NEC Lt180 Portable Projector Users Manual

E-44
6. MAINTENANCE
6. MAINTENANCE
This section describes the simple maintenance procedures you should follow to replace the lamp and clean the
projector cabinet.
Replacing the LampAfter your lamp has been operating for 2000 hours (up to 3000 hours in Eco mode) or longer, the LAMP indicator
in the cabinet will blink red and the message The lamp has reached the end of its usable life. Please replace the
lamp. will appear. Even though the lamp may still be working, replace it at 2000 (up to 3000 hours in...

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6. MAINTENANCE
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2. Loosen the two screws securing the lamp housing until the screwdriver goes into a freewheeling condition.
The two screws are not removable.
Remove the lamp housing by holding it.
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock....

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NOTE:
• Align the lamp housing with the guide rail. Make sure the lamp housing plug goes to the socket correctly.• If both screws are not tightened securely, an image may not be displayed correctly. In this case, apply firm pressure to the portion of asterisk (

) in the above drawing to seat the lamp housing into thecase.
4. Reattach the lamp cover.
Tighten...

E-47
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6. MAINTENANCE...

E-48
7. TROUBLESHOOTING
This section helps you resolve problems you may encounter while setting up or using the projector.
Power Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightGreen
Orange
Green
Orange0.5 sec On,
0.5 sec Off
2.5 sec On,
0.5 sec Off
0.5 sec On,
0.5 sec OffThe main power is off.
The projector is getting ready
to turn on.
Off Timer is enabled.
The projector is cooling down.
The projector is turned on.
The projector is in Standby.–
Wait for a moment.
–...

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Does not turn on
Lamp does not turn on;
POWER and STATUS
LEDs are blinking green
at the same time
Will turn off
No picture
Image isn’t square to the
screen
Color tone or hue is un-
usual•Check that the power cable is plugged in and that the power button on the
projector cabinet or the remote control is on. See pages E-19 and E-20.
•Ensure that the lamp cover or lamp housing is installed correctly. See page
E-46.
•Check to see if the projector has overheated or the lamp has reached the end
of its...

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Picture is blurred
Image is scrolling verti-
cally, horizontally or
both
Remote control does
not work
Indicator is lit or blink-
ing
Cross color in RGB
mode•Remove the lens cap.
•Adjust the focus. See page E-25.
•Reposition the projector to improve its angle to the screen. See pages E-22
and E-23.
•Ensure that the distance between the projector and screen is within the ad-
justment range of the lens. See pages E-11 and E-12.
•Condensation may form on the lens if the projector is cold, brought into...

E-51
7. TROUBLESHOOTING
If there is no picture, or the picture is not displayed correctly.
•Power on process for the projector and the PC.
Be sure to connect the RGB cable between the projector and the computer before turning on the computer.
There are some notebook PCs, which do not output signal unless there is a projector or monitor connected
first.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information. If it reads “0kHz”, this means there is no...

E-52
8. SPECIFICATIONS
8. SPECIFICATIONS
This section provides technical information about the LT180 Projectors performance.
Model Number LT180
Optical
DMD Single Chip Digital Micromirror Device (DMD)
Resolution 1024
768 pixels* up to 1080i with scaling technology
Lens Manual zoom and focus
F2.0 - 2.48  f=19.7 mm - 23.0 mm
Lamp 210W DC (168W Eco mode)
Image Size 30 - 200 diagonal
Projection Distance 31.4 - 220.4 (wide) / 37.7 - 262.2 (tele)
0.80 m - 5.60 m (wide) / 0.96 m - 6.66 m (tele)
Projection Angle...

E-53
8. SPECIFICATIONS
Mechanical
Installation Orientation Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions 7.4 (W)
4.4 (H)
13.3 (D)
187mm (W)
113mm (H)
337mm (D)
(not including protrusions)
Net Weight 6.4 lbs / 2.9 kg
Environmental Considerations
Operational Temperatures: 41°F to 95°F (5°C to 35°C), 20% to 80% humidity
(non-condensing)
Storage Temperatures: 14°F to 122°F (-10°C to 50°C), 20% to 80% humidity
(non-condensing)
Regulations UL/C-UL Approved (UL 60950, CSA 60950)
Meets DOC...