Lg funny looking picture

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  • LEEDASH
    Badcaps Veteran
    • Dec 2012
    • 481
    • Bedfordshire

    #1

    Lg funny looking picture

    Attached Files
  • LEEDASH
    Badcaps Veteran
    • Dec 2012
    • 481
    • Bedfordshire

    #2
    Re: Lg funny looking picture

    Attached Files

    Comment

    • LEEDASH
      Badcaps Veteran
      • Dec 2012
      • 481
      • Bedfordshire

      #3
      Re: Lg funny looking picture

      Screen,inverter,board trouble ? I'm lost model is a 42 lg 3000

      Comment

      • stj
        Great Sage 齊天大聖
        • Dec 2009
        • 31087
        • Albion

        #4
        Re: Lg funny looking picture

        interesting mosaic effect!
        i would say it needs degausing.
        except it's not a crt!

        Comment

        • LEEDASH
          Badcaps Veteran
          • Dec 2012
          • 481
          • Bedfordshire

          #5
          Re: Lg funny looking picture

          Degassing is that what you had to do on plasma screens

          Comment

          • stj
            Great Sage 齊天大聖
            • Dec 2009
            • 31087
            • Albion

            #6
            Re: Lg funny looking picture

            no, just crt's

            Comment

            • matt@bdtinc.com
              Member
              • Jun 2015
              • 19
              • United States

              #7
              Re: Lg funny looking picture

              Check T-CON connector ends and if they look tarnished clean them carefully with an eraser.

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #8
                Re: Lg funny looking picture

                That is bad GAMMA Voltages, you can try reseating the cables first.
                SJ sell GAMMA IC, or you can get new T-CON.
                http://www.shopjimmy.com/catalogsear...lt/?q=42lg3000
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • LEEDASH
                  Badcaps Veteran
                  • Dec 2012
                  • 481
                  • Bedfordshire

                  #9
                  Re: Lg funny looking picture

                  Thank you for replies,I will try the eraser option first,but can I ask what is gamma ic,is that the connector ribbon strip ?

                  Comment

                  • stj
                    Great Sage 齊天大聖
                    • Dec 2009
                    • 31087
                    • Albion

                    #10
                    Re: Lg funny looking picture

                    it's a chip on the t-con board that generates a load of reference voltages.

                    attached an example of one that fails A LOT.
                    Attached Files
                    Last edited by stj; 06-19-2015, 04:17 AM.

                    Comment

                    • LEEDASH
                      Badcaps Veteran
                      • Dec 2012
                      • 481
                      • Bedfordshire

                      #11
                      Re: Lg funny looking picture

                      Ok thank you,not sure what tcon it is not looked yet

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA

                        #12
                        Re: Lg funny looking picture

                        Originally posted by LEEDASH
                        Ok thank you,not sure what tcon it is not looked yet
                        You need to up load the pictures of the back side of the TV to show all the boards.
                        Did you go to the link I provide? It shows the IC and the T-CON board.
                        Last edited by budm; 06-19-2015, 09:07 AM.
                        Never stop learning
                        Basic LCD TV and Monitor troubleshooting guides.
                        http://www.badcaps.net/forum/showthr...956#post305956

                        Voltage Regulator (LDO) testing:
                        http://www.badcaps.net/forum/showthr...999#post300999

                        Inverter testing using old CFL:
                        http://www.badcaps.net/forum/showthr...er+testing+cfl

                        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                        http://s807.photobucket.com/user/budm/library/

                        TV Factory reset codes listing:
                        http://www.badcaps.net/forum/showthread.php?t=24809

                        Comment

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