Mitsubishi Xl550u Lcd Projector User Manual

							EN-31
ENGLISH
MENU ACCESSFEATURE
opt.
LOCK
UNLOCKOK
OK
PASSWORD
CONFIRM
1
32 4
O K : ENTER CANCEL : MENU
MENU ACCESSFEATURE
opt.
LOCK
UNLOCKOK
OK
PASSWORD
1
32 4
O K : ENTER CANCEL : MENU
Password function
This projector is equipped with the password function 
that is designed for prevention of wrong operation by 
children and restriction on operation by other than 
specifi ed users. 
DISPLAY INPUT ...........When the projector is turned 
on, the startup screen (or splash screen) will ap-
pear and stay on the screen until the password is 
entered. When the password is entered, the startup 
screen will switch to the regular operation screen.
MENU ACCESS ........... All the buttons except for the 
POWER button on the projector are disabled. (The 
buttons on the remote control are enabled.) You 
can use this mode as a measure of prevention 
of wrong operation by children and restriction on 
operation by other than specifi ed users.
SPLASH ID SCREEN ... IMAGE CAPTURE and SPLASH 
SCREEN in the menu become unavailable. SPLASH 
SCREEN will be set to ON automatically.
To enable the password function:
1. Display the FEATURE menu.
2. Press the 
 or 
 button to select PASSWORD 
FUNCTION.
3. Press the  or  button to change the mode 
among DISPLAY INPUT 
, MENU ACCESS  and 
SPLASH ID SCREEN 
.
•  When the password has already been set, the 
mode won’t be changed. In such cases, press 
the ENTER button to cancel the password func-
tion and try again. 
4.  Press the ENTER button.
•  The screen for setting the password function will 
appear. 
5.  Press the ENTER button.
•  The screen for entering a password will appear. 
6.  Enter a 4 - 8 digit password using the 
, 
,  or 

 buttons on the remote control as shown below.
 (
=1, =2, =3,  =4) 
7.  Press the ENTER button.
•  To cancel the procedure, press the MENU 
button. 
8.  Enter the password again for confi rmation using the 
same steps.9.  Press the ENTER button. 
•  If the entered passwords don’t match, an error 
message will appear. 
•  To cancel the procedure, press the MENU 
button. 
To cancel the password function: 
1.  Display the FEATURE menu.
2. Press the 
 or 
 button to select PASSWORD 
FUNCTION.
3.  Press the ENTER button.
•  The screen for canceling the password function 
will appear.
4.  Press the ENTER button.
•  The screen for entering the password will 
appear. 
5.  Enter a 4 - 8 digit password using the 
, 
,  or 

 buttons

on the remote control as shown below.
 (
=1, =2, =3,  =4) 
6.  Press the ENTER button.
•  If you enter a wrong password, an error message 
will appear.
•  To cancel the procedure, press the MENU 
button. 
Important:
•  Disable the password by pressing the MENU and 
ENTER buttons on the control panel at the same 
time about three seconds. 
						

							EN-32
Expand
By pressing the EXPAND button on the remote control, 
you can magnify the image to view the details.
•  The EXPAND mode doesn’t function with some 
input signals. For details, see page 43.
•  The EXPAND mode doesn’t work with video or 
S-video signal. •  When the COMPUTER 1 or COMPUTER 2 button 
on the remote control or the COMPUTER button on 
the control panel is pressed, the PinP mode will be 
canceled. 
•  The PinP mode is available only when the ASPECT 
ratio is set to AUTO. 
Still
To stop the motion in the image temporarily (or to dis-
play a still image):
Press the STILL button on the remote control.
•  The image will freeze temporarily.
To resume the motion in the image:
Press the STILL button on the remote control again.
Important:
•  Do not display a still picture for a long time because 
the afterimages may persist on the screen. To use the EXPAND mode:
1.  Press the EXPAND button. 
•  You can select the area to be magnifi ed by 
pressing the , , , or  button on the remote 
control.
•  You can change the magnifi cation of the selected 
area by pressing the + or - button.
2.  Press the EXPAND button again to exit the EXPAND 
mode.
•  The regular operation screen will appear.
Important:
•  In the EXPAND mode, you can’t adjust the volume.
Picture in Picture (PinP) 
One of the special features of this projector is the 
picture-in-picture (PinP) mode. The PinP mode allows 
you to view the images from different sources at the 
same time. 
To use the PinP mode
1.  Press the PinP button on the remote control. 
•  When you press the PinP button with the image 
from the COMPUTER/COMPONENT VIDEO 
IN-1/IN-2 terminal displayed on the screen, the 
image from the VIDEO IN or S-VIDEO IN terminal 
is displayed as the sub image. 
•  When the image from the VIDEO IN or S-VIDEO 
IN terminal is displayed, the PinP mode isn’t 
activated. 
•  When the component video signal is inputted, 
the PinP mode isn’t activated. 
2.  If necessary, select the desired external input source 
of the sub image by using the VIDEO or S-VIDEO 
button on the remote control or the VIDEO button 
on the control panel.
3.  Press the PinP button on the remote control. 
•  The PinP mode will be canceled.
To change the position of the sub image:
Press the  or  buttons on the remote control.
•  When there is no video signal for sub image, you 
can’t change the display position.
Important:
•  The motion may not run smoothly in the PinP mode.
•  The PinP mode isn’t available with some input 
signals. For further information, see page 43. 
EXPAND
Magnifi ed image
Advanced features  (continued) 
						

							EN-33
ENGLISH
Mouse remote control
By connecting to personal computer through the USB port, you can operate your computer with the projector remote 
control. 
Projector + computer with USB connector
Operation
•  You can use the mouse remote control function with a computer supporting USB only. 
•  When the lamp is turned ON, the computer connected with the USB cable may not work correctly. In this case, 
restart the computer.
•  The mouse doesn’t function for a while after the power is turned on. 
COMPUTER
VIDEO S-VIDEO
DVI-D(HDCP)
HOME PageUP
END PageDOWNAUTO POSITION
KEYSTONE
12
MENUENTER
LASER
R-CLICK
USB
Mouse pointer
Use to move the cursor on 
the image, instead of the 
computer mouse.
R-CLICK button
This operates in the same 
way as the right button on 
the computer mouse.L-CLICK button
This operates in the same 
way as the left button on 
the computer mouse.  USB cable
USB 4-pin
(type B)USB 4-pin
(type A)
To USB port
HOME button
Press to jump back 
to the fi rst page.
END button
Press to jump to the 
last page.PageUp button
Press to go back to 
the previous page.
PageDown button
Press to go to the 
next page. 
						

							EN-34
Supervising and controlling by computer
You can supervise and control the projector’s operation using a personal computer via a LAN network. 
•  To supervise and control the projector, install the software “Mitsubishi Projector Control Device Installer *” con-
tained in the attached CD-ROM. For the installation procedure and usage of the software, see “User Manual for 
LAN Control Utility” contained in the attached CD-ROM. 
 *) Functions
•  Setting of the projector’s IP address
•  Setting of password, display language, and LAN control
• PJLink™ certifi cation setting (telnet function)
•  Startup of the controlling /supervising tool (ProjectorView) using the Web browser
Major functions
ProjectorView
The controlling /supervising tool using the Web browser 
PJLink™
This projector supports standard protocol 
PJLink™ for projector control and you can control and monitor projector’s 
operations using the same application among projectors of different models and different manufacturers. 
About PJLink™
•  To use PJLink™ function, the PJLink™ application software is required. 
• For the specifi cations of 
PJLink™, access to the Web site of Japan Business Machine and Information System 
Industries Association (JBMIA)
. (http://pjlink.jbmia.or.jp/english)
•  This projector is fully compliant to the specifi cations of JBMIA 
PJLink™ Class 1. It supports all the commands 
defi ned by 
PJLink™ Class 1, and the compliance has been verifi ed with the PJLink™ standard specifi cations 
Version 1.0.
Connection
Computer
To LAN terminal
LAN cable (option)
(100BASE-TX or 10BASE-T should be supported.)LAN cable (option)
(100BASE-TX or 10BASE-T should be 
supported.)
External HUB
•  Use a straight-through category-5 cable for LAN connection.
•  Don’t touch the metal parts of the LAN connector and LAN cable because static electricity may be discharged from 
your body, causing damage to the projector.
Using the User Manual
The User Manual for LAN Control Utility is prepared in the Portable Document Format (PDF) in the CD-ROM. 
Opening the User Manuals
1.  Load the CD-ROM into the CD-ROM drive.
2. Open CD-ROM “XL650_550”
3. Double-click on “MANUAL_LAN.HTML” within the CD-ROM. A language selection list for the User Manual will be 
displayed.
4.  Move the mouse pointer to the desired language and click. 
Advanced features  (continued) 
						

							EN-35
ENGLISH
Indicators
POWER
Steady 
green
or
Steady red
Steady red
Steady 
green
Steady red
Steady red
Blinking 
green/red
Blinking 
green/red
STATUS
Blinking orange
Blinking green
Blinking green/red
Blinking red
Steady red
Off
Steady
or
Blinking
CONDITION
Abnormal temperature
• The ventilation grilles are clogged with dust or dirt.
• The room temperature is high.
The protection circuit is working or the lamp is in an
abnormal condition. 
The lamp cover isn’t closed. 
Abnormal.POSSIBLE SOLUTION
•  Clean the ventilation grilles.
•  Relocate the projector to a cooler place.
•  Wait until the STATUS indicator goes out, 
then press the POWER button.
•  If the above solution is not effective, 
replace the lamp.
Replace the lamp.
Change with a new lamp if this problem 
recurs.
Close the cover correctly.
Contact your dealer.
 Duration when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STANDARD, this duration will be  *
1 
    shorted.
*
2 Duration when LAMP MODE is set to STANDARD, this duration will be shorted up to 2000 hours.Lamp operation time warning. (Total lamp operation time 
reached 3750 hours
*1 while the power was on.)
Lamp operation time warning. (Total lamp operation time 
reached 3750 hours
*1 while the power was off.)
Lamp operation time warning. (Total lamp operation time 
reached 5000 hours
*1*2 while the power was off.)
This projector has 2 indicators, each of which shows the operation condition of the projector. 
The following offer solutions to possible problems. If these problems persist, turn the projector off and consult your 
dealer. 
Normal condition
Abnormal condition
POWER indicator
STATUS indicator 
POWER
Steady 
red
Steady
green
Steady
green
STATUS
Off
Blinking 
green
Steady 
green
CONDITION
Stand-by
Lamp stand-by (about 1 minute)
The power is on. (Normal condition)
NOTE
The POWER button cannot be used to
switch between on and off. 
						

							EN-36
Replacing the lamp
This projector is equipped with a lamp to project images. This lamp is a consumable. It may burn out or its brightness 
may decrease during use. In such cases, replace the lamp with a new one as soon as possible. Be sure to replace the 
lamp with a new lamp separately sold that is exclusive to this projector. Contact your dealer for purchase of the lamp. 
Spare lamp for XL650U: VLT-XL650LP
Spare lamp for XL550U: VLT-XL550LP
Warning:
•  Be careful not to drop the lamp fi xing screws into the inside of the projector. Don’t put a metal piece or fl ammable 
object into the projector. Using the projector with any foreign object present inside may result in electric shock or 
fi re. When you can’t remove the foreign object from the inside, contact your dealer for removal. 
•  Be sure to install the lamp securely. When the lamp isn’t installed properly, it won’t illuminate. Improper installation 
may also result in fi re.
•  Don’t shake the removed lamp or don’t lift it above your face. You may be injured in your eye by fl ying or falling 
glass fragments.
•  Don’t replace the lamp immediately after use because the lamp cover is very hot. You may get burned. Turn off the 
power using the POWER button. After the lamp goes out, wait about 2 minutes until the intake and exhaust fans 
for cooling the lamp stop rotating. Then unplug the power cord, and wait at least 1 hour to allow the lamp to cool 
down enough to the touch.
•  Do not touch the lamp directly. It may break and cause injury or burn.
Interval of lamp replacement
The recommended interval of lamp replacement is about 5000 hours*1*2 of consecutive use. Such interval differs 
depending on the operating environment and may be shorter than 5000 hours*1*2. Decrease in luminescence and/or 
color brightness indicates that the lamp needs to be replaced. When the lamp operation time exceeds 3750 hours*1, 
the indicator will blink alternately between green and red (while the lamp is lit; when the lamp is not lit, the indicator 
will be lit red only) and the lamp replacement message will appear on the screen for 1 minute everytime the lamp is 
turned on. When the lamp has been used for about 4750 hours
*1, the replacement message (LAMP EXCHANGE) will 
appear on the screen for 1 minute every 25 hours*1 thereafter.
When the lamp operation time exceeds 5000 hours
*1*2, the projector automatically shuts off and can’t be used 
until the lamp is replaced and the lamp operation time is reset.
*1   Duration when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STANDARD, this duration 
will be shorted.
*2   Duration when LAMP MODE is set to STANDARD, this duration will be shorted to 2000 hours.
Caution:
•  Don’t remove the lamp for any purpose other than replacement. Unnecessary removal of the lamp may result in a 
breakdown.
•  This projector uses a high-pressure mercury lamp as the light source. The high-pressure mercury lamp may 
explode or fail to illuminate permanently because of an impact, scratch, or deterioration through use. The period 
of time until explosion or permanent failure to illuminate varies considerably from lamp to lamp, depending on 
operation conditions. Therefore, the lamp may explode soon after the start of use. 
•  The possibility of explosion of the lamp increases if you use it beyond its replacement period. When the instruction 
of lamp replacement appears, replace it with a new one immediately even if the lamp is still lighting normally. 
•  When the high-pressure mercury lamp explodes, glass fragments will scatter inside or outside the lamp box and 
the gas charged inside the lamp will diffuse inside or outside the projector. The gas inside the lamp contains 
mercury. Be careful not to breathe it or avoid it from entering your eye or mouth. If you should breathe it or if it 
should enter your eye or mouth, see a doctor immediately.
•  In the event that the high-pressure mercury lamp exploded, glass fragments may have been scattered inside the 
projector. Ask your dealer to replace the lamp and to inspect the inside of the projector. When you clean or replace 
the lamp by yourself, be sure to hold the handle of the lamp. You may get injured by glass fragments. 
•  When removing the lamp from the ceiling-mounted projector, use the lamp replacement tray packed with the 
projector or option lamp to prevent glass fragments from scattering. 
•  Be sure to use the lamp exclusive to this projector, VLT-XL650LP for XL650U (or VLT-XL550LP for XL550U). Use of 
other lamps may cause a failure of the projector. 
						

							EN-37
ENGLISH
To replace the lamp: 
1.  Loosen the screw (a) using a Phillips screwdriver (+), and 
remove the lamp cover (b).
2.  Loosen the screws (c) using a Phillips screwdriver (+).
3. Pull the handle. 
4.  Pull out the lamp box by the handle while holding the 
projector.
•  Pull the lamp box out of the projector slowly. If it is 
pulled out quickly, the lamp may break scattering glass 
fragments. 
•  Do not spill liquid on the removed lamp box or do not 
place it near any fl ammable object or where children 
can reach to prevent injury or fi re.
5.  Load a new lamp box securely into the projector in the right 
orientation.
6.  Put the handle back to the original position.
•  Make sure that the handle is locked.
7.  Tighten up the screws (c) using a Phillips screwdriver (+).
8.  Tighten up the screw (a) using a Phillips screwdriver (+) to 
secure the lamp cover.
Reset of the lamp operation time
Plug in the power cord and reset the lamp operation time by 
holding down the 
, 
, and POWER buttons on the control 
panel at the same time about three seconds.
Important:
•  Unless these 3 buttons are pressed at the same time, the lamp operation time isn’t reset. 
•  Make sure that the STATUS indicator is lit twice and the lamp operation time is reset successfully. 
•  The projector doesn’t turn on if the lamp cover isn’t attached securely. 
•  Be sure to reset the lamp operation time whenever you replace the lamp. 
•  Do not reset the lamp operation time unless you replace the lamp. 
When removing the lamp from the ceiling-mounted projector 
When removing the lamp from the ceiling-mounted projector, use the lamp replacement tray packed with the 
projector or option lamp to prevent glass fragments from scattering. 
•  Assemble the lamp replacement tray according to the procedure shown on it. 
(a)(b)
(c)
(c)
(a)
Important:
•  The lamp is fragile. If it is broken, be careful not to cut yourself with glass fragments.
•  This projector uses a lamp that contains mercury. Disposal of the lamp or the projector with the lamp may be 
regulated due to environmental considerations. For disposal or recycling information, please contact your local 
authorities or the Electronic Industries Alliance: www.eiae.org. (For the U.S. only.)
1.  Follow steps 1 to 3 shown above. 
2.  Attach the lamp replacement tray to the projector as shown 
in the fi gure. 
3.  Secure the lamp replacement tray on the projector using 
the tape packed with the tray. 
4  Pull out the lamp box by the handle while holding the 
projector. 
•  Don’t put the lamp directly on the lamp replacement 
tray because it may fall. 
5.  Detach the lamp replacement tray together with the 
removed lamp.  
						

							EN-38
Maintenance
Warning:
•  Never use fl ammable air duster or other materials when cleaning the air-fi lter. Flammable substances may ignite 
causing fi re or backdown when the lamp is illuminated.
•  Do not use fl ammable solvents (benzene, thinner, etc.) and fl ammable aerosols when cleaning the projector body 
and lens. Flammable substances may ignite causing fi re or breakdown while the lamp is illuminating.
Caution:
Be sure to turn off the lamp and unplug the power cord from the wall outlet before you perform any maintenance on 
the projector. 
Cleaning of the air-fi lter
Clean the air-fi lter frequently (about once a month). If the fi lter or ventilation grilles become clogged with dirt or dust, 
the temperature inside the projector may rise and cause troubles, such as damage to the inside parts and shortening 
the life of the panels.
•  When the temperature inside the projector rises, the STATUS indicator will blink orange and the lamp will be turned 
off. 
1.   Raise the lock of the fi lter cover in the direction of the arrow.
2.  Remove the air-fi lter.
3.  Wash the air-fi lter or change it with a new fi lter.
•  Use water or diluted mild detergent to clean the fi lter. Rinse the fi lter thoroughly 
and let it dry completely. 
4.  Attach the air-fi lter.
5. Attach the fi lter cover to the projector.
•  Make sure that the air-fi lter is attached correctly without 
displacement.
Important:
•  If the fi lter is damaged or becomes extremely dirty, change it with a new fi lter. Contact your dealer for a new fi lter.
Caution:
Be sure to use the projector with an air-fi lter. If not, dust may get inside the projector causing fi re and failure.
Cleaning of the projector and the ventilation slots
Use a soft cloth to clean the projector and the ventilation grilles. When the grilles become dirty, wipe them with a soft 
cloth dampened with diluted mild detergent, and then wipe them with a dry cloth.
To protect the surface of the projector from fading or deteriorating:
•  Do not spray insecticide on or inside the projector.
•  Do not use benzine or thinner to clean it.
•  Do not let rubber or plastic materials contact with projector.
Cleaning of the lens
Use a standard lens-cleaning brush or a piece of lens tissue dampened with lens cleaning fl uid. The lens surface is 
fragile. Use only recommended, nonabrasive lens-cleaning materials. Do not touch the lens with your fi ngers.
Filter cover
Air-fi lter 
						

							EN-39
ENGLISH
POWER
Off
Steady red
Blinking 
red/green
STATUS
Off
Off
Blinking 
orange
Blinking 
green
Steady red
Off
Steady
or
Blinking
  Solution
•  Connect the power cord to the projector. 
•  Plug the power cord into a wall outlet. 
•  If any objects are blocking the air inlet or outlet grille, remove them and carry 
out the following.
1.  Unplug the power cord from the wall outlet.
2.  Make sure that the projector has cooled off. 
3.  Plug the power cord into the wall outlet.
4.  Press the POWER button.
•  If any objects are blocking the air inlet or outlet grille, remove them.
•  Don't expose the air outlet grilles to hot air emitted f
•  Check wheather the filter is clogged with dirt and dust.
Clean the filter, if clogged. (See page 38.)rom a heating appliance.
•  After the STATUS indicator stops blinking, press the POWER button.
•  If you unplug the power cord while the fan is rotating, the lamp may not turn on about 1 minute when 
you plug the power cord next time. 
•  The lamp can't turn on again for 1 minute after it goes out. 
•  Press the POWER button several times.
•  Replace the lamp. (The lamp is at the end of its life.)
•  Attach the lamp cover on the bottom.
•  Unplug the power cord from the wall outlet and contact your dealer.
Troubleshooting
Before asking for repair of the projector, check the following. If the symptom persists, stop using the projector, be 
sure to unplug the power plug, and then contact your dealer. 
No image appears on the screen. 
Problem
Power can not be 
turned on.
No image appears on 
the screen. 
Power turns off. Solution
•  Check whether the indicators are on or off and how they are lightning.
• Cancel the AV mute by pressing the MUTE button.
•  Check that the lens cap is removed. 
•  It may take about 1 minute for the lamp to light up. 
•  The lamp fails to light up on rare occasions. In such a case, wait for a few minutes 
and then try again. 
•  If the projector was turned off before the lamp was cooled down suffi ciently last time, 
the fan may start rotating and the POWER button may not work after the power cord 
is plugged. After the fan stops rotating, press the POWER button to turn back on the 
POWER indicator. 
• Set SCART INPUT in the FEATURE menu to OFF. (See page 25.)
•  Check that the intake vent is clean. 
•  Check that the lamp cover is closed. (See page 37.)
•  Check that the cables connected to the external devices are not broken. 
•  When an extension cable is being used, replace it with the supplied cable for check. 
When images are displayed correctly, add an RGB signal amplifier to the extension 
cable. 
•  This problem may occur when the intake vent and/or exhaust vents are blocked. (In 
such a case, the STATUS indicator brinks orange.)
  Remove the objects blocking the intake vent and/or exhaust vents and then carry 
out the following procedure. 
1.  Wait for the intake fan and/or exhaust fan to stop. (Wait until the STATUS 
indicator goes out.) 
2.  Unplug the power cord from the wall outlet. 
3.  Wait about 10 minutes.
4.  Plug the power cord into the wall outlet. 
5.  Press the POWER button. 
•  When the STATUS indicator is steady red, it is indicating that the lamp should be 
replaced. Replace the lamp in this case. 
•  Check that AUTO POWER OFF has been set to OFF. 
•  If the lamp has deteriorated, it may go out after a while it illuminates.  
						

							EN-40
Images are not displayed correctly. 
Problem
Projected images are 
shaking.
Projected images are 
displaced. 
Projected images are 
distorted. 
Projected images are 
dark. 
Projected images are 
blurred. 
Afterimages persist on 
the screen.
Red, blue, and 
green dots appear in 
projected images. 
Black dots appear in 
projected images. 
Fine streaks are seen 
on projected images. 
Projected images 
become wavy. 
Hue is not appropriate. 
Tint in projected 
images is incorrect.
Different color tint.Solution
•  Check that the cable connected to the external device isn’t intermittent. 
•  Connect the cable’s plug with the external device’s connector fi rmly.
•  Press the AUTO POSITION button.
•  Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL 
menu. (See page 29.)
•  Adjust the projector and the screen so that they are perpendicular to each other. (See 
page 10.)
•  Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 27.)
•  Replace the lamp. (See page 36.)
•  Adjust the focus. (See pages 15 and 19.)
•  Clean the lens. 
• Press the 
 or 
 button on the remote control to eliminate fl icker. 
•  Adjust TRACKING and FINE SYNC. in the SIGNAL menu. (See page 29.)
•  Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 27.)
•  Adjust the projector and the screen so that they are perpendicular to each other. (See 
page 10.) 
•  This phenomenon is improved by keeping projecting an evenly bright image. (Such 
"image burn-in" phenomenon where afterimages persist on the screen may occur if a 
stationary image is kept displayed on the screen for a long time.)
•  This phenomenon is unique to LCD projector and isn’t a product malfunction. 
  (A small number of pixels always stay on or off, which are not malfunctions. More than 
99.99% of the pixels are effective.)
•  This is due to interference with the screen surface and is not a malfunction. Replace 
the screen or displace the focus a little. 
•  Vertical or horizontal streak noise may appear on the projected image, depending on 
the type of the DVD player or game console you use. In such a case, you can reduce 
such streak noise by enabling the LPF. 
•  Connect the plugs of the cables to external devices securely. 
•  Keep the projector away from devices that emit interfering radio waves. 
•  When the keystone adjustment is carried out, the image may not be displayed 
correctly depending on the type of input signal. This isn’t a product malfunction. In 
this case, readjust the keystone so that the amount of keystone correction is as small 
as possible.
•  Check that the cables connected to the external devices are not broken. 
•  Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 26.)
•  Check that the cable connected to the external device isn’t broken. 
•  When comparing images projected by two projectors, tints in the displayed images 
may be different because of variation between their optical components.  This is not a 
malfunction. 
•  When comparing the image projected by this projector with those displayed on the 
television or PC monitor, tints in the displayed images may be different because of 
difference in the range of color reproducibility.  This is not a malfunction.  
No image appears on the screen. (continued) 
Problem
The screen for entering 
the password appears.
“NO SIGNAL” is 
displayed.Solution
• PASSWORD FUNCTION in the FEATURE menu has been set to DISPLAY INPUT to 
enable the password lock. 
 Enter the password or contact the person in charge of management of the projec-
tor. (See page 31.)
•  Turn on the power of the connected device, or check whether there is something 
wrong with the connected device.
•  Check whether the external device output signals. (Check this especially when the 
external device is a notebook computer.) 
•  Check that the cable connected to the external device isn’t defective. 
•  Check that the projector is connected to the external device using the correct 
terminals. 
•  Check that the connected device is correctly selected as the input source. 
•  When an extension cord is being used, replace it with the supplied cable and check 
whether images are projected correctly. If images are projected correctly, use an RGB 
signal amplifi er along with the extension cord. 
Troubleshooting (continued)