Epson EX21 - Manual (Page 49)

Fine-Tuning the Projector 49
Customizing Projector Features
You can use the Settings menu to lock the buttons on the projector,
adjust audio volume, and customize several other features.
■ Keystone
Adjusts the shape of the image if the projector has been tilted
upward or downward. If you notice that lines or edge look jagged
after adjustment, decrease the
Sharpness setting (see page 45).
■ Zoom
Adjusts the image size from Wide (larger) to Tele (smaller).
■ Control Panel Lock
Lets you disable all of the buttons on the projector, or all of the
buttons except the Ppower button. See page 55 for more
information.
■ Brightness Control
Lets you select from two levels of brightness. The Low setting
reduces power consumption and projector noise, and extends the
lamp’s operating life.
■ Volume
Raises or lowers the volume of the projector’s speaker.