Adjust the Dim Screen Timer
1.
Press the Guide button.
2.
Scroll to System and press the A button.
3.
Scroll to Settings and press the A button.
4.
Scroll to Preferences and press the A button.
5.
Scroll to Idle options and press A button.
6.
Scroll to Dim screen after and press the A button.
7.
Scroll to the desired setting and press the A button.