To access, turn on the projector
Following the Dell logo display,
with no video cable attached,
the display will show
No Signal - check video cable
Press the up button twice
and then the minus button
At this point the display will
show something similar to this

 Ver 0.5 2002.02.27
   Lamp Hours 25
  Display Hours 25

   Display Source
    Brun In Test
   DMD Bin Setting
Color Wheel Index 616
   Green Offset -1
    Factory Reset
        Exit