Setting48Key lockSecurity (Key lock and PIN code lock settings)This function allows you to use Key lock and PINcode lock function to set the security for the projectoroperation.This function locks operation of the top control orthe remote control.It is useful to prevent operation by an unauthorizedperson.. . . . . . not locked.. . . . . . lock the operation of the topcontrol. To unlock, use theremote control.. . . . . . lock the operation of theremote control. To unlock,use the top control.If the top control accidentally becomes locked andyou do not have the romote control or there issomething wrong with your remote control, contactthe dealer where you purchased the projector or theservice center.Key lockSelect Key lock. Chooseone of the alternatives withthe Point ed buttons andselect [Yes] to activate it.PIN code lockThis function prevents the projector from beingoperated by an unauthorized person and providesthe following settings for security options.Off . . . . . the projector is not locked with aPIN code.On1 . . . . require to enter a PIN code every timeturning on the projector.On . . . . require to enter a PIN code to operatethe projector once the power cordis disconnected; as long as the ACpower cord is connected, the projectorcan be operated without a PIN code.Whenever to change the PIN code lock settingor the PIN code (the four-digit number), you arerequired to enter the PIN code. The "134" is set asthe initial PIN code at the factory.When the projector is lockedwith the PIN code, the PINcode lock mark appears on themenu bar.PIN code lock