InFocus Projector In3902 User Manual

							20
ProblemSolutionResult
No computer image, just the words “Signal out of 
range” Press the Auto Image Button on keypad. Adjust computer 
refresh rate in Control Panel > Display > Settings > Advanced 
> Adapter (location varies by operating system)
You may also need to set a different resolution on your 
computer, as shown in the following problem, “image fuzzy or 
cropped”
Computer image projected
Only my laptop’s background appears, not the 
Desktop iconsDisplayLink - Use DisplayLink software to change the display 
mode from Extended Desktop to Duplicated Desktop.
Windows - Disable Extend my Windows Desktop in Control 
Panel > Display > Settings > Display 2 (location varies by 
operating system) 
Background and Desktop projected
Signal out of
 the range
A
A
A
A
A
 
Uncheck this 
option, then 
click Apply
A
A 
						

							21
Image fuzzy or cropped Set your computer’s display resolution to the native 
resolution of the projector (Start > Settings > Control 
Panel > Display > Settings tab)Image clear and not cropped
Image not centered on screenMove projector, adjust zoom, adjust heightCorrect image
Problem Solution Result
AA
For a laptop, 
disable laptop 
monitor or turn-
on dual-display 
mode
A
A
Adjust horizontal or 
vertical position in 
Advanced Picture 
menu 
						

							22
Image not squareAdjust Keystone on keypadSquare image
Image not sharpAdjust Sharpness in the Basic Picture menuCorrect image
Image does not fit 4:3 or 16:9 screenChange aspect ratio to 4:3 or 16:9 in Basic 
Picture>Aspect ratio menuCorrect image
Problem Solution Result 
						

							23
Image upside downTurn off Ceiling Mount in Setup menuCorrect image
Image reversed left to rightTurn off Rear Project in Setup menuCorrect image
Projected colors don’t match sourceAdjust color, tint, brightness, contrast in the Basic 
Picture menuCorrect image
Problem Solution Result
A
A
COLORCOLOR 
						

							24
The video embedded in my PowerPoint presentation 
does not play on the screenIf your computer is using the projectors DisplayLink 
connector, see the DisplayLink Users Guide for video 
troubleshooting information.
Turn off the internal LCD display on your laptop
Embedded video plays correctly
Lamp won’t turn on, Temperature light is onMake sure vents aren’t blocked, turn off the projector 
and allow it to cool for one minuteLamp turns on
Problem Solution Result
A
AB
A
AB
B
A
Temperature light
Startup
Screen 
						

							25
Still need assistance?
If you need assistance, visit our website at www.infocus.com/service or call us. 
Check out our HOW TO section there for additional information on using 
this projector for home theater or gaming applications. See the Quick Start 
Poster/Booklet for support contact information.
This product is backed by a limited warranty. An extended warranty plan 
may be purchased from your dealer. When sending the projector in for 
repair, we recommend shipping the unit in its original packing material, or 
having a professional packaging company pack the unit. Please insure your 
shipment for its full value.
“Replace lamp” message appears at startup, lamp 
won’t turn on, Lamp light is turned onLamp must be replaced (on page 46)Lamp turns on
Problem Solution Result
A
Lamp light
lamp door
replace lampStartup
Screen 
						

							26
Using the remote control
The remote uses two (2) provided AA batteries. They are easily installed by 
removing the cover from the remote’s back, aligning the + and - ends of the 
batteries, sliding them into place, and then replacing the cover.
Caution: 
• When replacing the batteries, be aware that using batteries other than 
the type provided with the projector may risk severe damage to the 
remote. 
• When disposing of the batteries, be sure to do so in an enviromentally 
proper manner.
• If the remote control gets wet, wipe it dry immediately.
• Avoid excessive heat and humidity.
• Ensure the batteries polarity (+/-) is aligned correctly.
• Do not mix new and old batteries together, or mix different types of 
batteries together.
• Replace the batteries as soon as they run out.
• Remove batteries from the remote control when storing or not in use 
for a prolonged period.
The remote also has:
•Volume buttons to adjust the sound.
•Custom button that can be assigned to a special function, like Blank 
Screen or Freeze (
on page 34).
•Source button to switch between sources.
•Blank button to blank the screen.
•Presets button to select stored settings (on page 32).
•Mute button to silence the audio.
•Auto Image button to resynch the projector to the source.
•Resize button to switch among aspect ratios (on page 32).
Troubleshooting the remote
• Make sure the batteries are installed in the proper orientation and are 
not dead.
• Make sure you’re pointing the remote at the projector or the screen, not 
the computer, and are within the remote range of 15 feet (4.5m). For 
best results, point the remote at the projector.
navigation 
buttons 
						

							27
Using the audio
Using the projector’s speakers
When the computer is using the DisplayLink or HDMI connector, both 
audio and video are sent over the cable to the projector and audio will play 
from the projectors speakers.
For inputs other than DisplayLink and HDMI, to use the projectors 
speakers, connect the audio source to the Audio In Computer or Video 
connectors.
To adjust the volume, press the Volume buttons on the keypad or remote.
Troubleshooting Audio
If you aren’t hearing the audio, check the following:
• If your computer is using the projectors DisplayLink or HDMI 
connector, see the InFocus DisplayLink Software Users Guide on the 
website at www.infocus.com/displaylink for audio troubleshooting 
information.
• Make sure the audio cable is connected to the correct Audio In 
connector, Computer or Video.
• 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. By default, audio in VGA 1/2 corresponds to VGA 1, VGA 2 
and LitePort, audio in composite s-video corresponds to S-video and 
Composite. You can changes these assignments (
on page 35).
• Make sure that you are connected to an audio out connector on the 
source as opposed to a line-in or microphone connector.
• Adjust the audio source.
• If playing a video, make sure the playback has not been paused.
Connecting external speakers
The projector can be attached to external amplified speakers by connecting 
a 3.5mm stereo audio cable from the Audio Out connector on the projector to 
the amplified speakers. Alternatively, you can bypass the projector’s audio 
system and connect the audio directly from your source to a stereo or home 
theater system.
NOTE: DisplayLink and HDMI audio are passed to the Audio Out 
connector.
connect audio cable
adjust volume
external speakers 
with own power 
source
speaker 
cableaudio out 
						

							28
Using the keypad buttons
Most buttons are described in detail in other sections, but here is an 
overview of their functions:
Power–turns the projector on and off (on on page 9).
Auto Image–resets the projector to the source.
Presets–cycles through the available preset settings (on page 32).
Keystone–adjusts squareness of the image (on page 10).
Menu–opens the on-screen menus (on page 31).
Select–confirms choices made in the menus (on page 31).
Up/Down arrows–navigates to and adjusts settings in the menus (on 
page 31).
Volume–adjusts sound (on page 27).
Source–changes the active source.
menu navigation 
buttons 
						

							29
Optimizing computer images
After the projector is running and the image is on the screen, you can 
optimize the image using the onscreen menus. For general information on 
using the menus (on page 31).
• Adjust the Keystone, Contrast, or Brightness in the Basic Picture menu 
(
on page 32).
• Change the Aspect Ratio. Choose the option that best fits your input 
source (
on page 32).
• Adjust the Color Temperature in the Advanced Picture menu (on 
page 33).
• Adjust the Phase, Tracking, or Horizontal or Vertical position in the 
Advanced Picture menu (
on page 33).
• 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 (
on page 32).
• If your computer is using the projectors DisplayLink connector, see the 
InFocus DisplayLink Software Users Guide for information about 
optimizing images.
NOTE: To achieve maximum contrast, you can disable LiteBoard Wand use. 
To do this, set Enabled to No in the LiteBoard Wand submenu in the Setup 
menu (
on page 15).
Presentation features
Several features are provided to make giving presentations easier. Here is 
an overview, details are found in the menu section.
• The Custom key allows you to assign various features to the button. 
The default effect is Source Info, which displays information about the 
projector and current source (
on page 34).
• The Search Screen option lets you change the appearance of the blank 
screen and start up screen (
on page 35).
• Two options, Auto Off and Screen Save Time, are provided to 
automatically shut down the projector after several minutes of 
inactivity or display a black screen. This helps preserve lamp life (
on 
page 34).