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:
ModeRefresh 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
ModeRefresh Rate (Hz)Resolution
VGAEGA70640 × 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 Projector6/03
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
6/03EPSON 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 signalRequired 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 signalRequired cable
Composite videoRCA video cable
S-videoS-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.
ComputerInput or BNCInput 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 Projector6/03
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.
6/03EPSON 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
VGADisplay dialog box is selected.
Arrange tab.
SystemPreferences, 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 Projector6/03
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 ringZoom 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 upProjector 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.
6/03EPSON PowerLite 7850p Projector - 7
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