NEC Projector NP3150/NP2150/NP1150 User Manual

11
7. Maintenance
2. Gently peel off the filter (sponge) and replace it with the new one.
  The filter is attached self-adhesive tape. Peel off a release paper before use.
3. Reinstall the new filter cover.
•  Slip the filter cover back until it snaps into place.
4. Connect the supplied power cable, turn on the Main Power switch and turn on the projector.
5.  Finally, select the menu → [RESET] → [CLEAR FILTER HOURS] to reset the filter usage hours.
  (→ page 115 for resetting the filter usage...

118
 Replacing the Lamp
When  the  lamp  reaches  the  end  of  its  life,  the  LAMP  indicator  in  the  cabinet  will  blink  red.  Even  though  the  lamp 
may  still  be  working,  replace  the  lamp  to  maintain  the  optimal  projector  performance.  After  replacing  the  lamp,  be 
sure to clear the lamp hour meter. (→ page 115)
CAUTION
• DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Turn the projector off, 
wait 30 seconds, turn off the main power switch...

119
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 this from...

10
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...

11
8. Using Optional Lenses
Five  optional  lenses  are  available  for  the  NP3150/NP2150/NP1150.  See  the  information  described  on  this  page  to 
buy the appropriate lens for your screen size and throw distance. See page 123 for installing the lens.
 Table of Throw Distances and Screen Sizes for Optional Lenses
STANDARD (H X 1.5) - (H X 2.0) 
NP01FL (H X 0.8) 
NP03ZL (H X 1.9) - (H X 3.1) 
NP04ZL (H X 3.0) - (H X 4.8) 
NP05ZL (H X 4.7) - (H X 7.2)
NP02ZL (H X 1.2) - (H X 1.5)  
 
Example:...

1
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.
Desktop front projection
Ceiling front projection
Vertical shift
Vertical shift
Max. 0.5V
Max. 0.5V
1V
0.5V
0.1H0.1H1H
Width of projected imageNomal...

1
8. Using Optional Lenses
SELECT
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 for lens may be used to secure the lens. 
If such is the case, remove the anti-theft screw first. (→ page 124)
lens...

14
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.
SELECT
LEFTRIGHT
DOWNUP2.  Rotate the lens clockwise.
Rotate the lens until you feel it click into place.
LEFTRIGHTYellowProtrusion 

15
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...

1
9. Appendix
Common Problems & Solutions (→ “Power/Status/Lamp Indicator” on page 125)
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.21,.22)•.Ensure.that.the.lamp.cover.is.installed.correctly..(→.page.120)•.Check. to.see. if.the. projector. has.overheated.. If.there. is.insufficient. ventilation.around.the.projector....