NEC Vt575 Projector User Manual

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3. Projecting an Image (Basic Operation)
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.
*If the projected image does not appear square to the screen then use the
Keystone feature for proper adjustment. See page 26.
 Adjusting the Picture Size and Position
A
C
 
I
N
Z
OOMFOCU
S
AC IN
ZOOMFOCU
S
Adjust the Tilt Foot
1. Lift the front edge of the projector.
2. Push up the Adjustable Tilt Foot Levers on the right and left sides
of the projector to extend the adjustable tilt feet (maximum height).
3. Push down the Adjustable Tilt Foot Levers.
4. Lower the front of the projector to the desired height and release
the Adjustable Tilt Foot Lever to lock the Adjustable tilt foot. There
is approximately 10 degrees of up and down adjustment for the
front of the projector.
CAUTION
Do not use the tilt-foot for purposes other than originally intended. Misuses
such as gripping the tilt-foot or hanging on the wall can cause damage to the
projector.
2
ZOOMF
O
CUS
SELECTLAMP
STATUS
POWER
VIDEO
S-VIDEO
COMPUTER-1
COMPUTER-2
ON/STAND BY
AUTO
ADJ.1
2
ZOOMF
O
CUS
SELECTLAMP
STATUS
POWER VIDEOS-VIDEOCOMPUTER-1
COMPUTER-2
ON/STAND BY
A
U
T
O
A
D
J
.
3
4
4
Adjustable Tilt  Foot
Move the projector left to center the image horizontally on the screen.
Adjustable Tilt
Foot Lever Adjustable Tilt
Foot Lever 
						

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3. Projecting an Image (Basic Operation)
AC IN
ZOOMFOCU
S
ZOOM
FO
C
U
S
FO
C
U
S
ZOOM
AC IN
ZOOMFOCU
S
FO
C
U
S
Focus
Use the FOCUS ring to obtain the best focus.
Zoom
VT676/VT670/VT575/VT470
Use the ZOOM lever to finely adjust the image size on the
screen.
VT47
Use the Digital ZOOM button on the projector cabinet to
electronically enlarge or reduce the image size.
NOTE: Digital Zoom can cause result in a blurry image because
zooming is made electronically.
VT47
VT676/VT670/VT575/VT470 
						

							26
 Correcting Keystone Distortion
Auto Keystone Correction
The Auto Keystone correction feature will correct the vertical distortion of a projected image on the screen. No special
operation required. Just put the projector on a flat surface.
Note that the vertical keystone angle can be corrected between 30 degrees upward and 30 degrees downward of
projector tilt from level.
3. Projecting an Image (Basic Operation)
NOTE: Auto and Manual Keystone correction angle could be less than 30 degrees depending on some kinds of signal and aspect
ratios.
NOTE: The Auto Keystone Correction feature can cause an image to be slightly blurred because the correction is made electroni-
cally.
Manual Keystone Correction
You can also correct the vertical keystone distor-
tion manually.
To  do so:
1. Press the MENU button.
The menu will be displayed.
2. Turn off the Auto Keystone function.
Use the SELECT 
 button to select
“Image” and then press the SELECT 

button. The “Auto Keystone” will be
displayed.  Press the SELECT 
 to select
“Off”.
3. Select the Keystone function.
Use the SELECT 
 button to select
“Keystone”.
4. Correct the vertical distortion.
Use the SELECT 
 or  button to correct
the vertical keystone distortion.
NOTE: The Keystone Correction feature can cause
an image to be slightly blurred because the
correction is made electronically. 
						

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3. Projecting an Image (Basic Operation)
5. Press the MENU button to close the menu.
NOTE: You can save the changes using the Keystone Save
feature when you turn off the projector. See page 39. 
						

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3. Projecting an Image (Basic Operation)
 Optimizing RGB Picture Automatically
Adjusting the Image Using Auto Adjust
Optimizing an RGB image automatically.
Press the AUTO ADJ. button to optimize an RGB image automatically.
[Poor picture]
[Normal picture]
VIDEO
AUTO
ADJ.
S-VIDEO COMPUTER-1 COMPUTER-2
VOLUMES-VIDEOVIDEO L-CLICK
MOUSER-CLICK
AUTO ADJ. COMPUTER
ASPECT HELP
FREEZE PICTURE
1
2
Press the AUTO ADJ. 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 shimmer-
ing). This function adjusts the clock frequencies that eliminate 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 Horizontal/Vertical Position Clock and Phase
manually. See pages 45 and 46.
 Turning Up or Down Volume
Increase volume
Decrease volumeVOLUMES-VIDEOVIDEO L-CLICK
MOUSER-CLICK
AUTO ADJ. COMPUTER
ASPECT HELP
FREEZE PICTURE
1
2
Sound level from the speaker and the AU-
DIO OUT jack (Stereo mini) on the projec-
tor can be adjusted.
VIDEO S-VIDEO
AUTO
ADJ.
COMPUTER
VT47VT676/VT670/VT575/VT470 
						

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 Turning off the Projector
To turn off the projector:
3. Projecting an Image (Basic Operation)
LAMP
STATUS
POWER VIDEO
AUTO
ADJ.
S-VIDEO COMPUTER-1 COMPUTER-2
ON/STAND BY
SELECT
L-CLICK
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
R-CLICK
First, press the POWER (ON/STAND BY) button on the
projector cabinet or the POWER OFF button on the re-
mote control. The “Power Off / Are you sure?” message
will appear.
CAUTION
Do not unplug the power cable from the wall outlet or do not turn off
the main power under any one of the following circumstances. Doing
so can cause damage to the projector:
•While the Hour Glass icon appears.
•While the cooling fans are running. (The cooling fans continue to
work for 30 seconds after the projector is turned off)
A
C
 IN
ZOOM
F
O
C
U
S
 After Use
Preparation: Make sure that the projector is turned off.
1. Unplug the power cable.
2. Disconnect any other cables.
3. Retract adjustable tilt feet if extended.
4. Cover the lens with the lens cap.
5. Put the projector and its accessories in the supplied soft carrying case.
Secondly, press the ENTER button or press the POWER
(ON/STAND BY) or the POWER OFF button again.
The power indicator will glow orange. After the projector
turns off, the cooling fans keep operating for 30 seconds
(Cooling-off time).
Immediately after turning on the projector and displaying
an image, you cannot turn off the projector for 60 sec-
onds.
Finally, turn off the Main Power switch. The power indica-
tor will go out.
POWER
STATUS
LAMP
POWER
POWER
STATUSLAMP
STATUSLAMP
Power On Fan running Standby
Steady green light Blinking
orange lightSteady orange
light 
						

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4. Convenient Features
 Turning off the Image and Sound
Press the PIC-MUTE button to turn off the image and sound for a short
period of time. Press again to restore the image and sound.
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
 Freezing a Picture
Press the FREEZE button to freeze a picture. Press again to resume
motion.
 Enlarging and Moving a Picture
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
You can enlarge the picture up to 400 percent.
To  do so:
1. Press the MAGNIFY (+) button to magnify the picture.
To move the magnified image, use the SELECT button.
2. Return the image to the original size.
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
VOLUMES-VIDEO
ASPECT HELP
FREEZE PICTURE
1
2 
						

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4. Convenient Features
 Using Remote Mouse Receiver (VT676/VT670/VT470 only)
The remote mouse receiver enables you to operate your computer’s mouse functions from the remote control. It is a
great convenience for clicking through your computer-generated presentations.
Connecting the remote mouse receiver to your computer
If you wish to use the remote mouse function, connect the mouse receiver and computer.
The mouse receiver can be connected directly to the computer’s USB port (type A).
NOTE: Depending on the type of connection or OS installed on your computer, you may have to restart your computer or change
your computer settings.
30˚
30˚
Remote mouse receiverComputer
To USB port of PC or Macintosh
When operating a computer via the remote mouse receiver
Remote sensor on the
remote mouse receiver7m/22 feet
When connecting using the USB terminal
For PC, the mouse receiver can only be used with a Windows 98/Me/XP* or Windows 2000 operating system.
* NOTE: In Windows XP, if the mouse cursor will not move correctly, do the following:
Clear the Enhance pointer precision check box underneath the mouse speed slider in the Mouse Properties dialog box [Pointer
Options tab].
NOTE: Wait at least 5 seconds after disconnecting the mouse receiver before reconnecting it and vice versa. The computer may
not identify the mouse receiver if it is repeatedly connected and disconnected in rapid intervals.
Operating your computer’s mouse from the remote control
You can operate your computers mouse from the remote control.
PAGE UP/DOWN Button:scrolls the viewing area of the window or to move to the previous or next slide in PowerPoint
on your computer.

 / Mouse Buttons: moves the mouse cursor on your computer.
MOUSE L-CLICK Button: works as the mouse left button.
MOUSE R-CLICK Button: works as the mouse right button. 
						

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 Using the Menus
NOTE: The on-screen menu may not be displayed correctly while interlaced motion video image is projected.
1. Press the MENU button on the remote control or projector cabinet to display the Menu.
5. Using On-Screen Menu
ENTEREXITUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
MENU
2. Press the SELECT 
 or  button on the remote control or the projector cabinet to highlight the menu for
the item you want to adjust or set.
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
3. Press the SELECT  button or the ENTER button on the remote control or the projector cabinet to select
a submenu or item. 
						

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5. Using On-Screen Menu
4. Use the SELECT 
 or  button on the remote control or the projector cabinet to select the item you want
to adjust or set.
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
5. Adjust the level or turn the selected item on or off by using
SELECT 
 or  button on the remote control or the projector
cabinet.
The on-screen slide bar will show you the amount of increase
or decrease.
Changes are stored until you adjust it again.
EXIT ...................... Return to the previous menu.
6. Repeat steps 2-5 to adjust an additional item, or press the
MENU button to close the menu.
ENTEREXITUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
MENU
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN