Did you do anything to your monitor before it stopped working? Move it? Knock it off the desk? Give it a bath? (I really hope you didn’t give it a bath) Before you try a DIY fix, see if its still under warranty. It may be and you can send it in for repair. Otherwise, I don’t know much about monitors, but check your connections, shake it a little, and maybe leave it unplugged for 2 minutes and see what happens when you plug it back in and turn it on.