Christie LWU420 User manual

LWU420
User Manual-Operating Guide
020-000262-01

1
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Projector
LWU420 User Manual-Operating Guide
User's Manual (detailed) – Operating Guide
Thank you for purchasing this projector.
►Before using this product, please read the "User's Manual -
Safety Guide" and related manuals to ensure the proper use of this product.
After reading them, store them in a safe place for future reference.
WARNING
• The information in this manual is subject to change without notice.
• The manufacturer assumes no responsibility for any errors that may appear in
this manual.
• The reproduction, transfer or copy of all or any part of this document is not
permitted without express written consent.
NOTE
Trademark acknowledgment
Various symbols are used in this manual. The meanings of these symbols are
described below.
About this manual
WARNING
CAUTION
This symbol indicates information that, if ignored, could possibly
result in personal injury or even death due to incorrect handling.
This symbol indicates information that, if ignored, could possibly
result in personal injury or physical damage due to incorrect
handling.
Please refer to the pages written following this symbol.

• Microsoft and Internet Explorer, Windows, Windows NT, Windows Me, Windows
Vista are registered trademark of Microsoft Corporation.
•
PowerPC is a registered trademark of International Business Machines Corporation.
• VESA and DDC are trademarks of the Video Electronics Standard Association.
• Apple and Macintosh, Mac, Mac OS are registered trademarks of Apple Inc.
• Pentium is a registered trademark of Intel Corporation.
• JavaScript is a registered trademark of Sun Microsystems, Inc.
• DVI is a trademark of Digital Display Working Group.
•
HDMI, the HDMI logo, and High-Definition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing LLC in the United States and other countries.
• Blu-ray Disc is a trademark.
All other trademarks are the properties of their respective owners.

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Contents
Contents
About this manual...........1
Contents . .................2
Projector features...........3
Preparations ...............3
Contents of package .............3
Lens cover attachment and removal
...3
Part names . ...............4
Projector . .....................4
Control panel...................5
Rear panel . ...................5
Remote control . ................6
Setting up . ................7
Arrangement ...................8
Adjusting the projector's elevator . . . 9
Using the security bar and slot . ....9
Connecting your devices.........10
Connecting power supply . .......12
Remote control ............13
Laser pointer ..................13
Installing the batteries ...........13
About the remote control signal . . . 14
Changing the frequency of remote control signal .14
Using as a wired remote control . . . 15
Using as a simple PC mouse & keyboard 15
Power on/off . .............17
Turning on the power . ..........17
Turning off the power . ..........17
Operating . ...............18
Adjusting the volume............18
Temporarily muting the sound.....18
Selecting an input signal .........18
Searching an input signal . .......19
Selecting an aspect ratio.........19
Adjusting the zoom and focus.....20
Adjusting the lens shift . .........20
Using the automatic adjustment feature ..20
Adjusting the position . ..........21
Correcting distortion .............21
Using the magnify feature ........23
Freezing the screen . ...........23
Temporarily blanking the screen . . . 24
PbyP (Picture by Picture) . .......25
Using the menu function . .......26
EASY MENU. . . . . . . . . . . . . . . 27
ASPECT, AUTO KEYSTONE EXECUTE,
KEYSTONE , KEYSTONE
, PERFECT FIT,
PICTURE MODE, BRIGHTNESS, CONTRAST,

(EASY MENU continued . . . . . . . . . 28)
COLOR, TINT, SHARPNESS, WHISPER,
MIRROR, RESET, FILTER TIME,
LANGUAGE, Go to Advanced Menu...
PICTURE Menu . ...........29
BRIGHTNESS, CONTRAST, GAMMA, COLOR TEMP,
COLOR, TINT, SHARPNESS, ACTIVE IRIS, MYMEMORY
IMAGE Menu . .............32
ASPECT, OVER SCAN, V POSITION, H POSITION,
H PHASE, H SIZE, AUTO ADJUST EXECUTE
INPUT Menu . .............34
PROGRESSIVE, VIDEO NR, 3D-YCS,
COLOR SPACE, COMPONENT, VIDEO FORMAT,
HDMI, FRAME LOCK, RGB IN, RESOLUTION
SETUP Menu . .............38
AUTO KEYSTONE
EXECUTE, KEYSTONE ,
KEYSTONE ,PERFECT FIT,WHISPER,
MIRROR, MONITOR OUT
AUDIO Menu . .............41
VOLUME, TREBLE, BASS, SPEAKER,
AUDIO, HDMI AUDIO
SCREEN Menu .............42
LANGUAGE, MENU POSITION, BLANK,
START UP, My Screen, My Screen Lock,
MESSAGE, SOURCE NAME,TEMPLATE
OPTION Menu . ............47
AUTO SEARCH, AUTO KEYSTONE
,
AUTO ON, AUTO OFF, LAMP TIME,
FILTER TIME, MYBUTTON, MYSOURCE,
SERVICE, SECURITY
NETWORK Menu . ..........60
SETUP, PROJECTOR NAME, MYIMAGE,
INFORMATION, SERVICE
C.C. (Closed Caption) Menu ...65
DISPLAY, MODE, CHANNEL
Maintenance ..............66
Lamp ........................66
Air filter . .....................68
Internal clock battery............69
Other care ....................70
Troubleshooting . ..........71
Related messages . ............71
Regarding the indicator lamps . . . . 72
Phenomena that may be easy
to be mistaken for machine defects ..74
Warranty and after-service...77
Specifications .............77


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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Projector features / Preparations
• Keep the original packing materials for future reshipment. Be sure
to use the original packing materials when moving the projector. Use special
caution for the lens.
NOTE
Projector features
Preparations
Contents of package
Please see the “Contents of package” in the “User’s Manual (concise)” which
is a book. Your projector should come with the items shown there. Contact
immediately your dealer if anything is missing.
This projector has a capability to project various picture signals onto a screen. This
projector requires only a minimal amount of space for installation and can produce
a large projected image from even a short distance. Moreover, the projector has the
following features to extend its potentiality for broad use.
The WUXGA (1920x1200) native resolution can support Widescreen PCs
to realize your original images on a screen.
The HDMI port can support various image equipment which have digital
interface to get clearer pictures on a screen.
Lens cover attachment and removal
• Remove lens cover before using the projector.
• Attach the lens cover as shown in the figure when
the projector is not in use.
►If the projector is bumped against
a wall or other object without the lens cover in place,
the projector could malfunction.
WARNING
Lens cover
Lens cover

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Part names
Part names
Projector
(1) Speakers (x 2) (41)
(2) Focus ring (20)
(3) Zoom ring (20)
(4) Lamp cover (66)
The lamp unit is inside.
(5) Lens shift cover (20)
(6) Horizontal lens shift dial (20)
(7) Vertical lens shift dial (20)
(8) Control panel (5)
(9) Lens (70)
(10) Lens cover (3)
(11) Remote sensors (x 3) (14)
(12) Elevator feet (x 2) (9)
(13) Elevator knobs (x 2) (9)
(14) Filter cover (68)
The air filter and intake vent are
inside.
(15) Exhaust vents
(16) Intake vents
(17) Handle
(18) Battery cover (69)
(19) Rear panel (5)
►HOT! : Do not touch around the lamp cover and the exhaust
vents during use or just after use, since it is too hot.
►Do not look into the lens or vents while the lamp is on, since the strong light is
not good for your eyes.
►Do not grab the front cover to hold the projector up, since the projector may
drop down.
►Do not handle the elevator knobs without holding the projector, since the
projector may drop down.
WARNING
►Maintain normal ventilation to prevent the projector from
heating up. Do not cover, block or plug up the vents. Do not place anything that
can stick or be sucked to the vents, around the intake vents. Clean the air filter
periodically.
CAUTION
(2)
(3)
(15)
(12)
(9) (11) (12) (13)
(14)
(11)
(8)
(4)
HOT!
HOT!
(7)
(6)
(5)
(12)
(12)
(13)
(18)
(16)
(8)
(11)
(1)
(1)
(19) (17)
(10)

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Part names
Control panel
(1) STANDBY/ON button (17)
(2)
MENU button (26)
It consists of four cursor buttons.
(3) INPUT button (18)
(4) POWER indicator (17, 72)
(5) TEMP indicator (72)
(6) LAMP indicator (72)
Rear panel
(1) Shutdown switch (74)
(2) Security slot (9)
(3) Security bar (9)
(4) AC IN (AC inlet) (12)
(5) Power switch (17)
(6) RGB1 port (10)
(7)
RGB2(G/Y, B/CB/PB, R/CR/PR, H, V)
port (10)
(8) CONTROL port (10)
(9) HDMI port (10)
(10) VIDEO port (10)
(11) S-VIDEO port (10)
(12)
COMPONENT (Y, CB/PB, CR/PR)
ports (10)
(13) AUDIO IN1 port (10)
(14) AUDIO IN2 port (10)
(15) AUDIO IN3 (R/L) ports (10)
(16) AUDIO IN4 (R/L) ports (10)
(17) RGB OUT port (10)
(18) AUDIO OUT port (10)
(19) REMOTE CONTROL port (10)
(20) LAN port (10)
(21) USB port (10)
(6)
(5)
(4)
(1) (2) (3)
►Do not use the security bar and the security slot to prevent
the projector from falling down, since it is not designed for it.
CAUTION
LAN
AC IN
I O
VIDEO
CONTROL
AUDIO IN1
AUDIO IN2
AUDIO OUT
RGB
OUT
RGB1
RGB2
HDMI
R L R L
AUDIO IN3 AUDIO IN4
CB/PB
Y
CR/PR
B/CB/PBR/CR/PR G/Y
HV
USB
REMOTE
CONTROL
S-VIDEO
(14) (13) (17) (6) (7)(20)(18)(9) (19) (8)
(2)(1)
(10) (11) (15) (16) (12)
(5) (4) (3)
(21)
WARNING
►Use the shutdown switch only when the projector is not
turned off by normal procedure, since pushing this switch stops operation of the
projector without cooling it down.

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Part names
Remote control
(1) Laser pointer (13)
It is a beam outlet.
(2) LASER INDICATOR (13)
(3) LASER button (13)
(4) STANDBY/ON button (17)
(5) VOLUME+/- buttons (18)
(6) MUTE button (18)
(7) VIDEO button (19)
(8) RGB button (18)
(9) SEARCH button (19)
(10) AUTO button (20)
(11) ASPECT button (19)
(12) POSITION button (21)
(13) KEYSTONE button (21)
(14) MY SOURCE/DOC.CAMERA button (19)
(15) MAGNIFY - ON/- OFF buttons (23)
(16) FREEZE button (23)
(17) BLANK button (24)
(18) MY BUTTON - 1 button (49)
(19) MY BUTTON - 2 button (49)
(20) MENU button (26)
(21) Lever switch (26) : acting 3 functions as below.
Cursor button ▲ : to slide toward the side marked ▲.
Cursor button ▼ : to slide toward the side marked ▼.
ENTER button : to push down the center point.
(22) Cursor buttons ◄/► (26)
(23) PbyP button (25)
(24) RESET button (26)
(25) ESC button (26)
(26) Mouse left button (15)
(27) Mouse right button (15)
(28) PAGE UP button (15)
(29) PAGE DOWN button (15)
(30) Wired remote control port (15)
(31) Battery cover (13)
(32) Battery holder (13)
(33) Frequency switch (14)
►Do not look into the beam outlet and
point the beam at people and pets while pressing the
LASER button, since the beam is not good for eyes.
WARNING
►Note that the laser beam may result
in hazardous radiation exposure. Use the laser pointer
only for pointing on the screen.
CAUTION
BLANK LASER
ASPECT
PUSH
ENTER
PAGE UP
LASER
INDICATOR
MY SOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGE DOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MY BUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE
(11)
(22)
(28)
(20)
(25)
(12)
(15)
(16)
(13)
(30)
(27)
(21)
(29)
(24)
(10)
(23)
(18)
(5)
(6)
(19)
(26)
(17)
(4)
(7)
(2) (1)
(3)
(8)
Back of
the remote control
(32)
(33)
(31)
(14)
(9)

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Setting up
Install the projector according to the environment and manner the projector will be
used in.
►Place the projector in a stable horizontal position. If the
projector falls or is knocked over, it could cause injury and/or damage to the
projector. Using a damaged projector could then result in fire and/or electric
shock.
• Do not place the projector on an unstable, slanted or vibrational surface such
as a wobbly or inclined stand.
• Do not place the projector on its side, front or rear position.
• Consult with your dealer before a special installation such as suspending from
a ceiling.
►Place the projector in a cool place, and ensure that there is sufficient
ventilation. The high temperature of the projector could cause fire, burns and/or
malfunction of the projector.
• Do not place or attach anything that would block the lens or vent holes.
• Keep a space of 30 cm or more between the sides of the projector and other
objects such as walls.
• Do not place the projector on metallic thing or anything weak in heat.
• Do not place the projector on carpet, cushions or bedding.
• Do not place the projector in direct sunlight or near hot objects such as heaters.
• Do not place anything near the projector lens or vents, or on top of the
projector.
• Do not place anything that may be sucked into or stick to the vents on the
bottom of the projector. This projector has some intake vents also on the bottom.
►Do not place the projector anyplace where it may get wet. Getting the projector
wet or inserting liquid into the projector could cause fire, electric shock and/or
malfunction of the projector.
• Do not place the projector in a bathroom or the outdoors.
• Do not place anything containing liquid near the projector.
►Do not place the projector where any oils, such as cooking or machine oil, are
used.
WARNING
►Avoid placing the projector in smoky, humid or dusty place.
Placing the projector in such places could cause fire, electric shock and/or
malfunction of the projector.
• Do not place the projector near humidifiers, smoking spaces or a kitchen. Also
do not use an ultrasonic humidifier near the projector. Otherwise chlorine and
minerals contained in tap water are atomized and could be deposited in the
projector causing image degradation or other problems.
►Position the projector to prevent light from directly hitting the projector's remote
sensor.
CAUTION

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Arrangement
Refer to the illustrations and tables below to determine screen size and projection distance.
The values shown in the table are calculated for a full size screen: 1920×1200
(a) Screen size (diagonal)
(b) Projection distance (±10%)
(c) Screen height (±10%), when the vertical lens shift (20) is set full upward.
On a horizontal
surface
Suspended from
the ceiling • Keep a space of 30 cm or more
between the sides of the projector
and other objects such as walls.
• Consult with your dealer before
a special installation such as
suspending from a ceiling.
(c) up
(b)
(a)
(c) down
(b)
(c) up
(c) down
(a)
(a) Screen
size
[inch (m)]
16:10 screen 4:3 screen
(b) Projection distance
[m (inch)]
(c) Screen height
[cm (inch)]
(b) Projection distance
[m (inch)]
(c) Screen height
[cm (inch)]
min. max. down up min. max. down up
30 (0.8) 0.9 (37) 1.9 (75) 0 (0) 40 (16) 1.1 (42) 2.1 (84) 0 (0) 46 (18)
40 (1.0) 1.3 (49) 2.5 (100) 0 (0) 54 (21) 1.4 (56) 2.9 (113) 0 (0) 61 (24)
60 (1.5) 1.9 (75) 3.8 (150) 0 (0) 81 (32) 2.2 (85) 4.3 (170) 0 (0) 91 (36)
70 (1.8) 2.2 (87) 4.4 (175) 0 (0) 94 (37) 2.5 (99) 5.0 (198) 0 (0) 107 (42)
80 (2.0) 2.5 (100) 5.1 (200) 0 (0) 108 (42) 2.9 (113) 5.8 (227) 0 (0) 122 (48)
90 (2.3) 2.9 (113) 5.7 (225) 0 (0) 121 (48) 3.2 (128) 6.5 (255) 0 (0) 137 (54)
100 (2.5) 3.2 (125) 6.4 (250) 0 (0) 135 (53) 3.6 (142) 7.2 (283) 0 (0) 152 (60)
120 (3.0) 3.8 (150) 7.6 (300) 0 (0) 162 (64) 4.3 (170) 8.6 (340) 0 (0) 183 (72)
150 (3.8) 4.8 (188) 9.5 (376) 0 (0) 202 (79) 5.4 (213) 10.8 (426) 0 (0) 229 (90)
200 (5.1) 6.4 (252) 12.7 (501) 0 (0) 269 (106) 7.2 (285) 14.4 (568) 0 (0) 305 (120)
250 (6.4) 8.0 (315) 15.9 (627) 0 (0) 337
(132) 9.1 (356) 18.0 (710) 0 (0) 381 (150)
300 (7.6) 9.6 (378) 19.1 (752) 0 (0) 404 (159) 10.9 (428) 21.6 (852) 0 (0) 457 (180)
350 (8.9) 11.2 (441) 22.3 (878) 0 (0) 471 (185) 12.7 (499) 25.2 (994) 0 (0) 533 (210)

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Adjusting the projector's elevator
When the place to put the projector is slightly uneven to the left or right, use the
elevator feet to place the projector horizontally.
Using the feet can also tilt the projector in order to project at
a suitable angle to the screen, elevating the front side of the
projector within 10 degrees.
This projector has 2 elevator feet and 2 elevator knobs. An elevator foot is
adjustable while pulling up the elevator knob on the same side as it.
1. Holding the projector, pull the elevator knobs up to loose the elevator feet.
2. Position the front side of the projector to the desired height.
3. Release the elevator knobs in order to lock the elevator feet.
4. After making sure that the elevator feet are locked, put the projector down
gently.
5. If necessary, the elevator feet can be manually twisted to make more precise
adjustments. Hold the projector when twisting the feet.
►Do not handle the elevator knobs without holding the projector,
since the projector may drop down.
►Do not tilt the projector other than elevating its front within 10 degrees using
the adjuster feet. A tilt of the projector exceeding the restriction could cause
malfunction or shortening the lifetime of consumables, or the projector itself.
CAUTION
Using the security bar and slot
A commercial anti-theft chain or wire up to 10 mm in diameter
can be attached to the security bar on the projector.
Also this product has the security slot for the Kensington lock.
For details, see the manual of the security tool.
►Do not use the security bar and the
security slot to prevent the projector from falling down,
since it is not designed for it.
WARNING
• The security bar and the security slot are not
comprehensive theft prevention measures. They are intended
to be used as supplemental theft prevention measure.
NOTE
To loose an elevator foot,
pull up the elevator knob
on the same side as it.
To finely adjust, twist
the foot.
10°
Security slot
Anti-theft chain or wire
Security bar

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Connecting your devices
Be sure to read the manuals for devices before connecting them to the projector.
Make sure that all the devices are suitable to be connected with this product, and
prepare the cables required to connect.
Please refer to the following illustrations to connect them.
►Do not disassemble or modify the projector.
►Be careful not to damage the cables, and do not use damaged cables.
WARNING
►Turn off all devices and unplug their power cords prior to
connecting them to projector. Connecting a live device to the projector may
generate extremely loud noises or other abnormalities that may result in
malfunction or damage to the device and the projector.
►Use appropriate accessory or designated cables. Ask your dealer about non-
accessory cables which may be required a specific length or a ferrite core by
the regulations. For cables with a core only at one end, connect the end with the
core to the projector.
►Make sure that devices are connected to the correct ports. An incorrect
connection may result in malfunction or damage to the device and the projector.
CAUTION
VIDEO
CONTROL
AUDIO IN1
AUDIO IN2
AUDIO OUT
RGB
OUT
RGB1
RGB2
HDMI
R L R L
AUDIO IN3 AUDIO IN4
LAN
CB/PB
Y
CR/PR
B/CB/PB R/CR/PR G/Y
H V
USB
REMOTE
CONTROL
S-VIDEO
RGB OUT
AUDIO OUT
RGB OUT
AUDIO OUT
RS-232C
LAN
RGB IN
BLANK LASER
ASPECT
PUSH
ENTER
PAGEUP
LASER
INDICATOR
MYSOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGEDOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MYBUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE
AUDIO IN
Y CB/PBCR/PR
COMPONENT VIDEO OUT
R L
AUDIO OUT
VIDEO OUT
S-VIDEO OUT
HDMI USB-A
R L
AUDIO OUT
R L
AUDIO OUT
Monitor
Remote
control
Speakers
(wiht an
amplifier)
VCR/DVD/Blu-ray
Disc player
PC

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Connecting your devices (continued)
• Be sure to read the manuals for devices before connecting them to the projector,
and make sure that all the devices are suitable to be connected with this product. Before
connecting to a PC, check the signal level, the signal timing, and the resolution.
- Be sure to consult to the administrator of the network. Do not connect LAN port to any
network that might have the excessive voltage.
- Some signal may need an adapter to input this projector.
- Some PCs have multiple screen display modes that may include some signals which
are not supported by this projector.
-
Although the projector can display signals with resolution up to WUXGA (1920X1200), the signal will
be converted to the projector’s panel resolution before being displayed. The best display performance
will be achieved if the resolutions of the input signal and the projector panel are identical.
• While connecting, make sure that the shape of the cable's connector fits the port to
connect with. And be sure to tighten the screws on connectors with screws.
• When connecting a laptop PC to the projector, be sure to activate the PC’s external
RGB output. (Set the laptop PC to CRT display or to simultaneous LCD and CRT
display.) For details on how this is done, please refer to the instruction manual of the
corresponding laptop PC.
• When the picture resolution is changed on a computer depending on an input,
automatic adjustment function may take some time and may not be completed. In this
case, you may not be able to see a check box to select “Yes/No” for the new resolution
on Windows. Then the resolution will go back to the original. It might be recommended
to use other CRT or LCD monitors to change the resolution.
• In some cases, this projector may not display a proper picture or display any picture on
screen. For example, automatic adjustment may not function correctly with some input
signals. An input signal of composite sync or sync on G may confuse this projector, so
the projector may not display a proper picture.
•
The HDMI port of this model is compatible with HDCP (High-bandwidth Digital Content Protection)
and therefore capable of displaying a video signal from HDCP compatible DVD players or the like.
NOTE
About Plug-and-Play capability
Plug-and-Play is a system composed of a computer, its operating system and peripheral
equipment (i.e. display devices). This projector is VESA DDC 2B compatible. Plug-and-
Play can be used by connecting this projector to a computer that is VESA DDC (display
data channel) compatible.
•
Take advantage of this feature by connecting an RGB cable to the RGB1 port (DDC 2B
compatible). Plug-and-Play may not work properly if any other type of connection is attempted.
• Please use the standard drivers in your computer as this projector is a Plug-and-Play monitor.
NOTE for HDMI
• The HDMI supports the following signals.
-
Video signal : 480i@60,480p@60,576i@50,720p@50/60,1080i@50/60,1080p@50/60
-PC signals : See User’s Manual (detailed) Technical
-Audio signal : Format Linear PCM
Sampling Frequency 48kHz / 44.1kHz / 32kHz
• This projector can be connected with another equipment that has HDMI or DVI
connector, but with some equipment the projector may not work properly, something like
no video or no audio.
• Be sure to use an HDMI cable that has the HDMI logo.
•
When the projector is connected with a device having DVI connector, use a DVI to HDMI cable
to connect with the HDMI input and an audio cable to connect with one of the AUDIO input.

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LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Setting up
Connecting power supply
1. Connect the connector of the power cord to the AC IN (AC inlet) of the
projector.
2. Firmly plug the power cord's plug into the outlet.
►Please use extra caution when connecting the power cord, as
incorrect or faulty connections may result in fire and/or electrical shock.
• Only use the power cord that came with the projector. If it is damaged, contact
your dealer to get a new one.
• Only plug the power cord into an outlet whose voltage is matched to the power
cord. The power outlet should be close to the projector and easily accessible.
Remove the power cord for complete separation.
• Never modify the power cord.
WARNING
AC IN
to the outlet
Connector of the power cord

13
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Remote control
Remote control
Laser pointer
This remote control has a laser pointer in place of a finger or rod. The laser beam
works and the LASER INDICATOR lights while the LASER button is pressed.
►The laser pointer of the remote control is used in place of
a finger or rod. Never look directly into the laser beam outlet or point the laser
beam at other people. The laser beam can cause vision problems.
WARNING
►Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
CAUTION
Installing the batteries
Please insert the batteries before using the remote control. If the remote control starts to
malfunction, replace the batteries. If you will not use the remote control for an extended
period, remove the batteries from the remote control and store them in a safe place.
1. Slide back and remove the
battery cover in the direction
of the arrow.
2.
Align and insert the two AA batteries
(HITACHI MAXELL, Part No.LR6
or R6P) according to their plus and minus terminals as indicated in the remote control.
3.
Replace the battery cover in the direction of the arrow and snap it back into place.
►Always handle the batteries with care and use them only as
directed. Improper use may result in battery explosion, cracking or leakage,
which could result in fire, injury and/or pollution of the surrounding environment.
• Be sure to use only the batteries specified. Do not use batteries of different
types at the same time. Do not mix a new battery with used one.
•
Make sure the plus and minus terminals are correctly aligned when loading a battery.
• Keep a battery away from children and pets.
• Do not recharge, short circuit, solder or disassemble a battery.
• Do not place a battery in a fire or water. Keep batteries in a dark, cool and dry place.
• If you observe battery leakage, wipe out the leakage and then replace a battery.
If the leakage adheres to your body or clothes, rinse well with water immediately.
• Obey the local laws on disposing the battery.
WARNING
BLANK LASER
ASPECT
PUSH
ENTER
PAGEUP
LASER
INDICATOR
MYSOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGEDOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MYBUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE
LASER INDICATOR
LASER button

14
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Remote control
Approx.
3 m
30º 30º
30º
30º Approx.
3 m
20º 20º Approx.
3 m
About the remote control signal
The remote control works with the projector’s remote sensors. This projector has
three remote sensors on the front, on the top, and on the back.
The sensors can be respectively turned active or inactive using the “REMOTE
RECEIV.” in the SERVICE item of OPTION Menu (
51). Each sensor senses the
signal within the following range when the sensor is active.
The front and top sensors:
60 degrees (30 degrees to the left and right of the
sensor) within 3 meters about.
The back sensor:
40 degrees (20 degrees to the left and right of the
sensor) within 3 meters about.
• The remote control signal reflected in
the screen or the like may be available. If it is
difficult to send the signal to the sensor directly,
attempt to make the signal reflect.
• The remote control uses infrared light to send
signals to the projector (Class 1 LED), so be
sure to use the remote control in an area free
from obstacles that could block the remote
control’s signal to the projector.
• The remote control may not work correctly if
strong light (such as direct sun light) or light
from an extremely close range (such as from
an inverter fluorescent lamp) shines on the
remote sensor of the projector. Adjust the
position of projector avoiding those lights.
NOTE
Changing the frequency of remote control signal
The accessory remote control has the choice of
the mode 1 or the mode 2, in the frequency of
its signal. If the remote control does not function
properly, attempt to change the signal frequency.
Please remember that the “REMOTE FREQ.” in
SERVICE item of OPTION Menu (
51) of the
projector to be controlled should be set to the
same mode as the remote control.
To set the mode of the remote control, slide the
knob of the frequency switch inside the battery
cover into the position indicated by the mode
number to choose.
2 1
Back of the
remote control
Inside of
the battery cover
Frequency switch

15
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Remote control
Using as a wired remote control
The accessory remote control works as a wired remote control,
when the wired control port at the bottom of the remote control
connects with the REMOTE CONTROL port on the back of the
projector via an audio cable with 3.5 diameter stereo mini plugs.
When the remote control signal is hard to reach surely to
the projector in the environment, this function is effective.
• To connect the remote control with the projector, use an audio cable
with 3.5 diameter stereo mini plugs.
NOTE
Using as a simple PC mouse & keyboard
The accessory remote control works as a simple mouse and
keyboard of the PC, when the projector’s USB port(B type)
connect with the PC’s USB port(A type) via a USB cable.
(1) Mouse left button
Pushing the button into the center point works
instead of clicking the mouse's left button.
Tilting this button to one of eight directions moves
the PC's move pointer on the screen in the direction.
(2) Mouse right button
Pressing the button works instead of clicking
the mouse’s right button.
(3) Lever switch
Sliding toward the side marked ▲ works instead of the
[↑] key on the keyboard. Sliding toward the side marked
▼ works instead of the [↓] key on the keyboard.
(4) Cursor button ◄
This button works instead of the [←] key on the keyboard.
(5) Cursor button ►
This button works instead of the [→] key on the keyboard.
(6) PAGE UP button
This button works instead of the PAGE UP key on the key board.
(7) PAGE DOWN button
This button works instead of the PAGE DOWN key on the key board.
BLANK LASER
ASPECT
PUSH
ENTER
PAGE UP
LASER
INDICATOR
MYSOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGE DOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MY BUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE
BLANK LASER
ASPECT
ESC MENU RESET
POSITION AUTO
PUSH
ENTER
PAGE UP PAGE DOWN
(3)
(4)
(6)
(2)
(5)
(7)
(1)
• When the simple mouse & keyboard function of this product does not
work correctly, please check the following.
- When a USB cable connects this projector with a PC having a built-in pointing device (e.g. track
ball) like a notebook PC, open BIOS setup menu, then select the external mouse and disable
the built-in pointing device, because the built-in pointing device may have priority to this function.
- Windows 95 OSR 2.1 or higher is required for this function. And also this
function may not work depending on the PC’s configurations and mouse drivers.
- Operating simultaneously two or more keys is void except for mouse drag and drop operation.
- This function is activated only when the projector is working properly.
NOTE
USB
to a PC
USB
port
AUDIO OUT
L
DIO IN4
B/CB/PG/Y
H
REMOTE
CONTROL
BLANKLA
SER
ASPECT
PUSH
ENTER
PAGEUP
LASER
INDICATOR
MYSOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGEDOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MYBUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE

16
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Remote control
• This function is not available in any of the following cases:
- While the lamp is warming up. (The POWER indicator blinks in green.)
- While displaying BLANK (24), TEMPLATE (46) or MY IMAGE (63)
screen.
- When any menu is displayed on the screen.
- While using the cursor buttons to operate the sound or screen functions such
as adjusting the sound volume, correcting the keystone, correcting the picture
position and magnifying the screen.
• Improper use of the simple mouse & keyboard function could damage your
equipment. While using this function, please connect this product only to a
computer. Be sure to check your computer’s manuals before connecting this
product to the computer.
NOTE
Using as a simple PC mouse & keyboard (continued)

17
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Projector features / PreparationsPower on/off
BLANK LASER
ASPECT
PUSH
ENTER
PAGEUP
LASER
INDICATOR
MYSOURCE/
DOC.CAMERA
SEARCH
STANDBY/ON VIDEO RGB
PAGEDOWN
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MYBUTTON
1
2
VOLUME
+
-
FREEZE KEYSTONE MUTE
1. Make sure that the power cord is firmly and
correctly connected to the projector and the outlet.
Turning on the power
2. Remove the lens cover, and set the power switch
to the ON position (marked “I
”
).
The
POWER indicator will light up in steady orange
(72). Then wait several seconds because the
buttons may not function for these several seconds.
3. Press the STANDBY/ON button on the projector or
the remote control.
• Turn the power on/off in right order. Please power on the projector prior
to the connected devices. Power off the projector later than the connected devices.
• When the AUTO ON of the OPTION Menu is set to the TURN ON, and the power
was turned off by the power switch last time, turning the power switch on makes the
projection lamp light on without pushing the STANDBY/ON button (47).
• Use the shutdown switch (74) only when the projector is not turned off by
normal procedure.
NOTE
Power on/off
The projection lamp will light up and the POWER indicator will begin blinking in green. When the power is
completely on, the indicator will stop blinking and light in steady green.
To display the picture, select an input signal according to the section "Selecting an input signal" (18, 19).
►A strong light is emitted when the projector’s power is on. Do
not look into the lens of the projector or look inside of the projector through any
of the projector’s openings.
►Do not touch around the lamp cover and the exhaust vents during use or just
after use, since it is too hot.
WARNING
1. Press the STANDBY/ON button on the projector or the remote control.
The message "Power off?" will appear on the screen for about 5 seconds.
Turning off the power
2.
Press the STANDBY/ON button on the projector or the remote control again while
the message appears.
The projector lamp will go off, and the POWER indicator will begin blinking in orange.
Then the POWER indicator will stop blinking and light in steady orange when the
lamp cooling is complete.
3. Make sure that the POWER indicator lights in steady orange, and set the
power switch to the OFF position (marked “O”).
The POWER indicator will go off. Attach the lens cover.
Do not turn the projector on for 10 minutes or more after turning it off. Also, do not turn
the projector off shortly after turning it on. Such operations might cause the lamp to
malfunction or shorten the lifetime of some parts including the lamp.
STANDBY/ON button
POWER indicator
Power
switch

18
LWU420 User Manual-Operating Guide 020-000262-01 Rev. 1 (06-2010)
Operating
LASER
INDICATOR
MY SOURCE/
DOC.CAMERA
STANDBY/ON VIDEO RGB
ON
OFF
1
2
+
-
FREEZE KEYSTONE MUTE
Temporarily muting the sound
ESC MENU RESET
POSITION AUTO PbyP
MAGNIFY
ON
OFF
MY BUTTON
1
2
VOLUME
+
-
RGB 1 RGB 2 HDMI
VIDEO S-VIDEO COMPONENT (Y, CB/PB, CR/PR)
Operating
1.
Use the VOLUME + / VOLUME - buttons to adjust the
volume.
A dialog will appear on the screen to aid you in adjusting the
volume.If you do not do anything, the dialog will automatically
disappear after a few seconds.
Adjusting the volume
● When is selected for current picture input port, the volume adjustment is
disabled. Please see AUDIO item of AUDIO Menu (  41).
● When the projector is in the standby mode, the volume can be adjusted if is
not selected for the AUDIO OUT STANDBY of AUDIO (  41).
1.
Press MUTE button on the remote control.
A dialog will appear on the screen indicating that you have
muted the sound.
To restore the sound, press the MUTE, VOLUME + or
VOLUME - button. Even if you do not do anything, the dialog
will automatically disappear after a few seconds.
1. Press the INPUT button on the projector.
Each time you press the button, the projector switches its
input from the current port as below.
Selecting an input signal
RGB 1 RGB 2 HDMI
1. Press the RGB button on the remote control to select an
input port for the RGB signal.
Each time you press the button, the projector switches its
RGB input from the current port as below.
● While TURN ON is selected for AUTO SEARCH item in OPTION Menu,
the projector will keep checking every port sequentially till aninput signal
is detected (  47) . If RGB button is pushed when VIDEO, S-VIDEO or
COMPONENT port is selected, the projector will check RGB1 port first.
(continued on next page)
● When is selected for current picture input port, the sound is always muted.
Please see AUDIO item of AUDIO Menu (  41) .
●
When the sound is muted while a signal from VIDEO(NTSC),
S-VIDEO(NTSC) or COMPONENT(480i@60) port is selected, the C.C.
(Closed Caption) is automatically activated if the DISPLAY item of the C.C.
Menu is set to AUTO and the input signal supports the C.C. feature (65).