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Ugreen HDMI splitter missing a pulldown resistor

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  • spleenharvester
    Badcaps Veteran
    • Mar 2010
    • 958
    • UK
    #1

    Ugreen HDMI splitter missing a pulldown resistor

    Odd one I've found. This splitter likes to cut out - on my Xbox Series S the display/audio would randomly go to black for a few seconds - on my PC the monitor would flicker several times before eventually staying on. A few others have reported similar issues. Couldn't be bothered returning it for the sake of £8.

    I pulled it apart and found it is driven by a Texas TS3DV642 mux/demux. There appears to be a missing pulldown resistor on the HPD line, it is just left floating. Adding a 100K pulldown to ground fixes the flickering.

    (Not that this is worth the hassle for an £8 splitter)
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    Dell E7450 | i5-5300U | 16GB DDR3 | 256GB SSD
    Tags: None
    • sam_sam_sam
      Badcaps Legend
      • Jul 2011
      • 6083
      • USA
      • Soldering Junkie
      #2
      To me it would be worth it if it truly fixed the issue that you were experiencing with it

        Comment

        • Agent24
          I see dead caps
          • Oct 2007
          • 5309
          • New Zealand
          • Electronics and computer repair
          #3
          This should go in the ghetto mods section
          "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
          -David VanHorn

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31612
              • Albion
              #4
              it's gotta be fixed,
              if they are all the same you have no choice.
              maybe get an smd resister next time though

                Comment

                • spleenharvester
                  Badcaps Veteran
                  • Mar 2010
                  • 958
                  • UK
                  #5
                  Oh this wasn't a permanent fix haha I was just testing for curiosity. The thing went in the bin, I have loads of better splitters.
                  Dell E7450 | i5-5300U | 16GB DDR3 | 256GB SSD

                    Comment

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