Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

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  • sugar_ray
    Senior Member
    • Dec 2012
    • 121
    • Canada

    #1

    Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

    Toshiba LCD 50L1350UC

    As you can see in the video. You get 2 seconds of blurred picture then it goes back to normal followed by 2 seconds of blurred picture then back to normal etc.......

    I can pretty much rule out bad panel as there dont seem to be any fixed lines. problem just started after turning on set one day. they just gave up on this tv and bought a new one!! Im leaning towards a Bad-TCON as it seems like a timing control issue.

    Just wanted some thoughts from the pros here?? more then likely a bad T-con or a even a bad main board? seems very fixable!! was a free set for me, but im looking for "best guess" before spending any $$$$

    the set displays this problem on ALL inputs

    VIDEO OF SYMPTOMS:

    https://www.youtube.com/watch?v=YKvX...ature=youtu.be
  • sugar_ray
    Senior Member
    • Dec 2012
    • 121
    • Canada

    #2
    Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

    Penny for your thoughts??

    Comment

    • benq1
      Member
      • Apr 2010
      • 12

      #3
      Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

      Have you measured the voltage going to the LED panel?

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

        Did you try reseating the LVDS cables to the T-CON?
        Does it get worst after an hour or so?
        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

        • sugar_ray
          Senior Member
          • Dec 2012
          • 121
          • Canada

          #5
          Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

          Have not done so. What do you gather the voltage should be?

          Yes I attempted reseating the 2 ribbon cables with no change.


          I had a similar issue with a Samsung and a bad T-con was the problem.
          Thinking bad T-con is just a gut feeling. The manufacture date on this panel is only 14 months old!! Yup, 2 months past warranty
          Last edited by sugar_ray; 11-10-2014, 11:53 PM.

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA

            #6
            Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

            It has two cables from the main board to the T-CON? This TV can do 120HZ so it may have another board for the Frame Rate Conversion (FRC).
            So you can try new board to see what happen. You can also try cooling and heating to see if the problem gets worst or go away.
            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

            • sugar_ray
              Senior Member
              • Dec 2012
              • 121
              • Canada

              #7
              Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

              No it only has 1 cable from main board to Tcon. The other 2 attached to the Tcon are your classic ribbon style cables that travel to the panel

              Appreciate your input BudM!! Like your thinking as well. A bad FRC is exactly what symptom the display is showing!! However, this panel only has 3 boards in it (pretty basic). Ps,tcon,and main input board. Unless the FRC board is hidden somewhere behind the panel ??


              I did go ahead and order a known good Tcon from a reputable online dealer I've dealt with many times. $11.75 grand total!! Well worth the gamble. I'll post the results.

              Thanks again for everyone's input
              Last edited by sugar_ray; 11-11-2014, 12:39 PM.

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK

                #8
                Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                This can also be caused by a bad LCD panel.
                In many TVs, FRC is on the main board or T-con, usually a separate processor with a heatsink and 1-2pcs DDR RAM chips.
                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

                • sugar_ray
                  Senior Member
                  • Dec 2012
                  • 121
                  • Canada

                  #9
                  Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                  This is the animal
                  Attached Files

                  Comment

                  • benq1
                    Member
                    • Apr 2010
                    • 12

                    #10
                    Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                    Hi sugar ray
                    The reason I asked what the voltage was . Is that I have an identical model that has no picture and the voltage I am getting is 79 volts to the panel and the board says 111 volts .
                    I am just trying to figure out if the voltage is too low or the panel is toast.

                    Comment

                    • Melted
                      New Member
                      • Aug 2015
                      • 2
                      • Canada

                      #11
                      Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                      Originally posted by sugar_ray
                      I did go ahead and order a known good Tcon from a reputable online dealer I've dealt with many times. $11.75 grand total!! Well worth the gamble. I'll post the results.
                      Hi. I know it's been a while since you posted this. I have the same problem with the same Toshiba model. I wonder if the issue was with the TCON board? Please let me know, it'll be hugely appreciated. Also, if you could PM me where you ordered the new board, that'd be just great.

                      Many thanks.

                      Comment

                      • jpujols55
                        New Member
                        • Aug 2015
                        • 1
                        • United States

                        #12
                        Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                        did the tcon fix this issue

                        Comment

                        • isaac2264
                          New Member
                          • Aug 2015
                          • 3
                          • india

                          #13
                          Re: Toshiba 50L1350UC Is this a bad T-con symptom?? WITH VIDEO

                          hi everyone!

                          Comment

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