Epson Projector Emp 7900 User Manual

							10
Part Names and Functions
Remote Control
If you position the   over the button icon or button name, a description of that button will appear.
•
•• •Remote control light-emitting area   p.14•
•• •Indicator•
•• •[Page] buttons   p.20•
•• •[E-Zoom] buttons   p.59
•
•• •[Power] button   p.31, p.35•
•• •[R/C] switch   p.13•
•• •[ ] button   p.21, p.91, p.108
•
•• •[Enter( )] button   p.21, p.91, p.108•
•• •[Menu] button   p.91
•
•• •[Effect] button   p.62
•
•• •[ ] (illumination) button•
•• •[Volume] buttons   p.52
•
•• •[ESC( )] button   p.21, p.92, p.108•
•• •[Help] button   p.108•
•• •Numeric buttons   p.70, p.96•
•• •[ID] button   p.70
•
•• •[Num] button   p.55, p.96
•
•• •[Remote] port   p.14, p.134
•
•• •[Preview] button   p.33•
•• •[Preset] button   p.64
•
•• •[Auto] button   p.48
•
•• •[Wall Shot] button   p.46
•
•• •[Source] buttons   p.32
•
•• •[PinP] button   p.60
•
•• •[A/V Mute] button   p.58•
•• •[Resize] button   p.66•
•• •[Freeze] button   p.59
•
•• •[Color Mode] button   p.51 
						

							11
Part Names and Functions
Input/Output Ports
•
•• •[USB] port   p.20, p.140Connects the projector to a computer via the USB 
cable when using the wireless mouse function.
•
•• •[Video] port   p.23Inputs composite video
g signals from a 
video source.
•
•• •[Audio] ports (for [Video] port) 
 p.26Input audio signals from the source that is 
connected to the [Video] port.•
•• •[Audio Out] port   p.28Outputs the audio signals from the 
selected video source to external speakers.•
•• •[Remote] port   p.14, p.134Connect the optional remote control cable 
set to input signals from the remote control.•
•• •[Monitor Out] port   p.22Outputs currently-projected analogue-RGB 
signals from a computer to an external 
monitor. It is not compatible with digital-
RGB signals from computers and signals 
from video equipment.
•
•• •[Computer] port    p.18, p.25Input analogue RGB video signals from a 
computer and RGB video signals and 
component video
g signals from other 
video sources.
•
•• •[DVI] port   p.19Inputs digital RGB computer video signals.•
•• •[Audio] port (for [Computer], 
[DVI] port)   p.26Inputs audio signals from the equipment 
connected to the [Computer] port or the 
[DVI] port.•
•• •[BNC] portsInputs analogue-RGB signals from a 
computer and RGB-video signals and 
component video
g signals from video 
equipment.
•
•• •[Audio] ports (for [BNC] port) 
 p.26Input audio signals from the source that is 
connected to the [BNC] ports.
•
•• •[Control (RS-232C)] port   p.140Connects the projector to a computer using 
an RS-232C cable. This port is for control 
use and should not be used by the customer.
•
•• •[S-Video] port   p.24Inputs S-Video
g signals from a video source.
•
•• •[Audio] ports (for [S-Video] port) 
 p.26Input audio signals from the source that is 
connected to the [S-Video] port.
•
•• •Network port   p.95Use to connect the projector to a network. 
						

							12
Before Using the Remote ControlInserting the Batteries
The batteries are not already inserted into the remote control at the time the 
projector is purchased. You will need to insert the batteries that are 
provided with the projector before the remote control can be used.PROCEDURE
Remove the battery cover.
While pushing down on the rib of the battery cover, slide the 
battery cover in the direction of the arrow. 
Insert the batteries.
Check the positions of the (+) and (–) marks inside the battery 
holder to ensure that the batteries are inserted the correct way.Replace the battery cover.
Slide the battery cover in until the tab clicks into place.
CAUTION
Be sure to read the Safety Instructions/World-Wide Warranty Terms 
before handling the batteries.1
Rib
23
TIP
If delays in the responsiveness of the remote control occur or if it does 
not operate after it has been used for some time, it probably means 
that the batteries are becoming flat. If this happens, replace the 
batteries with two new AA alkali batteries. 
						

							13
Before Using the Remote Control
Using the Remote Control and Remote Operating Range
The remote control is used in the following way.PROCEDURE
Set the [R/C] switch of the remote control to ON.Point the remote control light-emitting area towards 
one of the remote control light-receiving areas on the 
projector and operate the remote control buttons.
Using the Remote Control12
Remote control 
light-receiving 
area (front)Remote control 
light-receiving 
area (rear)
Remote control 
light-emitting area
TIP
• Do not allow sunlight or light from fluorescent lamps to shine 
directly onto the projectors remote control light-receiving areas, 
otherwise it may interfere with the reception of signals from the 
remote control.
 When not using the remote control, set the [R/C] switch on the 
remote control to OFF. If you leave the [R/C] switch at ON, it 
will consume battery power.
 If a button on the remote control is pressed down for more than 1 
minute while the [R/C] switch is at ON, the signal for that button 
operation will stop being transmitted (the remote control will change 
to sleep mode). The purpose of this is to prevent the batteries from 
being consumed due to something being placed on top of the remote 
control. 
When the button is released, normal remote control operation will 
resume. 
						

							14
Before Using the Remote Control
Use the remote control within the ranges indicated below. If the distance or 
angle between the remote control and the remote control light-receiving 
area is outside the normal operating range, the remote control may not 
work.Remote Operating Range
Operating distance
Operating angle
Approx. 10 m (30 ft.)
Approx. ±30° horizontally
Approx. ±15° vertically
Remote control 
light-receiving areas
Operating angle (horizontal)
Approx. 30°Approx. 30°
Remote control 
light-emitting areaApprox. 30°
Approx. 30°
Operating 
distance approx. 
10 m (30 ft.)
Operating angle (ver tical)
Operating distance 
approx. 10 m (30 ft.)
Approx. 15°
Approx. 15°Approx. 15°
Approx. 15° Operating distance 
approx. 10 m (30 ft.)
When suspended from the ceiling
Operating distance 
approx. 10 m (30 ft.)Operating distance 
approx. 10 m (30 ft.)Approx. 15°
Approx. 15°
TIP
If you would like to ensure that remote control operations work 
properly from a distance, use the optional remote control cable set to 
connect the [Remote] port of the remote control to the projectors 
[Remote] port.
See Appendices: Optional Accessories and Consumables   p.134 
						

							15
InstallationSetting Up the Projector
The projector supports the following four different projection methods, 
allowing you to choose the best method for displaying your images.
* A special method of installation is required for suspending the projector 
from the ceiling. Please contact your supplier if you would like to use 
this installation method. The optional ceiling mount is required when 
installing the projector on the ceiling. 
  p.135
CAUTION
 Before setting up the projector, be sure to first read the separate 
Safety Instructions/World-Wide Warranty Terms.
 The projector has feet on its side for storage. Do not set up the 
projector vertically with the feet for projection.   p.8
 Front projection
 Rear projection using a translucent screen
 Front/ceiling projection
 Rear/ceiling projection using a translucent screen
TIP
When using rear/ceiling projection using a translucent screen, set the 
Ceiling and Rear Proj. commands in the Advanced1 menu to 
match the installation method.   p.85 
						

							16
Installation
Screen Size and Projection Distance
The distance from the lens to the screen determines the actual image size. 
The recommended distance and projection distance values given below are 
for when the projector is fitted with a Wide Zoom Lens. If the projector has 
been fitted with an optional lens, refer to the documentation provided with 
the lens.
While referring to the following table, position the projector so that the 
images are projected onto the screen at the optimum size. The values 
should be used as a guide for setting up the projector. The actual values 
will vary depending on projection conditions and the zoom setting.
* When installing against a wall, leave a space of 20 cm (7.9 in.) or more between the projector and the wall.
Recommended distance
77–1113 cm (2.5–36.5 ft.)
4:3 screen size (cm (in.))
Projection distance (cm (ft.))
30 (61 ×  46  (24.0 × 18.1))
77 −107 (2.5–3.5)
40 (81 ×  61 (31.9 × 24.0))
105 −144 (3.5–4.7)
50 (100 × 76 (39.4 × 30.0))
133 −181 (4.4–6.0)
60 (120 ×  90 (47.2 × 35.4))
161 −219 (5.3–7.2)
80 (160 ×  120 (63.0 × 47.2))
216 −293 (7.1–9.6)
100 (200 ×  150 (78.7 × 59.1))
272 −368 (8.9–12.1)
200 (410 ×  300 (161.4 × 118.1))
550 −740 (18.0–24.3)
300 (610 ×  460 (240.2 × 181.1))
827 −1113 (27.1–36.5)
Screen
90º Centre of lens
*
Projection distance
TIP
The Wide Zoom Lens allows a zoom ratio of up to about 1.35. The 
image size at the maximum zoom setting is about 1.35 times bigger 
than the image size at the minimum zoom setting. 
						

							17
Connecting to a ComputerEligible Computers
The projector cannot be connected to some types of computer, or 
projection of images may not be possible even if actual connection is 
possible. Make sure that the computer you intend to use satisfies the 
conditions given below.
 Condition 1: The computer must have an image signal output port.
Check that the computer has a port such as an RGB port, monitor port 
or CRT port which can output image signals.
If the computer has a built-in monitor, or if using a laptop computer, it 
may not be possible to connect the computer to the projector, or 
alternatively you may need to purchase a separate external output port. 
Refer to the documentation for your computer under a heading such as 
Connecting an external monitor or similar for further details. Condition 2: The display resolution and frequency of the computer 
must be listed in the List of Supported Monitor Displays. 
See Appendices: List of Supported Monitor Displays   p.142
Some computers allow you to change the output resolution, so if 
necessary, change the resolution to one that matches a setting in the List 
of Supported Monitor Displays. Refer to the documentation provided 
with the computer.
CAUTION
When connecting the projector to a computer, be sure to check the 
following.
 Turn the power off for both the projector and the computer before 
connecting them. If the power for either device is on at the time of 
connection, damage may result.
 Check the shapes of the cable connectors and the device ports before 
making the connections. If you try to force a connector to fit a device 
port with a different shape or number of terminals, a malfunction or 
damage to the connector or port may result.
 Do not bind the power cable and the connecting cable together. If 
the power cable and the connecting cable are bound together, image 
interference or errors in operation may result.
TIP
 You may need to purchase a commercially-available adapter 
depending on the shape of the computers port. Refer to the 
documentation provided with the computer for further details.
  If the computer and projector are too far away from each other for 
the accessory computer cable to reach, use the optional VGA-HD15 
PC cable. See Appendices: Optional Accessories and 
Consumables  p.134 
						

							18
Connecting to a Computer
Projecting Images from the Computer
The shape and specifications of the computers monitor port will determine 
what type of cable should be used. Check the following to see which type 
of port your computer has.
Use the accessory computer cable to make the connections.If the Monitor Port is a Mini D-Sub 15-pin Port (Example)
Computer cable 
(accessory) To monitor port
To [Computer] port (blue)
TIP
 Image sources are auto-detected according to the input signals. 
Depending on an output signal of a computer, the image may be 
projected in unnatural colours. In such case, set the Computer 
Input in the configuration menu to RGB.    p.81
 When connecting more than one device to the projector, use the 
[Comp] button on the remote control, or the [Computer/DVI] button 
on the projectors control panel to switch between devices after 
starting projection.   p.32 
						

							19
Connecting to a Computer
Use the optional DVI-D
g/DVI-D digital video cable or DVI-D/DFP digital 
video cable to make the connection.
If the Monitor Port is a Digital RGB Port
DVI-D/DVI-D digital video cable or 
DVI-D/DFP digital video cable 
(optional) To monitor port
To [DVI] port
TIP
 Use whichever optional DVI-D/DVI-D digital video cable or DVI-D/
DFP digital video cable matches the monitor port of the computer. 
See Appendices: Optional Accessories and Consumables   p.134
 When connecting more than one device to the projector, use the 
[DVI] button on the remote control, or the [Computer/DVI] button 
on the projectors control panel to switch between devices after 
starting projection.    p.32