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InFocus Projector Lp425 User Manual

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    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. 
    						
    							21
    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. 
    						
    							23
    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. 
    						
    							25
    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 
    						
    							27
    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 
    						
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