NEC Lt157 Lcd Projector Users Manual

							E – 7
MENU
ENTERCANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
Getting to Know Your LT158/LT157 Projector
Zoom leverRemote Sensor
Lens capAdjustable Tilt FootLens
Ventilation (inlet)
Air FilterControls
Front/Side Features
One-touch Tilt Button
Built-In Monaural Speaker (0.5W)
Focus ring
Attaching the lens cap to the bottom with the supplied string and rivet
1. Thread the string through the hole on the
lens cap and then tie a knot in the string.2. Use the rivet to attach the string to the bottom of the projector. 
						

							E – 8
MENU
ENTERCANCELS
E
L
E
C
T
P
O
W
E
R S
T
A
T
U
S O
N
/S
T
A
N
D
 B
Y
S
O
U
R
C
E
A
U
T
O 
A
D
J
U
S
T
P
C
  C
A
R
D
 
A
C
C
E
S
S
AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
AC Input
Connect the supplied power cable’s three-
pin plug here.
Terminal Panel
Slot for Kensington Micro
saver Security System
Rear/Side Features
Rear FootRemote SensorVentilation (inlet)
Ventilation (outlet)
Bottom
Lamp cover
Lamp cover screwRear Foot
Rotate to fine-adjust horizontally
position
Spacer (black rubber)
To fine-adjust the height of the
rear foot, remove the spacer
and rotate the rear foot to the
desired height. 
						

							E – 9
1. Menu Button
Displays the menu.
2. Select 
 
  / Volume (+) (-) Buttons

: Use these buttons to select the menu of the item you wish to
adjust.
When no menus appear, these buttons work as a volume con-
trol.
 : Use these buttons to change the level of a selected menu item.
A press of the  button executes the selection.
When the menus or the Viewer tool bar is not displayed, these
buttons can be used to select a slide, or to move the cursor in
Folder List or Slide List.
When the pointer is displayed, these 
 
  buttons move the pointer.
3. Enter Button
Executes your menu selection and activates items selected from the
menu.
4. Cancel Button
Press this button to exit "Menus". Press this button to return the adjust-
ments to the last condition while you are in the adjustment or setting
menu.
5. Source Button
Use this button to select a video source such as a PC, VCR, DVD
player or PC Card Viewer (CompactFlash card).
Each time this button is pressed, the input source will change as fol-
lows:
→ RGB [“DVI (DIGITAL) →  DVI (ANALOG)” on LT158] → Video 
PC Card Viewer ← S-Video ←
If no input signal is present, the input will be skipped.
Top Features
6. Auto Adjust Button (RGB only)
Use this button to adjust Position-H/V and Pixel Clock/Phase for an
optimal picture. Some signals may not be displayed correctly or take
time to switch between sources.
7. Power Button (ON / STAND BY)
Use this button to turn the power on and off when the power is sup-
plied and the projector is in standby mode.
NOTE: To turn off the projector, press and hold this button for a minimum oftwo seconds.
8. PC Card Access Indicator
Lights while accessing a CompactFlash memory card.
9. Status Indicator
When this is lit red continually, it's warning you that the projection lamp
has exceeded 1500 hours (2500 hours in Eco mode) of service. After
this light appears, it is advisable to replace the projection lamp as soon
as possible. (See page E-48). In addition the message "The lamp has
reached the end of its usable life. Please replace the lamp." appears
continually until the lamp is replaced.
If this light blinks red rapidly, it indicates that the lamp cover is not
attached properly or the projector is overheated.
See the Power / Status Light Messages on page E-50 for more details.
10. Power Indicator ( 
 )
When this indicator is green, the projector is on; when the indicator is
orange, it is in standby mode.
MENU
ENTER
CANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO  
ADJUST
PC  CARD 
ACCESSC CARD
PC CONTROLVIDEO
USBSV
9 8
7 6 5
10 3 24
1 
						

							E – 10
Terminal Panel Features
MENU
ENTER
CANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
9
10 8
7
6
5
4
3
2
1
EO
DVI-DS-VIDEO
AUDIO
LT158
Slot for Kensington
MicroSaver Security System
1. Audio Input Mini Jack (3.5 mm ∅)
This is where you connect audio output from your computer, VCR,
DVD player or laser disc player.
A commercially available audio cable is required.
2. RGB Input/ Component Input Connector (Mini D-Sub 15 pin)
Connect your PC or other RGB equipment. Use the supplied RGB
cable to connect to a PC. Or connect a Macintosh computer here using
the supplied RGB cable. This also serves as a component input con-
nector that allows you to connect a component video output of compo-
nent equipment such as a DVD player (optional cable required).
For LT158: DVI Connector (DVI 29-pin)
This connector can accept a digital or analog signal input from a com-
puter with a DVI connector.
If you connect a mini D-sub 15 pin connector of a computer, attach the
supplied DVI-A–VGA adapter to this connector.
3. S-Video Input (Mini DIN 4 Pin)
Here is where you connect the S-Video input from an external source
like a VCR.
NOTE: S-Video provides more vivid color and higher resolution than the tradi-tional composite video format.
4. Video Input (RCA)
Connect a VCR, DVD player, laser disc player, or document camera
here to project video.
5. PC Control Port (Mini DIN 8 Pin)
Use this port to connect your PC to control your projector via a serial
cable. This enables you to use your PC and serial communication pro-
tocol to control the projector. The NEC optional serial cable is required
to use this port. Also PC Control Utility 1.0 included in the supplied CD-
ROM must be installed on your PC.
If you are writing your own program, typical PC control codes are on
page E-56.
A cap is put on the port at the factory. Remove the cap when using the
port.6 USB Terminal
Connect a commercially available mouse that supports USB. You can
operate the menu or PC Card Viewer with the USB mouse via this
terminal.
Note that this terminal is not used with a computer and that there may
be some brands of USB mouse that the projector does not support.
7. PC Card Eject Button
Press to eject a CompactFlash memory card.
8. PC Card Slot
Inser t a CompactFlash memory card here.
9. AC Input
Connect the supplied power cable's three-pin plug here. When you
plug the other end into an active wall outlet, the POWER indicator turns
orange and the projector is in standby mode.
10 Built-in Security Slot ( 
 )
This security slot supports the MicroSaver® Security System.
MicroSaver® is a registered trademark of Kensington Microware Inc.
The logo is trademarked and owned by Kensington Microware Inc. 
						

							E – 11
4. LED
Flashes when any button is pressed.
5. Power ON Button
If the main power is applied, you can use this button to turn your pro-
jector on.
P
JF
O
C
U
SZ
O
O
M
V
O
L
.S
H
IF
T
H
E
L
PPOINTERKEYSTONEMAGNIFY
FREEZE
PIC-MUTEPC CARDS
L
ID
EFOLDER
SLIDEL
IS
T
O
F
F
V
ID
E
O
A
U
T
O
 A
D
J
.S
-V
ID
E
OR
G
B
1R
G
B
2
L
A
S
E
R O
NP
O
W
E
R
SELECT
3
21
Remote Control Features
NOTE: If you are using a Macintosh computer, you can click either the right-click or left-click button to activate the mouse.
1. Infrared Transmitter
Direct the remote control toward the remote sensor on the projector
cabinet.
2. Laser Pointer
Beams a laser light when "Laser" button is pressed.
3. Remote Jack
Not available on this model.
MENU
ENTERCANCEL
PJ
OFF
VIDEO
AUTO ADJ.
S-VIDEO RGB1 RGB2
LASERON
SELECT
POWER
6
8
7
11
13
1545
9
1
0
12
14
16
6. Power OFF Button
If the main power is applied, you can use this button to turn your pro-
jector off.
NOTE: To turn off the projector, press and hold the POWER OFF button for aminimum of two seconds.
7. VIDEO Button
Press this button to select an NTSC, PAL, SECAM or NTSC4.43 com-
patible video source from a VCR, DVD player, laser disc player or docu-
ment camera.
8. S-VIDEO Button
Press this button to select an S-Video source from a VCR.
9. RGB 1 Button
Press this button to select a video source from a computer or compo-
nent equipment connected to your RGB port (DVI digital on LT158).
10. RGB 2 Button
Not available on the LT157.
For LT158:
Press this button to select a DVI analog signal from a computer.
11. AUTO ADJ Button
Use this button to adjust an RGB source for an optimal picture. Some
signals may not be displayed correctly or take time to switch between
sources.
12. LASER Button
Press and hold this button to activate the laser pointer. When lit, you
can use the laser to draw your audience's attention to a red dot that
you can place on any object.
13. MENU Button
Displays the menu for various settings and adjustments.
14. SELECT (

 ) (Mouse) Button
When you are in the Computer mode, these buttons work as a com-
puter mouse.
When you are in the Projector mode, which is indicated by lighting the
PJ button:

: Use these buttons to select the menu of the item you wish to
adjust.
 : Use these buttons to change the level of a selected menu item.
A press of the  button executes the selection.
When the pointer is displayed, these 
  buttons move the pointer.
15. ENTER (Left Click) Button
When you are in the Computer mode, this button works as the mouse
left button.
When this button is pressed and held for a minimum of 1.5 seconds,
the drag mode is set.
When you are in the Projector mode, which is indicated by lighting the
PJ button:
Use this button to enter your menu selection. It works the same way as
the "Enter" button on the cabinet.
16. CANCEL (Right Click) Button
When you are in the Computer mode, this button works as the mouse
right button.
When you are in the Projector mode, which is indicated by lighting the
PJ button:
Press this button to exit "Menus". It works the same way as the “Can-
cel” button on the cabinet. 
						

							E – 12
PJ
FOCUS ZOOM
VOLUME
SHIFT
HELP
POINTER
KEYSTONEMAGNIFY
FREEZE
PIC-MUTEPC CARDSLIDE
FOLDER
SLIDE
LIST
17
19
20
28
29
30
31 22
18
21
23
24
25
26
27
17. PJ Button
Press this button to switch the Select, Cancel, and Enter buttons be-
tween the Projector mode (lit red) and the Computer mode. Press this
button or any one of the Power ON/OFF, Menu, Help, Pointer, Magnify,
PC Card, Folder List or Slide List buttons to switch to the Projector
mode and the PJ button lights red. To switch back to the Computer
mode, press the PJ button again.
18. FOCUS Button
Not available on this model.
19. ZOOM Button
Not available on this model.
20. SHIFT Button
Not available on this model.
21. HELP Button
Provides information about operation and adjustment procedures or
the set information for the current menu or adjustment during menu
operation.
22. POINTER Button
Press this button to display one of the eight pointers; press again to
hide the pointer. You can move your pointer icon to the area you want
on the screen using the Select button.
23. KEYSTONE (+) (–) Button
Press the (+) or (–) button to correct the keystone (trapezoidal) distor-
tion, and make the image square.24. MAGNIFY (+) (–) Button
Use this button to adjust the image size up to 400%.
When the pointer is displayed, the image is magnified about the center
of the pointer. When the pointer is not displayed, the image is magni-
fied about the center of the screen.
When the image is magnified, the pointer is changed to the magnifying
icon.
25. FREEZE Button
This button will freeze a picture. Press again to resume motion.
26. PICTURE MUTE Button
This button turns off the image and sound for a short period of time.
Press again to restore the image and sound.
NOTE: When the menu is displayed, a press of this button mutes an
image and sound without turning off the menu.
27. VOLUME (+) (–) Button
Press (+) to increase the volume and (–) to decrease it.
28. PC CARD Button
Press this button to select the PC Card Viewer source.
29. SLIDE (+) (–) Button
Press (+) to select the next folder or slide and (–) to select the previous
folder or slide.
30. FOLDER LIST Button
Press this button to select PC Card Viewer source to display a list of
folders included in a CompactFlash card.
31. SLIDE LIST Button
Press this button to select PC Card Viewer source to display a list of
slides included in a CompactFlash card.
*NOTE: The default is the Computer mode, which allows you to use the Select,
Cancel, and Enter buttons as your computer mouse. When the POWER ON/
OFF, MENU, HELP, POINTER, MAGNIFY, PC CARD, FOLDER LIST, or SLIDE
LIST button is pressed, the PJ button lights red to indicate that you are in the
Projector mode. If no buttons are pressed within 10 seconds, the light goes out
and the Projector mode is canceled. 
						

							E – 13
30˚7m
7m
30˚30˚
30˚
MENUENTERCANCELSELECT
POWERSTATUS ON/STAND BYSOURCE
AUTO  
ADJUST
PC  CARD 
ACCESS
Operating Range
Remote Control Battery Installation
1. Press firmly and slide the battery cover off.
2. Remove both old batteries and install new ones (AA). Ensure that
you have the batteries polarity (+/–) aligned correctly.
3. Slip the cover back over the batteries until it snaps into place.
Do not mix different types of batteries or new and old batteries.
Note on Remote Control Operation:
Pressing and holding the Select (
, , 
, )/ Mouse button while
installing new batteries may cause malfunction or no operation.
Should this happen, remove the batteries and then install them again
without touching the Select/Mouse button.
Remote Control Precautions
•Handle the remote control carefully.
•If the remote control gets wet, wipe it dry immediately.
•Avoid excessive heat and humidity.
•If you will not be using the remote control for a long time, remove the
batteries.
•Do not place the batteries upside down.
•Do not look into the laser pointer while it is on.
•Do not point the laser beam at a person.
Setting the function switch
ON OFF
There are two switches on the bottom of the battery case: an appli-
cable projector selector switch (1) and laser enable/disable switch (2).
Check the projector being used and decide whether to enable or dis-
able 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)  [Fac-
tory 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
accessible to children. 
						

							E – 14
Using Remote Mouse ReceiverThe remote mouse receiver enables you to operate your computer’s mouse functions from the remote control (Computer mode). It is a great
convenience for clicking through your computer-generated presentations.To return to the Projector mode, press the PJ button (lit red).
Connecting the remote mouse receiver to your computerIf you wish to use the remote mouse function, connect the mouse receiver and computer.
The mouse receiver can be connected directly to the computer using the USB terminal.
To connect it to the computer using the mouse (PS/2) terminal, do so using the PS/2 adapter.
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.
When connecting using the USB terminalFor PC, the mouse receiver can only be used with a Windows 98,
Windows ME or Windows 2000 operating system.
NOTE:
•Wait at least 5 seconds after disconnecting the mouse receiver before re-
connecting it and vice versa. The computer may not identify the mouse re-
ceiver if it is repeatedly connected and disconnected in rapid intervals.
•When using the PS/2 adapter, be sure to attach the PS/2 adapter to the
remote mouse receiver first. Do not connect or disconnect the USB connec-
tor of the remote mouse receiver with the PS/2 adapter on the mouse (PS/2)
port of your PC. Doing so can result in your PC failing to detect the remote
mouse receiver.
Computer
To USB port of PC or
Macintosh
To Mouse (PS/2)
 Atach the supplied
PS/2 Adapter
Remote mouse receiver
port of PC
Remote sensor on the
remote mouse
receiver
7m
30˚
30˚
When operating a computer via the remote mouse receiver 
						

							E – 15
Switching operation mode between computer and projectorThe three shaded buttons shown on the drawing work as a computer mouse in the Computer mode.
In the Computer mode the PJ button is not lit.
•When the MENU button is pressed, the PJ button lights red to indicate that you are in the Projector mode, which allows the projector menu
operation using the three buttons.
•When the POINTER button is pressed, the PJ button lights red to indicate that you are in the Projector mode and that the SELECT 
, ,
 ,  button works as a moving button for the POINTER or magnified image.
•If no buttons are pressed within 10 seconds, the PJ button's light goes out to indicate that you are in the Computer mode. To enable the projector
menu operation again, press the PJ button to light red. To move the pointer or a magnified image again, turn off the pointer and then turn on the
pointer (press the POINTER button two times).
•When the PJ button is lit, if you want to use the mouse function immediately, press the PJ button to return to the Computer mode (not lit).
Works as the Select
button on the projector.
MENU
ENTERCANCEL
PJ
FOCUS ZOOM OFF
VIDEO
AUTO ADJ.
S-VIDEO RGB1 RGB2
LASERON
VOLUME
SHIFT
HELP
POINTER
KEYSTONEMAGNIFY
FREEZE
PIC-MUTEPC CARDSLIDE
FOLDER
SLIDE
LIST
SELECT
POWER
MENU
ENTERCANCEL
FOCUS ZOOM OFF
VIDEO
AUTO ADJ.
S-VIDEO RGB1 RGB2
LASERON
VOLUME
SHIFT
HELP
POINTER
KEYSTONEMAGNIFY
FREEZE
PIC-MUTEPC CARDSLIDE
FOLDER
SLIDE
LIST
SELECT
POWER
PJ
Not lit Works as a mouse for your
computer.
Works as a right-click button
for your computer.
Works as a left-click button for
your computer.
Lit red
Works as the Enter
button on the projector. Works as the Cancel
button on the projector.
During Computer mode:
During Computer mode by pressing the ENTER button for 1.5 sec-
onds or more then releasing, the drag mode is set and the drag opera-
tion can be performed simply by pressing the SELECT (
, , 
, )
(mouse) button. To cancel the drag mode, press the ENTER (left click)
button again or press the CANCEL (right click) button. 
						

							E – 16
2. INSTALLATION
This section describes how to set up your LT158/LT157 projector and how to connect video and audio sources.
Setting up Your ProjectorYour LT158/LT157 Projector is simple to set up and use. But before you get started, you must first:
1. Determine the image size.
2. Set up a screen or select a non-glossy white wall onto which you can project your image.
Ensure that the power cable and any other cables connecting to video sources are disconnected before moving the projector.
When moving the projector or when it is not in use, cover the lens with the lens cap.
Selecting a Location
The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is approximately 25" (0.6 m)
measured diagonally when the projector is roughly 3.9 feet (1.2 m) from the wall or screen. The largest the image can be is 300" (7.6 m) when the
projector is about 40.4 feet (12.3 m) from the wall or screen.
Screen and Projection Distance
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation.
Throw distance
Screen size (Unit: cm / inch)
S
creen
81.3 (W) X 61.0 (H) / 32 (W) X 24 (H)
61.0 (W) X 45.7 (H) / 24 (W) X 18 (H)
TELE: 25"
50.8 (W) X 38.1 (H) / 20 (W) X 15 (H)
Lens center
121.9 (W) X 91.4 (H) / 48 (W) X 36 (H)
60"
162.6 (W) X 121.9 (H) / 64 (W) X 48 (H)
80"
203.2 (W) X 152.4 (H) / 80 (W) X 60 (H)
100"
243.8 (W) X 182.9 (H) / 96 (W) X 72 (H)
120"
304.8 (W) X 228.6 (H) / 120 (W) X 90 (H)
150"
406.4 (W) X 304.8 (H) / 160 (W) X 120 (H)
200"
487.7 (W) X 365.8 (H) / 192 (W) X 144 (H)
240"
40"27"
569.0 (W) X 426.7 (H) / 224 (W) X 168 (H)WIDE: 300"
609.6 (W) X 457.2 (H) / 240 (W) X 180 (H)280"
1
.2/3
.9
1
.7
/5
.62.6/8.53.6/11.84.5/14.85.4/17.7
6.7/22.0
9.0/29.510.8/35.4
12.3/40.4
Distance (Unit : m / feet)