Google Nexus 7 (2013) — Cannot fully power off Nexus 7 2013 no root

Anybody knows how one can fully power off Nexus 7 2013? After pushing POWER button I see only one option on the screen: 'Power Off". Tapping on it makes device shut down but next it would start up on it's own without my interference. I wonder is there a way to make it shut down completely or I miss something. I am about to do a replacement work and I am hesitant to open it with it's power on.