Epson Projector Ex31 User Manual

							Setting Up the Projector21
Additional Components
Depending on how you plan to use the projector, you may need 
additional components:
■To receive an HDMI signal from your video device, you’ll need 
an HDMI cable (EX51/EX71 only). One may be provided with 
your video equipment.
■To receive a component video signal from a DVD player or other 
video device, you’ll need a component-to-VGA video cable. One 
may be included with your video equipment, or you can purchase 
the ELPKC19 cable from Epson. See “Optional Accessories” on 
page 16.
■To receive an S-Video signal, you’ll need an S-Video cable. One 
may be included with your video equipment, or you can purchase 
one from Epson. See “Optional Accessories” on page 16.
■To receive an audio signal, you’ll need an RCA-type audio cable 
with two male plugs, or a stereo mini-jack audio adapter cable 
(with red and white jacks on one end) for the EX31.
Positioning the Projector
If the projector isn’t already installed in the room you’re using, you’ll 
probably want to place it on a table in front of the screen. This lets 
you stand in the front of the room, face the audience, and remain 
close enough to the equipment to be able to control it.
Keep these considerations in mind as you position the projector:
■Place the projector on a sturdy, level surface.
■Make sure there is plenty of space for ventilation around and 
under the projector.
■Make sure the projector is within 5.9 feet (1.8 meters) of a 
grounded electrical outlet or extension cord. 
						

							22Setting Up the ProjectorImage size increases with distance, but can vary depending on the 
aspect ratio (image shape), how you zoom into the image, and 
whether you’ve adjusted other image settings. Use the illustrations and 
tables below to help you determine the projection distance.
You can also use the Image Size Calculator
 on the Epson website.
EX31 (4:3 images)
Center of 
lensCenter of 
lens
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
30 inches
(76 cm)34 to 47 inches
(87 to 119 cm)–2 inches
(–5 cm)
50 inches
(127 cm)58 to 79 inches
(147 to 200 cm)–3.3 inches
(–8 cm)
60 inches
(152 cm)70 to 95 inches
(177 to 240 cm)–3.9 inches
(–10 cm)
80 inches
(203 cm)93 to 126 inches
(237 to 321 cm)–5.2 inches
(–13 cm)
100 inches
(254 cm)117 to 158 inches
(297 to 402 cm)–6.5 inches
(–17 cm)
150 inches
(381 cm)176 to 238 inches
(447 to 605 cm)–9.8 inches
(–25 cm)
200 inches
(508 cm)235 to 318 inches
(597 to 807 cm)–13.1 inches
(–33 cm) 
						

							Setting Up the Projector23
EX31 (16:9 images)
EX51 (4:3 images)
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
30 inches
(76 cm)37 to 51 inches
(95 to 130 cm)+0.3 inch
(+1 cm)
50 inches
(127 cm)63 to 86 inches
(161 to 218 cm)+ 0.5 inch
(+1 cm)
60 inches
(152 cm)76 to 103 inches
(193 to 262 cm)+0.6 inch
(+2 cm)
80 inches
(203 cm)102 to 138 inches
(259 to 350 cm)+0.8 inch
(+2 cm)
100 inches
(254 cm)128 to 173 inches
(324 to 438 cm)+1.1 inches
(+3 cm)
150 inches
(381 cm)192 to 259 inches
(487 to 659 cm)+1.6 inches
(+4 cm)
200 inches
(508 cm)256 to 346 inches
(651 to 880 cm)+2.1 inches
(+5 cm)
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
30 inches
(76 cm)35 to 42 inches
(89 to 107 cm)–2 inches
(–5 cm)
40 inches
(102 cm)47 to 56 inches
(119 to 143 cm)–2.7 inches
(–7 cm)
50 inches
(127 cm)59 to 71 inches
(150 to 180 cm)–3.3 inches
(–8 cm)
60 inches
(152 cm)71 to 85 inches
(180 to 217 cm)–4 inches
(–10 cm)
80 inches
(203 cm) 95 to 114 inches
(241 to 290 cm)–5.3 inches
(–14 cm)
100 inches
(254 cm)119 to 143 inches
(302 to 363 cm)–6.7 inches
(–17 cm)
150 inches
(381 cm)179 to 215 inches
(454 to 546 cm)–10 inches
(–25 cm)
200 inches
(508 cm)239 to 287 inches
(607 to 729 cm)–13.3 inches
(–34 cm)
250 inches
(635 cm)299 to 359 inches
(759 to 912 cm)–16.7 inches
(–42 cm) 
						

							24Setting Up the ProjectorEX51 (16:9 images)
EX71 (16:10 image)
300 inches
(762 cm)359 to 431 inches
(912 to 1095 cm)–20 inches
(–51 cm)
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
30 inches
(76 cm)38 to 46 inches
(97 to 117 cm)+0.3 inch
(+1 cm)
40 inches
(102 cm)51 to 62 inches
(130 to 156 cm)+0.4 inch
(+1 cm)
50 inches
(127 cm)64 to 77 inches
(163 to 196 cm)+0.5 inch
(+1 cm)
60 inches
(152 cm)77 to 93 inches
(196 to 236 cm)+0.5 inch
(+1 cm)
80 inches
(203 cm)103 to 124 inches
(263 to 316 cm)+0.7 inch
(+2 cm)
100 inches
(254 cm)130 to 156 inches
(329 to 396 cm)+0.9 inch
(+2 cm)
150 inches
(381 cm)195 to 234 inches
(495 to 595 cm)+1.4 inches
(+3 cm)
200 inches
(508 cm)260 to 313 inches
(661 to 794 cm)+1.8 inches
(+5 cm)
250 inches
(635 cm)326 to 391 inches
(827 to 994 cm)+2.3 inches
(+6 cm)
275 inches
(699 cm)358 to 430 inches
(910 to 1093 cm)+2.5 inches
(+6 cm)
Diagonal screen 
sizeProjection distance (A)
Wide to Tele Offset (B)
40 inches
(102 cm)44 to 53 inches
(111 to 134 cm)–3 inches
(–8 cm)
50 inches
(127 cm)55 to 66 inches
(139 to 168 cm)–3.8 inches
(–10 cm)
60 inches
(152 cm)66 to 79 inches
(168 to 202 cm)–4.5 inches
(–12 cm)
80 inches
(203 cm)88 to 106 inches
(225 to 270 cm)–6.1 inches
(–15 cm) Screen sizeProjection distance (A)
Wide to Tele Offset (B) 
						

							Setting Up the Projector25
EX71 (4:3 image)
100 inches
(254 cm)111 to 133 inches
(281 to 338 cm)–7.6 inches
(–19 cm)
150 inches
(381 cm)167 to 200 inches
(424 to 509 cm)–11.4 inches
(–29 cm)
200 inches
(508 cm)223 to 268 inches
(566 to 680 cm)–15.1 inches
(–38 cm)
320 inches
(813 cm)357 to 429 inches
(907 to 1089 cm)–24.2 inches
(–62 cm)
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
40 inches
(102 cm)50 to 60 inches
(126 to 152 cm)–3.4 inches
(–9 cm)
50 inches
(127 cm) 62 to 75 inches
(158 to 190 cm)–4.3 inches
(–11 cm)
60 inches
(152 cm) 75 to 90 inches
(190 to 229 cm)–5.1 inches
(–13 cm)
80 inches
(203 cm)100 to 121 inches
(255 to 306 cm)–6.9 inches
(–17 cm)
100 inches
(254 cm)126 to 151 inches
(319 to 383 cm)–8.6 inches
(–22 cm)
150 inches
(381 cm)189 to 227 inches
(480 to 577 cm)–12.9 inches
(–33 cm)
200 inches
(508 cm)252 to 303 inches
(641 to 770 cm)–17.1 inches
(–44 cm)
280 inches
(711 cm)354 to 425 inches
(898 to 1079 cm–24 inches
(–61 cm) Diagonal screen 
sizeProjection distance (A)
Wide to Tele Offset (B) 
						

							26Setting Up the ProjectorEX71 (16:9 image)
Projector Placement Options
When projecting from the front, you should place the projector 
directly in front of the center of the screen, facing the screen squarely. 
The center of the lens should be about level with the bottom of the 
screen.
If you place the projector below screen level, you may need to tilt it up 
by extending the front adjustable foot. Tilting the projector causes the 
image to become “keystone” shaped, bu/t you can correct the 
distortion (see page 47). The EX51/EX71 may be able to correct the 
distortion automatically.
Screen sizeProjection distance (A)
Wide to Tele Offset (B)
40 inches
(102 cm)45 to 54 inches
(114 to 137 cm)–2 inches
(–5 cm)
50 inches
(127 cm)56 to 68 inches
(143 to 172 cm)–2.5 inches
(–6 cm)
60 inches
(152 cm)68 to 82 inches
(172 to 208 cm)–3 inches
(–8 cm)
80 inches
(203 cm) 91 to 109 inches
(231 to 278 cm)–4 inches
(–10 cm)
100 inches
(254 cm)114 to 137 inches
(289 to 348 cm)–5.1 inches
(–13 cm)
150 inches
(381 cm) 171 to 206 inches
(435 to 523 cm)–7.6 inches
(–19 cm)
200 inches
(508 cm)229 to 275 inches
(582 to 699 cm)–10.1 inches
(–26 cm)
310 inches
(787 cm)356 to 427 inches
(903 to 1084 cm)–15.7 inches
(–40 cm)
note
After positioning the 
projector, you may want to 
connect a Kensington 
MicroSaver
® anti-theft 
device to the lock port on the 
projector. You can purchase 
this from Epson; see 
page 16.
Front projection 
						

							Setting Up the Projector27
You can also install the projector in three other viewing setups: ceiling 
projection, rear projection onto a semi-transparent screen, or 
rear/ceiling projection.
To project from overhead, you’ll need the optional ceiling mounting 
hardware (see page 16). You’ll also need to select the appropriate 
Projection setting in the projector’s Extended menu to orient the 
image correctly (see page 71).
Connecting to a Computer
You can connect the projector to a Windows computer using the 
projector’s 
TypeB USB port. This lets you carry a lightweight cable 
with you when you transport the projector (see page 28).
You can connect the projector to any computer that has a standard 
video output (monitor) port, including desktop models, PC notebook 
computers, Macintosh PowerBook
® and iBook® computers, and 
hand-held devices. See page 30 for instructions.
To play sound through the projector, connect an audio cable (see 
page 37).
You may be able to use your remote control as a wireless mouse when 
projecting from a computer (see page 56).
Rear projectionCeiling projectionRear/ceiling projection 
						

							28Setting Up the Projector
Connecting to the USB Port
You can connect a Windows Vista, XP, or Windows 2000 (SP4) 
computer to the projector’s 
TypeB (square)  USB port and 
project your computer’s display. A USB 2.0 connection 
(recommended) provides better picture quality and response than 
USB 1.1.
The first time you connect a computer to the projector’s USB port, 
software from the projector is installed on your computer. 
1. Follow the instructions beginning on page 40 to turn on the 
projector.
2. Make sure the 
USB Type B setting on the Extended menu is set 
to 
USB Display (see page 70).
3. Turn on your computer.
4. Connect the square end of a USB cable to the projector’s 
TypeB 
(square) USB port.
note
The USB Display feature 
does not support Mac OS.
USB TypeB port EX31
EX51/EX71USB TypeB port 
						

							Setting Up the Projector29
5. Connect the flat end of the cable to any available USB port on 
your notebook or desktop computer.
Messages appear on your computer screen as the projector is 
recognized and the software is installed automatically.
6. Follow the instructions on the screen to install the Epson USB 
Display software. If you see a “Digital Signature Warning,” select 
Continue or Continue Anyway. (You see these instructions only 
the first time you connect.)
After the software is installed, you see your computer’s current 
desktop displayed by the projector. You can switch the projector 
to other image sources using the 
Source Search or Search 
button on the remote control or the projector.
7. You can connect an optional audio cable if you want to play 
sound through the projector (see page 37). 
When you’ve finished making connections, see Chapter 2 for 
instructions on displaying and adjusting the image.
When you’re done projecting from your computer, disconnect the 
USB cable.
note
If the software does not 
install automatically, you 
can install it manually. 
						

							30Setting Up the Projector
Connecting to the VGA Computer Port
You can connect to the projector using the VGA computer cable that 
came with it (the monitor port on your computer must be a D-sub 
15-pin port). 
1. Connect one end of the VGA computer cable to the projector’s 
Computer (Component Video) port and the other end to your 
computer’s monitor port.
2. You may need to change the 
Input Signal setting in the 
projector’s Signal menu to 
RGBor Auto (see page 68).
3. You can connect an optional audio cable to play sound through 
the projector (see page 37). 
4. You may also be able to use the remote control as a wireless mouse 
(see page 56).
caution
Don’t try to force a 
connector to fit a port with a 
different shape or number of 
pins. You may damage the 
port or connector, or the 
device you are trying to 
connect.
Computer (Component 
Video) port EX31
EX51/EX71Computer (Component 
Video) port