Panasonic TC-P42X5 with broken screen

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  • kevinm34232
    Badcaps Legend
    • May 2012
    • 1884
    • USA

    #1

    Panasonic TC-P42X5 with broken screen

    Acquired TV with broken screen, had 7 blinks. Disconnected all panel connections has 8 blinks. Trying to determine what parts are good. Is there a service manual for this one, or buffer board bypass? Thanks!
    Attached Files
  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6458
    • Australia

    #2
    Re: Panasonic TC-P42X5 with broken screen

    Looking at the layout, combined sc/sd/su so there won't be a bypass like the traditional setup where you could at least determine if the Sc was still good by jumping SC50. Chances are the SN board is bad with a cracked/shorted panel.

    Maybe a quick check between gnd and the buffer outputs and see if any shorts there. SOS8 most likely because no SN or SS connected, was it just the panel ribbons disconnected from the SN/SS boards or power and SC20 also?

    I have not worked on this setup before except my current 42" which is equivalent to a 42C2 and has SN/SS boards but yours is definitely different again looking at the layout.

    Comment

    • kevinm34232
      Badcaps Legend
      • May 2012
      • 1884
      • USA

      #3
      Re: Panasonic TC-P42X5 with broken screen

      No shorts to ground on buffer outputs. Tried different combinations of removing connections still cant get TV to stay on. I figured with this setup removing panel connections would do it.

      Comment

      • tw2005
        Badcaps Legend
        • Oct 2011
        • 6458
        • Australia

        #4
        Re: Panasonic TC-P42X5 with broken screen

        Yeah i was thinking that too, i'm struggling to find much help on it for you. may have to wait until Tom gets on. being such a late model not much floating for free on the web as far as manuals go.

        This blink chart for a X3 might be close, I'd prefer to find a training guide, no joy though. Most of what I have is for the traditional SC/SD/SU setups.

        I don't think I've fired a panasonic without any panel connectors, just the SD/SU board isolation SC50 jump so my head is void of experience on this one.
        Attached Files

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Panasonic TC-P42X5 with broken screen

          Panel usually kills SN on this though I've never conclusively found bad buffer ICs. SS/PSU (combined) and A are usually OK. I got one of these with a smashed screen which had no power at all, I am thinking the user smashed the screen in frustration.

          This is crappy Panasonic with TAICON, AISHI caps.
          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

          • tw2005
            Badcaps Legend
            • Oct 2011
            • 6458
            • Australia

            #6
            Re: Panasonic TC-P42X5 with broken screen

            Originally posted by tom66
            Panel usually kills SN on this though I've never conclusively found bad buffer ICs. SS/PSU (combined) and A are usually OK. I got one of these with a smashed screen which had no power at all, I am thinking the user smashed the screen in frustration.

            This is crappy Panasonic with TAICON, AISHI caps.
            Ha, did not even pick up that SS combo. Thought it was hiding beneath the PSU.

            Yuck. How lovely, do the SS and you need a whole PSU as well. Bet that would be expensive to buy.

            Last edited by tw2005; 07-05-2013, 08:47 AM.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #7
              Re: Panasonic TC-P42X5 with broken screen

              Also got the side buttons on it. Panasonic sure were thinking about lowering costs big time on that.
              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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