Mitsubishi Ex321u St Projector User Manual

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Operation
Starting up the projector
1. Plug the power cord into the projector and into a wall socket. Turn on the 
wall socket switch (where fitted). Check that the POWER indicator light
on the projector lights orange after power has been applied.
• Ask your installation specialist to provide an Earth leakage breaker. When you do 
not use the projector, be sure to shut down the main power by the breaker.
• Please use the original accessories (e.g. power cord) only with the device to 
avoid possible dangers such as electric shock and fire.
• In order to ensure the safety in case of trouble with the projector, use an 
electrical outlet having an earth leakage breaker to supply the power to the 
projector. If you do not have such outlet, ask your dealer to install it.
2. Remove the lens cap. If it is closed, it could become deformed due to the 
heat produced by the projection lamp.
3. Press POWER on the projector or remote control to start the 
projector. The POWER indicator light flashes green and stays green 
when the projector is on.
The start up procedure takes about 30 seconds. In the later stage of start up, 
a startup logo is projected.
(If necessary) Rotate the focus ring to adjust the image clearness.
• If the projector is still hot from previous activity, it will run the cooling fans for 
approximately 90 seconds before energizing the lamp.
• To maintain the lamp life, once you turn the projector on, wait at least 5 minutes 
before turning it off.
• After  POWER is pressed, the image may flicker before the lamp becomes 
stable. This is not a product malfunction.
4. If the projector is activated for the first time, select your OSD language 
following the on-screen instructions.
5. If you are prompted for a password, press the arrow keys to enter a six-
digit password. See Utilizing the password function on page 23 for 
details.
6. Switch all of the connected equipment on.
7. The projector will start to search for input signals. The current input 
signal being scanned appears in the upper left corner of the screen. If the 
projector doesnt detect a valid signal, the message No Signal will be 
displayed until an input signal is found.
You can also press SOURCE on the projector or remote control to select 
your desired input signal. See Switching input signal on page 24 for 
details.
If the frequency/resolution of the input signal exceeds the projectors operating 
range, you will see the message Out of Range displayed on a blank screen. Please 
change to an input signal which is compatible with the projectors resolution or set 
the input signal to a lower setting. See Timing chart on page 56 for details.
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Using the menus
The projector is equipped with On-Screen Display (OSD) menus for making various adjustments and settings.
Below is the overview of the OSD menu.
Below is an example about how to set the OSD language.
1. Press MENU/EXIT on the projector or remote 
control to turn the OSD menu on.3. Press   to highlight Language and press  /  
to select a preferred language.
2. Use  /  to highlight the SYSTEM SETUP: 
Basic menu.4. Press MENU/EXIT twice* on the projector or 
remote control to leave and save the settings.
*The first press leads you back to the main menu and 
the second press closes the OSD menu.
Current input signal
Main menu icon
Main menu
Sub-menu
Highlight
PressMENU/
EXIT to go 
back to the 
previous page 
or to exit.Status 
						

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Utilizing the password function
For security purposes and to help prevent unauthorized use, the projector includes an option for setting up password 
security. The password can be set through the On-Screen Display (OSD) menu. For details of the OSD menu 
operation, please refer to Using the menus on page 22.
You will be inconvenienced if you activate the power-on lock functionality and subsequently forget the password. Print out this
manual (if necessary) and write the password you used in this manual, and keep the manual in a safe place for later recall.
Setting a password
Once a password has been set, the projector cannot be used unless the correct password is entered every time the projector is 
started.
1. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings menu. Press MODE/
ENTER. The Security Settings page is displayed.
2. Highlight Power on lock and select On by pressing  / .
3. As pictured to the right, the four arrow keys ( ,  ,  ,  ) respectively 
represent 4 digits (1, 2, 3, 4). According to the password you desire to set, 
press the arrow keys to enter six digits for the password.
4. Confirm the new password by re-entering the new password. 
Once the password is set, the OSD menu returns to the Security Settings
page.
The digits being input will be displayed as asterisks on-screen. Write your selected 
password down here in this manual in advance or right after the password is entered so 
that it is available to you should you ever forget it.
Password: __ __ __ __ __ __
Keep this number in a safe place.
5. To leave the OSD menu, press MENU/EXIT.
If you forget the password
If the password function is activated, you will be asked to enter the six-digit 
password every time you turn on the projector. If you enter the wrong password, 
the password error message as pictured to the right is displayed lasting for three 
seconds, and the message INPUT PASSWORD follows. You can retry by 
entering another six-digit password, or if you did not record the password in this 
manual, and you absolutely do not remember it, you can use the password recall 
procedure. See Entering the password recall procedure on page 23 for details.
If you enter an incorrect password 5 times in succession, the projector will automatically shut down in a short time.
Entering the password recall procedure
1. Press and hold AUTO on the projector or remote control for 3 seconds 
when the message INPUT PASSWORD is displayed. The projector will 
display a coded number on the screen.
2. Write down the number and turn off your projector.
3. Please obtain a password using the Mitsubishi Password Decoder Software 
Operation Manual included in this CD.
Changing the password
1. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings > Change password
menu.
2. Press MODE/ENTER. The message INPUT CURRENT PASSWORD is displayed.
3. Enter the old password.
• If the password is correct, another message INPUT NEW PASSWORD is displayed.
• If the password is incorrect, the password error message is displayed lasting for three seconds, and the message 
INPUT CURRENT PASSWORD is displayed for your retry. You can press MENU/EXIT to cancel the 
change or try another password.
4. Enter a new password.
The digits being input will be displayed as asterisks on-screen. Write your selected password down here in this manual in 
advance or right after the password is entered so that it is available to you should you ever forget it. 
						

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assw
ee
. onfirm the new password by re-entering the new password.
. You have successfully assigned a new password to the projector.  emember to enter the new password ne t time 
the projector is started.
. To leave the  S  menu, press ME U E T.
isabling the  ass or   nction
To disable password protection, go back to the SYSTEM SETUP:  ance > Sec rit  Settings   Po er on loc
menu after opening the  S  menu system. Select   by pressing .The message PUT P SS R is 
displayed.  nter the current password. 
 f the password is correct, the  S  menu returns to the Sec rit  Settings page with   shown in the row of 
Po er on loc. You will not have to enter the password ne t time you turn on the projector.
 f the password is incorrect, the password error message is displayed lasting for three seconds, and the message 
PUT P SS R is displayed for your retry. You can press ME U E T to cancel the change or try 
another password.
houg
p
S itching in t signal
The projector can be connected to multiple devices at the same time.  owever, it can only display one full screen at a 
time. 
e sure the ic  to Search function in the S URCE menu is n  which is the default of this projector  if you 
want the projector to automatically search for the signals.
You can also manually cycle through the available input signals.
. Press S URCE on the projector or remote control. A source selection bar 
is displayed. 
. Press   until your desired signal is selected and press ME
E TER.
nce detected, the selected source information will be displayed on the 
screen for seconds.  f there is multiple equipment connected to the 
projector, repeat steps  -  to search for another signal.

						

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Adjusting the projected image
Adjusting the projection angle
The projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. These adjusters change the image 
height and projection angle. To adjust the projector:
1. Press the quick-release button and lift the front of the projector. Once the 
image is positioned where you want it, release the quick-release button to 
lock the foot in position.
2. Screw the rear adjuster foot to fine tune the horizontal angle.
To retract the foot, hold up the projector while pressing the quick-release 
button, then slowly lower the projector. Screw the rear adjuster foot in a reverse 
direction.
If the projector is not placed on a flat surface or the screen and the projector are 
not perpendicular to each other, the projected image becomes trapezoidal. To 
correct this situation, see Correcting keystone on page 25 for details.
• Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes.
• Be careful when you press the adjuster button as it is close to the exhaust vent where hot air comes from.
Auto-adjusting the image
In some cases, you may need to optimize the picture quality. To do this, press 
AUTO on the projector or remote control. Within 3 seconds, the built-in 
Intelligent Auto Adjustment function will re-adjust the values of Frequency 
and Clock to provide the best picture quality. 
The current source information will be displayed in the upper left corner of the 
screen for 3 seconds. 
• The screen will be blank while AUTO is functioning.
• This function is only available when a PC signal (analog RGB) is selected.
Fine-tuning the image size and clarity
In the right figure, (A) Focus Ring
1. Adjust Focus. (using (A) Focus Ring)
2. Move the product back and forth to adjust the screen size.
3. Adjust Focus again if necessary.
Correcting keystone
Keystoning refers to the situation where the projected image is noticeably wider at either the top or bottom. It occurs 
when the projector is not perpendicular to the screen. 
To correct this, besides adjusting the height of the projector, you will need to manually correct it following one of 
these steps.
• Using the remote control
Press  /  on the projector or remote control to display the Keystone 
correction page. Press   to correct keystoning at the top of the image. Press 
 to correct keystoning at the bottom of the image.
• Using the OSD menu
1. Press MENU/EXIT and then press  /  until the DISPLAY menu is 
highlighted.
2. Press   to highlight Keystone and press MODE/ENTER. The 
Keystone correction page is displayed.
3.  Press   to correct keystoning at the top of the image or press   to 
correct keystoning at the bottom of the image.
• You can correct the vertical keystones. However, their adjustment ranges are 
limited in such correction.
• When the keystone adjustment is carried out, the adjustment value is 
indicated. Note that this value doesn’t mean a projection angle. 
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A
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• The allowable range of the adjustment value in the keystone adjustment varies depending on the installation conditions. 
• Images may not be projected in a shape of a regular rectangle or with its aspect ratio 4:3, depending on the installation 
conditions of the projector and the screen. 
• When the keystone adjustment takes effect, the resolution decreases. In addition, stripes may appear or straight lines may 
bend in images with complicated patterns. They are not due to product malfunctions. 
• Noise may appear on the screen during the keystone adjustment because of the type of the video signal being projected 
and the setting values of the keystone adjustment. In such cases, set the keystone adjustment values in the range where 
the image is displayed without noise. 
• When the keystone adjustment is carried out, the image may not be displayed correctly because of the type of input 
signal.
Magnifying and searching for details
If you need to find the details on the projected picture, magnify the picture. Use the direction arrow keys for 
navigating the picture.
• Using the remote control
1. Press MAGNIFY +/- to display the Zoom bar.
2. Press MAGNIFY + to magnify the center of the picture. Press the key 
repeatedly until the picture size is suitable for your need.
3. Use the directional arrows ( ,  ,  ,  ) on the projector or remote 
control to navigate the picture.
4. To restore the picture to its original size, press AUTO. You can also 
press MAGNIFY -. When the key is pressed again, the picture is further 
reduced until it is restored to the original size.
• Using the OSD menu
1. Press MENU/EXIT and then press  /  until the DISPLAY menu is highlighted.
2. Press to highlight Magnify and press MODE/ENTER. The Zoom bar is displayed.
3. Repeat steps 2-4 in the section of Using the remote control above. Or if you are using the projector control 
panel, continue to the following steps.
4. Press   on the projector repeatedly to magnify the picture to a desired size.
5. To navigate the picture, press MODE/ENTER to switch to the panning mode and press the directional arrows 
( ,  ,  ,  ) to navigate the picture.
6. Use the directional arrows ( ,  ,  ,  ) on the projector or remote control to navigate the picture.
7. To reduce size of the picture, press MODE/ENTER to switch back to the zoom in/out functionality, and press 
AUTO to restore the picture to its original size. You can also press   repeatedly until it is restored to the 
original size.
The picture can only be navigated after the picture is magnified. You can further magnify the picture while searching for details.
Selecting the aspect ratio
The aspect ratio is the ratio of the image width to the image height. Most analog TV and computers are in 4:3 ratio, 
and digital TV and DVDs are usually in 16:9 ratio.
With the advent of digital signal processing, digital display devices like this projector can dynamically stretch and 
scale the image output to a different aspect than that of the image input signal.
To change the projected image ratio (no matter what aspect the source is):
1. Press MENU/EXIT and then press  /  until the DISPLAY menu is highlighted.
2. Press to highlight Aspect Ratio.
3. Press  /  to select an aspect ratio to suit the format of the video signal and your display requirements. 
						

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About the aspect ratio
In the pictures below, the black portions are inactive areas and the white portions are active areas. OSD menus can be 
displayed on those unused black areas.
1.Auto: Scales an image proportionally to fit the projectors 
native resolution in its horizontal width or its vertical height. 
This is suitable when you want to make most use of the screen 
without altering the images aspect ratio.
2.16:9: Scales an image so that it is displayed in the center of the 
screen with a 16:9 aspect ratio. This is most suitable for 
images which are already in a 16:9 aspect, like high definition 
TV and 16:9 aspect DVD movies, as it displays them without 
aspect alteration.
3.Real: The image is projected as its original resolution, and 
resized to fit within the display area. For input signals with 
lower resolutions, the projected image will display smaller 
than if resized to full screen. You could adjust the zoom setting 
or move the projector towards the screen to increase the image 
size if necessary. You may also need to refocus the projector 
after making these adjustments.
4.4:3: Scales an image so that it is displayed in the center of the 
screen with a 4:3 aspect ratio. This is most suitable for 4:3 
images like computer monitors, standard definition TV and 4:3 
aspect DVD movies, as it displays them without aspect 
alteration.
5.Full: Scales an image to full screen size (16:10). The image is 
projected to fit all over screen. (EW331U-ST only)
16:10 picture
4:3 picture
16:9 picture
16:9 picture
4:3 picture
16:9 picture
4:3 picture
4:3 picture
16:9 picture
16:10 picture
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Optimizing the image
Selecting a picture mode
The projector is preset with several predefined picture modes so that you can 
choose one to suit your operating environment and input signal picture type.
To select a operation mode that suits your need, you can follow one of the 
following steps.
•Press MODE/ENTER on the remote control or projector repeatedly until 
your desired mode is selected.
• Go to the PICTURE > Setting menu and press  /  to select a desired 
mode.
Picture modes for different types of signals
The picture modes available for different types of signals are listed below.
1.Brightest mode: Maximizes the brightness of the projected image. This mode is suitable for environments 
where extra-high brightness is required, such as using the projector in well lit rooms.
2.Presentation mode: Is designed for presentations. The brightness is emphasized in this mode to match PC and 
notebook coloring. For Video input signals, this mode is suitable for playing gamebox-based video games in a 
normal living room lighting level environment.
3.Normal mode: Maximizes the purity of RGB colors to provide true-to-life images regardless of brightness 
setting. It is most suitable for viewing photos and for viewing PC graphic and drawing applications such as 
AutoCAD. For Video input signals, this mode is appropriate for viewing colorful movies, video clips from 
digital cameras or DVs.
4.Theater mode:!Is appropriate for playing colorful movies, video clips from digital cameras or DVs through the 
PC input for best viewing in a blackened (little light) environment. For Video input signals, this mode is suitable 
for enjoying dark movies or DVD movies best viewed in a blackened (little light) home cinema or lounge room 
environment.
5.User 1/User 2 mode: Recalls the settings customized based on the current available picture modes. See Setting 
the User 1/User 2 mode on page 28 for details.
Setting the User 1/User 2 mode
There are two user-definable modes if the current available picture modes are not suitable for your need. You can use 
one of the picture modes (except the User 1/User 2) as a starting point and customize the settings.
User 1 is for PC sources, and User 2 is for VIDEO sources.
1. Press MENU/EXIT to open the On-Screen Display (OSD) menu.
2. Go to the PICTURE > Setting menu.
3. Press  /  to select User 1 to User 2.
4. Press  to select a sub-menu item to be changed and adjust the value with  / . See Fine-tuning the image 
quality in user modesbelow for details.
5. When all settings have been done, highlight Save Settings and press MODE/ENTER to store the settings.
6. The confirmation message Setting Saved is displayed. 
						

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Fine-tuning the image quality in user modes
According to the detected signal type, there are some user-definable functions available when User 1 or User 2 mode 
is selected. You can make adjustments to these functions based on your needs.
Adjusting Brightness
Highlight Brightness in the PICTURE menu and adjust the values by pressing  / on the projector or remote 
control.
The higher the value, the brighter the image. And lower the setting, darker 
the image. Adjust this control so the black areas of the image appear just as 
black and that detail in the dark areas is visible.
Adjusting Contrast
Highlight Contrast in the PICTURE menu and adjust the values by 
pressing  / on the projector or remote control.
The higher the value, the greater the contrast. Use this to set the peak white 
level after you have previously adjusted the Brightness setting to suit your 
selected input and viewing environment.
Adjusting Color
Highlight Color in the PICTURE menu and adjust the values by pressing  / on the projector or remote control.
Lower setting produces less saturated colors. If the setting is too high, colors on the image will be overpowering, 
which makes the image unrealistic.
Adjusting Tint
Highlight Tint in the PICTURE menu and adjust the values by pressing  / on the projector or remote control.
The higher the value, the more reddish the picture becomes. The lower the value, the more greenish the picture 
becomes.
Adjusting Sharpness
Highlight Sharpness in the PICTURE menu and adjust the values by pressing  /   on the projector or remote 
control.
The higher the value, the sharper the picture becomes. The lower the value, the softer the picture becomes.
Adjusting BrilliantColor™
Highlight BrilliantColor™ in the PICTURE menu and select by pressing  / on the projector or remote control.
This feature utilizes a new color-processing algorithm and system level enhancements to enable higher brightness 
while providing truer, more vibrant colors in picture. It enables a greater than 50% brightness increase in mid-tone 
images, which are common in video and natural scenes, so the projector reproduces images in realistic and true colors. 
If you prefer images with that quality, select On. If you don’t need it, select Off.
On is the default and recommended selection for this projector. When Off is selected, the Color Temperature
function is not available.
Selecting a Color Temperature
Highlight Color Temperature in the PICTURE menu and adjust the values by pressing  /  on the projector or 
remote control.
The options available for color temperature* settings vary according to the signal type selected.
1.T1: With the highest color temperature, T1 makes the image appear the most bluish white than other settings.
2.T2: Makes images appear bluish white.
3.T3: Maintains normal colorings for white.
4.T4: Makes images appear reddish white.
*About color temperatures:
There are many different shades that are considered to be white for various purposes. One of the common methods 
of representing white color is known as the “color temperature”. A white color with a low color temperature appears 
to be reddish white. A white color with a high color temperature appears to have more blue in it.
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3D Color Management
In most installation situations, color management will not be necessary, such as in classroom, meeting room, or 
lounge room situations where lights remain on, or where building external windows allow daylight into the room. 
Only in permanent installations with controlled lighting levels such as boardrooms, lecture theaters, or home theaters, 
should color management be considered. Color management provides fine color control adjustment to allow for more 
accurate color reproduction, should you require it.
Proper color management can only be achieved under controlled and reproducible viewing conditions. You will need 
to use a colorimeter (color light meter), and provide a set of suitable source images to measure color reproduction. 
These tools are not provided with the projector, however, your projector supplier should be able to provide you with 
suitable guidance, or even an experienced professional installer.
The Color Management provides six sets (RGBCMY) of colors to be adjusted. When you select each color, you can 
independently adjust its range and saturation according to your preference.
If you have purchased a test disc which contains various color test patterns and can be used to test the color 
presentation on monitors, TVs, projectors, etc. You can project any image from the disc on the screen and enter the 3D
Color Management menu to make adjustments.
To adjust the settings:
1. Go to the PICTURE menu and highlight 3D Color Management.
2. Press MODE/ENTERand the 3D Color Management page is displayed.
3. Highlight Primary Color and press  /  to select a color from among Red, Green, Blue, Cyan, Magenta, or 
Yellow.
4. Press   to highlight Hue and press  /  to select its range. Increase in the range will include colors consisted 
of more proportions of its two adjacent colors.
Please refer to the illustration to the right for how the colors relate to each 
other.
For example, if you select Red and set its range at 0, only pure red in the 
projected picture will be selected. Increasing its range will include red close 
to yellow and red close to magenta.
5. Press   to highlight Saturation and adjust its values to your preference 
by pressing  / . Every adjustment made will reflect to the image 
immediately.
For example, if you select Red and set its value at 0, only the saturation of 
pure red will be affected.
6. Press   to highlight Gain and adjust its values to your preference by 
pressing  / . The contrast level of the primary color you select will be 
affected. Every adjustment made will reflect to the image immediately. 
7. Repeat steps 3 to 6 for other color adjustments.
8. Make sure you have made all of the desired adjustments.
9. Press MENU/EXIT to exit and save the settings.
Saturation is the amount of that color in a video picture. Lower settings produce less saturated colors; a setting of “0” removes 
that color from the image entirely. If the saturation is too high, that color will be overpowering and unrealistic.
Using Wall Screen
In the situation where you are projecting onto a colored surface such as a painted wall which may not be white, the 
Wall Screen feature can help correct the projected picture’s color to prevent possible color difference between the 
source and projected pictures.
To use this function, go to the DISPLAY > Wall Screen menu and press  /  to select a color which is the closest 
to the color of the projection surface. There are several recalibrated colors to choose from: Light Yellow,Pink,Light
Green,Blue, and Blackboard.
RED
BLUEGREEN Yellow
Cyan Magenta