note
To cancel the Operation Lock function from the projector, press the Enter button for about seven seconds.
3.Press Enter. Then use the up and down arrow buttons and the Enter button to set the following options:
■Keystone
Adjusts a distorted image from a trapezoid shape to rectangular.
■Auto Keystone (PowerLite 77c only)
Automatically adjusts a distorted image from a trapezoid shape to rectangular when the projector’s foot is extended or retracted. (Not available when you’re projecting from the ceiling or using rear projection.) Select ON or OFF.
■Zoom (PowerLite S5 Series only)
Adjusts the image size from Wide (larger) to Tele (smaller).
■Operation Lock
When turned on, this function disables all projector buttons, or all buttons except the PPower button. Changes to this setting take effect after you restart the projector. (After you turn off the projector, wait for the Ppower light to turn a steady orange before turning it on again.) See page 71 for more information.
■Brightness Control
Select Low lamp brightness when the projection is too bright for the room. The Low setting also reduces electricity consumption and fan noise. Select High to project the maximum brightness. (Also check the Brightness setting in the Image menu; see page 56.)
■Volume
Adjusts the volume for the projector’s speaker.
4.When you’re finished, press Esc or Menu.
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