InFocus LP 420 User manual

i
TABLE OF CONTENTS
Safety Summary iii
Introduction 1
Image Resolution 1
Compatibility 1
Unpacking the Projector 1
Usage Guidelines 3
If You Need Assistance 4
Warranty 4
Setting up the Projector 5
Connecting an IBM-Compatible Computer 7
Connecting a Macintosh Computer 8
Connecting a Video Player 9
Powering up the Projector and Adjusting the Image 11
Turning Off the Projector 12
Using the Projector 13
Basic Image Adjustment 13
Adjusting the Projector 13
Using the Keypad Buttons 15
Using the On-Screen Menus 16
Display Menu Functions 17
Audio Menu Functions 19
Image Menu Functions 20
Controls Menu Functions 22
Maintenance & Troubleshooting 25
Cleaning the Lens 25
Replacing the Projection Lamp 25
Using the Kensington Lock 28
Troubleshooting 29

ii
Table of Contents
Appendix 33
Specifications 33
Accessories 35
Portable and Laptop Activation Chart 37
Using Video Mirroring with a PowerBook Computer 42
Projected Image Size 43
Index 45

iii
SAFETY SUMMARY
Please read these instructions carefully before using your LP 420.
Failure to comply with them could result in fire, electrical shock,
personal injury or damage to equipment.
These graphics are used throughout this manual to draw your
attention to important information about the projectors.
NOTE: Additional useful details or tips.
CAUTION: Steps to take to avoid damage to your equipment.
WARNING: Steps to take to avoid personal injury.
These graphics are used on the projector’s labels.
Attention - Refer to this User’s Guide for important
safety information.
CAUTION-Hot Surfaces - Avoid touching hot surfaces.
Do not touch until the projector has cooled.
Do Not Look Into The Lens!
Be extremely careful not to look into the projection lens when the projec-
tor is turned on. The bright light may harm your eyes. Be especially care-
ful to keep children from looking into the lens.
Power Source
Use only a three-wire grounding type power source. The power source
should not exceed 275 volts rms between the supply conductors or
between either conductor and the ground.
Power Cord
Use only the power cord that was shipped with the projector. Although
other power cords might be similar in appearance, they have not been
safety-tested with the projector. Do not use a power cord if it has become
damaged or frayed. Contact your In Focus dealer or call In Focus if you
need to replace your power cord.

iv
Safety Summary
Grounding
The projector is grounded through the grounding conductor on the
power cord. To avoid electric shock, plug the power cord into a properly
wired receptacle. Do not defeat the purpose of the grounding-type plug.
Lamp
To avoid overheating and unacceptable image quality, replace the projec-
tion lamp with a lamp of the specified type. Refer to page 33 for lamp
specifications and to page 25 for instructions on replacing the lamp.
Lamp Compartment
To avoid burns, do not open the lamp module door until the projector is
turned off and the lamp has cooled for at least 30 minutes. Follow the
instructions in this manual for lamp replacement carefully.
Hot Surfaces
Allow the projector to cool at least 30 minutes before replacing a lamp.
When you open the lamp housing, be very careful not to touch the hot
surfaces inside.
Ventilation and Overheating
Openings in the projector case provide ventilation to protect it from
overheating. Keep loose papers and other objects well away from the
grills. Do not place the projector on top of or close to a computer or other
heat-producing equipment.
Liquid Spills
Do not set drinks on top of the projector. Spilled liquids can flow inside
and cause damage.
NOTE: If you open the projector
case, you will void the warranty.
Do Not Disassemble
All service must be performed by an authorized In Focus service center.
The only user-serviceable part in the projector is the projection lamp,
which you can replace by opening the lamp cover on the side of the pro-
jector (see page 25). Do not open any other part of the projector. If your
projector needs repair, call your local Authorized Service Provider or In
Focus Technical Support as described on page 4. Before you call, refer to
“Troubleshooting” starting on page 29 to see if you can resolve the prob-
lem yourself.

1
INTRODUCTION
The In Focus LP 420™ is specifically designed for the mobile pre-
senter. It packs SVGA graphics with 16.7 million colors into a
small, 6.8 pound package. It generates crisp, clear images using
Digital Light Processing™ (DLP) technology. The LP 420 is easy
to connect, easy to use, and easy to maintain.
NOTE: The 420 automatically
expands 640x480 images to
800x600. You can display these
images at 640x480 by turning off
the Auto Resize feature. See “Auto
Resize” on page 20 for more infor-
mation.
Image Resolution
The SVGA resolution of the 420’s projected image is 800x600.
Screen resolutions between 800x600 and 1024x768 are com-
pressed to 800x600. The 420 cannot compress screen resolutions
above 1024x768. If your computer’s screen resolution is higher
than 1024x768, reset it to a lower resolution before you connect
the 420.
Compatibility
The projector is compatible with a wide variety of computers and
video devices, including:
•IBM-compatible computers, including laptops, up to 1024x768
resolution.
•Apple Macintosh and PowerBook computers up to 1024x768
resolution.
•Most standard VCRs, camcorders and laser disc players.
Unpacking the Projector
NOTE: The 420 ships standard
with computer and audio cables. If
you want mouse control of your
computer, you must order the
optional CableWizard and remote.
The projector comes with the items shown in Figure 1. Check to
make sure all are included. Contact your In Focus dealer imme-
diately if anything is missing.
If you are experienced in setting up presentation systems, use the
LP 420 Quick Start card that was included in the shipping box. For
complete details on connecting and operating the projector, refer
to this User’s Guide. User’s Guides are also available for down-
load from our website at www.infocus.com.

2
Introduction
NOTE: The contents of your
shipping box may vary depending
on the projector configuration
you’ve ordered.
FIGURE 1
Shipping box contents
1. LP 420 projector 5. RCA audio/video (A/V) cable
2. Soft carry case 6. Audio cable
3. LP 420 User’s Guide and
Online User Guide CD 7. Macintosh adaptor
4. power cord 8. CableWizard Lite cable
9. Lens cap
1
2
3
4
5
6
7
8
9

3
FIGURE 2
Side view of projector
Usage Guidelines
Do not look directly into the projection lens when the projector is
turned on. The bright light may harm your eyes.
Do not block the grills on the projector. Restricting the air flow can
cause it to overheat and turn off. If this happens, you must wait a minute
before attempting to turn it back on.
Handle the projector as you would any product with glass compo-
nents. Be especially careful not to drop it.
Avoid leaving the projector in direct sunlight or extreme cold for
extended periods of time. If this happens, allow it to reach room temper-
ature before use.
This projector is not intended for use in mainframe computer
rooms as defined in the Standard for the Protection of Electronic Com-
puter/Data Processing Equipment, ANSI/NFPA 75.
Transport the projector in a vendor-approved hard or soft case.
Part numbers for these cases are listed on page 35.
connector panel
speaker
focus ring
elevator button
power
cord
connector
keypad

4
Introduction
If You Need Assistance
The first place to look for help is in this manual. Be sure to check
the guidelines in “Troubleshooting” on page 29.
If this manual doesn’t answer your question, call your In Focus
dealer. You can also call In Focus Customer Service directly at
1-800-799-9911. Call between 5 a.m. and 5 p.m. PST, Monday
through Friday. In Europe, call In Focus in The Netherlands at
(31) 23-5540310. In Singapore, call (65) 740-6435. Or, send us an
e-mail at [e-mail]
Our World Wide Web address is http://www.infocus.com.
Warranty
This product is backed by a limited one-year warranty. The
details of the warranty are printed at the back of this manual.
Longer term warranties can be purchased from your In Focus
dealer. Refer to page 36 for part numbers.

5
SETTING UP THE PROJECTOR
1Place the projector on a flat surface.
•The projector must be within 10 feet (3 m) of your power
source and within 6 feet (1.8 m) of your computer.
•If you want to project from behind a translucent screen, set
up the projector behind your screen. See “Rear Projection”
on page 23 to reverse the image.
2Position the projector the desired distance from the screen.
•The distance from the lens of the projector to the screen
determines the size of the projected image. Figure 3 shows
three projected image sizes. For more information about
image size, see “Projected Image Size” on page 43.
3Make sure the projector and your computer are turned off.
FIGURE 3
Projected image size
4.3ft.
21.3ft.
8.5ft.
5 ft.10 ft. 25 ft.

6
Setting up the Projector
NOTE: Before you continue,
make sure the projector and your
equipment are turned off. If you’re
connecting a computer, make sure
the distance between it and the
projector is 6 feet or less.
FIGURE 4
Connector panel
CableWizard
s-video composite
video
L/R audio in
audio in
computer
Lite
(for video source)

7
Connecting an IBM-Compatible Computer
1Plug the end of the CableWizard Lite computer cable into
the video connector on your computer.
NOTE: Many laptop computers
do not automatically turn on their
external video port when a sec-
ondary display device such as a
projector is connected. Refer to
your computer manual for the
command that activates the exter-
nal video port. Activation com-
mands for some laptop computers
are listed in the Appendix of this
manual on page 37.
2Plug the end of the CableWizard Lite computer cable
into the connector on the projector.
FIGURE 5
Connecting the computer cable to an IBM-compatible computer
NOTE: If you are connecting a
desktop computer and want to
view your presentation on your
monitor, purchase the optional
CableWizard.
Do you want to play your computer’s audio on the projector?
1Plug either end of the audio cable into the audio connector on
your computer.
2Plug the other end of the audio cable into the connector
on the projector.
NOTE: If you want mouse control,
purchase the optional CableWiz-
ard and remote.
CableWizard Lite cable
audio cable

8
Setting up the Projector
Connecting a Macintosh Computer
NOTE: Some PowerBooks require
the Apple-supplied video-out cable
or monitor adapter for external
video. Connect it between the
PowerBook and the CableWizard
Lite computer cable/Mac adaptor
as shown in Figure 6.
1Plug the end of the CableWizard Lite computer cable into
the In Focus-supplied Mac adaptor.
2Plug the CableWizard Lite/Mac adaptor into the video con-
nector on your computer (or the Apple video-out cable or
monitor adapter, if needed).
3Plug the end of the CableWizard Lite computer cable
into the connector on the projector.
4If you want the projector display to be the same as the Power-
Book’s screen display, turn on video mirroring (called
SimulScan in newer PowerBooks). See “Using Video Mirror-
ing with a PowerBook Computer” on page 42 for additional
information.
NOTE: If you are connecting a
desktop computer and want to
view your presentation on your
monitor, purchase the optional
CableWizard.
FIGURE 6
Connecting the CableWizard Lite computer cable to a Macintosh
NOTE: If you want mouse control,
purchase the optional
CableWizard and remote.
Do you want to play your computer’s audio on the projector?
1Plug either end of the audio cable into the audio connector on
your computer.
2Plug the other end of the audio cable into the connector
on the projector.
PowerBook
video-out cabl
e
audio cable
CableWizard Lite cable
Mac adaptor or monitor
adaptor

9
Connecting a Video Player
1If your video player uses a round, one-prong composite video
connector, you’ll need only the A/V cable that shipped with
the projector.
•If your video player uses a round, four-prong S-video con-
nector, you’ll need an S-video cable in addition to the A/V
cable. The S-video cable is sold separately. (See “Accesso-
ries” on page 35.)
2Plug the A/V cable’s yellow connector into the “video-out”
port on your video player (Figure 7). This port may be labeled
“To Monitor.”
•If you’re using an S-video cable, connect it to the “s-video
out” connector on the video player (Figure 8).
3Plug the other yellow connector into the composite connector
on the back of the projector.
•If you’re using S-video, plug the other end of the cable into
the “s-video” connector on the projector (Figure 8).
FIGURE 7
Connecting the projector to a video player using the standard A/V cable (with composite
video connector)
audio/video cable

10
Setting up the Projector
F
IGURE 8
Connecting the projector to a video player using an S-video cable and the audio con-
nectors on the standard A/V cable
4Plug the A/V cable’s white connector into the left “audio out”
port on your video player. Plug the cable’s red connector into
the right “audio out” port on the video player (Figure 7 and
Figure 8).
CAUTION: Your video player
may also have a “Video Out” port
for a coaxial cable connection.
DO NOT use this to connect to the
projector.
•If you’re using an S-video cable, the yellow connectors on
the A/V cable remain unused (Figure 8).
5Plug the A/V cable’s other white and red connectors to the
left and right “audio in” ports on the projector.
The projector is compatible with these major broadcast video
standards: NTSC, NTSC 4.43, PAL, PAL-M, PAL-N, and SECAM.
It automatically adjusts to optimize its performance for the
incoming video. The input signals for SECAM, PAL-M, and
PAL-N video are similar to other video signals and cannot be
automatically detected, therefore they must be chosen manually.
See “Video Standard” on page 22 for details.
A/V cable
S-video cable

11
Powering up the Projector and Adjusting the Image
NOTE: Always use the power cord
that shipped with the projector.
1Remove the lens cap.
2Plug the power cord into the side of the projector, then plug it
into your electrical outlet. A surge-protected power strip is
recommended if power surges are common in your area.
3Turn on the projector.
•The In Focus startup screen displays and the Power LED on
top of the projector lights.
4If you connected a video player, turn it on.
•The video image should display on the projection screen. If
a computer source is active, press the source button on the
keypad (page 15) to display your video image. You can
select a default source to determine which source the pro-
jector examines first during power-up for active video; see
“Default Source” on page 23.
•Use the volume buttons to adjust the volume.
5Turn on your computer.
•The computer image should display on the projection
screen. (If a video source is active, press thesource button to
display your computer’s image.)
NOTE: With some computers,
the order in which you power up
the equipment is very important.
Most computers should be turned
on last, after all other peripherals
have been turned on. Refer to your
computer’s documentation to
determine the correct order.
•If necessary, make adjustments to the image from the pro-
jector’s on-screen menus. To open the menus, press the
menu button on the keypad, then select the Display or
Image menu. For more information about the menus, see
page 16.

12
Setting up the Projector
Turning Off the Projector
If you want to turn off the projector for a short period of time,
press the standby button on the keypad. This blanks the screen for
fifteen minutes, but keeps the projector running. After 15 min-
utes, the lamp goes out (the projector keeps running). To exit
standby mode, press the standby button again. (It takes several
seconds for the projection lamp to reach full power and project
the image again.)
To completely power off the projector, press the “O” side of the
power switch on the side of the projector. If you want to turn the
projector back on immediately, you must allow about a minute
for the lamp to cool. The lamp won’t light if it’s too hot.
CAUTION: When you
disconnect the projector after you
have switched it off, always
remove the power cord from the
electrical outlet first, then remove
it from the projector.

13
USING THE PROJECTOR
This section describes how to use and make adjustments to the
projector. It also provides a reference to the keypad buttons and
the options available from the on-screen menus.
NOTE: In Focus has created a
software program called In Focus
Presents that automatically opti-
mizes your computer’s display
when used with any In Focus pro-
jector. This free program is
included with every projector and
available for download from our
website at www.infocus.com.
Basic Image Adjustment
1Make sure you have powered up your equipment in the right
order (page 11).
2If the image doesn’t display completely, adjust the height of
the projector (page 14) or center the image by adjusting its
horizontal or vertical position (page 21). Be sure the projector
is at a 90 degree angle to the screen.
3If the image is out of focus, rotate the focus lens (page 13).
4If the image appears to shimmer or if it has blurry vertical
bars after you have adjusted the focus, turn Auto Image
(page 20) off and then back on to reset the automatic sync and
tracking. If that doesn’t clear up the image, turn Auto Image
off adjust the sync (page 21) and/or the tracking (page 21)
manually.
5If the colors don’t look right, adjust the brightness (page 17).
Adjusting the Projector
To focus the image, rotate the focus ring (Figure 9) until the image
is clear.
FIGURE 9
Focus ring and elevator button
focus ring elevator button

14
Using the Projector
The projector is equipped with a self-locking, quick-release eleva-
tor foot and button (Figure 10).
To raise the projector:
1Press and hold the elevator button (Figure 9).
2Raise the projector to the height you want, then release the
button to lock the elevator foot into position.
FIGURE 10
Adjusting the height of the projector
To lower the projector:
1Press the elevator button.
2Lower the projector.

15
Using the Keypad Buttons
The keypad is lit orange when the projector is on and lit green
while the menus are displayed. While the menus are displayed,
the volume, source, and standby buttons act as navigation but-
tons. See “Using the On-Screen Menus” on page 16 for details.
FIGURE 11
Keypad
Menu
Press menu to open the on-screen menus (the keypad lights
green). Press menu again to close the menus. When you close the
menus, the projector saves any changes you made. For more
information about the on-screen menus, see page 16.
NOTE: LiteShow Pro is an
optional presentation player. Con-
tact your In Focus dealer for more
information.
Source
When you have more than one source (computer or LiteShow Pro
and video) connected to the projector, select between them by
pressing the button.
Standby
When you press standby, the display and audio turn off and a
blank screen is displayed for 15 minutes.
•If you press standby again within 15 minutes, the projector
returns to normal operations immediately.
•If you press standby again after 15 minutes, there is about a
30 second delay before the lamp turns back on.
•If you don’t press standby again, the lamp turns off after 15
minutes.
power LED
left/right mouse buttons

16
Using the Projector
Volume
•To increase the volume, press
•To decrease the volume, press
Volume adjustments are saved for each source you have con-
nected.
Using the On-Screen Menus
The projector has four on-screen menus that allow you to make
image adjustments and change a variety of settings. Most of these
adjustments aren’t available directly from the keypad.
To open the on-screen menus, press the menu button on the key-
pad. This changes the volume, source, and standby buttons on
the keypad to menu navigation buttons (and illuminates the key-
pad green). Press the corresponding buttons to move the cursor
up, down, left, or right. To select a menu, use these buttons to
move the cursor to the tab for the menu you want, then click
either mouse button. To change a menu setting, move the cursor
to the setting you want to change using the navigation buttons,
then use one of the two mouse buttons to make changes. Press
menu again when you want to close the menus. All changes are
saved when you close the menus.
The status bar at the top of the menu display indicates the source
that is currently active (Computer or Video) and any peripherals
that are connected. It also contains a lamp hour counter that
starts at zero hours and counts each hour the lamp is in use.
Change the bulb when the brightness is no longer acceptable. See
“Replacing the Projection Lamp” on page 25 for details.
FIGURE 12
On-screen menu status bar