Sanyo PLC-XU83 Owner's Manual page 54

Setting
Fan
This function provides the following alternatives in the
cooling fans' operation after turning off the projector. (p22)
L1 . . . . . . .normal operation
L2 . . . . .slower and lower-sound than the normal
operation (L1), but it takes longer to cool the
projector down.
Lamp counter
This function is used to reset the lamp replacement
counter. When replacing the projection lamp, reset the
lamp replacement counter by using this function. See page
59 for operation.
Factory default
This function returns all setting values except for the user
logo, PIN code lock, Logo PIN code lock and the lamp
counter to the factory default settings.
Quit
Exit the Setting Menu.
54
Factory default
Select Factory default and
this box will appear.
Select [Yes] , and the next
box will appear.
Select [Yes] to
activate it.