Runco Vx 44d Projector User Manual

Installation
Runco VX-44d/-55d Owner’s Operating Manual 19 
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3.3 
Installation 
Considerations
Proper installation of your projector will ensure the quality of your display. Whether you are 
installing a projector temporarily or permanently, you should take the following into 
account to ensure your projector performs optimally.
Installation TypeChoose the installation type that best suits your needs: front or rear screen, floor mount or 
inverted mount. 
Table 3-2 compares these various...

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Throw DistanceThrow distance is the distance measured from the front of the projector to the screen. 
This is an important calculation in any projector installation as it determines whether or not 
you have enough room to install your projector with a desired screen size and if your 
image will be the right size for your screen.
You can quickly estimate the throw distance by taking the width of the screen and 
multiplying it by the...

Installation
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Vertical and Horizontal 
Position
Proper placement of the projector relative to the screen will yield a rectangular, 
perfectly-centered image that completely fills the screen.
Ideally, the projector should be positioned perpendicular to the screen and in such a way 
that the lens center and screen center are aligned with each other, as shown in 
Figure 3-2.
Figure 3-2. Projector Placement
Vertical and Horizontal 
Lens Shift
If it...

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Figure 3-4. Horizontal Lens Shift
0%Screen Center
100% Width Lens Shift
(1.0 x W)
50% Width Lens Shift 
(0.5 x W) 150% Width Lens Shift
(1.5 x W)
Screen Width (W)
Note: This is a general example of lens shift. Lenses vary in their shift capabilities. No particular 
lens or projector is used in this example. 

Installation
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Table 3-4 lists the lens shift limits for each available VX-44d/-55d lens, as percentages 
and absolute measurements with a 100 x 56 inch (1.78:1) screen.  
Table 3-4. Vertical and Horizontal Lens Shift Limits 
Lens Option
Telesto B, Telesto C or 
Telesto ETelesto D
Lens Shift Limits, as Percentages of Screen Height or Width (Notes 1, 2 and 3)
Vertical
(Notes 2 and 3)Up60%60%
Down60%60%
Horizontal
(Note 2)Left22%20%
Right22%20%
Lens...

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Folded OpticsIn rear screen applications where space behind the projector is limited, a mirror may be 
used to fold the optical path, as shown in 
Figure 3-5. The position of the projector and 
mirror must be accurately set. If you are considering this type of installation, contact your 
dealer for assistance.
Figure 3-5. Folded Optics
Other ConsiderationsOther considerations and tips that can help improve your installation:
 Keep...

Installation
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3.4 
Installing the 
Projection Lens
The projection lens is shipped separately from the projector. Proceed as follows to install 
the projection lens:
1. Remove the lens plug from the lens opening in the projector.
2. Place the lens cap on the projection lens to protect it from being damaged during the 
installation process. 
3. Remove the rear cap from the lens. This protective cap is only used during shipping to 
protect the lens...

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3.5 
Installing the Optional 
CineWide Lens Mount
If you are installing a VX-44d/-55d with the optional CineWide or CineWide with 
AutoScope system, proceed as follows to install the anamorphic lens mounting assembly 
(stationary base plate or AutoScope lens motor). 
Remove Projector Front 
Feet (CineWide with 
AutoScope)
(Skip this step if you are installing a fixed CineWide anamorphic lens.) 
Place the projector upside down on a...

Installation
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Install Projector Stand 
(CineWide with 
AutoScope, Floor-Mount)
(Skip this step if you are installing a fixed CineWide anamorphic lens, or 
ceiling-mounting an AutoScope-equipped projector.) 
If you are installing the VX-44d/-55d in an upright position (not ceiling-mounted), use the 
supplied hardware to attach the projector stand to the bottom of the projector as shown 
below. This stand allows the projector to lie flat on the...

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3.6 
Mounting the 
VX-44d/-55d
There are several methods for mounting the projector. Depending on your chosen 
installation, one method may be more suitable than another. 
Floor Mounting (Upright)In typical front and rear screen installations, the projector can be mounted to a secure and 
level surface such as a table or cart. Carts are useful when moving a projector during a 
presentation or from site to site. If possible, lock the...