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1. Twist the rings on the projector to adjust the focus 1 and zoom 2, as shown
below.
2. Use the Keystone buttons on the projector or the remote to correct
image-trapezoid (wider top or bottom) effect.
The keystone control appears on the On Screen Display (OSD), as shown.
Adjusting the volume
To adjust the volume, do the following:
1. Press the Volume +/- buttons on the projector or the remote control. The
volume control appears on the OSD.
2. Use the Volume +/- buttons shown below to adjust the level.
3. Press the Mute button (on the remote control only) to turn off the volume.
4. Press any Volume +/- buttons on the projector or remote control to turn off
mute.
2-6 C400 Wireless Projector: User’s Guide