Mitsubishi Ex321u St Projector User Manual

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Setting the presentation timer
The presentation timer can indicate the presentation time on the screen to help 
you achieve better time management when giving presentations. Follow these 
steps to utilize this function:
1. Press TIMER SET UP on the remote control or go to the SYSTEM 
SETUP: Basic > Presentation Timer menu and press MODE/ENTER to 
display the Presentation Timer page.
2. Press   to highlight Timer period and decide the timer period by 
pressing  / . The length of time can be set from 1 to 5 minutes in 1-
minute increments and 5 to 240 minutes in 5-minute increments.
If the timer is already on, the timer will restart whenever the Timer period is reset.
3. Press   to highlight Timer display and choose if you want the timer to show up on the screen by pressing /
.
4. Press   to highlight Timer position and set the timer position by pressing 
/
.
5. Press   to highlight Timer counting direction and select your desired 
counting direction by pressing /
.
6. Press   to highlight Sound reminder and decide if you want to activate sound reminder by pressing  / . If 
you select On, a double beep sound will be heard at the last 30 seconds of counting down/up, and a triple beep 
sound will be produced when the timer is up.
7. To activate the presentation timer, press   and press  /  to select On and press MODE/ENTER.
8. A confirmation message is displayed. Highlight Yes and press MODE/ENTER to confirm. You will see the!
message “Timer is On” appearing on the!screen. The timer starts counting once the timer is turned on.
If you switch input signal or press AUTO when the timer is on, the timer will be stopped.
To cancel the timer, perform the following steps.
1. Go back to the Presentation Timer page. 
2. Press   and press  /  to highlight Off and press MODE/ENTER. A confirmation message is displayed.
3. Highlight Yes and press MODE/ENTER to confirm. You will see the message “Timer is Off” appearing on the 
screen.
How to use the TIMER On key?
TIMER ON is a multi-functional key.
• If the presentation timer is off, pressing this key displays a confirmation 
message. You can decide whether to activate the timer or not by following 
the on-screen instruction.
• If the timer is already on, pressing this key displays a confirmation 
message. You can decide whether to restart, continue or turn off the timer 
by following the on-screen instruction.
SelectionDescription
Always Displays the timer on screen throughout the presentation time.
1 min/2 min/3 min Displays the timer on screen in the last 1/2/3 minute(s).
Never Hides the timer throughout the presentation time.
SelectionDescription
Count UpIncreases from 0 to the preset time.
Count DownDecrease from the preset time to 0.
5 min5 min
5 min5 min 
						

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Hiding the image
In order to draw the audiences full attention to the presenter, you can use 
BLANK on the projector or remote control to hide the screen image. Press any 
key on the projector or remote control to restore the image. The word BLANK
appears at the lower right corner of the screen while the image is hidden.
You can set the blank time in the SYSTEM SETUP: Basic > Blank Timer
menu to let the projector return the image automatically after a period of time 
when there is no action taken on the blank screen. 
Once BLANK is pressed, the projector enters Low mode automatically.
Do not block the projection lens from projecting as this could cause the blocking 
object to become heated and deformed or even cause a fire.
Locking control keys
With the control keys on the projector locked, you can prevent your projector settings from being changed 
accidentally (by children, for example). When the Panel Key Lock is on, no control keys on the projector will operate 
exceptPOWER.
1. Press   on the projector or remote control or go to the SYSTEM
SETUP: Basic > Panel Key Lock menu, and select On by pressing  /
 on the projector or remote control. 
2. A confirmation message is displayed. Select Yes to confirm.
To release panel key lock, press any key of the projector once to display the 
panel key lock warning. With the warning being displayed, press   on the 
projector or remote control again. (Press and hold the key on the projector for 3 
seconds.)
You can also use the remote control to enter the SYSTEM SETUP: Basic > Panel Key Lock and press  /  to 
select Off.
• Keys on the remote control are still in use when panel key lock is enabled.
• If you press  POWER to turn off the projector without disabling panel key lock, the projector will still be in locked status 
the next time it is turned on.
Freezing the image
Press FREEZE on the remote control to freeze the image. The word 
FREEZE will be displayed in the upper left corner of the screen. To release 
the function, press any key on the projector or remote control.
Even if an image is frozen on the screen, the pictures are running on the video 
or other device. If the connected devices have active audio output, you will 
still hear the audio even though the image is frozen on screen.
Do not keep displaying a still picture for an extended period of time, as the 
afterimages may linger on the screen.
Adjusting the sound
The sound adjustments made as below will have an effect on the projector speaker. Be sure you have made a correct 
connection to the projector audio input. See Connection on page 16 for how the audio input is connected.
Muting the sound
To temporarily turn off the sound:
1. Press MENU/EXIT and then press  /  until the SYSTEM SETUP: 
Advanced menu is highlighted.
2. Press   to highlight Audio Settings and press MODE/ENTER. The 
Audio Settings page is displayed.
3. Highlight Mute and press  /  to select On.
Adjusting the sound level
To adjust the sound level, press VOLUME +/- on the remote control, or:
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1. Repeat steps 1-2 above.
2. Press   to highlight Volume and press  /  to select a desired sound level.
Standby Audio Out
SelectingOn enables the function. The projector can output an Audio input signal when it is in standby mode and 
Audio input and Audio out jack is correctly connected to devices.
When the projector enters standby mode, the audio will be interrupted briefly. This is not a product malfunction.
Personalizing the projector menu display
The On-Screen Display (OSD) menus can be set according to your preferences. The following settings do not affect 
the projection settings, operation, or performance. 
•Menu display time in the SYSTEM SETUP: Advanced >Menu Settings menu sets the length of time the 
OSD will remain active after your last key press. The time length ranges from 5 to 30 seconds in 5-second 
increments. Use  /  to select a suitable time frame.
•Menu position in the SYSTEM SETUP: Advanced > Menu Settings menu sets the OSD position in five 
locations. Use  /  to select a preferred position.
•Language in the SYSTEM SETUP: Basic menu sets your familiar language for the OSD menus. Use  /  to 
select your language. 
•Splash Screen in the SYSTEM SETUP: Basic menu sets a preferred logo screen to be displayed during 
projector start-up. Use  /  to select a screen.
Shutting down the projector
1. Press POWER and a confirmation message displays prompting you. 
If you dont respond in a few seconds, the message will disappear.
2. Press POWER a second time. The POWER indicator light flashes 
orange, the projection lamp shuts down, and the fans will continue to run 
for approximately 90 seconds to cool down the projector.
3. Once the cooling process finishes, the POWER indicator light is a 
steady orange and fans stop.
4. Disconnect the power cord from the wall socket if the projector will not 
be used in an extended period of time.
• To protect the lamp, the projector will not respond to any commands during the 
cooling process.
• To shorten the cooling time, you can also activate the Quick Cooling function. 
See Quick Cooling on page 45 for details.
•  Do not unplug the power cord before the projector shutdown sequence is 
complete or during the 90-second cooling down process.
• If the projector is not properly shut down, to protect the lamp, when you attempt 
to re-start the projector, the fans will run for a few minutes to cool down. Press 
POWER again to start the projector after the fans stop and the POWER 
indicator light turns orange.
Direct power off
1. The AC power cord can be pulled out during the projector is on. To protect the lamp, wait about 10 minutes 
before re-starting the projector. (When you attempt to re-start the projector, the fans may run for a few minutes 
to cool down. In such cases, press POWER again to start the projector after the fans stop and the POWER 
indicator light turns orange.
2. To protect the lamp, do not shut down the projector while the POWER indicator light is blinking green after 
the lamp lights up.
3. Before shutting down the projector, be sure to close the menu screen. If you shut down the projector without 
closing the menu, the setting data of the menu may not be saved.
4. If you shut down the projector while controlling the projector using the network function, the application 
software such as e-Control™ may fail. In this case, close the application software first. After the connection 
between the projector and the computer re-establishes, initialize the software again.
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3D
Watching 3D Content
You can enjoy 3D Content with this projector.
In order to watch 3D Content, you need to have the following items:
1. Field-sequential 3D video contents
2. DLP Link active electronic shutter glasses
(Field-sequential: The system which displays alternately the image for the left eye and the right eye.)
Play the field-sequential 3D video contents on a computer or DVD player, and then, connect the cable with the 
projector.
Go to the DISPLAY menu, then, set the 3D option to On.
Put on the electronic shutter glasses to watch the contents.
If the contents are not projected correctly, go to the DISPLAY menu, and switch the order of the image setting the 3D 
Sync.
• Watch the contents in front of the screen, not at big angle.
• If you are viewing the screen at big angle, you may not be able to view 3D contents correctly.
• If you are not viewing 3D contents correctly, check to see if the electronic shutter glasses are powered on or adequately 
charged. See the instruction manual of the electronic shutter glasses for more information.
• With the 3D option set to On, contents displayed on the projector appear darker. It is normal and does not mean the 
projector is malfunctioning.
• With the 3D option set to On,the black parts of image become slightly brighter. It is normal and does not mean the 
projector is malfunctioning.
• The following features cannot be used when viewing 3D contents on the projector:
•Magnify
•Setting
•Brightness
•Contrast
• Color
•Tint
• Sharpness
• BrilliantColor™
• Color Temperature
• 3D Color Management.
• It may occur that the image may not be enough 3D image because setting such as fluorescent lighting may occur loss of 
synchronism of glasses.
3D image Format
Page Flipping
(Field Sequential)Side by Side Top & Bottom Checkerboard
Supported Not supported Not supported Not supported
L
L R
R
R L
R L
LRLR LRLR
LRLR LRL R
LRLR LRLR
LRLR LRL R
LRLR LRLR
LRLR LRL R
R
LR LRL
DLP ProjectorDLP Link active electronicshutter glasses
SensorThe shutter timing of 
shuttered glasses is 
controlled by being 
synchronized with switching 
of right and left 3D image 
which is detected by the 
sensor of glasses. 
						

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• 3D image may not appear on the screen depending on the PC performance such as graphics board, memory, or CPU.
• The signals in the below table can be displayed with viewing 3D Contents on the projector. If a different signal is fed, the 
projector shows no 3D contents even with the 3D option set to On in the DISPLAY menu.
• If DVD is run by 480p signals, 3D image may not be displayed correctly depending on the DVD player.
• If 3D image is projected on the screen in 120Hz, the image may not appear on the screen depending on software of DVD 
player.
Notes on danger to public health during watching 3D image
• Stop watching 3D image if you feel fatigue or discomfort.
• Stop watching 3D image if you see doubly-blurred image or you cannot view the image stereoscopically.
• The following people need to refrain from use as with 3D image.
- a photosensitive patient
- a patient with heart disease
- a person in poor physical condition
- a sleepy person
- a very tired person
- a drunk person
- children
Mode Resolution (H x V)Horizontal Frequency 
(Hz)Vertical Frequency 
(Hz)
 TV60, 480i (525i)  - 15.73 59.94
VGA60 640 x 480 31.47 59.94
VGA120 640 x 480 61.91 119.52
SVGA60 800 x 600 37.88  60.32
SVGA120 800 x 600 76.30 119.97
SVGA120 800 x 600 77.43 119.85
XGA60 1024 x 768 48.36 60.00
XGA120 1024 x 768 97.55 119.99
WXGA60 1280 x 800 49.70 59.81
WXGA120 (EW331U-ST 
only)1280 x 800 101.56 119.91 
						

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Supervising and controlling by computer
With a proper LAN cable connection and LAN Control settings, you can operate the projector from a computer using 
a web browser or PJLink™ application when the computer and the projector are connected to the same local area 
network.
This projector supports Crestron® software and PJLink™.
An example of connecting the projector to computer.
• When using an external hub or router, use a Category 5 straight cable. (A crossed cable can be used with some hubs and 
routers. See the appropriate documentation for more information.)
• Dont 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.
Configuring the LAN Control Settings
If you are in a DHCP environment:
1. Make sure the projector and your computer are properly connected to the same local area network.
2. Press MENU/EXIT and then press  /  until the SYSTEM SETUP: Advanced menu is highlighted.
3. Press   to highlight LAN Control Settings and press MODE/ENTER. The LAN Control Settings page is 
displayed.
4. Press   to highlight Control By and press  /  to select LAN.
5. Press   to highlight DHCP and press  /  to select On.
6. Press   to highlight Apply and press MODE/ENTER.
7. Please wait for around 15 - 20 seconds, and then re-enter the LAN Control Settings page.
8. The IP Address,Subnet Mask,Default Gateway, and DNS Server settings will be displayed. Note down the 
IP address displayed in the IP Address row.
• If the IP Address still does not appear, contact your network administrator.
• If the LAN cables are not properly connected, the IP Address, Subnet Mask, Default Gateway, and DNS Server settings will 
display 0.0.0.0. Make sure the LAN cables are properly connected and perform the above procedures again.
If you are in a non-DHCP environment:
1. Repeat steps 1-4 above.
2. Press   to highlight DHCP and press  /  to select Off.
3. Contact your network administrator for information on the IP Address,Subnet Mask,Default Gateway, and 
DNS Server settings.
4. Press   to select the item you want to modify and press MODE/ENTER.
5. Press  /  to move the cursor and then press  /  to enter the value.
6. To save the setting, press MODE/ENTER. If you do not want to save the setting, press MENU/EXIT.
7. Press   to highlight Apply and press MODE/ENTER.
If the LAN cables are not properly connected, the IP Address, Subnet Mask, Default Gateway, and DNS Server settings will 
display 0.0.0.0. Make sure the LAN cables are properly connected and perform the above procedures again.
External hub
LAN cable (option)
(100BASE-TX or 10BASE-T should be supported.) Computer 
						

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Controlling the projector remotely through a web browser 
(e-Control™)
Once you have the correct IP address for the projector and the projector is on or in standby state, you can use any 
computer that is on the same local area network to control the projector.
When using this function, Adobe Flash Player has to be installed in your computer. Please download Adobe Flash 
Player from the website of Adobe Systems Incorporated.
1. Enter the IP address of the projector in the address bar of your browser and press enter. (for example, http://
192.168.0.146)
When using an Opera browser, add /index.html after the IP address. (for example; http://192.168.0.146/index.html)
2. The remote network operation page is displayed. This page allows you to operate the projector as if you were 
using the remote control or control panel on the projector.
i. These buttons function the same as the ones on the OSD menus or remote control. See 2. PICTURE 
menu on page 44 and Remote control on page 9 for details. 
ii. To switch input source, click on your desired source.
When you use the projector control panel or remote control to change the OSD menu settings, it may take a while for the web 
browser to synchronize these changes with the projector.
3. The Tools page allows you to manage the projector, configure the LAN control settings and secure access of 
remote network operation on this projector.
i. When using the Crestron Control System, please refer to the user manual of Crestron Control system 
for setup information.
ii. You can name the projector, keep track of its location and the person in charge of it. This column 
allows a maximum of 32 single-byte characters.
iii. You can adjust the LAN Control Settings.
iii
i
iPress /  to reveal 
more buttons.
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iv. Once set, access to the remote network operation page on this projector has been password-protected. 
To enable this function, check the box in front of Enable and type in your desired password in the 
New Password column and confirm the new password by re-entering the new password at the Confirm 
column. To disable password protection, uncheck the box.
v. Once set, access to the Tools page has been password-protected. Refer to step iv for how to use the 
password function.
• After making the adjustments, press the Send button and the data will be saved in the projector.
• Once the password is set, the Log Out button will display beside the Tools button.
• Write down your selected password in advance or right after the password is entered so that it is available to you should 
you ever forget it. If you forget the password, you will not be able to log in.
• The software is available in English language.
• When DHCP is turned on, there is a possibility of stopping the webpage connection. If this happens, please check the new 
IP address of the projector and enter the new address to connect again.
vi. Press Exit to go back to the remote network operation page.
4. The Info page displays the information and status of this projector.
i. The information you entered in the Tools page will display here and these columns are empty when 
you use e-Control™ for the first time.
ii. When the projector is in abnormal conditions, the following information will display.
 When the projector is in normal conditions or in any abnormal conditions other than the ones mentioned below, the Error 
Status column will be empty.
(3 = Error; 1 = notice)
iii. Press Exit to go back to the remote network operation page.
5. After pressing the button ‘Contact IT Help’, the HELP DESK window will appear at the upper right corner. You 
will be able to deliver messages to RoomView™ software which is connected to the same local area network.
For more information, visit http://www.crestron.com & www.crestron.com/getroomview.
Controlling the projector using PJLink™ application
This projector supports standard protocol PJLink™ for projector control and you can control and monitor projectors 
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.
Error StatusDescription
3: Lamp fail The lamp fails to ignite or turns off during operation.
3: Over Temp The projector temperature is too high or cannot be detected.
3: Fan Lock The fan rotation speed cannot be set or detected.
1: Over Lamp Usage time The lamp is still in use after the lamp warning messages display.
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• For the specifications 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 specifications of JBMIA PJLink™ Class 1. It supports all the commands 
defined by PJLink™ Class 1, and the compliance has been verified with the PJLink™ standard specifications
Version 1.0.
Utilizing the password function
To prevent unauthorized connection to the projector via PJLink™ application, the projector includes an option for 
setting up password security. To set the password:
1. Open the OSD menu and go to the SYSTEM SETUP: Advanced > LAN Control Settings menu. Press 
MODE/ENTER. The LAN Control Settings page is displayed.
2. Highlight PJLink Certification and select On by pressing  / . The default password is admin. 
3. Press to highlight Change PJLink Password and press MODE/ENTER.
4. Enter the current password. Press  ,   to select the digit and press  ,   to select from 0-9, A-Z, a-z or 
symbols. Press MODE/ENTER to confirm.
5. Enter the new password and Press MODE/ENTER to confirm.
 If you forget the password, please use the password projectorcontroller.
PJLink™supported commands
The table below shows commands to control the projector using the PJLink™ protocol.
CommendDescriptionRemark (Parameter)
POWR Power control0 = Standby
1 = Power on
POWR? Inquiry about the power state0 = Standby
1 = Power on
2 = Cooling down
3 = Warming up
INPT Input switching 11 = COMPUTER1
12 = COMPUTER2
21 = VIDEO
22 = S-VIDEO
31 = HDMI INPT? Inquiry about input switching
AVMT Mute control 10 = BLANK disable
11 = BLANK enable
20 = Audio mute disable
21 = Audio mute enable
30 = BLANK and audio mute disable
31 = BLANK and audio mute enable AVMT? Inquiry about the mute state
ERST? Inquiry about the error state1st byte: Fan error, 0 or 2
2nd byte: Lamp error, 0 or 2
3rd byte: Temperature error, 0 or 2
4th byte: Always 0
5th byte: Always 0
6th byte: Always 0
* 0 or 2 mean as follows:
0 = No error detected, 2 = Error
LAMP? Inquiry about the lamp state1st value (1 to 4 digits): Cumulative lamp operating time 
(This item shows a lamp operating time (hour) calculated 
based on that Lamp Mode is Low.)
2nd value: 0 = Lamp off, 1 = Lamp on
INST? Inquiry about the available inputsThe following value is returned.
11 12 21 22 31
NAME? Inquiry about the projector nameThe command responds with the projector name specified in 
the Tools page.
INF1?Inquiry about the manufacturer 
nameMITSUBISHI is returned. 
						

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• The PJLink INPT? will be replied only when the source is displayed on screen. When there is no signal, only 
Unavailable Time! will be answered.
• The above-mentioned control may not be performed correctly or the monitoring data may not be obtained correctly in the 
following conditions:
• During standby
• During input source switching
• During command processing
• During AUTO execution
• Before the splash screen disappears after the power is turned on.
• Use 1 computer to control/monitor 1 projector.
• For how to control/monitor using PJLink™, see the operation manual of the PJLink™ application you use.
• When you monitor the projectors operating state using this function by issuing inquiry commands successively, issue an 
inquiry command after receiving the response to the previous inquiry command from the projector.
How to Use Network Function
• When connecting a computer and projector with LAN, configure the both IP Addresses in the same network 
group.
• Configure the IP CONFIG correctly. If the settings are not correct, the communication may be unavailable. For 
the detail, consult the network administrator.
When the Control By in the SYSTEM SETUP: Advanced > LAN Control Settings menu is selected RS-232C, the 
LAN Control Settings function is not available.
Glossary
For more detail of the glossary below, refer to the technical book that is commercially available.
INF2? Inquiry about the model name EX321U-ST or EW331U-ST is returned.
INF0? Inquiry about other information No other information is available. No parameter is returned.
CLSS? Inquiry about the class information 1 is returned.
Te r mDescription
DHCP
Abbreviation for Dynamic Host Confi guration Protocol. This protocol 
automatically assigns IP Address to networked devices.
IP Address
Numerical address to identify networked computers.
Subnet Mask
A numeric value to defi ne the number of bits used for a network 
address of a divided network (or subnet) in an IP Address.
Default Gateway A server (or router) to communicate across networks (subnets) that 
are divided by Subnet Mask.
MAC Address
Abbreviation for Media Access Control Address. MAC Address is a 
unique ID number assigned to each network adapter. And this is 
based on which data are sent and received between network adapt-
ers.