NEC Projector HT510/HT410 User Manual

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3. Type in a combination of the four SELECT 
 buttons and press the ENTER button.
NOTE: A keyword must be four to 10 digits in length.
The [Confirm Keyword] screen will be displayed.
4Type in the same combination of SELECT 

 buttons and press the ENTER button.
The confirmation screen will be displayed.
5. Select “Yes” and press the ENTER button.
The Security function has been enabled.
5. USING ON-SCREEN MENU 
						

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To disable the Security function:
1.Select [Advanced] → [Security] and press the ENTER button.
The Off/On menu will be displayed.
2. Select “Off” and press the ENTER button.
The Keyword confirmation screen will be displayed.
3. Type in your keyword and press the ENTER button.
When the correct keyword is entered, the Security function will be disabled.
When the Security function is enabled and the projector is turned on, the projector will display a blue back-
ground.
To display an image at this time, press the MENU button to display the Keyword input screen.
Type in the correct keyword and press the ENTER button. The projector will display an image.
5. USING ON-SCREEN MENU 
						

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NOTE:
•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 cable).
•If you forget your keyword, contact your dealer. Your dealer will provide you with your keyword in exchange for your
request code. Your request code is displayed in the Keyword Confirmation screen. In this example “K992-45L8-JNGJ-
4XU9-1YAT-EEA2” is a request code.
Disabling the Cabinet Buttons [Cabinet Button]
This option turns on or off the Key Lock function for cabinet buttons.
NOTE:
•The Cabinet Buttons setting will not affect the remote control or PC Control Functions.
•When the cabinet buttons are disabled, pressing and holding the EXIT button for about 10 seconds will change the
setting to enable.
Enabling Fan Speed Mode [Fan Mode]
This option allows you to select two modes for fan speed: Auto mode and High speed mode.
Auto ............... The built-in fans automatically run at a variable speed according to the internal temperature.
High ............... The built-in fans run at a fixed high speed.
When you wish to cool down the temperature inside the projector quickly, select “High”.
NOTE: It is recommended that you select High speed mode if you continue to use the projector for consecutive days.
Enabling Power Management [Power Management]
When this option is turned on and there is no input for five minutes or more, the projector will automatically
turn itself off.
Selecting Signal Format [Signal Select]
[Computer]
Normally select “RGB/Component” and the projector automatically detects a component signal. Select “Scart”
for the European Scart signal.
[Video & S-Video System Select]
This feature enables you to select composite video standards automatically or manually.
Normally select “Auto” and the projector will automatically detect the video standard.
In the case where the projector has difficulty detecting the video standard, select the appropriate video stan-
dard from the menu.
This must be done for Video and S-Video respectively.
5. USING ON-SCREEN MENU 
						

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Information
Displays the status of the current signal and lamp usage. This item has three pages. The information included is
as follows:
[Page 1]
Remaining Lamp Time (%)*
Lamp Hour Meter (H)
Projector Usage (H)
*The progress indicator shows the percentage
of remaining bulb life.
The value informs you of the amount of lamp
usage. When the remaining lamp time
reaches 0, the Remaining Lamp Time bar in-
dicator 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.[Page 2]
Horizontal Frequency
Vertical Frequency
Sync Polarity
Video Type
Sync Type
Interlace
[Page 3]
BIOS Version
Firmware Version
Data Version
5. USING ON-SCREEN MENU 
						

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Reset
Returning to Factory Default [Factory Default]
The Factory Default feature allows you to change adjustments and settings to the factory preset for a (all)
source (s) except the following:
[Current Signal]
Resets the adjustments for the current signal to the factory preset levels.
All the items in “Picture”, “Adjustment (except “Wall Color”)” and “Image (except “Keystone” and “Keystone
Save”)” can be reset.
[All Data]
Reset all the adjustments and settings for all the signals to the factory preset.
All items can be reset except Language, Background, Communication Speed, Security, Remaining Lamp
Time, Lamp Hour Meter, and Projector Usage.
To reset the lamp usage time, see “Clear Lamp Hour Meter”.
Clearing Lamp Hour Meter [Clear Lamp Hour Meter]
Resets the lamp clock back to zero. Selecting this option displays submenu for a confirmation.
NOTE: The projector will turn off and go into standby mode after 2100 hours (up to 3100 hours in Eco mode) of service. 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.
5. USING ON-SCREEN MENU 
						

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6. MAINTENANCE
6. MAINTENANCE
This section describes the simple maintenance procedures you should follow to replace the lamp and clean the
projector cabinet.
Replacing the LampAfter your lamp has been operating for 2000 hours (up to 3000 hours in Eco mode) or longer, the lamp indicator
in the cabinet will blink red and the message The lamp has reached the end of its usable life. Please replace the
lamp. will appear. Even though the lamp may still be working, replace it at 2000 (up to 3000 hours in Eco mode)
hours to maintain optimal projector performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Turn the projec-
tor off, wait 60 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 sur-
face might cause an unwanted shadow and poor picture quality.
•The projector will turn off and go into stand by mode after 2100 (up to 3100 hours in Eco mode) hours
of service. If this happens, be sure to replace the lamp. If you continue to use the lamp after 2000
hours (up to 3000 hours in Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be
scattered in the lamp case. 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:
Preparation:
Be sure to insert the included spacer between the rear foot and the projector’s bottom to prevent the projector
from accidentally tilting when inserting the lamp house.
Spacer
Remove the spacer after replacing the lamp. 
						

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6. MAINTENANCE
LENS SHIFTUPSELECT
LAMP
STATUS
POWER
ON/STAND BY
AUTO
ADJ.SOURCEL
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2. Loosen the two screws securing the lamp housing until the screwdriver goes into a freewheeling condition.
The two screws are not removable.
Remove the lamp housing by holding it.
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.
Interlock
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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. 
						

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4. Reattach the lamp cover.
Tighten the lamp cover screw.
Be sure to tighten the screw.
5. After you install a new lamp, select the menu 
→ [Reset] → [Clear Lamp Hour Meter] to reset the lamp usage
hours.
NOTE: When the lamp exceeds 2100 hours (up to 3100 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.
6. MAINTENANCE
LENS SHIFTUPSELECT
LAMP
STATUS
POWER
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3. Insert a new lamp housing until the lamp housing is plugged into the socket.
Secure it in place with the two screws.
Be sure to tighten the screws.
NOTE:
•Align the lamp housing with the guide rail. Make sure the lamp housing plug goes to the socket correctly.
•If both screws are not tightened securely, an image may not be displayed correctly.
In this case, apply firm pressure to the portion of asterisk (
) in the above drawing to seat the lamp housing into thecase.
CAUTION
•Do not use a lamp other than the replacement lamp (LH01LP).
Order this from your dealer.
SocketGuide rail
() Push here. 
						

							E-48
Cleaning the Cabinet and the Lens
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.
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6. MAINTENANCE 
						

							E-49
7. TROUBLESHOOTING
This section helps you resolve problems you may encounter while setting up or using the projector.
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 enabled.
The projector is cooling down.
The projector is turned on.
The projector is in Standby.–
Wait for a moment.
–
Wait for a moment.
–
–
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightRed
Green
Orange1 cycle
(0.5 sec On,
2.5 sec Off)
2 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)Normal
Lamp cover error or lamp hous-
ing error
Temperature error
Fan error
Lamp error
Re-firing the lamp
Cabinet button locked–
Replace the lamp cover or lamp
housing correctly.
The projector is overheated.
Move the projector to a cooler
location.
Fans will not work correctly.
Lamp fails to light. Wait a full
minute and then turn on again.
The projector is re-firing.
You have pressed cabinet but-
ton when Cabinet Button is
locked.
Status 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.
Replace the lamp.
–
Lamp Indicator
7. TROUBLESHOOTING