Question about Acer 22" X223w LCD Monitor

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Acer monitor won't stay on

My Acer 20" monitor has been having a problem. When I turn it on the "Acer" logo flashes for a second then disappears, followed by a quick flash of my desktop for a second and turns off. The power button stays green. I used to be able to turn the monitor on and off 10 times and it would work normal until I turned it off again.

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  • Acer Master
  • 5,218 Answers

That looks like an inverter problem. If the monitor is still under warranty, contact the manufacturer (3 years for both parts and labor if purchased new). Otherwise, open up the back of the monitor and remove the shielding. Look for scorch marks, soot or leaking or bulging capacitors (look like cylinders on tripods). You could just replace the capacitors and the resistor that acted as a fuse. However, for $50-150, depending on the inverter, you can replace the entire part (unplug the wires for the backlight(s) and other connections and swap them).
You can also check the inverter by looking for the high frequency EM put out by the unit. Some high end multimeters will measure this (as will an oscilliscope). Hold the multimeter probes a fraction of an inch apart about an inch above the board (with the multimeter set to read frequency). If the inverter is good (and the frequency is reasonably close to the multimeter's range) you will see either a 1 or a value (kHz). If the inverter is bad or too far out of range, you will see a result near zero.

Once you have the monitor open, record the part number on the board with the damage, including the REV number if any. Search that part online (lcdparts.net and other sites have parts for monitors). Get the correct unit if possible. Some sites sell universal inverters and those can be used. However, you may find the controls reversed (up to lower brightness).

I hope this helps.

Cindy Wells
(a backlight issue would have resulted in a slow fading of the image or the screen looking red/pink.)

Posted on Jul 05, 2010

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  • Acer Master
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Acer monitor won't stay on? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:service@wisiny.com.thanks,we sincerely hope we can help you!
you can also check this boards whether suit you:
715G2892 2 3 Acer PWTVAC21MQDL Power Supply for X223W

Posted on Nov 18, 2014

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Posted on Jan 02, 2017

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