InFocus Projector Learn Big Xs1 User Manual

							Positioning your projector 11 InFocus has provided a table of 4:3-aspect-ratio screen sizes to assist you in 
determining the ideal location for your projector. There are two dimensions to 
consider, the perpendicular horizontal distance from the center of the screen 
(projection distance), and the vertical offset height of the projector from the 
horizontal edge of the screen (offset).
How to determine the position of the projector 
for a given screen size
1. Select your screen size.
2. Refer to the table and find the closest match to your screen size in the left 
columns labelled 4:3 screen diagonal. Using this value, look across this row 
to the right to find the corresponding average distance from screen value in 
the column labelled Recommended projection distance from screen in mm. 
This is the projection distance.
3. On that same row, look across to the right column and make note of the 
Vertical offset value. This will determine the final vertical offset placement of 
the projector in relation to the edge of the screen.
4. The recommended position for the projector is aligned perpendicular to the 
horizontal center of the screen, at the distance from the screen determined in 
step 2 above, and offset by the value determined in step 3 above.
For example, if you are using a 108 inch screen, the recommended projection 
distance is 1459 mm and with a vertical offset of 165 mm.
If you place the projector in a different position (to that recommended), you will 
have to tilt it down or up to center the image on the screen. In these situations, 
some image distortion will occur. Use the Keystone function to correct the 
distortion. See Correcting keystone on page 30 for details.
How to determine the recommended screen size 
for a given distance
This method can be used for situations where you have purchased this projector 
and would like to know what screen size will fit in your room.
The maximum screen size is limited by the physical space available in your room. 
1. Measure the distance between the projector and where you want to position 
the screen. This is the projection distance.
2. Refer to the table and find the closest match to your measurement in the 
average distance from screen column labelled Recommended projection 
distance from screen in mm. 
3. Using this value, look across that row to the left to find the corresponding 
screen diagonal listed in that row. That is the projected image size of the 
projector at that projection distance.
4. On that same row, look across to the right column and make note of the 
Vertical offset value. This will determine the final placement of the screen in 
relation to the horizontal plane of the projector. 
For example, if your measured projection distance was 1.5 m (1500 mm), the 
closest match in the Recommended projection distance from screen in mm 
column is 1459 mm. Looking across this row shows that a 9 (108) screen is 
required. If you can only obtain metric sized screens, the screen size is 2743 mm 
diagonally.  
						

							Positioning your projector 12
There is 3% tolerance among these numbers due to optical component variations. InFocus 
recommends that if you intend to permanently install the projector, you should physically test 
the projection size and distance using the actual projector in situ before you permanently 
install it, so as to make allowance for this projectors optical characteristics. This will help you 
determine the exact mounting position so that it best suits your installation location.
4:3 screen diagonalRecommended projection distance 
from screen in mmVertical offset in 
mm
FeetInchesmm1692 900 101
6 72 1829 973 110
2000 1064 120
7 84 2134 1135 128
8 96 2438 1297 146
2500 1330 150
9 108 2743 1459 165
3000 1596 180
3007 1600 180
4:3 Screen Diagonal
Projection distanceCenter of lens Screen
Offset 
						

							Connection 13
Connection
When connecting a signal source to the projector, be sure to:
1. Turn all equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted. 
In the connections shown below, some cables may not be included with the projector (see 
Shipping contents on page 4). They are commercially available from electronics stores.
Connecting a computer or monitor
Connecting a computer
The projector provides a VGA and DVI input sockets that allow you to connect it to 
both IBM® compatibles and Macintosh® computers. A Mac adapter (an optional 
accessory) is needed if you are connecting legacy version Macintosh computers.
To connect the projector to a notebook or desktop computer 
(either through a VGA cable or VGA to DVI-A cable):  
• With a VGA cable: • With a VGA to DVI-A cable:
1. Take the supplied VGA cable 
and connect one end to the D-
Sub output socket of the 
computer.
2. Connect the other end of the 
VGA cable to the D-SUB/COMP. 
IN signal input socket on the 
projector. 1. Take a VGA to DVI-A cable and 
connect the VGA end to the D-
Sub output socket of the 
computer.
2. Connect the DVI end of the VGA 
to DVI-A cable to the DVI signal 
input socket on the projector. 
3. If you wish to make use of the projector (mixed mono) speaker in your 
presentations, take a suitable audio cable and connect one end of the 
cable to the audio output socket of the computer, and the other end to the 
AUDIO socket of the projector. 
Once connected, the audio can be controlled by the projector On-Screen 
Display (OSD) menus. See Audio Settings on page 48 for details. 
						

							Connection 14The final connection path should be like that shown in the following diagram:
Many notebooks do not turn on their external video ports when connected to a projector. 
Usually a key combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a 
function key labeled CRT/LCD or a function key with a monitor symbol on the notebook. Press 
FN and the labeled function key simultaneously. Refer to your notebooks documentation to 
find your notebooks key combination.
Notebook or 
desktop 
computer
oriiiiii i. VGA cable
ii. VGA to DVI-A 
cable
iii. Audio cable 
						

							Connection 15
Connecting a monitor
If you want to view your presentation close-up on a monitor as well as on the 
screen, you can connect the D-SUB OUT signal output socket on the projector to 
an external monitor with a VGA or VGA to DVI-A cable by following the instructions 
below.
To connect the projector to a monitor (either through a VGA cable 
or VGA to DVI-A cable):
The final connection path should be like that shown in the following diagram:• With a VGA cable: • With a VGA to DVI-A cable:
Note: Your monitor must be equipped with 
a DVI input socket.
1. Connect the projector to a computer as described in Connecting a 
computer on page 13.
The D-SUB output only works when an appropriate D-SUB input is made 
to the projector. Be sure the projector is connecting with the computer 
using the D-SUB/COMP. IN socket, not the DVI socket.
2. Take a suitable VGA cable (only 
one supplied) and connect one 
end of the cable to the D-Sub 
input socket of the video 
monitor.
3. Connect the other end of the 
cable to the D-SUB OUT socket 
on the projector.2. Take a VGA to DVI-A cable and 
connect the DVI end of the cable 
to the DVI input socket of the 
video monitor.
3. Connect the VGA end of the 
cable to the D-SUB OUT socket 
on the projector.
Notebook or desktop computer
(VGA) (DVI)
iiiiiii. VGA to DVI-A 
cable
ii. VGA cable
iii. VGA cable 
						

							Connection 16
Connecting Video source devices
This section describes how to connect the projector to Video source devices using 
video cables. Video cable connections are recommended for Video presentations. 
You can connect your projector to various Video source devices that provide any 
one of the following output sockets:
•DVI
• Component Video
• S-Video
• Video (composite)
You need only connect the projector to a Video source device using just one of the 
above connecting methods, however each provides a different level of video 
quality. The method you choose will most likely depend upon the availability of 
matching terminals on both the projector and the Video source device as described 
below:
Best video quality
The best available video connection method is DVI. If your source device is 
equipped with a DVI socket, based on the type of DVI connector you have, you can 
enjoy digital or high-end analog video quality.
See Connecting a DVI source device on page 17 for how to connect the projector 
to a DVI source device and other details.
If no DVI source is available, the next best video signal is Component Video (not to 
be confused with composite Video). Digital TV tuners and DVD players output 
Component Video natively, so if available on your devices, they should be your 
connection method of choice in preference to S-Video or (composite) Video.
See Connecting a Component Video source device on page 19 for how to 
connect the projector to a component video device.
Better video quality
The S-Video method provides a better quality analog video than standard 
composite Video. If you have both composite Video and S-Video output terminals 
on your Video source device, you should elect to use the S-Video option.
See Connecting an S-Video source device on page 20 for how to connect the 
projector to an S-Video device.
Least video quality
Composite Video is an analog video and will result in a perfectly acceptable, but 
less than optimal result from your projector, being the least video quality of the 
available methods described here.
See Connecting a composite Video source device on page 21 for how to connect 
the projector to a composite Video device.
Connecting audio
The projector has a built-in mono speaker which is designed to provide basic audio 
functionality accompanying data presentations for business purposes only. It is not 
designed for, nor intended for stereo audio reproduction use as might be expected 
in home theatre or home cinema applications. Any stereo audio input (if provided), 
is mixed into a common mono audio output through the projector speaker.  
						

							Connection 17
Connecting a DVI source device
The projector provides a DVI input socket that allows you to connect it to a DVI 
source device like a DVD player, or a VGA output device like a notebook or desktop 
computer.
There are three types of DVI connectors: DVI-A, DVI-D, and DVI-I. The DVI-I 
socket is an integrated connector which supports both formats: DVI-A, and DVI-D. 
DVI-A format is used to carry a DVI signal to an analog (VGA) display, or vice-
versa. Although some signal quality is lost from the signal conversion, it still 
transmits higher picture quality than a standard VGA connection. 
DVI-D format is used to directly carry a digital signal to a digital display without 
signal conversion. The pure digital connection provides faster and higher image 
quality than an analog connection, due to the nature of the digital format. 
DVI-A and DVI-D formats are non-interchangeable. You cannot connect a DVI-A 
format connector to DVI-D equipment and visa-versa. Make sure you know which 
kind of format your equipment is fitted with before you purchase any cables. Or you 
can purchase a DVI-I cable which will be more useful in any type of DVI connection 
situation.
Examine your source device to determine if it has an unused DVI output socket 
available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the 
device.
To connect the projector to a DVI source device or a computer:
For information on connecting a DVI source device to a computer through a VGA to DVI-A 
cable, see Connecting a computer on page 13. 
1. Take a DVI (DVI-D or DVI-I) cable and connect one end to the DVI output 
socket of the DVI source device.
2. Connect the other end of the cable to the DVI signal input socket on the 
projector. 
3. If you wish to make use the projector (mixed mono) speaker, take a suitable 
audio cable and connect one end of the cable to the audio output sockets of 
the video device, and the other end to the AUDIO socket of the projector.
Once connected, the audio can be controlled by the projector On-Screen 
Display (OSD) menus. See Audio Settings on page 48 for details. 
						

							Connection 18The final connection path should be like that shown in the following diagram:
In the unlikely event that you connect the projector to a DVD player via the projector’s DVI-D 
input and the projected picture displays wrong colors, please change the color space to YUV. 
See Changing Color Space on page 28 for details.
DVI-D or 
DVI-I cableAudio 
cable
AV device 
						

							Connection 19
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused 
Component Video output sockets available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the 
device.
To connect the projector to a Component Video source device:
1. Take a Component Video to VGA (D-Sub) adaptor cable and connect the end 
with 3 RCA type connectors to the Component Video output sockets of the 
Video source device. Match the color of the plugs to the color of the sockets; 
green to green, blue to blue; and red to red.
2. Connect the other end of the Component Video to VGA (D-Sub) adaptor cable 
(with a D-Sub type connector) to the D-SUB/COMP. IN socket on the 
projector.
3. If you wish to make use the projector (mixed mono) speaker, take a suitable 
audio cable and connect one end of the cable to the audio output sockets of 
the video device, and the other end to the AUDIO socket of the projector.
Once connected, the audio can be controlled by the projector On-Screen 
Display (OSD) menus. See Audio Settings on page 48 for details.
The final connection path should be like that shown in the following diagram:
• The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 16 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
Audio cable
AV device
Component Video to 
VGA (D-Sub) adaptor 
cable 
						

							Connection 20
Connecting an S-Video source device
Examine your Video source device to determine if it has an unused S-Video output 
socket available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the 
device.
To connect the projector to an S-Video source device:
1. Take an S-Video cable and connect one end to the S-Video output socket of 
the Video source device.
2. Connect the other end of the S-Video cable to the S-VIDEO socket on the 
projector.
3. If you wish to make use the projector (mixed mono) speaker, take a suitable 
audio cable and connect one end of the cable to the audio output sockets of 
the video device, and the other end to the AUDIO socket of the projector.
Once connected, the audio can be controlled by the projector On-Screen 
Display (OSD) menus. See Audio Settings on page 48 for details.
The final connection path should be like that shown in the following diagram:
• The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 16 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
• If you have already made a Component Video connection between the projector and this 
S-Video source device using Component Video connections, you need not connect to this 
device using an S-Video connection as this makes an unnecessary second connection of 
poorer picture quality. See Connecting Video source devices on page 16 for details.
A/V device
Audio cable S-Video cable