Vizio LX37 1080P Saturated Brightness

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  • dloj333
    Member
    • Jun 2013
    • 11
    • United States

    #1

    Vizio LX37 1080P Saturated Brightness

    Hi Guys, first time posting issues here.

    I have a Vizio LX37HDTV 1080p and last night the screen just became saturated with brightness.

    You can vaguely still see the picture and the menu from the remote. I tried changing anything to see what kind of results and nothing changed as I changed brightness and contrast.

    I searched the forum and everyone spoke of a white screen but I can still vaguely still see the picture but very little.

    So I wasn't sure if this meant a different path in troubleshooting.

    Any help would be appreciated.

    I have been in the computer repair industry for sometime so I am familiar with boards and such.

    Thanks in advance.
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Vizio LX37 1080P Saturated Brightness

    Can you take the back of the TV off and show us pictures of what's inside?
    This can be a T-con gamma IC fault, which is easily repaired.
    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

    • dloj333
      Member
      • Jun 2013
      • 11
      • United States

      #3
      Re: Vizio LX37 1080P Saturated Brightness

      Thanks for the reply.

      It is actually a VO37OM

      I will take the back off and send images.

      Comment

      • dloj333
        Member
        • Jun 2013
        • 11
        • United States

        #4
        Re: Vizio LX37 1080P Saturated Brightness

        Here is the back.

        I would like to know what we are looking for.

        Hope this helps
        Attached Files

        Comment

        • dloj333
          Member
          • Jun 2013
          • 11
          • United States

          #5
          Re: Vizio LX37 1080P Saturated Brightness

          Finally got all three.
          Attached Files

          Comment

          • dloj333
            Member
            • Jun 2013
            • 11
            • United States

            #6
            Re: Vizio LX37 1080P Saturated Brightness

            Sorry about that.
            Last but not least
            Attached Files

            Comment

            • dloj333
              Member
              • Jun 2013
              • 11
              • United States

              #7
              Re: Vizio LX37 1080P Saturated Brightness

              Thanks for the input Tom what is a T-Conn gamma prob?

              Comment

              • Glitcher
                Badcaps Veteran
                • Mar 2013
                • 673
                • USa

                #8
                Re: Vizio LX37 1080P Saturated Brightness

                A photo of the problem could help!

                I just recently repaired a TV with a bad gamma IC on the TCON. Sometimes the Gamma IC would go bad causing increased white brightness or a negative inverted looking picture. Its the chip on the Tcon board labeled AS15. They go cheap for about less than $5.
                Attached Files

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Vizio LX37 1080P Saturated Brightness

                  Here are more photos:
                  http://s807.photobucket.com/user/bud...?sort=3&page=1
                  More examples:
                  https://www.badcaps.net/forum/showth...mma#post304275
                  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

                  • dloj333
                    Member
                    • Jun 2013
                    • 11
                    • United States

                    #10
                    Re: Vizio LX37 1080P Saturated Brightness

                    Thanks everyone for your feedback.

                    Yes it seems it is the T-Conn board (LCD Board).

                    Anyone have any suggestions on a new board?

                    I don't have the facilities to replace the Chip.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: Vizio LX37 1080P Saturated Brightness

                      any of:
                      http://www.ebay.com/sch/i.html?_saca...70hw02&_sop=15
                      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

                      • dloj333
                        Member
                        • Jun 2013
                        • 11
                        • United States

                        #12
                        Re: Vizio LX37 1080P Saturated Brightness

                        Thanks.

                        So it doesn't matter if it is not the same numbered board?

                        My board is a a 5537T05C01

                        Are refurbished almost as good as brand new?
                        Last edited by dloj333; 06-17-2013, 10:21 AM. Reason: adding text

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: Vizio LX37 1080P Saturated Brightness

                          For T-con boards, if the board looks the same and the connectors are the same you can usually get away with having a slightly different model number.

                          Refurbished probably means pull from smashed TV set, whereas brand new should mean the part is original from the suppliers. However, there is one thing to be careful of for used, pulled boards from smashed sets. There is a chance you can get a dud board, as despite what sellers say, they typically do not test any boards.
                          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

                          • dloj333
                            Member
                            • Jun 2013
                            • 11
                            • United States

                            #14
                            Re: Vizio LX37 1080P Saturated Brightness

                            Thanks for the info.

                            Comment

                            • dloj333
                              Member
                              • Jun 2013
                              • 11
                              • United States

                              #15
                              Re: Vizio LX37 1080P Saturated Brightness

                              Yep it was the T-Con board.

                              Ordered one from ShopJimmy and it is working fine.

                              Thanks Again.

                              Comment

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