Epson Powerlite 7900p Multimedia Projector Users Guide

							Setting Up the Projector31
Connecting the Cable for Remote Mouse 
Control 
If you’ve connected a computer as described in this chapter, you 
can use the projector’s remote control as a wireless mouse. This lets 
you control your computer and click through slideshow-style 
presentations, such as PowerPoint, from up to 30 feet away. 
The wireless mouse function is supported on systems with a USB port 
running Windows XP, 98SE, 2000, or Me, or Macintosh OS 8.6 to 
OS X 10.2 or later.
1. Obtain a commercially available standard USB cable. 
2. Connect the square end of the cable to the projector’s   USB 
port. 
3. Connect the flat end of the cable to any available USB port on 
your notebook or desktop computer.
4. If necessary, configure your computer to work with an external 
USB mouse. See your computer documentation for details.note
You may need your 
Windows installation CD to 
install the correct driver for 
the remote mouse.
The remote mouse function 
may not operate correctly on 
systems that have been 
upgraded from an earlier 
version of Windows.
note
For details on using the 
remote control in place of 
your computer’s mouse, see 
page 62. 
Use to move 
cursor
Left-clickRight-clickUSB cable 
						

							32Setting Up the Projector
Connecting an External Monitor
If you want to monitor your presentation close-up (on a monitor 
placed beside the projector) as well as on the screen, you can connect 
an external monitor. You can use it to check on your presentation or 
switch between picture sources, even if you’ve pressed the 
A/V Mute 
button to turn off projection on the screen. 
To attach an external monitor, connect it to the projector’s 
Monitor 
Out
 port, as shown:
 
Follow these guidelines to view images on the monitor:
■The monitor displays the image from the currently selected 
computer source. Press the 
Preview button if you want to display 
all the active sources at the same time (see page 56).
■You can also view images on the monitor while the projector is in 
Standby mode, if this mode has been enabled (see page 75). 
note
If you want to connect an 
external monitor to the 
Monitor Out port, your 
computer must be connected 
to either the 
Computer or 
BNC ports. The Monitor 
Out port does not support a 
DVI connection.
External monitor 
						

							Setting Up the Projector33
Playing Sound Through the Projector
You can play sound through the projector’s speaker system, or you can 
attach an external speaker system. (Attaching speakers to the projector 
instead of directly to the audio source lets you use the projector’s 
remote control to adjust the sound.)
Connecting Audio Equipment to the Projector
To play sound through the projector, follow these steps:
1. Obtain a commercially available stereo mini-jack or RCA-style 
audio cable. Which cable you use depends on how your 
equipment is connected:
■If you have a computer connected to the Computer or DVI 
port, use a stereo mini-jack cable.
■If you have video equipment connected to the Video or 
S-Video port, or to the BNC ports, use an RCA-style audio 
cable.
2. Connect the audio cable to the jack corresponding to the 
connected video source. 
  
3. Connect the other end of the cable to the audio-output connector 
on your computer or video equipment. 
Use with Computer or DVI 
connection Use with composite 
video connectionUse with S-Video 
connection
Use with BNC connection 
						

							34Setting Up the Projector
Connecting External Speakers
To connect speakers to the projector, follow these steps:
1. Obtain the appropriate cable to connect your speakers. 
Depending on your stereo system, you may be able to use a 
commercially available audio cable with a stereo mini-jack 
connector on one end, and pin jacks on the other end. For some 
speaker systems, you may have to purchase a special cable or use 
an adapter to connect to your speakers.
2. Connect the stereo mini-jack end of the audio cable to the 
Audio 
Out
 port on the projector. 
  
3. Connect the other end(s) of the cable to your speaker system. You 
may need to use an adapter to make the connection. 
The projector’s internal speaker system is disabled while sound is 
output to the external speakers.  
						

							35
1
Projecting
Once you’ve set up the projector, you’re ready to turn it on, adjust 
the image, and give your presentation.
Although you can operate the projector without it, the remote control 
lets you use additional features. See Chapter 3 for instructions on 
using the remote.
Follow the guidelines in this chapter for: 
■Turning the projector on and selecting the image source
■Troubleshooting display problems
■Adjusting the image
■Adjusting the volume
■Projecting images without a screen
■Shutting down the projector 
						

							36Projecting
Turning On Your Equipment
Make sure your projector and other equipment are set up as described 
in Chapter 1. Then follow the instructions below to start the projector 
and display an image. 
If you turn on any connected computer or video equipment before 
starting the projector, this lets the projector automatically detect and 
display the image source. If you turn on the projector first, or have 
multiple pieces of connected equipment, you may have to select the 
image source manually (see page 38).
Turning On the Projector
Follow these steps to turn on the projector:
1. Remove the lens cap. 
2. Plug one end of the power cable into the projector, and the other 
end into a grounded electrical outlet.
3. Wait until the PPower light stops flashing and turns orange. 
note
To shut down the projector, 
see page 49. Shutting down 
the projector correctly 
prevents premature lamp 
failure and possible damage 
from overheating. 
Power light 
						

							Projecting37
4. Press the red PPower button on top of the projector—or press 
the P
Power button on the remote control.
(If this is your first time using the remote control, make sure the 
batteries are installed and the on/off switch on the side of the 
remote is turned on; see page 52.) 
The PPower light flashes green as the projector warms up, and 
an image begins to appear. When the PPower light stops flashing 
and remains green (in about 20 seconds) the projector is ready 
for use. 
5. If you’ve connected a Windows-based computer to the projector, 
you may see a New Hardware Wizard saying your computer has 
found a plug-and-play monitor; if so, click 
Cancel.
Turn on 
remotePower button
warning
Never look into the lens 
when the lamp is on. This 
can damage your eyes, and is 
especially dangerous for 
children.
note
If the Direct Power ON 
feature has been enabled, 
you don’t need to press the 
P 
Power button to turn 
the projector on. Just plug 
the projector into an 
electrical outlet. When the 
P Power light stops flashing 
and stays on, the projector is 
ready to use. 
						

							38Projecting
Selecting the Image Source
Selecting the image source lets you switch between images input from 
different pieces of equipment connected to the projector (such as a 
computer or DVD player). 
If you don’t see the image you want, select it using the 
Source 
buttons either on the projector or the remote control. 
The 
Source buttons work as follows:
■The projector has two Source buttons. Use the Computer/DVI 
button to switch between equipment connected to the 
Computer 
and 
DVI ports. 
Use the 
Video/BNC button to switch between equipment 
connected to the 
Video, S-Video, and BNC ports. 
■The remote control has six Source buttons. Use them to switch 
between equipment connected to the port identified on each 
button. (The PowerLite 7900p does not support EasyMP.
™ )
Note that the 
Computer and BNC ports can be set up to use different 
input signals (for example, Analog RGB or RGB Video)—so if you 
have equipment connected to one of these ports, it’s important to 
make sure the correct signal is selected to match the equipment you’re 
using. You can change the input signal settings using the projector’s 
menu system; see page 74. 
note
To focus and adjust the 
image, see page 42. If a 
projected image fails to 
appear, see page 39 for help.
note
You can also preview all 
sources on one screen to help 
you select the desired source 
(see page 56). 
						

							Projecting39
What To Do If You See a Blank Screen
If you see a blank screen or a blue screen with the No Signal message, 
try the following:
■Make sure the cables are connected correctly, as described in 
Chapter 1.
■Make sure the P Power light is green and not flashing and the 
lens cap is off. 
■If you’ve connected more than one computer and/or video source, 
you may need to press one of the 
Source buttons on the 
projector’s control panel or the remote control to select the 
correct source. (Allow a few seconds for the projector to sync up 
after pressing the button.)
■If you’re using a PC notebook, press the function key on your 
keyboard that lets you display on an external monitor. It may be 
labelled 
CRT/LCD or have an icon such as  . You may have 
to hold down the 
Fn key while pressing it. Allow a few seconds for 
the projector to sync up after changing the setting.
The Projector and Notebook Don’t Display the 
Same Image
If you’re projecting from a notebook, and you can’t see your image on 
the screen and on your computer at the same time, follow these 
guidelines.
If you’re using a PC notebook:
■On most systems, there’s a function key that lets you toggle 
between the LCD screen and the projector, or display on both at 
the same time. It may be labelled 
CRT/LCD or with an icon such 
as  . You may have to hold down the 
Fn key while pressing 
it. Allow a few seconds for the projector to sync up after changing 
the setting. 
■If the function key doesn’t permit you to display simultaneously 
on both screens, you should check your monitor settings to make 
sure both the LCD screen and the external monitor port are 
enabled. 
No Signal 
						

							40ProjectingFrom the Control Panel, open the 
Display utility. In the Display 
Properties dialog box, click the 
Settings tab, then click 
Advanced. The method for adjusting the settings varies by 
brand; you may need to click a 
Monitor tab, then make sure the 
external Monitor port is set as your primary display and/or 
enabled. See your computer’s documentation or online help for 
details. 
If you’re using Macintosh OS X:
You may need to set up your system to display on the projector screen 
as well as the LCD screen. Follow these steps:
1. From the Apple menu, select 
System Preferences, then select 
Displays.
2. Make sure the 
VGA Display dialog box is selected.
3. Click the 
Arrange tab.
4. Make sure the 
Mirror Displays checkbox is selected.
Select the 
VGA Display 
dialog box
Make sure 
Mirror Displays 
is checked