NEC Lt180 Portable Projector Users Manual

							E-4
Top Features
LAMP
STATUS
POWERSOURCE
AUTOADJ.ON/STAND BY
SELECT
3
24
5
87
16910
1. INTRODUCTION
1. ON/STAND BY button (  )
Use this button to turn the power on and off when the main power is supplied and the projector is in standby
mode.
To turn on the projector, press and hold this button for a minimum of two seconds. To turn off the projector,
press this button twice.
2. POWER indicator (LED) When this indicator is green, the projector is on; when this indicator i\
s orange, it is in standby mode. See the
power Indicator section on page  E-48 for more details.
3. STATUS indicator (LED) If this light blinks red rapidly, it indicates that an error has occurred, the lamp cover is not attache\
d properly or
the projector has overheated. If this light remains orange, it indicates\
 that you have pressed a cabinet key
while the Cabinet Button is locked. See the Status Indicator section on \
page  E-48 for more details.
4. LAMP indicator (LED) If this light blinks red rapidly, it’s warning you that the lamp has reached the end of its usable life. After this light
appears, replace the lamp as soon as possible (See page  E-44). See the Lamp Indicator section on page  E-
48  for more details.
5. SOURCE button This button will allow you to select a video source such as a PC, VCR or\
 DVD player.
Press and quickly release this button to display the Source list. Each t\
ime this button is pressed, each source
name will be highlighted in sequence. Highlighting a source name for 2 s\
econds without pressing the ENTER
button will display the selected source.
6. AUTO ADJ.  button Use this button to adjust an RGB source for an optimal picture (See pag\
e  E-26).
7. MENU button Displays the menu.
8. SELECT  
 / volume +/- buttons

  : 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. When no m\
enus appear, these buttons
work as a volume control.
9. ENTER button Executes your menu selection and activates items selected from the menu.\
10. EXIT button Pressing this button will return to the previous menu.
While you are in the main menu, pressing this button will close the menu\
. 
						

							E-5
Terminal Panel Features
1. COMPUTER IN / Component Input Connector (Mini D-Sub 15 Pin)
Connect your computer or other analog RGB equipment such as IBM compatible or Macintosh computers.
Use the supplied RGB/VGA cable to connect to your computer. This also serves as a component input con-
nector that allows you to connect a component video output of component equipment such as a DVD player
(optional adapter ADP-CV1 required).
2. AUDIO IN mini jack (Stereo Mini)
This is where you connect the audio output from your computer or DVD player when connected to the COM-
PUTER IN or COMPONENT IN.
3. MONITOR OUT Connector (Mini D-Sub 15 Pin)
You can use this connector to loop your computer image to an external monitor from the RGB input source.
This connector outputs RGB signal in standby mode.
4. AUDIO OUT Mini Jack (Stereo Mini)
You can use this jack to output sound from the currently selected source (COMPUTER, COMPONENT, VIDEO
or S-VIDEO). Output sound level can be adjusted in accordance with the sound level of the internal speaker.
Note that this cannot be used as a headphone jack.  (When audio equipment is connected, the projector
speaker is disabled.)
When a cable mini-plug is inserted into this jack, both the right and left audio signals are not mixed, but
separate.
For example, when a cable mini-plug is inserted into the left AUDIO IN jack only, only left sound is output.
5. COMPONENT IN (Y, Cb/Pb, Cr/Pr) connectors (RCA)
Connect component video outputs (Y/Cb/Cr, Y/Pb/Pr) here from external equipment such as a DVD player.
6. S-VIDEO IN connector (Mini DIN 4 Pin)
Here is where you connect the S-Video output from an external source like a VCR.
NOTE: S-Video provides more vivid color and higher resolution than the traditional composite video format.
7. VIDEO IN connector (RCA)
Connect a VCR, DVD player, laser disc player, or document camera here to project video.
8. AUDIO IN jacks L & R (RCA)
These are your left and right channel audio inputs for stereo sound from a Video or S-Video source.
9. PC CONTROL Port (Mini DIN 8 Pin)
Use this port to connect a PC or control system. This enables you to control the projector using serial commu-
nication protocol. If you are writing your own program, typical PC control codes are on page E-56.
1. INTRODUCTION
PC CONTROL
COMPONENT IN COMPUTER IN
MONITOR OUT
VIDEO IN AUDIO IN AUDIO OUT
S-VIDEO IN
RL
Cr/Pr Cb/Pb
Y
AUDIO IN
96854 13
27 
						

							E-6
VOLUMES-VIDEOVIDEO L-CLICK
ENTEREXIT MENUUP KEYSTONE PAGEOFF
POWERON
PIC-MUTE
DOWN
MOUSER-CLICK
AUTO ADJ.
NOISE RED.
COMPUTER
COMPONENT
ASPECT HELP
FREEZE PICTURE
1
3
4
76
9
2
8
10
11
13
14
16
12
15
22
23
17
18
20
5
19
21
1. INTRODUCTION
1. Infrared Transmitter
Direct the remote control toward the remote sensor on the projector cabinet.
2. POWER ON Button
When the main power is on, you can use this button to turn your projector on.
NOTE: To turn on the projector, press and hold the POWER ON button for a minimum of two seconds.
3. POWER OFF Button
You can use this button to turn your projector off.
NOTE: To turn off the projector, press the POWER OFF button twice.
4. KEYSTONE (+) (–) Button
Press this button to correct the keystone (trapezoidal) distortion, and make the image square. See page E-25.
5. PIC-MUTE Button
This button turns off the image and sound for a short period of time. Press again to restore the image and
sound.
6. PAGE UP/DOWN Button
Not available on this model.
Part Names of the Remote Control 
						

							E-7
1. INTRODUCTION
7. MENU Button
Displays the menu for various settings and adjustments.
8. SELECT 
 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.
9. ENTER Button
Use this button to enter your menu selection. It works the same as the ENTER button on the cabinet. See
page E-4.
10. EXIT Button
It works the same as the EXIT button on the cabinet. See page E-4.
11. MOUSE L-CLICK Button
Not available on this model.
12. MOUSE R-CLICK Button
Not available on this model.
13. VIDEO Button
Press this button to select a video source connected to the VIDEO input.
14. S-VIDEO Button
Press this button to select an S-Video source connected to the S-VIDEO input.
15. COMPUTER Button
Press this button to select a video source from computer or component equipment connected to your COM-
PUTER IN port.
16. COMPONENT Button
Press this button to select a video source from component equipment connected to the COMPONENT input.
17. AUTO ADJ.  Button
Use this button to adjust an RGB source for an optimal picture. See page E-26.
18. NOISE RED. Button
This button will turn on the noise reduction feature to reduce video noise.
19. VOLUME (+) (–) Button
Press (+) to increase the volume and (–) to decrease it.
20. ASPECT Button
Press this button once to display the Aspect Ratio select menu. Continue pressing to change aspect ratios.
See page E-36.
21. PICTURE Button
Press this button to display the Picture menu. Each time this button is pressed, the option will be changed.
See page E-34.
22. HELP Button
Provides the information about the status of the projector.
23. FREEZE Button
This button will freeze a picture. Press again to resume motion. 
						

							E-8
Battery Installation
1Press firmly and slide the battery cover off.
2Remove both old batteries and install new ones
(AAA). Ensure that you have the batteries polarity
(+/–) aligned correctly.
3
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 use new and old batteries together, or use different types of batteries together.
•Dispose of used batteries according to your local regulations.Slip the cover back over the batteries until it snaps
into place. Do not mix different types of batteries or
new and old batteries.
1. INTRODUCTION 
						

							E-9
1. INTRODUCTION
30º
30º
Remote sensor on projector cabinet
Remote control
7m/22 feet
•The infrared signal operates by line-of-sight up to a distance of about 22 feet/7 m and within a 60-degree
angle of the remote sensor on the projector cabinet.
•The projector will not respond if there are objects between the remote control and the sensor, or if strong light
falls on the sensor. Weak batteries will also prevent the remote control from properly operating the projector.
Operating Range for Wireless Remote Control 
						

							E-10
SELECTLAMP
STATUS
POWER
ON/STAND BYAUTO
ADJ.S
O
U
R
C
E
2. INSTALLATION AND CONNECTIONS
Your projector is simple to set up and use. But before you get started, you must first:
1
Set up a screen and the projector.
2Connect your video equipment or computer to the projector. See page E-14 to E-18.
3Connect the supplied power cable. See page E-19.
NOTE: Ensure that the power cable and any other cables are disconnected before moving the projector. When moving theprojector or when it is not in use, cover the lens with the lens cap.
2. INSTALLATION AND CONNECTIONS
This section describes how to set up your projector and how to connect PCs, video and audio sources. 
						

							E-11
Setting Up the Screen and the Projector
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 30 (0.76 m) measured diagonally when the projector is roughly 0.9 m/35 inches from the wall
or screen. The largest the image can be is 200 (5.0 m) when the projector is roughly 6.1 m/241 inches from the
wall or screen. Use the drawing below as a guide.
2. INSTALLATION AND CONNECTIONS
406.4(W)X304.8(H)/160(W)X120(H)
365.8(W)X274.3(H)/144(W)X108(H)
304.8(W)X228.6(H)/120(W)X90(H)
243.8(W)X182.9(H)/96(W)X72(H)
203.2(W)X152.4(H)/80(W)X60(H)
162.6(W)X121.9(H)/64(W)X48(H)
121.9(W)X91.4(H)/48(W)X36(H)
81.3(W)X61.0(H)/32(W)X24(H)101.6(W)X76.2(H)/40(W)X30(H)
61.0(W)X45.7(H)/24(W)X18(H)
Lens center
Screen Size
1.2/46.71.5/58.91.8/71.02.4/95.43.0/119.7
3.7/144.0
4.6/180.5
5.5/217.0
0.9/34.5
200
180
150
120
100
80
60
4050
30
Screen size (Unit: cm/inch)
6.1/241.3
Distance (Unit: m/inch)
NOTE: The distances are indicated by intermediate values between tele and wide. Use as a rule of thumb. 
						

							E-12
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and bottom of screen for desktop (top of screen for ceiling)
α = Throw angle
NOTE: Distances may vary +/-5%.
Throw Distance and Screen Size
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the
position of installation.
Distance Chart
(
B)
(
D)
Screen Bottom Screen HeightScreen Width
Screen Diagonal
Screen center
Throw Distance (C)
Throw Angle (α)
Lens Center
2. INSTALLATION AND CONNECTIONS
α Screen Size (4:3) B CDiagonal Width Heightwide tele wide tele wide tele
mm
762.0
1016.0
1270.0
1524.0
1701.8
1828.8
2133.6
2286.0
2540.0
3048.0
3810.0
4572.0
5080.0inch
18.0
24.0
30.0
36.0
40.2
43.2
50.4
54.0
60.0
72.0
90.0
108.0
120.0mm457.2
609.6
762.0
914.4
1021.1
1097.3
1280.2
1371.6
1524.0
1828.8
2286.0
2743.2
3048.0inch
7.1
9.5
11.9
14.3
15.9
17.1
20.0
21.4
23.8
28.5
35.7
42.8
47.6mm181.4
241.8
302.2
362.6
404.9
435.1
507.6
543.8
604.2
725.0
906.2
1087.4
1208.2inch
7.2
9.6
11.9
14.3
16.0
17.2
20.1
21.5
23.9
28.7
35.8
43.0
47.8mm182.1
242.8
303.5
364.2
406.7
437.1
509.9
546.3
607.0
728.4
910.5
1092.6
1214.0inch
31.4
42.5
53.6
64.8
72.5
78.1
91.5
98.1
109.2
131.5
164.8
198.2
220.4mm797.7
1080.1
1362.6
1645.0
1842.7
1984.0
2322.9
2492.4
2774.8
3339.7
4187.1
5034.4
5599.3inch
37.7
50.9
64.1
77.3
86.5
93.1
109.0
116.9
130.1
156.5
196.1
235.8
262.2mm957.2
1292.6
1628.0
1963.4
2198.2
2365.9
2768.3
2969.6
3305.0
3975.8
4982.0
5988.2
6658.9degree12.8
12.6
12.5
12.4
12.4
12.4
12.3
12.3
12.3
12.3
12.2
12.2
12.2degree10.8
10.6
10.6
10.5
10.5
10.5
10.4
10.4
10.4
10.4
10.4
10.3
10.3
D
wide tele
inch
30
40
50
60
67
72
84
90
100
120
150
180
200mm609.6
812.8
1016.0
1219.2
1361.4
1463.0
1706.9
1828.8
2032.0
2438.4
3048.0
3657.6
4064.0inch
24.0
32.0
40.0
48.0
53.6
57.6
67.2
72.0
80.0
96.0
120.0
144.0
160.0inch
-1.8
-2.4
-3.0
-3.6
-4.0
-4.3
-5.0
-5.3
-5.9
-7.1
-8.9
-10.7
-11.9mm
-45.2
-60.2
-75.3
-90.3
-100.9
-108.4
-126.4
-135.5
-150.5
-180.6
-225.7
-270.9
-301.0inch
-1.8
-2.4
-3.0
-3.6
-4.0
-4.3
-5.0
-5.4
-6.0
-7.2
-8.9
-10.7
-11.9mm
-45.5
-60.2
-75.8
-90.9
-101.5
-109.1
-127.3
-136.4
-151.5
-181.8
-227.3
-272.7
-303.0 
						

							E-13
2. INSTALLATION AND CONNECTIONS
WARNING
* Installing your projector on the ceiling must be done by a qualified technician. Contact your NEC
dealer for more information.
* Do not attempt to install the projector yourself.
•Only use your projector on a solid, level surface. If the projector falls to the ground, you can be injured and the
projector severely damaged.
•Do not use the projector where temperatures vary greatly. The projector must be used at temperatures be-
tween 41˚F (5˚C) and 95˚F (35˚C).
•Do not expose the projector to moisture, dust, or smoke. This will harm the screen image.
•Ensure that you have adequate ventilation around your projector so heat can dissipate. Do not cover the
vents on the side or the front of the projector.
Rear Projection Applications
The projector has the ability to be used in a rear projection application.  When used with a third party mirror and
frame system, rear projection allows you to achieve a larger image size in less distance than a traditional front
projection installation.  If space constraints exist, please contact your authorized NEC reseller regarding a rear
projection solution.  Refer to page E-38 on how to change the projector orientation for use in a rear projection
application.