Epson Powerlite 7250 Users Guide

Connecting to a Computer
43
Connecting to a PowerBook 
Your PowerBook must have video-out capability in order to connect to 
the projector. 
To connect the projector to your PowerBook, you need to:
❐Connect the projector video cable
❐Connect the mouse and/or serial cable (if you want to use the 
remote control as a mouse or use the ELP Link IV software)
❐Connect the audio cable (if you’ll be projecting with audio)
Follow the steps in each section for the cables you need to connect. 
Before beginning,...

1    Setting Up the Projector
 44
Connecting the Video Cable
First connect the projector video cable. Refer to this illustration as you 
follow the steps below. 
Note: Some new PowerBooks may allow you to connect the video cable 
directly to the computer without using a video-out cable. See your 
PowerBook manual for additional information on connecting a video 
cable.
video-out cable
projector video cableMacintosh desktop 
adapter Computer 1 
port 

Connecting to a Computer
45
1. Connect one end of the projector video cable to the projector’s 
Computer 1 port. (Use the Computer 2 port if you are 
connecting a second computer.)
2. Remove the small cover on the Macintosh desktop adapter and set 
its DIP switches in accordance with the resolution you want to use 
(such as 16-inch mode). See your Macintosh documentation for 
instructions. 

1    Setting Up the Projector
 46
3. Connect the small terminal of the Macintosh desktop adapter to 
the other end of the video cable.
4. Connect the projector video cable (with the Macintosh desktop 
adapter attached) to the video-out port on the PowerBook.  

Connecting to a Computer
47
If a video-out cable was provided with your PowerBook, connect 
the smaller end of the video-out cable to the video-out port on the 
back of the PowerBook. Connect the other end to the Macintosh 
desktop adapter on the end of the projector video cable.
video-out cable 

1    Setting Up the Projector
 48
Connecting the Mouse and Serial Cables
If you want to use the remote control as a mouse or use the ELP 
Link IV software, you need to connect the main cable. It provides 
connectors for:
❐The Mac mouse or USB cable (to use the remote control as a 
mouse)
❐The Mac serial cable (to use the ELP Link IV software)
Refer to this illustration while following the steps below. 
Mac mouse or 
Mouse/Com 1 port
main cableMac serial 
cable
USB cable 

Connecting to a Computer
49
1. Connect the round end of the main cable to the projector’s 
Mouse/Com 1 port. (Use the Mouse/Com 2 port if you are 
connecting a second computer, and make sure the Computer 
2/BNC video switch on the rear of the projector is set to 
Computer 2.)
2. To use the remote control as a wireless mouse, connect one end of 
the projector’s Mac mouse or USB cable to the MOUSE terminal 
on the large end of the main cable. 

1    Setting Up the Projector
 50
3. Connect the other end of the Mac mouse or USB cable to the 
mouse or USB port on the back of the PowerBook.
4. To use the ELP Link IV software or program new effects for the 
Effects buttons on the remote control, connect one end of the Mac 
serial cable to the MAC SERIAL terminal on the large end of the 
main cable. 
5. Connect the other end of the serial cable to the  printer/ 
modem port on the back of your PowerBook. 

Connecting to a Computer
51
Connecting the Audio Cable
1. If you will be using audio, connect one end of the audio cable to 
the Audio 1 jack on the projector. (Use the Audio 2 jack if you 
are connecting a second computer.) 
2. Connect the other end of the audio cable to the audio-out port on 
your PowerBook. 
Note: After you turn on the projector and computer, you’ll need to choose 
Mirroring in the Display Control Panel if you set up your configuration to 
display on the LCD screen as well as the...

1    Setting Up the Projector
 52
Connecting to a High-End Workstation
The PowerLite 5350, 7250, and 7350 are capable of remapping input 
resolutions up to 1280
×1024 pixels. Since 1280×1024 pixels is the 
default resolution for most leading workstations, this capability makes 
these projectors the best portable solution for the display of 
workstation video output.
There is no standard for workstation video output. Those workstations 
that follow the SXGA standard and use the HD15 connector don’t 
need...