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Acer also have a capacitor problem on their LCD monitor line? I bet Samsung and Acer had the same vendor where they got their capacitors from. The problem was so similar that I was able to fix it with out any problems at all.

So, here’s guide on how you will fix an Acer X221W LCD Monitor: (For Samsung LCD Power Supply Problem Guide)

1. Unscrew the LCD stand (4 screws)
2. Remove the plastic back of the LCD by popping it out. Please use a plastic material so it won’t mess up the plastic cover.
3. As soon you open the back, you will see the power supply casing.
4. Before removing the power supply, unplug all connectors. 1 top(Connected to the LCD), 1 bottom(Connected to the buttons), and 4 at the left.
5. Unscrew the power supply casing (2 screws at each ends, 4 total)
6. flip it around so you see the back of the power supply board.
7. Unscrew the female screws for the VGA and DVI inputs.
8. Unscrew the power supply board.
9. The power supply board is connected to another controller board, so unscrew them the same time.

Now that you see the board, look for bad capacitors. Here’s is how you can identify bad capacitors

For the particular Acer X221W LCD Monitor, I actually replace 2 of the 220uf 25vdc Capacitor 105c High Temp, Radial Leads and 330uf 16v Capacitor 105c High Temp, Radial Leads
.
Here’s an actually picture where the 2 220uf were side by side and both were bad.

If I remember it correctly, all of the 220uF and 330uF was bad and had to replace it. Total 5 capacitors were replace. After everything was replace and installed back, the LCD monitor work like it was brand new!

Now, don’t tell me this is a coincidence. Like what I said before Samsung and Acer probably had the same vendor for their capacitors and that’s probably why this particular LCD monitor went bad. Do you think we can get the bottom of this on were Samsung and Acer got their faulty capacitors? Please leave me a comments and talk about this issue.