NEC Lt140 Ultra-portable Projector Users Manual

							EÐ31 Deleting Captured Images
Uninstalling the PC Card Viewer Software
Even if you do now know the PC Card Viewer softwares file names
or where they are stored, the PC Card Viewer software files can be
easily removed from the system using the Install/Uninstall Applica-
tions control panel in Windows 95.  (Normally there is no need to
perform this operation.)
Uninstalling the software
Use the procedure described below to uninstall the PC Card Viewer
software files.
1. From the Start menu, select Settings then Control Panels.
Drag
Prev
Next
Play/Stop
Jump
Select
DeleteView
Using the Delete button on the tool bar for PC Card Viewer can de-
lete captured images.
To delete captured images:
1) Select PC Card Viewer.
2) Use © button to select the Capture folder in the right bottom of
the screen.
3) Press the MENU button to display the tool bar.
4) Use the § or © button to select the Delete icon and press the
ENTER button or  click with a mouse button.
Viewing Digital Images
Digital images can be played with the PC Card Viewer if the follow-
ing conditions are met:
¥ If the image can be stored on an MS-DOS format CompactFlash
card
¥ If the image can be stored in a format supported by the PC Card
Viewer.
With the PC Card Viewer, images on the card are searched for in
directories and images in JPEG or BMP format are recognized
as slides.
Searchable directories are directories within two steps from the
root directory, and searchable images are images within the first
12 files in the directory.  Only file and slide switching are pos-
sible.
NOTE:
¥ The maximum number of images recognized as slides within one
directory is 128.
2. In the Control Panels dialog box, double-click on Add/Remove
Programs.
3. In the Add/Remove Programs Properties dialog box, click the
Setup/Remove tab, then select PC Card Viewer Utility 1.0 from
the list of applications and click on Add/Remove.
4. In the Confirm File Deletion dialog box, click Yes.
5. Once the application is uninstalled, click on OK in the Re-
move Program From Your Computer dialog box. 
						

							EÐ32
This is the name of a card currently being standardized by the Japan Electronic Industry Association (JEIDA) and
PCMCIA (Personal Computer Memory Card Interface Association) of the United States.
A type of PC card.  ATA was originally a type of interface between computers and fixed disk devices.  The ATA card
is a standard card-type recording medium.
CompactFlash card is a small removable card conforming to ATA specifications. It is one-fourth the volume of a
PCMCIA card.
PCMCIA 2.1 PC cards are divided into three types according to their thickness:  Type I (3.3 mm), Type II (5.0 mm)
and Type III (10.5 mm).
A type of image format.  The standard Windows Bit Map format used for MS-DOS/Windows-compatible comput-
ers.
A type of image format.  JPEG is the abbreviation of Joint Photographic Experts Group.  JPEG compression offers
efficient data storage.  The data not required for displaying the image is identified and deleted.  Since the data is
deleted, JPEG algorithms are said to be irreversible.  This means that once the image is compressed, the decom-
pressed image it is not the same as the original image. PC card
ATA card
CompactFlash
TYPE (I, II and III)
BMP
JPEG
Terminology 
						

							EÐ33
4. MAINTENANCE
This section describes the simple maintenance procedures you should
follow to replace the lamp, and replace the coin cell in the remote
control.
Replacing The  Lamp
After your lamp has been operating for 1000 hours or longer, the
ÒStatusÓ light in the cabinet will go on. Even though the lamp may
still be working, replace it at 1000 hours to maintain optimal projec-
tor performance.
CAUTION
¥ DO NOT TOUCH THE LAMP immediately after it has been
used. It will be extremely hot. Turn off the power to the pro-
jector and disconnect the power cable. Allow at least one hour
for the lamp to cool before handling.
¥ DO NOT REMOVE ANY SCREWS except the lamp cover
screw and three lamp case screws. You could receive an elec-
tric shock.
¥ The projector will turn off and go into stand by mode after
1100 hours of service. If this happens, be sure to replace the
lamp. If you continue to use the lamp after 1000 hours of use,
the lamp bulb may shatter, and pieces of glass may be scat-
tered in the lamp case. Do not touch them as the pieces of
glass may cause injury. If this happens, contact your NEC
dealer for lamp replacement.
To replace the lamp:
1. Loosen the lamp cover screw until the screwdriver goes into a free-
wheeling condition and remove the lamp cover. The lamp cover
screw is not removable.
2. Loosen the three screws securing the lamp housing until the screw-
driver goes into a freewheeling condition. The three screws are
not removable.
3. Remove the lamp housing by pulling out the handle.4. Insert a new lamp housing until the lamp housing is plugged into
the socket.
5. Secure it in place with the three screws.
  Be sure to tighten the three screws.
CAUTION: Do not use a lamp other than the NEC replace-
ment lamp (LT40LP).
Order this from your NEC dealer.
6. Reattach the lamp cover.
7. Tighten the lamp cover screw.
    Be sure to tighten the lamp cover screw.
8. After you install a new lamp, select [Main Menu] ® [Projector
Options] ® [Setup]®[Page 2]®[Clear Lamp Hour Meter] to re-
set the lamp usage hours.
If the projector will not turn on after 1100 hours of service, press
and hold the ÒHelpÓ button on the remote control for ten seconds
or longer to reset the lamp time clock to zero.
NOTE: There is an interlock on this case to prevent the risk of elec-
trical shock. Do not attempt to circumvent this interlock. 
						

							EÐ34
MnO2-LiCELL3VOLTSJAPANH
CR2025
MnO2-LiCELL3VOLTSJAPANHCR2025
MnO2-LiCELL3VOLTSJAPANHCR2025
Remote Control Battery Installation
[Wireless Card Remote Control (supplied)]
1. Press firmly and slide the battery cover off.
2. Remove the old Lithium coin cell and install new one (CR2025).
Ensure that the side with a Ò+Ó is upward.
3. Put the cover back.[Full Function Remote Control LT40RT (optional)]
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 (+/Ð) aligned correctly.
3. Slip the cover back over the batteries until it snaps into place.
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Operating Range
[Wireless Card Remote Control (supplied)][Full Function Remote Control LT40RT (optional)]
15˚5m
3m
15˚15˚ 5m
3m
15˚30˚
7m7m
30
˚
30˚
30˚ 
						

							EÐ35
5. TROUBLESHOOTING
This section helps you resolve problems you may encounter while setting up or using the projector.
OFF
On continually
Blinking very rapidly (On
and off in a cycle of 1 sec.)
Blinking rapidly (On and off
in a cycle of 4 sec)
Blinking slowly  (On and off
in a cycle of 8 sec.)
Blinking very slowly  (On
and off in a cycle of 12 sec.)
Status Light Messages
Common Problems & Solutions
Condition Status
¥ Normal
¥ The projector lamp has exceeded 1000 hours of operation and should be replaced.
¥ The lamp cover is not fastened properly. Check and reattach it if necessary.
¥ The temperature protector has been triggered. If the room temperature is high, move the projector to a
cooler location. If the temperature inside the projector is high, check the cooling fan hole on the bottom of
the projector. If the hole is blocked, remove whatever is blocking it.
¥ The cooling fan has stopped. Contact your NEC dealer for service.
¥ The lamp is not turned on.
The projector was turned off and back on too quickly. Turn off the projector, wait one minute, then turn the
projector back on. Or the lamp is burnt out.
Does not turn on
No picture
Image isnÕt square to the
screen
Picture is blurred
Image is scrolling verti-
cally, horizontally or both
Remote control does not
work
Status indicator is lit or
blinking
Cross color in RGB mode¥ Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
control is on.
¥ Ensure that the lamp cover is installed correctly. See page E-33.
¥ Check to see if the projector has overheated or the lamp usage exceeds 1100 hours. If there is insufficient
ventilation around the projector or if the room where youÕre presenting is particularly warm, move the
projector to a cooler location.
¥ Use the menu to select your source (Video, S-Video, RGB or PC Card Viewer). See page E-20.
¥ Ensure your cables are connected properly.
¥ Use menus to adjust the brightness and contrast. See page E-20
¥ Remove the lens cap.
¥ Reset the settings or adjustments to factory preset levels using the Factory Default in the Adjustment
Menu. See page E-21
¥ Reposition the projector to improve its angle to the screen. See page E-12
¥ Use the Keystone in the Adjustment Menu to correct the trapezoid distortion. See page E-21
¥ Adjust the focus. See page E-12 or E-17.
¥ Reposition the projector to improve its angle to the screen. See page E-12
¥ Ensure that the distance between the projector and screen is within the adjustment range of the lens. See
page E-13
¥ Use menus or Source button on the remote control or the cabinet to select the source you want to input.
¥ Check the card remote control. If the insulation tape remains, remove it. See page E-10.
¥ Install a new battery. See page E-34.
¥ Make sure there are no obstacles between you and the projector.
¥ Stand within 10 Ð 17 feet (3 Ð 5 m) of the projector. See page E-34.
¥ See the Status Light messages above.
¥ If Auto Adjust is off, turn it on. If Auto Adjust is on, turn it off and balance the image with the Position and
Pixel Adjust in the Adjustments Menu. See page E-21.
Problem Check These  Items 
						

							EÐ36
¥ Is ÒPC Card ViewerÓ selected from the Source menu?
¥ Is the CompactFlash memory card seated in the PC CARD ACCESS slot completely?
¥ Are slide data stored in the CompactFlash memory card?
¥ Have the contents of the CompactFlash memory card been destroyed?
¥ While an image with over 10242768 dots is projected, several lines of information will be lost. Use the
supplied software change the image to 10242768 dots in size.
¥ Areas of slides exceeding 10242768 (LT84: 8002600 dots)  cannot be displayed.  Use the PC Card
Viewer software, etc., to change the image size to 10242768 dots (LT84: 8002600 dots).
In addition, the displayable image size differs according to the resolution of the projector.  Use the PC Card
Viewer software, etc., to change the image size.
Note that on LT84 JPEG images exceeding 8002600 dots are scaled down to three-quarters of its original
size. Example: a JPEG image exceeding 10242768 dots is displayed in 768 (=102423/4)2576 (=76823/
4) dots.
¥ Use a computer, etc., to repair the data.
Problem Check These  Items
When using the PC Card Viewer function
For more information contact your dealer.No picture
Part of a slide is not displayed
Contents of CompactFlash
Card are damaged 
						

							EÐ37
6. SPECIFICATIONS
This section provides technical information about the MultiSync LT84/LT140  ProjectorÕs performance.
Model Number LT84 / LT84G / LT140 / LT140G
Optical
DMDTMSingle Chip Digital Micromirror Device(DMDTM), 800x600 dots (LT84) / 1024x768 dots (LT140)
Lens Manual zoom, manual focus
LT84   : F3.0 Ð 3.3  f = 28 Ð 33 mm
LT140 : F2.7 Ð 3.0  f = 35 Ð 42 mm
Lamp 120 W P-VIP lamp
Image Size 25 Ð 300 inches (612.5 Ð 7620 mm) diagonal
Projection Distance 3.9 - 40 ft (1.2 - 12.2 m)
Electrical
Inputs Video (NTSC / PAL / PAL60 / SECAM / NTSC4.43)
Horizontal Frequency : 15 Ð 85 kHz (RGB : 24 kHz or over)
Ver tical Frequency : 50 Ð 85 Hz
Video Bandwidth RGB: 80 MHz
Color Reproduction Full color, 16.7 million colors simultaneously.
Horizontal Resolution 500 TV lines : NTSC / PAL / YCbCr
300 TV lines : SECAM
RGB LT84 : 800 dots horizontal, 600 dots vertical
LT140 : 1024 dots horizontal, 768 dots vertical
Power Requirement 100 Ð 120 / 200 Ð 240 VAC, 50 / 60 Hz
Input Current 2.1 A (100 Ð 120 VAC) / 1.0A (200 Ð 240 VAC)
Mechanical
Dimensions 9.3 (W)22.3 (H)211.6 (D) / 235mm (W)258mm (H)2294mm (D) (not including protrusions)
Net Weight LT84: 5.5 lbs / 2.5 kg, LT140: 5.7 lbs / 2.6 kg
Environmental ConsiderationsOperational Temperatures: 41û to 95ûF (5û to 35ûC), 30 to 85% humidity
Storage Temperatures: 14û to 140ûF (-10û to 60ûC), 30 to 85% humidity
Regulations UL Approved (UL 1950, CSA 950)
Meets DOC Canada requirements
Meets FCC Class A requirements
Meets AS/NZS3548
Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3)
Meets Low Voltage Directive (EN60950, TUV GS Approved)
Digital Light Proccessing, DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments.
The specifications are subject to change without notice. 
						

							EÐ38
Cabinet Dimensions
LT84
MENU
ENTERCANCEL
SELECT
POWER STATUS
ON
/OFF
SOURCEAUTO ADJUST
2.8 (71)
1.87 (47.6)2.3 (58) 0.5(13)0.35 (9)
11.57 (294)
2.1 (53.5) 9.25 (235)
8.34 (212)
Lens center
Lens center
Unit = inch (mm) 
						

							EÐ39
Cabinet Dimensions
LT140
MENU
ENTERCANCEL
SELECT
POWER STATUS
ON
/OFF
SOURCE AUTO ADJUST
8.34 (212)
3.0 (77)
2.3 (58)1.17 (29.8)
11.57 (294)
1.98 (50.4) 0.5 (13)0.23 (6)
2.1 (53.5) 9.25 (235)
Lens center
Lens center
Unit = inch (mm) 
						

							EÐ40
51423
10
11 12 13 14 156 978
D-Sub Pin Assignments
Mini D-Sub 15 Pin Connector
Pin No. RGB Signal (Analog) YCbCr Signal
1 Red Cr
2 Green or Sync on Green Y
3 Blue Cb
4 Ground
5 Ground
6 Red Ground Cr Ground
7 Green Ground Y Ground
8 Blue Ground Cb Ground
9 No Connection
10 Sync Signal Ground
11 Ground
12 Bi-directional DATA (SDA)
13 Horizontal Sync or Composite Sync
14 Vertical Sync
15 Data Clock
Signal Level
Video signal : 0.7Vp-p (Analog)
Sync signal : TTL level