NEC Mt1075 Lcd Projector Users Manual

							E-47
[Page 3]
Selecting Signal Format [Signal Select]
RGB1/2:
Allows you to choose RGB for an RGB source such as a computer,
or Component for a component video source such as a DVD player.
Normally select RGB/Component and the projector automatically
detects an either incoming signal. However there may be some com-
ponent signals that the projector is unable to detect. If this is the
case, select Component. Select Scart in RGB 1 or 2 for the Euro-
pean Scart.
VIDEO and S-VIDEO:
This feature enables you to select composite video standards manu-
ally. Normally select Auto. Select the video standard from the pull-
down menu. This must be done for Video and S-Video separately.
[Page 4]
Enabling Auto Adjust [Auto Adjust]:
When Auto Adjust is set to On, the projector automatically deter-
mines the best resolution for the current RGB input signal to project
an image using NECs Advanced AccuBlend Intelligent Pixel Blend-
ing Technology.
The image can be automatically adjusted for position and stability;
Horizontal Position, Vertical Position, Clock, Phase, and Reso-
lution.
On .................. Automatically adjusts image Horizontal Position,
Vertical Position, Clock, Phase and Resolution.
Off .................. User can adjust the image display functions (Hori-
zontal Position, Ver tical Position, Clock, Phase
and Resolution) manually.Enabling Auto Start [Auto Start]:
Turns the projector on automatically when the power cable is inserted
into an active power outlet and the main power switch is turned on.
This eliminates the need to always use the Power button on the
remote control or projector cabinet.
Enabling Power Management [Power Management]:
When this option is on and there is no input for five minutes or more,
the projector will automatically turn itself off.
Enabling Power Off Confirmation [Power Off Confirmation]:
This option determines whether a confirmation dialog for turning off
the projector will appear or not.
NOTE: When the confirmation message is displayed, you must be in the Pro-
jector mode to operate your projector using the remote control. If not, press
the PJ button on the remote control to change your projector to the Projector
mode. The button lights to indicate that you are in the Projector mode.
Enabling Horizontal and Vertical Keystone Correction Save
[3D Reform Save]:
This option enables you to save your current 3D Reform settings.
Saving your change once affects all sources. The changes are saved
when you turn off the projector.
Enabling High Speed Fan Mode [High Speed Fan Mode]:
This option allows you to select two modes for fan speed:high-speed
mode and normal speed mode.
When you wish to cool down the temperature inside the projector
quickly, check this box.
NOTE: Enable High Speed Fan mode if you continue to use the projector forconsecutive days.
Selecting Built-in Speakers [Built-in Speaker]:
This option allows you to mute the built-in speakers.
Enabling Idle Mode [Idle Mode]:
The projector has two standby modes: Standby and Idle.
Standby is the mode that allows you to put the projector in the standby
condition which consumes less power than the idle mode. The pro-
jector is preset for Idle mode at the factory.
When this check box is turned on, you allow the RGB OUT connector
to output RGB signal during Idle mode.
NOTE:
*The RGB OUT connector will not output signal during the Standby mode.
*Via the USB interface the projector can be turned on from your PC using
Dynamic Image Utility 2.0 during the Standby or Idle mode. On the LAN
connection the projector can be controlled or monitored from your PC us-
ing Dynamic Image Utility 2.0 only in the Idle mode.
*The HTTP server functions are not available during Standby mode.
Resetting the Filter Usage Hours [Clear Filter Usage Meter]:
Resets the filter usage back to zero. Pressing this button appears a
confirmation dialog box. To reset the filter usage hours, press OK. 
						

							E-48
[Page 6]
Selecting Communication Speed [Communication Speed]:
This feature sets the baud rate of the PC Control port (D-Sub 9 Pin).
It supports data rates from 4800 to 38400 bps.
The default is 38400 bps. Select the appropriate baud rate for your
equipment to be connected (depending on the equipment, a lower
baud rate may be recommended for long cable runs).
Selecting Default Source [Default Source Select]:
You can set the projector to default to any one of its inputs each time
the projector is turned on.
Last ................ Sets the projector to default to the previous or last
active input each time the projector is turned on.
Auto ............... Searches for an active source in order of RGB1 →
RGB2 → Video → S-Video → DVI(DIGITAL) → Viewer
→ RGB1 and displays the first found source.
Select .............Displays the selected source input every time the pro-
jector is started up. Select an input from the pull-down
menu.
Disabling the Cabinet Buttons [Control Panel Key Lock]:
This option turns on or off the Control Panel Key Lock function.
NOTE:
*This Control Panel Key Lock does not affect the remote control and the PC
Control functions.
*When the cabinet buttons are disabled, pressing and holding the CANCEL
button for about 10 seconds will change the setting to enabled.
Selecting Lamp Mode and Lamp Type [Lamp Setting] [Page 5]
Remote Sensor:
This option determines which remote sensors on the projector are
enabled in wireless mode.
The options are: front, rear, right, or left. All checked boxes indicate
that they can accept the infrared signal from the supplied remote
control.
S-Video Mode Select:
This feature is used to select the S-Video signal detection mode.
This allows identifying of the S-Video signals with different aspect
ratio (16:9 and 4:3).
Off .................. Does not identify any S-video signal.
S2 .................. Identifies the 16:9 or 4:3 signal.
Lamp Mode:
This feature enables you to select two brightness modes of the lamp:
Normal and Eco modes. The lamp life can be extended by using the
Eco mode.
Normal Mode . This is the default setting (100% Brightness).
Eco Mode ......Select this mode to increase the lamp life (80% Bright-
ness).
Lamp Type:
The lamp type you use is displayed here.
MT70LP ......... Standard life lamp (MT1075)
MT60LP ......... Standard life lamp (MT1065)
MT60LPS ....... Optional extended life lamp. When the optional ex-
tended life lamp is used, the Lamp Mode is available. 
						

							E-49
Selecting Auto Functions
Focus:
When Auto Focus is enabled in the Auto Functions menu, Auto Fo-
cus can be executed by pressing and holding the AUTO ADJUST or
AUTO ADJ button for a minimum of 2 seconds.
Wall Color Correction:
When Wall Color Correction is enabled in the Auto Functions menu,
Wall Color Correction can be executed by pressing and holding the
AUTO ADJUST or AUTO ADJ button for a minimum of 2 seconds.
Correction settings will be saved on User 4 (AutoAdjustButton).
3D Reform:
Auto 3D Reform automatically corrects distortion by sensing the out-
line or outer frame of your screen with the projector’s built-in image
sensor to project an image within the screen.
See page E-26. Selecting Aspect Ratio and Position for Screen [Screen]
Screen Type:
Select either 4:3 Screen or 16:9 Screen for the screen to be used.
See also Aspect Ratio on page E-40.
NOTE: When Resolution is set to Native, this selection is inactive.
Position:
This feature adjusts the vertical position of the image when viewing
video with an aspect ratio selected.
When some aspect ratios are selected in Image Options, the image
is displayed with black borders on the top and bottom.
You can adjust the vertical position between top and bottom.
NOTE: This option is not available when 4:3 is selected in Screen Type andLetterbox is selected in Aspect Ratio.
NOTE:During 3D Reform adjustment, Screen Type and Screen Position
may not be available. To make available, first reset the 3D Reform data and
then do settings again. Secondly repeat the 3D Reform adjustment. Changing
Screen Type and Screen Position can limit 3D Reform in its adjustable
range.
NOTE:
1. If neither Focus or Wall Color Correction are enabled in the Auto Functions
menu when you press and hold the AUTO ADJUST or AUTO ADJ button
for a minimum of 2 seconds, the Auto Adjust function (Position/Clock/
Phase) will be performed instead of Auto Focus and Auto Wall Color Cor-
rection.
2. Due to specifications of the image sensor on the projector, Auto Functions
are effective to image sizes between 40 and 150(diagonal). Also in some
cases Auto Functions may not work correctly depending on projection
conditions such as textured material of the screen or ambient light. 
						

							E-50
Setting LAN Mode
This feature allows you to set various setting items when the projector is
used on your network.
Consult with your network administrator about these settings.
NOTE:
•A LAN card is required for LAN connection; NECs optional wireless LAN card
is available. For more information on inserting or ejecting a LAN card, see
page E-30.
•Either PC Card Slots 1 or 2 can accept LAN card. If two LAN cards are in-
serted into both PC card slots, the first inserted one is effective.
CAUTION: Make sure that the LAN card is removed during Standby
mode (NOT Idle mode) or with the main power off.
Failure to do so may cause damage to the data on your PC card.
IP Address
An IP address can be automatically assigned to this projector by your
DHCP server. If your network does not automatically assign IP address,
ask your network administrator for an address, and then register it manu-
ally.
Automatic ....... Automatically assigns an IP address to the projector
from a DHCP server.
Manual ........... Provides a space for you to register the IP address or
subnet mask number obtained from your network ad-
ministrator.
IP Address ..... Set your IP address. Press 
 to display the software
keyboard and type in 12 numeric characters.
Subnet Mask .. Set your subnet mask number. Press 
 to display
the software keyboard and type in 12 numeric char-
acters.
Projector NameSpecify a unique projector name. Press  to display
the software keyboard and type in. Up to 16 alphanu-
meric characters can be used.
Gateway ......... Set the default gateway of the network connected to
the projector. Press 
 to display the software key-
board and type in 12 numeric characters.
Checking this box will make the set default route valid.
When data is sent from the LAN card, the transfer
location will be searched according to the previously
set routing information; however, when the transfer
location has not been found as a result of the search,
the data will be sent to the device that holds the IP
address set here. The IP address that is set here must
be one that can be identified by a search of the rout-
ing information.
DNS Configuration
....................... Type in the IP address of DNS server on the network
connected to the projector. 12 numeric characters are
used.Domain Name Type in domain name of the network connected to
the projector. Up to 60 alphanumeric characters can
be used.
Network Type (required for wireless only)
Mode:
Select communication method when using wireless LAN.
Infrastructure ................ Select this option when communicating with
one or more equipment connected to the
wireless or wired LAN network via an ac-
cess point.
802.11 Ad Hoc .............. Select this option when using the wireless
LAN to communicate with a computer in a
one-to-one correspondence. This is a
method that meets the IEEE802.11 wireless
standard.
Ad Hoc .......................... Select this option when using the wireless
LAN to communicate with a computer in a
one-to-one correspondence.
Easy Connection ..........This allows you to easily set up wireless LAN
connection. See the supplied Software Util-
ity Installation Guide for more information.
SSID (Network name):
Enter an identifier (SSID) for wireless LAN. Communication can be
done only with equipment whose SSID matches SSID for your wire-
less LAN. Up to 16 alphanumeric characters can be used (Case-
sensitive).
NOTE: To disable SSID, select a space (null) or ANY(All caps).
Channel:
Set this option when selecting [802.11 Ad Hoc] or [Ad Hoc] in [Mode].
Select a channel number from the pull-down list. The channel must
match for all wireless devices communicating on your wireless LAN.
NOTE: Channels in the pull-down list are different depending on which coun-try you live in.
TX rate:
Select a wireless transmission speed. Normally leave it as Automatic.
Try another transmission speed when the connection fails. 
						

							E-51
WEP (for Wireless only)
Select this option whether using the WEP (Wired Equivalent Privacy)
key for encryption or not. To use encryption, specify WEP key.
Disable ........... Will not turn on the encryption feature. Your commu-
nications may be monitored by someone.
64bit ............... Uses 64-bit datalength for secure transmission.
128bit ............. Uses 128-bit datalength for secure transmission. This
option will increase privacy and security when com-
pared to use of 64bit datalength encryption.
NOTE: The WEP settings must be the same as communication devices such as
PC or access point in your wireless network. When you use WEP, your image
transmission speed will slow down.
Key Select:
Selects one key from the four keys below when selecting [64bit] or
[128bit] in [WEP].
Key1-4:
Enter encryption key when selecting [64bit] or [128bit] in [WEP].
The key can also be set in hexadecimal digit.
*Enter 0X(numeral and alphabet respectively) right in front of your
key code.
*Hexadecimal uses 0 to 9 and A to F.
*Up to 5 characters can be set in 64 bit and up to 13 characters in
128 bit.
When setting in a hexadecimal digit, up to 10 characters can be
set in 64 bit and up to 26 characters in 128 bit.
Mail
NOTE: To the Mail Alert feature on wireless LAN connection, select Infrastruc-
ture for Mode in Network Type. Test Mail is available only when there is a
LAN card in the PC card slot of the projector.
Alert Mail:
Checking this box enables Alert Mail feature.
This option notifies your computer of an error message via e-mail
when using wireless or wired LAN. The error message will be notified
when the projector lamp has reached the end of its usable life or an
error occurs in the projector.
Sample of a message sent from the projector:
The lamp is at the end of its usable life. Please replace the lamp.
Projector Name: X X X X
Lamp Hour Meter: xxxx [H]
Projector Usage: xxxxxx [H]
Senders Address:
Specify the senders address. Use the Software keyboard. Up to 60
alphanumeric and symbols characters can be used. See Using Soft-
ware Keyboard in Appendix for more details.
SMTP Server Name:
Type in the SMTP server name to be connected to the projector. Up
to 60 alphanumeric characters can be used.
Recipients Address 1 to 3:
Type in your recipients address. Up to 60 alphanumeric and symbols
characters can be used.
Test Mail:
Send a test mail to check if your settings are correct.
NOTE:If you entered an incorrect address in a test, you may not receive an
Alert mail. Should this happen, check if the Recipients Address is correctly
set.
NOTE: Unless any one of the Senders Address, SMTP Servers Name orRecipients Address 1-3 is selected, Test Mail is not available.
NOTE: Be sure to highlight “OK” and press the ENTER button before execut-ing “Test Mail”. 
						

							E-52
Status
Displays the status of the LAN settings.
IP Address ..... Indicates the IP address of the projector.
Subnet Mask .. Indicates the subnet mask of the projector.
MAC Address . Indicates the MAC address of the LAN card.
Setting a Password
A password can be set for your projector to avoid operation by an unau-
thorized person.
There are two password options: one for menu and the other for logo.
When a password is set, doing any one of the following four operations
will display the Password input screen.
For Menu:
*Changing the menu to Advanced
*Editing the custom menu
For Logo:*Changing the background
*Changing the logo data in PC Card Files
Procedures for Password setting apply to both Menu and Logo.
Entry
To assign your password:
NOTE: Up to 15 alphanumeric characters can be assigned.
1. Type a password.
Highlight Entry and press the ENTER button.
The Enter the Password screen will be displayed.
Make sure that  is highlighted and then press the ENTER button.
The Software keyboard appears. Use the Software keyboard to type
a password and then highlight OK on the “Enter the Password”
screen and press the ENTER button.
The [Confirm Password] screen will be displayed.
2.Type the same password again. Highlight OK on the “Enter the Pass-
word” screen and press the ENTER button.
Your password will be assigned.
Delete
To delete your password:
1. Highlight [Delete] and press the ENTER button. The Current Pass-
word screen will be displayed.
2. Use the Software keyboard to type your password. Highlight OK on
the “Current Password” screen and then press the ENTER button.
Your password will be deleted.
In case you forget your password, follow the steps below to delete it.
1. Select the Advanced menu from the Basic menu. The Password
entry screen will be displayed.
2. Use the Software keyboard to type 1111.
Highlight OK on the “Password” entry screen and then press the
ENTER button.
The Password Warning!! message will be displayed.
3. Use the Software keyboard to type 3333.
Highlight OK on the “Password” entry screen and then press the
ENTER button.
The Password Warning!! message will be displayed.
4. Use the Software keyboard to type 5555.
Highlight OK on the “Password” entry screen and then press the
ENTER button.
The Delete Password. Are you sure? Yes/No dialog box will be dis-
played.
5. Use the SELECT 
 or  button to highlight Yes and press the EN-
TER button.
Your password will be deleted. 
						

							E-53
Enable/Disable .............. This turns the Security function on or off.
Keyword ........................Enter an appropriate keyword when you use
the Security function.
(Up to 10 characters can be used.)
The Security function is available only when
your keyword is entered.
Use Protect key ............ Check this box to lock your projector when
using a PC card. To use a keyword without
a PC card, do not check this box.
Drive ............................. Switches between PC Card slot 1 and 2.
Read ............................. Reads data of a PC card.
Register ........................ Registers data of the PC card.
The Security function is not available unless
at least one PC card is registered. (if the
“Use Protect key” check box is selected)
Up to 5 PC cards can be registered.
Delete ........................... Deletes data of a registered PC card.
To set up a keyword to enable the Security function without using
a registered PC card.
1. Use the SELECT 
 button to select “Keyword” and use the soft-
ware keyboard to enter a keyword.
NOTE: Please make a note of your keyword.
2. Use the SELECT 

 button to select “Enable” and use the SELECT
 button to select “OK”, then the Security function will be enabled.
An “Are you sure?” message will appear. Use the SELECT  but-
ton and press the ENTER button.
The Security function takes effect.
To register a PC card as a protect key.
1. Insert a PC card into the PC card slot of the projector.
2. Use the SELECT 

 button to select Use Protect Key and press
the ENTER button.
3.Use the SELECT 

 button to select Read and press the ENTER
button.
Data of the PC card will be read into the projector.
4. Use the SELECT 

 button to select Register and press the EN-
TER button.
Downloaded data will be registered and be displayed in the list win-
dow.
Security
The Security function enables you to protect your projector so that the
projector will not project a signal unless you enter a keyword. There is
also an option to lock the projector by using a registered PC card as a
protect key. Once you have registered your PC card as a protect key,
you are required to insert the registered PC card into the PC card slot of
the projector each time you turn on the projector. You can enable the
Security function by using a keyword only.
5. Use the SELECT 
 button to select Keyword and use the soft-
ware keyboard to enter a keyword.
NOTE: To use a PC card as a protect key, you must also set up a keyword.Please make a note of your keyword.
This completes registration of your PC card.
To enable Security, use the SELECT 
 button to select Enable and
use the SELECT 
 button to select OK and Security function will
be enabled. An “Are you sure? message will appear. Use the SELECT
 button and press the ENTER button.
The Security function takes effect.
To turn on the projector when Security is enabled (when using your
keyword only).
1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect
that the projector is security-protected.
2. Select [Projector Options] 
→ [Security] from the menu and press the
ENTER button.
The Release Code input screen will be displayed.
3. Enter your keyword in the Release Code input screen.
You can view the projected image.
NOTE: Do not forget your keyword. However, if you forget your keyword, NEC
or your dealer will provide you with your Release Code. See more information
at the end of this section.
To turn on the projector when Security is enabled (when using a
PC card as a protect key).
1. Insert your registered PC card into the PC card slot.
2. Press and hold the POWER button for a minimum of two seconds.
The projector will turn on and then recognize the PC card. Once the
image has been projected, it will stay on without the PC card.
•The security disable mode is maintained until the main power is turned
off (by setting the main power switch to O or unplugging the power
cord).
In the following cases you will be asked to check the protect key or
input the keyword:
(1) When OK is selected at an image for which security is set and
the power is turned off then back on
(2) When the main power is turned off then back on while the secu-
rity function is enabled
(3) When you attempt to display an image for which security is set
while the security function is enabled
•Blanks (spaces) cannot be used in the Keyword section.
To delete PC card data you registered.
1. Use the SELECT 
 button to select Delete and use the SELECT button to select the list window.
2. Use the SELECT 

 button to select the PC card data you wish to
delete.
3. Press the SELECT 
 button to select Delete and press the ENTER
button.
The PC card data will be deleted. 
						

							E-54
Tools
Provides tools for setting sleep timer, capturing images, displaying files
or changing your background logo in a PC Card and drawing.
NOTE: The Capture and PC Card Files features are required for a PC card.
Using Sleep Timer
1. Select your desired time between 30 minutes and 16 hours: Off, 0:30,
1:00, 2:00, 4:00, 8:00, 12:00, 16:00.
2. Select “Set” and press the ENTER button on the remote control.
3. The remaining time starts counting down.
4. The projector will turn off after the countdown is complete.
NOTE:
•To cancel the preset time, set Off for the preset time or turn off the power.
•When the remaining time reaches 3 minutes before the projector is turned off,
the Projector will turn off in 3 minutes message will be displayed on the
bottom of the screen.
Using Capture
Allows you to capture an image from a source that is currently being
displayed. The image is saved as JPEG in the PC card. When you se-
lect Capture from the menu, you will get a tool bar. You can capture an
image directly using the tool bar when the menu is not displayed.
See page E-32.
Using PC Card Files
The PC Card Files feature allows you to display a list of all the files
stored in the PC card so that you can select a file you want to display.
You can also sort files by file name or date, or display the file. See page
E-33.
Changing Background Logo:
You can change the default background logo using the PC Card Files
feature.
NOTE: File size must be 256KB or less. Other file formats than JPEG and BMPare not available. See page E-29.
If youve lost your registered PC card, proceed as follows:
NOTE: NEC or your dealer will provide you with your Release Code in exchange
for your registered keyword and Request Code. See more information at the end
of this section.
1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect
that the projector is security-protected.
2. Select [Projector Options] 
→ [Security] from the menu and press hte
ENTER button.
The Release Code input screen will be displayed as well as your
Request Code (24 alphanumeric characters).
3. Enter your Release Code in the Release Code Input screen.
*If the projector is turned on by entering the Release Code, your Se-
curity will be disabled.
NOTE:
*Some types of PC cards cannot be registered as your protect key.
*It is recommended that you register two or more PC cards in case you lose or
damage your registered PC card.
*Formatting your registered PC card will disable your protect key function.
NOTE:
For additional information visit:
US : http://www.necvisualsystems.com
Europe : http://www.neceurope.com/
Global : http://www.nec-pj.com/NOTE: The progress indicator shows the percentage of remaining bulb life. Thevalue informs you of the amount of lamp and projector usage respectively.
Remaining Lamp Time Display
When the remaining lamp time reaches 0, the Remaining Lamp Time
bar indicator changes from 0% to 100 Hours and starts counting down.
If the remaining lamp time reaches 0 hours, the projector will not turn on
regardless of whether the lamp mode is set to Normal or Eco.
Returning to Factory Default
The Factory Default feature allows you to change adjustments and set-
ting to the factory preset for source except the following:
All Data ......................... Reset all the adjustments and settings for
all the signals to the factory preset except
Remaining Lamp Time, Lamp Hour Meter,
Filter Usage, Projector Usage, Language,
Background, Idle mode, Communication
Speed, LAN Mode, Security and Password.
Including Entry List:Also deletes all the signals in the Entry List
and returns to the factory preset.
Current Signal ............... Resets the adjustments for the current sig-
nal to the factory preset levels.
All the items in Picture, Sound, Image
Options and Picture Management can be
reset. [Page 1]
Source Name
Input Terminal
Entry No.
Horizontal Frequency
Vertical Frequency
Sync Polarity[Page 2]
Signal Type
Video Type
Sync Type
Interlace[Page 3]
Remaining Lamp Time (%)
Lamp Hour Meter (H)
Filter Usage (H)
Projector Usage (H) Using ChalkBoard
The ChalkBoard feature allows you to write and draw messages on a
projected image. See page E-29.
NOTE: This feature is available only when using with a USB mouse. See page E-28.
Help
Contents
Provides an online help about how to use the menus. An underlined link
means that you can move to an adjustment item directly.
Selecting the underlined link and pressing ENTER moves to the corre-
sponding adjustment item.
Information
Displays the status of the current signal, and the lamp and the projector
usage hours. This dialog box has 4 pages.
The information included are as follows:
[Page 4]
Version (BIOS, Firmware, Data) 
						

							E-55
MAINTENANCE
This section describes the simple maintenance procedures you should
follow to replace the lamp and the filter, and to clean the filter, the cabi-
net and the lens.
Replacing the LampAfter your lamp has been operating for 2000 hours (Normal mode on
the standard life lamp) 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 as soon as possible 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 han-
dling.
•DO NOT REMOVE ANY SCREWS except the two lamp case
screws. You could receive an electric shock.
•The projector will turn off and go into stand by mode after 2100
hours (Normal mode on the standard life lamp) of service. If this
happens, be sure to replace the lamp. If you continue to use the
lamp after 2000 hours (Normal mode on the standard life lamp)
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:
NOTE: The optional lamp comes with a flat-head screwdriver.
1. Remove the lamp cover by pushing two grooves lightly with the flat-
head screwdriver.
2. Loosen the two screws securing the lamp housing until the screw-
driver goes into a freewheeling condition. The two screws are not
removable.
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
(Standard life lamp: MT70LP (MT1075), MT60LP (MT1065) or Ex-
tended life lamp: MT60LPS).
5. Secure it in place with the two screws.Be sure to tighten the screws.
6. Reattach the lamp cover.
7. Snap the lamp cover into place.
NOTE: Replacing a new lamp automatically clears the lamp usage hours.
NOTE: The lamp housing has an EEPROM chip memorizing its amount of usage
hours. You can check the amount usage hours in Information of the menu. (The
standard lamp and the optional lamp have an EEPROM chip in it so that when
you remove it, your lamp usage hours are saved in its own memory. The projec-
tor reads the lamp usage hours from the EEPROM chip to display them in Infor-
mation of the menu.)
Interlock 
						

							E-56
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.
3. Use a blower or lens paper to clean the lens, and be careful not to
scratch or mar the lens.
Cleaning the Cabinet and the Lens
Cleaning
Cleaning or Replacing the Filter
The air-filter sponge keeps the inside of the projector from dust or dirt
and should be cleaned after every 100 hours of operation (more often in
dusty conditions). If the filter is dir ty or clogged, your projector may over-
heat.
CAUTION
•Turn off the power and unplug the projector before replacing
the filter.
•Only clean the outside of the filter cover with a vacuum cleaner.
•Do not attempt to operate the projector without the filter cover.
To clean the air-filter:
Vacuum the filter-through the filter cover.
Catch
To reset the filter usage time, from the menu, select [Projector Options]
→ [Setup] → [Page 4] → [Clear Filter Usage Meter] → [OK].
See also page E-47 for resetting the filter usage time.
To replace the filter (sponge):
1. Remove the filter cover by pushing up on the catch of the cover until
you feel it detach.
2. Gently peel off the filter (sponge) and replace it with the new one.3. Reinstall the new filter cover.
NOTE: Do not wash the filter with soap and water. Soap and water will damage
the filter membrane. Before replacing the filter, remove dust and dirt from the
projector cabinet. Keep out dust and during filter replacement.
NOTE: When you replace the lamp, it is also wise to replace the filter. The filtercomes in the same package with your replacement lamp.