Instruction/ maintenance manual of the product LT84/LT140 NEC
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Ultra-P or tab le Projector MultiSync L T84/L T140 User’ s Manual.
E–2 IMPOR T ANT INFORMA TION Precautions Please read this manual carefully before using your NEC MultiSync L T84/L T140 Projector and keep the man ual handy for future reference. Y our serial number is located under the name plate label on the left side of y our MultiSync L T84/L T140.
E–3 Cleaning 1. Unplug the projector bef ore cleaning. 2. Clean the cabinet periodically with a damp cloth. If hea vily soiled, use a mild detergent. Never use strong detergents or solvents such as alcohol or thinner . 3. Use a blo wer or lens paper to clean the lens, and be careful not to scratch or mar the lens .
E–4 Fire and Shock Precautions 1. Ensure that there is sufficient v entilation and that v ents are unobstructed to prev ent the build-up of heat inside your pro- jector . Allow at least 3 inches (10cm) of space between y our projector and a wall. 2.
E–5 T ABLE OF CONTENTS 1. INTRODUCTION Introduction to the MultiSync L T84/L T140 Projector .... E-6 Getting Star ted ............................................................ E-6 Getting to Know Y our MultiSync L T84/L T140 Projector .... E-7 F ront Features .
E–6 1. INTRODUCTION Introduction to the MultiSync L T84/L T140 Projector This section introduces you to your ne w MultiSync L T84 (SVGA)/ L T140 (XGA) Projector describes the features and controls.
E–7.
E–8 T op Features 1 Sour ce Button Use this button to select a video source such as a PC, VCR, DVD player or PC Card V ie wer (CompactFlash card installed). 2 A uto Adjust Button Use this button to adjust Position-H/V and Pixel Clock/Phase for an optimal picture.
E–9 Slot for Kensington MicroSaver Security System T erminal Panel Features PC CONTROL USB RGB INPUT S-VIDEO VIDEO AUDIO L ( MONO ) R PC CARD ACCESS MOUSE OUT 14 56 7 8 9 1 0 C A N C E L ER ON / OFF 11 This panel is located on the left side and is where you connect your cables.
E–10 Wireless Card Remote Control 1 Sour ce Button Press to select a video source. 2 A uto Adjust Button Use this button to adjust Position-H/V and Pixel Clock/Phase for an optimal picture. Some signals may not be displayed correctly , or in some cases it may take some time for a source to be switched to another .
E–11 function remote control only . 6 Enter Button Executes your menu selection and acti va tes items selected fr om the menu. 7 Magnify Button Use the (+) or (–) button to adjust the image size up to 400%. When the Pointer is displayed, the magnified image is displayed at the center of the Pointer .
E–12 2. INST ALLA TION This section describes how to set up your MultiSync L T84/L T140 projector and how to connect video and audio sources. Setting up Y our Projector Y our MultiSync L T84/L T140 Projector is simple to set up and use. But before you get started, you must first: 1.
E–13 B D E C A α D H V Unit (inch) A=C/cos α B=3.7H / 25.4 C(XGA:tele)=(2.41 x H)-2.0 or C(XGA:wide) x 1.2 C(XGA:wide)=(2.0 x H)-2.0 C(SV GA:tele)=(2.43 x H)-1.75 or C(SVGA:wide) x 1.2 C(SV GA:wide)=(2.0 x H)-1.9 D=E/2 E=H/4 x 3 a=H/4 x 5 Unit (mm), H= inch A=C/cos α B=3.
E–14 W ARNING • Installing your projector on the ceiling must be done by a quali- fied technician. Contact your NEC dealer for more infor ma- tion. * Do not attempt to install the projector y ourself. • Only use your projector on a solid, lev el surface.
E–15 Wiring Diagram PC CONTROL USB RGB INPUT S-VIDEO VIDEO AUDIO L ( MONO ) R PC CARD ACCESS MOUSE OUT.
E–16 When using a Macintosh with the projector , set the DIP switches of the supplied pin adapter according to your resolution. After setting, restart your Macintosh. See the following pages for setting of the DIP switches. • When using with a Macintosh, SVGA(800 2 600)/ XGA(1024 2 768) is recommended if your Macintosh supports this mode.
E–17 3.OPERA TION This section describes how to select a computer or video source , ho w to adjust the picture, and ho w to customiz e the menu or projector settings. General Controls Before you turn on your projector , ensure that the computer or video source is turned on and that your lens cap is removed.
E–18 Mein Menu Source Select Adjustments Image Options Projector Options Tools Help Source Select RGB Video S-Video PC Card Viewer Adjustments Picture Volume Image Color Temperature Keystone Factory.
E–19 Menu Elements: Setup Orientation Page1 Page2 Page3 Front Floor Background Blue Signal Select S-VIDEO Auto VIDEO Auto RGB Auto OK Cancel Setup Page1 Mouse Button Right Hand Left Hand Auto Start .
E–20 Menu Descriptions & Functions Source Select Enables you to select a video source such as a VCR, D VD player , laser disc player , computer or document camera depend- ing on what is connected to your inputs.
E–21 Auto Adjust: When “ Auto Adjust” is set to “On”, the projector automatically determines the best resolution for the current RGB input signal to project an image using NEC’ s Advanced AccuBlend Intelli- gent Pixel Blending T echnology .
E–22 V ideo Mode Gamma: Video Mode Gamma Noise Reduction Color Matrix Projector Options Menu Setup Menu Language English Projector Pointer Pointer 1 Source Display Off On Y ou can select one of the following three le vels for reducing video noise to your preference.
E–23 Setup Orientation Page1 Page2 Page3 Front Floor Background Blue Signal Select S-VIDEO Auto VIDEO Auto RGB Auto OK Cancel Setup Enables you to set operating options. Press “OK” to sav e your changes for all the features of Page1, P age2 and Page3.
E–24 Tools Capture PC Card Files ChalkBoard [Page 3] Setup Page1 PC Card Viewer Options Start Mode Show Folder List Manual Play Auto Play Auto Play Interval sec 15 Page2 Page3 OK Cancel Capture Opti.
E–25 PC Card Files File Name Size Date @. @.. 12345678.txt 12345678.bmp 12345678.htm <DIR> <DIR> 1234567890 1234567890 1234567890 1999/06/01 HH:MM 1999/06/01 HH:MM 1999/06/17 HH:MM 1999/06/17 HH:MM 1999/06/17 HH:MM Execute Exit Sort Name (abc.
E–26 Using the PC Card Viewer function NO TE: When using the supplied software (CD-R OM) The softwar e is designed to use with a personal computer only .
E–27 Installing the PC Card Viewer Software Bef ore Installing Perform the following before installing the PC Card V ie wer software: • If W indo ws95 is already started, exit all applications. Installa- tion may not be performed properly if any applications are run- ning.
E–28 Drag Prev Ne xt Play/Stop Jump Select Delete View A tool bar will appear when you press the MENU b utton on the re- mote control or the projector cabinet or clicking with the right button of a mouse.
E–29 A uto Play Mode • If the “ Auto Play” option is selected in “PC Card V ie w er Op- tions” of the menu, any gi ven slide will start to play automati- cally .
E–30 Capturing Images Displayed on the Projector Storing images displayed on the pr ojector on the CompactFlash card Pr epar a tions: Insert the CompactFlash card into the card slot. Insert the CompactFlash card with the side with the insertion direction arrow on the top.
E–31 Deleting Captured Images Uninstalling the PC Card Viewer Software Ev en if you do now know the PC Card V ie w er softw are's file names or where the y are stored, the PC Card V iewer softw are files can be easily remov ed from the system using the "Install/Uninstall Applica- tions" control panel in Windo ws 95.
E–32 This is the name of a card currently being standardized by the Japan Electronic Industry Association (JEID A) and PCMCIA (Personal Computer Memory Card Interface Associa tion) of the United States. A type of PC card. A T A was originally a type of interface between computers and fix ed disk de vices.
E–33 4. MAINTENANCE.
E–34 M n O 2 - L i C E L L 3 V O L T S J A P A N H CR2025 M n O 2 - L i C E L L 3 V O L T S J A P A N H H.
E–35 5. TROUBLESHOOTING This section helps you resolve problems you may encounter while setting up or using the projector . OFF On continually Blinking very rapidly (On and off in a c ycle of 1 sec.) Blinking rapidly (On and off in a cycle of 4 sec) Blinking slowly (On and of f in a cycle of 8 sec.
E–36 • Is “PC Card V ie wer” selected from the Source menu? • Is the CompactFlash memory card seated in the PC CARD ACCESS slot completel y? • Are slide data stored in the CompactFlash mem.
E–37 6. SPECIFICA TIONS This section provides technical information about the MultiSync L T84/L T140 Projector’s perf ormance. Model Number L T84 / L T84G / L T140 / L T140G Optical DMD TM Single Chip Digital Micromirror De vice(DMD TM ), 800x600 dots (L T84) / 1024x768 dots (L T140) Lens Manual zoom, man ual focus L T84 : F3.
E–38 Cabinet Dimensions L T84.
E–39 Cabinet Dimensions L T140.
E–40 51 42 3 10 11 12 13 14 15 6 97 8 D-Sub Pin Assignments Mini D-Sub 15 Pin Connector Pin No. RGB Signal (Analog) YCbCr Signal 1 Red Cr 2 Green or Sync on Green Y 3 Blue Cb 4 Ground 5 Ground 6 Red.
E–41 Timing Chart Y NTSC 640 2 480 60 15.734 - Y P AL 768 2 576 50 15.625 - Y SECAM 768 2 576 50 15.625 - Y VESA 640 2 350 85.08 37.86 31.5 Y MA C 640 2 400 66 35 30.24 Y IBM 640 2 400 70 31.47 25.175 Y VESA 640 2 400 85.08 37.86 31.5 Y VESA 640 2 480 59.
E–42 PC Control Codes Function Code Data PO WER ON 02H 00H 00H 00H 00H 02H PO WER OFF 02H 01H 00H 00H 00H 03H INPUT SELECT RGB 02H 03H 00H 00H 02H 01H 01H 09H INPUT SELECT VIDEO 02H 03H 00H 00H 02H .
E–43 Cable Connection Communication Pr otocol Baud rate: 9600 bps Data length: 8 bits Parity: No parity Stop bit: One bit X on/off: None Communications Full duplex procedur e: If the CPU of the projector has recei ved the data correctly , it returns an A CK(C5H).
Printed in Japan 78410871.
An important point after buying a device NEC LT84/LT140 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought NEC LT84/LT140 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data NEC LT84/LT140 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, NEC LT84/LT140 you will learn all the available features of the product, as well as information on its operation. The information that you get NEC LT84/LT140 will certainly help you make a decision on the purchase.
If you already are a holder of NEC LT84/LT140, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime NEC LT84/LT140.
However, one of the most important roles played by the user manual is to help in solving problems with NEC LT84/LT140. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device NEC LT84/LT140 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
