NEC LCD monitor power failure

[Ella]

Our NEC LCD monitor for about 3 years switches to on and off power. After my husband check the cable it went up again. The ff day it was out of power. I tried to turn it on last night and it's up again. What could be wrong with it?

 

[enzo matrix]

System triple posted this post. Respond here:
http://www.tomshardware.com/forum/280802-28-monitor-power-failure