NEC Lt220 Portable Projector Users Manual

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Compatible Input Signal List
Signal Resolution Frequency H. Refresh Rate Dot Clock
( Dots ) ( kHz ) ( Hz ) ( MHz )
NTSC – 15.734 60 –
PAL–15.625 50 –
SECAM – 15.625 50 –
VESA 640
480 31.47 59.94 25.175
IBM 640
480 31.47 60 25.175
MAC 640
480 31.47 60 25.175
MAC 640
480 34.97 66.67 31.334
MAC 640
480 35 66.67 30.24
VESA 640
480 37.86 72.81 31.5
VESA 640
480 37.5 75 31.5
IBM 640
480 39.375 75 31.49
VESA 640
480 43.269 85.01 36
IBM 720
350 31.469 70.09 28.322
VESA 720
400 37.927 85.04 35.5
IBM 720
350 39.44 87.85 35.5
IBM 720
400 39.44 87.85 35.5
VESA 800
600 35.16 56.25 36
VESA 800
600 37.879 60.32 40
VESA 800
600 48.077 72.19 50
VESA 800
600 46.88 75 49.5
VESA 800
600 53.674 85.06 56.25
MAC 832
624 49.725 74.55 57.283
@VESA 1024
768 35.5 43 Interlaced 44.9
@VESA 1024
768 48.363 60 65
@VESA 1024
768 56.476 70.07 75
@MAC1024
768 60.241 74.93 80
@VESA 1024
768 60.023 75.03 78.75
@VESA 1024
768 68.677 85 94.5
#@ VESA 1152
864 67.5 75 108
#@ MAC 1152
870 68.681 75.06 100
#@ SUN 1152
900 61.796 65.95 92.94
#@ SGI 1152
900 71.736 76.05 105.6
#@ VESA 1280
960 60 60 108
#@ VESA 1280
1024 63.981 60.02 108
APPENDIX 
						

							E-132
#@ MAC 1280
1024 69.89 65.2 118.5
#@ HP 1280
1024 78.125 72.01 135
#@ SUN 1280
1024 81.13 76.11 135
#@ VESA 1280
1024 79.976 75.03 135
#@ VESA 1280
1024 91.146 85.02 157.5
#@HDTV (1080i)(1125i)1920
1080 33.75 60 Interlace 74.25
#@HDTV (1080i)(1125i)1920
1080 28.13 50 Interlace 74.25
#@HDTV (720p)(750p)1280
720 45 60 Progressive 74.25
#@SDTV (480p)(525p)–31.47 59.94 Progressive 27
#@ VESA 1600
1200 75.0 60 162
#@ VESA 1600
1200 81.3 65 175.5
#@ VESA 1600
1200 87.5 70 189
#@ VESA 1600
1200 93.75 75 202.5
DVD YCbCr – 15.734 59.94  Interlaced –
DVD YCbCr – 15.625 50  Interlaced –
Signal Resolution Frequency H. Refresh Rate Dot Clock
( Dots ) ( kHz ) ( Hz ) ( MHz )
#:Images in above flagged with # are compressed with Advanced
AccuBlend on LT260 and LT240.
@:Images in above flagged with @ are compressed with Advanced
AccuBlend on LT220.
NOTE: Some composite sync signals may not be displayed correctly.
Signals other than those specified in the table above may not be displayed cor-
rectly. If this should happen, change the refresh rate or resolution on your PC.
Refer to Display Properties help section of your PC for procedures.
UXGA (1600
1200) is supported for separate sync signal only.
APPENDIX 
						

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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 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 RGB 1 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT RGB 2 02H 03H 00H 00H 02H 01H 02H 0AH
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
INPUT SELECT VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H
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
ON SCREEN MUTE ON 02H 14H 00H 00H 00H 16H
ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H
NOTE: Contact your local dealer for a full list of PC Control Codes if needed.
NOTE: Pins 2, 3, 5, 6 and 8 are used
inside the projector. PC Control Connector (DIN-8P)
1 2 54 36
7 8
To RxD of PC
To TxD of PC To GND of PC 
						

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APPENDIX
Using Software Keyboard
1 to 0 and Characters .........Use to type in IP address or projector
name
SP ....................................... Inserts a space
BS ....................................... Deletes one character backward
......................................... Returns to the previous
......................................... Advances to the next
OK ....................................... Executes the selection
Cancel ................................. Cancels the selection
Drag bar ..............................Use to move the software keyboard on the
screen.
MODE ................................. Selects one of three modes for alphabet
and special characters. 
						

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APPENDIX
Operation Using an HTTP Browser
Overview
The use of HTTP server functions will allow control of the projector from a
web browser without the installation of special software. Please be sure to
use “Microsoft Internet Explorer 4.x” or a higher version for the web browser.
(This device uses “JavaScript” and “Cookies” and the browser should be
set to accept these functions. The setting method will vary depending on
the version of browser. Please refer to the help files and the other informa-
tion provided in your software.)
NOTE:
*The use of HTTP server functions is not available during Standby mode.
*The display’s or button’s response can be slowed down or operation may not be
accepted depending the settings of your network. Should this happen, consult
your network administrator.
*The projector may not respond if its buttons are repeatedly pressed in rapid
intervals. Should this happen, wait a moment and repeat. If you still can’t get
any response, pull out and then re-insert the LAN card.
Access is gained to the HTTP server functions by specifying
 http://  /index.html
in the entry column of the URL.
Preparation Before Use
Make network connections and set up the projector and confirm that it is
complete before engaging in browser operations. (See “Setting LAN Mode”
on page E-102.)
Operation with a browser that uses a proxy server may not be possible
depending on the type of proxy server and the setting method. Although
the type of proxy server will be a factor, it is possible that items that have
actually been set will not be displayed depending on the effectiveness of
the cache, and the contents set from the browser may not be reflected in
operation. It is recommended that a proxy server not be used unless it is
unavoidable. 
						

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APPENDIX
Handling of the Address for Operation via a Browser
Regarding the actual address that is entered for the address or entered to
the URL column when operation of the projector is via a browser, the host
name can be used as it is when the host name corresponding to the IP
address of the projector has been registered to the domain name server
by a network administrator, or the host name corresponding to the IP ad-
dress of the projector has been set in the “HOSTS” file of the computer
being used.
Example 1: When the host name of the projector has been set to
“pj.nec.co.jp”,
http://pj.nec.co.jp/index.html
is specified for the address or the entry column of the URL.
Example 2: When the IP address of the projector is “192.168.73.1”,
access is gained to the
HTTP server functions by specifying
http://192.168.73.1/index.html
for the address or the entry column of the URL. 
						

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APPENDIX
Structure of the HTTP Server
Power: This controls the power of the projector.
On ................... Power is switched on.
Off ................... Power is switched off.
Volume: This controls the volume of the projector.

..................... Increments the volume adjustment value.
..................... Decrements the volume adjustment value.
Mute: This controls the mute function of the projector.
All On .............. Mutes each of the video, audio, and on-screen display
functions.
All Off .............. Cancels the muting of each of the video, audio, and
on-screen display functions.
Picture On ....... Mutes the video.
Picture Off ....... Cancels the video muting.
Sound On ........ Mutes the audio.
Sound Off ........ Cancels the audio muting.
OSD On .......... Mutes the on-screen display.
OSD Off .......... Cancels the muting of the on-screen display. 
						

							E-138 Picture: Controls the video adjustment of the projector.
Brightness 
... Increments the brightness adjustment value.
Brightness ... Decrements the brightness adjustment value.
Contrast 
...... Increments the contrast adjustment value.
Contrast ...... Decrements the contrast adjustment value.
Color 
........... Increments the color adjustment value.
Color ........... Decrements the color adjustment value.
Hue 
............. Increments the hue adjustment value.
Hue ............. Decrements the hue adjustment value.
Sharpness 
... Increments the sharpness adjustment value.
Sharpness ... Decrements the sharpness adjustment value.
*The functions that can be controlled will vary depending on the signal
being input to the projector.
Source Select: This switches the input connector of the projector.
RGB1 .............. Switches to the RGB 1 connector.
RGB2 .............. Switches to the RGB 2 connector.
Video ............... Switches to the Video connector.
S-Video ........... Switches to the S-Video connector.
Viewer ............. Switches to the Viewer.
LAN ................. Switches to a LAN signal.
Projector Status: This displays the condition of the projector.
Remaining Lamp Time... Displays the remaining life of the lamp as a per-
centage.
Lamp Hour Meter ...... Displays how many hours the lamp has been
used.
Projector Usage ........ Displays how many hours the projector has been
used.
Error  Status ............... Displays the status of errors occurring within the
projector.
Refresh ..................... Updates the display of the following conditions.
APPENDIX 
						

							E-139
APPENDIX
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 under
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 pleasure.
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 coverage 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.
TravelCare Guide 
						

							E-140 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 after
the products warranty has expired.
Term of warranty
1a.Upon presentation of the warranty or receipt received upon purchase:
Valid for the term indicated on the warranty or the normal term of war-
ranty 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 indi-
cated 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 al-
tered.
2) Problems or damage caused by dropping or shocks during shipment or
movement by the customer or by improper handling by the customers.
3) Problems or damage caused by improper usage or unwarrantable al-
terations or repairs by the customer.
4) Problems or damage caused by fire, salt damage, gas damage, earth-
quakes, lightning damage, storm or flood damage or other natural di-
sasters 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 con-
nected to the product other than those designated by NEC.
APPENDIX