Epson Powerlite 7550c Users Guide

							Unpacking the Projector
13
Projector video cable
Audio cable
Audio/video (A/V) cable
PS/2
® mouse cable (for the PC)
Mac mouse cable (for the Macintosh) 
Hand strap (with 2 screws)
Soft carrying case 
						

							1    Setting Up the Projector             14
Macintosh adapter set:
Macintosh desktop adapter
Macintosh monitor adapter
You will not need all these components.
Save all packaging in case you need to ship the projector in the 
future. Always transport the projector in its original packaging (or 
the equivalent) or use a carrying case if you are carrying the 
projector by hand. (See “Transporting the Projector” on page 137 
for instructions.)
Additional Components
Depending on how you plan to use the projector, you may need 
these additional components:p
For complete control of the projector from your computer or to 
program enhanced special effects on the remote control, you 
need the optional ELP Link III kit. You can purchase the kit 
from 
your dealer or by calling EPSON Accessories at (800) 873-7766
 
(U.S. sales only). 
						

							Unpacking the Projector
15
p
To receive an S-Video signal, you will need an S-Video cable. 
(One is usually provided with your video device.) A separate 
cable is required for each video source.
p
To connect the projector to a Macintosh PowerBook, you may 
need a video-out cable and an adapter. (The video-out cable is 
provided by—or can be purchased from—Apple
 Computer for 
all PowerBooks that have video-out capability and require the 
cable. If your PowerBook doesn’t include one, see your 
Macintosh dealer. Additionally, some PowerBooks come with 
an adapter for a high-density, 15-pin, VGA connector.) 
p
To connect the projector to an external sound system, you need 
an RCA-to-3.5 mm stereo audio cable. You can obtain one from 
your computer dealer.
p
To use the remote control when the projector is not in 
line-of-sight of the remote, you need an optional infrared 
repeater. For more information, call (800) 843-5465 
or 
visit this 
web address: www.xantech.com
.
p
To connect a serial mouse cable to your computer, you may 
require a special connector, cable, or other components. You 
can obtain these items from your computer dealer. 
p
To protect your projector, you can connect a Kensington 
MicroSaver
® anti-theft device in the hole on the back of the 
projector. Contact your local computer dealer. 
						

							1    Setting Up the Projector             16
Attaching the Hand Strap
Follow the steps below to attach the hand strap to the projector with 
the two screws included with the strap.
1. Gently place the projector on its side, so you are looking at the 
bottom and the back of the projector is facing left.
Caution: Do not lift or hold the projector by its lens; this can 
damage the lens.
2. Locate the blue slider button on the bottom front of the projector 
and slide the button up until the front strap connector is fully 
extended
.
front strap connector
slider button 
						

							Attaching the Hand Strap
17
3. Place one end of the strap through the front strap connector and 
use a screwdriver to fasten one of the screws through the strap. 
Make sure the screw is securely fastened. 
4. Place the other end of the strap through the rear strap connector 
and fasten it with the other screw. (There is no slider button for 
the rear strap connector.)  
screw 
						

							1    Setting Up the Projector             18
Installing the Remote Control Batteries
You can use the remote control as a wireless mouse instead of your 
computer’s mouse to control your presentation. If you purchased the 
optional ELP Link III kit, you can assign different functions to the 
Effects buttons, and even program the buttons with your own 
customized functions. (See “Assigning Functions to the Effects 
Buttons” on page 102.) Follow these steps to install the batteries:
1. Slide off the battery compartment cover
.
2. Insert the two AA batteries included with the projector. Make 
sure the polarity of the batteries is correct. 
						

							Where to Place the Projector
19
3. Replace the battery compartment cover.
When replacing batteries, take the following precautions:p
Don’t mix old and new batteries.
p
Replace batteries as soon as they run out. If the batteries leak, 
wipe away battery fluid with a soft cloth. If fluid gets on your 
hands, wash them immediately.
p
Remove the batteries if you plan not to use the projector for a 
long period of time.
Where to Place the Projector
Before you start connecting cables, decide where you want to place 
the projector and computer or video source. Follow these 
guidelines:p
Place the projector on a sturdy, level surface within five feet of 
your computer or video source. Remember not to place the 
projector near sources of heat, or in a location where the cord is 
likely to be stepped on.
p
Because the distance between the projector and screen 
determines image size, position the projector the proper distance 
from the screen for the size image you want to project. Use the 
following table to determine the correct distance. (For more 
precise calculations, see page 52.) 
						

							1    Setting Up the Projector             20
Note: In addition to front projection, your projector supports rear 
and ceiling projection. To use rear or ceiling projection, you need 
to select the Ceiling or Rear Projection mode in the Setting menu. 
See “Changing Basic Projector Settings” on page 76 for more 
information.
Note: The projector must be between 3.3 and 53.5 feet (1.0 to 16.3 
meters) from the screen.Image size (diagonal)Horizontal distance from projector to screen
Minimum Maximum
300 inches (762 cm) 494 inches (12.6 m) 639 inches (16.3 m)
200 inches (508 cm) 328 inches (8.4 m) 423 inches (10.8 m)
100 inches (254 cm) 163 inches (4.2 m) 213 inches (5.4 m)
80 inches (203 cm)  129 inches (3.3 m) 170 inches (4.3 m)
60 inches (152 cm) 96 inches (2.5 m) 127 inches (3.2 m)
50 inches (127 cm) 80 inches (2.0 m) 105 inches (2.7 m)
40 inches (102 cm) 67 inches (1.7 m) 83 inches (2.1 m)
30 inches (76 cm) 47 inches (1.2 m) 58 inches (1.5 m)
25 inches (64 cm) 38 inches (1.0 m) 46 inches (1.2 m)
19 inches (48 cm) None 38.0 inches (1.0 m) 
						

							Connecting the Power Cord
21
Connecting the Power Cord
Connect the appropriate end of the power cord to the power inlet on 
the back of the projector, as shown below. Connect the other end to 
a grounded electrical outlet.
Connecting to a Computer
You can connect the projector to a computer capable of XGA, VGA, 
or SVGA output. The PowerLite 7550C is also capable of projecting 
SXGA images. (The projector resizes VGA and XGA images for the 
PowerLite 5550C and VGA, SVGA, and SXGA images for the 
7550C.) The following types of computers are supported:p
IBM compatible desktop or laptop PC
p
Apple Macintosh desktop computer, including Macintosh 
Quadra,
® Macintosh Centris,
® and Power Macintosh
p
Any Apple PowerBook with video-out capability 
						

							1    Setting Up the Projector             22
You can connect the projector to two video sources simultaneously 
(for example, a computer and a VCR), and you can connect a 
separate audio source for each video source. 
If you will be using the optional ELP Link III software, you’ll also 
need to connect the ELP Link III cables. See Chapter 4 for 
instructions after you finish connecting the projector to your 
computer.
Note: If you want to use the remote as a mouse and your computer 
doesn’t have a PS/2 mouse connector, you must use the ELP Link III 
kit to connect the projector to a computer.