NEC Lt155 Lcd Projector Users Manual

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PC CONTROLVIDEO S-VIDEO RGB AUDIO
DVI
LT156
Wiring Diagram
RGB Signal cable (supplied)To mini D-Sub 15-pin connector on
the projector. It is recommended that
you use a commercially available
distribution amplifier if connecting a
signal cable longer than the supplied
one.
For LT156:
DVI-D – DVI-D signal cable
(supplied)
To DVI connector on the projector.
IBM VGA or Compatibles(Desktop type or notebook type)
DVD Player (with component output) Document Camera
Optional Component
V cable To video, S-video, and audio
inputs on the projector. VCR, DVD Player or
LaserDisc Player
Macintosh or Compatibles
(Desktop type or notebook type)
NOTE: When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning on the power to the notebook PC. In most casessignal cannot be output from RGB output unless the notebook PC is turned on after connecting with the projector.
NOTE:
* If the screen goes blank while using your remote control, it may be the result of the computer’s screen-saver or power management software.
* If you accidentally hit the POWER button on the remote control, wait 60 seconds and then press the POWER button again to resume.
NOTE: If using video, S-video, or audio cables, the cables should be 3 m (9.8 feet) or shorter.
For LT156:
NOTE: Some personal computers or video cards may not offer images correctly on LT156.
To connect a DVI connector on your computer to LT156, attach the supplied DVI-D – DVI-D signal cable to the DVI connector on the projector. If you use a separately
sold DVI cable, images may not be correctly displayed.
NOTE: The DVI connector can accept a maximum resolution of 1024x768(XGA) when DVI (DIGITAL) input is selected. 
						

							E – 19
C CARD
PC CONTROLVIDEO
DVI-DUSBS-VIDEO
AUDIO
MENUENTERCANCELSELECT
POWER STATUS ON
/STAND BY
SOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
A
C
  I
N
EO
DVI-DS-VIDEO
AUDIODVI
AUDIO
MENUENTERCANCELSELECT
POWER STATUS ON
/STAND BY
SOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
A
C
  IN
C CARD
PC CONTROLVIDEO
RGBUSBS-VIDEO
AUDIO
RGB
S-VIDEO
AUDIO DEORGB INPUT
AUDIO
Audio cable (not supplied)
Connecting Your PC
Connecting your PC to your MultiSync LT155 (XGA)/ LT154 (XGA) projector will enable you to project your computer’s screen image for an
impressive presentation.
To connect to a PC, simply:
1. Turn off the power to your projector and computer.
2. Use the supplied signal cable to connect your PC to the projector.
3. Turn on the projector and the computer.
4. If the projector goes blank after a period of inactivity, it may be caused by a screen saver installed on the computer you’ve connected to the
projector.RGB signal cable (supplied)
To mini D-Sub 15-pin connector on the
projector. It is recommended that you
use a commercially available
distribution amplifier if connecting a
signal cable longer than the supplied
one.
Audio cable (not supplied)DVI-D – DVI-D signal cable
(supplied)
To DVI connector on the projector.
DVI-A – VGA adapter
(supplied)
IBM VGA or Compatibles
IBM VGA or Compatibles
Connecting Your PC with a DVI Connector
You can connect your PC with a DVI output to your MultiSync LT156 (XGA) projector.
When connecting a PC with a D-sub 15 pin analog connector, attach the supplied DVI-A – VGA adapter to the D-sub 15 pin connector of your PC.
To connect to a PC, simply:
1. Turn off the power to your projector and computer.
2.① Use the supplied DVI-D--DVI-D signal cable to connect a DVI connector of your PC to the projector.
➁ To connect a PC with a mini D-sub 15 pin- mini D-sub 15 pin connector, attach the supplied DVI-A – VGA adapter to the DVI connector on the
projector.
3. Turn on the projector and the computer.
4. If the projector goes blank after a period of inactivity, it may be caused by a screen saver installed on the computer you’ve connected to the
projector.Mini D-Sub 15 pin connector
LT155/LT154
LT156 DVI connector ①
Mini D-Sub 15
pin connector ➁
RGB signal cable (supplied)To mini D-Sub 15-pin connector on the projector. It is
recommended that you use a commercially available dis-
tribution amplifier if connecting a signal cable longer than
the supplied one. Connection Option ① when using DVI output.
Connection Option ➁ when using mini D-Sub 15 pin output. 
						

							E – 20
C CAR
D
PC
 CON
TROLVIDE
O
DVI-DU
SBS
-VIDE
O
AU
DIO
MENUENTERCANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
AC  IN
EO
DVI-DS-VIDEO
AUDIODVI
AUDIO
MENUENTERCANCELSELECT
POWER STATUS ON
/STAND BY
SOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
A
C
  IN
C CARD
PC CONTROLVIDEO
RGBUSBS-VIDEO
AUDIO
R
G
B
S
-VID
E
OAU
D
IO D
EORGB INPUT
AUDIORGB Signal cable (supplied)
Audio cable (not supplied)
1ON DIP
23456
Pin adapter for Macintosh
(not supplied)
For older Macintosh, use a commercially
available pin adapter to connect to your
Macs video port.
Connecting Your Macintosh Computer
Macintosh (Desktop type)
RGB Signal cable (supplied)
Audio cable (not supplied)
DVI-A – VGA adapter
(supplied)
To connect to a Macintosh, simply:
1. Turn off the power to your projector and your Macintosh computer.
2. Use the supplied signal cable to connect your Macintosh computer to the
projector.
3. Turn on the projector and the Macintosh computer.
For LT156:
When connecting a Macintosh with a mini D-sub 15 pin analog connector,
attach the supplied DVI-A – VGA adapter to the DVI connector on the projec-
tor.
Macintosh (Notebook type)
LT155/LT154
LT156 
						

							E – 21
MENU
ENTERCANCELS
E
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A
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P
C  C
A
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AC
C
E
S
S
AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
RGB
S-VIDEO
AUDIO DEORGB INPUTY     Cb     Cr R     L AUDIO
R     L AUDIO
Red
White
Y
Cb
Cr
Red
White DVD player
Audio cable (not supplied)
Audio Equipment
Connecting Your DVD Player
You can connect your projector to a DVD player with component out-
puts or Video output. To do so, simply:
1. Turn off the power to your projector and DVD player.
2. If your DVD player has the component video (Y,Cb,Cr) output, use
the optional 15-pin-to-RCA
3 cable to connect your DVD player to
the RGB INPUT connector on the projector.
For a DVD player without component video (Y,Cb,Cr) outputs, use
common RCA cables (not provided) to connect a composite VIDEO
output of the DVD player to the Video Input of the projector.
3. Turn on the projector and DVD player.
NOTE: Refer to your DVD player’s owner’s manual for more information aboutyour DVD player’s video output requirements,
Optional 15-pin-to-
RCA
3 cable (optional)
(Component V )
MENU
ENTERCANCELS
E
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S
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  C
A
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A
C
C
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S
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AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
EO
DVI-DS-VIDEO
AU
DIODVI-D
AUDIO
DVI-A – VGA adapter
(supplied)
LT155 / LT154
For LT156:
Attach the supplied DVI-A--VGA adapter to the DVI connector on your
projector.
LT155/LT154
LT156 
						

							E – 22
MENU
ENTERCANCELSELECT
POWER STATUS ON
/STAND BY
SOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
A
C
 
 
I
N
C
 
C
A
R
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P
C
 
C
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LV
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OR
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S
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RGB
S-VIDEO
PC CONTROLVIDEO
USBS-VIDEO
VIDEO
R     LS-VIDEO
AUDIO
R        L AUDIO
VIDEO
VCR/ Laser disc player
S-video cable (not supplied)
Audio equipment
Connecting Your VCR or Laser Disc Player
Use common RCA cables (not provided) to connect your VCR, laser disc player or document camera to your projector.
To make these connections, simply:
1. Turn off the power to the projector and VCR, laser disc player or document camera.
2. Connect one end of your RCA cable to the video output connector on the back of your VCR or laser disc player, connect the other end to the Video
input on your projector. Use an audio cable (not supplied) to connect the audio from your VCR or laser disc player to your audio equipment (if your
VCR or laser disc player has this capability). Be careful to keep your right and left channel connections correct for stereo sound.
3. Turn on the projector and the VCR or laser disc player.
NOTE: Refer to your VCR or laser disc player owner’s manual for more information about your equipment’s video output requirements.
Audio cable(not supplied)
Video cable(not supplied)
Document camera 
						

							E – 23
About Startup screen
(Menu Language Select screen)
When you first turn on the projector, you will get the Startup screen.
This screen gives you the opportunity to select one of the seven menu
languages: English, German, French, Itilan, Spanish,Swedish and Japa-
nese.
To select a menu language, follow these steps:
1. Use the Select ▲ or ▼ button to select one of the seven languages
for the menu.
2. Press the Enter button to execute the selection.
3. The Basic/Custom menu will be displayed in the language you
have selected.
To close the menu, press the Cancel button.
After this has been done, you can proceed to the advanced menu op-
eration.
If you want, you can select the menu language later. See “Language”
on page E-36. 
						

							E – 24
3. OPERATION
Connecting the Power Cable and Turn on the
Projector
Before you turn on your projector, ensure that the computer or video
source is turned on and that your lens cap is removed.
1.Connect the supplied power cable to the projector.
MENUENTERCANCEL
SELECT
POWE
RSTATUS ON
/STAND BYSOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
AC  IN
C CARD
USBPC CONTROLVIDEO S-VIDEO RGB
AUDIO
Plug the supplied power cable in the wall outlet. The projector will
go into its standby mode and the power indicator will glow orange.
2.Turn on and off the Projector
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASER
RGB 2 PJ
ON OFF
Power ON button
MEN
ENTER
CANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
PC CONTROLVIDEO
S-VIDEOPower ON/STAND BY button
Indicator
To turn on the projector:
Only after you press the “On” button on the remote control (“ON/
STAND BY” button on the projector cabinet) will the power indicator
turn to green and the projector become ready to use.
NOTE: To turn the projector on by plugging in the power cable, use themenu and enable the “Auto Start” feature. (See page E-38.)
NOTE: Immediately after turning on the projector, screen flicker may occur.This is not a fault. Wait 3 to 5 minutes until the lamp lighting is stabilized.
To turn off the projector:
First press the “off ” button on the remote control (“ON/STAND BY”
button on the projector cabinet) for a minimum of two seconds. The
power indicator will glow orange. After the projector turns off, the
cooling fans keep operating for one minute.
NOTE: Do not disconnect the power cable during this time. Then, unplugthe power cable. The power indicator will go out.
Status of indicator light: turn on
POWER STATUSPOWER STATUS
ON/
STAND BYPOWER STATUS
High-Bright mode:
stand by
steady orange light
flashing green light
steady green light flashing one minute
steady light
Eco mode:
POWER STATUS
POWER STATUS
POWER STATUS
ON/
STAND BY
stand by
steady orange light
flashing green light
(High-Bright mode)steady green light
(Eco mode) flashing one minute
steady light
Status of indicator light: turn off
ON/
STAND BY
POWER STATUSPOWER STATUS
POWER STATUS
ON
steady green light
change to flashing
green lightsteady orange light cooling down
stand by Press a minimum
of two seconds. 
						

							E – 25
3.Adjust a Projected Image
Select the Computer or Video Source
HELPPOINTERPC CARDAUTO ADJ.
VIDEO S-
VIDEO
RGB 1 RGB  2
P
J
ENTER
CANCELSELECT
ON
/STAND BY
SOURCE
AUTO  
ADJUST
Press the Source button on the remote control or the projector cabinet
to select “Video” (VCR, document camera, or laser disc player), S-
Video”, “RGB” (computer or DVD with component output) [ “DVI digital”
, “DVI analog” (computer with DVI output: LT156 only)] or “PC Card
Viewer” (slides on a CompactFlash card) to display the image.
Or press the “Menu” button on the remote control or the cabinet and
use the menu to select your video source: “Video”, “S-Video”, “RGB
(DVI on LT156)” or “PC Card Viewer”.
NOTE: If no input signal is available, the projector will display a blue back-ground (factory preset).
Adjust the Image Size and the Focus
Use the Zoom lever to fine adjust the image size on the screen
Use the Focus ring to obtain the best focus.
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.
Rotate the rear foot to make the
image square to the screen.
Use keystone correction for proper
adjustment. 
						

							E – 26
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASERRGB 2 PJ
ON OFF
[Poor picture]
[Normal picture] Adjust the Tilt Foot
1. Lift the front edge of the projector.
2. Press the Tilt button on the front of the projector to extend the ad-
justable tilt foot (maximum height).
MENUENTERCANCELSELECT
POWERSTATUS ON
/STAND BYSOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
AC  IN
C
 C
A
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S
BP
C
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2
1
3. Press and hold the Tilt button.
4. Lower the front of the projector to the desired height and release the
button to lock the Adjustable tilt foot.
There is approximately 10 degrees of up and down adjustment for
the front of the projector.
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.
To fine-adjust the height of the rear foot, remove the spacer (black
rubber) and rotate the rear foot to the desired height.
*If the projected image does not appear square to the screen then
use keystone correction for proper adjustment.Adjust the Image Using Auto Adjust
The Auto Adjust function automatically optimizes the image in RGB
mode.
ENTER
CANCELSELECT
ON
/STAND BY
SOURCE
AUTO  
ADJUST
Press the Auto Adjust button to adjust Position-H/V and Pixel Clock/
Phase for an optimal picture. Some signals may not be displayed cor-
rectly or take time to switch between sources.
NOTE: For LT156
*The horizontal and vertical position adjustments to DVI digital signal are not
stored in memory on LT156.
*The Pixel Clock and Phase items are not available for DVI digital signal on
LT156.
MENUENTERCANCELSELECT
POWER STATUS ON
/STAND BYSOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
A
C
  IN
C CARD
USBPC CONTROLVIDEO
S-VIDEO
RGB
AUDIO
3 4
ERC
POWER STATUS ON/STAND BYSOURCE
AUTO
 
ADJUST
PC  CARD 
ACCESS
GBAUDIO
max.min.
16mm SpacerUpDown 
						

							E – 27
Source display
Each time the Source button is pressed, the input source will change
as follows:
→ RGB [“DVI (DIGITAL) →  DVI (ANALOG)” on LT156] → Video 
PC Card Viewer ← S-Video ←
If no input signal is present, the input will be skipped.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 fre-
quencies that eliminate the horizontal banding in the image. This func-
tion also adjusts the clock phase to reduce video noise, dot interfer-
ence 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: The Auto Adjust function does not work for component signal.
Basic Operation
Selecting the computer or video source:
Optimizing RGB image automatically
Press the Auto Adjust button to optimize an RGB image automatically.
SOURCE
AUTO
ADJUST
HELPPOINTERPC CARDAUTO ADJ.
VIDEO S-
VIDEO
RGB 1 RGB  2
P
J
SOURCE
AUTO
ADJUST
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASERRGB 2 PJ
ON OFF
On LT156:
Press the RGB 1 button on the remote control to select DVI digital
signal and the RGB 2 button for DVI analog signal.