Epson EMP-7850 Product information guide

Epson EMP-7850 Product information guide
PRODUCT INFORMATION GUIDE
EPSON
UPDATE
6/17/03
This package provides a new multimedia projector product section to be added to the
EPSON ® Product Information Guide. The table of contents of this section is listed below.
EPSON PowerLite® 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
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EPSON PowerLite 7850p Projector
Zoom ring
Focus ring
Temperature
Lamp light
light
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
Power light
Control
panel
Air
exhaust
vent
Projection distance 2.6 to 36.1 feet (0.8 to 11 meters)
Remote
control
receiver
Projection methods Front, rear, upside-down front
(ceiling mount), and upside-down rear
Foot
release
lever
Internal sound
system
Air Filter
Adjustable
foot
Optical aspect ratio 4:3 (horizontal:vertical)
Handle
Lens cover
Type B
USB port
Type A
USB port
RS-232
DVI
serial
port
port
Computer1
port
Remote
control
receiver
5 W monaural
Zoom ratio
1:1.35
Noise level
36 dB
Keystone correction Automatic (vertical only); manual
adjustment capability ±40° (vertical),
±20° (horizontal)
Security lock
Projection Lamp
Type
UHE (Ultra High Efficiency)
Power consumption 250 W
Lamp life
About 2000 hours (when Brightness
Control set to high) and aabout 3000
hours (when Brightness Control set
Rear
adjustable
foot
to low)
AC power inlet
Audio-out
port
Type II
PCMCIA Card
slot
Part number
Audio-in port (for
Computer and DVI)
Remote Control
BNC ports
Monitor-out port
S-video port
and related
audio ports
Eject button
Card indicator light
Speaker
Remote port (for
optional hard-wired RC
Range
33 feet (10 meters)
Batteries (2)
Alkaline AA
Mouse Compatibility
Supports USB
Video port and
related audio ports
Dimensions
Projector Specifications
General
Type of display
V13H010L22
Poly-silicon Thin Film Transistor
(TFT), active matrix
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
Size of LCD panels Diagonal: 1.0 inch (25.4 mm)
Rated frequency
50 to 60 Hz AC
Lens
F=1.7 to 2.3, f=28 to 37 mm
Power supply
Resolution
1024 × 768 pixels (XGA, native format)
100 to 120 VAC, 3.6 A
200 to 240 VAC, 1.6 A
Power
consumption
Color reproduction 24 bit, 16.8 million colors
6/03
Operating: 350 W
Standby: 1.5 W with Network OFF
47 W with Network ON
EPSON PowerLite 7850p Projector - 1
EPSON PowerLite 7850p Projector
Environmental
Temperature
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 × 768).
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
Mode
Refresh Rate (Hz)
Resolution
VGAEGA
70
640 × 350*
VGA—60
60
640 × 480*
VESA—72
72
640 × 480*
VESA—75
75
640 × 480*
VESA—85
85
640 × 480*
SVGA—56
56
800 × 600*
SVGA—60
60
800 × 600*
SVGA—72
72
800 × 600*
Compatible Video Formats
SVGA—75
75
800 × 600*
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).
SVGA—85
85
800 × 600*
XGA—60
60
1024 × 768
XGA—70
70
1024 × 768
XGA—75
75
1024 × 768
XGA—85
85
1024 × 768
The projector supports these international video standards:
XGA—100
100
1024 × 768
XGA—120
120
1024 × 768
Safety
United States
Canada
CE Marking
FCC 47CFR Part15B Class B (DoC)
UL1950 Rev. 3
ICES-003 Class B
CSA C22.2 No. 950-95 (cUL)
Directive 73/23/EEC, 89/336/EEC
EN 55022, EN 55024
Mode
Refresh rate (Hz)
SXGA1—70
70
1152 × 864*
NTSC
60
SXGA1—75
75
1152 × 864*
NTSC 4:3
60
SXGA1—85
85
1152 × 864*
PAL
50
SXGA1—100
100
1152 × 864*
M-PAL
60
SXGA2—60
60
1280 × 960*
N-PAL
50
SXGA2—75
75
1280 × 960*
PAL—60
60
SXGA2—85
85
1280 × 960*
SECAM
50
SXGA3—60
60
1400 × 1050*
HDTV (720p)
60
SXGA3—75
75
1400 × 1050*
HDTV (1080i)
60
SXGA3—85
85
1400 × 1050*
SDTV (480i)
60
SDTV (480p)
60
SDTV (625i)
50
SDTV (625p)
50
UXGA—60
UXGA—65
UXGA—70
UXGA—75
UXGA—80
UXGA—85
60
65
70
75
80
85
1600 ×
1600 ×
1600 ×
1600 ×
1600 ×
1600 ×
Compatible Computer Display Formats
MAC13
67
640 × 480*
You can connect the projector to a wide range of computers,
including PCs and laptops, Apple Macintosh,® Power
Macintosh® series (including G3 and G4 systems),
PowerBook® computers, many iMac® and iBook® series
systems, and high-end workstations such as the Sun®
SPARCstation.™
MAC16
75
832 × 624*
MAC19
75
1024 × 768
MAC21
75
1152 × 870*
* The image is resized using EPSON’s SizeWise Technology.
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.
2 - EPSON PowerLite 7850p Projector
1200*
1200*
1200*
1200*
1200*
1200*
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EPSON PowerLite 7850p Projector
Standard Lens
Positioning the Projector
To determine the diagonal size of an image (in inches) when
you know the projection distance:
Follow these guidelines:
❏ Maximum diagonal size =
((2.54 × projection distance) / 100) × 36) + 2.13
❏ 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.
❏ 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) × 100 / 2.54
27 to 36.1 ft
7 to 9.5 ft
2.6 to 3.5 ft
Distance
from screen
Middle Throw Lens (V12H004M03)
To determine the diagonal size of an image (in inches) when
you know the projection distance:
❏ Place it within 10 feet of an electrical outlet or extension
cord and 5 feet of your computer or video source.
❏ Maximum diagonal size =
((2.54 × projection distance ) / 100) × 27.42) + 1.49
Minimum diagonal size =
((2.54 × projection distance) / 100) × 20.48) + 1.1
❏ 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.
To determine the projection distance (in inches) when you
know the diagonal size of the screen image:
❏ If possible, place the projector level with the bottom of the
screen.
❏ Maximum projection distance =
((diagonal size – 1.1) / 20.48) × 100 / 2.54
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 Keystone
buttons (see page 7) or using Quick Corner (see page 8).
❏ Minimum projection distance =
((diagonal size – 1.49) / 27.42) × 100 / 2.54
Long Throw Zoom Lens (V12H004L05)
To determine the diagonal size of an image (in inches) when
you know the projection distance:
If you place the projector higher than the bottom of the
screen, the image will be square, but it won’t fill the screen.
❏ Maximum diagonal size =
((2.54 × projection distance) / 100) × 20.4) + 1.93
Calculating Image Size and Projection
Distance
❏ Minimum diagonal size =
((2.54 × projection distance) / 100) × 15.23) + 1.45
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.
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
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.
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EPSON PowerLite 7850p Projector - 3
EPSON PowerLite 7850p Projector
Playing Sound Through the Projector
Connecting the Projector
You can play sound through the projector’s speaker system or
you can attach an external speaker system.
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,® you can also connect over a wireless network, or
view images on a memory card or digital camera.
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.
Note: The preview feature lets you see all the sources at a glance,
so you can easily switch among them. See page 5.
❏ 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.
Types of Connections
The following connections are possible, depending on the
signal your equipment generates and its available output ports.
Computer equipment
Output signal
Required cable
Analog RGB video
VGA cable
BNC cable
VGA-to-BNC cable
DVI
DVI-D dual-link cable (DVI-to-DVI or
DFP-to-DVI, available from EPSON; see
page 24)
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)
BNC cable
Component video—
HDTV (YPbPr)
BNC cable
RGB video
VGA cable
BNC cable
Use with Video
connection
Use with Computer or
DVI connection
To connect external speakers, use the 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.
Note that the projector’s 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.
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 Type B USB port. The wireless mouse function
is supported on systems with a USB port running Windows®
XP, 98, 2000, or Me, or Macintosh OS 8.6 to OS X 10.2. See
the User’s Guide for more information.
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 Setting menu.
3. Change the 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.)
4 - EPSON PowerLite 7850p Projector
Use with S-video
connection
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EPSON PowerLite 7850p Projector
❏ The projector’s control panel has two Source buttons.
Starting Up the Projector
Use the Computer/DVI button to
switch between EasyMP,™ and
between equipment connected to the
Computer and DVI ports.
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).
Use the Video/BNC button to switch
between equipment connected to the
Video, S-Video, and BNC ports.
Turning On the Projector
❏ 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.
1. Remove the lens cap.
2. Plug in the projector.
3. Wait a few seconds until the projector’s P power light stops
flashing and turns orange.
4. Press the red P Power button on top of the projector or on
the remote control.
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.
Power button
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.
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.
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.
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.
Warning: Never look into the lens when the lamp is on. This
can damage your eyes.
.
Currently selected source
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.
Computer (Analog-RGB)
Computer
Selecting the Image Source
DVI
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:
BNC
Video
S-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.
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EPSON PowerLite 7850p Projector - 5
EPSON PowerLite 7850p Projector
2. Press the corresponding Source button on the remote
control to switch to the desired source. Or press the ESC
button to exit the preview screen without switching sources.
Select the
VGA Display
dialog box
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
Mirror Displays
is checked
❏ Make sure the cables are connected correctly.
4. Make sure the Mirror Displays checkbox is selected.
❏ Make sure the power light is green and not flashing and the
lens cover is off.
If you’re using a laptop with Macintosh® OS 9.x:
❏ Try restarting your computer.
You may need to set up your system to display on the
projector screen as well as the LCD screen. Follow these steps:
❏ 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.)
1. From the Apple menu, select Control Panels, then click
Monitors or Monitors and Sound.
2. Click the Arrange icon.
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.
Click here
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.
Drag one monitor
icon on top of the
other
❏ 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.
3. Drag one monitor icon on top of the other.
If you’re using a laptop with Macintosh OS X:
If the Arrange option isn’t available, do the following:
You may need to set up your system to display on the
projector screen as well as the LCD screen. Follow these steps:
1. Click the Monitor icon if necessary.
Click here
1. From the Apple menu, select System Preferences, then
select Displays.
2. Make sure the VGA Display dialog box is selected.
3. Click the Arrange tab.
Select a
Simulscan
resolution
2. Select a Simulscan resolution as shown. (Allow a few
seconds for the projector to sync up.)
6 - EPSON PowerLite 7850p Projector
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EPSON PowerLite 7850p Projector
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
Once you see your image, you may need to make certain
adjustments.
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.
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 W to make it bigger, or
toward the T to make it smaller.
Focus ring
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.
Zoom ring
Projector tilted up
Corrected image
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 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.
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
projector’s control panel or
the Keystone menu (see
“Using Keystone
Correction” on page 7).
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.
❏ If the image has no parallel
sides, you can adjust its
shape using Quick Corner™
(see page 8).
Keystone correction
Keystone correction
Quick Corner correction
You cannot use both keystone
correction and Quick Corner at the same time.
Using Keystone Correction
To adjust your image when it is wider on one side, do one of
the following:
2. Once the image is positioned where you want it, release the
lever to lock the foot in position.
❏ 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.
3. If necessary, you can finetune the height by turning
the projector’s rear feet.
Projector foot
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EPSON PowerLite 7850p Projector - 7
EPSON PowerLite 7850p Projector
Correcting Computer Images
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.
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
Auto
remote control (or the
button
Auto/Enter button on the
projector’s control panel).
This automatically resets the projector’s tracking, sync,
resolution, and position settings.
❏ Press the Menu button on the remote control, select the
Setting menu, and press Enter. From the Setting menu,
select H/V-Keystone in the Keystone menu and press
Enter. Select V-Keystone (for vertical keystone distortion)
or H-Keystone (for horizontal keystone distortion) and
press Enter. Use the
pointer button on the remote
control to adjust the keystone setting as needed.
Note: You must be projecting an image for this button to have
any effect. The Auto button works only with computer images.
Using Quick Corner
Use Quick Corner to correct the image shape when it’s
uneven on all sides.
If vertical stripes appear in the projected image and the Auto
button doesn’t correct the problem, hold down the Shift
button on the projector’s control panel while pressing either
the Tracking + or the Tracking – button.
1. Press the Menu button on the remote control (or on the
projector’s control panel).
2. Select the Setting menu and press Enter.
3. From the Setting menu, select Keystone and press Enter.
4. Select 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
to adjust any remaining
corners.
If the image appears fuzzy or flickers and the Auto button
doesn’t correct the problem, hold down the Shift button while
pressing either the Sync + or Sync – button.
[ / ]:Adjust
Adjust
[ ]
:Move next
[ESC] :Return (Press 1 second to
reset)
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. 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.
8 - EPSON PowerLite 7850p Projector
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EPSON PowerLite 7850p Projector
Shutting Down the Projector
Using the Remote Control
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.
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.
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 Sleep Mode option in 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).
Turn on
remote control
This table summarizes the remote control functions.
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 Power button on
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 power light flashes
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.
Button
Function
E-Zoom
Zooms in on a portion of your image.
Page
Advances to the next or previous image in a
slideshow.
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
select from several settings, and save a different
setting for each computer or video source.
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.
Freeze
Halts action. Press again to resume action.
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.
To turn the projector on again, wait until the orange light
stops flashing. Then press the P Power button.
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.
Effect
Activates the pointer tool. To use a different style
pointer, continue pressing the Effect button to
select the desired style.
Enter
Selects a highlighted menu option, or functions as
the left mouse button when the remote control is
used in place of your computer’s mouse.
Esc
Displays the previous menu when using the menu
system. Functions as the right mouse button when
the remote control is used in place of your
computer’s mouse.
Menu
Displays the on-screen menu system.
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.
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Help
Displays the on-screen help system.
Source
buttons
Switch to the equipment connected to the
corresponding port, or to EasyMP if you are
projecting wirelessly or using a memory card.
EPSON PowerLite 7850p Projector - 9
EPSON PowerLite 7850p Projector
Button
Function
Button
Function
Preview
Previews connected sources (see page 5).
Preset
Selects a preset selection of options for displaying
computer images.
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.
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).
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.
Using the Control Panel
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.
This table summarizes the functions of the buttons on top of
the projector.
Video
Brightness Control : High
Audio
Projector ID
Network
Effect
Function
Power
Turns the projector on or off.
Low
Set
Set
: RS-232C USB
Auto setup
: ON OFF
BNC Sync Termination : ON OFF
Setting
Button
:1
COM Port
User's Logo
Advanced1
Advanced2
Reset
Execute
About
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 onscreen menu and help systems.
10 - EPSON PowerLite 7850p Projector
Reset All
[ ESC ]: Return [
/
]: Select [
]: Set
2. Press the right or left side of the
increase or decrease the ID value.
[Menu]: Exit
pointer button to
3. Press Enter to set the value.
4. When done, press ESC to exit the menu system.
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EPSON PowerLite 7850p Projector
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
select a number to match the
ID of the projector(s) you
want to operate.
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:
Zero
The ID button’s light shuts off and the new ID is registered.
Ad Hoc mode
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.
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.
Access Point
mode
Note: Your computer must be running Microsoft® Windows XP,
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.
If you’ve already configured the projector for your wireless
network, go to “Projecting Wirelessly” on page 15. Otherwise,
continue with the next section.
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.
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EPSON PowerLite 7850p Projector - 11
EPSON PowerLite 7850p Projector
Configuring the Connection
You see one of these screens:
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
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:
Access
Point
mode
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.
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 Advanced
button next to the mode you selected, and 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.
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EPSON PowerLite 7850p Projector
Projector name
ESSID
Configuring the Network Settings on Your
Computer
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.
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.)
Ad Hoc: Enter an ESSID if your
network supports an SSID or ESSID
identifier. Otherwise, select Channel.
1. Access your wireless network Properties window. For
example, in Windows XP click Start > Control Panel >
Network and Internet Connections. Then double-click
the Network Connections icon. You see a screen similar to
this:
Access Point: Enter the name
assigned to your access point when it
was set up.
Remember that the ESSID is casesensitive.
Password for WEB
control
If you want to create a password for
remote access, you can enter up to 8
alphanumeric characters.
Projector keyword
Turn this option on if you want to set
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.
DHCP (Access Point
mode only)
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.
IP address (Access
Point mode only)
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.
Subnet mask.
(Access Point mode
only)
Enter a subnet mask formatted like
other subnet masks on your network.
Gateway address
(Access Point mode
only)
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.
WEP (Access Point
mode only)
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.
Right-click and select Properties
2. Right-click the Wireless Network Connection icon and
select Properties. You see a screen like this:
Click here
5. When done making settings, press ESC on the remote
control to highlight the OK button at the top of the screen.
Then press Enter. Highlight the OK button again and press
Enter to return to the main EasyMP Network Screen.
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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:
9. If your access point uses DHCP, select Obtain IP address
automatically. Otherwise, select Use the following IP
address and enter the required information.
❏ IP address: Type in the IP address you want to assign
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.
4. Ad Hoc mode: Highlight Network Type in the Property
list and set the Value to 802.11 Ad Hoc.
Access Point mode: Highlight Network Type and set the
Value to Infrastructure.
❏ Subnet mask: For example, 255.255.255.000, but
this too must match how your network was set up.
5. Ad Hoc mode: Highlight 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.
❏ Default gateway: Enter the IP address that was
assigned to the access point when it was set up.
10. When done, click OK.
11. Click the Wireless Networks tab. You see this screen:
Access Point mode: Highlight SSID and set the Value to
match the name assigned to the access point.
6. Highlight Encryption and make sure it is disabled.
7. Click the 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 Internet
Protocol, then click the Properties button. You see this
screen:
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.
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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.
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.
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 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.
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.
You see the screen below. (If you have previously started
NS Connection, this is the first screen you see.)
1. Access your wireless network Properties window. For
example, in Windows XP click Start > Control Panel >
Network and Internet Connections. Then
double-click the Network Connections icon.
2. Right-click the Wireless Network Connection icon and
select Status. Then click the Support tab.
The gateway’s (access point’s) IP address is listed as shown:
Gateway
address
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 Extension on the EMP NS
Connection dialog box, then click 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:
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.
❏ Gray: the projector is not connected
❏ Orange: the projector is connected to another
computer
Note: You must have installed EMP NS Connection from your
projector CD-ROM. See the User’s Guide for installation
instructions.
❏ Green: the projector is connected to your computer
1. Make sure you’ve inserted the EPSON 802.11b card in the
projector’s card slot (see page 11). Then select EMP NS
Connection from the Windows Start menu.
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EPSON PowerLite 7850p Projector - 15
EPSON PowerLite 7850p Projector
6. From the control bar, you can access these NS Connection
features:
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).
Provides help using NS Connection.
❏ Make sure your computer’s SSID matches the ESSID
you assigned to the projector (for example, CONF
ROOM). Remember that both the SSID and ESSID are
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.
Lists which projectors are available or in use.
Lets you access the projector’s menu system
and the EasyMP menus from an HTML
browser window.
❏ If you’re using Access Point mode, make sure the
projector and your computer are on the same subnet.
Lets you keep the projected image on the
screen, even if the image on your computer
or laptop changes.
❏ Restart your computer and start NS Connection again.
Turns off the image and sound.
❏ 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.
Lets you zoom in on a part of the image.
Lets you change the brightness, keystone
angle, contrast, color mode, and other basic
settings.
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.
Lets you switch between the Video,
S-Video, and BNC ports.
Lets you switch between the Computer and
DVI ports.
4. If you are prompted for a keyword, enter the four-digit
number displayed on the EasyMP Network screen and click
OK.
Flashes three lights in sequence when the
computer and projector connection is active.
5. Once the connection is established, you see your
computer’s image transmitted to the projection screen, and
a floating control bar:
7. When done with your presentation, click 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
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EPSON PowerLite 7850p Projector
2. Click the Extension button. You see this screen:
The IP address appears in the Projector list and a
searching icon displays.
Click here
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.
3. Click Use IP connect mode, then click OK. You see this
screen:
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.
Managing Projectors from a Remote
Computer
4. Click IP connection. You see this screen:
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,™ to manage your facility’s equipment from
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.
5. Enter the projector’s IP address and click Search.
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EPSON PowerLite 7850p Projector - 17
EPSON PowerLite 7850p Projector
❏ 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.
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.)
Increase or
decrease
the value
Note: Your computer must be running Microsoft Windows XP,
2000, Me or 98.
Setting Up the Projector on a Wired Network
Select the part of the
address to change
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.
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.
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.
6. When you’re done making all necessary changes, press ESC
to exit the menu system.
2. Turn on the projector.
Opening and Closing EMP Monitor
3. Press the Menu button on the remote control and select
Network from the Advanced2 menu.
Video
Brightness Control : High
Audio
Effect
Projector ID
Network
Setting
COM Port
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:
Low
:1
Set
Select
Network
Set
Advanced1
: RS-232C USB
Auto setup
: ON OFF
BNC Sync Termination : ON OFF
Advanced2
Reset
User's Logo
To start EMP Monitor, click Start > Programs or All
Programs > EPSON Projector > EMP Monitor.
Execute
About
Reset All
Click here to start EMP Monitor
[
]: Select [
]: Enter
[Menu]: Exit
To close EMP Monitor, right-click the program icon shown
above, then select Exit.
4. If your network assigns addresses automatically, turn on
DHCP.
If your network does not assign addresses automatically,
turn off DHCP and enter the projector’s IP Address,
Subnet Mask, Gateway Address, and MAC Address, as
needed.
❏ To enter numbers using the remote control, press the
Num button until it lights, then use the numeric
keypad.
Zero
Num button
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EPSON PowerLite 7850p Projector
Registering Projectors in EMP Monitor
You see this screen listing all registered projectors:
Before you can monitor a projector, you have to register it.
Follow these steps:
1. Open EMP Monitor. You see this screen:
Click here
Note: To delete a projector from the list, highlight the
projector name, and click Delete.
5. Click Close. You see the status of each of your registered
projectors on the main EMP Monitor screen:
2. Click Register projector. You see this screen:
Click here
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.
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.
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
Status icon
4. Select each projector you want to add by clicking its name
and clicking Add. When you’re done, click Close.
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 Network ON as the
Standby Mode setting in the projector’s Advanced1 menu. You
can monitor up to 64 projectors.
For detailed status information, select the projector and click
View details.
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EPSON PowerLite 7850p Projector - 19
EPSON PowerLite 7850p Projector
Controlling Your Projectors
The following tables explain the status, video source, and error
icons.
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.
Status icons
(green)
Projecting; no problems
(dark)
Turned off; no problems
Control buttons
(green)
Projecting; problems detected
(dark)
Turned off; problems detected
Network error (for example, not connected to
network or power cable disconnected).
You may also see this error if Network OFF
is selected in Standby Mode.
Video source icons
Computer
Note: To turn on a projector when it’s in standby mode (plugged in
but not projecting), first select Network ON as the Standby
Mode setting in the projector’s Advanced1 menu.
BNC
Configuring the Monitoring Interval
S-Video
If you need to have the most current status information about
your projectors, click the Refresh button on the EMP
Monitor screen.
Video
You can also select how often EMP Monitor checks the
projector status:
DVI
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
Note: If you want EMP Monitor to run whenever you start
your computer, click Add to Startup.
Fan error
2. Select the desired update interval and click OK.
Sensor error
Internal problem
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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.
Light
Description and solution
Both the P power
light and
temperature
lights are flashing
orange.
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.
Both the P power
light and
temperature
lights are red.
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.
Note: If a projector develops a critical problem, it may not be
possible for it to report the error.
If it still overheats, check that the air filter
isn’t clogged. Clean or replace it as
described on page 22.
Projector Status Lights
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.
s
Lamp light
Temperature light
Warning: Except for replacing the lamp or
cleaning and replacing the air filters, do not
attempt to service the projector yourself.
Power light
Description and solution
All lights are off.
Make sure the power cord is connected
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 P power light
is orange.
The projector is in sleep mode. Press the
P Power button to turn it on.
The P power light
is flashing green.
The projector is warming up. Wait for the
image to appear.
The P power light
is green.
The projector is operating normally.
The P power light
is flashing orange.
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.
There is a problem with a fan or
temperature sensor. Unplug the power
cord and contact EPSON for help.
Lamp light is
flashing orange.
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 lights on top of the projector indicate the projector’s
status and let you know when a problem occurs.
Light
P Power light is
red; temperature
light is flashing red.
P Power light is
red;
lamp light is
flashing red
The lamp has burned out. Replace it as
described on page 22.
All lights are red.
The projector has an internal problem.
Unplug the power cord and contact EPSON
for help.
If these lights come on after replacing the
lamp, make sure the lamp is fully inserted
and the lamp cover is closed.
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
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.
Cleaning the Projector
Before you clean the case, first turn off the projector and
unplug the power cord.
Slide the filter
up here . . .
❏ 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
. . . and here
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.
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.
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).
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).
Warning: 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
7. Loosen the two screws holding the lamp in place. (You
don’t need to remove them.)
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
8. Grasp the wire handle as shown and pull the lamp straight
out.
. . . 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.
9. Gently insert the new lamp.
Insert the screwdriver here
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.)
1
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 About, then
press Enter.
6/03
EPSON PowerLite 7850p Projector - 23
EPSON PowerLite 7850p Projector
You see this screen:
Video
Lamp
Audio
Reset Lamp Timer
Effect
Setting
Video Source
: Computer1
Input Signal
: Analog-RGB
User's Logo
Frequency
: H ---.---kHz
V ---.---Hz
SYNC Polarity
: H -----V ------
SYNC Mode
Resolution
: -----: ----x ----
Refresh Rate
: ---.-- Hz
Advanced1
Advanced2
About
Reset All
[
Optional Accessories
]: Select [
: 1400H
Execute
]: Enter
Lamp usage
[Menu]: Exit
Note: The lamp usage timer shows 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 Yes, then press Enter.
5. When you’re finished, press 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).
Part
number
Replacement lamp (includes air filters)
V13H010L22
Air filter replacement
V13H134A01
Carrying cases:
ATA molded hardshell case
ATA shipping case
ELPKS48
ELPKS46
Ceiling mount
Suspension adapter
False ceiling plate
ELPMB40
ELPMBAPL
ELPMBFCP
Middle Throw Zoom Lens
Long Throw Zoom Lens
V12H004M03
V12H004L05
Kensington® security lock
ELPSL01
Portable projection screens:
50-inch portable screen
60-inch portable pop-up screen
80-inch portable pop-up screen
ELPSC06
ELPSC07
ELPSC08
Macintosh adapter set (includes monitor adapter
and desktop adapter)
ELPAP01
Remote control cable set
V12H005C28
DVI to DVI digital video cable, 10 ft.
DVI to DFP digital video cable, 10 ft.
V12H005C20
V12H005C21
Distribution amplifier
ELPDA01
S-video cable
ELPSV01
High resolution document imager
High resolution document camera
ELPDC02
V12H064020
You can purchase these accessories from your dealer, by calling
EPSON at (800) 873-7766, or by visiting the EPSON Store SM
at www.epsonstore.com (U.S. sales only). In Canada, please
call (800) 463-7766 for dealer referral.
❏ 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.
Related Documentation
❏ 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.)
Note: EPSON shall not be liable for any damages incurred
during transportation.
24 - EPSON PowerLite 7850p Projector
Product
6/03
CPD-16397
EPSON PowerLite 7850p User’s Guide
CPD-16396
EPSON PowerLite 7850p Quick Setup
sheet
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