Help need LG W2254TQ firmware wanted

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  • Homer79
    Member
    • Dec 2014
    • 13
    • england

    #1

    Help need LG W2254TQ firmware wanted

    Hi,

    Ive recapped the PSU, the voltages are all ok, but I think the firmware is corrupted.

    Regards
  • Andrew F. Ali
    Badcaps Legend
    • Jan 2014
    • 2450
    • Trinidad & Tobago

    #2
    Re: Help need LG W2254TQ firmware wanted

    What symptoms does your LG display?

    Comment

    • Homer79
      Member
      • Dec 2014
      • 13
      • england

      #3
      Re: Help need LG W2254TQ firmware wanted

      It turns on, but the data cant be seen coming out of the eprom.
      The screen stays completely white,

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Help need LG W2254TQ firmware wanted

        Originally posted by Homer79
        It turns on, but the data cant be seen coming out of the eprom.
        The screen stays completely white,
        It sounds to me like the T-CON board may not be getting the DCV to run. Did you check the LVDS cable and the DCV on the T-CON SMD fuse at both ends of the fuse? Did some one work on this monitor before?
        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

        • Homer79
          Member
          • Dec 2014
          • 13
          • england

          #5
          Re: Help need LG W2254TQ firmware wanted

          Thank you, I didn't realise there wasn't a separate t-con board. The main smd fuse is blown. It only says F1 so I'm not sure what size it's meant to be. What size usually goes on a t-con board?

          Comment

          • fzabkar
            Badcaps Veteran
            • Mar 2009
            • 772
            • Australia

            #6
            Re: Help need LG W2254TQ firmware wanted

            A bit late, but here is a Chinese service manual (with circuits) for the W2254TQ:

            Comment

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