Mitsubishi Tx20u Projector User Manual

							DLP™ PROJECTOR
MODEL
TX20U
TW21U
User Manual
This User Manual is important to you.
Please read it before using your projector.
TX20U
TW21U 
						

							EN-2 The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user 
to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of 
sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of 
important operating and maintenance (servicing) instructions in the literature accompanying the 
appliance.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, 
RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE 
EXPOSURE.
NOTE:
SINCE THIS PROJECTOR IS PLUGGABLE EQUIPMENT, THE SOCKET-OUTLET SHALL BE INSTALLED NEAR 
THE EQUIPMENT AND SHALL BE EASILY ACCESSIBLE.
WARNING
Use the attached specified power supply cord. If 
you use another power supply cord, it may 
cause interference with radio and television 
reception.CAUTION
The attached power cord is to be used 
exclusively for this product. Never use it for 
other products.
This apparatus must be grounded.
DO NOT LOOK DIRECTLY INTO THE LENS 
WHEN THE PROJECTOR IS IN THE POWER 
ON MODE.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC 
SHOCK, DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE 
PERSONNEL.
CAUTION 
						

							EN-3
Important safeguards  .................................................................................................................... 4
Overview ........................................................................................................................................ 7
Remote control  .............................................................................................................................. 9
Installation .................................................................................................................................... 10
Basic connections  ....................................................................................................................... 14
Preparation .................................................................................................................................. 17
Basic operation ............................................................................................................................ 19
Menu operation ............................................................................................................................ 24
Image adjustment  ........................................................................................................................ 35
Network settings .......................................................................................................................... 40
Advanced display utilities  ............................................................................................................ 46
Advanced features .............................................................................................................
.......... 62
Lamp replacement  ....................................................................................................................... 67
Troubleshooting ........................................................................................................................... 70
Indicators ..................................................................................................................................... 76
Specifications .............................................................................................................................. 77
Contents
Trademark, Registered trademark
 DLP™, Digital Micromirror Device, DMD, and BrilliantColor™ are all trademarks of Texas Instruments.
 HDMI, the HDMI logo and High-Definition  Multimedia Interface are trademarks or registered trademarks of HDMI 
Licensing LLC.
 Microsoft, Windows, Windows Vista, Windows Server, MultiPoint, Excel, and PowerPoint are either registered 
trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
 Mac, Mac OS, OS X, Finder, and Apple Store are trademarks of Apple Inc.
 Intel and Pentium are trademarks of Intel Corporation in the U.S. and/or other countries.
 PowerPC is a trademark of International Business Machines Corporation, registered in many jurisdictions 
worldwide.
 IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
 Android and Google are trademarks of Google Inc.
 MirrorOp, MirrorOp Receiver, and WiFi-Doc are registered trademarks, trademarks, or trade names of AWIND Inc.
 Wi-Fi is a registered trademark of the Wi-Fi Alliance.
 The trademark of PJLink is trademark applied for registration or registered trademark in Japan, the United States, 
and other countries and areas.
 Crestron RoomView Connected is a trademark of Crestron Electronics, Inc.
 Other brand or product names are trademarks or registered trademarks of their respective holders. 
						

							EN-4
Please read all these instructions regarding your 
projector and retain them for future reference. Follow all 
warnings and instructions marked on the projector.
1. Read instructions
All the safety and operating instructions should be 
read before the appliance is operated.
2. Retain instructions
The safety and operating instructions should be 
retained for future reference.
3. Warnings
All warnings on the appliance and in the operating 
instructions should be adhered to.
4. Instructions
All operating instructions must be followed.
5. Cleaning
Unplug this projector from the wall outlet before 
cleaning it. Do not use liquid aerosol cleaners. Use a 
damp soft cloth for cleaning.
6. Attachments and equipment
Never add any attachments and/or equipment 
without the approval of the manufacturer as such 
additions may result in the risk of fire, electric shock 
or other personal injury.
7. Water and moisture
Do not use this projector near water or in contact 
with water.
8. Accessories
Do not place this projector on an unstable cart, 
stand, tripod, bracket or table. Use only with a cart, 
stand, tripod bracket, or table recommended by the 
manufacturer or sold with the projector. Any 
mounting of the appliance should follow the 
manufacturer’s instructions and should use a 
mounting accessory recommended by the 
manufacturer.
An appliance and cart combination should be 
moved with care. Quick stops, excessive force and 
uneven surfaces may cause the appliance and cart 
combination to overturn.
9. Ventilation
Slots and openings in the cabinet are provided for 
ventilation, ensuring reliable operation of the 
projector and to protect it from overheating. Do not 
block these openings or allow them to be blocked 
by placing the projector on a bed, sofa, rug, or 
bookcase. Ensure that there is adequate ventilation 
and that the manufacturer’s instructions have been 
adhered to.10.Power sources
This projector should be operated only from the type 
of power source indicated on the marking label. If 
you are not sure of the type of power, please consult 
your appliance dealer or local power company.
11.Power-cord protection
Power-supply cords should be routed so that they 
are not likely to be walked on or pinched by items 
placed upon or against them. Pay particular 
attention to cords at plugs, convenience 
receptacles, and points where they exit from the 
appliance. Do not put the power cord under a 
carpet.
12.Overloading
Do not overload wall outlets and extension cords as 
this can result in a fire or electric shock.
13.Objects and liquids
Never push objects of any kind through openings of 
this projector as they may touch dangerous voltage 
points or short-out parts that could result in a fire or 
electric shock. Never spill liquid of any kind on the 
projector.
14.Servicing
Do not attempt to service this projector by yourself. 
Refer all servicing to qualified service personnel. 
15.Damage requiring service
Unplug this projector from the wall outlet and refer 
servicing to qualified service personnel under the 
following conditions:
(a) If the power-supply cord or plug is damaged.
(b) If liquid has been spilled, or objects have fallen
into the projector.
(c) If the projector does not operate normally after
you follow the operating instructions. Adjust only
those controls that are covered by the operating
instructions. An improper adjustment of other
controls may result in damage and may often
require extensive work by a qualified technician
to restore the projector to its normal operation.
(d) If the projector has been exposed to rain or
water.
(e) If the projector has been dropped or the cabinet
has been damaged.
(f) If the projector exhibits a distinct change in per-
formance - this indicates a need for service.
16.Replacement parts
When replacement parts are required, be sure that 
the service technician has used replacement parts 
specified by the manufacturer or parts having the 
same characteristics as the original part. 
Unauthorized substitutions may result in fire, electric 
shock or other hazards.
17.Safety check
Upon completion of any service or repair to this 
projector, ask the service technician to perform 
safety checks determining that the projector is in a 
safe operating condition.
Important safeguards 
						

							EN-5
Important safeguards (continued)
WARNING:
Unplug immediately if there is something 
wrong with your projector.
Do not operate if smoke, strange noise or odor comes 
out of your projector. It may cause fire or electric shock. 
In this case, unplug immediately and contact your 
dealer.
Never remove the cabinet.
This projector contains high voltage circuitry. An 
inadvertent contact may result in an electric shock. 
Except as specifically explained in User Manual, do not 
attempt to service this product by yourself. Please 
contact your dealer when you want to fix, adjust, or 
inspect the projector.
Do not modify this equipment.
It can lead to fire or electric shock.
Do not keep using the damaged projector.
If the projector is dropped and the cabinet is damaged, 
unplug the projector and contact your dealer for 
inspection. It may lead to fire if you keep using the 
damaged projector.
Be sure to unplug the power cord from the 
wall outlet if the projector is fractured or 
deformed.
Otherwise, it may result in fire or electric shock. Ask 
your dealer for repair. 
Do not face the projector lens to the sun.
It can lead to fire.
Use correct voltage.
If you use incorrect voltage, it can lead to fire.
Do not place the projector on uneven 
surface. 
Place the projection on a leveled and stable surface 
only. 
Do not look into the lens when it is 
operating.
It may hurt your eyes. Never let children look into the 
lens when it is on.
Do not put any objects immediately in front 
of the lens while the lamp is on.
The lens and the objects get hot and can cause fire or 
breakdown.
Do not unplug the power cord during 
operation.
It can lead to lamp breakage, fire, electric shock or 
other trouble.
Do not touch the exhaust vents and bottom 
plate.
Do not touch them or put other equipment close to the 
exhaust vents because they become hot during 
operation. The heated exhaust vents and bottom plate 
may cause injury or damage to other equipment. Also, 
do not put the projector on a desk that is easily affected 
by heat.
Do not look into the exhaust vents when 
projector is operating.
Heat, dust, etc. may blow out of it and hurt your eyes.
Do not block the intake and exhaust vents.
If they are blocked, heat may be generated inside the 
projector, causing deterioration in the projector quality 
and fire.
Do not use flammable solvents (benzene, 
thinner, etc.) and flammable aerosols near 
the projector.
Flammable substances may ignite causing fire or 
breakdown because the temperature inside the 
projector rises very high while the lamp is illuminating. 
Do not use the projector with condensation 
on it. 
It can lead to breakdown or other failure. 
Place of installation
For safety’s sake, do not use the projector at any place 
subjected to high temperature and high humidity. 
Please maintain an operating temperature, humidity, 
and altitude as specified below.
 Operating temperature: between +41°F (+5°C) and
+95°F (+35°C)
 Operating humidity: between 30% and 90%
 Never put any heat-producing device under the pro-
jector to prevent the projector from being over-
heated.
 Do not install the projector at a place that is unstable
or subject to vibration.
 Do not install the projector near any equipment that
produces a strong magnetic field. Also refrain from
installing the projector near any cable carrying a
large amount of current.
 Place the projector on a solid, vibration-free surface.
Otherwise it may fall, causing serious injury or dam-
age.
 Do not stand the projector on its end. It may fall,
causing serious injury or damage.
 Slanting the projector more than ±10° (right and left)
or ±15° (front and rear) may cause trouble or explo-
sion of the lamp.
 Do not place the projector near air-conditioning unit,
heater, or humidifier to avoid hot or moist air to the
exhaust and ventilation hole of the projector. 
						

							EN-6
Important safeguards (continued)
 Do not place the projector in the following places.
Otherwise, a short circuit, heat generation, or melt-
ing of the power cord coating may occur, causing
fire, electric shock, product failure, or deformation.
 Outdoors or non air-conditioned place
 Place where a gas such as a hydrogen sulfide is
generated (i.e. hot spring)
 Place where there is too much salt such as near
the coast
 Be sure to use this projector at an altitude of less
than 1500 meters.
Do not place a container containing water 
or other liquid on the projector.
If water spills on or enters the projector, it may result in 
fire or electric shock.
Do not put any object that is heavy or larger 
than the outer frame on the projector.
Otherwise, the object may fall losing its balance and 
cause injury.
Do not subject the projector to strong 
shocks or vibrations. Do not handle the 
projector roughly.
The projector may be damaged, resulting in fire or 
electric shock.
When removing the lamp from the ceiling-
mounted projector 
Be sure to use the lamp replacement attachment 
designed specifically for this projector when replacing 
the lamp with a new one. Lamp fragments may fall from 
the inside if the lamp were broken.
Do not put the projector in the soft case 
with the power cord and cables connected.
The projector, power cord, or cables may be damaged. 
						

							EN-7
Control panel
Terminal panel
1FOCUS ring
2 ZOOM ring
3 Control panel
4 Remote control sensor
5Exhaust vent
6 Terminal panel
7 Speaker
8 Adjustment feet
9 Lock bar
10 Lamp cover
Caution:
• Do not replace the lamp immediately after using the 
projector because the lamp would be extremely hot 
and it may cause burns.
1 POWER button (ON/STANDBY)
The status is changed between ON and STANDBY.
2 POWER indicator
3 MENU button
4 STATUS indicator
5 KEYSTONE/ENTER button
6 AUTO POSITION/p button
7 DIGITAL ZOOM/W button
8VOLUME/T button
9AV MUTE/X button
10 SOURCE button
1 Power jack
2 COMPUTER/COMPONENT VIDEO IN terminal 
(1, 2) (mini D-SUB 15-pin)
3 MONITOR OUT terminal (mini D-SUB 15-pin)
4 AUDIO IN terminal (mini jack)
5AUDIO OUT terminal (mini jack)
6 S-VIDEO terminal
7 VIDEO terminal
8 SERIAL (RS-232C) terminal (D-SUB 9-pin)
9 Kensington Lock
10 LAN terminal (RJ-45)
11 HDMI terminal (1, 2) (HDMI 19-pin)
12 USB-B terminal
13 USB-A terminal
5
6
12
4
7 9 8
310
1 2
34
5
6
7
8
9
10
23
46810 111213
1 579
Overview 
						

							EN-8
Bottom side
Remote control
1 Adjustment feet
1 ON button
2 SOURCE button
3 MENU button
4 ENTER button
5 COLOR.E button
6 KEYSTONE button
7 MAGNIFY button
8 DIGITAL ZOOM button
9 TIMER button
10 STANDBY button
11 AUTO POSITION button
12 SEARCH button
13 INFO. button
14S, T, W,  X buttons
15 3D button
16 ASPECT button
17 VOLUME UP, DOWN buttons
18 AV (Audio/Video) MUTE button
19 FREEZE button
20 EFFICIENT MODE button1
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
19
20
TIMER
EFFICIENT
MODE
AUTOPOSITIONSEARCH
ENTER
3D
ASPECT SOURCE
ON STANDBY
MENU
COLOR.E
KEYSTONE
MAGNIFYAV MUTE
FREEZEINFO.
VOL
Overview (continued) 
						

							EN-9
Battery installation
Use two (AAA, R03) size batteries.
Inserting the batteries into the remote control
1. Remove the back cover of the remote control by pushing the battery compartment door in the direction of the
arrow.
2. Load the batteries making sure that they are positioned correctly (+ to +, and - to -).
 Load the batteries from - spring side, and make sure to set them tightly.
3. Replace the back cover.
Removing the batteries from the remote control
Remove the back cover of the remote control and take out the batteries.
Caution: 
 Use of a battery of wrong type may cause explosion.
 Only Carbon-Zinc or Alkaline-Manganese Dioxide type batteries should be used.
 Dispose of used batteries according to your local regulations.
 Before you dispose of the batteries, insulate them by placing insulation tape on the positive (+) and negative (-)
terminals. If you dispose of the batteries together with other conductive objects such as a metal piece, they may
short out, resulting in fire or explosion.
 Batteries may explode if misused. Do not recharge, disassemble, or dispose of in fire.
 Be sure to handle the battery according to the instructions.
 Load the battery with its positive (+) and negative (-) sides correctly oriented as indicated on the remote control.
 Keep batteries out of reach of children and pets. If children swallow the battery, see a doctor immediately.
 Remove the batteries, if the remote control is not used for a long time.
 Do not combine a new battery with an old one.
 If the solution of batteries comes in contact with your skin or clothes, rinse with water. If the solution comes in
contact with your eyes, rinse them with water and then consult your doctor.
 Do not carry or store the batteries together with metallic ballpoint pens, necklaces, coins, or hairpins. Otherwise
they may short out, causing explosion or liquid leakage and resulting in fire or injury.
 Do not store the batteries where they are exposed to direct sunlight or subjected to high temperature and high
humidity. High temperature and high humidity may cause corrosion or liquid leakage.
Operation range (of the remote control)
The maximum operation distance of the remote control is about 10 m (or about 32 feet) when the remote control is 
pointed at the remote control sensor of the projector. When the remote control is pointed to the screen, the distance 
from the remote control to the projector via the screen should be 5 m or less. However, the operation distance varies 
depending on the type of the screen used.
Important:
• Do not expose the remote control sensor to direct sunlight or fluorescent. Keep a distance at least 2 m (6.5 feet)
between the remote control sensor and the fluorescent light to ensure correct operation of the remote control.
Inverted fluorescent light, if located near the projector, may interfere the remote control.
• When you use the remote control too close to the remote control sensor, the remote control may not work correctly.Reception angle (horizontal) Reception angle (vertical)
Reception angle (vertical), ceiling mount
TIMER
EFFICIENT
MODE
AUTOPOSITIONSEARCH
ENTER
3DASPECT SOURCE
ON STANDBY
MENU
COLOR.EKEYSTONE
MAGNIFYAV  M U T E
FREEZEINFO.
VOL
30°     30°
10°20°
20°
Remote control 
						

							EN-10
Layout of TX20U
Image size varies depending on the distance between the screen and the projector.
 The above figures are approximate and may be slightly different from the actual measurements.
Layout of TW21U
Image size varies depending on the distance between the screen and the projector.
 The above figures are approximate and may be slightly different from the actual measurements.Screen size Projection distance: L
Hd
Diagonal size Width: SW Height: SH Shortest (Wide) Longest (Tele)
inch cm inch cm inch cm inch m inch m inch cm
40 102 32 81 24 61 51 1.3 62 1.6 3.6 9
60 152 48 122 36 91 77 2.0 93 2.4 5.4 14
80 203 64 163 48 122 103 2.6 125 3.2 7.2 18
100 254 80 203 60 152 129 3.3 156 4.0 9.0 23
120 305 96 244 72 183 156 4.0 187 4.8 10.8 27
150 381 120 305 90 229 195 4.9 234 6.0 13.5 34
200 508 160 406 120 305 260 6.6 313 7.9 18.0 46
250 635 200 508 150 381 325 8.3 391 9.9 22.5 57
300 762 240 610 180 457 390 9.9 - - 27.0 69
Screen size Projection distance: L
Hd
Diagonal size Width: SW Height: SH Shortest (Wide) Longest (Tele)
inch cm inch cm inch cm inch m inch m inch cm
40 102 34 86 21 54 50 1.3 62 1.6 2.6 7
60 152 51 129 32 81 76 1.9 94 2.4 4.0 10
80 203 68 172 42 108 101 2.6 126 3.2 5.3 13
100 254 85 215 53 135 127 3.2 157 4.0 6.6 17
120 305 102 258 64 162 153 3.9 189 4.8 7.9 20
150 381 127 323 79 202 191 4.8 236 6.0 9.9 25
200 508 170 431 106 269 255 6.5 315 8.0 13.2 34
250 635 212 538 132 337 319 8.1 394 10.0 16.6 42
300 762 254 646 159 404 383 9.7 - - 19.9 50
SH
Hd
LSW
A
A=B B
Installation