NEC Np1250 Lcd Projector Users Manual

3
7. Maintenance
2. Loosen the two screws securing the lamp housing until the phillips 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 electric\
al shock. Do not attempt to circumvent this interlock.
3. Insert a new lamp housing until the lamp housing is plugged into the socket. 
CAUTION
Do not use a lamp other than the NEC replacement lamp NP06LP.
Order...

38
7. Maintenance
5. Connect the supplied power cable, turn on the Main Power switch and turn on the projector.
6.  Finally, select the menu → [RESET] → [CLEAR LAMP HOURS] to reset the lamp life remaining and lamp 
usage hours.
NOTE: When you continue to use the projector for another 100 hours after the lamp has reached the end of its life, the projector 
cannot turn on and the menu is not displayed.
If this happens, press the HELP button on the remote control for 10 seco\
nds to reset the lamp...

39
8. Using Optional Lenses
Five  optional  lenses  are  available  for  the  NP3250/NP2250/NP1250/NP3250W.  See  the  information  described  on 
this page to buy the appropriate lens for your screen size and throw distance. See page 142 for installing the lens.
 Table of Throw Distances and Screen Sizes for Optional Lenses 
[NP3250/NP2250/NP1250]
Screen  Size STANDARD 1.5 − 2.0 (m) (inches) 
NP02ZL 1.2 − 1.5 (m) (inches) 
NP03ZL 1.9 − 3.1 (m) (inches) 
NP04ZL 3.0 − 4.8 (m) (inches) 
NP05ZL 4.7 −...

40
[NP3250W]
Screen SizeSTANDARD1.5 − 2.0(m)(inches)
NP02ZL1.2 − 1.5(m)(inches)
NP03ZL1.9 − 3.1(m)(inches)
NP04ZL3.0 − 4.8(m)(inches)
NP05ZL4.7 − 7.2(m)(inches)
NP01FL0.8(m)(inches)30"40"60"67"72"80"84"90"100"120"150"180"200"210"240"261"270"300"350"400"450"500"
 0.94 – 1.27  1.27 – 1.71  1.93 – 2.58  2.16 – 2.89  2.33 – 3.11  2.59 – 3.46  2.72 – 3.64  2.92 – 3.9  3.25 – 4.34  3.91 – 5.22  4.90 – 6.54  5.89 –...

4
8. Using Optional Lenses
 Lens Shift Adjustable Range
The top right diagram shows the location of the image position in the lens. The lens can be shifted within the shad-
ed area as shown using the normal projection position as a starting point.
The projector has a lens shift feature that allows you to move the image vertically or horizontally.
NOTE: Lens shift is not available with the NP01FL optional lens. The NP0\
1FL should be used only for “zero degree” applications. 
Desktop front...

4
8. Using Optional Lenses
PC CARDLAMPSTATUSPOWERSOURCEAUTO ADJUST3D REFORMON/STAND BY
SELECT
PC CARDLAMPSTATUSPOWERSOURCEAUTO ADJUST3D REFORMON/STAND BY
LEFTRIGHT
DOWNUP
2. Pull out the existing lens slowly.
Remove the existing lens from the projector.
1.  Rotate  the  lens  counterclockwise  while  strongly  pushing  the 
LENS RELEASE button all the way in.
The existing lens will be disengaged.
NOTE: If the lens cannot be removed even by using the LENS RELEASE but-
ton, the anti-theft screw...

43
8. Using Optional Lenses
Using the anti-theft screw to prevent theft of the lens 
Tighten the supplied anti-theft screw on the front bottom.
Hole of anti-theft screw for lens unit
Install the new lens
1. Insert the lens with the yellow protrusion on top.
PC CARDLAMPSTATUSPOWERSOURCEAUTO ADJUST3D REFORMON/STAND BY
SELECT
PC CARDLAMPSTATUSPOWERSOURCEAUTO ADJUST3D REFORMON/STAND BY
LEFTRIGHT
DOWNUP2.  Rotate the lens clockwise.
Rotate the lens until you feel it click into place....

44
9. Appendix
 Troubleshooting
This section helps you resolve problems you may encounter while setting up or using the projector.
Indicator Messages
Power Indicator
Lamp Indicator
Indicator ConditionProjector ConditionNote
Off
Blinking.light
Steady.light
Normal
Lamp.has.reached. its.end. of.life.. Lamp.
replacement.message.will.be.displayed.
Lamp. has.been. used.beyond. its.limit..
The. projector. will.not.turn. on.until. the.
lamp.is.replaced.
Lamp.is.in.Eco.mode
Red
Red
Green
Indicator...

45
9. Appendix
Common Problems & Solutions (→ “Power/Status/Lamp Indicator” on page 144)
ProblemCheck These Items
Does.not.turn.on•.Check. that.the.power. cable.is.plugged. in.and. that. the.power. button. on.the. projector. cabinet.or.the. remote.control.is.on..(→.page.22,.23)•.Ensure.that.the.lamp.cover.is.installed.correctly..(→.page.138)•.Check. to.see. if.the. projector. has.overheated.. If.there. is.insufficient. ventilation.around.the.projector....

4
9. Appendix
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 projector and notebook PC while the projector is in standby mode and before turning on 
the power to the notebook PC.
In most cases the output signal from the notebook PC is not turned on unless connected to the projector before 
being powered up.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu...