Monitor randomly shuts off

[QueBert]

27" Crossover, not sure the model #, bought it off Ebay last year. Some days it doesn't happen, others it'll happen 4 or 5 times. When I turn it back on it works for a random amount of time. I Googled this and didn't find much helpful. I'm guessing it might be the PSU in it acting up, but I don't know much about LCD's.

 

[Burpo]

Turn your brightness down and see if it does it again.