P R O D U C T I N F O R M A T I O N G U I D E
UPDATE
6/17/03
EPSON
This package provides a new multimedia projector product section to be added to the
EPSON
EPSON PowerLite
®
Product Information Guide. The table of contents of this section is listed below.
®
7850p
TABLE OF CONTENTS
Projector Specifications ................................................................................EPSON PowerLite 7850p Projector - 1
Positioning the Projector ..............................................................................EPSON PowerLite 7850p Projector - 3
Connecting the Projector.............................................................................. EPSON PowerLite 7850p Projector - 4
Starting Up the Projector.............................................................................. EPSON PowerLite 7850p Projector - 5
Adjusting the Image .....................................................................................EPSON PowerLite 7850p Projector - 7
Shutting Down the Projector........................................................................ EPSON PowerLite 7850p Projector - 9
Using the Remote Control ...........................................................................EPSON PowerLite 7850p Projector - 9
Using the Control Panel............................................................................... EPSON PowerLite 7850p Projector - 10
Controlling Multiple Projectors....................................................................EPSON PowerLite 7850p Projector - 10
Presenting Over a Wireless Network ............................................................ EPSON PowerLite 7850p Projector - 11
Managing Projectors from a Remote Computer ...........................................EPSON PowerLite 7850p Projector - 17
Projector Status Lights..................................................................................EPSON PowerLite 7850p Projector - 21
Cleaning the Lens......................................................................................... EPSON PowerLite 7850p Projector - 21
Cleaning the Projector.................................................................................. EPSON PowerLite 7850p Projector - 22
Cleaning the Air Filters and Vents................................................................EPSON PowerLite 7850p Projector - 22
Replacing the Lamp and Air Filters .............................................................. EPSON PowerLite 7850p Projector - 22
Transporting the Projector ........................................................................... EPSON PowerLite 7850p Projector - 24
Optional Accessories.....................................................................................EPSON PowerLite 7850p Projector - 24
Related Documentation................................................................................ EPSON PowerLite 7850p Projector - 24
6/03
Focus ring
Air
exhaust
vent
Remote
control
receiver
Foot
release
lever
Adjustable
foot
Lens cover
Type A
USB port
Monitor-out port
Eject button
Card indicator light
Zoom ring
Type B
USB port
Audio-out
port
Type II
PCMCIA Card
slot
Temperature
light
RS-232
serial
port
Computer1
port
Remote port (for
optional hard-wired RC
Lamp light
DVI
port
Power light
Control
panel
Handle
Remote
control
receiver
AC power inlet
Speaker
Audio-in port (for
Computer and DVI)
BNC ports
S-video port
and related
audio ports
Video port and
related audio ports
Security lock
Projector Specifications
General
Type of display Poly-silicon Thin Film Transistor
(TFT), active matrix
Size of LCD panels Diagonal: 1.0 inch (25.4 mm)
Lens F=1.7 to 2.3, f=28 to 37 mm
Resolution 1024
Color reproduction 24 bit, 16.8 million colors
× 768 pixels (XGA, native format)
Air Filter
Rear
adjustable
foot
EPSON PowerLite 7850p Projector
Brightness 3500 lumens (ANSI) in low brightness
mode
2500 lumens (ANSI) in high brightness
mode
Contrast ratio 700:1
Image size 30 to 300 inches
Projection distance 2.6 to 36.1 feet (0.8 to 11 meters)
Projection methods Front, rear, upside-down front
(ceiling mount), and upside-down rear
Internal sound
system 5 W monaural
Optical aspect ratio 4:3 (horizontal:vertical)
Zoom ratio 1:1.35
Noise level 36 dB
Keystone correction Automatic (vertical only); manual
adjustment capability ±40° (vertical),
±20° (horizontal)
Projection Lamp
Type UHE (Ultra High Efficiency)
Power consumption 250 W
Lamp life About 2000 hours (when
Control
set to high) and aabout 3000
hours (when
Brightness Control set
to low)
Part number V13H010L22
Remote Control
Range 33 feet (10 meters)
Batteries (2) Alkaline AA
Mouse Compatibility
Supports USB
Dimensions
Height 4.6 inches (117 mm), feet retracted
Width 16.5 inches (419 mm)
Depth 12.8 inches (325 mm)
Weight 12.8 lb (5.8 kg)
Electrical
Rated frequency 50 to 60 Hz AC
Power supply 100 to 120 VAC, 3.6 A
200 to 240 VAC, 1.6 A
Power
consumption Operating: 350 W
Standby: 1.5 W with Network OFF
47 W with Network ON
Brightness
6/03 EPSON PowerLite 7850p Projector - 1
EPSON PowerLite 7850p Projector
Environmental
Temperature Operating: 41 to 95 °F (5 to 35 °C)
Storage: 14 to 140 °F (–10 to 60 °C)
Humidity Operating: 20 to 80% RH,
non-condensing
Storage: 10 to 90% RH,
non-condensing
Safety
United States FCC 47CFR Part15B Class B (DoC)
UL1950 Rev. 3
Canada ICES-003 Class B
CSA C22.2 No. 950-95 (cUL)
CE Marking Directive 73/23/EEC, 89/336/EEC
EN 55022, EN 55024
Compatible Video Formats
You can use any of the following video sources: VCR, DVD
player, camcorder, digital camera, gaming console, or laser
disc player. The projector supports composite video, S-video,
component video, and RGB video, and it automatically senses
the video format (HDTV, NTSC, PAL, or SECAM).
The projector supports these international video standards:
Mode Refresh rate (Hz)
NTSC
NTSC 4:3
PAL
M-PAL
N-PAL
PAL—60
SECAM
HDTV (720p)
HDTV (1080i)
SDTV (480i)
SDTV (480p)
SDTV (625i)
SDTV (625p)
60
60
50
60
50
60
50
60
60
60
60
50
50
Compatible Computer Display Formats
You can connect the projector to a wide range of computers,
including PCs and laptops, Apple Macintosh,
Macintosh
PowerBook
systems, and high-end workstations such as the Sun
SPARCstation.
®
series (including G3 and G4 systems),
®
computers, many iMac® and iBook® series
™
®
Power
®
Although images are displayed at the projector’s native
resolution of 1024 × 768 pixels, EPSON’s patented
SizeWise
™
chip supports computer display formats ranging
from VGA through UXGA.
To project images output from a computer, the computer’s
external monitor signal must be set at a refresh rate (vertical
frequency) that’s compatible with the projector; see the
following table for compatible formats. For best results, the
computer’s resolution should be set to match the projector’s
native resolution (1024
Mode Refresh Rate (Hz) Resolution
VGAEGA 70 640 × 350*
VGA—60
VESA—72
VESA—75
VESA—85
SVGA—56
SVGA—60
SVGA—72
SVGA—75
SVGA—85
XGA—60
XGA—70
XGA—75
XGA—85
XGA—100
XGA—120
SXGA1—70
SXGA1—75
SXGA1—85
SXGA1—100
SXGA2—60
SXGA2—75
SXGA2—85
SXGA3—60
SXGA3—75
SXGA3—85
UXGA—60
UXGA—65
UXGA—70
UXGA—75
UXGA—80
UXGA—85
MAC13
MAC16
MAC19
MAC21
* The image is resized using EPSON’s SizeWise Technology.
× 768).
60
72
75
85
56
60
72
75
85
60
70
75
85
100
120
70
75
85
100
60
75
85
60
75
85
60
65
70
75
80
85
67
75
75
75
640 × 480*
640 × 480*
640 × 480*
640 × 480*
800 × 600*
800 × 600*
800 × 600*
800 × 600*
800 × 600*
1024 × 768
1024 × 768
1024 × 768
1024 × 768
1024 × 768
1024 × 768
1152 × 864*
1152 × 864*
1152 × 864*
1152 × 864*
1280 × 960*
1280 × 960*
1280 × 960*
1400 × 1050*
× 1050*
1400
1400 × 1050*
1600 × 1200*
1600 × 1200*
1600 × 1200*
1600
× 1200*
× 1200*
1600
1600 × 1200*
640 × 480*
832 × 624*
1024
× 768
× 870*
1152
2 - EPSON PowerLite 7850p Projector 6/03
EPSON PowerLite 7850p Projector
Positioning the Projector
Follow these guidelines:
❏ Place the projector on a sturdy, level surface, between
2.6 and 36 feet from the screen. Image size generally
increases with distance, but may vary depending on the
position of the zoom ring and other settings.
27 to 36.1 ft
2.6 to 3.5 ft7 to 9.5 ft
❏ Place it within 10 feet of an electrical outlet or extension
cord and 5 feet of your computer or video source.
❏ Allow space for ventilation around and under the projector.
❏ To avoid a keystone shaped image (an image that is wider
on one side), place the projector directly in front of the
center of the screen, facing the screen squarely.
❏ If possible, place the projector level with the bottom of the
screen.
If you place the projector too far below the screen, you may
have to tilt it up by extending the front adjustable foot (see
page 7). This causes the projected image to lose its shape, but
the projector automatically compensates. If the image is still
not square, adjust it manually by pressing the
buttons (see page 7) or using Quick Corner (see page 8).
If you place the projector higher than the bottom of the
screen, the image will be square, but it won’t fill the screen.
Calculating Image Size and Projection Distance
Use the formulas below to find out how large the image will
be when you know the distance from projector to screen, or to
find out how far from the screen to place the projector if you
want an image of a certain size. Since you can change the
image size by rotating the zoom ring, formulas are given for
calculating both minimum and maximum sizes.
Note: Formulas given here apply only when the image is not
tilted. If you tilt the image up by extending the projector’s foot or
using electronic keystone correction, your image size may vary.
Distance
from screen
Keystone
Standard Lens
To determine the diagonal size of an image (in inches) when
you know the projection distance:
❏ Maximum diagonal size =
((2.54
×
projection distance) / 100) × 36) + 2.13
❏ Minimum diagonal size =
((2.54
×
projection distance) / 100) × 26.84) + 1.29
To determine the projection distance (in inches) when you
know the diagonal size of the screen image:
❏ Maximum projection distance =
((diagonal size – 1.29) / 26.84)
× 100 / 2.54
❏ Minimum projection distance =
((diagonal size – 2.13) / 36)
Middle Throw Lens (V12H004M03)
× 100 / 2.54
To determine the diagonal size of an image (in inches) when
you know the projection distance:
❏ Maximum diagonal size =
((2.54
×
projection distance ) / 100) × 27.42) + 1.49
Minimum diagonal size =
((2.54
×
projection distance) / 100) × 20.48) + 1.1
To determine the projection distance (in inches) when you
know the diagonal size of the screen image:
❏ Maximum projection distance =
((diagonal size – 1.1) / 20.48)
× 100 / 2.54
❏ Minimum projection distance =
((diagonal size – 1.49) / 27.42)
Long Throw Zoom Lens (V12H004L05)
× 100 / 2.54
To determine the diagonal size of an image (in inches) when
you know the projection distance:
❏ Maximum diagonal size =
((2.54
×
projection distance) / 100) ×
20.4
) + 1.93
❏ Minimum diagonal size =
((2.54
×
projection distance) / 100) × 15.23) + 1.45
To determine the projection distance (in inches) when you
know the diagonal size of the screen image:
❏ Maximum projection distance =
((diagonal size – 1.45) / 15.23)
× 100 / 2.54
❏ Minimum projection distance =
((diagonal size – 1.93) / 20.54)
× 100 / 2.54
6/03 EPSON PowerLite 7850p Projector - 3
EPSON PowerLite 7850p Projector
Connecting the Projector
You can connect the projector to three computer sources or
four video sources—up to a total of four sources. You can
include an independent sound channel for each source. (See
the User’s Guide for complete setup instructions.) Using
EasyMP,
view images on a memory card or digital camera.
Note: The preview feature lets you see all the sources at a glance,
so you can easily switch among them. See page 5.
Types of Connections
The following connections are possible, depending on the
signal your equipment generates and its available output ports.
Computer equipment
®
you can also connect over a wireless network, or
Output signal Required cable
Analog RGB video
DVI
VGA cable
BNC cable
VGA-to-BNC cable
DVI-D dual-link cable (DVI-to-DVI or
DFP-to-DVI, available from EPSON; see
page 24)
Playing Sound Through the Projector
You can play sound through the projector’s speaker system or
you can attach an external speaker system.
To play sound through the projector, use one of the following
cables that came with your projector:
❏ If you have a computer or video equipment connected to
the
Computer or DVI port, use the stereo mini-jack cable.
Connect one end to the correct audio port (see below), and
the other end to the audio-output connector on your
equipment.
❏ If you have a computer or video equipment connected to
the
BNC ports, or to the Video or S-Video port, use the
the RCA-style audio cable. Connect one end to the jack
corresponding to the connected port, and the other end to
the audio-output connector on your equipment.
Use to connect external
speakers
Use with BNC connection
Video equipment
Output signal Required cable
Composite video RCA video cable
S-video S-video cable
Component video—
NTSC (YCbCr)
Component video—
HDTV (YPbPr)
RGB video
Note that the projector’s
BNC cable
BNC cable
VGA cable
BNC cable
Computer and BNC ports accept a
variety of input signals. If you’re connecting to one of these
ports, you’ll need to make sure that the correct input signal
setting is selected, or your image won’t display properly.
To change the input signal setting, do the following:
1. After turning on the projector, press the
Menu button. The
menu screen appears.
2. Select the
3. Change the
Setting menu.
Computer Input or BNC Input setting as
needed to match the signal generated by your computer or
video equipment. (See the User’s Guide for more
information.)
Use with Video
connection
To connect external speakers, use the
Use with S-video
connection
Use with Computer or
DVI connection
Audio Out port on the
back of the projector. 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, or you may have to purchase a
special cable or use an adapter, depending on your stereo
system. See the User’s Guide for more information.
Using the Remote Control as a Wireless Mouse
If you’ve connected a computer to the projector, you can
use the projector’s remote control as a wireless mouse by
connecting the USB cable that came with the projector to
the projector’s
is supported on systems with a USB port running Windows
Type B USB port. The wireless mouse function
®
XP, 98, 2000, or Me, or Macintosh OS 8.6 to OS X 10.2. See
the User’s Guide for more information.
4 - EPSON PowerLite 7850p Projector 6/03
EPSON PowerLite 7850p Projector
Starting Up the Projector
If you turn on your computer or video equipment before the
projector, the projector automatically selects the connected
source. If you turn on the projector first or you have multiple
sources connected, you may have to switch to the desired
source manually (see “Selecting the Image Source” on page 5).
Turning On the Projector
1. Remove the lens cap.
2. Plug in the projector.
3. Wait a few seconds until the projector’s P
flashing and turns orange.
4. Press the red P
Power button on top of the projector or on
the remote control.
Note: If you’re using the remote
control, make sure batteries are
installed and the power switch on
the side of the remote control is
turned on.
The projector’s P
power light flashes green as it warms up,
and an image begins to appear after about 30 seconds.
When the P
power light stops flashing and remains green,
the projector is ready for use.
Wa rn ing : Never look into the lens when the lamp is on. This
can damage your eyes.
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.
power light stops
Power button
❏ The projector’s control panel has two
Use the
switch between EasyMP,
Computer/DVI button to
™
and
Source buttons.
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,
or select
EasyMP to project
wirelessly or from a memory card.
You can preview all sources to help
you select the desired source, as described below.
The
Computer and BNC ports can be set up to use different
input signals, so if you have equipment connected to one of
these ports, be sure to select the correct signal to match the
equipment you’re using. You can change the input signal
settings using the projector’s menu system as described in
“Types of Connections” on page 4.
Previewing Image Sources
Use the preview function to select the image source when you
have connected multiple sources to the projector.
1. Press the
Preview button on the
remote control.
You see the currently selected
source displayed on the screen, as
Preview
shown below. Other sources
(including the currently selected source) appear in smaller
preview windows on the right and bottom of the screen.
.
Currently selected source
Computer (Analog-RGB)
Computer
Selecting the Image Source
If multiple devices are connected to the projector, you can use
the
Source buttons on the projector or the remote control to
switch from one source to another:
DVI
BNC
S-Video
Video
Preview windows
If no equipment is connected to a port, or if there is no
incoming signal, the preview window for that source
appears blank.
Note: Movies are displayed as still images on the preview
screen.
6/03 EPSON PowerLite 7850p Projector - 5
EPSON PowerLite 7850p Projector
2. Press the corresponding
control to switch to the desired source. Or press the
Source button on the remote
ESC
button to exit the preview screen without switching sources.
Note: A red border surrounds the preview window for the
currently selected source. You can use the pointer button
on the remote control to select a different source, and then
press
Enter to display it.
What To Do If You See a Blank Screen
If you see a blank screen or a blue screen with the message
No Signal after turning on your computer or video source,
try the following:
❏ Make sure the cables are connected correctly.
❏ Make sure the power light is green and not flashing and the
lens cover is off.
❏ Try restarting your computer.
❏ Press the correct
Source button on top of the projector or
on the remote control. (Allow a few seconds for the
projector to sync up after pressing the button.)
If you’re using a PC laptop:
❏ Hold down the Fn key and press the function key that lets
you display on an external monitor. It may have an icon
such as or it may be labeled
CRT/LCD. Allow a few
seconds for the projector to sync up after pressing it. Check
your laptop’s manual or online help for details.
On most systems, the or
CRT/LCD key lets you
toggle between the LCD screen and the projector, or
display on both at the same time.
❏ Depending on your computer’s video card, you might need
to use the Display utility in the Windows
®
Control Panel to
make sure that both the LCD screen and external monitor
port are enabled. See your computer’s documentation or
online help for details.
If you’re using a laptop with 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
select
Displays.
2. Make sure the
3. Click the
VGA Display dialog box is selected.
Arrange tab.
System Preferences, then
Select the
VGA Display
dialog box
Make sure
Mirror Displays
is checked
4. Make sure the
If you’re using a laptop with Macintosh® OS 9.x:
Mirror Displays checkbox is selected.
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
Monitors or Monitors and Sound.
2. Click the
Click here
Drag one monitor
icon on top of the
other
Arrange icon.
Control Panels, then click
3. Drag one monitor icon on top of the other.
If the
Arrange option isn’t available, do the following:
1. Click the
Monitor icon if necessary.
Click here
Select a
Simulscan
resolution
6 - EPSON PowerLite 7850p Projector 6/03
2. Select a Simulscan resolution as shown. (Allow a few
seconds for the projector to sync up.)
EPSON PowerLite 7850p Projector
Adjusting the Image
Once you see your image, you may need to make certain
adjustments.
Focusing and Zooming Your Image
Use the focus ring on the projector to sharpen the image.
Use the zoom ring on the projector to reduce or enlarge the
image. Move the tab toward the
toward the
Focus ring Zoom ring
T to make it smaller.
If the image still isn’t large enough, you may need to move the
projector farther away from the screen. You can also use the
E-Zoom buttons on the remote control to zoom in on a
portion of the image.
Adjusting the Height of Your Image
If the image is too low on the screen, you can raise it by
adjusting the front foot:
1. Stand behind the projector. Press the blue foot release lever
up and lift the front of the projector.
W to make it bigger, or
Raising the projector causes the image to distort or
“keystone,” but you can manually correct the shape as
described in the next section.
Adjusting the Image Shape
In most cases, you can maintain a rectangular image by
placing the projector directly in front of the center of the
screen with the base of the lens level with the bottom of the
screen.
Even if the projector is slightly tilted (within a range of 40° up
or down), the projector’s automatic keystone correction
function detects and corrects vertical keystone distortion.
Corrected imageProjector tilted up Projector tilted down
It takes about one second after projection starts for the image
to be corrected. During this time, a vertical keystone
correction gauge appears on the screen.
If your image is still distorted, you can correct it using either
of these methods:
❏ If the image has two parallel
sides but is wider on the top,
bottom, left, or right, you
can correct it using the
Keystone keys on the
Keystone correction
projector’s control panel or
the Keystone menu (see
“Using Keystone
Correction” on page 7).
Keystone correction
❏ If the image has no parallel
sides, you can adjust its
shape using Quick Corner
(see page 8).
™
Quick Corner correction
You cannot use both keystone
correction and Quick Corner at the same time.
2. Once the image is positioned where you want it, release the
lever to lock the foot in position.
3. If necessary, you can finetune the height by turning
the projector’s rear feet.
Projector foot
Using Keystone Correction
To adjust your image when it is wider on one side, do one of
the following:
❏ Look at the shapes of the icons on the
projector’s four
Keystone buttons.
Press the button whose icon is the
opposite shape of your screen image.
Continue pressing the button until
you are satisfied with the shape of the
image.
6/03 EPSON PowerLite 7850p Projector - 7
EPSON PowerLite 7850p Projector
Adjust
[ ] :Move next
[ESC]
:Return (Press 1 second to
reset)
Note: The image will be slightly shorter after adjusting. If it’s
important to maintain the correct aspect ratio, use the menu
system to perform keystone correction, as described below,
then adjust the Height setting as needed.
❏ Press the
Setting menu, and press Enter. From the Setting menu,
select
Enter. Select V-Keystone (for vertical keystone distortion)
or
press
Menu button on the remote control, select the
H/V-Keystone in the Keystone menu and press
H-Keystone (for horizontal keystone distortion) and
Enter. Use the pointer button on the remote
control to adjust the keystone setting as needed.
Using Quick Corner
Use Quick Corner to correct the image shape when it’s
uneven on all sides.
1. Press the
Menu button on the remote control (or on the
projector’s control panel).
2. Select the
3. From the Setting menu, select
4. Select
Setting menu and press Enter.
Keystone and press Enter.
Quick Corner and press Enter.
You see this screen:
5. Press the
Enter button to
select the corner you want to
adjust.
6. Use the pointer button on
the remote control (or the
arrow buttons on the
projector) to adjust the shape.
7. Repeat steps 5 and 6 as needed
[
]:Adjust
/
[ ] :Move next
[ESC]
:Return (Press 1 second to
reset)
to adjust any remaining
corners.
8. When done, press the
ESC button on the remote control to
exit the menu system.
If
Quick Corner remains selected in the Keystone menu, the
Quick Corner screen appears whenever you press the
projector’s
Keystone buttons. You can then follow steps 5
through 8 above to correct the shape of your image, or press
ESC to exit Quick Corner.
Correcting Computer Images
If you’ve connected a
computer and the image
doesn’t look right or fit
properly on the screen, press
the
Auto button on the
remote control (or the
Auto/Enter button on the
Auto
button
projector’s control panel).
This automatically resets the projector’s tracking, sync,
resolution, and position settings.
Note: You must be projecting an image for this button to have
any effect. The
If vertical stripes appear in the projected image and the
button doesn’t correct the problem, hold down the
Auto button works only with computer images.
Auto
Shift
button on the projector’s control panel while pressing either
the
Tracking + or the Tracking – button.
If the image appears fuzzy or flickers and the
doesn’t correct the problem, hold down the
pressing either the
Sync + or Sync – button.
Auto button
Shift button while
Note: Also make sure you have selected the correct Computer or
BNC Input option in the Setting menu for your computer. See the
User’s Guide for more information.
8 - EPSON PowerLite 7850p Projector 6/03
EPSON PowerLite 7850p Projector
Shutting Down the Projector
When you’ve finished using the projector, follow the
recommended procedure below to shut it down. This extends
the life of the lamp and protects the projector from possible
overheating.
Note: When the projector has not received any input signals for 30
minutes, it automatically turns off the projector lamp and enters
sleep mode. This conserves electricity, cools the projector, and
extends the life of the lamp. If you are done using the projector,
unplug the power cord. If you want to start projecting again, press
the P
Power button.
You can turn off sleep mode using the
Setting menu. If
Standby Mode has been set to Network ON
(in the Advanced1 menu), the lamp turns off but the projector
does not go into full sleep mode. It provides enough operation to
allow network access and allow the projector to be monitored or
controlled from a remote computer (see page 17).
Follow these steps to turn off the projector:
1. Turn off any equipment plugged into the projector.
2. To turn off the projector, press the red P
the projector or remote control.
You see a confirmation
message. (If you don’t want
to turn it off, press any
other button.)
3. Press the P
Power button again. The P
orange for about 40 seconds as the projector cools down.
After the projector has cooled, the orange light stays on and
the exhaust fan shuts off.
Caution: To avoid damaging the projector or lamp, never
unplug the power cord when the P power light is green or
flashing orange.
To turn the projector on again, wait until the orange light
stops flashing. Then press the P
4. If you extended the adjustable front foot, press up on the
blue foot release lever to retract it. If you’ve fine-tuned the
height by extending the projector’s rear feet, turn them in
the opposite direction to retract them.
5. Replace the lens cap and unplug the power cord.
6. If you’re using the remote control, turn it off to conserve
battery power.
7. Disconnect any equipment plugged into the projector.
Sleep Mode option in the
Power button on
power light flashes
Power button.
Using the Remote Control
The remote control
lets you access your
projector’s features from
up to 30 feet away, and
from ± 15° above or
below and ± 30° left or
right of the projector’s
infrared receiver.
This table summarizes the remote control functions.
Button Function
E-Zoom Zooms in on a portion of your image.
Page Advances to the next or previous image in a
Power Turns the projector on or off.
P in P Displays a picture-in-picture image.
Color Mode Adjusts the vividness of the image color. You can
A/V Mute Turns off audio and video, displaying the black,
Resize Adjusts how an image fits into the display area.
Freeze Halts action. Press again to resume action.
Effect Activates the pointer tool. To use a different style
Enter Selects a highlighted menu option, or functions as
Esc Displays the previous menu when using the menu
Menu Displays the on-screen menu system.
Help Displays the on-screen help system.
Source
buttons
slideshow.
select from several settings, and save a different
setting for each computer or video source.
blue, or user logo background. Press again to turn
audio and video back on.
Illuminates the buttons on the remote control.
Navigates menus or controls the mouse pointer
when the projector is connected to a computer
with the mouse cable.
pointer, continue pressing the
select the desired style.
the left mouse button when the remote control is
used in place of your computer’s mouse.
system. Functions as the right mouse button when
the remote control is used in place of your
computer’s mouse.
Switch to the equipment connected to the
corresponding port, or to EasyMP if you are
projecting wirelessly or using a memory card.
Turn on
remote control
Effect button to
6/03 EPSON PowerLite 7850p Projector - 9
EPSON PowerLite 7850p Projector
Brightness Control
High
Low
Video
Audio
Setting
User's Logo
Advanced1
About
Reset All
Projector ID
Network
Reset
Execute
: 1
[Menu]: Exit
Effect
Advanced2
COM Port
BNC Sync Termination
OFF
Set
Set
RS-232C
USB
[ / ]: Select
[ ESC ]: Return
[ ]: Set
Auto setup
OFF
ON
Button Function
Preview Previews connected sources (see page 5).
Preset Selects a preset selection of options for displaying
computer images.
Auto Optimizes a computer image.
Wall Shot Adjusts the colors for projecting on a wall,
blackboard, or other surface.
Volume Increases or decreases the sound.
Num Turns on the numeric keypad. (Press this key until
it lights.)
ID Sets the remote control ID (see “Setting the
Remote Control ID” on page 11).
Note: If the projector does not respond to the remote control, make
sure batteries are installed and the switch on its side is turned on.
The projector also might not respond if the batteries are weak,
you’re standing at too great a distance from the projector, ambient
light is too bright, a certain type of fluorescent light is present, a
strong light source (such as direct sunlight) shines into the infrared
receiver, or other equipment emitting infrared energy is present
(such as a radiant room heater).
Using the Control Panel
Button Function
Sync
buttons
Let you manually correct blurriness that may be
present in some computer images. Use the Sync
buttons as arrow keys to navigate the on-screen menu
and help systems.
Shift Press and hold to use the
Tracking and Sync buttons.
A/V Mute Turns off audio and video, displaying the black, blue,
or user logo background. Press again to turn audio
and video back on.
Resize Adjusts how an image fits into the display area.
Keystone
buttons
Square an image that is keystone-shaped, or wider on
one side. (When used while pressing the
Shift button,
these function as Sync and Tracking buttons; see
descriptions above.)
Volume Increases or decreases the sound.
Controlling Multiple Projectors
If you’re using more than one projector for your presentation,
you can use the projector’s ID system to switch between them
using a single remote control. To do this, you need to set a
different ID for each projector. During the presentation, it’s
easy to change the remote control’s ID to match that of the
projector you want to use. When you want to switch, simply
change the remote control’s ID to match that of your second
projector.
This table summarizes the functions of the buttons on top of
the projector.
Button Function
Power Turns the projector on or off.
Help Displays the online help menu.
Computer/
DVI
Switches the source signal among EasyMP and
equipment connected to the Computer or DVI ports.
Video/BNC Switches the source signal among equipment
connected to the
Video, S-Video, or BNC ports.
Menu Displays the on-screen menu system.
ESC Pressing ESC while viewing a menu displays the
previous menu.
Auto/Enter Use as
Enter button to select an option when the
menu or help system is active. When computer images
are displayed, press to auto-adjust the image.
Tracking
buttons
Let you manually eliminate vertical banding that may
be present in some computer images. Use the
Tracking buttons as arrow keys to navigate the on-
screen menu and help systems.
10 - EPSON PowerLite 7850p Projector 6/03
Setting the Projector ID
The projector’s default ID is 1. If you need to change it,
follow these steps:
1. Access the projector’s Advanced2 menu, highlight
Projector ID and press Enter.
Video
Audio
Effect
Setting
User's Logo
Advanced1
Advanced2
About
Reset All
[ ESC ]: Return
Brightness Control
Projector ID
Network
COM Port
Auto setup
BNC Sync Termination
Reset
[ / ]: Select
[ ]: Set
:
: 1
:
:
:
High
RS-232C
ON
:
Low
Set
Set
OFF
ONONOFF
Execute
USB
[Menu]: Exit
2. Press the right or left side of the pointer button to
increase or decrease the ID value.
3. Press
4. When done, press
Enter to set the value.
ESC to exit the menu system.
Setting the Remote Control ID
The remote control’s default ID is zero, which allows it to
control any projector (although not switch between
projectors). If you want to switch between projectors, follow
these steps to change the remote control’s ID to match that of
the projector:
1. Press the
ID button on the remote
control. You see it light up.
2. Press one of the numbered
buttons on the remote
control to select the desired
ID (0 through 9). Select zero
to control all projectors, or
Zero
select a number to match the
ID of the projector(s) you
want to operate.
The
ID button’s light shuts off and the new ID is registered.
If you would like to check the remote control’s current ID,
press the
ID button twice in succession. Count the number of
flashes; this number corresponds to the remote control’s ID. If
it doesn’t flash, the ID is set to zero.
EPSON PowerLite 7850p Projector
Note: Only the EPSON 802.11b card is guaranteed to work.
Other cards may not be compatible.
Depending on whether your projector is set up to
connect in Ad Hoc mode or Access Point mode (also called
infrastructure mode), you see one of these screens:
Ad Hoc mode
Presenting Over a Wireless Network
Using EMP NS Connection, you can project images shown
on your computer screen directly to your audience without
connecting the projector to your computer. Before you begin,
make sure you’ve installed EMP NS Connection from the
CD-ROM that came with your projector. See the User’s Guide
for installation instructions.
Note: Your computer must be running Microsoft
2000, Me or 98. EMP NS Connection does not support
Macitnosh.
Starting EasyMP
Before you can connect to the projector wirelessly, you have to
switch it to EasyMP mode.
1. Turn on the remote control and the projector. Press the
EasyMP button on the remote control to select EasyMP as
the source.
2. Locate the EPSON 802.11b card that came with your
projector. Insert it with the blue label facing outward.
®
Windows XP,
Access Point
mode
If you’ve already configured the projector for your wireless
network, go to “Projecting Wirelessly” on page 15. Otherwise,
continue with the next section.
6/03 EPSON PowerLite 7850p Projector - 11
EPSON PowerLite 7850p Projector
Configuring the Connection
You must configure both the projector and your network card
settings to project wirelessly.
You can configure the projector for either of the following
modes:
Ad Hoc mode: Lets you connect just one PC or laptop at a
time; you need the EPSON 802.11b card and a computer
with a wireless network card.
Access Point mode: Lets multiple users access the projector at
the same time, or trade off control of the projector; you need
the EPSON 802.11b card, a wireless access point, and one or
more computers with wireless network cards.
1. On the EasyMP Network Screen, make sure the Config
button in the lower right corner is highlighted. Then press
Enter on the remote control.
You see a screen similar to the following:
You see one of these screens:
Ad Hoc
mode
Access
Point
mode
2. Use the pointer button on the remote control to select
either
Easy connect mode (Ad Hoc mode) or Access
Point mode. Then press Enter.
3. Use the pointer button to highlight the
button next to the mode you selected, and press
Advanced
Enter.
4. Select the appropriate settings for your mode.
Use the pointer button on the remote control to
highlight a text box, then press
Enter. The outline of the
box turns green to indicate you’re in input mode. Tilt the
pointer button up to select individual letters in
alphabetical order, or down to select letters in reverse order.
Then tilt the pointer button right to move to the next
character position. When done entering a new setting, press
Enter.
To enter numbers, press the Num button on the remote
control. The button lights up to indicate that the numeric
keypad is active. Press the
Num button again to exit
numeric keypad mode. When done entering the setting,
press
Enter.
12 - EPSON PowerLite 7850p Projector 6/03
Projector name Give the projector a unique name to
make it easy to identify. To rename it,
highlight the Clear button and press
Enter. Then highlight the text box
and press Enter.
ESSID Ad Hoc: Enter an ESSID if your
Password for WEB
control
Projector keyword Turn this option on if you want to set
DHCP (Access Point
mode only)
IP address (Access
Point mode only)
Subnet mask.
(Access Point mode
only)
Gateway address
(Access Point mode
only)
WEP (Access Point
mode only)
network supports an SSID or ESSID
identifier. Otherwise, select Channel.
Access Point: Enter the name
assigned to your access point when it
was set up.
Remember that the ESSID is casesensitive.
If you want to create a password for
remote access, you can enter up to 8
alphanumeric characters.
up a security keyword so that only
people in the same room as the
projector can access it. When you
connect to the projector wirelessly, it
displays a four-digit randomized
keyword on the screen that you need
to enter when prompted.
If your access point assigns IP
addresses automatically, turn this
option on. Otherwise, turn it off and
assign an IP address, subnet mask,
and gateway address manually.
Enter the IP address you want to
assign the projector. It must be
formatted like other addresses on the
network; usually the first three
segments match the access point’s IP
address.
Enter a subnet mask formatted like
other subnet masks on your network.
Enter the IP address that was assigned
to your access point when it was set
up. If you don’t know the address, see
“Checking the Gateway IP Address”
on page 15.
If you want to add WEP encryption on
the projector for additional security of
wireless transmissions, highlight the
WEP button on the right of the screen
and press
Enter.
EPSON PowerLite 7850p Projector
Configuring the Network Settings on Your
Computer
Before connecting to the projector wirelessly, make sure the
network settings for your computer match the settings you
entered for your projector. Also, make sure that the Internet
Connection Firewall is disabled. (See your Windows online
help system for details.)
1. Access your wireless network Properties window. For
example, in Windows XP click
Network and Internet Connections
the
Network Connections icon. You see a screen similar to
this:
2. Right-click the
Wireless Network Connection icon and
select Properties. You see a screen like this:
Start > Control Panel >
. Then double-click
Right-click and select Properties
Click here
5. When done making settings, press
control to highlight the
Then press
Enter. Highlight the OK button again and press
OK button at the top of the screen.
ESC on the remote
Enter to return to the main EasyMP Network Screen.
6/03 EPSON PowerLite 7850p Projector - 13
EPSON PowerLite 7850p Projector
3. Click the
Configure button. Then click the Advanced tab
on the screen that appears. You see a screen like this:
4. Ad Hoc mode: Highlight
list and set the Value to
Access Point mode: Highlight
Value to
Infrastructure.
5. Ad Hoc mode: Highlight
Network Type in the Property
802.11 Ad Hoc.
Network Type and set the
SSID and set the Value to match
the name you gave the projector’s ESSID (for example,
CONF ROOM). If your network card uses channel mode
instead, set the correct channel, 1 to 11, to match that of
the projector.
Access Point mode: Highlight
SSID and set the Value to
match the name assigned to the access point.
6. Highlight
7. Click the
Encryption and make sure it is disabled.
General tab and make sure the network card or
wireless network device is enabled.
8. Ad Hoc mode: Click
OK to close the network card’s
properties dialog box. Then go to “Projecting Wirelessly”
on page 15.
Access Point mode: On the General tab, select
Protocol, then click the Properties button. You see this
screen:
Internet
9. If your access point uses DHCP, select
automatically
address
❏
IP address: Type in the IP address you want to assign
. Otherwise, select Use the following IP
and enter the required information.
to the computer. It must be formatted like other
addresses on the network; usually the first three
segments (XXX.XXX.XXX) match the access point’s IP
address.
❏
Subnet mask: For example, 255.255.255.000, but
this too must match how your network was set up.
❏
Default gateway: Enter the IP address that was
assigned to the access point when it was set up.
10. When done, click
11. Click the
Wireless Networks tab. You see this screen:
OK.
Obtain IP address
14 - EPSON PowerLite 7850p Projector 6/03
Note: If you don’t see this tab, you may need to enable your
wireless card or network device by clicking
Configure to
access the device settings; then follow any instructions on the
screen to enable the device.
EPSON PowerLite 7850p Projector
12. Verify that you’ve enabled your computer’s connection to
the access point. It should be listed as shown above, with
the small icon next to it, indicating a connection.
If it’s not listed, click
Configure and then type the name of
your access point.
13. When done, click
OK. Continue with “Projecting
Wirelessly” on page 15.
Checking the Gateway IP Address
If you’re entering IP addresses manually in Access Point mode
and need to find out the gateway IP address (the IP address of
your access point), make sure the wireless connection to the
access point is currently active, as described in the previous
section.
Note: If you can’t identify the gateway address using this
Windows utility, use the administrator’s utility software that
came with your access point.
1. Access your wireless network Properties window. For
example, in Windows XP click
Network and Internet Connections
double-click the
2. Right-click the
select
Status. Then click the Support tab.
Network Connections icon.
Wireless Network Connection icon and
Start > Control Panel >
. Then
The gateway’s (access point’s) IP address is listed as shown:
The first time you start NS Connection, you see a dialog
box asking you to select your network. Select the IP address
for your computer’s network adapter card and click
OK.
Note: If you don’t see your network adapter’s IP address,
allow a minute for it to appear. If your access point uses
DHCP, sometimes it takes a minute for the server to pick up
the IP address.
You see the screen below. (If you have previously started
NS Connection, this is the first screen you see.)
Gateway
address
Projecting Wirelessly
Once you’ve started EasyMP and set up your projector and
computer in either Ad Hoc mode or Access Point mode,
follow these steps to start NS Connection and project
wirelessly.
Note: You must have installed EMP NS Connection from your
projector CD-ROM. See the User’s Guide for installation
instructions.
1. Make sure you’ve inserted the EPSON 802.11b card in the
projector’s card slot (see page 11). Then select
Connection
from the Windows Start menu.
EMP NS
Note: Once you’ve selected the IP address for your network
adapter, you won’t see the Switch network dialog box when
you start NS Connection. If you want to change to a different
network adapter, click
Connection dialog box, then click
Extension on the EMP NS
Switch LAN.
If the connection is working properly, you see your
projector listed. If you have additional projectors on the
network, they are also listed, along with their status. The
color of the status icon next to each projector’s name
indicates its status:
❏ Gray: the projector is not connected
❏ Orange: the projector is connected to another
computer
❏ Green: the projector is connected to your computer
6/03 EPSON PowerLite 7850p Projector - 15
EPSON PowerLite 7850p Projector
2. If you don’t see your projector, check the following:
❏ Make sure your wireless signal is strong enough to
establish a connection (see your computer
documentation for details).
❏ Make sure your computer’s SSID matches the ESSID
you assigned to the projector (for example,
ROOM). Remember that both the SSID and ESSID are
CONF
case-sensitive. If you’re using channel mode (Ad Hoc
mode only), make sure the channel set for the
computer matches that of the projector.
❏ If you’re using Access Point mode, make sure the
projector and your computer are on the same subnet.
❏ Restart your computer and start NS Connection again.
❏ If you still don’t see your projector and you are using
Access Point mode, follow the instructions in
“Connecting in IP Connect Mode” on page 16 to
connect to the projector manually.
3. Once the name of your projector appears, select it and click
Connect. If more than one projector is listed, you can
select additional ones and connect to them at the same
time. If the selected projector is being used by another
person, you can still connect to it; doing so automatically
disconnects the other user.
4. If you are prompted for a keyword, enter the four-digit
number displayed on the EasyMP Network screen and click
OK.
5. Once the connection is established, you see your
computer’s image transmitted to the projection screen, and
a floating control bar:
6. From the control bar, you can access these NS Connection
features:
Provides help using NS Connection.
Lists which projectors are available or in use.
Lets you access the projector’s menu system
Lets you keep the projected image on the
7. When done with your presentation, click
and the EasyMP menus from an HTML
browser window.
screen, even if the image on your computer
or laptop changes.
Turns off the image and sound.
Lets you zoom in on a part of the image.
Lets you change the brightness, keystone
angle, contrast, color mode, and other basic
settings.
Lets you switch between the Video,
S-Video, and BNC ports.
Lets you switch between the Computer and
DVI ports.
Flashes three lights in sequence when the
computer and projector connection is active.
Disconnect on
the control bar.
Connecting in IP Connect Mode
Even if your projector and computer are on a different subnet
(Access Point mode only) or connecting over different routers,
you can establish a connection manually using IP Connect
Mode.
1. Start NS Connection on the computer to which you want
to connect. You see this screen:
Click here to minimize
16 - EPSON PowerLite 7850p Projector 6/03
EPSON PowerLite 7850p Projector
2. Click the
Click here
3. Click
Use IP connect mode, then click OK. You see this
screen:
Extension button. You see this screen:
The IP address appears in the Projector list and a
searching icon displays.
Indicates
search in
progress
If the search fails to find a projector with the specified IP
address, the searching icon turns into a question mark. If
this happens, run EasyMP to check the projector’s IP
address, then repeat this step.
Note: If you still don’t see the projector, make sure the
Internet Connection Firewall is disabled.
6. Click the projector you want to connect to, then click the
Connect button. If more than one projector is listed, you
can select additional projectors and connect to them at the
same time.
7. If you are prompted for a keyword, enter the four-digit
number displayed on the EasyMP Network screen and click
OK.
4. Click
IP connection. You see this screen:
5. Enter the projector’s IP address and click
Search.
Managing Projectors from a Remote Computer
The EasyManagement software lets you monitor and control
projector(s) from a remote computer. These features are
intended for use by network administrators.
❏ Use EMP Monitor to see your projectors’ status, switch
image sources, and control basic settings.
❏ Use the mail notification function to receive e-mail alerts
about possible problems.
❏ Use a network management utility running SNMP, such as
HP OpenView,
a pre-existing system.
Note: A plug-in is available to allow you to manage your
projectors in HP OpenView. Additionally, other SNMP
management utilities may be available in the future. Check with
your dealer or EPSON for availability.
6/03 EPSON PowerLite 7850p Projector - 17
™
to manage your facility’s equipment from
EPSON PowerLite 7850p Projector
Brightness Control
High
Low
Video
Audio
Setting
User's Logo
Advanced1
About
Reset All
Projector ID
Network
Reset
Execute
: 1
[Menu]: Exit
[ ]: Enter
[ ]: Select
Effect
Advanced2
COM Port
BNC Sync Ter mination
OFF
Set
Set
RS-232C
USB
Auto setup
OFF
If you’re using a network management utility running SNMP,
you can configure your network to send trap alerts even without a
plug-n. See the User’s Guide for more information.
Make sure you have installed the EMP Monitor software
(included on the projector’s CD-ROM) on the computer you
want to use to monitor your projectors. (See the User’s Guide
for instructions.)
Note: Your computer must be running Microsoft Windows XP,
2000, Me or 98.
Setting Up the Projector on a Wired Network
This section explains how to configure projectors on a wired
network. You can also configure projectors for wireless
communication. See “Configuring the Connection” on
page 12 for details.
1. Insert the PCMCIA LAN card into the card slot on the
back of the projector. Then connect the projector to your
network using a commercially available 100baseTX or
10baseT network cable.
2. Turn on the projector.
3. Press the
Network from the Advanced2 menu.
Menu button on the remote control and select
Video
Audio
Effect
Setting
User's Logo
Advanced1
Advanced2
About
Reset All
Brightness Control
Projector ID
Network
COM Port
Auto setup
BNC Sync Ter mination
Reset
:
High
: 1
RS-232C
:
:
ONONOFF
Set
:
ONONOFF
Execute
Low
Set
USB
Select
Network
❏ To change the network addresses from the projector’s
control panel, press the right and left arrow buttons to
select the part of the address you want to enter, then
use the up and down arrow buttons to increase or
decrease the numeric value.
Increase or
decrease
the value
Select the part of the
address to change
5. When you finish changing an address in the network menu,
press the
Enter button (on the remote control) or the
Auto/Enter button (on the projector). This stores the
value.
6. When you’re done making all necessary changes, press
ESC
to exit the menu system.
Opening and Closing EMP Monitor
To start EMP Monitor, click
Programs > EPSON Projector > EMP Monitor
Start > Programs or All
.
If you’ve added the program to the Startup programs folder, it
may already be open. If so, click the icon in the system tray on
the lower-right corner of your screen to display the EMP
Monitor window:
[ ]: Select
[ ]: Enter
[Menu]: Exit
4. If your network assigns addresses automatically, turn on
DHCP.
If your network does not assign addresses automatically,
turn off
Subnet Mask, Gateway Address, and MAC Address, as
DHCP and enter the projector’s IP Address,
needed.
❏ To enter numbers using the remote control, press the
Num button until it lights, then use the numeric
keypad.
Zero
Num button
18 - EPSON PowerLite 7850p Projector 6/03
Click here to start EMP Monitor
To close EMP Monitor, right-click the program icon shown
above, then select
Exit.
EPSON PowerLite 7850p Projector
Registering Projectors in EMP Monitor
Before you can monitor a projector, you have to register it.
Follow these steps:
1. Open EMP Monitor. You see this screen:
Click here
2. Click
Register projector. You see this screen:
Click here
You see this screen listing all registered projectors:
Note: To delete a projector from the list, highlight the
projector name, and click
5. Click
Close. You see the status of each of your registered
Delete.
projectors on the main EMP Monitor screen:
3. Click
Auto detect to locate projectors currently operating
on the network. Or click
Manual registration and enter
the projector’s name and network address.
Note: If Auto detect fails to find the projector, your projector
may not be connected or configured correctly for the network.
Any projectors found on the network are listed:
Click here
4. Select each projector you want to add by clicking its name
and clicking
Add. When you’re done, click Close.
Monitoring Your Projectors
The EMP Monitor screen lets you monitor your projectors
using the Status, Video Source, and Error icons shown below.
This lets you see which projectors are currently being used,
from which source (or port) they are projecting an image, and
if a problem occurs.
Status icon Video Source icon Error icon
Note: To monitor a projector when it’s in standby mode (plugged
in but not projecting), you must first select
Standby Mode setting in the projector’s Advanced1 menu. You
Network ON as the
can monitor up to 64 projectors.
For detailed status information, select the projector and click
View details.
6/03 EPSON PowerLite 7850p Projector - 19
EPSON PowerLite 7850p Projector
The following tables explain the status, video source, and error
icons.
Status icons
(green) Projecting; no problems
(dark) Turned off; no problems
(green) Projecting; problems detected
(dark) Turned off; problems detected
Network error (for example, not connected to
network or power cable disconnected).
Network OFF
Video source icons
You may also see this error if
is selected in
Computer
BNC
S-Video
Video
DVI
Standby Mode.
Controlling Your Projectors
The control buttons in the upper-right of the EMP Monitor
screen let you turn the projectors on and off and select video
sources. (Hold the mouse pointer over a button to see a
description of its meaning.) Make sure you’ve selected the
projector(s) you want to operate before clicking one of the
buttons.
Control buttons
Note: To turn on a projector when it’s in standby mode (plugged in
but not projecting), first select
Mode
setting in the projector’s Advanced1 menu.
Network ON as the Standby
Configuring the Monitoring Interval
If you need to have the most current status information about
your projectors, click the
Refresh button on the EMP
Monitor screen.
You can also select how often EMP Monitor checks the
projector status:
1. From the Tool menu, select
Configuration. You see this
screen.
Error icons
Lamp replacement notification (the lamp is
nearing the end of its life; see page 22)
High-speed cooling in progress (the
projector is getting too hot but continues to
operate)
Overheating (projection turned off
automatically)
Lamp out or lamp cover open
Fan error
Sensor error
Internal problem
20 - EPSON PowerLite 7850p Projector 6/03
Note: If you want EMP Monitor to run whenever you start
your computer, click
2. Select the desired update interval and click
Add to Startup.
OK.
EPSON PowerLite 7850p Projector
Understanding the Notification Messages
If a projector experiences a problem, it can send an e-mail
message to each of the addresses you provided using EMP
NetworkManager. The message includes the heading
“EPSON Projector” in the subject line. The body of the
message contains the name of the projector, the projector’s IP
address, and a description of the problem. The problem
descriptions are similar to the errors reported by EMP
Monitor listed on page 20.
If a plus (+) sign appears before the description, it indicates
that a problem has occurred. A minus (–) sign appears when
the problem goes away or is resolved.
Note: If a projector develops a critical problem, it may not be
possible for it to report the error.
Projector Status Lights
s
Power light
Temperature lightLamp light
Light Description and solution
Both the P power
light and
temperature
lights are flashing
orange.
Both the P power
light and
temperature
lights are red.
P Power light is
red; temperature
light is flashing red.
Rapid cooling in progress. Although this is
not an abnormal condition, projection
stops automatically if the temperature rises
higher. Make sure there is plenty of space
around and under the projector, and that
the air filters and vents are clear.
The projector has overheated, which turns
off the lamp automatically. Wait about 5
minutes for the projector to cool, then
unplug the power cord. Make sure room
temperature is not above 95 °F (35 °C) and
there is plenty of space around and under
the projector. Then plug the power cord
back in and press the P Power button to
turn the projector on again.
If it still overheats, check that the air filter
isn’t clogged. Clean or replace it as
described on page 22.
If the projector still overheats after you
clean the air filter, the problem may be
caused by damage to the cooling fan or
temperature sensor.
Warning: Except for replacing the lamp or
cleaning and replacing the air filters, do not
attempt to service the projector yourself.
There is a problem with a fan or
temperature sensor. Unplug the power
cord and contact EPSON for help.
The lights on top of the projector indicate the projector’s
status and let you know when a problem occurs.
Light Description and solution
All lights are off. Make sure the power cord is connected
The P power light
is orange.
The P power light
is flashing green.
The P power light
is green.
The P power light
is flashing orange.
securely both at the power outlet and the
projector. If you’ve just replaced the lamp,
make sure the cover is on (see page 22)
The projector is in sleep mode. Press the
P Power button to turn it on.
The projector is warming up. Wait for the
image to appear.
The projector is operating normally.
The projector is cooling down. Don’t
unplug it until the light stops flashing and
remains orange. If you want to turn it back
on, wait until the light stops flashing.
Lamp light is
flashing orange.
P Power light is
red; lamp light is
flashing red
All lights are red. The projector has an internal problem.
.
It’s time to replace the lamp. See page 22
for instructions.
Warning: If you continue to use the lamp
after the replacement warning, there is an
increased possibility that the lamp may
break.
The lamp has burned out. Replace it as
described on page 22.
If these lights come on after replacing the
lamp, make sure the lamp is fully inserted
and the lamp cover is closed.
Unplug the power cord and contact EPSON
for help.
Cleaning the Lens
Clean the lens whenever you notice dirt or dust on the surface.
❏ Use a canister of compressed air to remove dust.
❏ To remove dirt or smears on the lens, use lens-cleaning
paper. If necessary, moisten a soft cloth with lens cleaner
and gently wipe the lens surface.
Caution: Do not use glass cleaner to clean the lens.
6/03 EPSON PowerLite 7850p Projector - 21
EPSON PowerLite 7850p Projector
Cleaning the Projector
Before you clean the case, first turn off the projector and
unplug the power cord.
❏ To remove dirt or dust, wipe the case with a soft, dry,
lint-free cloth.
❏ To remove stubborn dirt or stains, moisten a soft cloth with
water and a mild detergent. Then wipe the case.
❏ Do not use wax, alcohol, benzene, paint thinner, or other
chemical detergents. These can damage the case.
Cleaning the Air Filters and Vents
Clean the air filters and air intake vents after every 100 hours
of use. If they are not cleaned periodically, they can become
clogged with dust, preventing proper ventilation. This can
cause overheating and damage the projector.
Follow these steps:
1. Turn off the projector and unplug the power cord.
2. To clean the intake vents, EPSON recommends using a
small vacuum cleaner designed for computers and other
office equipment. If you don’t have one, gently clean the
vents with a soft brush (such as an artist’s paintbrush).
3. Gently turn the projector over and remove the filters from
the side and bottom of the projector. Then use a small
vacuum cleaner or soft brush to clean the filters. Slide the
filters back into place when you’re done.
Slide the filter
up here . . .
. . . and here
Lower the handle
4. If the dirt is difficult to remove or a filter is broken, replace
the filters as described below. Contact your dealer or call
EPSON at (800) 873-7766 in the United States to obtain
new ones. In Canada, please call (800) 463-7766 for dealer
referral.
Replacing the Lamp and Air Filters
The life span of the projection lamp is about 2000 hours (high
brightness mode) or 3000 hours (low brightness mode). It is
time to replace the lamp when:
❏ The projected image gets darker or starts to deteriorate.
❏ The message
LAMP REPLACE appears on the screen when
the lamp comes on and the lamp warning light is
flashing orange. To maintain projector brightness and
image quality, replace the lamp as soon as possible.
❏ The lamp warning light is flashing red (the lamp is
burnt out).
Contact your dealer or call EPSON at (800) 873-7766 in the
United States for a replacement lamp. Request part number
V13H010L22. In Canada, please call (800) 463-7766 for
dealer referral.
Note: When you get a replacement lamp for your projector, new
air filters are included. You should replace the filters when you
replace the lamp. You can check how long the lamp has been in
use (see page 23).
Wa rn ing : Let the lamp cool fully before replacing it. In the
unlikely event that the lamp has broken, small glass fragments
may be present and should be removed carefully to avoid injury.
22 - EPSON PowerLite 7850p Projector 6/03
EPSON PowerLite 7850p Projector
Follow these steps to replace the lamp and air filters:
1. Turn off the projector.
2. When the P power light stops flashing, unplug the power
cord.
3. Let the projector cool for at least half an hour (if it has been
on). The lamp is extremely hot immediately after use.
4. Turn the projector upside-down and remove the air filters
at the side and bottom of the projector.
Slide the filter
up here . . .
Lower the
handle
. . . and here
5. Insert the two new air filters. They should click into place.
6. To remove the lamp cover, insert the screwdriver supplied
with the spare lamp (or another flat-tipped screwdriver),
into the space beside the air vent to gently lift the lamp
cover off.
Insert the screwdriver here
7. Loosen the two screws holding the lamp in place. (You
don’t need to remove them.)
8. Grasp the wire handle as shown and pull the lamp straight
out.
9. Gently insert the new lamp.
10. Once the lamp is fully inserted, tighten its screws and
replace the cover. (The projector won’t come on if the lamp
cover is loose.)
11. Reset the lamp timer as described in the next section.
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer
using the projector’s About menu.
1. Press the
Menu button on the remote control (or on the
projector’s control panel). You see the main menu.
2. Use the pointer button on the remote control (or the
arrow buttons on the projector) to highlight
press
Enter.
About, then
6/03 EPSON PowerLite 7850p Projector - 23
EPSON PowerLite 7850p Projector
Video
Audio
Setting
User's Logo
Advanced1
About
Reset All
Frequency
Video Source
V ---.---Hz
Reset Lamp Timer
H ---.---kHz
Lamp
1400H
SYNC Mode
SYNC Polarity
------
V ------
H ------
Resolution
Refresh Rate
---.-- Hz
----x ----
Computer1
Input Signal
Analog-RGB
Execute
[ ]: Select
[ ]: Enter
[Menu]: Exit
Effect
Advanced2
You see this screen:
[ ]: Enter
Lamp
Reset Lamp Timer
Video Source
Input Signal
Frequency
SYNC Polarity
SYNC Mode
Resolution
Refresh Rate
Video
Audio
Effect
Setting
User's Logo
Advanced1
Advanced2
About
Reset All
[ ]: Select
Note: The lamp usage timer shows
1400H
:
Execute
Computer1
:
: Analog-RGB
H ---.---kHz
:
V ---.---Hz
H ------
:
V ------
:
------
:
----x ----
:
---.-- Hz
Lamp usage
[Menu]: Exit
0H until you’ve used the
lamp for at least 10 hours.
3. Select
Reset Lamp Timer,
then press
Enter. You see
this prompt:
4. Select
5. When you’re finished, press
Yes, then press Enter.
ESC or Menu to exit.
Transporting the Projector
The projector contains many glass and precision parts. Follow
these guidelines to prevent injury or damage when
transporting it:
❏ When hand-carrying the projector, you should use the
handle to carry it only a short distance (for example, to set
it on a table).
❏ When shipping the projector for repairs, use the original
packaging material if possible. If you do not have the
original packaging, use equivalent materials, placing plenty
of cushioning around the projector.
❏ When transporting the projector a long distance, first place
it in a hard-shell shipping case, and then pack it in a firm
box, placing cushioning around the case. (An optional
ATA molded hard shell case is available from EPSON; see
page 24.)
Optional Accessories
Product
Replacement lamp (includes air filters) V13H010L22
Air filter replacement V13H134A01
Carrying cases:
ATA molded hardshell case
ATA shipping case
Ceiling mount
Suspension adapter
False ceiling plate
Middle Throw Zoom Lens
Long Throw Zoom Lens
Kensington® security lock ELPSL01
Portable projection screens:
50-inch portable screen
60-inch portable pop-up screen
80-inch portable pop-up screen
Macintosh adapter set (includes monitor adapter
and desktop adapter)
Remote control cable set V12H005C28
DVI to DVI digital video cable, 10 ft.
DVI to DFP digital video cable, 10 ft.
Distribution amplifier ELPDA01
S-video cable ELPSV01
High resolution document imager
High resolution document camera
You can purchase these accessories from your dealer, by calling
EPSON at (800) 873-7766, or by visiting the EPSON Store
at www.epsonstore.com (U.S. sales only). In Canada, please
call (800) 463-7766 for dealer referral.
Part
number
ELPKS48
ELPKS46
ELPMB40
ELPMBAPL
ELPMBFCP
V12H004M03
V12H004L05
ELPSC06
ELPSC07
ELPSC08
ELPAP01
V12H005C20
V12H005C21
ELPDC02
V12H064020
SM
Related Documentation
CPD-16397 EPSON PowerLite 7850p User’s Guide
CPD-16396 EPSON PowerLite 7850p Quick Setup
sheet
Note: EPSON shall not be liable for any damages incurred
during transportation.
24 - EPSON PowerLite 7850p Projector 6/03
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