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...

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...

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...

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...

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,...

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...

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...

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...