NEC Lt220 Portable Projector Users Manual

							E-41 Press and hold the SOURCE button for a minimum of 2 seconds, the
projector will search for the next available input source. Each time you
press and hold the SOURCE button, the input source will change as
follows:
→ RGB1 → RGB2 → Video → S-Video → Viewer 
If no input signal is present, the input will be skipped. When the input
source you wish to project is displayed, release the button.
PROJECTING AN IMAGE 
 Selecting a Source
Detecting the Signal Automatically 
						

							E-42
PROJECTING AN IMAGE
Adjusting the Picture Size and Position
Place your projector on a flat level surface and ensure that the projector is
square to the screen.
Lift the front edge of the projector to center the image vertically.
Move the projector left to center the image horizontally on the screen.
Use the 3D REFORM feature for proper adjustment. See page E-45. 
						

							E-43
Adjust the Tilt Foot
qLift the front edge of the projector.
wPush up the Adjustable Tilt Foot Lever on the front of the projector to
extend the adjustable tilt foot (maximum height).
ePush down the Adjustable Tilt Foot Lever.
rLower the front of the projector to the desired height and release the
Adjustable Tilt Foot Lever to lock the Adjustable tilt foot. There is ap-
proximately 7 degrees of up and down adjustment for the front of the
projector.
PROJECTING AN IMAGE 
 Adjusting the Picture Size and Position
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Adjustable Tilt
Foot Lever
Adjustable Tilt  Foot
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							E-44 The rear foot height can be changed. Rotate the rear foot to the desired
height, but the vertical distance from the bottom to the desk or floor should
be 1 (25 mm) to make the projector horizontal on the flat surface.
*If the projected image does not appear square to the screen then
use the 3D Reform feature for proper adjustment. See page E-45.
CAUTION:
Do not use the tilt-foot for purposes other than originally intended. Mis-
uses such as gripping the tilt-foot or hanging on the wall can cause
damage to the projector.
Zoom
Use the Zoom lever to fine adjust
the image size on the screen
Focus
Use the Focus ring to obtain the
best focus.
PROJECTING AN IMAGE 
 Adjusting the Picture Size and Position
Up
Down
Up
Down 
						

							E-45
Correcting the Horizontal and Vertical Keystone Distortion (3D Reform)
PROJECTING AN IMAGE
Screen
Projected image
Use the 3D Reform feature to correct keystone (trapezoidal) distortion to
make the top or bottom and the left or right side of the screen longer or
shorter so that the projected image is rectangular.
You can also use a mouse to correct the Cornerstone distortion. To do so
with your mouse, pick and left-click on one corner of the image you want to
correct.
Do this for the remaining 3 corners. Right-click to display the confirmation
screen.
1. Project an image so that the screen is smaller than the area of the raster.
2. Pick up any one of the corners and align the corner of the screen with the
one of the image.
(The drawing shows the upper right corner.)
3. Press the 3D REFORM button on the remote control.
The CORNERSTONE adjustment screen is displayed.
NOTE: Press the 3D REFORM button to toggle between Cornerstone and Key-
stone. 
						

							E-46 4. Use the SELECT 
 button to select one icon which points in the
direction you wish to move the projected image frame.
PROJECTING AN IMAGE
Screen
5. Press the ENTER button.
6. Use the SELECT 
 button to move the projected image frame as
shown on the example.
7. Press the ENTER button.
Screen
8. Use the SELECT 
 button to select another icon which points in
the direction.
Screen
The confirmation screen is displayed.
On the Cornerstone adjustment screen,
select “Exit” and then “OK”, or press the
CANCEL button on the remote control. 
						

							E-47
PROJECTING AN IMAGE
9. Press the SELECT  or  button to highlight the [OK] and press the
ENTER button.
This completes the keystone correction.
Selecting “Cancel” will return to the adjustment screen without saving
changes (Step 3).
Selecting Reset will return to the factory default.
Selecting Undo will exit without saving changes.
NOTE: To return the 3D Reform correction setting values to the factory default,
press and hold the 3D REFORM button for a minimum of 2 seconds.
NOTE: During 3D Reform adjustment, Aspect Ratio and Screen may not be
available. Should this happen, first reset the 3D Reform data and then do each
setting. Second repeat the 3D Reform adjustment. Changing Aspect Ratio and/or
Screen setting can limit 3D Reform in its adjustable range.
The adjustable ranges for 3D Reform are as follows:
Horizontal ............. Max ±30° approx. (Max ±25° approx. on LT240)
Vertical ................. Max ±40° approx.
*The following are conditions at the above maximum angle when all of
the following are met
•Image is projected in Wide (Zoom)
•Resolution is XGA
Higher resolution than XGA limits 3D Reform in its adjustable range.
•Menu items should be set as follows:
Aspect Ratio ........... 4:3
Screen Type ........... 4:3
Screen Position ...... 0
•Horizontal and Vertical are adjusted separately.
A combination of both adjustments limits 3D Reform in its adjustable
range. 
						

							E-48
PROJECTING AN IMAGE
Optimizing RGB Picture Automatically
Adjusting the Image Using Auto Adjust
Optimizing RGB image automatically
Press the Auto Adjust button to optimize an RGB image automatically.
[Poor picture]
[Normal picture]
AUTO ADJ.
Press the Auto Adjust button to fine-tune the computer image or to remove
any vertical banding that might appear and to reduce video noise, dot
interference or cross talk (this is evident when part of your image appears
to be shimmering). This function adjusts the clock frequencies that elimi-
nate the horizontal banding in the image. This function also adjusts the
clock phase to reduce video noise, dot interference or cross talk. (This is
evident when part of your image appears to be shimmering.)
This adjustment may be necessary when you connect your computer for
the first time.
NOTE:
•Some signals may not be displayed correctly or take time.
•The Auto Adjust function does not work for component and video signal.
•If the Auto Adjust operation cannot optimize the RGB signal, try to adjust
Clock and Phase manually. See page E-88. 
						

							E-49
PROJECTING AN IMAGE
Turning Up or Down Volume
Sound level from the speaker and the AUDIO OUT mini jack on the projec-
tor can be adjusted.
increase volumeVolume bar
decrease volume
VOLUME
Using the Laser Pointer
OFF
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ELASER
You can use the laser to draw your
audiences attention to a red dot that you
can place on any object.
Press and hold the LASER button to acti-
vate the laser pointer.
CAUTION:
•Do not look into the laser pointer while it is on.
•Do not point the laser beam at a person. 
						

							E-50
Setting the function switch
ON OFF
There are two switches on the bottom of
the battery case: an applicable projector
selector switch (1) and laser enable/dis-
able switch (2). Check the projector be-
ing used and decide whether to enable
or disable laser, then set these switches
as necessary using the tip of a thin ball-
point pen. On this model, an applicable
projector selector switch (1) is not used.
Switch (2)
On: Enabled (the laser lights when the LASER button is pressed)
[Factory default]
Off: Disabled (the laser does not light even when the LASER button
is pressed)
Disable the laser when using in an environment in which the unit is acces-
sible to children.
PROJECTING AN IMAGE