NEC NP4001 - Manual (Page 94)

5. Using On-Screen Display
82
Lamp Interval
Lamp Interval determines the period of time after which the lamp should be swap when
lamp select is not Dual.
Select from the following:
Off, 1 week, 4 week and 2000H
Menu Mode
Select the Menu Mode to display.
Select from the following:
Basic Menu – Displays menus with minimum essential options. This setting is best
suited to novices.
Advanced Menu – Displays menus with all available options. This setting is best suited
to experienced operators.