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Hello, This usually indicates that the filter capacitors in the power supply are not working right. When the unit is turned on they should build up a charge that lets the board power up the monitor but when they start to go out it takes longer and longer to get the charge built up. Here is a link to information on rebuilding the power supply board by replacing the capacitors, this should get you back up and running.
My acer 223W monitor has a flicker or moving lines in it?
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:email@example.com,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
Your question was presumably cut off in the title of your post, but on the power brick, there should be several statistics of the power supplied by the cable. There should be watts, Amps, and whether the output is AC or DC. I believe your monitor takes DC power, so if you are buying another power supply, make sure that it gives out DC power, not AC. Also make sure to get the specific wattage, and for a monitor that size, 3.0 amps should be more than enough to keep a steady power flow, and also keep the power brick at a reasonable temperature.
If you can splice wires, this will fix it. First beat the old Acer power supply to death. (God, that felt good) Then cut the wire off the old brick and splice it onto a laptop power supply that's rated at 18 or 19 volts @ more than 4 amps. Dell uses them and I used one from an HP dv2000 that cooked itself to death. The Monitor runs on less than 3 amps and is quite happy at 18 or 19 volts. By the way, the white wire is positive and the black wire is negative. Don't worry about those four pins on the plug. If you look on the case of the old brick, you'll see that the pinout is quite simple - 1 and 2 are positive, 3 and 4 are negative.
This one should work for you it's the same voltage and amperage as your unit. 19VDC 3.16A Any standard power cable from an old printer or computer will work with one of those PS's.
The only thing you need to check before you buy is the polarity of the barrel connector. I looked on the net but could not find out that info so look at the jack where the power plugs into the monitor. You might see a little diagram showing a + and - signs. If the line coming off the + sign goes to the semi-circle than the barrel is positive and if the - goes to the SC the barrel is negative. Ask them before you buy which way that one is. As long as they are the same you will be able to use that PS.