Related Manuals for NEC DT20
Summary of Contents for NEC DT20
- Page 1 DT20 Multi-Function LCD Projector User’s Manual English Deutsch Français Italiano Española Svenska...
-
Page 2: About Trademarks
Thank you for purchasing the NEC DT20 LCD Projector. Please read this manual carefully in order to use the projector properly. After reading this, please keep it in a safe place together with the warranty sheet. ● Features • Three handy features in a single body. The projector for the multimedia age 1. -
Page 3: Warnings And Safety Precautions
Make sure that no metallic or flammable material can get into the projector through the air vents. • Do not place any objects containing water on top of or next to the projector. • If foreign matter gets inside the projector: •... - Page 4 • Do not put the projector in unstable places. • Do not put the projector in unstable places such as on unstable desks or slopes. Doing so could cause the projector to drop or turn over, resulting in injury.
- Page 5 Have the internal components cleaned by a retailer about once a year. There is a risk of fire or faulty operation if the inside of the projector gets dusty and is not cleaned for a long time. For best results, the projector should be serviced before the wet season brings damp conditions.
- Page 6 • 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 •...
- Page 7 Moving the projector with cables connected may cause fire or electric shock if the cables are damaged. • If you do not plan to use the projector for a long time, disconnect the power cord for safety. • DO NOT REMOVE ANY SCREWS except the lamp cover screw and two lamp unit screws.
-
Page 8: Table Of Contents
Buttons and Indicator Lights ... E-12 Remote Controller ... E-15 Remote Control Operations ... E-17 Battery Replacement ... E-17 How to Install the Projector ... E-18 Installation Sequence ... E-18 Adjusting the Tilt ... E-18 Projection Distance and Projected Image Size ... E-19 Typical Installation ... -
Page 9: Part Names And Functions
Lens cap The anti-theft lock is compatible with smart cable lock and other security wires. Contact the following for more information about the products. © 1998 Kensington Technology Group. Kensington Technology Group 2855 Campus Drive San Mateo, CA 94403, U.S.A. - Page 10 Scanner Place documents or printed matter here to project images when OHP is selected. See page E-31 Sensor Adjustable Feet Air Vent B Air is discharged from the inside to the outside through this vent. Lamp Unit Cover (bottom of main unit) The scanner lamp unit is housed inside this cover.
-
Page 11: Terminal Panel
This exclusive terminal is used when performing maintenance and in-house tests. It cannot be used for other connections. Audio output terminal for DT20 This terminal outputs audio (either from the PC or video source) that is currently being input. In the standby mode, PC audio is output. - Page 12 LAMP/ COVER TEMP MUTE BRIGHTNESS Description temperature inside the projector has built up. then remains on. remains off. blinking pattern in this case is longer than other instances.) remains on after lamp usage time exceeds 1500 hours. in place. when the lamp is on.
- Page 13 o ZOOM Buttons • These buttons adjust the zoom ratio. Pressing the button reduces the image, and pressing the enlarges the image. !0 MENU Button • Display the menu display. !1 SCROLL Button • Set and select the variable and adjustable values on the menu display.
-
Page 14: Buttons And Indicator Lights
■ Buttons and Indicator Lights Name !2 RESIZE Button • Press to change the size of the projected image when OHP • Press to do automatic synchronous adjustments when PC !3 POSITION Buttons • Press to change the orientation of the projected image !4 LIVE IMAGE Button •... -
Page 15: Remote Controller
Name q POWER Button • Press this button to turn the lamp on or off. • Only this button can be used when the lamp is off. w POINTER TYPE Button • Press this button to select a pointer type. e POINTER/SET Button •... - Page 16 !1 ZOOM Buttons • These buttons adjust the zoom ratio. Pressing the button reduces the image, and pressing the enlarges the image. !2 POSITION Buttons • Press to change the orientation of the projected image when OHP is selected. Press the top and bottom of the projected image.
-
Page 17: Remote Control Operations
• Use the remote control within about seven meters (7.7 yards) from the remote control sensors (on the front and rear sides) of the projector and within 10 degrees to the left and right. This distance may become shorter as the battery wears down. -
Page 18: How To Install The Projector
• Vent A on the bottom of the main unit takes in air to cool the inside of the projector. As air is taken in by large suction force, cloth or paper may be sucked in against the vent. If this happens, the temperature inside may build up, and cause an accident or failure. -
Page 19: Projection Distance And Projected Image Size
Otherwise, image quality may deteriorate as dirt builds up on the lens, mirrors and other optical components. • Do not install the projector in a small room with poor air circulation or any place where the air vents may be blocked. -
Page 20: Typical Installation
■ 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.) 90° 3. Turn the direction of the lens so that it is perpendicular to the screen. -
Page 21: Compensating Keystone
• 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). -
Page 22: 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 User’s Manual for each device. -
Page 23: About Rgb Video Output
13 12 NOTE • This projector uses a 15-pin RGB input and an analog type output terminals. For this reason, it cannot be connected to a digital output type personal computer. • Plug and play is not supported. -
Page 24: When Images On The Personal Computer Screen Are Not Projected
When this is displayed, check the following. Try restarting the personal computer. The DT20 is sometimes not recognized by the PC if it is connected after the PC is started up. If this happens, images are not projected as external output signals are not output from the PC. -
Page 25: Input Signal Compatibility Table (Pc Video Input Terminal
■ Input Signal Compatibility Table (PC video input terminal) The DT20 supports the signals marked by ● in the following table. Note that on some PC mod- els, flickering and blurring occur in the projected image. If this happens, adjust the projected image in the Sync Adjustment menu. -
Page 26: Basic Connections
PC connector on monitor The connector cable model No. differs according to the type of PC. Terminal panel on the back of the DT20 main unit Signal cable (supplied) To RGB-IN1 or RGB-IN2 terminal E-26 To audio output... - Page 27 Connecting to an IBM Desktop and Compatible Cable supplied with monitor NOTE 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...
-
Page 28: Connecting To A Video Source Or Dvd Player
■ Connecting to a Video Source or DVD Player Images from a video source or DVD player can be projected on a large screen. Terminal panel on the back of the DT20 main unit To Video Output Terminal DVD Player NOTE •... -
Page 29: Basic Operation
When PC/VIDEO is selected and the device is not connected, or the connected device is not turned on, “No input” is displayed. Connect the power cord. The projector is in the standby mode, and the power indicator LED lights (red). Press the POWER button. The fan spins, the LED lights, and the ON/STANDBY LED lights (green). -
Page 30: Basic Operations In The Ohp Mode
■ Basic Operations in the OHP Mode NOTE The projected image in the OHP display (projection of actual object) may be slightly distorted as a very wide- angle lens is used. Main Unit Operation KEYSTONE Remote Control Operation KEYSTONE Check the OHP’s initial screen. When you select OHP, the “Set your document and press the REFRESH button”... - Page 31 NOTE Objects can be projected even if the materials cover is not closed. However, unwanted objects will also be picked up, making the projected image difficult to view. Main Unit Operation BRIGHTNESS Remote Control Operation BRIGHTNESS NOTE When projecting dark documents or printed matter, adjust to lighten the projected image, and when projecting bright documents or printed matter, adjust to darken the projected image.
- Page 32 Main Unit Operation REFRESH FREEZE Remote Control Operation REFRESH FREEZE Main Unit Operation LIVE IMAGE Remote Control Operation LIVE IMAGE Main Unit Operation ZOOM Remote Control Operation ZOOM Main Unit Operation SCROLL Remote Control Operation POINTER/ Freeze the projected image. Press the REFRESH/FREEZE button to project a frozen image, of the material that you set in step five, on the white area of the projected image.
- Page 33 When you press the REFRESH button and the image freezes, a maximum of eight pages of the OHP images are stored on the internal DT20 memory. Press the OHP STORED IMAGE button to view and change the stored images on the internal memory. See page E-40 for details.
- Page 34 Main Unit Operation POINTER Remote Control Operation POINTER/ NOTE Adjusting the zoom or the brightness while the pointer is displayed may cause it to disappear momentarily, but it will reappear after a short time. Remote Control Operation POINTER TYPE Main Unit Operation MUTE Remote Control Operation MUTE...
- Page 35 Document Orientation and Scan Size Place the document or printed matter face down at the orientation shown in the figure below. The maximum size that documents or printed matter can be scanned is 216 mm/8.5 in (vertical) and 288 mm/11.3 in (horizontal). For this reason, the projected sizes are as follows when an A4-size sheet of paper is placed at the respective orientations.
- Page 36 When you press the REFRESH button and the image freezes, a maximum of eight pages of the OHP images are stored on the internal DT20 memory. Press the POWER button, then after selecting OHP mode, the image of the first frozen image is stored to position q in the diagram below.
-
Page 37: Basic Operation Of Pc Or Video Input
■ Basic Operation of PC or Video Input Main Unit Operation KEYSTONE Remote Control Operation KEYSTONE Main Unit Operation BRIGHTNESS Remote Control Operation BRIGHTNESS 3,4,5,6,7, 8,10,11,13 Adjust the size of the projected image. Rotate the zoom adjuster on the projection lens to adjust the size of the projected image. - Page 38 Main Unit Operation ZOOM Remote Control Operation ZOOM Main Unit Operation SCROLL Remote Control Operation POINTER/ Main Unit Operation RESIZE Remote Control Operation RESIZE Main Unit Operation POINTER Remote Control Operation POINTER/ NOTE Adjusting the zoom or the brightness while the pointer is displayed may cause it to disappear momentarily, but it will reappear after a short time.
- Page 39 Remote Control Operation POINTER TYPE Main Unit Operation OHP STORED IMAGE VOLUME Remote Control Operation VOLUME Main Unit Operation REFRESH FREEZE Remote Control Operation REFRESH FREEZE NOTE • You can not adjust the brightness when the image is frozen. Adjust the brightness before pressing the FREEZE button.
- Page 40 Remote Control Operation P in P NOTE • 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. Main Unit Operation MUTE Remote Control Operation...
-
Page 41: How To Quit
• Disconnect the power cord from the power outlet if you are not going to use the projector for a long period of time. • After disconnecting the power cord from the power outlet, wait a certain period of time (about 10 seconds) before connecting it again. -
Page 42: Performing Various Adjustments
■ Performing Various Adjustments Menu Structure You can perform various adjustments and make various settings by operating the buttons with the menu display displayed on the projected image. There are two menus, the “Quick menu” on which there are frequently used items, and the “Main menu”... -
Page 43: Description Of Menu Items
Description of Menu Items The following describes each of the menu displays, and the items and functions that can be set in these menu displays. For details of how to set these menu items, see “Basic Operation” on page E-47. ◆... - Page 44 ◆ Image Adjustment (when OHP is selected) Image adjustment Blue Image mode Standard / Natural Gamma PHOTO / TEXT Standard Return <Image Adjustment Menu> ◆ Sync Adjustment (only when PC input is selected) Sync adjustment Clock Phase Horizontal Vertical Standard Return <Sync Adjustment Menu>...
- Page 45 Auto power off Sets the auto power off function ON/ OFF. When auto power off is set to ON, the projector automatically goes to standby mode if no signals are input for a fixed period of time (about 15 minutes).
-
Page 46: Language Selection
◆ Language Selection Language selection English Española Deutsch Svenska Français Italiano Return <Language Selection Menu> ◆ Projection Mode Projection mode Front Rear Return <Projection Mode Menu> ◆ Video Select (only when video source input is selected) Video select Auto NTSC 4.43 PAL B,G,H,I PAL M NTSC 3.58... -
Page 47: Basic Operation
■ Basic Operation The following describes basic operations in the following menus: “Image Adjustment”, “Sync Adjustment”, “Setting”, “Language Selection”, “Video Adjustment”, and “Projection Mode” . Main Unit Operation SCROLL RESIZE MENU POINTER Remote Control Operation POWER MUTE MENU POINTER TYPE REFRESH FREEZE POINTER/... - Page 48 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) in the “Image adjustment”, “Sync adjustment”, “Setting” or “Video adjustment” menus.
- Page 49 Main Unit Operation SCROLL RESIZE MENU POINTER Remote Control Operation POWER MUTE MENU POINTER TYPE REFRESH FREEZE POINTER/ ZOOM POSITION RESIZE ROTATION BRIGHTNESS PC1/PC2 VOLUME VIDEO OHP STORED IMAGE P in P LIVE IMAGE KEYSTONE Press the buttons to select “ON” or “OFF”.
- Page 50 Main Unit Operation SCROLL RESIZE MENU POINTER Remote Control Operation POWER MUTE MENU POINTER TYPE REFRESH FREEZE POINTER/ ZOOM POSITION RESIZE ROTATION BRIGHTNESS PC1/PC2 VOLUME VIDEO OHP STORED IMAGE P in P LIVE IMAGE KEYSTONE Press the buttons to adjust the setting. Sync adjustment Clock Phase...
-
Page 51: Quick Menu
■ 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 MENU Description of Menu Items ◆ When OHP Is Selected QUICK MENU Movie mode Full... -
Page 52: Maintenance
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. - Page 53 35°C (95°F)? Are any vent holes blocked? A probable cause is an internal circuit problem. Use your projector within an ambient temperature of 0°C to 35°C (32°F to 95°F). Place your projector away from walls and other objects.
-
Page 54: Lamp Unit Replacement
■ 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... - Page 55 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. Reset the lamp usage time.
-
Page 56: Cleaning The Air Filter
• Always vacuum from the outside of the air filter. If you vacuum from the inside of the air filter, this will reduce the effectiveness of the air filter. • Do not forget to install the air filter. If the projector is left without the air filter installed, dust may enter the projector and cause dirty projected images. -
Page 57: Troubleshooting
• Make sure that the remote control sensor of the main unit is not • Make sure that the projector is not installed near inverter-driven • Press the RESIZE button to do automatic synchronous adjustment. The image may not be positioned •... -
Page 58: Specifications
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. DT20 3 primary Color LCD Shutter Projection Type 1.0 inches x 3 Panels, Aspect Ratio 4:3...