Sony KDL-46XBR2 only PC input??

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  • kgavionics
    Senior Member
    • Apr 2017
    • 152
    • Canada
    #1

    Sony KDL-46XBR2 only PC input??

    hi
    i have a non working Sony KDL-46XBR2 when i turn it on the green light is on, but no backlight or picture.i checked everything and i trace the problem down to the main board.Luckly, i had the exact mainboard in my storage room.replaced the mainboard and when i turn it on nothing happens ( the same symptoms) , but if i press on the source button on the tv i can scroll between only two inputs.either the regular tv ( snowy picture or Video 9).if i hoock up the tv to my computer i get a very good picture.
    i want to know if someone has an idea what's going on?why i don't have the other inputs ( HDMI1,HDMI2, components...)
    thanks in advance
    Tags: None
    • petehall347
      Badcaps Legend
      • Jan 2015
      • 4438
      • United Kingdom
      #2
      Re: Sony KDL-46XBR2 only PC input??

      is the replacement board guaranteed working ? did it come from same set using same everything else ?
      did you try things like factory reset ?

        Comment

        • R_J
          Badcaps Legend
          • Jun 2012
          • 9588
          • Canada
          #3
          Re: Sony KDL-46XBR2 only PC input??

          Are the other inputs greyed out in the menu or not listed, Try a factory reset (see manual)

            Comment

            • kgavionics
              Senior Member
              • Apr 2017
              • 152
              • Canada
              #4
              Re: Sony KDL-46XBR2 only PC input??

              the replacement board is from another exact model.
              My problem i can't do a factory reset with the remote.I can use the remote for certain things for instance if i press on volume, channels menu...it works, but other button like power , tv/video are not working.
              is there any other way to do a factory reset without the remote control?

                Comment

                • R_J
                  Badcaps Legend
                  • Jun 2012
                  • 9588
                  • Canada
                  #5
                  Re: Sony KDL-46XBR2 only PC input??

                  I don't know, but I don't think so. here is a link to a service manual but may not help I did'nt see any firmware updates for this model either
                  Last edited by R_J; 07-16-2017, 09:16 PM.

                    Comment

                    • csmith
                      Member
                      • Aug 2014
                      • 46
                      • USA
                      #6
                      Re: Sony KDL-46XBR2 only PC input??

                      Have the same set which had the same issue problem was open fuse
                      on the tcon board.

                        Comment

                        • csmith
                          Member
                          • Aug 2014
                          • 46
                          • USA
                          #7
                          Re: Sony KDL-46XBR2 only PC input??

                          Never mind realized your set has a picture over the rgb!

                            Comment

                            • kgavionics
                              Senior Member
                              • Apr 2017
                              • 152
                              • Canada
                              #8
                              Re: Sony KDL-46XBR2 only PC input??

                              I fixed the problem, it was a fuse on the QM board.The QM board is the board that generates the user menu.Tv is working good now.
                              Thanks for your inputs guys

                                Comment

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