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Epson PowerLite 835p
Air exhaust vent
Foot release lever
Adjustable foot
Lens cover
Control panel
Power button
Remote control receiver
Air filter
Handle
Type B
USB port
RS-232 serial port
Type A
USB port
Type II
PCMCIA
Card slot Ethernet port
Remote control receiver
Security lock
AC power inlet
Audio
Out port
Monitor
Out port
Video port and related
Audio ports
Computer2/
Component port and related
Audio port
S-Video port and related Audio ports
Rear adjustable foot
Computer 1/
Component port and related
Audio port
Remote port
Projector Specifications
General
Type of display Poly-silicon Thin Film Transistor
(TFT), active matrix
Size of LCD panels Diagonal: 0.8 inch (20.3 mm)
Resolution 1024 × 768 pixels (XGA, native format)
Color reproduction 24 bit, 16.8 million colors
Brightness (ANSI) 3000 lumens in high brightness mode
2200 lumens in low brightness mode
Contrast ratio
Image size
600:1
30 to 300 inches
Projection distance 2.8 to 48.3 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
Noise level
1:1.6
28 dB in low brightness mode or
34 dB in high brightness mode
Keystone correction Automatic (vertical only); manual adjustment capability ±45° (vertical),
±25° (horizontal)
Projection Lamp
Type UHE (Ultra High Efficiency)
Power consumption 200 W
Lamp life About 2000 hours (when Brightness
Control is set to High ) and about 3000 hours (when Brightness Control is set to Low )
Part number V13H010L31
Remote Control
Range 33 feet (10 meters)
Batteries (2) Alkaline AA
Mouse Compatibility
Supports USB
Dimensions
Height
Width
Depth
Weight
4.6 inches (117 mm), feet retracted
14.4 inches (365 mm)
11.0 inches (280 mm)
10.4 lb (4.7 kg)
Electrical
Rated frequency
Power supply
50 to 60 Hz AC
100 to 120 VAC, 3.6 A
200 to 240 VAC, 1.6 A
Power consumption Operating: 310 W
Standby: 1.5 W with Network OFF
47 W with Network ON
Environmental
Temperature Operating: 41 to 95 °F (5 to 35 °C)
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Epson PowerLite 835p
Humidity
Storage: 14 to 140 °F (–10 to 60 °C)
Operating: 20 to 80% RH, non-condensing
Storage: 10 to 90% RH, non-condensing
Safety
United States
Canada
CE Marking
FCC 47CFR Part 15B 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
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
NTSC
NTSC 4:43
PAL
N-PAL
M-PAL
PAL—60
SECAM
HDTV (720p)
HDTV (1080i)
SDTV (480i)
SDTV (480p)
SDTV (625i)
SDTV (625p)
Refresh rate (Hz)
60
60
50
50
60
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, Power
Macintosh iBook
®
Sun
®
®
series, PowerBook
®
computers, many iMac
®
and
series systems, and high-end workstations such as the
SPARCstation.
™
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 × 768).
Mode
VGA EGA
VGA—60
VESA—72
VESA—75
VESA—85
SVGA—56
SVGA—60
SVGA—72
SVGA—75
SVGA—85
SVGA—120
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
Refresh rate (Hz)
70
60
70
75
85
100
120
70
75
85
100
60
72
75
85
56
60
72
75
85
120
60
75
85
60
75
85
60
65
70
75
80
85
67
75
75
75
Resolution
640
×
350
*
640
×
480
*
640
×
480
*
*
640
×
480
640
×
480
*
800
×
600
*
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
*
1280
×
1024
*
1280
×
1024
*
1280
×
1024
*
1600
×
1200
*
1600
×
1200
*
1600
×
1200
*
1600
×
1200
*
1600
×
1200
*
1600
×
1200
*
640
×
480
*
832
×
624
*
1024
×
768
1152
×
870
*
* The image is resized using Epson’s SizeWise technology.
2 Epson PowerLite 835p 10/04
Epson PowerLite 835p
Positioning the Projector
Follow these guidelines:
❏ Place the projector on a sturdy, level surface between
2.8 and 48.3 feet from the screen. Image size generally increases with distance, but may vary depending on the position of the zoom ring and other settings.
❏ Maximum diagonal size =
(projection distance[inches] x 2.54 x 0.32827 + 1.6767)
❏ Minimum diagonal size =
(projection distance[inches] x 2.54 x 0.203 + 1.077)
To determine the projection distance (in inches) when you know the diagonal size of the screen image:
❏ Maximum projection distance =
((diagonal size[inches] x 4.92611) - 5.30542) / 2.54
❏ Minimum projection distance =
((diagonal size[inches] x 3.04627) - 5.10769) / 2.54
29.8 to 48.3 ft 5.8 to 9.5 ft 2.8 to 4.7 ft Distance from screen
❏ 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 Keystone
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 adjusting the zoom, 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.
To determine the diagonal size of an image (in inches) when you know the projection distance:
Connecting the Projector
You can connect the projector to two 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.
Note: The preview feature lets you see all the sources at a glance,
so you can easily switch to the one you want. 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
Output signal
Analog RGB video
DVI
Required cable
VGA cable
VGA-to-BNC cable
DVI to VGA cable
Video equipment
Output signal
Composite video
S-video
Component video
RGB video
Required cable
RCA video cable
S-video cable
Component to VGA cable
VGA cable
Note that the projector’s Computer 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.
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Epson PowerLite 835p
Playing Sound Through the Projector
You can play sound through the projector’s speaker system or 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 one of the Computer/Component ports, use a stereo minijack cable. Connect one end to the correct Audio port and the other end to the audio-output connector on your equipment.
❏ If you have a computer or video equipment connected to the Video or S-Video port, use an RCA-style audio cable.
Connect one end to the correct port and the other end to the audio-output connector on your equipment.
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” below).
Turning On the Projector
1. Remove the lens cap.
2. Plug in the projector.
3. Wait a few seconds until the projector’s Power light stops flashing and turns orange.
4. Press the red P Power button on top of the projector or on the remote control.
Power button
Use with Computer or
Component connection
Use with
Video connection
Use with
S-Video 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.
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
®
98, 2000, Me, or XP, Macintosh OS 8.6 to 9.x, or Macintosh
OS X 10.2 or later. See the User’s Guide for more information.
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 Power light flashes green as it warms up, and an image begins to appear after about 30 seconds.
When the Power light stops flashing and remains green, the projector is ready for use.
Warning: 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 telling you that your computer has found a plug-and-play monitor; if so, click Cancel .
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:
❏ You can press the Source Search button on the projector’s control panel or the remote to find the connected equipment automatically.
4 Epson PowerLite 835p 10/04
Epson PowerLite 835p
❏ The projector’s control panel has two Source buttons.
Use the Computer/Component button to switch between EasyMP,
™ and equipment connected to the
Computer ports.
Use the Video/S-Video button to switch between equipment connected to the Video and
S-Video ports.
❏ The remote control has five
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/Component 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.
.
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,
Preview as 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
DVI
BNC Video S-Video
Note: Movies are displayed as still images on the preview screen.
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.
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.
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.
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Epson PowerLite 835p
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 System Preferences , then select Displays .
2. Click the Arrangement or Arrange tab.
If the Arrange option isn’t available, do the following:
1. Click the Monitor icon if necessary.
Click here
Select a
Simulscan resolution
2. Select a Simulscan resolution as shown. (Allow a few seconds for the projector to sync up.)
Make sure
Mirror Displays is checked
3. Make sure the Mirror Displays checkbox is selected.
If you’re using a laptop with Macintosh OS 9.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 Control Panels , then click
Monitors or Monitors and Sound .
2. Click the Arrange icon.
Click here
Adjusting the Image
Once you see your image, you may need to make certain adjustments.
Using Quick Setup
You can use the Quick Setup button on the projector or the remote control to quickly and automatically set up the projector’s focus, zoom, and screen shape, as well as the Wall
Shot setting. All you need to do is position your projector and press Quick Setup . Make sure you enable Quick Setup for all of the settings you want to use, as described in the User’s
Guide.
Drag one monitor icon on top of the other
3. Drag one monitor icon on top of the other.
Quick Setup
Focusing and Zooming Your Image
Use the Focus buttons on the projector or remote to sharpen the image.
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Epson PowerLite 835p
Use the Zoom buttons on the projector or remote to reduce or enlarge the image. Press the W button on the projector or the top zoom button on the remote to increase the size, or the
T button on the projector or bottom zoom button on the remote to decrease it.
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 45° up or down), the projector’s automatic keystone correction function detects and corrects vertical keystone distortion.
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 up on the blue foot release lever and lift the front of the projector.
2. Once the image is positioned where you want it, release the lever to lock the foot in position.
3. If necessary, you can fine-tune the height by turning the projector’s rear feet.
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 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 buttons on the projector’s control panel or the Keystone menu (see the next section).
❏ If the image has no parallel sides, you can adjust its shape using Quick Corner ™ (see
Keystone correction
Keystone correction
You cannot use both keystone correction and Quick Corner at the same time.
Quick Corner correction
Using Keystone Correction
To adjust your image when it is wider on one side, do the following:
❏ Look at the shapes of the icons on the projector’s four keystone buttons. Press the button whose icon is the opposite of the shape of your screen image. Continue pressing the button until you are satisfied with the shape of the image.
Projector foot
Raising the projector causes the image to distort or
“keystone,” but you can manually correct the shape as described in the next section.
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Epson PowerLite 835p
Note: The image will be slightly smaller after adjusting. If it’s important to maintain the correct aspect ratio, use the menu system to perform keystone correction, then use the remote’s
Resize button to adjust the aspect ratio.
Keystone buttons
❏ Press the Menu button on the remote control, select the
Setting menu, and press Enter . From the Setting menu, select Keystone and press Enter , select H/V Keystone and press Enter , then select Horiz./Vert./Height 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.
Using Quick Corner
If your projected image has no parallel sides, you can even up the sides using Quick Corner. Follow these steps:
1. Press the Menu button on the remote control (or on the projector’s control panel).
2. Select the Setting menu and press Enter .
Note: If you are already using Keystone settings, you see a warning message. To disable keystone settings and use Quick
Corner instead, press Enter ; to keep your settings, press Esc .
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.
Note: If you are not satisfied with the corrections made, press the Esc button for one second to reset the screen to its original shape.
7. Repeat steps 5 and 6 as needed to adjust any remaining
corners.
8. When you’re done, press the Esc button on the remote control or projector’s control panel 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’re connected to a computer and the image doesn’t look right, press the Auto button on the remote control.
Note: You must be projecting an image for this button to have any effect. The Auto button works only with computer images.
8 Epson PowerLite 835p 10/04
This automatically resets the projector’s tracking, sync, resolution, and position settings.
Auto button
If vertical bands appear in the projected image and pressing 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.
Epson PowerLite 835p
Shutting Down the Projector
When you’ve finished using the projector, follow the recommended procedure to shut it down. This extends the life of the lamp and protects the projector from possible overheating.
Note: You can set the projector to automatically turn off the projector lamp and enter “sleep mode” when it has not received any signals for 30 minutes. This conserves electricity, cools the projector, and extends the life of the lamp. To start projecting
again, press the P Power button. If you are done using the projector, unplug the power cord. To turn off sleep (standby)
mode, see the User’s Guide.
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.
Power button
You see a confirmation message. (If you don’t want to turn the projector off, press any other button.)
If the image appears fuzzy or flickers and pressing the Auto button doesn’t correct the problem, hold down the Shift button while pressing either the Sync + or Sync button on the projector.
3. Press the P Power button again. The projector beeps twice, the lamp is turned off, and the Power light flashes orange for about 30 seconds as the projector cools down.
After the projector has cooled, the orange light stays on and the exhaust fan shuts off.
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.
5. Replace the lens cap and unplug the power cord.
Caution: Turn the projector off when not in use. Continuous
24-hour-a-day use may reduce the projector’s overall life.
6. If you’re using a remote control, set its ON/OFF switch to
OFF .
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Epson PowerLite 835p
Using the Direct Power On Function
The Direct Power On function enables fast and easy setup and shut down. This feature is convenient for ceiling-mounted projectors because you can simply flip a switch connected to the power outlet for the projector to turn it on or off. For desktop or table-top use, you can quickly unplug the projector immediately without having to wait for it to cool down. Then you can pack up the projector and go.
Follow these steps to enable Direct Power On:
1. Press the Menu button on the remote control and select the
Extended menu.
2. Choose Operation and press Enter .
3. Choose Direct Power ON and press Enter .
4. Highlight
5. Press Esc
On
or
and press
Menu
Enter
to exit.
Using the Remote Control
The remote control lets you access your projector’s features from up to 30 feet away, and from ± 25° above or below and ± 45° left or right of the projector’s infrared receiver.
.
Turn on remote control
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, or other equipment emitting infrared energy is present (such as a radiant room heater).
Remote Comtrol Functions
Button
E-Zoom
Page
Power
P in P
Color
Mode
A/V Mute
Resize
Freeze
Function
Zooms in on a portion of your image.
Advances to the next or previous image in a slideshow.
Turns the projector on or off.
Displays a picture-in-picture image.
Adjusts the vividness of the image color. You can select from several settings and save a different setting for each computer or video source.
Turns off audio and video and displays the black, blue, or user logo background. Press it again to turn audio and video back on.
Adjusts how an image fits into the display area.
Halts action. Press again to resume action.
Illuminates the buttons on the remote control.
Pointer
Enter
Esc
Navigates menus or controls the mouse pointer when the projector is connected to a computer with the mouse cable.
Activates the pointer tool. To use a different style pointer, continue pressing the Pointer button to select the desired style.
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.
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.
Displays the on-screen menu system.
Menu
Help
Source buttons
Displays the on-screen help system.
Switch to the equipment connected to the corresponding port, or to EasyMP if you are projecting wirelessly or using a memory card. Press Search to automatically find a source image from a connected device.
Previews connected sources (see page 5).
Preview
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.
Focus
Zoom
Quick
Setup
Volume
Num
ID
Focuses the projected image.
Zooms the projected image.
Automatically adjusts the image. Adjustments are pre-selected in the projector menus.
Increases or decreases the sound.
Turns on the numeric keypad. (Press this key until it lights.)
Sets the remote control ID
10 Epson PowerLite 835p 10/04
Epson PowerLite 835p
Using the Control Panel
Control Panel Button Functions
Button
Power
Function
Turns the projector on or off.
Quick Setup Automatically adjusts the image. Adjustments are pre-selected in the projector menus.
Source
Search
Zoom
Focus
Help
Computer/
Component
Automatically finds a source image from a connected device.
Zooms the projected image.
Focuses the projected image.
Displays the on-screen help.
Switches the source signal between EasyMP and equipment connected to the Computer/Component ports.
Video/
S-Video
Menu
Esc
Enter
Tracking buttons
Sync buttons
Shift
A/V Mute
Resize
Keystone buttons
Volume
Switches the source signal among equipment connected to the Video or S-Video ports.
Displays the on-screen menu system.
Pressing Esc while viewing a menu displays the previous menu.
Use Enter button to select an option when the menu or help system is active.
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.
Let you 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.
Press and hold to use the Tracking and Sync buttons.
Turns off audio and video and displays the black, blue, or user logo background. Press it again to turn audio and video back on.
Adjusts how an image fits into the display area.
Corrects 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.)
Increases or decreases the sound.
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
®
Windows XP,
2000, Me or 98, or Macintosh
®
OS X 10.2.4 or later.
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 802.11g card that came with your projector. Insert it with the label facing upward.
Note: Only the EPSON 802.11g card is guaranteed to work.
Other cards may not be compatible.
Once the card is inserted, you see one of these screens, depending on the currently selected mode:
Note: If you see a message asking you to insert a LAN or memory card, check to make sure your 802.11g card is properly inserted.
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Epson PowerLite 835p
Ad Hoc mode
You can use NS Connection to connect to the projector and send images wirelessly in two modes: Ad Hoc mode or Access
Point mode.
❏ Ad Hoc mode (computer-to-computer mode) lets you connect just one computer to the projector at a time; it’s easy to set up, and the only equipment you need is a computer with a wireless (802.11g or 802.11b) network card or adapter, or a Macintosh with an AirPort
®
or
AirPort Extreme card.
❏ Access Point mode (infrastructure mode) lets multiple computers access the projector at the same time and easily trade off control over the projector. To use Access Point mode, you need a wireless (802.11g or 802.11b) access point or an AirPort Extreme (or AirPort) base station, and one or more computers with wireless network cards or adapters.
Follow the instructions below for the mode you want to use.
Using Ad Hoc Mode
To use Ad Hoc (computer-to-computer) mode, adjust your projector and wireless card or adapter settings as described in this section.
Configuring the Projector
Switch the projector to EasyMP mode and insert the Epson
802.11g card. You see this screen:
Access Point mode
3. If you’ve already set up your computer and projector for the mode you want to use—Ad Hoc mode (also called computer-to-computer mode) or Access Point mode (also
called infrastructure mode)—skip to “Projecting
Otherwise, continue with the next section.
Configuring the Connection
Note: Make sure you’ve installed the NS Connection software.
To connect to the projector over a wireless network, your computer must be running Windows 98, Me, 2000, or XP. Your
Macintosh must be running OS X 10.2.4 or later. See page 183 for complete system requirements for projecting wirelessly.
Access Point mode (infrastructure mode) is required to achieve transfer speeds up to 54MB/sec on an 802.11g network. Ad Hoc mode (computer-to-computer mode) limits network connections to
11MB/sec. This is a standard specification of 802.11g networking.
Config button
4. To select
Config
, press the
Enter
button on the remote control. You see the following screen:
Easy connect mode
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Epson PowerLite 835p
Make sure Easy connect mode is selected, as shown above.
If not, use the pointer button on the remote control to highlight the checkbox next to Easy connect mode , then press Enter to select it.
5. Make sure the projector has a unique name, so you can identify it when connecting to it from your computer.
If you need to rename it, highlight the Projector name text box then press Enter . The outline of the text box turns yellow to indicate you are in input mode. Press the pointer button up to select individual letters in alphabetical order, or down to select letters in reverse order; then press the pointer button to the right to move to the next character position. When you’re done typing the new name, press Enter .
Note: If you want to enter a blank space, use the space character that comes before the capital letter A.
If you want to enter numbers, press the Num button on the remote control. The button lights up to indicate that the numeric keypad mode is active. Press the Num button again to exit numeric keypad mode.
6. If your network card supports an SSID or ESSID name, highlight the ESSID text box, press Enter , and enter a name. When you’re done, press Enter . Note that the
ESSID is case-sensitive (if you enter the name in uppercase on the projector, you must type it the same way on the computer connecting to the projector).
7. If you want to create a password for remote access to the projector, highlight the Password for WEB control checkbox, press Enter , and enter a password of up to 8 alphanumeric characters. When you’re done, press Enter .
8. If you want to set up a security keyword so that only people who are in the same room as the projector can access it, turn Projector keyword on. Then when you want to connect to the projector, it displays a randomized four-digit number or “keyword” on the screen. When prompted by
NS Connection, you must enter the keyword on your computer to connect.
Note: The projector keyword changes each time you turn the projector off and then on again, or remove and reinsert the
802.11g card. Check the keyword on the EasyMP Network screen whenever you start EasyMP and enter that keyword on your computer. You can’t connect using a previous keyword.
It is recommended that the keyword setting is changed periodically.
9. When you’re done making these settings, highlight the OK button at the top of the screen (you can either press the Esc button on the remote control or use the pointer button to highlight it), then press Enter . Highlight the OK button again and press Enter to return to the main EasyMP
Network Screen.
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.
1. Make sure you’ve installed your 802.11g wireless card in your projector.
2. Windows: Select EMP NS Connection from the Start menu.
Macintosh OS X: Double-click the EMP NS Connection icon in your Applications folder.
3. The first time you start NS Connection, you may see a dialog box asking you to select your network. Select the IP address for your computer’s network 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 or
AirPort base station uses DHCP (Distribute IP addresses setting is enabled for AirPort), sometimes it takes a minute for the server to pick up the IP address.
Once you’ve selected the IP address for your network adapter, you won’t see the Switch network dialog box when you start
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Epson PowerLite 835p
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 on the extension dialog box.
You see the screen below. (If you have previously started
NS Connection, this is the first screen you see.)
Select projector
If the connection is working properly, you see your projector listed. If you have additional Epson projectors on the network, they are also listed, along with their status.
The color of the 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
If you don’t see your projector, check the following:
❏ Make sure your wireless signal is strong enough to establish a connection:
If you have a Macintosh, check the AirPort icon on the
Macintosh menu bar.
For Windows, see the documentation for your access point or computer network card.
❏ Make sure you’re trying to connect to the right network. In
Windows, verify that you’ve enabled your computer’s connection to the access point or that your wireless card or adapter is enabled, and that its SSID matches the projector’s ESSID. In Macintosh, check the AirPort status menu (click the AirPort icon on your menu bar) to make sure AirPort is turned on and the projector’s ESSID or your
AirPort network is selected.
❏ Make sure you aren’t projecting one of the EasyMP configuration screens. (You should see a message that the projector is ready to connect.) If you have to exit a configuration screen, restart NS Connection.
❏ Make sure the ESSID for your projector matches the SSID for your wireless card, adapter, or access point. If you have an AirPort base station, make sure the projector’s ESSID matches the AirPort network name. Remember that the
ESSID is case-sensitive.
Note: The AirPort network name may be different than the
AirPort base station name. To check the network name, start the AirPort Admin utility, select your base station, and click
Configure . Then click Show All Settings . The network name appears on the AirPort tab.
❏ Check the IP address for both your projector and your wireless card, adapter, access point, or AirPort base station.
The first three segments of the IP address should be identical. The last segment of the projector’s IP address should be close, but not identical, to the last segment of the
IP address for your wireless interface, access point, or base station.
❏ Restart your computer and start NS Connection again.
4. 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 already being used by another person, you can still connect to it; doing so automatically disconnects the other user.
Note: If you want your presentation encrypted, click
Extension and select Use encrypted communication . This step enhances security but decreases the data transmission speed.
5. If you set up the projector to prompt you for a keyword before connecting, you see a screen like this one:
Type in the four-digit number displayed on the EasyMP
Network screen and click OK .
6. Once the connection is established, you see your computer’s image transmitted to the screen, and a floating control bar on your computer desktop:
Enter keyword
7. If necessary, you can drag the control bar out of the way on your screen.
14 Epson PowerLite 835p 10/04
8. When you’re done with your presentation, click
Disconnect on the control bar.
Using the Control Bar
From the control bar, you can access these NS Connection features:
Provides help for NS Connection.
Lists projectors and specifies which ones are in use.
Lets you access the projector’s menu system from an HTML browser window.
Keeps the projected image on screen, even if the image on your computer changes.
Turns off the image and sound.
Zooms in on a part of your image.
Changes the brightness, contrast, and color mode.
Switches between the Video and
S-Video ports.
Switches between signals from the Computer ports.
Clicking one of the buttons on the control bar may cause a submenu to appear above the control bar. For example, clicking the button displays the following submenu:
Click to close
Epson PowerLite 835p
❏ Contrast
Increase or decrease image contrast.
❏ Color Mode
Lets you select from five preset modes to adjust the color and brightness for specific environments: sRGB for computer displays (the default when projecting from a computer with analog video), Dynamic for presentations in bright rooms, Presentation for presentations in dark rooms, Theatre for optimizing movie images (the default for video display), and Living Room for video games.
When you’re done, click the arrow in the upper right corner to close the submenu.
Connecting in IP Connect Mode
You can establish a connection manually using IP Connect
Mode even if your projector and computer are on a different subnet (Access Point mode only) or connecting over different routers.
Note: Depending on your network, your projector and computer may connect over different routers even if they are in the same room. Try this method if you are unable to connect automatically.
1. Start NS Connection. You see this screen:
Click here
If you’re using more than one projector, you can use the
Projector drop-down menu to select the projector on which you want to make any of the following changes:
❏
Brightness
Increase or decrease brightness.
❏
Keystone
Click + to narrow the top edge of the screen, or - to narrow the bottom edge (this option functions like the Sync buttons on the projector’s control panel).
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Epson PowerLite 835p
2. Click the Extension button. You see this screen:
Select this box
4. Click IP connection . You see this screen:
3. Select Use IP connect mode and click OK . You see this screen:
Click here
Enter the IP address and click Search
5. Enter the projector’s IP address and click Search .
The IP address appears in the Projector list and a searching icon appears:
16 Epson PowerLite 835p 10/04
This icon appears if the search fails to find the projector
This icon indicates search is in progress
Note: You can add up to 16 projectors to the list. If you add more, NS Connection begins to delete projectors from the list, starting with the first projector added.
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 on your projector to check the projector’s IP address, then repeat this step.
Epson PowerLite 835p
6. Click the projector you want to connect to and 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 .
The computer’s image is transmitted to the projector and appears on the screen.
Switching Between Users
To connect to the projector while another person is already using it (Access Point mode only), follow these steps.
1. Start NS Connection. You see this screen:
Select projector
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.
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.
Caution: Do not use wax, alcohol, benzene, paint thinner, or other chemical detergents. These can damage the case.
2. Select the projector you want to use and click Connect .
You see this message:
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.
Note: To order replacement air filters, request part number
V13H134A07.
Follow these steps:
1. Turn off the projector. Wait for the Power light to stop flashing, then unplug the power cord.
2. To clean the intake vents, use 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. Click Yes to connect.
The other user is automatically disconnected and notified about the interruption:
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Epson PowerLite 835p
3. Let the projector cool for at least an hour (if it has been on).
The lamp is extremely hot immediately after use.
4. Turn the projector over and remove the air filters at the side and bottom of the projector.
If the dirt is difficult to remove or a filter is broken, replace the filters as described in the next section. Contact your dealer, by calling Epson at (800) 873-7766, or by visiting the
Canada, please call (800) 463-7766 for dealer referral.
5. Insert the two new air filters. They should click into place.
6. Turn the projector back over.
7. Loosen the screw holding the lamp cover in place (you don’t need to remove it). Then remove the lamp cover.
Replacing the Lamp and Air Filters
The life span of the projection lamp is about 2000 hours if
Brightness Control in the Setting menu is set to High (default), and 3000 hours if Brightness Control is set to Low .
Note: When you get a replacement lamp for your projector, you should replace the filters.
It is time to replace the lamp when:
❏ The projected image gets darker or starts to deteriorate.
❏ The message Replace the lamp appears on the screen when the lamp comes on and the lamp warning light flashes orange. To maintain projector brightness and image quality, replace the lamp as soon as possible.
❏ The lamp warning light flashes 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
V13H010L31. In Canada, please call (800) 463-7766 for dealer referral.
Follow these steps to replace the lamp and air filters:
1. Turn off the projector.
2. When the Power light stops flashing, unplug the power cord.
WARNING: Let the lamp cool fully before replacing it. It is extremely hot immediately after use.
In the unlikely event that the lamp has broken, small glass fragments may be present and should be removed carefully to avoid injury.
8. Loosen the two screws holding the lamp in place (you don’t need to remove them).
Loosen, but don’t remove these screws
9. Grasp the handles as shown and pull the lamp straight out.
18 Epson PowerLite 835p 10/04
10. Gently insert the new lamp. (If it doesn’t fit easily, make sure it is facing the right way.)
11. Once the lamp is fully inserted, tighten its screws and replace the cover, then tighten the cover screw. (The projector won’t turn on if the lamp cover is loose.)
12. Reset the lamp timer as described below.
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the projector’s menus.
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 Reset , then press Enter .
You see this screen:
Epson PowerLite 835p
❏ When transporting the projector a long distance, first place it in a hard-shell shipping case, then pack it in a firm box with cushioning around the case. (An optional case is available from Epson.)
Note: Epson shall not be liable for any damages incurred during transportation.
3. Select Lamp Hours Reset and press Enter . You see this prompt:
4. Select Yes and 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 damage:
❏ 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.
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Epson PowerLite 835p
Optional Accessories
To enhance your use of the projector, Epson provides the following optional accessories:
Product
Replacement lamp
Air filter replacement set
ATA molded hardshell case
Samsonite
®
wheeled soft case
Ceiling mount
Suspension adapter
False ceiling plate
Security bracket/cabling for gyro lock mounts
Adjustable ceiling channel
Kensington
®
security lock
Projection screens:
50-inch portable screen
60-inch portable pop-up screen
80-inch portable pop-up screen
83.6-inch hanging pull-down screen
Macintosh adapter set
Component video cable
S-Video cable
Distribution amplifier
Image Presentation Camera
High resolution document camera
Part number
V13H010L31
V13H134A07
ELPKS35
ELPKS52
ELPMB36
ELPMBAPL
ELPMBFCP
ELPMBSEC
ELPMBACC
ELPSL01
ELPSC06
ELPSC07
ELPSC08
ELPSC09
ELPAP01
ELPKC19
ELPSV01
ELPDA01
V12H162020
V12H064020
You can purchase these accessories from your dealer, by calling www.epsonstore.com (U.S. sales only). In Canada, please call
(800) 463-7766 for dealer referral.
Related Documentation
CPD-18220
CPD-18221
Epson PowerLite 835p User’s Guide
Epson PowerLite 835p Quick Setup sheet
20 Epson PowerLite 835p 10/04
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Table of contents
- 1 Projector Specifications
- 1 General
- 1 Projection Lamp
- 1 Remote Control
- 1 Mouse Compatibility
- 1 Dimensions
- 1 Electrical
- 1 Environmental
- 2 Compatible Video Formats
- 2 Compatible Computer Display Formats
- 3 Positioning the Projector
- 3 Calculating Image Size and Projection Distance
- 3 Connecting the Projector
- 3 Types of Connections
- 4 Playing Sound Through the Projector
- 4 Using the Remote Control as a Wireless Mouse
- 4 Starting Up the Projector
- 4 Turning On the Projector
- 4 Selecting the Image Source
- 5 Previewing Image Sources
- 5 What To Do If You See a Blank Screen
- 6 Adjusting the Image
- 6 Using Quick Setup
- 6 Focusing and Zooming Your Image
- 7 Adjusting the Height of Your Image
- 7 Adjusting the Image Shape
- 7 Using Keystone Correction
- 8 Using Quick Corner
- 8 Correcting Computer Images
- 9 Shutting Down the Projector
- 10 Using the Direct Power On Function
- 10 Using the Remote Control
- 11 Using the Control Panel
- 11 Presenting Over a Wireless Network
- 11 Starting EasyMP
- 12 Configuring the Connection
- 12 Using Ad Hoc Mode
- 13 Projecting Wirelessly
- 15 Using the Control Bar
- 15 Connecting in IP Connect Mode
- 17 Switching Between Users
- 17 Cleaning the Lens
- 17 Cleaning the Projector
- 17 Cleaning the Air Filters and Vents
- 18 Replacing the Lamp and Air Filters
- 19 Resetting the Lamp Timer
- 19 Transporting the Projector
- 20 Optional Accessories
- 20 Related Documentation