Black screen. Not turning on

[Tammymillan]

My only register is not turning on. I tried unplugging it and plugging it back in . Even checked the breaker panel to see if it was a breaker that was knocked off. Nothing… i need help! Anybody has had a issue with their register not turning on

[rcmck]

ok, you can try taking the cable from the back of the printer and going directly into the terminal bypassing the other cable and see if it starts like that. Not to ask a dumb question but there are two buttons on the back, they are pressing and holding for several seconds the right one? (concave one) 

[Tammymillan]

They are pressing the power button on. I know there is also a house button. For home screen i believe