LCD TV needs to warmup B4 picture shows

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  • McDuffer
    Member
    • May 2014
    • 10
    • USA
    #1

    LCD TV needs to warmup B4 picture shows

    I have a Samsung LN-T4069 TV. When I first turn the TV on in the morning, I have sound and backlight (whitish, grayish light) but no picture. If I leave it on for 2-3 minutes, turn it off and then on again, the picture will then show up.

    I thought it was a capacitor issue (saw 2 bad caps) got a cap replacement kit from LCDAlternatives (those guys ROCK!) - swapped out all the caps, but the problem remains……

    So now what? What could be causing this? I did not replace the really big capacitor in the middle - that was not in the kit - could that bad boy be the problem?

    Thank you one and all. As a woman attempting her first capacitor soldering activities, my friends think I am crazy, but I am really enjoying this - just wish I could fix the problem!
    Tags: None
    • RJARRRPCGP
      Badcaps Legend
      • Jul 2004
      • 6301
      • USA
      #2
      Re: LCD TV needs to warmup B4 picture shows

      Originally posted by McDuffer

      I thought it was a capacitor issue (saw 2 bad caps) got a cap replacement kit from LCDAlternatives (those guys ROCK!) - swapped out all the caps, but the problem remains……
      I dunno. I recommend to only get caps from badcaps.net.
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        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: LCD TV needs to warmup B4 picture shows

          It sounds like the problem may be in the T-CON board. You can unplug the TV, then heat up the T-CON board with hairdryer for about a minute, then plug the TV in and turn on to see if it is OK.
          "LCDAlternatives" he is good, he is a friend of mine, and I help him out choosing good caps for the kits.
          BTW, you should post this in the TV section instead so you will get more help.
          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

            • cyberhack
              Badcaps Veteran
              • Feb 2013
              • 466
              • Uk
              #4
              Re: LCD TV needs to warmup B4 picture shows

              get a hair dryer and warm up the caps to see if its a cap

                Comment

                • McDuffer
                  Member
                  • May 2014
                  • 10
                  • USA
                  #5
                  Re: LCD TV needs to warmup B4 picture shows

                  Thanks so much for the advice on the hair dyer and on posting in the right place - these nubies, what can you do with them!

                    Comment

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