Acer AL2416W B Inverter Board MOSFET Damage

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  • mrpotato
    New Member
    • Mar 2011
    • 5
    #1

    Acer AL2416W B Inverter Board MOSFET Damage

    Hello all. I have this broken 24 inch bad boy (its HUGE! ) and I do not know if I can repair it.
    You can shine a flashlight at the screen to see a very dim display, so I figure the power board and logic board are working correctly. Thus, I took the monitor apart and inspected the inverter board. Sure enough, the inverter board looks like it has suffered some damage. You can very clearly see this at Q6 as it looks like the MOSFET leaked some black substance.
    Based on what you see, would it be worth pursuing this DIY repair with a 60-70 dollar budget and no tools (multimeter/soldering iron)?
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    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Acer AL2416W B Inverter Board MOSFET Damage

      Originally posted by mrpotato
      You can shine a flashlight at the screen to see a very dim display, so I figure the power board and logic board are working correctly.
      Correct. Do you see the backlight flash on even briefly?


      Based on what you see, would it be worth pursuing this DIY repair with a 60-70 dollar budget and no tools (multimeter/soldering iron)?
      If you do not see the backlight flash on, there are a number of fuses on the inverter board which will require a multimeter for testing purposes.

      If a fuse is bad, you will need a soldering iron, solder, desolder pump to replace the fuse.

      As you mentioned, there could also be bad mosfets on the inverter board. This can be confirmed with a multimeter.

      If you plan to do a "one of" fix, see if your friends/family have a multimeter/solder iron that you can borrow. However, if you plan to fix more monitors in the future, then you can easily buy tools for $60 or less.

      PS. Most people will probably replace the capacitors on the inverter board as well with brands like Panasonic, United Chemicon, Rubycon, or Nichicon.
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        Comment

        • Scenic
          o.O
          • Sep 2007
          • 2642
          • Germany
          #3
          Re: Acer AL2416W B Inverter Board MOSFET Damage

          either replace the whole inverter (pretty expensive) or buy the tools, the mosfet(s) and fuses and replace it yourself..

          datasheet for the Niko P5504EDG (which, judging by the 2nd pic, is clearly toast. black residue, discolored board and it even melted the solder and pushed it out at the tab)
          https://cdn.badcaps-static.com/pdfs/...1817a29d24.pdf

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