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...

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...

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...

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...

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...

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...

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...

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....

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...

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...