Ask Proxima C60 User Manual

Ask Proxima Projectors

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Copyright © 1997-2004 InFocus Corporation.

All Rights Reserved.

ASK C20 and C60 Projectors
Frequently Asked Questions: Installation

Can I mount the product on the ceiling?

Yes. You use a ceiling mount kit, available from your ASK Proxima reseller. You'll probably also want to run video, audio and

RS-232 cables to the projector, as well as a power cable. Many of these items are also available from your ASK Proxima

reseller. Most people arrange to have a professional installer mount the projector on the ceiling and run the cables.

Do I have to buy an ASK Proxima ceiling mount? I see that other companies offer mounts for less money. Can't I

just build my own mount?

We strongly suggest that you use an ASK Proxima-approved ceiling mount with your projector. There are two basic reasons
for this.

First, our mounts are designed for a specific projector. They are built so they do not interfere with air circulation in and out of

the projector. This is an important because when you install a projector on the ceiling, you are installing it in the warmest

part of the room. Our mounts are made to bear the weight of the projector. We don't have any 'one-size-fits-all' mounts. We
use heavy-gauge steel and sturdy fasteners.

Second, should anything happen to your projector due to a non-approved ceiling mount, your warranty will not pay for

repairs.

What is the projection ratio (throw ratio) for the product?

Both models have a horizontal throw ratio of 1.48 to 1.92. The two numbers represent the largest and smallest zoom
settings. The horizontal throw ratio is based on the horizontal measurement of the projected image.

How do I use the throw ratio to determine throw distance or image size?

The horizontal throw ratio equals the throw distance divided by the image width. TR = TD / W. Let's say that you want to

figure out how far back to place the LP290 to achieve a 60" wide image. For the widest zoom setting, the formula would be,

1.48 = TD / 60", or TD = 60" x 1.48 = 88.8 inches (about 7.4 feet).

For the widest zoom setting, the formula is 1.92 = TD / 60", or TD = 1.92 x 60 = 115.2 inches (about 9.6 feet). In other
words, you need to place the projector 7.4 to 9.6 feet from the screen to get a 60" wide image.

You can use the same formula to determine what size an image you get when you know what the throw distance is. In this

case, W (image width) = TD (throw distance) / TR (throw ratio). Let's say that you know the projector will be located 12 feet

from the screen. For the widest zoom setting, the formula is W = 144" / 1.48 = 97.3 inches. For the smallest zoom setting,
the formula is W = 144" / 1.92 = 75 inches. Thus, if the LP290 is 12 feet (144") from the screen, the resulting image size

will be 75" to 97.3" wide.

ASK Proxima has created a calculator that automatically provides you with throw distances and image sizes (including

horizontal, diagonal and vertical sizes). It is available on the ASK Proxima Website.

Can the product be mounted on the wall?

Yes, as long as it mounted either upside down or right side up. The projector cannot be mounted sideways. ASK Proxima
does not sell a wall mount for this projector.

Can the image be flipped upside down or reversed?

Yes. When you mount the projector on the ceiling, you must flip the image so it appears right side up on the screen. To flip

the image, press the Menu button on the keypad. Navigate to Setup > System, and select the Ceiling option. Press the

Source/Select button to enable the Ceiling option.

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