NEC DT20 User Manual Download

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Multi-Function LCD Projector

DT20

User’s Manual

Summary of Contents for DT20

Page 1: ...English Deutsch Français Italiano Española Svenska Multi Function LCD Projector DT20 User s Manual ...

Page 2: ... OHP functions based on advanced technology built in to a super slim chassis It fits anyplace when you re using it and when you need to put it away Expressive color images The projector is equipped with a high resolution 2 million pixel single array color CCD camera This allows subtle midtones in color documents to be reproduced faithfully and sharp as projected images in full color 16 770 000 col...

Page 3: ...o 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 If foreign matter such as water or metal gets inside immediately disconnect the power cord It is dangerous to continue using the projector when foreign matter gets inside Return the projector to the dealer where it was purchased for servic i...

Page 4: ...ing in injury Do not touch the air vents or lamp cover The air vents lamp cover and peripheral surfaces may be hot during opera tion or just after the light is turned off Do not touch those for a long time Do not block the lens front Do not block the lens front during operation The powerful rays passing through the lens may cause fire or burns if you put anything in front of the lens or block the ...

Page 5: ... could result in rupture or leakage and could cause fire and injury Do not heat break open burn or immerse the batteries Battery rupture or leakage could cause fire and injury Servicing and cleaning 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 re...

Page 6: ...le 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 i...

Page 7: ...he 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 You could receive an electric shock What s in the Box Make sure your box contains everything listed If any pieces are missing contact your dealer Please save the original box and packing materials if you eve...

Page 8: ...ges on the Personal Computer Screen are not Projected E 24 Input Signal Compatibility Table PC video input terminal E 25 Connecting to a Video Source or DVD Player E 28 Basic Operation E 29 Preparation E 29 Basic Operations in the OHP Mode E 30 Basic Operation of PC or Video Input E 37 How to Quit E 41 Performing Various Adjustments E 42 Menu Structure E 42 Description of Menu Items E 43 Basic Ope...

Page 9: ...ed here See page E 12 Speakers Air Vent A air filter side of main unit Air is taken in through this vent An air filter is provided to prevent dust from getting inside the projector See page E 56 Anti theft Lock See the NOTE below Tilt Adjustment Buttons Press this to adjust the adjustable feet See page E 18 Adjustable Feet These feet are for adjusting the tilt angle as well as the left and right b...

Page 10: ...o the outside through this vent Sensor Adjustable Feet Adjustable Feet Lamp Unit Cover bottom of main unit The scanner lamp unit is housed inside this cover See page E 54 Speakers Power Cord connecter Connect the power cord into this terminal See page E 20 I O Terminal Panel Connection terminals for a PC or video source are located here See page E 11 ...

Page 11: ...ected When OHP is selected OHP images are output When PC VIDEO input is selected input PC video is output as it is During standby RGB IN1 images that are input from the personal computer are output directly 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...

Page 12: ...ge time exceeds 1400 hours it remains on after lamp usage time exceeds 1500 hours Lights when the air filter cover or the lamp unit cover is not in place This LED lights red in a standby state and lights green when the lamp is on Press this button to switch the input screen When PC is selected images from the PC input terminal are projected when VIDEO is selected images from the video source input...

Page 13: ... for about 30 seconds For details of menu adjustment see page E 43 onwards These buttons adjust the zoom ratio Pressing the ZOOM button reduces the image and pressing the ZOOM button enlarges the image Display the menu display Set and select the variable and adjustable values on the menu display Move the zoom position when using the zoom display Move the pointer when the pointer is displayed E 32 ...

Page 14: ...ontal display Press to confirm the projected image while moving the document when OHP is selected Press this button to apply a menu item in the menu display Display the pointer when the menu display is not displayed Press it again to hide the pointer 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 Adju...

Page 15: ...ter is displayed 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 menus 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 Press to freeze the projected image when PC or video is selected Pr...

Page 16: ...on 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 dis...

Page 17: ...damage it and cause it to cease functioning Keep the remote sensor away from water Wipe the remote controller immediately if it gets wet Avoid heat or hot water Remove the dry cells when you are not using the remote controller for a long period of time Do not mix new and old dry cells or use different types of dry cells at the same time Do not disassemble or heat batteries or throw them into a fir...

Page 18: ...lt the main unit at extreme angles by turning only one side of the adjustable feet Doing so may cause the main unit to slip or fall down resulting in accidents or failures 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 u...

Page 19: ... the area around the screen Do not install the projector where it will be subject to excessive humidity dust or cigarette smoke 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 Temperature build up inside the projector may ...

Page 20: ...tton 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 90 Adjustable feet ...

Page 21: ...on 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 ...

Page 22: ...T compatible machine Apple Macintosh Notebook desktop Notebook Desktop 15 pin Mini D Sub VGA Respective companies Power Book G3 with Mini D Sub 15 pin monitor output terminal Power Book excluding iBook DUO 100 140 145B 150 170 etc PowerBook DUO Models having no monitor output terminal such as iBook Power Book 100 140 145B 150 170 cannot be connected G3 G4 with Mini D Sub 15 pin monitor output term...

Page 23: ... 15 14 13 12 11 About RGB Video Output Signal timing The following shows the timing that signals are output from the RGB video output terminal XGA 60Hz speed or equivalent The video signal output is determined by whether PC OHP or OHP is selected in RGB OUT Selection on the Setting 2 menu See page E 45 for more information Vertical sync signal Horizontal sync signal r i e u w y q t Horizontal sync...

Page 24: ...al output signals are input to the DT20 from the PC No signal is displayed on the screen When this is displayed check the following 1 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 2 Check the functions on the personal com...

Page 25: ...MAC21 1152 864 1152 864 68 7 75 1280 960 60Hz 1280 960 60 0 60 1280 960 85Hz 1280 960 85 9 85 1280 1024 60Hz 1280 1024 64 0 60 1280 1024 75Hz 1280 1024 80 0 75 1280 1024 85Hz 1280 1024 91 1 85 1600 1200 60Hz 1600 1200 75 0 60 1600 1200 65Hz 1600 1200 81 3 65 1600 1200 70Hz 1600 1200 87 5 70 1600 1200 75Hz 1600 1200 93 8 75 1600 1200 85Hz 1600 1200 106 3 85 Input Signal Compatibility Table PC video...

Page 26: ...er 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 Terminal panel on the back of the DT20 main unit To speaker input terminals Fix the connector cable using the screw in fasteners To audio output terminal on PC ...

Page 27: ... 150 170 NOTE 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 Cable supplied with monitor Signal Cable supplied To RGB OUT terminal To RGB IN1 or RGB IN2 terminal DT20 Signal cable su...

Page 28: ...nd S VIDEO are connected S VIDEO is given higher display priority Before using the video source or DVD player close the materials cover Otherwise the glass on the scanner may vibrate and cause a rattling sound DVD Player Video Source To Video Output Terminal Or To Audio Output Terminal Terminal panel on the back of the DT20 main unit VIDEO V L R ...

Page 29: ...re is something wrong See page E 52 for details NOTE Make sure that the lens cap has been removed before turning on the power 2 Select the external input device Select the video source to be displayed from OHP PC1 PC2 or VIDEO NOTE When PC VIDEO is selected and the device is not connected or the connected device is not turned on No input is displayed Remote Control Operation Main Unit Operation OH...

Page 30: ...ocus Adjust the focus adjuster on the projection lens until the projected image is sharp 3 Compensate the keystone See Compensating Keystone on page E 21 4 Check the OHP s initial screen When you select OHP the Set your document and press the REFRESH button message appears and the projected image becomes all white and a window that shows how the document is moving appears on the bottom right of th...

Page 31: ...er lightens the projected image The Brightness value on the Image Adjustment menus changes in accordance with the brightness adjustment See page E 43 for more information 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 7 Switch the orientation of the projected ima...

Page 32: ...r the button on the remote controller reduces the image and pressing the ZOOM button or the button on the remote controller enlarges the image 11 Move the zooming position Press the arrow buttons on the remote controller to move the zooming position of the image You can move in eight directions Up down left right and diagonally Main Unit Operation Remote Control Operation LIVE IMAGE LIVE IMAGE Mai...

Page 33: ...hange even if you press the LIVE button 14 View OHP STORED IMAGE 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 button Display the image previous to the currently displayed image from store...

Page 34: ... 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 l...

Page 35: ...parts move the paper Displaying Live image in the window While it is possible to display Live images in the window the Live image is low resolution and is displayed against a background of a high definition frozen image on the main part of the projected image 297 mm 11 6 in paper size 288 mm 11 3 in scan size 210 mm 8 3 in paper size 216 mm 8 5 in scan size A4 horizontal orientation High definitio...

Page 36: ... 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 After that every time you refresh the display the images are stored in the internal memory When the stored images exceed the maximum of eight images the oldest images are overwritten in the order shown in the diagram below startin...

Page 37: ...tone on page E 21 4 Adjust the brightness Pressing the BRIGHTNESS button or the button on the remote controller darkens the projected image and pressing the BRIGHTNESS button or the button on the remote controller lightens the projected image The Brightness value on the Image Adjustment menus changes in accordance with the brightness adjustment See page E 47 for more information Main Unit Operatio...

Page 38: ...tton to do automatic synchronous adjustments of each setting to the most suitable status on the Sync Adjust menu Page E 44 8 Display the pointer Press the SET POINTER button to display the pointer Press it again to hide the pointer Press the SCROLL button to move the pointer NOTE Adjusting the zoom or the brightness while the pointer is displayed may cause it to disappear momentarily but it will r...

Page 39: ...ease the volume 11 Freeze the projected image 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 NOTE 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 Remote ...

Page 40: ...tton 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 Proje...

Page 41: ...he lamp on again press the POWER button again after the ON STANDBY LED lights red 2 Disconnect the power cord The ON STANDBY LED on the operation panel goes out CAUTION Do not disconnect the power cord before the lamp goes off or the LAMP COVER LED lights Doing so may shorten the life of the lamp Disconnect the power cord from the power outlet if you are not going to use the projector for a long p...

Page 42: ... Image adjustment Setting 1 Setting 2 Language selection Projection mode Return Video select PAL B G H I Auto PAL M NTSC 4 43 NTSC 3 58 SEC AM PAL N PAL 60 Return Projection mode Rear Front Standard Return Setting 1 Auto power off ON OFF Start up display ON OFF Economy mode ON OFF Lamp usage time Input signal 24H 1024 x 768 48 6KHz 60Hz Standard Return Setting 2 Pointer type RGB OUT select PC OHP ...

Page 43: ...if you want to reproduce colors that are close to the original select Natural Standard Return Image adjustment Brightness 0 Red 0 Blue 0 Sharpness 1 2 3 5 4 Image mode Standard Natural Contrast 0 Standard Return Image adjustment Brightness 0 Color 0 Sharpness 3 Hue 0 Image mode Standard Natural Contrast 0 Menu Item Contrast Brightness Red Blue Sharpness Image mode Sharpness is especially effective...

Page 44: ...pness select Standard if you want to reproduce colors that are close to the original select Natural The TEXT setting compensates for text documents and the PHOTO setting compensates for photo documents Select the setting to suit the document you are projecting Menu Item Clock Phase Horizontal Vertical Setting Item 100 100 100 100 100 100 100 100 Description Adjusts the horizontal size of the image...

Page 45: ...ode ON OFF Lamp usage time Input signal 24H 1024 x 768 48 6KHz 60Hz Standard Return Setting 2 Pointer type RGB OUT select PC OHP OHP Mute mode Black Logo Menu Item Pointer type RGB OUT select Mute mode Description Selects a type of pointer from among the three types When PC OHP is selected If the input selection is OHP then the image is output as an OHP image for which the timing is changed to XGA...

Page 46: ...s the projection mode according to the installation method front standard projection or rear projection 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 Return Language selection English Deutsch Français Italiano Española Svenska Return Projection mode Rear Front Return Video select PAL B G H I Auto PAL M NT...

Page 47: ...the buttons to select the item you want to set Example When Sync adjustment is selected Main Unit Operation Remote Control Operation Quit MENU Sync adjustment Image adjustment Setting 1 Setting 2 Language selection Projection mode Quit MENU Sync adjustment Image adjustment Setting 1 Setting 2 Language selection Projection mode MENU ZOOM RESIZE OHP BRIGHTNESS PC1 PC2 VOLUME VIDEO OHP STORED IMAGE R...

Page 48: ... to the initial settings when you bought the projector select Standard and press the SET POINTER button or POINTER SET button in the Image adjustment Sync adjustment Setting or Video adjustment menus Example Sync Adjustment Menu MENU ZOOM RESIZE OHP BRIGHTNESS PC1 PC2 VOLUME VIDEO OHP STORED IMAGE ROTATION POSITION V H P in P LIVE IMAGE KEYSTONE FREEZE POINTER SET POWER POINTER TYPE REFRESH MUTE 4...

Page 49: ...dard Return Setting 1 Auto power off ON OFF Start up display ON OFF Economy mode ON OFF Lamp usage time Input signal 24H 1024 x 768 48 6KHz 60Hz 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 4 1 Press the buttons to select the i...

Page 50: ...f menu items see page E 46 4 1 Press the buttons to select the item you want to set Example When English is selected from the Language Selection menu 4 2 Standard Return Sync adjustment Phase 0 Horizontal 0 Vertical 0 Clock 0 Return Language selection English Deutsch Français Italiano Española Svenska 5 Press the buttons to select Quit and then press the SET POINTER button or POINTER SET button on...

Page 51: ...urrently 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 Menu Item Movie mode Scanner lamp Stored images clear all Setting Item Full Window ON OFF Description When Full is selected The entire projected image shows the video image The document scanning speed is 1 frame per ...

Page 52: ...e 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...

Page 53: ...ng and take corrective actions Use your projector within an ambient temperature of 0 C to 35 C 32 F to 95 F Is the ambient temperature more than 35 C 95 F Are any vent holes blocked A probable cause is an internal circuit problem Call qualified service personnel Place your projector away from walls and other objects See Do not block the air vents on page E 4 ...

Page 54: ...d 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 WARNING 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 outl...

Page 55: ...cumulative usage time of the lamp is more than 1500 hours 6 Verify that the display of lamp usage time in the Lamp Setting menu is 0H as shown to the left If the lamp usage time is not reset reset it by repeating step 5 CAUTION Be sure to reset the lamp usage time after replacing the lamp Otherwise the correct usage time cannot be known When the display exceeds 1500 hours the power to the lamp is ...

Page 56: ...s shown in the illustration 3 Mount the air filter Follow step 1 in reverse order Press it in until you hear a click sound CAUTION Caring for the Air Filter and Cautions Do not wash the air filter with water or other liquids This may cause the filter to clog Do not wipe the air filter with a cloth or a wet rag as this too may cause the filter to clog Always vacuum from the outside of the air filte...

Page 57: ...e 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 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 ...

Page 58: ...alog 0 7Vp p 75Ω Separate composite TTL Level positive negative Sync on green 0 3 Vp p Negative 15 pin Mini D sub 2 ch NTSC PAL SECAM PAL N PAL M PAL60 NTSC4 43 RCA Pin Jack 1 ch S Video Mini DIN4 pin 1ch 0 7Vp p 75Ω Separate TTL Level Negative Polarity 15 pin Mini D sub 1 ch 0 4Vrms 47KΩ Stereo Mini Jack 2 ch 0 4Vrms 47KΩ RCA Pin Jack 1 ch 0 4Vrms 47KΩ Stereo Mini Jack 1 ch 1 W 2 stereo Temperatu...

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