Epson Projector Emp 7850 User Manual

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Part Names and FunctionsEMP-7850 User’s Guide
Input/Output Ports
•[USB TypeB] port   p.24, p.134When the projector is connected to a computer 
with a computer cable, use this port to connect a 
USB cable to the computer to use the wireless 
mouse function.
•[Video] port   p.27Inputs composite video
 signals 
from a video source.
•[Audio] ports 
(for [Video] port)   p.31Input audio signals from the source 
that is connected to the [Video] port.
•[Audio Out] port   p.32Outputs the audio signals from the 
selected video source to external speakers.•[Remote] port 
 p.129Connect the optional remote 
control cable set to input signals 
from the remote control.•[Monitor Out] port   p.26Outputs analogue-RGB signals from a 
computer connected to the projector by a 
computer cable, to an external monitor. It is 
not compatible with digital-RGB signals 
from computers, video images and EasyMP 
images.
•[Computer] port 
 p.19, p.23, p.29Inputs analogue-RGB signals from a 
computer and RGB-video signals from 
video equipment.•[DVI] port   p.22, p.23Inputs digital RGB computer video signals.•[Audio] port (for [Computer], 
[DVI] port)   p.31Inputs audio signals from the equipment 
connected to the [Computer] port or the 
[DVI] port.•[BNC] ports   p.22, p.23, p.28Inputs analogue-RGB signals from a 
computer and RGB-video signals and 
component video
 signals from video 
equipment.
•[Audio] ports (for [BNC] port) 
 p.31Input audio signals from the source that is 
connected to the [BNC] ports.
•[Control (RS-232C)] port   p.134Connects 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.28Inputs S-Video
 signals from a video 
source.
•[Audio] ports (for [S-Video] port) 
 p.31Input audio signals from the source that is 
connected to the [S-Video] port.
•[USB TypeA] port   p.33Connects a digital camera to the projector 
when projecting digital camera image 
files with EasyMP.
•Card Slot   p.16Insert a wireless LAN card, wired LAN 
card, or memory card into the slot when 
using EasyMP.• Access Lamp 
 EasyMP Setup Guide, 
 EasyMP Operation GuideThe access status of a memory card inserted 
in the PC card slot is indicated by coloured 
lights that may be on or off.•Eject button   p.16Press this button to eject a PC card when it 
has been inserted into the card slot. 
						

							11 EMP-7850 User’s Guide
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. 
						

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Before Using the Remote ControlEMP-7850 User’s Guide
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 Control12Remote 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. 
						

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Before Using the Remote ControlEMP-7850 User’s Guide
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.)
Operat
ing ang
le (ver t
ica
l)
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   p.129 
						

							14 EMP-7850 User’s Guide
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.129
CAUTION
Before setting up the projector, be sure to first read the separate 
Safety Instructions/World-Wide Warranty Terms.
 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.87 
						

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InstallationEMP-7850 User’s Guide
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 standard 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)
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 standard 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.
 When keystone correction is carried out, the projected images will 
become smaller. Use the zoom function to adjust the size of the 
images if necessary.   p.42 
						

							16 EMP-7850 User’s Guide
Inserting and Removing CardsInserting and removing PC cards will be explained using the included wireless 
LAN card provided as an example. When using other cards, or inserting or 
removing a card in a PC card slot on a computer, refer to the documentation 
included with the card.Installation
PROCEDURE
Hold the wireless LAN card with the face outward and insert 
it into the projector card slot. Insert firmly into the slot until it is secure. Once the wireless LAN card has 
been fully inserted in the card slot, the rear edge of the card will protrude from 
the slot.
TIP
The following PC cards can be inserted in the card slot on this 
projector. 
 Wireless LAN card (only compatible with the included accessory)
 Memory card
 Wired LAN card 
For details on compatible wired LAN cards   Compatible PC 
Cards in the EasyMP Setup Guide
CAUTION
 Insert the PC card facing the right way. Installing the device back to 
front or upside down may cause failure or damage.
 Always remove the card before transporting the projector. 
Rear 
						

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Inserting and Removing CardsEMP-7850 User’s Guide
Removal
PROCEDURE
Press the eject button above the card slot. 
The eject button will pop out. 
Press the eject button again. 
Enough of the wireless LAN card will be ejected so that you 
can grasp the edge of the card and pull it straight out of the slot.
CAUTION
 Do not remove a PC card when the access lamp is lit green, when 
connected to a network or when projecting a scenario. Improperly 
removing a PC card may result in damage to the card or data 
destruction on a memory card. 
 The PC card gets hot during and after projector use. Please handle 
the card carefully to avoid personal injury or burns. 
 When you wish to remove a memory card whilst using CardPlayer, 
be sure to close CardPlayer before removal. CardPlayer may 
malfunction if a memory card is removed without closing 
CardPlayer first.   Closing CardPlayer in the  EasyMP 
Operation Guide
1
Eject button Access lamp
2
CAUTION
Be sure to press the eject button back in to prevent it from being 
broken or damaged. 
						

							18 EMP-7850 User’s Guide
Connecting to a ComputerEligible Computers
The method for connecting the projector to a computer using a cable is 
explained here. Refer to the EasyMP Setup Guide when connecting to a 
computer via a network.
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.  p.136
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 p.129 
						

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Connecting to a ComputerEMP-7850 User’s Guide
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
Computer cable 
(accessory) To monitor port
To [Computer] port (blue)
TIP
  After projection starts, change the Computer Input setting in the 
Setting menu to Analog-RGB.   p.84
 If more than one external component is connected to the projector, 
press the [Comp] button on the remote control after projection starts, 
or repeatedly press the [Computer/DVI] button on the projectors 
control panel until Computer (Analog-RGB) is displayed on the 
projected image to select the signal to be projected.    p.37