Xerox Projector Dp 820 User Manual

							User Controls
26Xerox DP 820 User’s Guide
Auto Shutdown—Sets the projector lamp to automatically shut 
down if it doesn’t receive an input signal within 30 minutes.
• Press the     buttons to select this option.
ON—The lamp will automatically shut down in 30 minutes if 
it doesn’t receive a signal
OFF—The lamp will remain lit, even if no signal is received
OSD Timeout—Sets the duration the OSD menus remain on the 
screen before automatically closing if you don’t make a selection.
• Press the     buttons to increase or decrease the OSD 
Timeout duration.
Menu Position—Sets the position of the OSD menus on the 
screen.
• Press the     buttons to select the menu position as 
indicated by the icons.
OSD Transparency—Sets the amount of transparency of the OSD 
menus on the screen. As transparency increases, the image 
underneath the menus becomes more visible. At the setting of 4, 
the menus are at maximum transparency; at 16 the menus are 
opaque.
• Press the   button to increase the transparency.
• Press the   button to decrease the transparency.
Factory Reset—Resets the projector’s settings to their default 
factory settings.
• Press the     buttons to select the Factory Reset, then 
press the Menu button on the projector’s control panel or 
the   button on the remote control to confirm the reset.
Audio Menu
Vo l u m e—Adjusts the overall volume.
• Press the   button to decrease the volume.
• Press the   button to increase the volume.
Mute—Mutes the audio.
• Press the     buttons to mute the audio.
ON—The audio is muted.
OFF—The audio plays normally. 
						

							Xerox DP 820 User’s Guide27
Maintenance
Maintenance
The projector needs proper maintenance. Keep the lens clean 
because dust, dirt, or spots will project on the screen and diminish 
image quality. 
Keep the projector housing clean to maintain its appearance.
Before cleaning the lens or housing, always turn off the power first 
and unplug the power cord.
Note that only the lamp is replaceable. If any other parts need 
replacing, contact your dealer or qualified service personnel.
Warning—Never open any of the covers on the projector except 
the lamp cover. Dangerous electrical voltages inside the projector 
can cause serious injury. Do not attempt to service the projector 
yourself. Refer all servicing to qualified service personnel.
Cleaning the Lens
1. Turn off the projector and let it cool down. Make sure the lens is 
also cool.
2. Wipe the lens in a circular motion with lens cleaning paper.
Do not touch the lens with your hands.
Always keep the lens cap on the lens when the projector is not 
in use.
Cleaning the Projector
1. Turn off the projector and let it cool down.
2. Unplug the power cord.
3. Using a soft cloth, clean the projector’s case, and then carefully 
remove any dust blocking the projector’s ventilation vents.
If dirt and stains are not easily removed, dampen the cloth with 
water, or water and a neutral detergent.
4. Wipe dry with a soft, dry cloth.
Never use abrasive cleanser, detergents, or cleaning solvent 
on the case or the vents. Never use benzene, thinners, or 
chemical sprays.
Do not try to clean dust from the inside the projector’s case. 
						

							Maintenance
28Xerox DP 820 User’s Guide
Changing the Lamp
The projector automatically monitors the lamp life. As the lamp 
reaches the end of its life, the image becomes darker and the color 
hues weaker. The projector’s Lamp LED turns red to let you know 
that the lamp must be changed soon before it fails completely.
When you see the red Lamp LED, please change the lamp as soon 
as possible.
Note that lamp lifetimes vary according to the operating 
environment and type of use. Lamp lifetimes are not guaranteed 
and some lamps may end their lifetimes earlier than others.
Precautions When Changing a Lamp
• The lamp module is the only user-replaceable part in the 
projector. To prevent electric shock, do not open the projector 
case.
• Always wear protective gloves and eyeglasses when fixing or 
replacing the lamp. Lamp contains mercury.
• To reduce the risk of personal injury, do not drop the lamp 
module or touch the lamp bulb at any time. The lamp module 
may explode if handled incorrectly, and may shatter and cause 
injury if dropped.
• The lamp is hot! If you touch the lamp, you may scald your 
fingers. Allow the projector to cool down at least 45 minutes 
before opening the lamp compartment or changing the lamp.
• In the event that the lamp is dropped or broken, and explodes 
or bursts, please leave the area immediately and ventilate it for 
at least 30 minutes.
• Do not operate the projector with the lamp cover removed.
• Do not attempt to reuse an old lamp. An old lamp may explode 
if reused. NOTE:To order a new replaceable lamp module, please go to 
www.xeroxprojectors.com. 
						

							Xerox DP 820 User’s Guide29
Maintenance
To Change the Lamp Module
1. Turn off the projector’s power.
2. Disconnect the power cord.
3. Let the projector lamp cool completely, at least 45 minutes.
4. Place a protective cloth beneath the projector and turn it over 
so you can access the lamp cover.
5. Remove the lamp cover screws and lift it off.
6. Remove the screws holding the lamp in place, then grasp the 
lamp handle and lift the lamp directly up and out of the 
projector.
7. Hold the new lamp by its handle and carefully slide it down into 
the projector. Make sure it properly seats in place.
8. Replace the lamp screws and screw the lamp into the projector.
9. Replace the panel cover and screw it onto the projector. Make 
sure all screws are tightened properly. 
10. Dispose of the lamp properly. Please see the section “Product 
Recycling and Disposal for USA” on page 37 for information 
about the Xerox worldwide equipment takeback and reuse/
recycle program. NOTE:Wear lint-free gloves or finger cots when changing the 
lamp.
NOTE:Handle the lamps carefully to avoid breaking or 
scratching the glass. 
						

							Maintenance
30Xerox DP 820 User’s Guide
Troubleshooting
If you try the troubleshooting procedures described in this section 
and the problem persists, you may have a malfunctioning projector. 
Refer to the technical support card that you received with your 
projector or contact the retailer where you purchased your 
projector. Also visit our web site at www.xeroxprojectors.com for 
additional technical information. 
Problem: No image appears on the screen.
Check for one of these possible problems:
•Are the cables loose or not plugged in securely? Inspect 
the cable connections. Make sure the cables are plugged in 
securely.
•Are any of the pins on the cables bent or broken? Inspect 
the pins on the cable plugs to make sure none of the pins are 
bent or broken.
•Is the projection lamp securely installed? Check that the 
projection lamp is securely installed, especially if you just 
changed it. See the section “Changing the Lamp” on page 28 
for details about the lamp installation.
•Is the power on? Check that the projector’s power switch is 
turned on and that the power cord is plugged in securely to a 
working power outlet. If you are using a power strip, make sure 
it is turned on and plugged in.
•Is the lens cap still on? Make sure you have removed the 
lens cap from the lens at the front of the projector.
•Are the Brightness and Contrast set incorrectly? Adjust the 
Brightness and Contrast until a picture appears. See “Image 
Menu” on page 20.
Problem: The screen of your Notebook or PowerBook 
computer is not displaying your presentation
If you are using a Notebook PC:
Some Notebook PCs deactivate their own screens when a second 
display device is attached. Please see the user’s manual that you 
received with your Notebook PC to reactivate its screen.
If you are using an Apple PowerBook:
1. From the Apple menu, choose Control Panels/PowerBook 
Display.
2. Turn on Video Mirroring.
3. Click the Close box. 
						

							Xerox DP 820 User’s Guide31
Maintenance
Problem: The image is flickering or otherwise unstable
Try one of these possible solutions:
• Change the Phase setting on the OSD Display menu. See 
“Display Menu” on page 23.
• Change the number of colors that your computer displays on its 
monitor. See the documentation that you received with your 
computer for the steps to change the number of colors its 
monitor can display.
Problem: Image has vertical flickering stripes.
Try one of these possible solutions:
• Change the Tracking setting on the OSD Display menu. See 
“Display Menu” on page 23.
• Reset the display mode of your computer’s graphic card to 
make it compatible with the projector. See “Preset Signals” on 
page 34 for the settings.
Problem: Image is out of focus.
Try one of these possible solutions:
• Adjust the focus ring on the projector. Turn the focus ring until 
the image comes into focus.
• Make sure the distance between the projector and the screen is 
between 1.2m and 10.0m. See “Adjusting Projection Image 
Size” on page 15 for details.
Problem: When the projector is connected to a DVD 
player, playing a film with a 16:9 aspect ratio makes the 
image looks stretched out.
Try one of these possible solutions:
• Reset your DVD player to display at a 4:3 aspect ratio. See the 
DVD player user’s guide for the steps to adjust its aspect ratio.
• Using the OSD Menus, go to the Image Menu and select a new 
Aspect Ratio. Change it to 4:3.
Problem: The colors of the projected image look different 
than the colors of the image on the computer screen.
Use the OSD Image and Video menus to adjust the colors. 
						

							Maintenance
32Xerox DP 820 User’s Guide
Problem: Image is reversed or inverted.
Use the OSD Advanced Menu to change the Rear or Ceiling option 
to display the image properly.
Problem: No sound.
Make sure the audio cables and other cables are connected 
properly.
Problem: Remote control does not work.
Check for one of these possible problems:
•Are you too far from the projector? The remote control has a 
range of about 10ft (3m) and needs to be within 20° of the 
sensor. Move closer to the projector and try again. 
•Is anything blocking the infrared sensors on the projector? 
Make sure the infrared sensors are not covered or blocked 
from receiving signals from the remote control.
•Are the batteries in the remote control dead? Replace the 
batteries in the remote control.
Problem: Lamp burns out or makes a popping sound.
When the lamp reaches its end of life, it may burn out and may 
make a loud popping sound. If this happens, do not attempt to turn 
on the projector until the lamp module has been replaced. See 
“Changing the Lamp” on page 28 to replace the lamp. 
						

							Xerox DP 820 User’s Guide33
Maintenance
Xerox DP 820 Projector Specifications
Note: Design and Specifications are subject to change without 
notice. Projection SystemSingle panel 0.55” DLP™ projector
Native Resolution48,000 dot x 1 (800 x 600 x 1)
Image Brightness1600 ANSI lumens (typical)
Uniformity80% (typical)
LensManual Zoom (1.2X)
Focal Length20.2 - 24.2mm
Contrast Ratio1500:1 (Full on/off) (typical)
Aspect Ratio1:1, 16:9, 4:3
Screen Size30 - 200 inches
Lamp200W
Projection TypeFront, Rear Ceiling
Video InputPAL, NTSC, SECAM
Input SourceComputer, HDTV, S-Video, Video
Scanning Frequency
Horizontal Frequency
Vertical Frequency
Pixel Rate31 - 79 KHz
50 - 85 Hz
108 MHz
Digital Keystone CorrectionVertical: +/- 15 degrees
Analog RGB (input signal)D-Sub connector
HDTV Display720p (60 Hz), 720p (50 Hz), 1080i (60 Hz), 1080i (50 Hz)
Integrated Speaker2W x 1
Audio Noise34 dB
Remote ControlMultifunctional
OSD LanguageMulti-language
Operational AmbientTemperature: 5° ~ 35° C (41° ~ 95° F)
CertificationUL, CE, FCC Class B, VCCI, C-Tick, CCC
Power SupplyAC 100 - 240V, 50 - 60Hz
Power Consumption250W
Dimensions (W x D x H)254 x 202 x 98 mm
Weight2.0 kg (4.5 pounds) 
						

							Maintenance
34Xerox DP 820 User’s Guide
Preset Signals
The following tables describe the projector’s preset signals.
Preset Signal fH (kHz) fV (Hz) Sync Size
640 X 480 VGA MODE 3 31.469 59.940 H(-), V(-) 800
VGA VESA 72 H
Z37.861 72.809 H(-), V(-) 832
VGA VESA 75 H
Z37.500 75.500 H(-), V(-) 840
VGA VESA 85 H
Z43.269 85.008 H(-), V(-) 832
800 
X 600 SVGA VESA 56 HZ35.156 56.250 H(+), V(+) 1024
SVGA VESA 60 H
Z37.879 60.317 H(+), V(+) 1056
SVGA VESA 72 H
Z48.077 72.188 H(+), V(+) 1040
SVGA VESA 75 H
Z46.875 75.000 H(+), V(+) 1056
SVGA VESA 85 H
Z53.674 85.061 H(+), V(+) 1048
1024 
X 768 XGA VESA 60 HZ48.363 60.004 H(+), V(-) 1344
XGA VESA 70 H
Z56.476 70.069 H(+), V(-) 1328
XGA VESA 75 H
Z60.023 75.029 H(+), V(+) 1312
XGA VESA 85 H
Z68.677 84.997 H(+), V(+) 1376
11 5 2  
X 864 SXGA VESA 70 HZ63.995 70.016 H(+), V(+) 1472
SXGA VESA 75 H
Z67.500 75.000 H(+), V(+) 1600
SXGA VESA 85 H
Z77.487 85.057 H(+), V(+) 1568
1280 
X 960 SXGA VESA 60 HZ60.000 60.000 H(+), V(+) 1800
SXGA VESA 75 H
Z75.000 75.000 H(+), V(+) 1680
1280 
X 1024 SXGA VESA 60 HZ63.981 60.020 H(+), V(+) 1688 
						

							Xerox DP 820 User’s Guide35
Maintenance
HDTV Preset Signals
Preset SignalsHorizontal 
Frequency 
(kHz)Ve r t i c a l  
Frequency 
(Hz)
480I15.8 kHz 60 Hz
480
P31.5 kHz 60 Hz
576
I15.6 kHz 50 Hz
576
P31.3 kHz 50 Hz
720
P45.0 kHz 60 Hz
720
P37.5 kHz 50 Hz
1080
I33.8 kHz 60 Hz
1080
I28.1 kHz 50 Hz