How not to go screen black

How do I stop my screen from going from gray to black after about 60 seconds?
Thanks for help

If you are not actively using the pad, it turns itself off, called autolock.  It goes in stages, first sort of grey, then off.  The time can be set under setting, general, autolock.  The shortest time is 2 min, and goes up from there. This is part of the power saving scheme.  Look there, and see if that is what is happening.  If you are actively using an app, it will not turn off.  If you are using an audio app, like the i pod app, the screen will turn off but the audio will continue.

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