Question about Acer H236HL 23" LED LCD Monitor - 16:9 - 5 ms Adjustable Display Angle - 1920 x 1080 - 16.7 Million Colors - 250 Nit - 100,000,000:1 - Full HD - DVI - HDMI - VGA - 26 W - Black - MPR II
This sort of flickering is sometimes reduced by turning brightness up. You have already tried that. My guess this is a PWM led monitor and that characteristic is what is bothering you. There are monitors that do not have the PWM feature. You can safely assume they are more expensive.
Posted on Apr 07, 2015
check that all the cables are properly connected, if possible test the monitor on another computer.
if the problem persist when connected to another computer, the problem is in the display itself. You could try going into the menu, and resetting it to factory defaults.
if that doesn't help the problem is most likely inside the display, possibly some of the components on the powersupply are worn out. Capacitors typically, which might need to be replaced in order to get rid of the problem.
the problem can also be in the settings of the computer, but if noting has been changed recently then its unlikely.
you can also try another cable, since the display has more than one way to connect to the computer, you could try another type of cable that fits the display and your computer.
if the display is still covered by warranty, after you have checked that the problem is not being caused by the settings of the monitor or by your computer, then you might want to get in touch with your dealer to arrange service / warranty replacement.
Hope it helps.
Posted on Apr 06, 2015
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Posted on Jan 02, 2017
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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