Note the following things A noise occurs because the internal pressure of the New Super High pressure lamp gets extremely high. The unit is designed so that no pieces of glass come out of it when the lamp explodes. However, the gas inside of the lamp can escape and looks like white smoke. It will not cause any fire. Remedy If a lamp explodes in a product, there will be pieces of lamp inside. Do not replace the lamp. Return the product to the sales office or agent of purchase. Even though the lamp has exploded, never try to replace the lamp by yourself. The lamp pieces could cause injury. Replacing the lamp Be sure to turn the lamp off and disconnect the power cord when the fan stops, and wait an hour or more before replacing the lamp. Replacing the lamp during operation or just after the power is turned off may cause burns due to heat. Refer to Lamp Unit Replacement on page E-54 for the procedure. Replacing / cleaning the air filter Be sure to disconnect the power cord when the cooling fan stops before removing the air filter. Removing the air filter while the cooling fan is rotating could cause a burn. Refer to Cleaning the Air Filter on page E-56 for the procedure. Avoiding malfunctions and accidents Adjust the Adjustable feet to keep the projector horizontal. Using the projector in a tilted status may cause injury if it turns over. Refer to Adjusting the Tilt on page E-18 for the adjusting procedure. Do not disassemble the manganese batteries Do not short-circuit, disassemble, or burn the manganese batteries. Doing so could cause the batteries to generate heat or explode due to the leaked solution, resulting in fire, injury, or damages to the surrounding area. Do not do the followings Do not put anything heavy on the projector. Do not step on the projector, rack, or stand. Do not hold or hang on the projector. Doing so could cause the projector to turn over or break, resulting in injury. Especially be careful if small children are near. Do not use the rack unless the casters are locked when placing the projector on a rack with casters. Doing so may cause the projector to move or turn over, resulting in injury. Do not turn the lamp on/off within one minute after it is turned off/on. Extremely high voltage is generated in the lamp just after it is turned on. Turning the lamp on/off too frequently could cause the lamp to deteriorate or break, resulting in malfunctions of the projector. Do not project an image with the lens cap attached. Moving the projector Be sure careful of the glass surface when moving the projector while holding the handles with both hands. If not inserted fully, the materials cover may get loose and fall off while you carry it.

REFRESH

ZOOM POSITION ROTATION V

i o !0

RESIZE

P in P

LIVE IMAGE KEYSTONE

!2 !3 !4 !5 !6 !7
Name q POWER Button w POINTER TYPE Button e POINTER/SET Button

r SCROLL Button

t MUTE Button y MENU Button u REFRESH/FREEZE Button
i RESIZE Button o INPUT SELECT Buttons (OHP, PC1/PC2, VIDEO)

!0 P in P Button

Description Page to see E-20,29,41 Press this button to turn the lamp on or off. Only this button can be used when the lamp is off. Press this button to select a pointer type. E-34,39 E-48 Press this button to apply a menu item in the menu. Display the pointer when the menu is not displayed. Press it E-34,38 again to hide the pointer. E-47 Set and select the variable and adjustable values on the menu display. Move the zoom position when using the zoom display. E-32,38 Move the pointer when the pointer is displayed. E-34,38 E-34,40 Press to stop projecting the image without turning off the lamp. Press it again and the image will reappear. Press this button to display the menu display, or select E-42 menus. E-32 Press to refresh the projected image when OHP is selected. Press it again to refresh the projected image if you have switched or moved the document. E-39 Press to freeze the projected image when PC or video is selected. Press to change the size of the projected image when OHP E-33 is selected. Press to do automatic synchronous adjustments when PC E-38 is selected. Press this button to switch the input screen. E-29 When PC is selected, images from the PC input terminal are projected; when VIDEO is selected, images from the video source input terminal are projected; or, when OHP is selected, an image of the printed matter or document placed on the scanner on the main unit is projected. Press to display the image from the video source that is E-40 connected in a window on the lower right side of the projected image when PC selected.

!1 ZOOM Buttons

!2 POSITION Buttons

!3 BRIGHTNESS Buttons

!4 VOLUME Buttons
!5 OHP STORED IMAGE Buttons
These buttons adjust the zoom ratio. Pressing the button reduces the image, and pressing the button enlarges the image. Press to change the orientation of the projected image when OHP is selected. Press the button to reverse the top and bottom of the projected image. Press the button to switch between vertical display and horizontal display. These buttons adjust the brightness. Pressing the button darkens the projected image, and pressing the button lightens the projected image. Adjust the volume when PC or video is selected. Press the button to reduce the volume. Press the button to increase the volume. A maximum of eight pages of images are stored to internal memory when the display is refreshed, when OHP is selected. Press to access those images.

Typical Installation

1. Select the installation site
Place the projector on an even and stable surface such as a table.

;; ;; ;; ;; ;; ;;

2. Connect the power cord (supplied), and press the button.)

button (or

3. Turn the direction of the lens so that it is perpendicular to the screen.

;;; ;;; ;;; ;;; ;;; ;;;

Turn the unit to the left or right so that the top and bottom lines of the projected image are parallel.
4. Adjust the adjustable feet to move the projected image to the desired height. (Adjust the tilt angle between 0 to 7.)
The position of the projected image can be moved up or down by adjusting tilt.

Compensating Keystone

If the projected image is distorted, you can eliminate the distortion by doing keystone compensation.
How to Compensate Keystone
Press the button (or the button on the remote controller) to display the Keystone menu.

Keystone

Hor izontal Ver tical MENU SET Set standard Quit

Keystone menu

Press the button to make the top of the projected image narrower.
button to make the Press the bottom of the projected image narrower.
Press the v button to make the left side of the projected image narrower.
Press the u button to make the right side of the projected image narrower.
button (or the Press the compensation).
button on the remote controller) to return to 0 (No
When keystone compensation is performed, the resolution at the edges of the projected image is reduced, making small characters difficult to read. To prevent this, place the projector on as level a surface as possible, and set the Keystone menu to 0 (No compensation). As image processing is performed for keystone compensation, displayed images (characters, etc.) are displayed slightly blurred when keystone compensation is used compared with when it is not used. When displaying an image with VGA resolution less than 640 x 480 pixels with a excessive horizontal keystone compensation may cause parts of the image to become fuzzy. See page E-25 for more information. The degree to which keystone compensation can be adjusted depends on the image signal. If the horizontal value is adjusted to its largest (or smallest) the vertical adjustment value can not be moved in the plus direction when doing keystone compensation.
Connecting to a Personal Computer

Cautions on Connection

Before connecting other devices, turn off each device to protect the projector and other connected devices. For details of how to connect and use devices connected to the projector, refer to the Users Manual for each device. Sometimes images are not displayed on the screen properly when they are displayed on a notebook PC LCD as well. If this happens, turn the notebook PC display off to remedy this. The method for turning off a notebook PC display varies according to the notebook PC manufacturer. For details, refer to the Users Manual of the notebook PC. You may not be able to connect the projector depending on the model of personal computer and personal computer settings. Consult your dealer for details.

When the input signal resolution is lower than 1024768 dots, enlarge the display. When it is higher, compress the display. Signals marked with an * may become fuzzy if too much vertical keystone compensation is applied. When using one of these signals, set the keystone compensation so that it does not distort the image.

Basic connections

To RGB output connector on PC To analog RGB connector on monitor
The connector cable model No. differs according to the type of PC. To audio output terminal on PC
Fix the connector cable using the screw-in fasteners.
To speaker input terminals Terminal panel on the back of the DT20 main unit
The personal computer has input terminals for both image and sound for 1 and 2. Hook up the sound and image to the corresponding terminals. If they are not hooked up to the corresponding terminals, the image and sound will not be output correctly. See page E-11 for information about the input and output terminals.
Connecting to IBM NOTE and Compatible

Signal cable (supplied)

To RGB-IN1 or RGB-IN2 terminal DT20
After you have connected the supplied cable, check the external CRT output/internal LCD output states and set the mode in the software running on the PC. The connection with the PC will not be made if you do not set the external CRT output mode.
Connecting to an IBM Desktop and Compatible
Cable supplied with monitor
To RGB-OUT terminal To RGB-IN1 or RGB-IN2 terminal DT20

Signal Cable (supplied)

When connecting the projector directly to the PC without using the monitor supplied with the PC, you can connect by the supplied cable only.
Connecting to Apple Macintosh Notebook
Excluding Power Book Duo, 100, 140, 145B, 150, 170
Display adapter for Power Book
Conversion adapter (not supplied)
To RGB-IN1 or RGB-IN2 terminal
When connecting the Power Book Duo, the Duo Dock or Mini Dock is required. The Power Book display adapter is sometimes not supplied with the Power Book. If it is not supplied, buy a separate display adapter from a Macintosh computer store. (Apple M3927LL/A or equivalent)
Connecting to a Video Source or DVD Player
Images from a video source or DVD player can be projected on a large screen.

Synchronized Adjustments

Press the RESIZE button to do automatic synchronous adjustments of each setting to the most suitable status on the Sync Adjust menu (Page E-44).

Adjust the volume.

Press the Press the
button to reduce the volume. button to increase the volume.
Press the FREEZE button to freeze the image from the personal computer or video. To unfreeze the image, press the FREEZE button again, or press the LIVE button.
You can not adjust the brightness when the image is frozen. Adjust the brightness before pressing the FREEZE button. Press the INPUT SELECT button to unfreeze the image when it is frozen.
Display images from the personal computer and the video at the same time.
If you select personal computer input while a video source and a personal computer are both connected, you can display video images in the window at the lower right side of the projected image. Set Picture in Picture to ON on the quick menu to display video images. See page E-51 for details.
The P in P button is only enabled when a personal computer is selected. You can not use it when video is selected. You can not use the picture in picture function if the signal from the personal computer is not being input.
Press the MUTE button to stop projecting the image without turning off the lamp. You can select the image projected while the image is muted from the following two images. q Project a completely black image while the projected image is muted. Set Black in Mute mode on the Setting 2 menu (page E-45). While the image is muted, the projecting black image icon is displayed on the top right side of the projected image. w Project an arbitrary image while the projected image is muted. Set logo in Mute mode on the Setting 2 menu (page E45). While the image is muted, the projecting image icon is displayed on the top right side of the projected image.

How to Quit

Turn the lamp off.
Press the POWER button. (Hold down for at least one second.)
Press POWER button again to turn off. is displayed on the projected image.
Press the POWER button again. The LAMP/COVER LED blinks green, and then goes out after about one minute. The ON/STANDBY LED lights (red.)
The lamp will not turn on even if you press the POWER button if the LAMP/COVER LED is blinking green. To turn the lamp on again, press the POWER button again after the ON/STANDBY LED lights red.
Disconnect the power cord.

<Language Selection Menu>
Setting Item Description English Sets the language used in display. Deutsch Franais Italiano Espaola Svenska

Projection Mode

Projection mode Front Rear
Menu Item Projection mode

Setting Item Front Rear

Description Adjusts the projection mode according to the installation method (front (standard) projection or rear projection).
<Projection Mode Menu>
Video Select (only when video source input is selected)

Menu Item Video select

Setting Item AUTO PAL B,G,H,I NTSC 3.58 SECAM NTSC 4.43 PAL M PAL N PAL 60
Description Selects the input signal type.
<Video Select Menu>

Basic Operation

The following describes basic operations in the following menus: Image Adjustment, Sync Adjustment, Setting, Language Selection, Video Adjustment, and Projection Mode.
Press the button (or the remote controller).
The main menu is displayed.

MENU Image adjustment

button on the
Sync adjustment Setting 1 Setting 2
Language selection Projection mode
<Example: When PC input is selected>
Press the buttons to select the item you want to set.
MENU Image adjustment Sync adjustment

POWER MENU MUTE

Setting 1 Setting 2 Language selection

FREEZE POINTER/ SET

Projection mode Quit
ZOOM POSITION ROTATION V RESIZE H OHP BRIGHTNESS
<Example: When Sync adjustment is selected>
The menu for the item you want to set is displayed. To return to the initial settings when you bought the projector, select Standard and press the button (or button) in the Image adjustment, Sync adjustment, Setting or Video adjustment menus.

SET POINTER

Sync adjustment Clock

Phase Horizontal

<Example: Sync Adjustment Menu>
When selecting ON or OFF.
Menu items that require selection of ON or OFF are Auto power off, Start up display, and Economy mode. For details of these menu items, see page E-45.

3 4-1 4-1

ZOOM POSITION ROTATION V H BRIGHTNESS
<Example: When Auto power off is selected>

Press the OFF.

buttons to select ON or
Lamp usage time Input signal
Auto power off Start-up display Economy mode

4-1 4-2

When adjusting in single point units
Menu items that require adjustment in single point units are Contrast, Red, Blue, Clock, Phase, Horizontal, Vertical, Hue, Color, and Sharpness. For details of these menu items, see page E-43.

Sync adjustment Clock Phase Horizontal 0 0

POSITION ROTATION V

<Example: When CLOCK is selected>

Press the

buttons to adjust the setting.

Sync adjustment

Clock Phase

Horizontal

4-1, 5 4-2 5

Others

Other menu items include Language selection, Projection mode and Video select. For details of menu items, see page E-46.
Language selection English Deutsch Franais Espaola Svenska

Italiano

4-1, 5
<Example: When English is selected from the Language Selection menu>
Press the buttons to select Quit and then press the button (or button on the remote controller).
This returns the display to the main menu. The display automatically disappears, and adjustment values are stored to memory if buttons are not operated for about 30 seconds.

Quick Menu

The Quick menu has frequently used items. This section describes the items and functions that can be set on the Quick menu. Press the button (or the button on the remote controller) to display the quick menu.

When OHP Is Selected

QUICK MENU Movie mode Scanner lamp Full / Window ON / OFF

Menu Item Movie mode

Stored images clear all
Full/Window When Full is selected: The entire projected image shows the video image. The document scanning speed is 1 frame per second. When Window is selected: The window on the bottom right side of the projected image shows the video image. The document scanning speed is 20 frames per second. ON/OFF Sets whether the OHP scanner lamp is on or off. Deletes the entire OHP stored images from the internal memory.

Scanner lamp*

Stored images clear all *If the ambient temperature is low when the scanner lamp is turned ON, the OHP images will appear a little red.
When the OHP stored image Is Displayed
QUICK MENU Display the next stored image Display the previous stored image Stored images clear all
Menu Item Display the next stored image Display the previous stored image Stored images clear all Menu Item Picture in Picture*

Setting Item

Description Displays the image following the currently displayed image from stored image. Displays the image previous to the currently displayed image from stored image. Deletes the entire OHP stored images from the internal memory.

When PC Input Is Selected
QUICK MENU Picture in Picture ON / OFF
Description Set this item to ON todisplay images, from the video source that is connected, in the window on the lower right side of the projected image.
* Does not display without input from the computer.
When VIDEO Input Is Selected

No quick menu.

Maintenance

Fault Protection

Your projector is provided with internal protection circuits for preventing fire and damage to internal components due to abnormal temperature.
When the LAMP/COVER LED is blinking:
Action 1. Disconnect the power plug from the power outlet. 2. Correctly install the air filter. For details, see Cleaning the Air Filter on page E-56. 3. Correctly install the lamp unit cover. For details, see Lamp Unit Replacement on page E-54.
When the temperature LED is blinking or on.
Action 1. Disconnect the power cord from the power outlet. 2. Check the following and take corrective actions.
Is the ambient temperature more than 35C(95F)?
Use your projector within an ambient temperature of 0C to 35C (32F to 95F).
Are any vent holes blocked?
Place your projector away from walls and other objects. See Do not block the air vents on page E-4.
Is the air filter clogged?
Clean the air filter. See Cleaning the Air Filter on page E-56.
A probable cause is an internal circuit problem.
Ask your dealer for repair.
* When the TEMP LED is OFF, your projector is working properly. * Replace the lamp at the same time when the LAMP/COVER LED is on. For details on how to replace the lamp, see page E-54. * A blinking TEMP LED is a warning that the temperature is too high. If the operating environment improves within 10 seconds after the LED starts blinking, the warning will stop. (When the TEMP LED goes out, normal operation continues.) If the TEMP LED blinks for more than 10 seconds and the operating status does not change, the LED stops blinking and stays on and the lamp turns off.
When the power fails (all LEDs are off when the power is turned ON) Action 1.Disconnect the power plug from the power outlet. 2.Check the following and take corrective actions.

Is the ambient temperature more than 35C (95F)?
Call qualified service personnel.

Lamp Unit Replacement

The target replacement time of the lamp used on this projector is 1400 hours. (This may be shortened depending on the conditions of use.) Since there is a high possibility of lamp explosion if the cumulative usage time exceeds more than 1500 hours, the power to the lamp is cut off at 1500 hours.In the following instances where the cumulative usage time of the lamp is more than 1400 hours, replace the lamp unit (sold separately). When the projected image becomes dark or projected colors are unsatisfactory, the lamp has reached the end of its life. In this case, replace the lamp unit. When the message shown below is displayed while the lamp is on (This appears when the cumulative usage time of the lamp is more than 1400 hours.)
When Lamp usage time on the menu display has reached 1400 hours, the LAMP/ COVER LED blinks red. The lamp usage time is displayed in the Setting 1 menu for confirmation. (For details, see page E-45.) When the LAMP/COVER LED is on red without the lamp lighting. (When the cumulative usage time of the lamp is more than 1500 hours.)
Do not replace the lamp unit immediately after you have turned the projector off. The lamp becomes very hot and may cause a burn injury. Turn off the lamp, disconnect the power cord from the power outlet, and then wait at least one hour before replacing the lamp. Do not touch the lamp with your hands. This may result in reduced brightness or reduced lamp life. This projector contains many glass components (e.g. a lamp and mirrors). If these glass components break, handle them with care to prevent personal injury from glass fragments. Contact your dealer or an NEC qualified service presonnel for repair.
This lamp unit is not compatible with the lamp unit for DT100. Specify the exclusive lamp unit DT02LP.

Procedure

Remove the lamp unit cover.
Loosen the lamp unit cover screws using a flathead screwdriver.
Loosen the lamp unit retaining screws.
Loosen the lamp unit screws. (2 pieces)

Draw out the lamp unit.

Hold the handle and lift the lamp unit upward.

Install a new lamp unit.

q Hold the lamp unit and push it in. w Make sure that the two positioning protrusions fit properly into the holes. e Tighten the two lamp unit retaining screws. r Align the three tabs on the lamp unit cover with the slots on the projector to attach it. Then tighten the two lamp unit cover retaining screws.

OHP PC1/PC2 VIDEO MENU

Reset the lamp usage time.
Perform the following in the standby state. Press the , and buttons once in that order with the button held down. The LAMP/COVER LED then blinks green.

The lamp will not light unless the air filter is mounted.

Troubleshooting

If you think a problem has occurred, check the following items before asking for a repair.
Symptom Power is not on. To be Checked Verify that the power cord is connected. Verify that the lamp unit cover is installed. Verify that the air filter is installed. Verify the internal temperature. The lamp does not light due to a protection control if the temperature is too high. Verify that the lamp usage time is less than 1500 hours. No image is displayed. Verify the selection of the connected input. Verify that the cable for the connected device is appropriately connected. Verify sure that Brightness or Contrast in the Image Adjustment menu is not set to minimum. Verify that the resolution on the PC is correctly set. Verify the functions of the PC. The image is distorted. The image is blurred. Verify that the projector is placed properly. Keystone compensation may be applied. Check the focus. Make sure that the projection distance is within the focusing distance. Keystone compensation may be applied. Verify whether the lens cap is on. The image is flickering. The image is out of alignment. The color is out of alignment. No sound. The cabinet produces a cracking sound. Adjust Phase in the Sync Adjustment menu. Check the setting of the Sync Adjustment menu. Adjust Phase in the Sync Adjustment menu. Make sure that the setting in the Volume menu is not set to minimum. A sound is produced when the cabinet slightly expands or contracts due to the changes in the room temperature. This will not affect projector performance. The TEMP LED lights up or blinks. Follow the procedures for protection against overheating. The LAMP/COVER LED lights red. Make sure that the air filter is not disconnected. Make sure that the lamp unit cover is in place. Check whether the lamp usage has exceeded 1500 hours. The remote controller does not work. Make sure that the battery is not blown or worn. Make sure that other light from lighting, for example, is not entering the remote control sensor. Make sure that the remote control sensor of the main unit is not obstructed. Make sure that the projector is not installed near inverter-driven equipment. The image may not be positioned correctly or the display may be compressed, when personal computer input is selected. Press the RESIZE button to do automatic synchronous adjustment. Make adjustments on the Synch adjustment menu. E-38 E-44 E-17 E-9, 10 E-52 E-56 E-54 E-54 E-17 E-9, 10 E-21 E-29 E-44 E-44 E-44 E-39 E-24 E-24 E-20 E-21 E-30, 37 E-19 E-43 E-54 E-29 E-22, 28 Page(s) E-20 E-54 E-54 E-56 E-52

The projection lamp does not light. Verify that the lamp has not blown.

Specifications

Model Name Type DTprimary Color LCD Shutter Projection Type 1.0 inches x 3 Panels, Aspect Ratio 4:3 LCD Panel Size Poly Silicon TFT Active Matrix with Micro Lens Array Drive System Number of Pixels 786,432 pixels (1,024 x 768 dots)3 Stripe Arrangement Manual Zoom: 1 to 1.25x, f=36.5 mm to 45.6 mm, F1.7 to 2.2 Projection Lens Optical Source 260W Super High-pressure Mercury Lamp 32-300 inches diagonal (projection distance 1.4 to 13.9 m) Image Size Full color (16,770,000 colors) Color Reproducibility Brightness 2800 ANSI lumens Horizontal 21 to 80 kHz, Vertical 50 to 85 Hz Scan Frequency Maximum Resolution At RGB signal input 1,024 867dots (Compressed display of 1,600 002,1dots is possible.) 2 Mega-pixels color CCD camera OHP Scanner 288 mm 612mm (11.3 in 5.8in) Separate Signal System PC Signal system Analog: 0.7Vp-p/75 (Analog Video signal Separate/composite: TTL Level (positive/negative) RGB Input) Sync Signal Sync on green: 0.3 Vp-p (Negative) 15 pin Mini D-sub 2 ch Terminal Panel NTSC/PAL/SECAM/PAL-N/PAL-M/PAL60/NTSC4.43 Video Signal system RCA Pin Jack 1 ch, S-Video (Mini DIN4-pin) 1ch Input Terminal 0.7Vp-p/75 Monitor Video signal Separate TTL Level, Negative Polarity Output Sync Signal 15 pin Mini D-sub 1 ch Output Terminal 0.4Vrms/47K PC Audio Signal Stereo Mini Jack 2 ch Input Terminal 0.4Vrms/47K Video Audio Signal RCA Pin Jack 1 ch Input Terminal 0.4Vrms/47K Monitor Audio Signal Stereo Mini Jack 1 ch Output Output Terminal 1 W 2stereo Audio Output Temperature: 0 to 35C (32 to 95F), humidity: 20 to 80% (no condensation) Operating Range of Temperature and Humidity 100-120/220-240VAC , 50/60 Hz Power Source 390W (100-120VAC), 370W (220-240VAC) Power Consumption 4.5A (100-120VAC), 2.2A (220-240VAC) Input Current 400 (W)( 513D)( 541H) /15.7 (W)( 4.21D)( 7.5H) External Dimensions (mm/in) (not including protrusions, Including the cover) 7.3kg Weight Power Cord (3 m/3.3 yd), Remote Control, User's Manual, Warranty, Battery Accessories (AA x 2), PC cable, Lens cap UL Approved (UL 60950, CSA 950) Regulation Meets DOC Canada Class A requirements Meets FCC Class A requirements Meets AS/NZS3548 Class A Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3) Meets Low Voltage Directive (EN60950, TUV GS Approved)

Audio input/output

Video Input/Output
For additional information visit: US : http://www.necvisualsystems.com/ Europe : http://www.nec-europe.com/ Global : http://www.nec-pj.com/ LCD panels are inherently susceptible to pixel defects. For additional information regarding pixel data, please contact your local NEC sales office. The specifications are subject to change without notice.

Main Part Specification

Specifications and designs are subject to change without prior notice in order to improve the product.