InFocus Projector Lp640 User Manual

11
Skip this page if you did not connect the USB portion of the M1 com-
puter cable
For Windows 98:
 If you connected the USB cable, the Add New Hardware Wizard 
appears again. Drivers must be installed to use the USB functionality. 
The Wizard launches two times. 
The first time it detects a USB Human Interface Device (for the key-
board). 
The second time it detects a USB Human Interface Device (for the 
mouse). 
For Windows 2000, Windows ME, and Windows XP:
 The USB drivers are automatically...

12
Adjusting the imageAdjust the height of the projector, if necessary, by pressing the release but-
ton to extend the elevator foot. 
Rotate the leveling foot (located at the bottom back right corner), if neces-
sary.
Position the projector the desired distance from the screen at a 90 degree 
angle to the screen. 
See page 42 for a table listing screen sizes and distances.
Adjust the zoom or focus rings by rotating them until the desired image size 
and focus are produced.
If the image is not square,...

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Connecting a video device Standard video connectionsPlug the audio/video (A/V) cable’s yellow connector into the video-out 
connector on the video device. Plug the other yellow connector into the yel-
low Video 2 connector on the projector. 
Plug a white connector into the left audio out connector on the video device 
and plug a red connector into the right audio out connector on the video 
device. Plug the remaining white connector into the left audio in connector 
on the projector, and plug the red...

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Displaying a video imageRemove the lens cap. 
Press the Pow e r button on the top of the projector or the remote.
The LED flashes green and the fans start to run. When the lamp comes on, 
the startup screen is displayed and the LED is steady green. It can take a 
minute for the image to achieve full brightness. The Interactive Display on 
the projector indicates the startup status.
? No startup screen? Get help on page 16.
Plug in and turn on the video device.
The video device’s image should appear on...

15
Adjust the zoom or focus rings by rotating them until the desired image size 
and focus are produced.
If the image is not square, adjust the vertical keystone using the buttons on 
the keypad. 
Press the upper Ke y s t o n e  button to reduce the upper part of the image, and 
press the lower Ke y s t o n e  button to reduce the lower part.
You can also adjust the horizontal keystone on the LP640 via the menus, or 
set the projector to automatically adjust the vertical keystone. See page 30.
Adjust the...

16
Shutting down the projectorThe projector automatically blanks the screen after no active source is 
detected for 30 minutes. This blank screen helps preserve the life of the pro-
jector. The image returns when an active source is detected or a remote or 
keypad button is pressed. The Interactive Display on the projector indicates 
the shutdown status.
Screen Save
You can make the blank screen appear after five minutes by turning on 
Screen Save in the Settings>System menu. See page 33. There are six...

17
Source Troubleshooting
Problem Solution Result
No startup screenPlug power cable in, press Power button. 
Remove lens cap.Correct image
Only startup screen appears
Press the Computer button 
Activate laptop’s external portComputer image projected
computer
2
networkmonitoroutaudioout
audioin
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serial
control
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video
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video
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18
No computer image, just the words “Signal out of 
range” Adjust computer refresh rate in Control 
Panel>Display>Settings>Advanced>
Adapter (location varies by operating 
system)Computer image projected
The video embedded in my PowerPoint 
presentation does not play on the screenTurn off the internal LCD display on your 
laptopEmbedded video plays correctly
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Image fuzzy or cropped Set your computer’s display resolution to 
the native resolution of the projector 
(Start>Settings>Control 
Panel>Display>Settings tab, select 
1024x768) Image clear and not cropped
Remote control not advancing PowerPoint slides Connect USB cable (page 7) then load USB 
drivers, if needed (page 10).Remote advances slides
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
networkmonitor out
audio out...

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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
computer
2
networkmonitoroutaudioout
audioin
L
audioinserial
control
computer
in computer
1
video
2
video
in
RS-video
1
ABAB
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