NEC Mt820 Projector Users Manual

							Settings Menu
Enables you to set preferences and other operating options. Use the ÒSelectÓ button on the projector cabinet or
(s) (t) buttons on your remote control to access the submenu you want.
Custom Memory
 This enables you to save your current settings for an RGB source in one of five memories, Custom 1-5.
To change the STANDARD settings, proceed as follows:
1. Connect your computer to the MultSync MT1020/MT820.
2. Select the STANDARD in RGB 1 or RGB 2 source.
3. Adjust the horizontal/vertical position, Picture, and Fine Picture adjustments.
4. Select the Custom Memory icon.
5. Press the Adjust (+) or (Ð) buttons to choose a memory location, then press Enter on the cabinet or the Left
Click on your remote control to save the new settings.
If you do not want to change the STANDARD settings, first select the Custom Memory icon, then do the same
as step 5.
Image Loop
This feature enables you to ÒcaptureÓ an image from a source that is currently being displayed. Up to 8 images
can be stored.
Press the ÒAdjustÓ (+) or (Ð) buttons to select Start for the image you want to loop and ÒCaptureÓ for the
image you want to capture or to select ÒDeleteÓ and delete all captured images from memory. Press ÒEnterÓ on
the cabinet or the ÒLeft ClickÓ on your remote control to save your image loop changes. To stop an image loop,
press one of the ÒVideoÓ, ÒS-VideoÓ, ÒRGB1Ó or ÒRGB2Ó button, or using the Source menu.
OPERATION
59
60 Background
Use this feature to display a black or blue screen or to start an image loop when no input signal is available.
Press the ÒAdjustÓ (+) or (Ð) buttons to choose the back screen you want Ñ blue, black or an image loop. Press
ÒEnterÓ on the cabinet or the ÒLeft ClickÓ on your remote control to save your change.
NOTE: This feature will not work with Video or S-video sources and the projector will display a black image if no
input signal is present.
Projection
This reorients your image for your type of projection.  Press the ÒAdjustÓ (+) or (Ð) button until it is correct.
Press ÒENTERÓ on the cabinet or the ÒLeft ClickÓ on your remote control to save your change. The options are:
front floor projection, rear ceiling projection, rear floor projection, and front ceiling projection.
Language
Use the ÒAdjustÓ (+) or (Ð) to choose one of six languages for on-screen instructions. Press ÒENTERÓ on the
cabinet or the ÒLeft ClickÓ on your remote control to save your change The options are: English, German,
French, Italian, Spanish and Swedish.
Reset
Changes all adjustments to the factory preset levels for each source individually. To activate, you must hold
down the ÒAdjustÓ (+) button on the cabinet or remote control for at least two seconds. The adjustments that will
be reset are horizontal and vertical control, picture and fine picture adjustment (for the current source only),
brightness, contrast, color, tint, and sharpness.
* When custom setting is selected, reset changes all adjustment to the factory preset levels of the current input
signal for selected custom memory location.
This will not return to your previous custom settings and will delete your saved settings from custom memory. 
						

							This section describes the simple maintenance procedures you should follow
to replace the lamp, clean or replace the filter, and replace the batteries in the
remote control.
Replacing The Lamp
After your lamp has been operating for 2000 hours or longer, the
ÒstatusÓ light in the cabinet will go on. Even though the lamp may still
be working, replace it at 2000 hours to maintain optimal projector
performance.
CAUTION
¥ DO NOT TOUCH THE LAMP immediately after it has been used. It will
be extremely hot. Allow at least one hour for the lamp to cool before
handling.
¥ DO NOT REMOVE ANY SCREWS except the lamp cover set screw
and  two lamp case screws. You could receive an electric shock.
¥ Turn off the main power to the projector and disconnect the power cord.
Allow at least one hour for the lamp to cool.
¥ The projector will turn off and go into stand by mode after 2100 hours of
service.  If this happens, be sure to replace the lamp. If you continue to
use the lamp after 2000 hours of use, the lamp bulb may shatter, and
pieces of glass may be scattered in the lamp case. Do not touch them as
the pieces of glass may cause injury. If this happens, contact your NEC
dealer for lamp replacement.
MAINTENANCE 4
To replace the lamp:
1. Remove the single screw that secures the lamp housing cover and remove
the cover.
2. Remove the two screws securing the lamp case. (There is an interlock on
this case to prevent the risk of electrical shock. Do not attempt to circum-
vent this interlock.)
3. Remove the lamp by pulling out the complete assembly.
4. Install a new lamp case assembly and secure it in place with the two screws.
CAUTION: Do not use a lamp other than the NEC replacement lamp.
Order this from your NEC dealer using your projectors model number.
5. Reattach the lamp cover and reinstall the single screw.
6. After you install a new lamp, select the lamp Usage icon and press and hold
the Power On button on the remote control for ten seconds to reset the
lamp time clock to zero.
NOTE: If resetting the lamp clock back to zero after 2100 hours of service, press
the Power Off (not Power On) button on the remote control for ten seconds .
NOTE: When you replace the lamp, it is also wise to replace the filter. The filter
comes in the same package with your replacement lamp.
 CAUTION: Do not put the LCD projector on end except to replace the air
filter.
    
  
     
 






 




 

 



 




 






 




 






 




 






 




Step 1A
Step 1B
Step 2
Step 3
Step 4
Step 5
Interlock
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							Cleaning Or Replacing The Filter
The air-filter sponge keeps the inside of the MultiSync MT1020/MT820 LCD Projector free from
dust or dirt and should be cleaned after every 100 hours of operation (more often in dusty conditions).
If the filter is dirty or clogged, your projector may overheat.
NOTE:  Clean your filter after every 100 hours of operation.
CAUTION
¥ Turn off the LCD projector and wait for the fan to stop. Turn off the main power and unplug
the projector before replacing the filter.
¥ Only clean the outside of the filter cover with a vacuum cleaner.
¥ Do not attempt to operate the projector without a filter.
¥ Your LCD projector will not operate unless the filter is installed correctly.
¥ Do not put the LCD projector on end except to replace the filter.
To clean the air-filter:
1. Turn over the projector. Put the LCD projector on end so that the bottom is visible.
2. Vacuum the filter through the filter cover.
3. Place the projector back in a horizontal position.
To replace the air-filter:
1. Remove the filter panel by pushing up on the catch of the cover with a flat-head screwdriver until
you feel it detach.
2. Remove the filter and replace it.
3. Reinstall the filter panel.
NOTE: Do not detach the sponge from the filter cover. Do not wash the filter with soap and water.
Soap and water will damage the filter membrane.
Before replacing the air-filter, remove dust and dirt from the projector cabinet. Keep out dust
and dirt during filter replacement.
Remote Control Battery Installation
1. Press firmly and slide the battery cover off.
2. Remove both old batteries and install new ones (AA). Ensure that you have the batteries polarity
(+/Ð) aligned correctly.
3. Slip the cover back over the batteries until it snaps into place.
  
 
 
 




 





 




 





 




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Etape 1A
Etape 1B
Etape 2
Etape 3
Etape 4
Etape 5
Enclenchement
MAINTENANCE
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Cette section dŽcrit les procŽdures simples dÕentretien que vous aurez ˆ suivre pour
remplacer la lampe, nettoyer ou remplacer le filtre et remplacer les piles de la tŽlŽcommande.
Remplacement de la lampe
Lorsque la lampe a ŽtŽ utilisŽe pendant 2000 heures ou plus, le voyant ÒStatusÓ (Žtat) du

2000 heures pour conserver une performance optimale de votre projecteur.
PRECAUTIO N
¥

chaude. Laissez-la refoidir pendant au moins une heure avant de la manipuler.
¥ NE RETIREZ AUCUNE VIS mis ˆ part la vis qui fixe le couvercle de lampe
et les deux vis du compartiment de lampe. Vous risquez de recevoir une
dŽcharge ŽlŽctrique.
¥ Mettez le projecteur hors circuit et dŽbranchez le cordon dÕalimentation.
Laissez refroidir la lampe pendant au moins une heure.
¥ 

2000 heures dÕutilisation, lÕampoule peut se briser et des brisures de verre

car elles peuvent vous blesser. Dans ce cas, contactez votre revendeur NEC
afin de procŽder au remplacement de la lampe.
 Pour remplacer la lampe :
1.
Retirer lÕunique vis qui fixe le couvercle de lampe et retirez le couvercle.
2.Retirez les deux vis qui fixent le compartiment de lampe. (Afin de prŽvenir
contre un risque de dŽcharge Žlectrique, il y a un enclenchement sur ce
compartiment. Ne tentez pas de dŽtourner cet enclenchement.)
3. Retirez la lampe en tirant tout lÕassemblage.
4.
Installez un nouvel assemblage de compartiment lampe et fixez-le avec les deux vis.
PRECAUTION:  NÕutilisez  pas dÕautres lampes quÕune lampe de
rechange NEC.


5. Fixez de nouveau le couvercle de lampe et replacez la vis unique.
6.
Une fois la nouvelle lampe installŽe, sŽlectionnez lÕicone dÕutilisation de lampe
et appuyez et maintenez la touche ÒPower OnÓ (alimentation activŽe) de la
tŽlŽcommande pendant dix secondes afin de remettre ˆ zŽro lÕhorloge de lampe.
REMARQUE : 
dÕutilisation, appuyez sur la touche ÒPower OffÓ (alimentation dŽsactivŽe)(et non
ÒPower OnÓ (alimentation activŽe)) de la tŽlŽcommande pendant dix secondes .
REMARQUE:  Lorsque vous remplacez la lampe, il est recommandŽ de changer

PRECAUTION:  Ne dressez pas le projecteur debout sauf pour
changer le filtre ˆ air. 
						

							 





 




 





 




 





 




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Nettoyage ou remplacement du filtre
Le coussin Žponge du filtre ˆ air maintient lÕintŽrieur du projecteur ˆ affichage ˆ cristaux liquides

heures dÕutilisation (plus souvent dans les endroits poussiŽreux). Si le filtre est sale ou bouchŽ, le
projecteur risque de surchauffer.
REMARQUE:   Nettoyez le filtre toutes les 100 heures dÕutilisation.
PRECAUTION
¥ Mettez le projecteur ˆ affichage ˆ cristaux liquides hors circuit et attendez que le ventilateur

¥ Nettoyez uniquement le couvercle extŽrieur du filtre avec un aspirateur.
¥ NÕessayez pas de faire fonctionner le projecteur sans filtre.
¥ Votre projecteur ˆ affichage ˆ cristaux liquides ne fonctionnera pas tant que le filtre ne sera pas
installŽ correctement.
¥ Ne dressez pas le projecteur ˆ affichage ˆ cristaux liquides debout sauf pour remplacer le filtre.
Pour nettoyer le filtre ˆ air:
1. 

2. Aspirez le filtre ˆ travers le couvercle de filtre.
3. Remettez le projecteur en position horizontale.
Pour remplacer le filtre ˆ air :
1. Retirez le panneau du filtre en poussant vers le haut sur le cliquet du couvercle ˆ lÕaide dÕun tournevis

2. Retirez le filtre et remplacez-le.
3. RŽinstallez le panneau du filtre.
NOTE:Ne dŽtachez pas le coussin Žponge du couvercle de filtre. Ne lavez pas le filtre au savon et ˆ lÕeau. Le savon
et lÕeau endommageront la membrane du filtre.
Avant de remplacer le filtre ˆ air, dŽpoussiŽrez et nettoyez le coffret du projecteur. Maintenez propre
pendant le remplacement du filtre.
Installation des piles de la tŽlŽcommande
1. Appuyez fermement et retirez le couvercle des piles en le faisant glisser.
2. Retirez les deux piles usagŽes et installez de nouvelles piles (AA). Assurez-vous de respecter la
polaritŽ (+/Ð) des piles.
3. Remettez le couvercle des piles en le faisant glisser, jusquÕˆ ce quÕil sÕembo”te. 
						

							This section helps you resolve problems you may encounter while setting up or using your MultiSync MT1020/MT820 LCD Projector.
Status Light Messages
TROUBLESHOOTING 5
TROUBLE SHOOTING
69
70 Status
mNormal
mThe projector lamp has exceeded 2000 hours of operation and
should be replaced.
mEither the lamp cover or filter panel is not fastened properly. Check
each and reattach them if necessary.
mThe projector is overheated.
¥ If there is insufficient ventilation around the projector or if the
room where youre presenting is particularly warm, move the
projector to a cooler location.
¥ Check the filter and clean it if necessary.
¥ If the problem persists, contact your NEC dealer for service. Condition
OFF
On Continually
Blinking very rapidly
(On and off in a cycle of 1 sec.)
Blinking rapidly
(On and off in a cycle of 4 sec.)
Blinking Slowly
(On and off in a cycle of 8 sec.)
Blinking very slowly
(On and off in a cycle of 12 sec.)mThe cooling fan has stopped. Contact your NEC dealer for service.
mThe lamp is not turned on.
¥ The projector was turned off and back on too quickly. Turn
off the projector, wait one minute, then turn the projector
back on. Or the lamp is burnt. 
						

							Common Problems & Solutions
Problem
Does not turn on
No picture
Image isnÕt square to the screen
Picture is blurred
Image is scrolling vertically,
horizontally or both
Remote control does not work
Status indicator is lit or
blinking
Cross color in RGB modeCheck These Items
¥ Check that the cord is plugged in and that the power switch on the back panel is on.
¥ Ensure that the air filter and filter panel are installed correctly. (See page 64.)
¥ Check the status light to see if the projector has overheated or the lamp usage exceeds 2100 hours.
¥ Use the menu icons to select your source (Video, S-Video, RGB1 or 2). (See pages 51 and 52.)
¥ Ensure your cables are connected properly.
¥ Use icons to adjust the brightness and contrast.
¥ Remove the lens cap.
¥ Reset the settings or adjustments to factory preset levels using the RESET icon on the Settings Menu.
¥ Reposition the projector to improve its angle to the screen.
¥ Adjust the focus. (See page 20 or 28.)
¥ Reposition the projector to improve its angle to the screen.
¥ Ensure that the distance between the projector and screen is within the adjustment range of the lens.
¥ Use icons to select the source you want to input.
¥ Make sure the recalled Custom Memory supports the current input signal.
¥ Install new batteries. (See page 64.)
¥ Make sure there are no obstacles between you and the projector.
¥ Stand within 23 feet (7m) of the projector.
See the Status Light message chart on pages 69 and 70.
If ÒAuto PictureÓ is off, turn it on. If ÒAuto PictureÓ is on, turn it off and balance the image with the Picture Adjustment icon and
Fine Picture Adjustment icon.
To Contact Your NEC Service Representative, Call 1-800-836-0655
TROUBLE SHOOTING
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This section explains conditions that you will encounter when operating your MT1020
while displaying an SXGA (128021024) image.
When a menu or message is displayed while an SXGA image is projected, several lines
of information will be lost.
When the LAMP USAGE 2000 HOURS message appears, several lines of information
will be lost.
The LAMP USAGE 2000 HOURS message will not appear when the freeze button is
activated.
SXGA images inherently display a 5 to 4 ratio, resulting in an image that appears to be
smaller and more square than the 4 to 3 format commonly displayed. 
						

							This section provides technical information about the MultiSync MT1020/MT820 LCD Projectors performance.
Optical
LCD Panel
1.3, p-Si TFT active-matrix, 10242768 dots (MT1020) / 8002600 dots (MT820)
Lens Power zoom, power focus
F 2.5 f =52 Ð 68 mm
Lamp Metal halide lamp 250 W
(Guaranteed life span: 2,000 hours or
6 months from date of purchase,
whichever comes first.)
Image Size 20-300 inches diagonal
Projection Distance 3.28 Ð 40.03 ft (1.0 Ð 12.2 m)
Light Output 700 ANSI lumens (MT820), 600 ANSI lumens (MT1020)
Contrast Ratio Greater than 200 : 1
Color Temperature 8,500 ± 1500 Kelvin
SPECIFICATIONS 6
Electrical
Inputs Video (NTSC / PAL / SECAM / NTSC4.43)
RGB (MT1020; H : 15 Ð 85 kHz, V : 50 Ð 85 Hz)
RGB (MT820; H : 15 Ð 60 kHz, V : 50 Ð 85 Hz)
Video Bandwidth 80 MHz (MT1020) / 60MHz (MT820)
Color Reproduction Full color, 16.7 million colors simultaneously.
Horizontal Resolution 550 TV lines: NTSC, 350TV lines: PAL / SECAM / NTSC 4.43
MT1020: RGB 1024 dots horizontal, 768 dots vertical
MT820: RGB 800 dots horizontal, 600 dots vertical
Power Requirement 100 Ð 120 / 220 Ð 240 VAC, 50 / 60 Hz
Input Current 5.8 A
Mechanical
Dimensions 15.4  (W)25.8  (H)212.7 (D)
39.0 cm (W)214.5 cm (H)232.1 cm (D)
Net Weight 15.6 lbs / 7.1 kg
Operational Temperatures LCD projector: 32° Ð 104°F(0° to 40°C), 20 Ð 80% humidity
Remote control: 32° Ð 140°F (0° to 60°C)
Remote mouse receiver: 32° Ð 140°F (0° to 60°C)
Regulations UL Approved (UL 1950, CSA 950)
Meets DOC Canada requirements
Meets FCC Class A requirements
SPECIFICATIONS
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							Cabinet Dimensions
Unit : inch (mm)
SPECIFICATIONS
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76
11.3
(286.5)
15.4
(390)
11.3
(285.0)
12.7
(321.0)
FOCUS
ZOOM
ADJUST
ENTER
SELECT
MENU
POWER
ON/OFFSTATUS PUSH
3.1
(77.2)
5.8
(145.0)
3.1
(78.2) 
						

							D-Sub Pin Assignments
      PC 15-Pin mini D-Sub    Macintosh 15-Pin D-Sub
Pin No. Signal to be connected Pin No Signal to be connected
1 Red 1 Red GND
2 Green 2 Red
3 Blue 3 Horizontal Sync
4 GND 4 GND
5 GND 5 Green
6 Red GND 6 Green GND
7 Green GND 7 No Connection
8 Blue GND 8 No Connection
9 No Connection 9 Blue
10 Digital GND 10 No Connection
11 GND 11 GND
12 No Connection 12 Vertical Sync
13 Horizontal Sync 13 Blue GND
14 Vertical Sync 14 No Connection
15 No Connection 15 No Connection
1 2
3 4
5
11 12 13
14 15
6
7 8 9
10
1 2
3 4
5
11 12 13
14 15
6
7 8
9
10
  PC 15-Pin mini D-Sub
Macintosh 15-Pin D-Sub
SPECIFICATIONS
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78