Epson Powerlite 7500c Multimedia Projector Users Guide

							1    Installation             32
b. Remove the small cover (as shown below) and set the DIP 
switches on the Macintosh desktop adapter to select the 
resolutions you want to use (such as 16-inch mode). See 
your Macintosh documentation for instructions.
c. Connect the small terminal of the Macintosh desktop 
adapter to the other end of the video cable.
d. Connect one end of the video-out cable that came with your 
PowerBook to the video-out connector on the back of the 
PowerBook.
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							Connecting to a Computer
33
e. Connect the other end of the PowerBook video-out cable to 
the projector video cable (with Macintosh desktop adapter 
attached).
f. Tighten the screws on all the connectors.
2. If you want to use the remote control as a mouse pointer for the 
laptop, connect the mouse cable.
Note: If you’ll be using the optional ELP Link III software, skip 
step 2, as you’ll need to connect the mouse cable included in the 
ELP Link III set instead. Follow the instructions on page 84 to 
connect the mouse cable. 
a. Connect the small end of the projector’s Mac mouse cable 
to the Mouse port on your laptop.
b. Connect the other end of the mouse cable to the projector’s 
Mouse/Com port. 
Mac mouse cable Mouse/Comport
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							1    Installation             34
3. Connect the audio cable, if needed. 
a. Connect one end of the audio cable to the Audio In jack on 
the projector. 
b. Connect the other end of the audio cable to the Audio Out 
port on your computer. 
4. If you are using the optional ELP Link III software, see Chapter 
4 for instructions for connecting the Link cables.
Note: After you turn on the projector and computer, you may need 
to choose Mirroring in the Display Control Panel to display the 
image on the LCD screen as well as the projector screen. See your 
Macintosh documentation for details. (This step is not necessary on 
some newer systems, which can detect a dual video signal.)
audio cable Audio In jack
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							Connecting to a Computer
35
Connecting to a Video Source  
 
You can connect a VCR, camcorder, DVD player, or any other 
compatible video image source to your projector.
The projector can receive composite video or S-Video. Your 
equipment has composite video if your video source has a one-pin 
RCA video jack. Your equipment has S-Video if your video source 
has a four-pin video jack. 
The type of cable you use to connect the video source to the 
projector depends on whether you have composite video or S-Video. 
For composite video, use the audio/video (A/V) cable supplied with 
the projector. For S-Video, use the S-Video cable supplied with 
your video device or obtain one from your computer dealer. 
Note: The projector is not compatible with a cable TV-style F 
connector.
You can connect the projector to an S-Video source or a composite 
video source. However, the projector automatically selects the 
S-Video as the video source. To display composite video, first 
disconnect the S-Video source.
The projector supports NTSC, PAL, and SECAM video formats, 
and automatically detects and identifies the video format. However, 
you can specify that a single broadcast format be detected (see 
page 65). Note that the projector will then be able to detect only one 
type of video format.
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							1    Installation             36
Before beginning, turn off the projector and video source if they are 
on.
1. Locate the appropriate video cable. If your video source uses a 
small, round, one-prong composite (RCA) video connector, 
you’ll need the audio/video (A/V) cable that comes with the 
projector. If your video source uses a large, round, four-prong 
S-Video connector, you will need to purchase the appropriate 
cable or use the cable that came with your video source.
2. For composite video, connect the yellow RCA plug on one end 
of the audio/video cable to the projector’s Video In jack. 
Connect the other yellow RCA plug to the video-out jack of 
your video source. 
Connect the other plugs on the audio/video cable to the Audio 
jacks of the projector: insert the white plug into the L jack and 
the red plug into the R jack. Connect the plugs at the other end 
of the audio/video cable to the audio output jacks of the video 
source. 
audio/video cable
Video In port
L Audio
R Audio
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							Connecting to an External Speaker or PA System
37
3. For S-Video, insert one end of an S-Video cable into the 
projector’s S-Video In connector. Insert the other end into the 
S-Video-Out jack of your video source.
Connecting to an External Speaker or PA System 
  
Although the projector’s internal speakers are enough for most 
small- or medium-size rooms, you can connect the projector to an 
external speaker or public address (PA) system for large rooms or to 
gain maximum benefit from the projector’s built-in 3D sound 
function.
To connect the projector to an external sound system, you need to 
obtain an RCA-to-3.5 mm stereo audio cable from your computer 
dealer.
S-Video cable S-Video connector
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							1    Installation             38
Before beginning, turn off the projector and speaker or PA system if 
they are on.
1. Connect the cable’s 3.5 mm stereo miniplug to the projector’s 
Audio Out jack. 
2. Connect the RCA plugs to the external amplified speaker or PA 
system. Insert the cable’s red plug into the Audio R jack, and 
the white plug into the Audio L jack.
Audio Out jackstereo audio cable
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							39
2Using the Projector
T
his chapter provides the following information about using your 
projector:

Turning the equipment on and off

Positioning the projector relative to the screen

Focusing and positioning the screen image

Controlling the projector with the remote control and 
the control panel

Monitoring the projector’s operating status
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							2    Using the Projector             40
The illustration below identifies the parts of your projector.
control panel
status lights
speakersadjustable foot
foot adjust levers
infrared receiver
projection
lens/focus/zoom
hand strap
connectors
rear feet (left   foot not visible)
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							Turning the Equipment On and Off
41
Turning the Equipment On and Off
It’s best to turn on the projector and its attached equipment in the 
following order:
1. Video source (such as a VCR), if your video source is not your 
computer
2. Audio source (if different from computer or video source)
3. External amplified speaker or PA system (if necessary)
4. Computer
5. Projector (see instructions below)
When you are ready to turn off the equipment, do so in the reverse 
order.
Turning the Projector On and Off 
1. Remove the projector lens cap. 
2. Connect one end of the power cord to the projector’s power 
inlet, and connect the other end to a grounded electrical outlet.
3. Turn on the main power switch located at the rear of the 
projector and wait until the power light remains orange.
4. Press the Power button on the remote control or control panel. 
The power light flashes green as the projector warms up. When 
the projector is fully warmed up, this light remains green.
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