My monitor has been turning on and off recently but the green light stays on then today I had a burning smell come from it and now half of the screen is really dark and it turns off after awhile.
Do not plug it into the wall anymore, more damage or fire may occurr.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
Service manual: http://elektrotanya.com/?q=showresult&megnev=ACER&megnev2=AL2416&kategoria=&kat2=all
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