NEC Lt81 Projector Users Manual

Switching Slides
To switch slides, press SLIDE + or SLIDE Ð button. This will
cancel the Auto Play mode. To set the Auto Play mode, press the Menu
button to select ÒStartÓ from the Source menu and press the Enter
button on the cabinet or the Left Click button on the remote control.
This is valid only when the Auto Play mode is selected. See more
information about ÒAuto Play modeÓ for the Help file included with the
Viewer board.
* SLIDEÐ returns to the previous slide.
SLIDE+ advances to the next slide....

This section describes the simple maintenance procedures you should follow
to replace the lamp and replace the batteries in the remote control.
Replacing The Lamp
After your lamp has been operating for 1000 hours or longer, the Òsta-
tusÓ light in the cabinet will turn red. Even though the lamp may still be
working, replace it at 1000 hours to maintain optimal projector perform-
ance.
CAUTION
¥ DO NOT TOUCH THE LAMP immediately after it has been used. It will
be extremely hot. Allow at least one hour for...

83
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.
MAINTENANCE 84
Operating Range
Range of 360û and a distance of 23 feet (7 m) from the remote sensor.
30˚
30˚
Operation distance
of 23 feet (7m) 

Etape 3
Etape 4
Etape 585
Cette section dŽcrit les procŽdures simples dÕentretien que vous aurez ˆ
suivre pour remplacer la lampe et remplacer les piles de la tŽlŽcommande.
Remplacement de la lampe
Lorsque la lampe a ŽtŽ utilisŽe pendant 1000 heures ou plus, le voyant ÒStatusÓ (Žtat) du

1000 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...

87
MAINTENANCE 88
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.
PortŽe de fonctionnement

30˚
30˚
Operation distance of 7m 

This section helps you resolve problems you may encounter while setting up or using your MultiSync LT81/LT100 Projector.
Status Light Messages
TROUBLESHOOTING 589
Status
mNormal
mThe projector lamp has exceeded 1000 hours of operation and should be replaced.
mThe lamp housing is not correctly installed. Install it correctly.
¥ The temperature protector has been triggered.  If the room temperature is high, move the projector
to a cooler location.  If the temperature inside the projector is high, check the...

Common Problems & Solutions
Problem
Does not turn on
No picture
Image isnÕt square
to the screen
Picture is blurredCheck These Items
¥ Check that the power cable is plugged in and that the power switch on the back panel is on.
¥ Ensure that the lamp cover and lamp housing are installed correctly. (See page 81.)
¥ Check the status light to see if the projector has overheated or the lamp usage exceeds 1100
hours.
¥
Use the menu icons to select your source (Video, S-Video, RGB or PC Card). (See pages 61 and...

This section provides technical information about the MultiSync LT81/LT100 Projectors performance.
Optical
DMDTMSingle Chip Digital Micromirror Device(DMDTM), 8002600 dots (LT81) / 10242768 dots (LT100)
Lens Manual zoom, manual focus
F 2.44 f =26-30 mm
Lamp Metal halide lamp 280 W
Image Size 610-7620 mm (24-300 inches) diagonal
Projection Distance 1.2 Ð 12.3m
Electrical
Inputs Video (NTSC / PAL / SECAM / NTSC 4.43)
RGB LT81: (H : 15 Ð 60 kHz, V : 50 Ð 85 Hz)
 LT100: (H : 15 Ð 85 kHz, V : 50 Ð 85 Hz)...

Cabinet Dimensions (LT81)
95
Unit : inch (mm)
SPECIFICATIONS 96
12.2
(310)
9.3
(235)
3.4
(85.6)
0.6
(15)
0.9
(23)
MAX3.4
(85.6)
Lens Center0.4
(11)5.1
(129.6)
3.9
(98)0.7
(17)
3.4
(85.8)
Lens Center 

Cabinet Dimensions (LT100)
97
Unit : inch (mm)
SPECIFICATIONS 98
12.6
(320)
5.2
(133)
3.8
(97) 0.2
(5)
MAX
0.79
(20)5.6
(142)
4.5
(114)0.53
(13.5)
3.3
(83.4)
9.8
(250)
Lens Center Lens Center