Samsung UN32EH4003FXZA, backlight on, sound but no picture

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  • beginner1
    New Member
    • Jul 2015
    • 7
    • USA
    #1

    Samsung UN32EH4003FXZA, backlight on, sound but no picture

    Hello. I am trying to fix a Samsung UN32EH4003FXZA television. It has sound but no picture. I can see that the backlight LED lights up but there is no image on the screen at all. Using the remote, I can change the volume and the inputs just fine. I also don't see any image using a flashlight and a very dark room. Al of the cables seem to be seated fine.

    I have tried resetting the picture with the remote and I replaced the power supply board but it still has no picture.

    Any ideas what the problem is?

    Thanks!
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

      Pictures, pictures, and pictures of the whole backside of the TV and the boards.
      More likely the T-CON is not getting the Voltage from the main board for the T-CON to run, but we really do not know for sure of what you have in your TV since we do not have the TV in front of us to see.
      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

        • beginner1
          New Member
          • Jul 2015
          • 7
          • USA
          #3
          Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

          Here's the pics I took. Thoughts? Thanks.
          Attached Files
          Last edited by beginner1; 07-14-2015, 08:05 PM.

            Comment

            • beginner1
              New Member
              • Jul 2015
              • 7
              • USA
              #4
              Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

              Here's another one.
              Attached Files

                Comment

                • beginner1
                  New Member
                  • Jul 2015
                  • 7
                  • USA
                  #5
                  Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

                  And here's the main board
                  Attached Files

                    Comment

                    • beginner1
                      New Member
                      • Jul 2015
                      • 7
                      • USA
                      #6
                      Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

                      I also just noticed that I can turn on the tv with the button on the bottom but if I try to turn it off that way, the red light blinks and the tv stays on.

                        Comment

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA
                          #7
                          Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

                          This TV has integrated T-CON into the panel, so the only that you can do is to check the connector with that big black that goes to the panel and see if you do have 5V (or 12V) for the T-CON to run. This is not going to be easy because there is no label for the pins of the connector, you just have to trace out the connection to see which one is/are the power pin/pins.
                          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

                            • hienton2
                              Senior Member
                              • Sep 2009
                              • 183
                              #8
                              Re: Samsung UN32EH4003FXZA, backlight on, sound but no picture

                              I have same tv , same problem Can not turn off tv. tv has no picture..It has 12v on the address board fuse.

                              Did you fix the tv.?
                              Last edited by hienton2; 05-25-2016, 01:04 PM.

                                Comment

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