (although it was my first guess to...). I'll try to check it once more.
              Don't know if it is smart move to buy a C2 buffer board, but i doubt it is really?

                Comment

                • Ltank
                  Badcaps Veteran
                  • Jun 2013
                  • 776
                  • USA
                  #5
                  Re: Panasonic TX-P42G20 bad panel?

                  The pic that shows the deop down menu. Is it in the vertical black section of the other pics? If the menu works in the black verical section then the screen shoud be good and the Main board is bad

                    Comment

                    • mmartell
                      Badcaps Legend
                      • Oct 2013
                      • 3189
                      • Canada
                      #6
                      Re: Panasonic TX-P42G20 bad panel?

                      Ya I'm confused. Pic 2 looks like it has the service menu overlaying the bad area ?

                        Comment

                        • Hombre
                          Badcaps Veteran
                          • Jul 2013
                          • 231
                          • Croatia
                          #7
                          Re: Panasonic TX-P42G20 bad panel?

                          No, service menu isn't shown on bad area, look at LSI DATA line and you will se the number 5 cut at half
                          No chips/cracks on panel, so conclusion is bad panel I assume?
                          At least all boards are OK (except maybe C2) so it will go for parts...

                            Comment

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