NEC Lt280 Portable Projector Users Manual

111
8. Appendix
Mechanical
Installation Orientation: Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions 11.6 (W) 
 4.7 (H) 
 11.3 (D)
294 mm (W) 
 120 mm (H) 
 288 mm (D)
(not including protrusions)
Weight 7.7 lbs / 3.5 kg
Environmental Considerations
Operational Temperatures  :
41° to 104°F / 5° to 40°C,
(Eco mode selected automatically at 95° to 104°F/35° to 40°C, opera-
tional temperatures during use of wireless LAN card: 41° to 95° F / 5° to
35°C ), 20% to 80% humidity...

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PC CARDCOMPONENT IN
USB LAN
AUDIO INCOMPUTER 3 IN
COMPUTER 1 IN COMPUTER 2 IN
PC CONTROLMONITOR OUT
AUDIO OUT S-VIDEO IN VIDEO INAUDIO INCb/Pb
L/MONO R YCr/Pr
PC CARDLAMPSTATUSPOWERON/STAND BY
SOURCE AUTO ADJUST
3D REFORM
SELECT
AC IN
294 (11.57)
71.5 (2.82)
120 (4.72)
64.5 (2.54)
288 (11.34)127.2 (5.0)
8. Appendix
 Cabinet Dimensions
LT380
Lens centerLens center
Unit: mm (inch) 

113
LT280
8. Appendix
PC CARDCOMPONENT IN
USB LAN
AUDIO INCOMPUTER 1 IN COMPUTER 2 IN
PC CONTROLMONITOR OUT
AUDIO OUT S-VIDEO IN VIDEO INAUDIOCb/Pb
L/MONO R YCr/Pr
AC IN
PC CARDLAMPSTATUSPOWERON/STAND BY
SOURCE AUTO ADJUST
3D REFORM
SELECT
294 (11.57)
71.5 (2.82)
120 (4.72)
64.5 (2.54)
288 (11.34)127.2 (5.0)
Lens center
Lens center
Unit: mm (inch) 

114
Mini D-Sub 15 Pin Connector
 Pin Assignments of D-Sub COMPUTER 1/2 Input Connector
Signal Level
Video signal : 0.7Vp-p (Analog)
Sync signal : TTL level
* COMPUTER 1 IN connector only51423
10
11 12 13 14 156 978
8. Appendix
Pin No. RGB Signal (Analog) YCbCr Signal
1Red Cr
2Green or Sync on Green Y
3Blue Cb
4Ground
5Ground
6Red Ground Cr Ground
7Green Ground Y Ground
8Blue Ground Cb Ground
9No Connection
10 Sync Signal Ground
11 SCART Sync
12 Bi-directional DATA (SDA)*
13 Horizontal Sync or Composite...

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8. Appendix
 Compatible Input Signal List
Signal Resolution Frequency H. Refresh Rate
( Dots ) ( kHz ) ( Hz )
#: Signals in above flagged with # are compressed with Advanced AccuBlend.
D: Images above flagged with D are supported by digital signal.
NOTE: Some composite sync signals may not be displayed correctly.
Signals other than those specified in the table above may not be displayed correctly. If this should happen, change the refresh rate
or resolution on your PC. Refer to Display Properties...

116
8. Appendix
Cable Connection
Communication Protocol
Baud rate ........................................ 38400 bps
Data length ..................................... 8 bits
Parity .............................................. No parity
Stop bit .......................................... One bit
X on/off .......................................... None
Communications procedure ........... Full duplex
NOTE: Depending on the equipment, a lower baud rate may be recommended for long cable runs.
 PC Control...

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8. Appendix
 Using Software Keyboard
1 to 0 and Characters
.............................. Use to type in password or keyword.
MODE .................... Selects one of three modes for alphabet and special characters.
SP ......................... Inserts a space
BS ......................... Deletes one character backward
.......................... Returns to the previous
.......................... Advances to the next
OK ......................... Executes the selection
Cancel ......................

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No image is displayed from your PC or video equipment to the
projector.
Still no image even though you connect the projector to the PC
first, then start the PC.
Enabling your notebook PC’s signal output to the projector.
•A combination of function keys will enable/disable the ex-
ternal display. Usually, the combination of the “Fn” key along
with one of the 12 function keys turns the external display
on or off.
No image (blue background, logo, no display).
Still no image even though you press the...

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In the space below please describe your problem in detail.
Information on application and environment where your projector is used
Projector
Model number:
Serial No.:
Date of purchase:
Lamp operating time (hours):
Lamp Mode: Normal   Eco
Information on input signal:
Horizontal synch frequency [          ] kHz
Vertical synch frequency [          ] Hz
Synch polarity H  (+)   (–)
V  (+)   (–)
Synch type Separate   Composite
 Sync on Green
STATUS Indicator:
Steady light Orange   Green
Flashing...

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8. Appendix

 TravelCare Guide
TravelCare - a service for international travelers
This product is eligible for TravelCare, NECs unique international war-
ranty.
Please note that TravelCare coverage differs in part from coverage un-
der the warranty included with the product.
Services offered with TravelCare
This warranty allows customers to receive service on their product at
the NEC and NEC-designated service stations in the countries listed
herein when temporarily traveling internationally for...