Tried to replace the screen on my T450 and now have no backlight

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  • anything
    Member
    • Apr 2019
    • 28
    • kurdistan
    #1

    Tried to replace the screen on my T450 and now have no backlight

    Hello everyone, I've owned the T450 for a while now, absolutely love the keyboard on it. I finally decided to upgrade the terrible 900p TN panel to a 1080p IPS one (LP140WF3-SPD1) so that I can use it as my primary. Got the panel yesterday and in all the excitement forgot to disconnect the battery before actually removing the edp connector and replacing the screen. After a bit of research, I believe the fuse that limits the power to the screen is blown (F7?). Around the internet, I have seen many people who had a similar issue, which they managed to fix by either replacing the fuse or by just soldering short the fuse, but I didn't find a single photo of the fuse in question (F7?).


    Now I am posting this just to confirm my views on the issue, before I actually open the whole laptop up and screw something else up. Am I missing something or should I go ahead and solder the thing?
    Tags: None
    • vinceroger69
      Badcaps Legend
      • Mar 2012
      • 6714
      • uk
      #2
      Re: Tried to replace the screen on my T450 and now have no backlight

      picture of the fuse location
      Attached Files
      Last edited by vinceroger69; 02-10-2021, 06:43 AM.

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        • anything
          Member
          • Apr 2019
          • 28
          • kurdistan
          #3
          Re: Tried to replace the screen on my T450 and now have no backlight

          Originally posted by vinceroger69
          picture of the fuse location
          Thank you sir

            Comment

            • RethoricalCheese
              Badcaps Legend
              • Mar 2013
              • 1517
              • Estonia
              #4
              Re: Tried to replace the screen on my T450 and now have no backlight

              Yup, just solder it, no problem. Most other manufacturers have nothing between main power and LCD connector anyway.

                Comment

                • piernov
                  Super Moderator
                  • Jan 2016
                  • 4435
                  • France
                  #5
                  Re: Tried to replace the screen on my T450 and now have no backlight

                  Better have the fuse blow than have the PCB or the LCD connector turn into smoke or flames when something goes wrong.
                  OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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