InFocus IN3924 User manual

1
Declaration of Conformity
Manufacturer: InFocus Corporation, 13190 SW 68th Parkway, Suite 200, Portland, Oregon
97223-8368 USA
We declare under our sole responsibility that this projector conforms to the following
directives and norms:
ErP Directive 2009/125/EC
EMC Directive 2004/108/EC
EMC: EN 55024:2010, EN 55022:2010, EN 61000-3-2:2006+A1:2009+A2:2009, 
EN 61000-3-3:2008
Low Voltage Directive 2006/95/EC
Safety: IEC 60950-1: 2005;EN 60950-1:2006 +A11:2009
R&TTE Directive: 1999/5/EC
ETSI: EN 300 440, EN 301 489
The receiver portion of this product is a Category III device, as specified in EN 300 440.
Trademarks
Apple, 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. DLP®, DLP Link and the DLP logo are
registered trademarks of Texas Instruments and BrilliantColor™ is a trademark of Texas
Instruments. InFocus, In Focus, and INFOCUS (stylized) are either registered trademarks or
trademarks of InFocus Corporation in the United States and other countries.
NOTE:
This product is covered electrical and electronic equipment
under the European Union's Waste from Electrical and Electronic
Equipment ("WEEE") Directive (2002/96/EC). The WEEE Directive
requires that covered equipment be collected and managed
separately from typical household waste in all EU member states.
Please follow the guidance of your local environmental authority or
ask the shop where you purchased the product for collection or
recycling options.
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation between the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by InFocus Corporation may
void authority to operate the equipment.
Canada
This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la
classe B est conforme à la norme NMB-003 du Canada.
This device complies with RSS-210 of the Industry Canada Rules.
Operation is subject to the following two conditions:
1) this device may not cause interference and
2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Ce dispositif est conforme à la norme CNR-210 d'Industrie Canada applicable aux appareils
radio exempts de licence. Son fonctionnement est sujet aux deux conditions suivantes:
(1) le dispositif ne doit pas produire de brouillage préjudiciable, et
(2) ce dispositif doit accepter tout brouillage reçu, y compris un brouillage susceptible de
provoquer un fonctionnement indésirable.

2
Agency Approvals
cULus
Other specific Country Approvals may apply. Please see product certification label.
This document applies to regulatory model IN3924/IN3926.
Input ratings: 100-240Vac, 3.2A, 50-60Hz
InFocus reserves the right to alter product offerings and specifications at any time without
notice.

3
Table of Contents
Introduction 5
Positioning the projector 7
Connecting a computer source 8
VGA connection 8
HDMI connection 8
Connecting power 8
Optional computer connections 8
Displaying an image 9
Adjusting the image 10
Connecting a video device 11
Video device connections 11
Composite video connection 11
VGA connection 11
Component video connection 11
S-video connection 11
Shutting down the projector 12
Troubleshooting your setup 12
Using the remote control 20
Using the audio 21
Using the keypad buttons 22
Optimizing computer images 23
Presentation features 23
Optimizing video images 24
Customizing the projector 24
Using the menus
25
Basic Menu 26
Advanced Menu 27
Controlling the projector through a LAN environment 31
Controlling the projector remotely through a web browser 32
Displaying images through ifPresenter 36
Displaying pictures with a USB storage device 39
LiteBoard™ Wand 41
Charging the Wand’s Battery 41
How to Use the Wand 41
Wand Position and Avoiding Shadows 41
Using More than One Wand 42
Wand Features 42
Buttons and Wand Tip 42
Troubleshooting LiteBoard 43
Maintenance 45
Cleaning the lens 45
Using the security lock 45
Replacing the projection lamp 46

4
Important Operating Considerations for Safety
• Refer to this guide for proper startup and shutdown procedures.
• Follow all warnings and cautions in this manual and on the projector.
• Place the projector in a horizontal position no greater than 15 degrees off
axis.
• Locate the projector at least 4' (1.2m) away from any heating or cooling
vents.
• Do not block ventilation openings. Locate the projector in a well-ventilated
area without obstructions to intake or exhaust vents. Do not place the
projector on a tablecloth or other soft covering that may block the vents.
• Do not place the projector in direct sunlight, humid, greasy or dusty places or
in places where the projector may come into contact with smoke or steam.
• Do not touch or block the projector lens with any objects as this can damage
the projector lens. Scratches, gouges and other lens damage are not covered
by the product warranty.
• Do not look directly into the lens while the projector is being used.
• Do not drop the projector.
• Do not spill liquid on the projector. Spilled liquid may damage the projector.
• Use the power cord provided. Connect the power cord to a receptacle with
a protective safety (earth) ground terminal. A surge-protected power strip is
recommended.
• Do not overload wall outlets.
• When disconnecting the power cord, hold the plug, not the cord.
• Wash hands after handling the cables supplied with this product.
• The projector remote control uses batteries. Make sure the batteries’
polarity (+/-) is aligned correctly. Dispose of used batteries in accordance
with local disposal laws.
• Use an InFocus approved ceiling mount kit for proper fitting, ventilation and
installation. The warranty does not cover any damage caused by use of non-
approved ceiling mount kits or by installing in an improper location.
• When the projector is ceiling mounted, wear protective eyewear to prevent
eye injury before opening lamp door.
• Refer all service to qualified service personnel. Servicing your own projector
can be dangerous to you and will void the warranty.
• Only use replacement parts specified by InFocus. Unauthorized substitutions
may result in fire, electrical shock, or injury, and may void the warranty
• Only genuine InFocus lamps are tested for use in this projector. Use of non
InFocus lamps may cause electrical shock and fire, and may void the projector
warranty.
• Hg – Lamp contains mercury. Manage in accordance with local
disposal laws. See w
www.lamprecycle.org
.
• The projector uses a high-pressure mercury glass lamp. The lamp may fail
prematurely, or it may rupture with a popping sound if jolted, scratched, or
handled while hot. The risk of lamp failure or rupture also increases as the
lamp age increases; please replace the lamp when you see the “Replace Lamp”
message.
• In the unlikely event of a lamp rupture, particles may exit through the
projector vents. Keep people, food, and drinks out of the "keep out" area
under and around the projector, as indicated by the "X" areas below.
• Follow these instructions to help ensure image quality and lamp life over the
life of the projector. Failure to follow these instructions may affect the
warranty. For complete details of the warranty, see the Warranty/Safety
booklet.
5’/1.5m
8’/2.4m
3’ / 1 m
3’ / 1 m
2’ / 0.6 m

5
Introduction
Your new digital projector is simple to connect, easy to use, and straightforward
to maintain. It is a versatile projector that is flexible enough for business
presentations and home video viewing too. IN3924 has native XGA 1024 x 768
resolution, and IN3926 has native WXGA 1280 x 800 resolution. It is compatible
with a wide variety of computers and video devices.
Product specifications
To read the latest specifications on your multimedia projector, be sure to visit our
website at w
www.infocus.com
, as specifications are subject to change.
Accessories
The standard accessories that came with your projector are listed in the included
Quick Start documentation. Optional accessories can be found on our website at
www.infocus.com/support
or at your retailer or dealer.
Online registration
Register your projector on our website at w
www.infocus.com/register
to activate
your warranty and receive product updates, announcements, and registration
incentives.
lens
remote control
receiver (IR)
keypad
connector
panel
power cord
connector
focus
remote control
receiver (IR)

6
Connector panel
The projector provides both computer and video connection options, including:
•HDMI
• VGA computer (2)
•S-video
• Composite video
• Monitor out (for external monitors)
• Audio inputs (1 RCA; 2 3.5mm)
• Audio output
• Microphone input
• USB A (2 - for JPEG presentations from a USB flash drive and for connecting a
mouse, keyboard or wireless adapter)
• USB mini B (for presentation slide and LiteBoard Wand control)
• USB B (for firmware upgrades)
• LAN (RJ45 for network control and video over LAN)
• 12 volt DC output (for screen trigger)
• RS232 (Serial command codes available at www.infocus.com/support)
RS 232
computer
composite video
audio out
USB type A
S-video
security lock
HDMI USB type B
LANaudio in
monitor out
USB mini B
microphone in 12V DC output

7
Positioning the projector
To 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 guidelines:
• Position the projector on a flat surface at a right angle to the screen. IN3924
must be at least 45” (1.0m) from the projection screen, and IN3926 must be
at least 51” (1.3m) from the projection screen.
• If you are installing the projector on the ceiling, we strongly recommend using
InFocus approved ceiling mounts for proper fitting, ventilation and installation.
Refer to the installation guide that comes with the InFocus Ceiling Mount Kit
(p/n PRJ-MNT-UNIV) for more information. The warranty does not cover
any damage caused by use of non-approved ceiling mount kits or by installing
in an improper location. To turn the image upside down, see “Ceiling mount”
on page 28. We recommend using an InFocus authorized ceiling mount.
• Position the projector the desired distance from the screen. The distance
from the lens of the projector to the screen and the video format determine
the size of the projected image.
• The image offset for IN3924 is 115% +/-5%. This means that if you have an
image 60 inches (1.5 meters) tall from a table-mounted projector, the bottom
of the image will be 9 inches (22.9 cm) above the centerline of the lens. The
image offset for IN3926 is 113% +/-5%. This means that if you have an image
60 inches (1.5 meters) tall from a table-mounted projector, the bottom of the
image will be 7.8 inches (19.8 cm) above the centerline of the lens.
60” image
(height)
bottom of image 9”
above center of
lens
Projection angle
lens center
T
Table 1: IN3924 (XGA) Screen size
Diagonal Screen Size
(inches/m)
Size of the Projected
Image Width
(inches/m)
Distance to screen
(inches/m)
50”/1.3m 40”/1.0m 19”/0.5m
60”/1.5m 48”/1.2m 23”/0.6m
70”/1.8m 56”/1.4m 27”/0.7m
80”/2.0m 64”/1.6m 31”/0.8m
100”/2.5m 80”/2.0m 38”/1.0m
Table 2: IN3926 (WXGA) Screen size
Diagonal Screen Size
(inches/m)
Size of the Projected
Image Width
(inches/m)
Distance to screen
(inches/m)
60”/1.5m 51”/1.3m 19”/0.5m
70”/1.8m 59”/1.5m 22”/0.6m
90”/2.3m 76”/1.9m 29”/0.7m
100”/2.5m 85”/2.2m 32”/0.8m
120”/3.1m 102”/2.6m 38”/1.0m

8
Connecting a computer source
VGA connection
Connect one end of the provided computer cable to the C
Computer 1/Computer 2
connector on the projector and the other to the VGA connector on your
computer. If you are using a desktop computer, you will need to disconnect the
monitor cable from the computer’s video port first.
HDMI connection
HDMI is a standard, uncompressed, all-digital audio/video interface. HDMI
provides an interface between sources, such as set-top boxes, DVD players, and
receivers and your projector. Plug an HDMI cable into the video-out connector on
the video device and into the HDMI connector on the projector.
Connecting power
Connect the black power cord to the P
Power
connector on the rear of the
projector and to your electrical outlet. If the Power Saving Mode feature is off, the
Power LED on the Status Indicator Panel (page 12) blinks orange. If the Power
Saving Mode feature is on, the Power LED is steady orange. By default, this feature
is off. You can change the setting, see page 29.
.NOTE
: Always use the power cord
that shipped with the projector.
Optional computer connections
To get sound from the projector, connect an audio cable (optional cable, not
included) to your computer and to the A
Audio in
connector on the projector. You
may also need an adapter.
If you are using a desktop computer and want to see the image on your computer
screen as well as on the projection screen, connect to the desktop’s computer
cable to Computer 1 and the desktop’s monitor cable to the
Monitor out
connector on the projector.
connect VGA cable
connect HDMI
connect power
connect audio cable

9
Displaying an image
Press the P
Power
button.
The Power LED lights orange, and the fans start to run. When the lamp comes on,
the start up screen displays. It can take up to a minute for the image to achieve full
brightness.
No start up screen?
Get help on page 13.
Turn on your computer or video device.
The image should appear on the projection screen. If it doesn’t, press the S
Source
button on the projector’s keypad or remote.
If you are using a VGA cable to connect your computer to the projector:
If using a laptop, make sure its 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 + F8 or CRT/LCD key
turns the external display on and off. Locate a function key labeled CRT/LCD or a
function key with a monitor symbol. Press FN and the labeled function key
simultaneously.
Refer to your laptop's documentation for more information about your laptop's
key combination.
No laptop image?
Try pressing the A
Auto
button on the projector’s keypad or
Auto Image
button on the remote. Get help on page 13.
turn on computer or
video device
activate laptop’s external port
monitor key or
LCD/CRT key
FN key
press Power button

10
Adjusting the image
If necessary, adjust the height of the projector by pressing the elevator foot release
button to extend the foot.
If necessary, rotate the leveling feet located at the rear of the projector.
Position the projector the desired distance from the screen at a 90 degree angle to
the screen.
See page 7 for a table listing screen sizes and distances.
Adjust the focus.
If the image is not square, first make sure that the projector is perpendicular to the
screen. If the image is larger or smaller on the top or bottom edge of the screen,
press the top K
Keystone
button to reduce the upper part of the image, and press
the bottom K
Keystone
button to reduce the lower part.
If the left or right side of the screen is larger or smaller the other, you can turn the
projector to the left or to the right a few degrees to square the image.
Adjust the Contrast or Brightness in the Basic Menu. See page 26 for help with
these menu adjustments.
adjust distance
adjust focus
adjust keystone
adjust Basic Menu Aspect Ratio
Auto Image
Brightness
Contrast
Auto Keystone
Keystone
Presets
Sharpness
Volume
Microphone Volume
Ceiling Mount
Advanced Menu
◄ Auto ►
Execute
50
50
Off
50
Presentation
50
50
5
Off
(Basic Menu ) MDL: IN3924
FW: 1.02
adjust height
elevator foot release button leveling feet