Sony Bravia klv-37S400A colour problem

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  • ajayigi
    Member
    • Aug 2011
    • 14

    #1

    Sony Bravia klv-37S400A colour problem

    Hello All

    I have a Sony Bravia KLV-37S400A. few days back when i turned on the tv the colour became blurred on the images and coloured

    part of images shows dark blur and some other side shows light colour blur. Am out of warrenty and used hotair as a test for any dry probs but no change.

    Any idea?? Would you suggest me that what might be the reason behind this?


    Am expecting a kind helping hand...

    By Jaymon

    I have taken many photos of the same and attaching. You can see the blur/washout colour in those screenshots.
    Attached Files
  • rmoody
    Learning Member
    • Jul 2011
    • 262

    #2
    Re: Sony Bravia klv-37S400A colour problem

    Is this a problem on all inputs? perhaps change to HDMI, component cable, or coax and see if the problem persist on all inputs.

    Comment

    • ajayigi
      Member
      • Aug 2011
      • 14

      #3
      Re: Sony Bravia klv-37S400A colour problem

      Hi rmoody, Thanx for your reply.
      Yes, this is a problem on all inputs.If we connect any mode the picture will be like this.
      Still get confused about which area would be the exact place to check n find.

      Thanx again
      Jaymon.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: Sony Bravia klv-37S400A colour problem

        Try fiddling with the LVDS cable. This is the connector which goes from the main processor board (with all the inputs) to the LCD panel or TCON board, which sits on the LCD panel.
        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

        • ajayigi
          Member
          • Aug 2011
          • 14

          #5
          Re: Sony Bravia klv-37S400A colour problem

          hi tom, thanx for ur reply.
          Yes, at first i tried the same too but no change.

          Thanx again,
          Jaymon

          Comment

          • Village Electronics
            OldPro
            • Apr 2011
            • 118

            #6
            Re: Sony Bravia klv-37S400A colour problem

            Originally posted by ajayigi
            hi tom, thanx for ur reply.
            Yes, at first i tried the same too but no change.

            Thanx again,
            Jaymon
            I think the panel is bad.

            Comment

            • hoadle
              Senior Member
              • Jul 2010
              • 174

              #7
              Re: Sony Bravia klv-37S400A colour problem

              I'm very sure the LCD panel bad

              Comment

              • cadillacman
                Badcaps Veteran
                • Feb 2011
                • 524

                #8
                Re: Sony Bravia klv-37S400A colour problem

                im on the fence too..

                could try a tcon board, but nowing sonys long history with shitty panels in bravias, its prolly in the panel.

                Comment

                • ajayigi
                  Member
                  • Aug 2011
                  • 14

                  #9
                  Re: Sony Bravia klv-37S400A colour problem

                  Hi friends, thanx for your valuable advices. Yes, let me check with the T-con board and all then i will surely post the reply.

                  Thanx again,
                  Jaymon

                  Comment

                  • PlainBill
                    Badcaps Legend
                    • Feb 2009
                    • 7034
                    • USA

                    #10
                    Re: Sony Bravia klv-37S400A colour problem

                    Here's a document on troubleshooting tcon and panel failures.

                    PlainBill
                    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                    Comment

                    • anihilistabroad
                      New Member
                      • Sep 2017
                      • 1
                      • New Zealand

                      #11
                      Re: Sony Bravia klv-37S400A colour problem

                      Originally posted by ajayigi
                      Hi friends, thanx for your valuable advices. Yes, let me check with the T-con board and all then i will surely post the reply.

                      Thanx again,
                      Jaymon
                      Hey Jaymon,

                      Did you end up replacing the T-Con board? I've been conned into buying a broken TV, did you ever get your TV to work?

                      Danny

                      Comment

                      • Davi.p
                        Badcaps Legend
                        • Sep 2009
                        • 4266
                        • Italy - Milan

                        #12
                        Re: Sony Bravia klv-37S400A colour problem

                        almost surely is the tcon board (gamma chip like as15-as19)

                        Comment

                        • noledud
                          Badcaps Veteran
                          • Dec 2013
                          • 413
                          • united kingdom

                          #13
                          Re: Sony Bravia klv-37S400A colour problem

                          faulty chip can be replaced

                          If you cant do it yourself there are AS15 repair services on ebay

                          Comment

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