Instruction/ maintenance manual of the product LT20 NEC
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i Important Information Safety Cautions Precautions Please read this manual carefully bef ore using your NEC L T20 Projector and keep the man ual handy for future ref er- ence. Y our serial number is located on the bottom of y our projector . Record it here: CA UTION T o tur n off main pow er , be sure to remove the plug from po wer outlet.
ii Important Information RF Interference (for USA only) W ARNING The F ederal Communications Commission does not allow an y modifications or changes to the unit EXCEPT those specified by NEC Solutions (America), Inc. in this manual. F ailure to comply with this government regulation could void y our right to operate this equipment.
iii Important Information Fire and Shock Pr ecautions 1. Ensure that there is sufficient v entilation and that vents are unobstructed to prev ent the build-up of heat inside y our projector. Allow at least 12 inches ( 3 0 cm) of space betw een your projector and a wall.
1 ... English Table of Contents T able of Contents ....................................................................................... 1 Usage Notice .............................................................................................. 2 Precautions .
2 English ... Usage Notice Precautions Follow all warnings, precautions and maintenance as recom- mended in this user’s guide to maximize the life of your unit. Warning- Do not look into the projector’s lens when the lamp is on. The bright light may hurt your eyes.
3 ... English Do: Turn off the projector before cleaning. Use a soft cloth moistened with mild detergent to clean the display housing. Disconnect the power plug from AC outlet if the projector is not being used for a long period of time. Don’t: Block the slots and openings on the projector provided for ventilation.
4 English ... Product Features This product is an XGA single chip 0.7” DLP TM projector. Outstanding features include: True XGA, 1024 x 768 addressable pixels Single chip DLP TM technology NTSC/NTSC4.
5 ... English Power Cord 1.8m VGA Cable 1.8m Remote Control 2 x Battery Introduction Composite Video Cable 1.8m Projector with lens cap What's in the Box? This projector comes with all the items shown below. Check to make sure your unit is complete.
6 English ... Main Unit Product Overview 1 . Zoom Lever 2 . Focus Ring 3 . Zoom Lens 4 . Elevator Foot 5 . Elevator Button 6 . Remote Sensor 7 . Control Panel 8 .
7 ... English Control Panel 1 . Lamp Indicator LED 2 . Status Indicator LED 3 . Power Indicator LED 4 . Enter 5 . Keystone Correction 6 . Exit 7 . Source 8 .
8 English ... Introduction Connection Ports 1 . Kensington TM Lock Port 2 . For Service Use Only 3 . S-Video Input Connector 4 . Composite Video Input Connector 5 .
9 ... English Remote Control 8 9 1 . IR LEDS 2 . Auto Adjustment 3 . Power 4 . Keystone Correction 5 . Exit 6 . Aspect Ratio 7 . Freeze 8 . Source 9 . Four Directional Select Keys 1 0 .
10 English ... 1. ............................................................................................................. Power Cord 2. .............................................................................................................
11 ... English Installation On/Standby Powering On the Projector 1. Remove the lens cap. 2. Ensure that the power cord and signal cable are securely connected. The Power LED will turn orange . 3. Turn on the lamp by pressing “On/Standby” button on the control panel.
12 English ... Installation Warning Indicator When the “LAMP” indicator lights solid red , the projector will automatically shut itself down. Please contact your local reseller or service center. When the “STATUS” indicator lights solid red , it indicates the projector has been overheated.
13 ... English Adjusting the Projected Image Adjusting the Projector Image Height Tilt Adjusting Wheel Elevator Foot 1 2 3 Elevator Button The projector is equipped with an elevator foot for adjusting the image height. To raise the image: 1. Press the elevator button n .
14 English ... 63.4" (160.9cm) 105.6" (268.2cm) 147.8" (375.5cm) 169.0" (429.2cm) 21 1.2" (536.5cm) 36.9" (93.8cm) 73.8" (187.5cm) 123.0" (312.5cm) 172.2" (437.5cm) 196.9" (500.0cm) 246.1" (625.0cm) 4.
15 ... English User Controls Remote Control Control Panel Control Panel & Remote Control There are two ways for you to control the functions: Remote Control and Control Panel. Using the Control Panel On/Standby Refer to the “Powering On/Off the Projector” section on pages 11-12.
16 English ... User Controls Using the Remote Control Power Refer to the “Powering On/Off the Projector” section on pages 11-12. AUTO ADJ. (Auto adjustment) Automatically synchronizes the projector to the input source. Keystone Adjusts image distortion caused by tilting the projector (±8 degrees).
17 ... English The Projector has multilingual On-Screen menus that allow you to make image adjustments and change a variety of settings. The projector will automatically detect the source. How to operate 1. To open the OSM menu, press “Menu” on the Remote Control or Control Panel.
18 English ... Language Language Choose the multilingual OSM menu . Use the or key to select your preferred language. Press “Enter” to finalize the selection.
19 ... English Image (All) Brightness Adjust the brightness of the image. Press the to darken image. Press the to lighten the image. Contrast The contrast controls the degree of difference between the lightest and darkest parts of the picture.
20 English ... Image (All) 4:3 : The input source will be scaled to fit the projection-screen. 16:9 : The input source will be scaled to fit the width of the screen. Display Mode There are many factory presets optimized for various types of images.
21 ... English Image Computer (Computer mode) Auto Adjust The projector automatically adjusts clock, phase, horizontal and vertical. With most signal sources, Auto Adjust provides the best results. Clock “Clock”changes the display data frequency to match the frequency of your computer’s graphic card.
22 English ... Image Video (Video mode) Color Adjusts a video image from black and white to fully saturated color. Press the to decrease the amount of color in the image. Press the to increase the amount of color in the image. Sharpness Adjusts the sharpness of the image.
23 ... English Setup Menu Location Choose the menu location on the display screen. Orientation Front-Desktop The factory default setting. Rear-Desktop When you select this function, the projector reverses the image so you can project behind a translucent screen.
24 English ... Setup User Controls Lamp Mode Choose “ECO” to dim the projector lamp which will lower power consumption and extend the lamp life by up to 150%. Choose ”Normal” to return standard mode. Lamp Reminding Choose this function to show or to hide the warning message when the changing lamp message is displayed.
25 ... English Appendices Problem: No image appears on-screen. Ensure all the cables and power connections are correctly and securely connected as described in the “Installation” section. Ensure the pins of connectors are not crooked or broken.
26 English ... Appendices 4. Follow the above steps 1-2. Click on the “Advanced Properties” button. 5. Select the “Change” button under the “Monitor” tab. 6. Click on “Show all devices”. Then select “Standard monitor types” under the “Manufacturers” box; choose the resolution mode you need under the “Models” box.
27 ... English Problem: The image is stretched when displaying 16:9 DVD. The projector automatically detects 16:9 DVD and adjusts the aspect ratio by digitizing to full screen with 4:3 default setting.
28 English ... Replacing the lamp The projector will detect the lamp life itself. It will show you a warning message “The lamp has reached the end of its usable life. Please replace the lamp.” When you see this message, change the lamp as soon as possible.
29 ... English Specifications Light Valve - Single Chip DLP TM Technology by Texas Instruments Number of Pixels - 1024 pixels(H) X 768 lines(V) Displayable Color - 16.7M colors Projection Lens - F/2.7~2.88 f=28.43~32.75mm with 1.15x Manual zoom lens Projection Screen Size (Diag.
30 English ... VES A VGA 640 x 35 0 70 31 . 5 VES A VGA 640 x 35 0 85 37 . 9 VES A VGA 640 x 40 0 85 37 . 9 VES A VGA 640 x 48 0 60 31 . 5 VES A VGA 640 x 48 0 72 37 . 9 VES A VGA 640 x 48 0 75 37 . 5 VES A VGA 640 x 48 0 85 43 . 3 VES A VGA 720 x 40 0 70 31 .
A-1 Appendix T ravelCar e Guide T ravelCare - a service for international travelers This product is eligible f or "T rav elCare", NEC's unique inter national war- ranty . Please note that T ra velCare cover age differs in part from coverage un- der the warr anty included with the product.
A-2 Appendix Lenso Communication Co ., Ltd. Address: 292 Lenso House 4, 1st Floor , Srinakarin Road, Huamark, Bangkapi, Bangkok 10240, Thailand T elephone: +66 2 375 2425 F ax Line: +66 2 375 2434 Email Address: pattara@lenso .com WEB Address: http://www .
A-3 Appendix T O: NEC or NEC's A uthorized Service Station: FM: (Company & Name with signature) Dear Sir (s), I would lik e to apply your T ravelCare Service Program based on attached registr.
A-4 Appendix Ve r. 1 01/0 5 5. Loan Ser vice Charges and Conditions: Upon acceptance of this NEC Projector , Customer agrees to assume liability for this loan unit.
NEC SOLUTIONS’ PROJECTOR PRODUCTS NEC Solutions (America), Inc. (hereafter NEC Solutions) warrants this product to be free from defects in material and workmanship under the following terms.
DECLARA TION OF CONFORMITY U.S. Responsible Party: Address: Tel. No.: NEC Solutions (America), Inc. 1250 N. Arlington Heights Road Itasca, Illinois 60143 (630) 467-5000 Type of Product: Equipment Clas.
An important point after buying a device NEC LT20 (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 LT20 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 LT20 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, NEC LT20 you will learn all the available features of the product, as well as information on its operation. The information that you get NEC LT20 will certainly help you make a decision on the purchase.
If you already are a holder of NEC LT20, 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 LT20.
However, one of the most important roles played by the user manual is to help in solving problems with NEC LT20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device NEC LT20 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
