Instruction/ maintenance manual of the product LT35 Acoustic Energy
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Po r table Pr ojector L T35/L T30/L T25 User’ s Manual.
© NEC Viewtechnology , Ltd. 2005 First edition September 2005 • Digital Light Processing and DLP are trademarks of T e xas Instruments. • IBM is a trademark or registered trademark of Inter national Business Machines Corporation. • Macintosh, Mac OS X and P owerBook are tr ademarks of Apple Computer , Inc.
i Important Information Safety Cautions Precautions Please read this manual carefully bef ore using your NEC L T35/L T30/L T25 projector and k eep the manual handy for future ref erence. Y our serial number is located on the bottom of y our projector.
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 v oid y our right to operate this equipment.
iii Important Information Fire and Shock Pr ecautions • Ensure that there is sufficient v entilation and that vents are unobstructed to pre vent the build-up of heat inside y our projector . Allow at least 4 inches (10cm) of space between y our projector and a wall.
iv Remote Control Pr ecautions • Handle the remote control carefully . • If the remote control gets wet, wipe it dry immediately . •A v oid excessiv e heat and humidity . • Do not heat, take apart, or throw batteries into fire. • If you will not be using the remote control f or a long time, remov e the batter ies.
v T able of Contents Important Information ........................................................................... i 1. Introduction ........................................................................................ 1 What's in the Bo x? .
vi T able of Contents 4. Convenient Featur es ...................................................................... 28 Tu r ning Off the Image and Sound ............................................................................... 28 F reezing a Picture .
1 What's in the Box? Make sure y our box contains e ver ything listed. If any pieces are missing, contact y our dealer . Please sav e the original box and pac king mater ials if you e ver need to ship y our projector . LAM P STATUS POWER S O UR CE AU TO A DJ.
2 1. Introduction Intr oduction to the Projector This section introduces y ou to your new projector and describes the f eatures and controls. Congratulations on Y our Purchase of the Pr ojector This projector is one of the v er y best projectors availab le today .
3 About this user's manual The f astest wa y to get star ted is to tak e your time and do e verything r ight the first time. T ake a f ew minutes no w to re view the user's manual. This may sa ve you time later on. At the beginning of each section of the manual you'll find an ov er view .
4 1. Introduction Part Names of the Pr ojector L A M P S T A T U S P O W E R S O U R C E A U T O A D J . F O C U S O N /S T A N D B Y S E L E C T C O M P U T E R IN A U D IO IN S -V ID EO IN V ID E O IN L A M P S TA TU S P O W ER S O U R C E A U T O A D J .
5 1. Introduction Bottom Lamp Cov er ( → page 47 ) Rear foot ( → page 21 ) Rear foot ( → page 21 ).
6 1. Introduction T op Features LAMP STATUS POWER SOURCE AUTO ADJ. FOCUS ON/STAND BY SELECT 10 2 4 1 5 89 3 6 7 11 1. PO WER Button (ON / ST AND BY) ( ) ( → page 17 , 27 ) 2. PO WER Indicator ( → page 16 , 17 , 27 , 50 ) 3. ST A TUS Indicator ( → page 50 ) 4.
7 1. Introduction Part Names of the Remote Contr ol 1. Infrared T ransmitter ( → page 8 ) 2. PO WER ON Button ( → page 17 ) 3. PO WER OFF Button ( → page 27 ) 4. FOCUS (+) (–) Button ( → page 24 ) 5. PIC-MUTE Button ( → page 28 ) 6. P A GE (UP) / (DO WN) Button* ( → page 31 ) 7.
8 1. Introduction 30˚ 30˚ Remote Control Pr ecautions • Handle the remote control carefully . • If the remote control gets wet, wipe it dry immediately . •A v oid excessiv e heat and humidity . • Do not heat, take apart, or throw batteries into fire.
9 This section describes how to set up y our projector and how to connect video and audio sources. 2. Installation and Connections Setting Up the Scr een and the Projector Selecting a Location The fur ther your projector is from the screen or w all, the larger the image.
10 2. Installation and Connections Throw Distance and Scr een Size The f ollowing shows the proper relativ e positions of the projector and screen. Ref er to the table to deter mine the position of installation.
11 2. Installation and Connections W ARNING * Installing y our projector on the ceiling must be done by a qualified technician. Contact your NEC dealer for more inf or mation. * Do not attempt to install the projector yourself . • Only use your projector on a solid, le vel surface .
12 2. Installation and Connections Making Connections Connecting Y our 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.
13 2. Installation and Connections PC CONTROL AUDIO IN S-VIDEO IN VIDEO IN COMPUTER IN COMPUTER IN Bef ore connections: An exclusiv e SCART adapter (ADP-SC1) and a commercially a vailab le SCART cable are re- quired f or this connection. F rom the menu, select [Setup - Options] → [Signal Select] → [Computer] → [Scart].
14 AUDIO IN LR AUDIO OUT L R Component YC b C r COMPUTER IN PC CONTROL S-VIDEO IN VIDEO IN AUDIO IN COMPUTER IN AUDIO IN 2. Installation and Connections A component signal will be automatically displa yed.
15 2. Installation and Connections AUDIO IN LR AUDIO OUT L R VIDEO OUT S-VIDEO VIDEO COMPUTER IN PC CONTROL AUDIO IN S-VIDEO IN VIDEO IN VIDEO IN AUDIO IN S-VIDEO IN Connecting Y our VCR or Laser Disc.
16 2. Installation and Connections COMPUTER IN AUDIO IN S-VIDEO IN VIDEO IN LAMP STATUS POWER SOURCE AUTO ADJ. FOCUS ON/STAND BY S E LE C T PC CONTROL LAMP STATUS ON/STA POWER Connecting the Supplied Power Cable Connect the supplied power cab le to the projector .
17 3. Pr ojecting an Image (Basic Operation) This section describes how to turn on the projector and to project a picture onto the screen. T urning on the Projector NOTE: Before turning on the pro.
18 EXIT MENU UP PAGE OFF POWER ON PIC-MUTE DOWN FOCUS ENTER FOCUS SELECT FOCUS SELECT 3. Projecting an Image (Basic Operation) Note on Startup scr een (Menu Language Select screen) When you first turn on the projector , you will get the Startup menu. This menu giv es you the oppor tunity to select one of the nine menu languages .
19 3. Projecting an Image (Basic Operation) Selecting a Sour ce Selecting the computer or video source LAMP STATUS POWER SOURCE AUTO ADJ. FOCUS ON/STAND BY SELECT LAMP MODE VOLUME S-VIDEO VIDEO L-CLICK MOUSE R-CLICK AUTO ADJ. COMPUTER ASPECT HELP FREEZE PICTURE NOTE: T urn on the computer or VCR connected to the projector .
20 3. Projecting an Image (Basic Operation) Place your projector on a flat le vel surf ace and ensure that the projector is square to the screen. Lift the front edge of the projector to center the image v er tically . * If the projected image does not appear square to the screen then use the K eystone f eature for proper adjust- ment.
21 2 LAMP ST AT U S P O WER S O U R C E A U T O A D J . F O C U S O N / S T A N D B Y SE L EC T 1 3 3. Projecting an Image (Basic Operation) Adjust the Tilt Foot 1.
22 3. Projecting an Image (Basic Operation) Zoom Use the ZOOM le ver 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 f ocus sensor on the projector detects the distance to the screen and automatically adjusts the focus of an image .
23 Auto Keystone Correction The A uto Ke ystone correction feature will correct the v er tical distor tion of a projected image on the screen. No special operation required.
24 3. Projecting an Image (Basic Operation) Adjusting Focus Manually Adjust the f ocus manually in the follo wing cases: • When adjusting the f ocus out of the effectiv e range of the automatic .
25 Corr ecting Keystone Distortion Manually Y ou can also correct the v er tical k eystone distor tion manually . NOTE: Manual keystone correction is not available when there is no signal received by any input.
26 LAMP STATUS POWER SOURCE AUTO ADJ. FOCUS ON/STAND BY SELECT 3. Projecting an Image (Basic Operation) [P oor picture] [Nor mal picture] Increase v olume Decrease v olume LAMP MODE VOLUME S-VIDEO VIDEO AUTO ADJ. COMPUTER ASPECT HELP FREEZE PICTURE Sound le vel from the speaker can be adjusted.
27 T urning off the Projector To turn off the pr ojector: 3. Projecting an Image (Basic Operation) LAMP STATUS POWER SOURCE AUTO ADJ. ON/STAND BY ENTER EXIT MENU UP PAGE OFF POWER ON PIC-MUTE DOWN FOCUS First, press the PO WER (ON/ST AND BY) button on the projector cabinet or the PO WER OFF button on the re- mote contr ol.
28 4. Convenient Featur es 쐃 T urning off the Image and Sound Press the PIC-MUTE button to turn off the image and sound f or a shor t period of time. Press again to restore the image and sound. ENTER EXIT MENU UP PAGE OFF POWER ON PIC-MUTE DOWN FOCUS 쐇 Fr eezing a Picture Press the FREEZE button to freez e a picture.
29 4. Convenient Features 3. Select [On] and press the ENTER b utton. The [Keyw ord] screen will be displa yed. 4. T ype in a combination of the four SELECT buttons and press the ENTER b utton. NOTE: A keyword must be four to 10 digits in length.
30 4. Convenient Features To disable the Security function: 1. Press the MENU button. The menu will be displa yed. 2. Select [Setup - Installation] → [Security] and press the ENTER b utton. The Off/On menu will be displa yed. 3. Select [Off] and press the ENTER button.
31 30 ° 30 ° 4. Convenient Features Using the Optional Remote Mouse Receiver The optional remote mouse receiv er enables you to operate y our computer’ s mouse functions from the remote control. It is a great con venience f or clicking through your computer-gener ated presentations.
32 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 contr ol or projector cabinet to displa y the main menu.
33 5. Using On-Screen Menu ENTER EXIT MENU UP PAGE OFF POWER ON PIC-MUTE DOWN FOCUS 6. Repeat steps 2-5 to adjust an additional item, or press the EXIT button se veral times to close the menu. Slide bar Solid triangle Return key symbol Radio button For Adjusting items (Slide bar) Slide bar .
34 5. Using On-Screen Menu 쐇 Menu Elements Highlight Title Slide bar Off Timer remaining time Source Radio button Solid triangle Ke y Lock symbol Menu windo ws or dialog box es typically have the f ollowing elements: T itle .........................
35 Picture Default Item Preset 1 to 5 Detail Settings Reference * Presentation, Video, Mo vie, Graphic, sRGB Gamma Correction * Dynamic, Natural, Blac k Detail Color T emperature * 5000, 6500, 7800, 8.
36 Information Item Usage Time Lamp Lif e Remaining Lamp Hours Used Projector Hours Used Source Horizontal F requency Ve r tical F requency Video T ype NTSC , NTSC3.
37 5. Using On-Screen Menu 쐏 Menu Descriptions & Functions [Pictur e] Preset Detail Settings Selecting Ref erence Setting [Reference] This option allows y ou to select one of 5 user adjustable presettings . There are 5 factory presets optimized for va r ious types of images , you can set user adjustab le settings.
38 5. Using On-Screen Menu Adjusting Brightness, Contrast, Sharpness, Color and Hue Y ou 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.
39 5. Using On-Screen Menu 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.
40 5. Using On-Screen Menu 쐂 Menu Descriptions & Functions [Setup] [Setup - General] Enabling A uto Ke ystone [Auto Ke ystone] This f eature allows the projector to detect its tilt and correct v er tical distortion automatically . Tu rn on the Auto K eystone f eature, select “On".
41 5. Using On-Screen Menu [Setup - Installation] Selecting Projector Orientation [Orientation] This sets your image f or your type of projection application. The options are: desktop front projection, ceiling rear projection, desktop rear projection, and ceiling front projection.
42 Enabling Security [Security] This f eature tur ns on or off the Secur ity function. Unless the correct ke yword is entered, the projector cannot project an image. ( → page 28 ) Selecting Menu Color [Menu Color Select] Y ou can choose between two color modes f or menu color: color and monochrome .
43 Setting Off Timer [Off Timer] Y ou can use the Off Timer f eature to tur n 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 A uto Focus [Auto Focus] This option turns on or off the Auto F ocus feature .
44 5. Using On-Screen Menu 쐆 Menu Descriptions & Functions [Information] Displa ys the status of the current signal and lamp usage. This item has three pages.
45 5. Using On-Screen Menu Menu Descriptions & Functions [Reset] Returning to Factory Default [Reset] The F actor y Def ault feature allows y ou to change adjustments and settings to the facto.
46 6. Maintenance This section describes the simple maintenance procedures you should f ollow to clean the f ocus sensor , lens and replace the lamp . Cleaning the Lens and Focus Sensor Cleaning the lens Use a blo wer or lens paper to clean the lens, and be careful not to scr atch or mar the lens.
47 쐋 Replacing the Lamp After your lamp has been oper ating for 2000 hours (up to 2500 hours in Eco mode) or longer , the LAMP indicator in the cabinet will b link red and the message [The lamp has reached the end of its usable lif e . Please replace the lamp.
48 3. Loosen the two scre ws securing the lamp housing until the phillips screwdriver goes into a freewheeling condition. The two scre ws are not remov able . Remove the lamp housing b y holding it. 6. Maintenance NOTE: There is an interlock on this case to prevent the risk of electrical shock.
49 6. Maintenance 7. Connect the supplied power cable and turn on the pr ojector . 8. Finally , select the menu → [Reset] → [Clear Lamp Hours] to reset the lamp usage hour s. 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.
50 7. Appendix T r oubleshooting This section helps you resolv e problems y ou may encounter while setting up or using the projector . Indicator Messages Power Indicator Indicator Condition Projector Condition Note Off Blinking light Steady light Green Orange Green Orange 0.
51 7. Appendix Common Problems & Solutions ( → "Po wer/Status/Lamp Indicator" on page 50 .) Does not turn on Will turn off No picture Picture suddenly becomes dark Color tone or hue is.
52 7. Appendix If there is no picture, or the picture is not displayed correctl y . •P ow er on process for the projector and the PC . Be sure to connect the projector and notebook PC while the projector is in standb y mode and before turning on the pow er to the notebook PC.
53 7. Appendix Specifications This section provides technical inf or mation about the L T35/L T30/L T25 projector's performance. Model Number L T35/L T30/L T25 Optical DMD Single Chip Digital.
54 7. Appendix Mechanical Installation Orientation Desktop/F ront, Desktop/Rear , Ceiling/Front, Ceiling/Rear Dimensions 10.2" (W) x 3.5" (H) x 8.2" (D) 260 mm (W) x 89 mm (H) x 208.5 mm (D) (not including protrusions) Net Weight 4.4 lbs / 2.
55 7. Appendix Cabinet Dimensions LAMP STATUS POWER SOURCE AUTO ADJ. FOCUS ON/STAND BY SELECT COMPUTER IN PC CONTROL AUDIO IN S-VIDEO IN VIDEO IN 260 (10.
56 Mini D-Sub 15 Pin Connector Pin Assignments of D-Sub COMPUTER Input Connector Signal Level Video signal : 0.7Vp-p (Analog) Sync signal : TTL le vel 11 15 12 14 13 6 5 4 3 2 1 10 79 8 7.
57 7. Appendix Compatible Input Signal List Signal Resolution F requency H. Refresh Rate ( Dots ) ( kHz ) ( Hz ) NTSC – 15.73 60.00 PA L– 15.63 50.00 P AL60 – 15.73 60.00 SECAM – 15.63 50.00 VESA 640 ⳯ 480 31.47 59.94 IBM 640 ⳯ 480 31.
58 7. Appendix PC Contr ol Codes and Cable Connection PC Contr ol Codes Function Code Data POWER ON 02H 00H 00H 00H 00H 02H POWER OFF 02H 01H 00H 00H 00H 03H INPUT SELECT COMPUTER 02H 03H 00H 00H .
59 No power (POWER indicator does not light green) See also “Sta- tus Indicator (ST A TUS)”. Power cable's plug is fully inserted into the wall outlet. The power cable has been unplugged and plugged quickly dur - ing projection. Lamp cover is installed correctly .
60 7. Appendix In the space below please describe your problem in detail. Information on application and environment where your projector is used Pr ojector Model number: Serial No.
61 7. Appendix T ravelCar e Guide T ravelCare - a service for international travelers This product is eligible f or "T rav elCare", NEC's unique international war- r anty . Please note that T ravelCare cov erage diff ers in par t from co verage un- der the warr anty included with the product.
62 7. Appendix Lenso Communication Co ., Ltd. Address: 292 Lenso House 4, 1st Floor , Sr inakarin 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 .
63 7. Appendix TO : NEC or NEC's Authorized Service Station: FM: (Company & Name with signature) Dear Sir (s), I would lik e to apply your T ravelCare Service Program based on attached regist.
64 7. Appendix 5. Loan Ser vice Charges and Conditions: Upon acceptance of this NEC Projector , Customer agrees to assume liability for this loan unit.
An important point after buying a device Acoustic Energy LT35 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Acoustic Energy LT35 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 Acoustic Energy LT35 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Acoustic Energy LT35 you will learn all the available features of the product, as well as information on its operation. The information that you get Acoustic Energy LT35 will certainly help you make a decision on the purchase.
If you already are a holder of Acoustic Energy LT35, 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 Acoustic Energy LT35.
However, one of the most important roles played by the user manual is to help in solving problems with Acoustic Energy LT35. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Acoustic Energy LT35 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
