InFocus Projector Lp820 User Manual

							19
Image fuzzy or cropped Set your computer’s display resolution to 
the native resolution of the projector 
(Start>Settings>Control 
Panel>Display>Settings tab, 
select1024x768) Image clear and not cropped
Remote control not controlling my computer’s 
mouseConnect USB cable (page 7) then load USB 
drivers, if needed (page 10). Or, connect 
PS/2 cable and reboot your computer.Remote controls computer cursor. Note 
that the mouse is not functional in zoom 
mode (see page 35)
See page 25 for information on the remote
A
AA
For a laptop,
disable laptop
monitor
or turn-on dual-
display mode
A
X
computer 2
network
audio inLcomputer in
trigger
monitor outserial control
R audio incomputer 1USBmouse
computer 3
I
O
  
						

							20
Projector troubleshooting
Problem Solution Result
Image not square Adjust keystone on keypad or Picture menuSquare image
Image not sharpAdjust the focus lens or Sharpness in the 
Picture>Advanced menuCorrect image
Image does not fit 16:9 screenChange aspect ratio to 16:9 in 
Picture>Aspect ratio menuCorrect image
ABAB
AB 
						

							21
Image upside downTurn off Ceiling in Settings>System menuCorrect image
Image reversed left to right
Turn off Rear in Settings>System menu
Correct image 
Projected colors don’t match source
Adjust color, tint, color temperature, 
brightness, contrast in the menusCorrect image
A
B
AB
A
AB
COLOR
COLOR 
						

							22
The video embedded in my PowerPoint 
presentation does not play on the screenTurn off the internal LCD display on your 
laptopEmbedded video plays correctly
Lamp won’t turn on, LED blinking red (page 16)Make sure vents aren’t blocked; allow 
projector to cool for one minute Unplug projector; wait one minute; plug in 
projector and turn it on: lamp lights
Lamp won’t turn on, LED blinking red (page 16)Lamp must be replaced (page 38)
Lamp turns on
AB
A
A
B
blinksred
 
startup
screen
blinks
red
startup
screen 
						

							23 Still having problems?
If you need assistance, please visit our website or call us. See the inside of 
the back cover for a list of all relevant web addresses.
This product is backed by a limited two-year warranty. An extended war-
ranty plan may be purchased from your dealer. When sending the projector 
in for repair, we recommend shipping the unit in its original packing mate-
rial, or having a professional packaging company pack the unit. An optional 
ATA shipping case is available for purchase that provides adequate protec-
tion for shipping. Please insure your shipment for its full value.Image not centered on screenMove projector, adjust zoom, adjust heightCorrect image
Adjust horizontal or vertical position in 
Picture>Advanced menuzoom 
						

							24
Using the keypad buttonsMost buttons are described in detail in other sections, but here is an over-
view of their functions:
power–turns the projector on (page 9) and off (page 14).
menu–opens the on-screen menus (page 29).
select–confirms choices made in the menus (page 29).
up/down arrows–navigates to and adjusts settings in the menus (page 29).
auto image–resets the projector to the source.
presets–cycles through the available preset settings (page 31).
keystone–vertical keystone adjusts the squareness of the image (page 12). 
You can also adjust the horizontal keystone via the menus. See page 30.
volume–adjusts sound (page 26).
video and computer–changes the active source. 
menu navigation buttons 
						

							25
Using the remote controlThe remote uses two (2) provided AAA batteries. They are easily installed 
by sliding the cover off the remote’s back, aligning the + and - ends of the 
batteries, sliding them into place, and then replacing the cover.
To operate, point the remote at the projection screen or at the projector (not 
at the computer). The range of optimum operation is about 30 feet (9.14m).
To use the laser pointer, press and hold the Laser button. The laser turns off 
when the button is released, or times out after two (2) minutes of continu-
ous operation.
WA R N I N G: Do not look into the laser beam emitted from the top of the 
remote control.
Left and right remote mouse buttons are used to mimic the actions of the 
left/right mouse buttons on your computer. Mouse cursor movement is 
managed via the remote’s Cursor control. Connect a USB or PS/2 cable to 
the projector and the computer to use these buttons and control your com-
puter ’s mouse. When you do this for the first time, the Add New Hardware 
wizard may appear. See page 10 for details on loading the correct USB driv-
ers.
Press the remote’s Menu button to open the projector ’s menu system. Use 
the arrow buttons to navigate, and the Select button to select features and 
adjust values in the menus. See page 29 for more info on the menus.
The remote also has a power button to turn the projector on and off (see 
page 16 for shutdown info), volume and mute buttons to control the sound, 
a backlight button to light the remote’s buttons in the dark, and video and 
computer buttons to switch between sources.
Two presentation-specific features are also provided. Use the blank button 
to display a blank screen instead of the current slide (you can choose which 
color is displayed, see page 34); use the effect button to invoke a user-defin-
able action, such as freeze or zoom (see page 35 to learn to program this but-
ton).If you are displaying presentations in Microsoft
® PowerPoint
®, you can use 
the remote’s mouse buttons to navigate through your presentation while in 
Slide Show mode. To configure PowerPoint for this, choose Options from 
the PowerPoint Tools menu, click the View Tab, de-select the “Popup Menu 
on Right Mouse Click” option in the Slide Show section, then click OK. 
Then, when you’re in PowerPoint’s Slide Show mode, a left click advances 
to the next slide and a right click returns to the previous slide (other Power-
Point modes are not affected). 
Troubleshooting the remote Make sure the batteries are installed in the proper orientation and are 
not dead. The LED at the top of the remote lights when any button is 
pressed when the battery power is adequate.
 Make sure you’re pointing the remote at the projector, not the com-
puter, and are within the remote range of 30 feet (9.14m).
 If you are trying to control your computer ’s mouse, make sure a mouse 
cable is connected. If using a USB cable, make sure the correct drivers 
are installed.
backlight buttonright mouse button left mouse button
cursor control
navigation buttons
LED 
						

							26
Using the audio To play sound from the projector, connect your source to the Audio In con-
nector on the projector.
To adjust the volume, use the buttons on the keypad or remote.
To adjust the bass, treble, balance, or loudness, use the Audio menu (see 
page 33).
To mute the sound, press the Mute button.Troubleshooting audioIf there is no sound, check the following:
 Make sure the audio cable is connected.
 Make sure mute isn’t active. 
 Make sure the volume is turned up enough. Press the volume button 
on the keypad or remote.
 Make sure you are connected to the corresponding audio in for your 
source. Computer 1 and 2 share a single audio input, as do Video 2 
and 3. 
 Adjust the audio source.
 If playing a video, make sure the playback has not been paused.Connecting external speakersThe projector can be attached to external speakers that have their own 
power source by plugging speaker cables into the projector ’s left and right 
Audio Out connectors. 
connect audio cable
computer 2
network
audio inLcomputer in
trigger
monitor outserial control
R audio in
computer 1USBmouse
computer 3
I
O
adjust volume
computer 1computer 2 audio in
audio in
computer in
computer 3
computer 1 and 
corresponding audio
computer 3 and
corresponding audio
computer 2
network
audio inLcomputer in
trigger
monitor out
serial control
R audio in
computer 1USBmouse
computer 3
I
O
external speakers
speaker
cableaudio out 
						

							27
Optimizing computer imagesAfter your computer is connected properly and the computer ’s image is on 
the screen, you can optimize the image using the onscreen menus. For gen-
eral information on using the menus, see page 29.
 Adjust the Keystone, Contrast, or Brightness in the Picture menu. 
 Change the Aspect Ratio. Aspect Ratio is the ratio of the image width to 
image height. TV screens are usually 1.33:1, also known as 4:3. HDTV 
and most DVDs are 1.78:1, or 16:9. Choose the option that best fits your 
input source. See page 30 for details.
 Adjust the Color Temperature in the Advanced menu.
 Adjust the Phase, Tracking, or Horizontal or Vertical position in the 
Advanced menu.
 Once you have optimized the image for a particular source, you can 
save the settings using Presets. This allows you to quickly recall these 
settings later. See page 31.
 Adjust the Room Lighting. Select Dark if you are in a dark room, Light 
if in a bright room (page 31). 
Presentation featuresSeveral features are provided to make giving presentation easier. The fol-
lowing is an overview, details are found in the menu section on page 29.
The remote’s Effect button allows you to assign various features to the 
key. The default effect is Zoom. You can select from Blank, Mute, 
Aspect Ratio, Source, Auto Image, Freeze, Zoom, About, PiP, Mask, and 
Screen Trigger. See page 35 for details. 
 The Freeze effect allows you to freeze the displayed image. This is use-
ful if you want to make changes on your computer without your audi-
ence seeing them. 
The Blank button on the remote allows you to display a blank screen 
instead of the active source. See page 34.
 The PiP effect lets you show a video source in a smaller window on top 
of the computer image. See page 35.
 The Startup Logo menu option lets you change the default startup 
screen to a black, white, or blue screen. See page 34.
 Two menu options, Power Save and Screen Save, are provided to auto-
matically shut down the projector after several minutes of inactivity or 
display a blank screen. This helps preserve lamp life. See page 33 and 
page 34.
 A Low Power menu option is also available on the LP820 only to help 
lower the projector ’s fan sound volume. See page 33. 
						

							28
Optimizing video imagesAfter the video device is connected properly and the image is on the screen, 
you can optimize the image using the onscreen menus. For general informa-
tion on using the menus, see page 29.
 Adjust the Keystone, Contrast, Brightness, Color, or Tint in the Picture 
menu. See page 30. 
 Change the Aspect ratio. Aspect ratio is the ratio of the image width to 
image height. TV screens are usually 1.33:1, also known as 4:3. HDTV 
and most DVDs are 1.78:1, or 16:9. Choose the option that best fits your 
input source. See page 30.
 Select a Sharpness setting. See page 32.
 Adjust the Color Temperature. Select a listed value, or select User and 
individually adjust the intensity of the red, green, and blue color. See 
page 32.
 Adjust the Room Lighting. Select Dark if you are in a dark room, Light 
if in a bright room (page 31). 
Customizing the projectorYou can customize the projector for your specific setup and needs. See 
page 33 to page 37 for details on these features.
 For rear projection, turn Rear mode on in the Settings>System menu.
 For ceiling mounted projection, turn Ceiling mode on in the Set-
tings>System menu. 
 Specify which source the projector checks first for active video during 
power-up. 
 Specify the function of the Effect Key on the remote. 
 Turn the projector ’s display messages on and off.
 Turn on power saving features. 
 Specify blank screen colors and startup logos.
 Specify the menu language.
 Manage your projector via ProjectorNet software. See page 8 for more 
information.
 Project wirelessly with LiteShow wireless adapter. See page 6.
 Control your projector using RS232 commands. See page 8.
 Use the screen trigger to control your projection screen. See page 6.
 Customize the projector for your specific installation using optional 
long or short throw lenses. See page 41 for ordering information.