Knoll Systems HD225 - Manual (Page 6)

6
A 3.5mm mini-jack trigger provides 12-
volt current. This provides a constant
output while the projector is on. For
example, if you connect your projection
screen to the trigger, when you turn on
the projector the screen will move down;
when you turn the projector off, the
screen will return to the storage position.
You must turn the trigger on in the
System menu, see page 21.
Positioning the projector
There are a number of factors to consider when determining where to set up
the projector, including the size and
shape of your screen, the location of
your power outlets, and the distance
between the projector and the rest of
your equipment. Here are some
general guidelines.
1 Position the projector on a flat
surface at a right angle to the screen.
The projector must be within 10 feet
(3 m) of your power source. To
ensure adequate cable access, place
the projector at least six inches
(0.15m) from a wall or other objects.
Place the projector at least 5.6 feet
(1.7 m) from the projection screen.
If you install the projector on the
ceiling, refer to the installation guide
that comes with the Ceiling Mount Kit
for more information. To turn
the image upside down, see page 21.
Knoll recommends use of an
authorized Knoll ceiling mount. The
Ceiling Mount Kit is sold separately.
2 Position the projector the desired
distance from the screen.
The distance from the lens of the projector to the screen, the zoom setting, and the video format
determines the size of the projected image. For more information about projected image sizes,
see page 26.
The image exits the projector at a given angle. This image offset is 105%. This means that if you
have an image 10’ high, the bottom of the image will be 0.5’ above the center of the lens.
Go to www.knollsystems.com/lcd225.htm for more information.