NEC LT25 User Manual
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NEC LT25 User Manual

NEC LT25 User Manual

Nec user's manual portable projector lt35, lt30, lt25
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Portable Projector
LT35/LT30/LT25
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  • Page 1 Portable Projector LT35/LT30/LT25 User’s Manual...
  • Page 2 © NEC Viewtechnology, Ltd. 2005 First edition September 2005 • Digital Light Processing and DLP are trademarks of Texas Instruments. • IBM is a trademark or registered trademark of International Business Machines Corporation. • Macintosh, Mac OS X and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.

  • Page 3: Safety Cautions

    Important Information Safety Cautions Precautions Please read this manual carefully before using your NEC LT35/LT30/LT25 projector and keep the manual handy for future reference. Your serial number is located on the bottom of your projector. Record it here: CAUTION To turn off main power, be sure to remove the plug from power outlet.
  • Page 4 RF Interference (for USA only) WARNING The Federal Communications Commission does not allow any modifications or changes to the unit EXCEPT those specified by NEC Solutions (America), Inc. in this manual. Failure to comply with this government regulation could void your right to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 5 Fire and Shock Precautions • Ensure that there is sufficient ventilation and that vents are unobstructed to prevent the build-up of heat inside your projector. Allow at least 4 inches (10cm) of space between your projector and a wall. • Do not try to touch the ventilation outlet on the right front (when seen from the front) as it can become heated while the projector is turned on and immediately after the projector is turned off.
  • Page 6 Remote Control Precautions • Handle the remote control carefully. • If the remote control gets wet, wipe it dry immediately. • Avoid excessive heat and humidity. • Do not heat, take apart, or throw batteries into fire. • If you will not be using the remote control for a long time, remove the batteries. •...

  • Page 7: Table Of Contents

    Table of Contents Important Information ... 1. Introduction... What's in the Box? ... 1 Introduction to the Projector ... 2 Part Names of the Projector ... 4 Top Features ... 6 Terminal Panel Features ... 6 Part Names of the Remote Control ... 7 Battery Installation ...
  • Page 8 4. Convenient Features ... Turning Off the Image and Sound ... 28 Freezing a Picture... 28 Changing Lamp Mode ... 28 Preventing the Unauthorized Use of the Projector ... 28 Using the Optional Remote Mouse Receiver ... 31 5. Using On-Screen Menu ... Using the Menus ...

  • Page 9: Important Information

    1. Introduction 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 ever need to ship your projector. Projector Lens cap (24F41351) Power cable (US: 7N080204)

  • Page 10: Introduction To The Projector

    Introduction to the Projector This section introduces you to your new projector and describes the features and controls. Congratulations on Your Purchase of the Projector This projector is one of the very best projectors available today. The projector enables you to project precise images up to 300 inches across (measured diagonally) from your PC or Macintosh computer (desktop or notebook), VCR, DVD player, document camera, or a laser disc player.
  • Page 11 1. Introduction About this user's manual The fastest way to get started is to take your time and do everything right the first time. Take a few minutes now to review the user's manual. This may save you time later on. At the beginning of each section of the manual you'll find an overview.

  • Page 12: Part Names Of The Projector

    Part Names of the Projector Front/Top Zoom Lever page 22) Remote sensor page 8) Lens Focus sensor page 22, 46) Lens Cap This security slot supports the MicroSaver ® Security System. MicroSaver ® is a registered trademark of Kensington Microware Inc. The logo is trademarked and owned by Kensington Microware Inc. Rear Terminal Panel page 6)
  • Page 13 Bottom Lamp Cover page 47) Rear foot page 21) Rear foot page 21) 1. Introduction...

  • Page 14: Top Features

    Top Features 1. POWER Button (ON / STAND BY) ( ) ( 2. POWER Indicator ( page 16, 17, 27, 50) 3. STATUS Indicator ( page 50) 4. LAMP Indicator ( page 47, 50) 5. SOURCE Button ( page 19) 6.

  • Page 15: Part Names Of The Remote Control

    Part Names of the Remote Control 1. Infrared Transmitter (→ page 8) 2. POWER ON Button (→ page 17) 3. POWER OFF Button (→ page 27) 4. FOCUS (+) (–) Button (→ page 24) 5. PIC-MUTE Button (→ page 28) 6.

  • Page 16: Battery Installation

    Battery Installation Press firmly and slide the battery cover off. Remote Control Precautions • Handle the remote control carefully. • If the remote control gets wet, wipe it dry immediately. • Avoid excessive heat and humidity. • Do not heat, take apart, or throw batteries into fire. •...

  • Page 17: Installation And Connections

    2. Installation and Connections This section describes how to set up your projector and how to connect video and audio sources. Setting Up the Screen and the Projector Selecting a Location The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is approximately 30"...

  • Page 18: Throw Distance And Screen Size

    Throw Distance and Screen Size The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation. Distance Chart Projector bottom B = Vertical distance between lens center and screen center C = Throw distance = Throw angle NOTE: Distances may vary +/-5%.
  • Page 19 WARNING * Installing your projector on the ceiling must be done by a qualified technician. Contact your NEC dealer for more information. * Do not attempt to install the projector yourself. • Only use your projector on a solid, level surface. If the projector falls to the ground, you can be injured and the projector severely damaged.

  • Page 20: Making Connections

    Making Connections Connecting Your PC or Macintosh Computer NOTE: When using with a notebook PC, be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power to the notebook PC. In most cases the output signal from the notebook PC is not turned on unless connected to the projector before being powered up.

  • Page 21: To Connect Scart Output (Rgb)

    2. Installation and Connections To connect SCART output (RGB) Projector COMPUTER IN Video equipment such as DVD player COMPUTER IN VIDEO IN S-VIDEO IN AUDIO IN PC CONTROL Female ADP-SC1 Commercially available SCART cable Before connections: An exclusive SCART adapter (ADP-SC1) and a commercially available SCART cable are re- quired for this connection.

  • Page 22: Connecting Your Dvd Player With Component Output

    Connecting Your DVD Player with Component Output Optional 15-pin - to - RCA (female) 3 cable (ADP-CV1) Component A component signal will be automatically displayed. If not, from the menu, select [Setup - Options] [Computer], and then place a check mark in the “RGB/Component” radio button. NOTE: Refer to your DVD player's owner's manual for more information about your DVD player's video output requirements.

  • Page 23: Connecting Your Vcr Or Laser Disc Player

    Connecting Your VCR or Laser Disc Player S-Video cable (not supplied) Video cable (not supplied) VCR/ Laser disc player NOTE: Refer to your VCR or laser disc player owner's manual for more information about your equipment's video output require- ments. NOTE: •...

  • Page 24: Connecting The Supplied Power Cable

    Connecting the Supplied Power Cable Connect the supplied power cable to the projector. First connect the supplied power cable's three-pin plug to the AC IN of the projector, and then connect the other plug of the supplied power cable in the wall outlet. The projector will go into its standby mode and the power indicator will glow...

  • Page 25: Projecting An Image (Basic Operation)

    3. Projecting an Image (Basic Operation) This section describes how to turn on the projector and to project a picture onto the screen. Turning on the Projector NOTE: Before turning on the projector, first connect the supplied power cable's three-pin plug to the AC IN of the projector, and then connect the other plug of the supplied power cable in the wall outlet.

  • Page 26: Note On Startup Screen (Menu Language Select Screen)

    Note on Startup screen (Menu Language Select screen) When you first turn on the projector, you will get the Startup menu. This menu gives you the opportunity to select one of the nine menu languages. To select a menu language, follow these steps: 1.

  • Page 27: Selecting A Source

    Selecting a Source Selecting the computer or video source NOTE: Turn on the computer or VCR connected to the projector. Selecting a source from the Source list Press and quickly release the SOURCE button on the projector cabinet to display the Source list. Each time the SOURCE button is pressed, each source name will be highlighted in sequence.

  • Page 28: Adjusting The Picture Size And Position

    Adjusting the Picture Size and Position Place your projector on a flat level surface and ensure that the projector is square to the screen. Lift the front edge of the projector to center the image vertically. If the projected image does not appear square to the screen then use the Keystone feature for proper adjust- ment.
  • Page 29 Adjust the Tilt Foot 1. Lift the front edge of the projector. CAUTION: Do not try to touch the ventilation outlet during Tilt Foot adjustment as it can become heated while the projector is turned on and during its cool down period after it is turned off. 2.
  • Page 30 Zoom Use the ZOOM lever to adjust the image size on the screen. NOTE: Rotating the ZOOM lever will cause the focus to be ad- justed automatically. Auto Focus The focus sensor on the projector detects the distance to the screen and automatically adjusts the focus of an image. •...
  • Page 31 3. Projecting an Image (Basic Operation) Auto Keystone Correction The Auto Keystone correction feature will correct the vertical distortion of a projected image on the screen. No special operation required. Just place the projector on a flat surface. NOTE: When using the Auto Keystone function, heed the following: •...

  • Page 32: Adjusting Focus Manually

    Adjusting Focus Manually Adjust the focus manually in the following cases: • When adjusting the focus out of the effective range of the automatic focus • When finely adjusting the focus • When the menu setting for [Auto Focus] is turned off Adjusting with buttons on the cabinet 1.

  • Page 33: Correcting Keystone Distortion Manually

    Correcting Keystone Distortion Manually You can also correct the vertical keystone distortion manually. NOTE: Manual keystone correction is not available when there is no signal received by any input. Adjust the keystone distortion manually in the following cases: • To fine tune Keystone correction even after performing the [Auto Keystone] adjustment. •...

  • Page 34: Optimizing Rgb Picture Automatically

    4. Correct the vertical distortion. Use the SELECT button to correct the verti- cal keystone distortion. NOTE: The Keystone Correction feature can cause an image to be slightly blurred because the correction is made elec- tronically. 5. Press the EXIT button twice to close the menu. TIP: You can save the changes using the Keystone Save fea- ture when you turn off the projector.

  • Page 35: Turning Off The Projector

    Turning off the Projector To turn off the projector: First, press the POWER (ON/STAND BY) button on the projector cabinet or the POWER OFF button on the re- mote control. The “Power Off / Are you sure?” message will appear. Secondly, press the ENTER button or press the POWER (ON/STAND BY) or the POWER OFF button again.

  • Page 36: Convenient Features

    Repeat Step 3. Normal Mode ... This is the default setting (100% Brightness). Eco Mode ... Select this mode to increase the lamp life and reduce fan noise (LT35: 77% Brightness, LT30/LT25: 85% Bright- ness). Preventing the Unauthorized Use of the Projector A keyword can be set for your projector using the Menu to avoid operation by an unauthorized user.
  • Page 37 3. Select [On] and press the ENTER button. The [Keyword] screen will be displayed. 4. Type in a combination of the four SELECT NOTE: A keyword must be four to 10 digits in length. The [Confirm Keyword] screen will be displayed. 5.
  • Page 38 To disable the Security function: 1. Press the MENU button. The menu will be displayed. 2. Select [Setup - Installation] The Off/On menu will be displayed. 3. Select [Off] and press the ENTER button. The Keyword confirmation screen will be displayed. 4.

  • Page 39: Using The Optional Remote Mouse Receiver

    Using the Optional Remote Mouse Receiver The optional remote mouse receiver enables you to operate your computer’s mouse functions from the remote control. It is a great convenience for clicking through your computer-generated presentations. Connecting the remote mouse receiver to your computer If you wish to use the remote mouse function, connect the mouse receiver and computer.

  • Page 40: Using On-Screen Menu

    5. Using On-Screen Menu Using the Menus NOTE: The on-screen menu may not be displayed correctly while an interlaced motion video image is projected. 1. Press the MENU button on the remote control or projector cabinet to display the main menu. 2.
  • Page 41 5. Adjusting the level of a selected item or selecting an item. For Adjusting items (Slide bar) Slide bar ... Indicates settings or the direction of adjustment. • Use the SELECT buttons to adjust the item. For Selecting items (Solid triangle) Solid triangle ...

  • Page 42: Menu Elements

    Menu Elements Highlight Source Menu windows or dialog boxes typically have the following elements: Title ... Indicates the menu title. Highlight ... Indicates the selected menu or item. Source ... Indicates the currently selected source. Off timer remaining time ... Indicates the remaining countdown time when the Off Timer is preset. Solid triangle ...

  • Page 43: List Of Menu Items

    List of Menu Items Picture Preset Detail Settings Reference Gamma Correction Color Temperature White Peaking Brightness Contrast Sharpness Color Reset Image Options Aspect Ratio Cinema Position Position/Clock Horizontal Vertical Clock Phase Noise Reduction Telecine Setup General Auto Keystone Keystone Keystone Save Wall Color Lamp Mode Language...
  • Page 44 Information Usage Time Lamp Life Remaining Lamp Hours Used Projector Hours Used Source Horizontal Frequency Vertical Frequency Video Type Sync Type Sync Polarity Scan Type Version Firmware Data Reset Current Signal All Data Clear Lamp Hours Item NTSC, NTSC3.58, NTSC4.43, PAL, PAL-M, PAL-N, PAL60, SECAM Separate Sync, Composite Sync, G-Sync Interlace, Non-Interlace Item...

  • Page 45: Menu Descriptions & Functions [Picture]

    Menu Descriptions & Functions [Picture] Preset When selecting user adjustable presetting (Preset), the submenu will be displayed. You can customize each gamma or color. To do so, first select [Preset] and press the ENTER button, and then proceed with the following steps. Detail Settings Selecting Reference Setting [Reference] This option allows you to select one of 5 user adjustable presettings.

  • Page 46: Menu Descriptions & Functions [Image Options]

    Adjusting Brightness, Contrast, Sharpness, Color and Hue You can adjust brightness, contrast, sharpness, color and hue. TIP: When one of Brightness, Contrast, Sharpness, Color or Hue is highlighted, pressing the ENTER button will display its slide bar for adjustment. Brightness ... Adjusts the brightness level or the black level of the image. Contrast ...
  • Page 47 NOTE: • When you are displaying an RGB image with a higher resolution than the projector's native resolution, the image will be displayed in [Normal] even if [Native] is selected. Only when displaying an RGB image with a lower resolution than the projector's native resolution, will the image be able to be displayed in its true resolution [Native].

  • Page 48: Menu Descriptions & Functions [Setup]

    Eco mode. Normal Mode ... This is the default setting (100% Brightness). Eco Mode ... Select this mode to increase the lamp life and reduce fan noise (LT35: 77% Brightness, LT30/LT25: 85% Brightness). Selecting Menu Language [Language] You can choose one of 20 languages for the on-screen menu.

  • Page 49: [Setup - Installation]

    5. Using On-Screen Menu [Setup - Installation] Selecting Projector Orientation [Orientation] This sets your image for your type of projection application. The options are: desktop front projection, ceiling rear projection, desktop rear projection, and ceiling front projection. Desktop front Ceiling rear Desktop rear Ceiling front Selecting Communication Speed [Communication Speed]...
  • Page 50 5. Using On-Screen Menu Enabling Security [Security] This feature turns on or off the Security function. Unless the correct keyword is entered, the projector cannot project an image. ( page 28) Selecting Menu Color [Menu Color Select] You can choose between two color modes for menu color: color and monochrome. Selecting Menu Display Time [Menu Display Time] This option allows you to select how long the projector waits after the last touch of a button to turn off the menu.

  • Page 51: [Setup - Options]

    [Setup - Options] Setting Off Timer [Off Timer] You can use the Off Timer feature to turn off the projector automatically at a preset time. Eight preset times can be selected:Off, 0:30, 1:00, 2:00, 4:00, 8:00, 12:00 and 16:00. Enabling or Disabling Auto Focus [Auto Focus] This option turns on or off the Auto Focus feature.

  • Page 52: Menu Descriptions & Functions [Information]

    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. Model Normal LT35 LT30/LT25 [Source] [Horizontal Frequency] [Vertical Frequency] [Video Type] [Sync Type]...

  • Page 53: Menu Descriptions & Functions [Reset]

    Menu Descriptions & Functions [Reset] Returning to Factory Default [Reset] 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. The items that can be reset are: [Preset], [Brightness], [Contrast], [Color], [Hue], [Sharpness], [Aspect Ratio], [Horizontal Position], [Vertical Position], [Clock], [Phase], [Noise Reduction], [Telecine] and [Volume].

  • Page 54: Maintenance

    6. Maintenance This section describes the simple maintenance procedures you should follow to clean the focus sensor, lens and replace the lamp. Cleaning the Lens and Focus Sensor Cleaning the lens Use a blower or lens paper to clean the lens, and be careful not to scratch or mar the lens. Cleaning the focus sensor Use a blower or lens paper to clean the focus sensor.

  • Page 55: Replacing The Lamp

    To replace the lamp: Optional lamp and tools needed for replacement: • Replacement lamp LT35LP (LT35) or LT30LP (LT30/LT25) • Phillips screwdriver or equivalent 1. Place the projector on a soft cloth and turn it over to access the lamp cover on the bottom.
  • Page 56 4. Push the part labeled “PUSH” and 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 LT35LP (LT35) or LT30LP (LT30/LT25). Order this from your NEC dealer. Secure it in place with the two screws.
  • Page 57 6. Maintenance 7. Connect the supplied power cable and turn on the projector. 8. Finally, select the menu [Reset] [Clear Lamp Hours] to reset the lamp usage hours. NOTE: When the lamp exceeds 2100 hours (up to 2600 hours in Eco mode) of service, the projector cannot turn on and the menu is not displayed.

  • Page 58: Appendix

    7. Appendix Troubleshooting This section helps you resolve problems you may encounter while setting up or using the projector. Indicator Messages Power Indicator Indicator Condition Blinking light Green Orange Steady light Green Orange Status Indicator Indicator Condition Blinking light Green Steady light Orange Lamp Indicator...
  • Page 59 Common Problems & Solutions ( Problem Check These Items Does not turn on • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote control is on. ( • Ensure that the lamp cover is installed correctly. ( •...
  • Page 60 If there is no picture, or the picture is not displayed correctly. • Power on process for the projector and the PC. Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power to the notebook PC.

  • Page 61: Specifications

    LT35: 3.1 - 1.4A LT30/LT25: 2.8 - 1.3A LT35: 280W in Lamp Normal mode, 230W in Lamp Eco mode, 8.0W in Standby mode LT30/LT25: 260W in Lamp Normal mode, 230W in Lamp Eco mode, 8.0W in Standby mode 7. Appendix...
  • Page 62 Mechanical Installation Orientation Dimensions Net Weight Environmental Considerations Operational Temperatures: 41 F to 104 F / 5 C to 40 C Regulations For additional information visit: US : http://www.necvisualsystems.com Europe : http://www.neceurope.com/ Global : http://www.nec-pj.com/ The specifications are subject to change without notice. Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear 10.2"...

  • Page 63: Cabinet Dimensions

    7. Appendix Cabinet Dimensions CONTROL AUDIO S-VIDEO VIDEO COMPUTER FOCUS ADJ. AUTO SOURCE ON/STAND POWER STATUS LAMP SELECT 260 (10.2") 85 (3.3") Lens center PUSH Unit: mm (inch)

  • Page 64: Pin Assignments Of D-Sub Computer Input Connector

    Pin Assignments of D-Sub COMPUTER Input Connector Mini D-Sub 15 Pin Connector Signal Level Video signal : 0.7Vp-p (Analog) Sync signal : TTL level Pin No. RGB Signal (Analog) Green or Sync on Green Blue Ground Ground Red Ground Green Ground Blue Ground No Connection Sync Signal Ground...

  • Page 65: Compatible Input Signal List

    Compatible Input Signal List Horizontal: 15 kHz to 100 kHz (RGB: 24 kHz or over) Vertical: 50 Hz to 85 Hz Signal Resolution ( Dots ) NTSC PAL60 SECAM VESA VESA VESA VESA VESA VESA VESA VESA VESA VESA 1024 VESA 1024 1024...

  • Page 66: Pc Control Codes And Cable Connection

    PC Control Codes and Cable Connection PC Control Codes Function Code Data POWER ON POWER OFF INPUT SELECT COMPUTER INPUT SELECT VIDEO INPUT SELECT S-VIDEO PICTURE MUTE ON PICTURE MUTE OFF SOUND MUTE ON SOUND MUTE OFF NOTE: Contact your local dealer for a full list of the PC Contorol Codes if needed. Cable Connection Communication Protocol Baud rate ...

  • Page 67: Troubleshooting Check List

    Troubleshooting Check List Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your problem more efficiently.
  • Page 68 In the space below please describe your problem in detail. Information on application and environment where your projector is used Projector Model number: Serial No.: Date of purchase: Lamp operating time (hours): Lamp Mode: Information on input signal: Horizontal synch frequency [ Vertical synch frequency Synch polarity Synch type...

  • Page 69: Travelcare Guide

    TravelCare Guide TravelCare - a service for international travelers This product is eligible for "TravelCare", NEC's unique international war- ranty. Please note that TravelCare coverage differs in part from coverage un- der the warranty included with the product. Services offered with TravelCare This warranty allows customers to receive service on their product at the NEC and NEC-designated service stations in the countries listed herein when temporarily traveling internationally for business or plea-...
  • Page 70 In Asia and Middle East NEC Viewtechnology, Ltd. Address: 686-1, Nishioi, Oi-Machi, Ashigarakami-Gun, Kanagawa 258-0017, Japan Telephone: +81 465 85 2369 Fax Line: +81 465 85 2393 Email Address: support_pjweb@nevt.nec.co.jp WEB Address: http://www.nec-pj.com (Regions Covered) Japan* NEC Hong Kong Ltd. Address: 11th Floor, Tower B, New Mandarin Plaza, 14 Science Museum Road,...
  • Page 71 Date: TO: NEC or NEC's Authorized Service Station: (Company & Name with signature) Dear Sir (s), I would like to apply your TravelCare Service Program based on attached registration and qualification sheet and agree with your following conditions, and also the Service fee will be charged to my credit card account, if I don't return the Loan units within the specified period.
  • Page 72 Condition of your TravelCare Service Program Enduser is requested to understand following condition of TravelCare Service Program and complete the necessary information on the appli- cation sheet. 1. Service Options: There are 3 types of "Service" available. Enduser has to understand following condition and is required to fill in the Application Sheet.

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