NEC Projector LT35 LT30 LT25 User Manual

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7. Appendix
 Specifications
This section provides technical information about the LT35/LT30/LT25 projectors performance.
Model Number LT35/LT30/LT25
Optical
DMD Single Chip Digital Micromirror Device (DMD)
Resolution 1024 x 768 pixels* up to SXGA+ (1400 x 1050) with scaling technology
Lens Manual zoom and auto focus (effective range: 1.4 m - 5.5 m) / manual
focus
F2.4 - 2.6 f=25.7 mm - 30.8 mm
Lamp LT35: 220W AC (170W Eco mode)
LT30/LT25: 200W AC (170W Eco mode)
Image Size (Diagonal) 30 - 300 diagonal
Projection Distance 42 - 438 (wide) - 51 - 524 (tele)
1.1 - 11.1 m (wide) - 1.3- 13.3 m (tele)
Projection Angle 11.6° - 12.1° (wide) / 9.7° - 10.0° (tele)
Electrical
Inputs 1 VGA shared with component video (Mini D-Sub 15 Pin), 1 S-Video (Mini
DIN 4 Pin), 1 Video (RCA), 1 Stereo Mini Audio, 1 PC Control (Mini DIN 8
Pin)
Video Compatibility NTSC, NTSC4.43, PAL, PAL-60, PAL-N, PAL-M, SECAM,
Component : 1080i, 720p, 576p, 480p, 576i, 480i
Scan Rate Horizontal: 15 kHz to 100 kHz (RGB: 24 kHz or over)
Vertical: 50 Hz to 85 Hz
Color Reproduction 16.7 million colors simultaneously, Full color
Horizontal Resolution NTSC / NTSC4.43/PAL / PAL-60/PAL-N/PAL-M/YCbCr: 540 TV lines
SECAM: 300 TV lines
RGB: 1024 dots (H) x 768 dots (V)
External Control IR, RS232C
Sync Compatibility Separate Sync / Composite Sync / Sync on G
Built-in Speaker 1W (monaural)
Power Requirement 100 - 240V AC, 50 / 60 Hz
Input Current LT35: 3.1 - 1.4A
LT30/LT25: 2.8 - 1.3A
Power Consumption LT35: 280W in Lamp Normal mode, 230W in Lamp Eco mode, 8.0W in
Standby mode
LT30/LT25: 260W in Lamp Normal mode, 230W in Lamp Eco mode, 8.0W
in Standby mode
* Effective pixels are more than 99.99%. 
						

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7. Appendix
Mechanical
Installation Orientation Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions 10.2 (W) x 3.5 (H) x 8.2 (D)
260 mm (W) x 89 mm (H) x 208.5 mm (D) (not including protrusions)
Net Weight 4.4 lbs / 2.0 kg
Environmental Considerations Operational Temperatures: 41°F to 104°F / 5°C to 40°C
(Eco mode selected automatically at 95°F to 104°F/35°C to 40°C)
20% to 80% humidity (non-condensing)
Storage Temperatures:  14°F to 122°F (-10°C to 50°C), 20% to 80% hu-
midity (non-condensing)
Regulations
For United States:
UL Approved (UL 60950-1)
Meets FCC Class B requirements
For Canada:
UL Approved (CSA 60950-1)
Meets DOC Canada Class B requirements
For Australia/New Zealand:
Meets AS/NZS CISPR.22 Class B
For Europe:
Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3)
Meets Low Voltage Directive (EN60950-1, TUV GS Approved)
For additional information visit:
US : http://www.necvisualsystems.com
Europe : http://www.neceurope.com/
Global : http://www.nec-pj.com/
The specifications are subject to change without notice. 
						

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7. Appendix
 Cabinet Dimensions
LAMP
STATUS
POWER
SOURCE AUTO ADJ. FOCUS
ON/STAND BY
SELECT
COMPUTER IN PC CONTROLAUDIO IN S-VIDEO IN VIDEO IN
260 (10.2)
85 (3.3)
89 (3.5) 60 (2.4)
208.5 (8.2)PUSH
Lens center
Unit: mm (inch) 
						

							56
Mini D-Sub 15 Pin Connector
 Pin Assignments of D-Sub COMPUTER Input Connector
Signal Level
Video signal : 0.7Vp-p (Analog)
Sync signal : TTL level
11 1512 1413
6
5 4 3 2 110 798
7. 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)
13Horizontal Sync or Composite Sync
14 Vertical Sync
15 Data Clock 
						

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7. Appendix
 Compatible Input Signal List
Signal Resolution Frequency H. Refresh Rate
( Dots ) ( kHz ) ( Hz )
NTSC – 15.73 60.00
PAL–15.63 50.00
PAL60 – 15.73 60.00
SECAM – 15.63 50.00
VESA 640
480 31.47 59.94
IBM 640
480 31.48 59.95
MAC 640
480 35.00 66.67
VESA 640
480 37.86 72.81
VESA 640
480 37.50 75.00
IBM 640
480 39.38 75.00
VESA 640
480 43.27 85.01
IBM 720
350 31.47 70.08
VESA 800
600 35.16 56.25
VESA 800
600 37.88 60.32
VESA 800
600 48.08 72.19
VESA 800
600 46.88 75.00
VESA 800
600 53.67 85.06
MAC 832
624 49.72 74.55
VESA 1024
768 48.36 60.00
VESA 1024
768 56.48 70.07
MAC 1024
768 60.24 74.93
VESA 1024
768 60.02 75.03
VESA 1024
768 68.68 85.00
#VESA 1152
864 67.50 75.00
#SUN 1152
900 61.80 65.95
#VESA 1280
960 60.00 60.00
#VESA 1280
1024 63.98 60.02
#MAC1280
1024 69.87 65.18
#SXGA+ 1400
1050 – 60.00
#HDTV (1080i)(1125i)1920
1080 33.75 60.00 Interlace
#HDTV (1080i)(1125i)1920
1080 28.13 50.00 Interlace
#HDTV (720p)(750p)1280
720 45.00 60.00 Progressive
#HDTV (720p)1280
720 37.50 50.00 Progressive
SDTV(576p)(625p)–31.25 50.00 Progressive
SDTV (480p)(525p)–31.47 59.94 Progressive
DVD YCbCr – 15.73 59.94  Interlaced
DVD YCbCr – 15.63 50.00  Interlaced
# : Signals above flagged with # are compressed with scaling technology.
NOTE: 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 help section of your PC for procedures.
Horizontal: 15 kHz to 100 kHz (RGB: 24 kHz or over)
Vertical: 50 Hz to 85 Hz 
						

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7. Appendix
 PC Control Codes and Cable Connection
PC Control Codes
Function Code Data
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT COMPUTER 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
PICTURE MUTE ON 02H 10H 00H 00H 00H 12H
PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H
SOUND MUTE ON 02H 12H 00H 00H 00H 14H
SOUND MUTE OFF 02H 13H 00H 00H 00H 15H
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.
NOTE: Contact your local dealer for a full list of the PC Contorol Codes if needed.
12
45 3
6
78
To RxD of PC
PC Control Connector (DIN-8P)
To TxD of PC
To GND of PC 
						

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No power (POWER indicator does not light green)   See also “Sta-
tus Indicator (STATUS)”.
Power cables plug is fully inserted into the wall outlet.
The power cable has been unplugged and plugged quickly dur-
ing projection.
Lamp cover is installed correctly .
Lamp Hour Used (lamp operation hours) was cleared after lamp
replacement.
No power even though you press and hold the POWER button
for a minimum of 1 second.
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, black background).
Still no image even though you press the AUTO ADJ. button.
Still no image even though you carry out [Reset] in the
projector’s menu.
Signal cables plug is fully inserted into the input connector
A message appears on the screen.
( _____________________________________________ )
The source connected to the projector is active and available.
Still no image even though you adjust the brightness and/or
the contrast.
Input sources resolution and frequency are supported by the
projector.
7. Appendix
 Troubleshooting Check List
Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by
referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your problem
more efficiently.
* Print the following pages.
Frequency of occurrence   always    sometimes (How often?_____________________)     other (__________________)
Power
Shut down during operation.
Power cables plug is fully inserted into the wall outlet.
Lamp cover is installed correctly .
Power Management is turned off (only models with the Power
Management function).
Off Timer is turned off (only models with the Off Timer func-
tion ).
Video and Audio
Image is too dark.
Remains unchanged even though you adjust the brightness
and/or the contrast.
Image is distorted.
Image appears to be trapezoidal (unchanged even though you
carry out the [Keystone] adjustment).
Parts of the image are lost.
Still unchanged even though you press the AUTO ADJ. button.
Still unchanged even though you carry out [Reset] in the
projector’s menu.
Image is shifted in the vertical or horizontal direction.
Horizontal and vertical positions are correctly adjusted on a
computer signal.
Input sources resolution and frequency are supported by the
projector.
Some pixels are lost.
Image is flickering.
Still unchanged even though you press the AUTO ADJ. button.
Still unchanged even though you carry out [Reset] in the
projector’s menu.
Image shows flickering or color drift on a computer signal.
Image appears blurry or out of focus.
Auto Focus is turned on.
There are no objections between the focus sensor and the
screen.
The throw distance is within 1.4 to 5.5 m/55.1” to 216.5”
Image is projected onto the screen.
Still unchanged even though you adjusted the focus manually.
No sound.
Audio cable is correctly connected to the audio input of the
projector.
Still unchanged even though you adjusted the volume level.
Other
Remote control does not work.
No obstacles between the sensor of the projector and the re-
mote control.
Projector is placed near a fluorescent light that can disturb the
infrared remote controls.
Batteries are new and are not reversed in installation.Buttons on the projector cabinet do not work ( only models with
the Key Lock function).
Control Panel Lock is not turned on or is disabled in the menu.
Still unchanged even though you press and hold the EXIT but-
ton for a minimum of 10 seconds. 
						

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7. Appendix
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 light [          ] cycles
Remote control model number:
Signal cable
NEC standard or other manufacturer’s cable?
Model number:                        Length:              inch/m
Distribution amplifier
Model number:
Switcher
Model number:
Adapter
Model number:
ProjectorPC
DVD player
Installation environment
Screen size: inch
Screen type: White matte    Beads   Polarization
 Wide angle    High contrast
 Throw distance: feet/inch/m
 Orientation: Ceiling mount    Desktop
Power outlet connection:
Connected directly to wall outlet
Connected to power cord extender or other (the num-
ber of connected equipment______________)
Connected to a power cord reel or other (the number
of connected equipment______________)
Computer
Manufacturer:
Model number:
Notebook PC  / Desktop 
Native resolution:
Refresh rate:
Video adapter:
Other:
Video equipment
VCR, DVD player, Video camera, Video game or other
Manufacturer:
Model number: 
						

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7. 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 business or plea-
sure.
For details on services offered by the different service stations, please
refer to the List of TravelCare Outlets below.
1 Repair services
The product will be repaired and delivered within 10 business days,
not including shipping time.
During the term of warranty, the cost of maintenance parts, labor
costs for repairs and shipping costs within the service stations cov-
erage area are covered by the warranty.
2 Replacement product rental service
If the customer desires, he or she can rent a replacement product
while the original product is being repaired.
Fee: US$200 for 12 days
This fee must be paid at the local service station in cash or credit
card.
The $200 rental fee is non-refundable even if the customer rents it
less than 12 days before returning.
The replacement product will be delivered within 3 business days.
If the customer did not return the replacement product within 12 days,
the customer will be charged the price of the unit.
If the customer returned the replacement product in a faulty or dam-
aged condition, the repair cost will be charged to the customer.
Note that this service is not offered in all countries and regions. Please
refer to the List of TravelCare Outlets.
In addition, this replacement product rental service is not offered af-
ter the products warranty has expired.
Term of warranty
1
a. Upon presentation of the warranty or receipt received upon pur-
chase:
Valid for the term indicated on the warranty or the normal term of
warranty for the country of purchase.
b.When only the product is brought in:
Valid for a period of within 14 months of the date of manufacture
indicated by the serial number attached to the product.
2When a product whose term of warranty is expired is brought in:
Repairs will be offered for a fee. In this case the customer is not
eligible for the replacement product rental service.
3In the following cases, repairs may be charged, even if the products
warranty is still in effect:
1) If the term of warranty, model name, serial number and name of
the store of purchase are not indicated on the warranty or have
been altered.
2) Problems or damage caused by dropping or shocks during ship-
ment or movement by the customer or by improper handling by
the customers.
3) Problems or damage caused by improper usage or unwarrant-
able alterations or repairs by the customer.
4) Problems or damage caused by fire, salt damage, gas damage,
earthquakes, lightning damage, storm or flood damage or other
natural disasters or such external factors as dust, cigarette
smoke, abnormal voltage, etc.5) Problems or damage caused by use in hot or humid places, in
vehicles, boats or ships, etc.
6) Problems or damage caused by expendable supplies or devices
connected to the product other than those designated by NEC.
7) Problems caused by natural consumption, wear or deterioration
of parts under normal usage conditions.
8) Problems or damage to lamps and other expendable supplies,
included parts or optional parts.
9)Other conditions stipulated in the warranty included with the prod-
uct also apply.
NOTE: The product can be used overseas with voltages of 100 to 120V and 200
to 240V by using a power cable suited for the standards and power source volt-
age of the country in which the product is being used.
List of TravelCare Outlets
This list applies as of December 1, 2004.
For the most up-to-date information, please refer to the websites of the
service stations in the various countries on the List of TravelCare Out-
lets or to the NEC website at http://www.nec-pj.com.
In Europe
NEC Europe, Ltd. / European Technical Centre
Address: Unit G, Stafford Park 12, Telford TF3 3BJ, U.K.
Telephone: +44 1952 237000
Fax Line: +44 1952 237006
Email Address: [email protected]
WEB Address:http://www.neceur.com
(Regions Covered)
EU:Austria*, Belgium*, Denmark*, Finland*, France*, Germany*,
Greece*, Ireland*, Italy*, Luxembourg*, The Netherlands*,
Portugal*, Spain*, Sweden* and the United Kingdom*
EEA: Norway*, Iceland and Liechtenstein
In North America
NEC Solutions (America), Inc.
Address: 1250 N. Arlington Heights Road,
Itasca, Illinois 60143, U.S.A.
Telephone: +1 800 836 0655
Fax Line: +1 800 356 2415
Email Address: [email protected]
WEB Address:http://www.necvisualsystems.com
(Regions Covered)
U.S.A. *, Canada*
In Oceania
NEC Australia Pty., Ltd.
Address: New South Wales;
184 Milperra Road, Reversby 2212
Victoria;
480 Princess Hwy Noble Park 3174
South Australia;
84A Richmond Road, Keswick 5035
Queensland;
116 Ipswich Road, Woollongabba 4102
Western Australia;
45 Sarich Court Osborne Park 6017
Telephone: 131 632 (from domestic)
+61 8 8375 5706 (from overseas)
Fax Line: +61 8 8375 5757
Email Address: [email protected]
WEB Address:http://www.nec.com.au
(Regions Covered)
Australia*, New Zealand 
						

							62
7. Appendix
Lenso Communication Co., Ltd.
Address: 292 Lenso House 4, 1st Floor, Srinakarin Road,
Huamark, Bangkapi, Bangkok 10240, Thailand
Telephone: +66 2 375 2425
Fax Line: +66 2 375 2434
Email Address: [email protected]
WEB Address:http://www.lenso.com
(Regions Covered)
Thailand
ABBA Electronics L.L.C.
Address: Tariq Bin Ziyad Road, P.O.Box 327, Dubai,
United Arab Emirates
Telephone: +971 4 371800
Fax Line: +971 4 364283
Email Address: [email protected]
(Regions Covered)
United Arab Emirates
Samir Photographic Supplies
Address: P.O.Box 599, Jeddah 21421, Saudi Arabia
Telephone: +966 2 6828219
Fax Line: +966 2 6830820
Email Address: [email protected]
(Regions Covered)
Saudi Arabia
NOTE: In countries designated with an asterisk(*), replacement product rentalservice are offered.
In Asia and Middle East
NEC Viewtechnology,  Ltd.
Address: 686-1, Nishioi, Oi-Machi, Ashigarakami-Gun,
Kanagawa 258-0017, Japan
Telephone: +81 465 85 2369
Fax Line: +81 465 85 2393
Email Address: [email protected]
WEB Address:http://www.nec-pj.com
(Regions Covered)
Japan*
NEC Hong Kong Ltd.
Address: 11th Floor, Tower B, New Mandarin Plaza, 14
Science Museum Road,
Tsim Sha Tsui East, Kowloon, Hong Kong
Telephone: +852 2369 0335
Fax Line: +852 2795 6618
Email Address: [email protected]
WEB Address:http://www.nec.com.hk
(Regions Covered)
Hong Kong
NEC Taiwan  Ltd.
Address: 7F, No.167, SEC.2, Nan King East Road, Taipei,
Taiwan, R.O.C.
Telephone: +886 2 8500 1734
Fax Line: +886 2 8500 1420
Email Address: [email protected]
WEB Address:http://www.nec.com.tw
(Regions Covered)
Taiwan
NEC Solutions Asia Pacific Pte. Ltd
Address: 401 Commonwealth Drive, #07-02, Haw Par
Technocentre, Singapore 149598
Telephone: +65 6 273 8333
Fax Line: +65 6 274 2226
Email Address: [email protected]
WEB Address:http://www.nec.com.sg/ap
(Regions Covered)
Singapore
NEC Systems Integration Malaysia Sdn Bhd
Address:
Ground Floor, Menara TA One, 22, Jalan P. Ramlee,50250 Kuala Lumpur, Malaysia
Telephone: +6 03 2164 1199
Fax Line: +6 03 2160 3900
Email Address: [email protected]
WEB Address:http://www.necmalaysia.com.my
(Regions Covered)
Malaysia
Tele Service Co., Ltd.
Address: 2nd Fl., Ire B/D. #2, 4Ga, Yangpyeng-Dong,
Youngdeungpo-Gu, Seoul, Korea 150-967
Telephone: +82 2 2163 4193
Fax Line: +82 2 2163 4196
Email Address: [email protected]
(Regions Covered)
South Korea