Epson Powerlite 7500c Multimedia Projector Users Guide

							1    Installation             22
c. To also view the video on the computer monitor, connect 
the monitor cable to the projector’s Computer Out port. 
This is useful when you need to view the video output but 
the projection screen is behind you. 
d. Tighten the screws on all connectors.
2. If you want to use the remote control as a mouse pointer for the 
computer, 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 78 to 
connect the mouse cable. 
a. Disconnect the computer’s PS/2 mouse cable from the 
mouse port on the back of your computer and replace it with 
the small end of the PS/2 mouse cable included with the 
projector.
PS/2 mouse cable Mouse/Com
port
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							Connecting to a Computer
23
Note: You need the optional ELP Link III set to connect the 
projector to a computer with a serial mouse. See Chapter 4 
for more information.
b. Connect the other end of the PS/2 mouse cable to the 
projector’s Mouse/Com port. 
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 a sound card in the computer. 
4. If you are using the optional ELP Link III software, see Chapter 
4 for instructions for connecting the Link cables.      
audio cable Audio In jack
 
 
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							1    Installation             24
Connecting to a PC Laptop Computer
Before beginning, turn off the projector and computer if they are on.
1. Connect the projector video cable. 
Note: Laptop configurations vary. See your computer manual 
for the location of the ports needed to connect your projector.
a. Connect either end of the projector video cable to the 
projector’s Computer In port. 
b. Connect the other end of the projector video cable to the 
laptop’s video (monitor) port.
c. Tighten the screws on both connectors.
projector video cable Computer In port
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							Connecting to a Computer
25
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 80 to 
connect the mouse cable. 
a. Connect the small end of the PS/2 mouse cable included 
with the projector to the laptop’s mouse port.
Note: You’ll need the optional ELP Link III set to connect 
the projector to a laptop with a serial mouse. See Chapter 4 
for more information.
b. Connect the other end of the PS/2 mouse cable to the 
projector’s Mouse/Com port. 
PS/2 mouse cable Mouse/Com
port
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							1    Installation             26
3. Connect the audio cable if needed (and if your laptop has an 
Audio Out jack). 
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 
jack on your laptop. 
4. If you are using the optional ELP Link III software, see Chapter 
4 for instructions for connecting the Link cables.
audio cable Audio In jack
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							Connecting to a Computer
27
Connecting to a Desktop Macintosh 
Before beginning, turn off the projector and Macintosh if they are 
on.
1. Connect the projector video cable and monitor cable.   
Note: Macintosh computer configurations vary. See your 
computer manual for the location of the ports needed to connect 
your projector.
a. Connect either end of the projector video cable to the 
projector’s Computer In port. 
Macintosh
monitor
adapter
projector video cable Computer In port 
Computer Out port
Macintosh
desktop
adapter
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							1    Installation             28
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. Disconnect the monitor cable from the video port on the 
back of the Macintosh. 
d. Connect the small terminal of the Macintosh desktop 
adapter to the other end of the projector video cable and 
connect the projector video cable (with Macintosh desktop 
adapter attached) to the video port.
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							Connecting to a Computer
29
e. If you wish to view or check images on the computer’s 
monitor, attach the large end of the Macintosh monitor 
adapter to the monitor cable and connect the monitor to the 
projector’s Computer Out port.
f. Tighten the screws on all connectors.
2. If you want to use the remote control as a mouse pointer for the 
computer, 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 82 to 
connect the mouse cable. 
Mac mouse cable Mouse/Comport
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							1    Installation             30
a. Disconnect your Macintosh’s mouse cable. Connect the 
small end of the projector’s Mac mouse cable to the Mouse 
port on your Macintosh.
b. Connect the other end of the Mac mouse cable to the 
projector’s Mouse/Com port. 
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.
audio cable Audio In jack
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							Connecting to a Computer
31
Connecting to a PowerBook  
 
Your PowerBook must have a video-out capability in order to 
connect to the projector. 
Before beginning, turn off the projector and computer if they are on.
1. Connect the projector video cable. 
Note: Some new PowerBooks may enable you to connect the 
projector video cable directly to the computer without using a 
video-out cable. In addition, PowerBook configurations vary, 
so the location of your computer’s ports may not match the 
illustration. See your computer manual for additional 
information on connecting a video cable.
a. Connect one end of the projector video cable to the 
projector’s Computer In port.
Video-out cable 
Macintosh 
desktop adapter
Computer In port 
Computer Out port
projector
video cable
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