InFocus Projector Lp425 User Manual

							17
Display Menu Functions
 
FIGURE 13
Display menu
Brightness
Adjusting the brightness changes the intensity of the image.
•Press the left mouse button to darken the image.
•Press the right mouse button to lighten the image.
Contrast
The contrast controls the degree of difference between the lightest 
and darkest parts of the picture. Adjusting the contrast changes 
the amount of black and white in the image.
•Press the left mouse button to decrease the contrast.
•Press the right mouse button to increase the contrast, making 
the blacks appear blacker and the whites appear whiter.
Tint
The Tint setting adjusts the red-green color balance in computer 
and NTSC video images.  
						

							18
Using the Projector
•
Press the left mouse button to increase the amount of green in 
the image.
•Press the right mouse button to increase the amount of red in 
the image.
Color
The Color setting adjusts a video image from black and white to 
fully saturated color.
•Press the left mouse button to decrease the amount of color in 
the image.
•Press the right mouse button to increase the amount of color in 
the image.
Blank Screen
Blank Screen determines what color (blue or black) is displayed 
when there is no active source. Click the button to toggle between 
the two options.
Reset All
Click either mouse button to reset all the options (except Lan-
guage and Video Standard) in all the menus to their original set-
tings.
Menu Position
This lets you move the menu to various locations on the screen, 
allowing you to view different parts of the image while making 
adjustments. The default position is the center of the screen. Click 
Menu Position to move the menu to the upper-left corner; click it 
again to move it to upper-right, then lower right, then lower left, 
then center again.  
						

							19
Audio Menu Functions
FIGURE 14
Audio menu
Vo l u m e
NOTE: Changing the volume 
from the menu is the same as 
changing it using the keypad. •
Press the left mouse button to decrease the volume. 
•Press the right mouse button to increase the volume.
Volume adjustments you make are saved for each source.
Tr e b l e
The Tr e b l e setting controls the higher frequencies of your audio 
source. 
•Press the left mouse button to decrease the treble. 
•Press the right mouse button to increase the treble.
Bass
The Bass setting controls the lower frequencies of your audio 
source. 
•Press the left mouse button to decrease the bass. 
•Press the right mouse button to increase the bass. 
						

							20
Using the Projector
Image Menu Functions
FIGURE 15
Image menu
Auto Image
NOTE: Some screen savers
interfere with the operation of
Auto Image. If you’re experiencing
problems, try turning your screen
saver off, then turning Auto Image
off and back on.
The projector automatically adjusts tracking, signal synchroniza-
tion and vertical and horizontal position for most computers. If 
you want to adjust these features manually, you must turn off 
Auto Image first by clicking it. Remember, to generate the best 
quality image, set your computer to output 800 x 600 resolution.
Auto Resize
The
 Auto Resize setting is available only for computer-generated 
images.
 
Auto Resize automatically resizes the image by scaling it 
up or down. 
When 
Auto Resize is on, the projector makes the best fit of the 
image to the screen. If you turn 
Auto Resize off (by clicking it), the 
image may be either cropped or too small for the screen. 
						

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Manual Sync
The projector adjusts signal synchronization automatically for 
most computers. But if the projected computer image looks fuzzy 
or streaked, try turning 
Auto Image off then back on again. If the 
image is still unacceptable, try adjusting the signal synchroniza-
tion manually:
1Click the 
Auto Image button to turn Auto Image off.
2Press the left or right mouse buttons repeatedly until the 
image is sharp and free of streaks.
NOTE: The Manual Sync, 
Manual Tracking, Horiz. Posi-
tion and Ve r t .  P o s i t i o n buttons 
are available only for computer 
sources. The projector sets these 
options automatically for a video 
source. Manual TrackingThe tracking function adjusts the projector to match the video 
signal from your computer. The projector usually adjusts the 
tracking automatically when you connect your computer. How-
ever, if the display shows evenly spaced, fuzzy, vertical lines or if 
the projected image is too wide or too narrow for the screen, try 
turning 
Auto Image off then back on again. If the image is still 
unacceptable, try adjusting the tracking manually as described 
below.
1Click the 
Auto Image button to turn Auto Image off.
2Press the left or right mouse buttons repeatedly until the 
fuzzy vertical bars are gone.
Horiz. Position
Follow these steps to manually adjust the horizontal position.
1Click the 
Auto Image button to turn Auto Image off.
2Press the left mouse button to move the image right; press the 
right mouse button to move the image left.
Positioning adjustments are saved when you power off the pro-
jector.
Ve r t .  Po s i t i o n
Follow these steps to manually adjust the vertical position.
1Click the 
Auto Image button to turn Auto Image off.
2Press the left mouse button to move the image down; press 
the right mouse button to move the image up.
Positioning adjustments are saved when you power off the pro-
jector. 
						

							22
Using the Projector
Controls Menu Functions
 
FIGURE 16
Controls menu
Video Standard
NOTE: If you already know the
video standard used in your
geographical area, it’s often best to
manually select it.
When Auto is on, the projector attempts to pick the video stan-
dard (NTSC, NTSC 4.43, PAL, PAL-M, PAL-N, or SECAM) auto-
matically based on the input signal it receives. (The video 
standard options may vary depending on your region of the 
world.) The input signals for SECAM, PAL-M, and PAL-N video 
cannot be automatically detected, therefore they must be chosen 
manually. If the projector is unable to detect the standard, the col-
ors might not look right or the image might appear “torn.” If this 
happens, manually select a video standard by clicking the button 
and cycling through the standards.
Standby TIme
This option lets you select how long the lamp stays on and the 
blank screen is displayed when you enter standby mode before 
the projector turns off. Select among 1, 5, 10, and 15 minutes by 
clicking the button and cycling through the options. 
						

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Language
You can display the on-screen menus in English, French, German, 
and Spanish. The default is English. 
•Click the button for the language you want. The menus redraw 
immediately.
Ceiling
When you select Ceiling, the projector turns the image upside 
down for ceiling-mounted projection.
Rear Projection
When you select Rear Projection, the projector reverses the image 
so you can project from behind a translucent screen.
Default Source
Default Source toggles between Computer and Video. This deter-
mines which source the projector checks first during power-up 
for active video. Click the button to toggle between the options.
Auto Source Select
This setting toggles between On and Off. When this feature is Off, 
the projector defaults to the source selected in Default Source. To 
display another source, you must manually select one by press-
ing the 
computer or video button on the keypad. When this fea-
ture is On, the projector automatically finds the active source, 
checking the default source first. Click the button to toggle 
between the options. 
						

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MAINTENANCE & TROUBLESHOOTING
This section describes how to:
•clean the lens
•replace the projection lamp 
•use the Kensington lock feature
•troubleshoot the projector
Cleaning the Lens
Follow these steps to clean the projection lens:
1Apply a non-abrasive camera lens cleaner to a soft, dry cloth.
•Avoid using an excessive amount of cleaner.
•Abrasive cleaners, solvents or other harsh chemicals might 
scratch the lens.
2Lightly wipe the cleaning cloth over the lens.
3If you don’t intend to use the projector immediately, replace 
the lens cap.
Replacing the Projection Lamp
WARNING: To avoid burns, 
allow the projector to cool for at 
least 30 minutes before you open 
the lamp module door. Never 
extract the lamp module while the 
lamp is operating.
The lamp hour counter on the status bar at the top of the menus 
counts the number of hours the lamp has been in use. The LP 425 
uses a metal halide bulb. These types of bulbs deteriorate over 
time. Replace the lamp when the brightness is no longer accept-
able. You can order new lamp modules from your In Focus 
dealer. See “Accessories” on page 35 for information.
Follow these steps to replace the projection lamp:
1Turn off the projector and unplug the power cord. 
2Wait 30 minutes to allow it to cool thoroughly.
3Place the projector on its side, then insert a small screwdriver 
or other flat object into the tabs on the lamp module door (Fig-
ure 17). 
						

							26
Maintenance & Troubleshooting
4Pull the lamp door up and remove it.
FIGURE 17
Removing the lamp door
CAUTION: Never operate the
projector with the lamp door open
or removed. This disrupts the air
flow and causes the projector to
overheat.
5Loosen the two non-removable screws on the outside of the 
module.
FIGURE 18
Loosening the screws on the lamp module 
						

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6Slide the lamp connector to the right to disconnect it from the 
projector (Figure 19).
FIGURE 19
Sliding the lamp connector
7Remove the module (Figure 20).
WARNING: Do not drop the 
lamp module or touch the glass 
bulb! The glass may shatter and 
cause injury.
F
IGURE 20
Removing the lamp module