Epson Powerlite 74c Multimedia Projector Users Guide

							Welcome11
Save all packaging in case you need to ship the projector. Always use 
the original packaging (or equivalent) when you need to send the 
projector to another location.
If you are moving the projector by hand, use the carrying case 
included with the projector.
Additional Components
Depending on how you plan to use the projector, you may need 
additional components:
■To receive an S-Video signal, you need an S-Video cable. One is 
usually provided with your video device, or you can purchase it 
from EPSON. See page 12.
■To receive a component video signal from a VCR or other video 
device, you need a D-sub, 15-pin, VGA-to-component video 
cable, which is available from EPSON. See page 12.
■To amplify your computer’s audio through the projector’s sound 
system, you need a computer audio cable (male-to-male 3.5-mm 
stereo miniplug cable). See your computer or electronics dealer to 
obtain this cable. 
■Some older PowerBooks and Macintosh desktop models may 
need the Macintosh adapter set shown on page 17 (available from 
EPSON, as described on page 12). Older iMac systems may need 
a special adapter to provide a VGA output port; see your 
computer dealer.  
						

							12Welcome
Optional Accessories
To enhance your use of the projector, EPSON provides the following 
optional accessories:  
You can purchase these accessories from your dealer, by calling 
EPSON at (800) 873-7766, or by visiting the EPSON Store
SM
at www.epsonstore.com (U.S. sales only). In Canada, please call 
(800) 463-7766 for dealer referral. 
Product Product number
Replacement lamp  V13H010L27 
Air filter set (includes 5 filters) V13H134A05
Samsonite
® wheeled soft case
Soft shoulder bags (projector/laptop)
ATA molded hard-shell carrying caseELPKS24
ELPKS43
ELPKS45
Replacement remote control V12H007T13
Component video cable (VGA-to-RCA) ELPKC19
S-Video cable ELPSV01
Macintosh adapter set  ELPAP01
50-inch portable screen
60-inch portable pop-up screen
80-inch portable pop-up screenELPSC06
ELPSC07
ELPSC08
High resolution document imager
High resolution document cameraELPDC02
V12H064020
Kensington
® security lock ELPSL01
Ceiling mount
False ceiling plate
Suspension adapterELPMB39
ELPMBFCP
ELPMBAPL 
						

							Setting Up the Projector13
1
Setting Up the Projector
This chapter tells you how to set up the projector and connect it to a 
computer or video source. You can connect up to two devices 
simultaneously: two computers or two video sources or one of each. 
You’ll find instructions for the following in this chapter:
■Positioning the projector
■Connecting to a computer
■Connecting to video sources 
						

							14Setting Up the Projector
Positioning the Projector
Before connecting the projector, you 
need to decide where to place it. If 
you’re setting up the projector yourself 
and it 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, as shown. 
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. Try to 
leave as much space as possible between the projector and the screen to 
get a good-size image. 
Place the projector somewhere between 3 and 35 feet from the screen. 
Use the figure below to help you determine exactly how far. Image size 
increases with distance, but can vary depending on how you’ve 
adjusted the optical zoom and other settings.
Also keep these considerations in mind: 
■Place the projector on a sturdy, level surface.
■Make sure there is plenty of space for ventilation around and 
under the projector. Do not set the projector on top of loose 
papers that could block the vents under the projector. 
■Make sure the projector is within 6 feet of a grounded electrical 
outlet or extension cord. 
30 to 35.5 feet 5.9 to 6.8 feet 2.9 to 3.4 feet
note
You can download the 
Projection Distance 
Calculator program from the 
Drivers and Downloads 
section of EPSON’s web site: 
http://epson.com.  
						

							Setting Up the Projector15
Try to place the projector directly in front of the center of the screen, 
facing it toward the screen squarely. If the projector isn’t positioned 
this way, the image will be “keystone” shaped, instead of square or 
rectangular.
If you place the projector below the level of the screen, you’ll have to 
tilt it up by extending the feet. This also causes the image to lose its 
rectangular shape, but the Auto Keystone feature corrects the 
distortion automatically. If the image does not regain its rectangular 
shape, the tilt angle is greater than 15° or the Auto Keystone feature 
may have been disabled. To turn it on, see page 52. To adjust it 
manually, see page 35. 
Other Installations
You can also project from behind the screen or from the ceiling, with 
the projector mounted upside-down: 
To project from overhead, you’ll need the optional ceiling mount 
hardware. (See page 12 for ordering information.) You’ll also need to 
select 
Front/Ceiling or Rear/Ceiling for the Projection option in the 
Advanced menu. To project from the rear, select 
Rear. See page 53 
for more information.
note
The Auto Keystone feature 
corrects vertical distortion 
automatically. For more 
information, see page 35.
Front/ceiling projection Rear projection (using a 
translucent screen)Rear/ceiling projection (using 
a translucent screen) 
						

							16Setting Up the Projector
Connecting to a Computer
You can connect the PowerLite projector to any Macintosh or 
IBM
®-compatible PC that has a standard video output (monitor) 
port, including PC notebook and laptop computers, Macintosh 
PowerBooks and iBooks, and hand-held devices. You can connect two 
computers at the same time. 
Follow the instructions in this section to:
■Connect the VGA computer cable to the projector 
■Connect your computer’s monitor cable to the projector (if you 
want to view your display on the desktop computer screen)
■Connect the mouse cable (if you want to use the remote control as 
a mouse)
■Connect an optional audio cable (if you’ll be projecting with 
audio) 
Connecting the VGA Computer Cable
Before you start, make sure your computer and the projector are 
turned off.
1. If you are connecting the projector to a desktop computer, 
disconnect the monitor cable from your computer.
2. Locate the VGA computer cable that 
came with the projector.
note
If you have an iBook with an 
RCA video-out port, follow 
the instructions for 
connecting to a video device 
on page 22.
VGA computer cable
note
If your computer provides 
video output through BNC 
connectors, you can use the 
optional VGA-to-BNC cable 
instead. See page 12. 
						

							Setting Up the Projector17
3. Connect one end of the cable to the projector’s 
Computer1/Component Video1 or the 
Computer2/Component Video2 port. If you are going to 
connect your computer monitor to the projector for simultaneous 
display, use the 
Computer1/Component Video1 port. 
4. Connect the other end of the cable to your computer’s video-out 
or monitor port. 
If you’re using a PowerBook or iBook and you can’t connect the 
cable, you may need to use the Macintosh desktop adapter as 
shown below (available from EPSON; see page 12).
To use the adapter, remove its cover as 
shown and set its DIP switches according 
to the resolution you want to use, such as 
16-inch mode. See your Macintosh 
documentation for instructions.
Replace the cover and connect the 
adapter to the free end of the computer 
video cable. Then plug the cable (with 
the adapter) into the video port on your 
Macintosh.
5. If you want to view the display 
simultaneously on your computer monitor and the projector 
screen, see “Connecting a Monitor” on page 18.
6. Tighten the screws on the connectors. 
						

							18Setting Up the ProjectorAfter projection starts, select the correct source (either 
Computer1 or 
Computer2) when you want to project this source. See page 30.
If you don’t need to make any other connections, you can plug in 
your projector and turn it on. See page 28 for instructions.
 
Connecting a Monitor
If you want to see your presentation close-up as well as on the screen, 
you can connect an external monitor to the projector. This lets you 
view images on your computer monitor while the projector is in 
standby mode (plugged in but not turned on) and check your 
presentation or switch between picture sources even if you’ve pressed 
the 
A/V Mute button to turn off projection on the screen. 
Simultaneous display is possible only when the computer is connected 
to the projector’s 
Computer1/Component Video1 port.
Make sure the projector and computer are off. Then connect the 
monitor’s cable to the projector’s 
Monitor Out port, as shown:
If you don’t need to make any other connections, you can plug in 
your projector and turn it on. See page 28 for instructions.
note
Some LCD monitors may 
not be able to display the 
image correctly. If you have 
trouble displaying the 
image, connect a multiscan 
monitor. If you’re projecting 
computer images, make sure 
the computer’s refresh rate is 
set to 65 Hz or greater. 
						

							Setting Up the Projector19
Connecting the Cable for Remote Mouse 
Control
Using the remote control as a wireless mouse lets you click through 
slideshow-style presentations, such as PowerPoint, from up to 20 feet 
away. This makes it easy to deliver your presentation, since you won’t 
need to stand near your computer. 
To use the wireless mouse function, your system must have a USB 
port and the full version of one of these operating systems: 
1. If you are using a desktop computer, disconnect the mouse cable 
from your computer.
2. Locate the USB mouse cable that came with the projector and 
connect the square end of the cable to the projector’s   USB 
port.
3. Connect the flat end of the cable to an available USB port on your 
computer.
4. If necessary, configure your laptop to work with an external 
mouse.
If you don’t need to make any other connections, you can plug in 
your projector and turn it on. See page 28 for instructions.
Windows Macintosh
Windows 98, 2000, Me, and XP Macintosh OS 8.6 to 9.2, OS X 
						

							20Setting Up the Projector
Amplifying Computer Audio
Your computer probably has its own sound system; however, it may 
not be adequate for your presentation. If you need more volume, you 
can connect a computer audio cable to take advantage of the 
projector’s built-in amplifier and speaker. You can obtain a computer 
audio cable (3.5-mm stereo miniplug cable) from a computer or 
electronics dealer.
1. Connect one end of the audio cable to the 
Audio1 jack on the 
projector.
2. Connect the other end of the audio cable to your laptop’s
 headphone jack or   audio-out jack, or your desktop’s 
speaker or audio-out port.
3. After you turn on your projector, open the Audio menu and make 
sure 
Audio 1 is selected for the Audio Input setting. See page 51. 
If you don’t need to make any other connections, you can plug in 
your projector and turn it on. See page 28 for instructions.note
The Audio menu also lets 
you adjust the volume.