Maxent pdp42x2 lots of color spots

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  • ricosavy
    Badcaps Veteran
    • Jul 2012
    • 457
    • united states

    #1

    Maxent pdp42x2 lots of color spots

    I have a maxent tv belongs to a friend it has a lot of colors spots difrent colors green red if any one has any ideas what might be causing it.here is a pic.
    Attached Files
  • ricosavy
    Badcaps Veteran
    • Jul 2012
    • 457
    • united states

    #2
    Re: Maxent pdp42x2 lots of color spots

    Does it look like noise is causing this maybe bad Zboard

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: Maxent pdp42x2 lots of color spots

      This is maldischarge. It will require the software on the control board to be updated. Capkid in the USA has the equipment and software to do this, maybe worth PMing him. It is a common issue with these LG panels.
      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

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

        #4
        Re: Maxent pdp42x2 lots of color spots

        What equipment do you need to fix that issue? Any pictures/brands?
        I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Maxent pdp42x2 lots of color spots

          The jig from LG. It's about $150 from last I remember although a guy a while back was selling them for about $20 a piece.
          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

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

            #6
            Re: Maxent pdp42x2 lots of color spots

            Hmm ok , what do i search for if i want 1 from LG or Panasonic/Samsung?
            I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #7
              Re: Maxent pdp42x2 lots of color spots

              Panasonic doesn't have this issue, and Samsung never released a jig for their maldischarge issues which were fairly uncommon.
              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

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

                #8
                Re: Maxent pdp42x2 lots of color spots

                Ok , so LG has maldischarge issues. ( Philips also right? ).

                Could you provide me with a name of the jig?
                I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: Maxent pdp42x2 lots of color spots

                  Philips used LG and Samsung panels. Philips themselves never made plasma panels. (LG-Philips was LCD only; plasmas were always made by LG Electronics or LGE PDP.)

                  I don't know what the jig is called. Perhaps ask CapKid...
                  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

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

                    #10
                    Re: Maxent pdp42x2 lots of color spots

                    Thx for the info!
                    I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                    Comment

                    • ricosavy
                      Badcaps Veteran
                      • Jul 2012
                      • 457
                      • united states

                      #11
                      Re: Maxent pdp42x2 lots of color spots

                      Will replacing the logic board fix the problem

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: Maxent pdp42x2 lots of color spots

                        No. Needs a firmware update to fix a problem with the algorithms that compensate for panel aging.
                        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

                        • ricosavy
                          Badcaps Veteran
                          • Jul 2012
                          • 457
                          • united states

                          #13
                          Re: Maxent pdp42x2 lots of color spots

                          Here some pics
                          Attached Files

                          Comment

                          • ricosavy
                            Badcaps Veteran
                            • Jul 2012
                            • 457
                            • united states

                            #14
                            Re: Maxent pdp42x2 lots of color spots

                            Here pic

                            Comment

                            • ricosavy
                              Badcaps Veteran
                              • Jul 2012
                              • 457
                              • united states

                              #15
                              Re: Maxent pdp42x2 lots of color spots

                              Here another
                              Attached Files

                              Comment

                              • ricosavy
                                Badcaps Veteran
                                • Jul 2012
                                • 457
                                • united states

                                #16
                                Re: Maxent pdp42x2 lots of color spots

                                The last one
                                Attached Files

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK

                                  #17
                                  Re: Maxent pdp42x2 lots of color spots

                                  These pics confirm you have a 42" X2 panel, which is well known to suffer from maldischarge issues over time.
                                  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

                                  • capkid
                                    Badcaps Legend
                                    • Oct 2010
                                    • 1339
                                    • United States

                                    #18
                                    Re: Maxent pdp42x2 lots of color spots

                                    Finding the correct software to flash the control board for this TV has proven to be inconclusive, so I'm posting on the forum to see if someone might be able to shed some light.

                                    The service ROM master sheet that comes with the LG jig software mentions three panel models for the 42X2A control board and two software versions:

                                    (1) Software version 42X2ADNACS2_8D10.bin for PDP42X2002# and PDP42X202## panels

                                    (2) Software version 42X2ATDCS2_64C0.bin for PDP42X208## panel

                                    Based on the sticker on the ROM chip (42X2ATGL3A), I can only guess that "42X2ATDCSC2_64C0.bin" is the correct software version.
                                    Last edited by capkid; 02-17-2015, 11:37 PM.
                                    LG Plasma Mal-Discharge Correction Service

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