Runco X-200i User Manual

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Runco X-200i Series Installation/Operation Manual
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Folded Optics
In rear-screen applications where space behind the projector is limited, a mirror may be 
used to fold the optical path, as shown in Figure 3-6. 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 3-6. Folded Optics
Other Considerations
Other considerations and tips that can help improve your installation:
• Keep the ambient temperature constant and below 35°C (95°F). Keep the projector 
away from heating and/or air conditioning vents. Changes in temperature may cause 
drifts in the projector circuitry, which may affect performance.
• Keep the projector away from devices that radiate electromagnetic energy such as 
motors and transformers. Common sources of these include slide projectors, 
speakers, power amplifiers and elevators.
For best performance, always use “first-surface” mirrors in your 
rear-projection installation (as opposed to conventional, 
“second-surface” mirrors with the reflective surface behind a 
transparent substrate such as glass or acrylic). 
First-surface mirrors provide a strict reflection without the 
“ghosting” effect seen with a second surface mirror, where a faint 
secondary reflection could be observed coming from the front 
surface of the glass. 
This is especially critical for 3D viewing; with a conventional 
second-surface mirror, the resulting image quality may be 
unacceptable. 
 
Screen
Mirror
Tip