NEC Lt245 Portable Projector Users Manual

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LAN Built-in
This page shows information on settings for the LAN port (RJ-45)
IP Address ............. Indicates the IP address of the projector when the LAN port (RJ-45) is used.
Subnet Mask ......... Indicates the subnet mask of the projector when the LAN port (RJ-45) is used
Gateway ................ Indicates the gateway of the network connected to the projector when the LAN port (RJ-45) is used.
MAC Address ........ Indicates the MAC address of the LAN port (RJ-45).
LAN PC Card
This page shows information on settings for the optional wireless LAN card
IP Address ............. Indicates the IP address of the projector when the optional wireless LAN card is used.
Subnet Mask ......... Indicates the subnet mask of the projector when the optional wireless LAN card is used.
Gateway ................ Indicates the gateway of the network connected to the projector when the optional wireless LAN card is
used.
MAC Address ........ Indicates the MAC address of the optional wireless LAN card.
6. Using On-Screen Menu 
						

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6. Using On-Screen Menu
LAN Wireless
This page shows information on settings for WEP key for encryption.
SSID ...................... Indicates the identifier (SSID) for your wireless LAN.
Mode ..................... Indicates that Infrastructure or 802.11 Ad Hoc is selected for your communication method
WEP ...................... Indicates your selected datalength encryption: On or Off
Channel ................. Indicates the channel you selected in the Site Survey. The channel must match for all wireless devices
communicating on your wireless LAN.
Signal  Level ........... Indicates receiving condition of radio signal level while you are using a wireless LAN connection (Only when
PC Card is used)
Version
Firmware
Data 
						

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6. Using On-Screen Menu
 Menu Descriptions & Functions [Reset]
Returning to Factory Default
The Reset feature allows you to change adjustments and settings to the factory preset for sources by the following
methods:
[Current Signal]
Resets the adjustments for the current signal to the factory preset levels.
All the items in “Adjust (except “Wall Color”) can be reset.
[All Data]
Reset all the adjustments and settings for all the signals to the factory preset except Entry List, Language, Back-
ground, Cabinet Button Lock, Password (Menu), Password (Logo), Security, LAN Mode, Projector Name,
Commnication, Remaining Lamp Time, Lamp Hour Meter and Projector Usage.
[All Data (Including Entry List)]
Reset all the adjustments and settings for all the signals to the factory preset except Language, Background,
Cabinet Button Lock, Password (Menu), Password (Logo), Security, LAN Mode, Projector Name, Commnication,
Remaining Lamp Time, Lamp Hour Meter and Projector Usage.
Also deletes all the signals in the Entry List and returns to the factory preset.
NOTE: Locked signals in Entry List cannot be reset.
Clearing Lamp Hour Meter [Clear Lamp Hour Meter]
Resets the lamp clock back to zero.
NOTE: The projector will turn off and go into standby mode after 2100 hours (up to 4100 hours in Eco mode) of service. In this
condition you cannot clear the lamp hour meter on the menu. If this happens, press the HELP button on the remote control for
ten seconds to reset the lamp clock back to zero. Do this only after replacing the lamp. 
						

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7
Maintenance
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  Cleaning the Cabinet .............................................. 118
  Cleaning the Lens ................................................... 118
  Replacing the Lamp ................................................ 119 
						

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7. Maintenance
This section describes the simple maintenance procedures you should follow to replace the lamp, and to clean the
cabinet and the lens.
 Cleaning the Cabinet
1. Turn off the projector before cleaning.
2. Clean the cabinet periodically with a damp cloth. If heavily soiled, use a mild detergent. Never use strong
detergents or solvents such as alcohol or thinner.
 Cleaning the Lens
Use a blower or lens paper to clean the lens, and be careful not to scratch the lens.
Lens Protector
The lens barrel has threads on the outside for mounting a commercially available step-up ring (φ77mm → φ82mm) and
lens protector (φ82mm) to protect the lens from dirt, dust, scratches and damage. Note that both a lens protector and
the supplied lens cap cannot be used at the same time.
CAUTION: Use only transparent lens protectors designed for lens protection.
Use of filters for light reduction and special effects, such as ND (Neutral Density) filters and color filters, can
absorb heat, resulting in damage to the filter and the projector. 
						

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7. Maintenance
 Replacing the Lamp
After your lamp has been operating for 2000 hours (up to 4000 hours : Eco mode) or longer, the Lamp indicator in the
cabinet will blink red and the message will appear. Even though the lamp may still be working, replace it at 2000 hours
(up to 4000 hours : Eco mode) to maintain optimal projector performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Turn the projector off,
wait 90 seconds, turn off the main power switch, and then 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 two lamp case screws. You could receive
an electric shock.
•Do not break the glass on the lamp housing.
Keep finger prints off the glass surface on the lamp housing. Leaving finger prints in the glass surface might
cause an unwanted shadow and poor picture quality.
•The projector will turn off and go into stand by mode after 2100 hours (up to 4100 hours : Eco mode) of service.
If this happens, be sure to replace the lamp. If you continue to use the lamp after 2000 hours (up to 4000 hours :
Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp housing. 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 freewheeling condition and remove the
lamp cover. The lamp cover screw is not removable.
2. Loosen the two screws securing the lamp housing until the screwdriver goes into a freewheeling
condition. The two screws are not removable. 
						

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7. Maintenance
Interlock
3. Remove the lamp housing by pulling out the handle.
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.
4. Insert a new lamp housing until the lamp housing is plugged into the socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp (LT60LPK).
5. Secure it in place with the two screws.
Be sure to tighten the screws. 
						

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7. Maintenance
6. Reattach the lamp cover.
7. Tighten the lamp cover screw.
Be sure to tighten the screw.
8. After you install a new lamp, select the menu [Reset] → [Clear Lamp Hour Meter] to clear the Remaining
Lamp Time and the Lamp Hour Meter.
NOTE: When the lamp exceeds 2100 hours (up to 4100 hours in Eco mode) of service, the projector cannot turn on and the
menu is not displayed. If this happens, press the HELP button on the remote control for a minimum of 10 seconds while in
standby mode. When the lamp time clock is reset to zero, the LAMP indicator goes out. 
						

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8
Appendix
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  Troubleshooting ...................................................... 123
  Specifications ......................................................... 126
  Cabinet Dimensions ............................................... 128
  Pin Assignments of D-Sub COMPUTER 1/2 Input
Connector ............................................................ 129
  Compatible Input Signal List ................................... 130
  PC Control Codes and Cable Connection .............. 131
  Using Software Keyboard ....................................... 132

  Troubleshooting Check List ..................................... 133
	  TravelCare Guide .................................................... 135 
						

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8. Appendix

 Troubleshooting
This section helps you resolve problems you may encounter while setting up or using the projector.
Indicator Messages
Power Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightGreen
Orange
Green
Orange0.5 sec On,
0.5 sec Off
2.5 sec On,
0.5 sec Off
0.5 sec On,
0.5 sec OffThe main power is off
The projector is getting ready to turn on.
Off Timer is activated.
The projector is cooling down.
The projector is turned on.
The projector is in Standby.–
Wait for a moment.
–
Wait for a moment.
–
–
Status Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightRed
Green
Orange
Orange1 cycle (0.5 sec On,
2.5 sec Off)
2 cycle (0.5 sec On,
0.5 sec Of)
3 cycle (0.5 sec On,
0.5 sec Off)
4 cycle (0.5 sec On,
0.5 sec Off)
6 cycle (0.5 sec On,
0.5 sec Off)
1 cycle(0.5 sec On,
2.5 sec Off)Normal
Lamp cover error
Temperature error
Power error
Fan error
Lamp error
Re-firing the lamp
Network conflict
Cabinet button is locked–
Replace the lamp cover correctly.
(Page 121)
The projector is overheated. Move
the projector to a cooler location.
Power unit will not work correctly.
Fans will not work correctly.
Lamp fails to light. Wait a full
minute and then turn on again.
The projector is re-firing.
Both the built-in LAN and the wireless
LAN cannot be connected to the same
network at the same time.
To use both built-in LAN and wireless
LAN at the same time, connect them to
different networks. (page 100)
You have pressed cabinet button
when Cabinet Button is locked.
(Page 93)
Lamp Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightNormal
Lamp has reached its end of life. Lamp
replacement message will be displayed.
Lamp has been used beyond its limit. The
projector will not turn on until the lamp is
replaced.
Lamp mode is set to Eco mode Red
Red
Green–
Replace the lamp.
(Page 119)
Replace the lamp.
(Page 119)
–