If you got your new PlayBook tablet and want to know how to put your tablet in Standby mode or Turn Off /Restart it then follow the given guide below.
Enter or Exit Standby mode
Press the power button at the top of the tablet
To exit from Standby or Wakeup your tablet, swipe from top frame to the bottom frame, read more about PlayBook frame gestures.
Turn Off BlackBerry PlayBook
To Turn-Off PlayBook tablet, press and hold the power button and tap the on screen Turn Off button.
Restart BlackBerry PlayBook
To Restart PlayBook tablet, press and hold the power button and then tap the Restart button on the screen.