InFocus LP840 Projector User Manual

							LP
®840/
LP
®850 
INSTALLATION & INTEGRATION PROJECTOR.
USER’S GUIDE
LP
®840/
LP
®850 
INSTALLATION & INTEGRATION PROJECTOR.
InFocus Corporation
27700B SW Parkway Avenue 
Wilsonville, Oregon 97070-9215
1-800-294-6400 
•503-685-8888
Fax : 503-685-8887
http://www.infocus.com
In Europe:
InFocus International BV
Strawinskylaan 585
1077 XX Amsterdam
The Netherlands 
Phone: +31 20 579 2000
Fax: +31 20 579 2999
In Asia : 
238A Thomson Road
#18-01/04 Novena Square
Singapore 307684
Telephone: (65) 6334-9005
Fax : (65) 6333-4525
USER’S GUIDE
6442LP840_UG.qxd  10/10/03  9:22 AM  Page 2 
						

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Declaration of ConformityManufacturer: InFocus Corporation, 27700B SW Parkway Ave. Wilsonville, Oregon 
97070 USA
European Office: Strawinskylaan 585, 1077 XX Amsterdam, The Netherlands
We declare under our sole responsibility that this projector conform to the following 
directives and norms:
EMC Directive 89/336/EEC, Amended by 93/68/EEC
EMC: EN 55022
           EN 55024
 EN 61000-3-2
 EN 61000-3-3
Low Voltage Directive 73/23/EEC, Amended by 93/68/EEC
Safety: EN 60950: 2000 
October, 2003TrademarksApple, Macintosh, and PowerBook are trademarks or registered trademarks of Apple 
Computer, Inc. IBM is a trademark or registered trademark of International Business 
Machines, Inc. Microsoft, PowerPoint, and Windows are trademarks or registered 
trademarks of Microsoft Corporation. Adobe and Acrobat are trademarks or 
registered trademarks of Adobe Systems Incorporated. InFocus, ProjectorManager, 
ProjectorNet, and LP are trademarks or registered trademarks of InFocus 
Corporation. FCC WarningThis equipment has been tested and found to comply with the limits for a Class A 
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful interference when the equipment is 
operated in a commercial environment. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance with the 
instruction manual, may cause harmful interference to radio communications. 
Operation of this equipment in a residential area is likely to cause harmful 
interference in which case the user will be required to correct the interference at his 
own expense.EN 50222 WarningThis is a Class A product.  In a domestic environment it may cause radio interference, 
in which case the user may be required to take adequate measures.  The typical use is 
in a conference room, meeting room or auditorium.
CanadaThis Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.Agency ApprovalsUL, CUL, NOM, IRAM, GOST, C-tick
Other specific Country Approvals may apply, see please product certification label. Remote Control WarningLaser radiation class II product; wavelength 650nm; maximum output 1mW. Remote 
control complies with applicable requirements of 21 CFR 1040.10 and 1040.11. Remote 
control complies with applicable requirements of EN 60 825-1: 1994 +A11.
INTEGRATOR
Do not look into laser beam emitted from the front of the remote control
Location of laser beam warning labels on remote 
						

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Table of Contents
Introduction 5
Positioning the projector  7
Connecting a computer  8
Required computer connections  8
Displaying a computer image  10
First-time projector use with Windows 98  11
Adjusting the image  13
Connecting a video device  14
Displaying a video image  16
Shutting down the projector  18
Troubleshooting your setup  18
Using the keypad buttons  26
Using the remote control  27
Using the audio  28
Optimizing computer images  29
Presentation features  29
Optimizing video images  30
Customizing the projector  30
Using the menus  31
Picture menu  32
Settings menu  35
Maintenance 39
Cleaning the lens  39
Changing the lens  39
Replacing the projection lamp  40
Cleaning the dust filter  42
Using the security lock  42
Appendix 43
Projected image size  43
LED Behavior  46
RS-232 commands  47If you are experienced in setting up presentation systems, use the included 
Quick Set Up card. For complete details on connecting and operating the 
projector, refer to this User ’s Guide. Electronic versions of this User ’s Guide 
in multiple languages are available on the included CD and on our website.
The website also has technical specifications (an interactive image size cal-
culator, laptop activation commands, connector pin outs, a glossary, the 
product data sheet), a web store to buy accessories, and a page for online 
registration. See the inside of the back cover for a list of all contact numbers 
and relevant web addresses.
Important Operating Considerations
Do not place the projector on a tablecloth or other soft covering that may 
block the vents. Vents are placed along the back, left and front sides of the 
projector.
 Do not use a non-approved ceiling mount. In the unlikely event of 
the lamp rupturing, discard any edible items placed in the surrounding area 
and thoroughly clean the area along the sides and in the front of the projec-
tor.
2 ft (.6m)2 ft (.6m)
2 ft (.6m) Do not place objects in the areas along the left, back and front sides of the projector 
						

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IntroductionYour new multimedia projector provides three computer, three video, and 
two audio inputs, one audio output, RS-232 control, and has XGA 1024x768 
resolution. Optional user-changeable short, fixed short, long and super long 
throw lenses make this a flexible product suitable for many different uses. 
The projector is easy to connect, easy to use, and easy to maintain. Product specificationsTo read the latest specifications on your multimedia projector, be sure to 
visit our website. Web address information is located on the back inside 
cover of this User ’s Guide.AccessoriesThe standard accessories that came with your projector can be found on the 
packing list that came with your projector. Optional accessories are listed in 
the Accessories catalog that came with the projector and can also found on 
our website. See the inside back cover for the web address.Online RegistrationRegister your projector on our website to receive product updates, 
announcements, and registration incentives. See the inside back cover for 
the web address.
Projector components and features: front
Projector components and features: back
keypad
speakers
lens
 
elevator foot releaseremote
control
receiver (IR)elevator foot releaseair intake
ventheat vent
connectorsback 
foot
air intake
vent
air intake
venthandle 
						

							6 Connector Panel
The projector provides three computer and three video connection options: 
 one M1-D (DVI with USB)
 one VESA computer
 one BNC (RGBHV and Pr, Pb, Y)
 one component RCA video (Pr, Pb, Y)
 one S-video
 one composite RCA video
The projector provides computer and video connectors for audio support:
 
 two composite RCA stereo audio (L, R)
 one audio out
 two audio ins for computer
The projector also provides the following connectors:
 one wired remote
 one monitor out 
 RS-232 serial connector (for serial control)
 RJ-45 connector (for networked control via ProjectorNet software)
The RS-232 Command Line Interface (CLI) specifications and commands 
are available on our website. See the back inside cover of this User ’s Guide 
for website information.
 lock
power
connector M1-D computermonitor
s-video composite computer
audio
external
speakers
(audio out)RJ-45 VESA computercomponent video
video
power switch BNCRS232 
serial control
wired
remote
remote
control
receiver (IR
) 
						

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Positioning the projectorTo determine where to position the projector, consider 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 guide-
lines:
 Position the projector on a flat surface at a right angle to the screen. The 
projector (with the standard lens) must be at least 3 feet (0.9m) from the 
projection screen.
 Position the projector within 10 feet (3m) of your power source and 
within 6 feet (1.8m) of your video device (unless you purchase exten-
sion cables). To ensure adequate cable access, do not place the projector 
within 6 inches (.15m) of a wall or other object.
 If you are installing 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 “Ceiling” on page 35. We recom-
mends using an authorized ceiling mount. The Ceiling Mount Kit is 
sold separately; see the Accessories catalog that came with this projec-
tor or visit our website for more information.
 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 determine the size of the projected image. For information 
about image sizes at different distances, see “Projected image size” on 
page 43.
 For the standard lens that comes with the projector, the image exits at a 
given angle. However, the lens shift feature makes the image offset 
variable. The image offset is 100% at a 10:0 ratio when the projector is in 
4:3 mode (default mode). This means that if you have an image 10’ 
high, all 10’ will appear above the center of the lens. 
 This image offset is 50% when the lens shift is at a 1:1 ratio. This means 
that if you have an image 10’ high, the bottom of the image will be 5’ 
below the center of the lens. 
 For information about the optional lenses image offsets, see “Projected 
image size” on page 43.
bottom of image
100% above lens10 ft high
imageProjection angle in 4:3 mode (default)
lens center10:0
1:1
center
bottom of image
50% below lens 
center10:0
1:0 
						

							8
Connecting a computerRequired computer connectionsConnect one end of the VESA computer cable to the Computer 2 connector 
on the projector. Connect the other end to the video port on your computer. 
If you are using a desktop computer, you first need to disconnect the moni-
tor cable from the computer ’s video port. 
Connect the black power cable to the connector on the back of the projector 
and to your electrical outlet.
NOTE: Always use the power cable that shipped with the projector. Optional computer connectionsTo control your computer ’s mouse using the projector ’s remote control, con-
nect the USB and DVI cables to the USB and DVI ports on your computer, 
and connect the other end to the Computer 1 (M1-D) connector on the pro-
jector. USB drivers must be installed to use the USB feature. For more infor-
mation, see page 12.
If your projector cannot receive the remote’s signal due to IR interference, 
you can connect directly to the projector via a remote cable. To do so, plug 
the remote cable into the wired remote connector on the projector. Plug the 
other end into the connector on the remote,
.
To have sound with your presentation, connect the audio cable to your com-
puter and to the corresponding computer Audio In connector on the projec-
tor. 
connect computer cable connect power cableconnect M1-D cableconnect wired remoteconnect audio cable 
						

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If you are using a desktop computer and want to see the image on your 
computer screen as well as on the projection screen, plug the monitor cable 
to the Monitor out connector on the projector. 
You can also connect to your computer using a BNC cable. Connect the BNC 
connectors on the BNC cable to the appropriate Computer 3 connectors on 
the projector. Connect the other end to the video port on your computer. If 
you are using a desktop computer, you first need to disconnect the monitor 
cable from the computer ’s video port. When all 5 BNCs are connected, the 
projector handles separate synchs on H and V. 
You can control the projector from an LCD control panel, touch screen, or 
other control device or computer by connecting an RS-232 cable to the pro-
jector ’s Serial connector. Specific RS-232 commands can be found in the Ser-
vice and Support section of our website and in this User ’s Guide’s 
Appendix.
The projector can be managed by ProjectorNet networking software 
through its Network (RJ-45) connector. Contact an authorized dealer or 
visit our website for information on ProjectorNet.
connect monitor cableconnect BNC cables
HV
RG Bconnect RS-232 cable
Network
connect CAT-5 cable  
						

							10
Displaying a computer image Remove the lens cap.
Press the power switch on the back of the projector to the on position, then 
press the Pow e r button on the top of the projector or the remote.
The LED flashes green and the fans start to run. When the lamp comes on, 
the startup screen is displayed and the LED is steady green. It can take a 
minute for the image to achieve full brightness. 
? No startup screen? Get help on page 19. 
Turn on your computer.
The computer ’s image should appear on the projection screen. If it doesn’t, 
press the Computer button on the projector ’s keypad. 
Make sure your laptop’s external video port is active. 
Many laptops do not automatically turn on their external video port when a 
projector is connected. Usually a key combination like FN + F5 is used to 
turn the external display on and off. Refer to your computer ’s documenta-
tion to learn your computer ’s key combination. 
? No computer image? Try pressing the Auto Image 
button on the keypad. Get help on page 19. 
remove lens cap
1 2
press Power switch press Power button
I
O
turn on computeractivate laptop’s external port