Operation Manual

3. Multimedia interface
After connection of an
USB device or SD card
the projector displays the
menu of the multimedia
interface (Picture 4).
4. Focus adjustment and Keystone correction
FOCUS
Place the projector so that the lens is in a perpendicular position in relation
to the wall or projection screen. Then, turn on the device and turn the focus
knob so that the image is bright and sharp (Picture 6.).
KEYSTONE CORRECTION
Keystone effect occurs when the position of the projector is incorrect (both
vertically and horizontally) in relation to the projection surface. Keystone
correction technology allows you to correct distorted images using optical
and digital features. When you tilt the projector over 5 degrees the
picture may be distorted lenticular.
Before after
Solution
Turn the Keystone correction
knob in order to correct the
distorted image. The correction
angle ranges ± 15°.
Before after
Solution
No solutio
n for this kind of
image distortion in case of this
projector.