Epson Powerlite 7550c Users Guide

							Connecting to a Computer
33
3. Locate the Macintosh desktop adapter that came with your 
projector and remove the small cover, as shown below.
4. Set the DIP switches on the desktop adapter to select the 
resolutions you want to use (such as 16-inch mode). See your 
Macintosh documentation for instructions.
5. Connect the small terminal of the Macintosh desktop adapter to 
the other end of the projector’s video cable (now attached to the 
projector’s Computer In port).
Macintosh desktop 
adapterprojector video cable 
						

							1    Setting Up the Projector             34
6. Disconnect the monitor cable from the video port on the back of 
your Macintosh.
7. Connect the projector’s video cable (with the desktop adapter 
attached) to the video port on the back of your Macintosh.
8. If you want to view images on your computer’s monitor, locate 
the Macintosh monitor adapter that came with your projector.
9. Attach the large end of the adapter to your computer’s monitor 
cable, and attach the small end of the Macintosh monitor 
adapter to the projector’s Computer Out port.
10. Tighten the screws on all the connectors. 
						

							Connecting to a Computer
35
Connecting the projector’s audio cable
1. If you will be using audio, connect one end of the audio cable 
that came with the projector to the projector’s Audio In jack.
2. Connect the other end of the audio cable to the audio out port on 
your computer.
Audio In jack
audio cable 
						

							1    Setting Up the Projector             36
Connecting the projector’s mouse cable
Connect the Macintosh mouse cable that came with your projector if 
you want to use the projector’s remote control as a mouse pointer 
for your Macintosh.
Note: If you’ll be using the optional ELP Link III software, you need 
to connect the Macintosh mouse cable included in the ELP Link III 
kit instead. See Chapter 4 for instructions. 
1. Disconnect your Macintosh’s mouse cable.
2. Connect the small end of the mouse cable that came with your 
projector to the mouse port on your Macintosh.
3. Connect the other end of the projector’s mouse cable to the 
Mouse/Com port on the projector.
 mouse cable Mouse/Com 
port 
						

							Connecting to a Computer
37
Connecting to a PowerBook  
 
This section describes how to connect the projector to your 
Macintosh PowerBook with the projector’s video, audio, and mouse 
cables. (You must connect the video cable; the audio and mouse 
cables are optional.)
Note: When you’ve finished connecting the cables, you may need to 
choose Mirroring in the Display Control Panel to display the image 
on the PowerBook 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.) 
						

							1    Setting Up the Projector             38
Connecting the projector’s video cable 
Note: Some new PowerBooks may let you 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.
1. Turn off the projector and your PowerBook, if they’re on.
2. Connect either end of the projector’s video cable to the 
projector’s Computer In port.
Macintosh 
projector video cable Computer Out portComputer In port
Video-out cable
desktop adapter 
						

							Connecting to a Computer
39
3. Locate the Macintosh desktop adapter that came with your 
projector and remove the small cover, as shown below.
4. Set the DIP switches on the desktop adapter to select the 
resolutions you want to use. See your Macintosh documentation 
for instructions.
5. Connect the small terminal of the Macintosh desktop adapter to 
the other end of the video cable that came with your projector.
Macintosh desktop 
adapterprojector video cable 
						

							1    Setting Up the Projector             40
6. If your PowerBook requires a video-out cable, connect the 
smaller end to the video-out connector on the back of the 
PowerBook. Then connect the other end to the projector’s video 
cable (with the Macintosh desktop adapter attached).
7. Tighten the screws on all the connectors. 
						

							Connecting to a Computer
41
Connecting the projector’s audio cable
1. If you want to use audio, connect one end of the audio that came 
with the projector to the projector’s Audio In jack.
2. Connect the other end of the audio cable to the audio out port on 
your computer.
Audio In jack
audio cable 
						

							1    Setting Up the Projector             42
Connecting the projector’s mouse cable
Connect the Macintosh mouse cable that came with your projector if 
you want to use the projector’s remote control as a mouse pointer 
for your Macintosh.
Note: If you’ll be using the optional ELP Link III software, you need 
to connect the Macintosh mouse cable included in the ELP Link III 
kit instead. See Chapter 4 for instructions.
1. Connect the small end of the projector’s Mac mouse cable to the 
mouse port on your PowerBook.
2. Connect the cable’s other end to the projector’s Mouse/Com 
port.
Mouse/Com port
Mac mouse cable