I had bought my Acer 1717 about 7 month ago and just 3-4 day ago i face this problem. When i play my Winamp, the monitor will have the frequency disturbance. Is it normal problem with this monitor(maybe because the internal speaker incorporated in it) or my monitor going to be broken???someone help me please..........
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Re: frequency disturbance at monitor
Evidently there is a loose connection within one of the ribbon cables going to the screen, you will have to open the monitor and reseat them. otherwise quit using the internal speakers as the vibration may kill the monitor dead.
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that buzzing noise is frequency response from the cathodes (back lights) and the inverter inside that monitor.
Personally, i'd keep the brightness up a bit more to alleviate the issue. I'd also check to see if the power that is going to the device is clean. Sometimes there can be issue with power causing frequency disturbance and can cause some pretty random issues with power sensitive devices.
Try running a battery backup or power strip to see if it helps.
Try this Turn off the monitor then unplug all the cables , press and hold down the power button for 15 sec , see whether there is any magnetic device near by the monitor , eg Anything which is made of Iron, or any metal, keep them away from the monitor , if this is not fixing the issue , i Guess the monitor need to be serviced !
This problem is caused by a defective power supply. The unit is still under warranty so you will need to contact Acer to get it serviced. We web site is www.Acer.com click on the service link and they will set up a return authorization for you. The normal repair time is 7-10 days including shipping times.
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Acer X223W flickers using DVI cable, but ok with VGA!!??
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:firstname.lastname@example.org,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
"noisy vertical bars in the video" is indicative of 60 Hz AC component riding in with the video signal. Pls check that all connectors are snug and fit to where they are connected. It would do no harm to try to remove and reinstall/reconnect all cables. Additionally, try plugging in the monitor into a different socket/AC mains. Further, you may want to try and check your cable for any stray shielding or anything out of the ordinary.
Other than the above, could not suggest more easy user action. The alternatives are to try a different monitor to determine if it is the computer video card or the Acer 1717 that is in question; or try the Acer 1717 in another PC. It should be mentioned that some household appliances can also cause AC interference such as florescent lamps, wireless phones or even an electric clock.
Of course you can also try increasing your PC's Screen refresh Rate to anything other than 60Hz.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.