Sanyo PLC-XP57L Owner's Manual page 44

SETTING
Lamp counter
This function is used to reset the Lamp replacement counter. When
replacing the projection lamp, reset the Lamp replacement counter
with this function. See page 49 for operation.
Factory default
This function returns all setting values except for the User logo,
Key lock, PIN code lock, Logo PIN code lock, and the Lamp counter
to the factory default settings.
Quit
Exit the SETTING Menu.
44
Factory default
Select Factory default and this box
appears. Select [Yes], and the next
box appears.
Select [Yes] to
activate it.