NEC Projector Np4001 User Manual

2. Installation and Connections 
19 
p Installing or Removing the Optional Lens 
  CAUTION: 
•   Do not shake or place excessive pressure on the projector or the lens compo-
nents as the projector and lens com ponents contain precision parts. 
•   When shipping the projector with the optional lens, remove the optional lens 
before shipping the projector. The lens and the lens shift mechanism may en-
counter damage caused by improper handling during transportation. 
•   Before removing or installing the...

2. Installation and Connections 
20
2.  Push the LENS 
RELEASE button all the 
way in and rotate the lens 
counterclockwise. 
The existing lens will be 
disengaged. 
Note: 
If the lens cannot be 
removed even by using 
the LENS RELEASE 
button, the anti-theft 
screw for lens may be 
in use to secure the 
lens. If that is the case, 
remove the anti-theft 
screw first. 
 
3.  Pull out the existing lens 
slowly. 
 
 
Note: 
When Installing the Lens into the Projector: 
Be sure to remove the lens  cap from...

2. Installation and Connections 
21 
Installing the New Lens 
1.  Insert the lens with the 
arrow mark on top. 
 
2.  Rotate the lens clock-
wise until you feel it 
click into place. 
 
Installing the New Lens Using the anti-theft screw 
 Using the anti-theft 
screw to prevent theft of 
the lens. 
Tighten the supplied 
anti-theft screw on the 
front bottom. 
  
 
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2. Installation and Connections 
22
q Throw Distance and Screen Size 
Example of NP08ZL: 
The further your projector is from the screen or  wall, the larger the image. The minimum size 
the image can be is approximately 40 inches (1  m) measured diagonally when the projector is 
roughly 65 inches (1.7 m) from the wall or sc reen. The largest the image can be is 500 inches 
(12.7 m) when the projector is about 843  inches (21.4 m) from the wall or screen. 
Note: 
The following image represents the...

2. Installation and Connections 
23 
NP4000 Throw Distance and Screen Size Values 
Screen Size NP06FL NP07ZL NP08ZL 
Diagonal Width Height (B) Distance (A) 
[inches] [m] [inches] [m] [inches] [m] [inches][m][inches] [m] [inches] [m] 
40 1.02  32 0.81 24 0.61      41.7 - 56.8 1 .06 - 1.44 55.8 -  74.4  1.42 -  1.89 
50 1.27  40 1.02 30 0.76  30.7 0.78 52.6 - 71.5 1.34 - 1.82 70.4 -  93.7  1.79 -  2.38 
60 1.52  48 1.22 36 0.91  37.1 0.94 63.5 - 86.1 1.61 - 2.19 85.0 - 112.9  2.16 -  2.87 
67 1.70  54...

2. Installation and Connections 
24
NP4001 Throw Distance and Screen Size Values 
Screen Size NP06FL NP07ZL NP08ZL 
Diagonal Width Height (B) Distance (A) 
[inches] [m] [inches] [m] [inches] [m] [inches][m][inches] [m] [inches] [m] 
40 1.02 34.3 0.87 20.5 0.52      45.4 - 61.8 1.15 - 1.57 60.9  -  81.0  1.55 -  2.06 
50 1.27 42.9 1.09 25.6 0.65 33.5 0.85 57.2 - 77.7 1.45 - 1.97 76.7 - 101.9  1.95 -  2.59 
60 1.52 51.6 1.31 30.7 0.78  40.5 1.03 69.0 - 93.6 1.75 - 2.38 92.5 - 122.8  2.35 -  3.12 
67 1.70...

2. Installation and Connections 
25 
For screen sizes between 40 inches and 500 inch es not indicated in the tables on pages 23 
and 
24 , use the formulas below for the throw distance: 
THROW DISTANCE FOR NP4000 
LENS [INCHES] [METERS] 
NP06FL  B × 0.808 - 1.654  B × 0.808 - 0.042 
NP07ZL  B × 1.361 - 1.85  
through B × 1.831 - 1.811  B × 1.361 - 0.047  
through B × 1.831 - 0.046 
NP08ZL 
B × 1.823 - 2.52  
through B × 2.403 - 2.441  B × 1.823 - 0.064  
through B × 2.403 - 0.062 
NP09ZL 
B × 2.298 -...

2. Installation and Connections 
26
CAUTION 
 Ceiling installation must be done by a qu
alified professional. Contact your 
NEC dealer for more information.  
It is not recommended you install the projector yourself. 
Only use the projector on a solid, level surface. Serious injury and dam-
age can occur if the projector falls to the ground. 
Do not use the projector in an environment where extreme temperature 
occurs. The projector must be used at  temperatures between 41 degrees 
Fahrenheit (5 degrees...

2. Installation and Connections 
27 
r Replacing Color Wheel 
The NP4001/NP4000 projector comes with a f our-segment color wheel installed. An addi-
tional  
six-segment color wheel comes included. To re place the color wheel (located under the lamp 
cover adjacent to lamp 1) re fer to the following guide. 
Note: 
• Before replacing the color wheel, be sure  to turn off the projector, wait until the 
cooling fans stop, and turn off the main power switch.  
• Wait until the lamp house and the color wheel...

2. Installation and Connections 
28
3.  Remove the screws 
from the color wheel 
cover. Lift cover in the 
direction shown and 
place on a clean, dust 
free surface. 
 
4.  Unscrew the retaining 
screws on the  
four-segment color 
wheel. 
Note:  
Improper (loose) 
installation of the color 
wheel prevents an 
image from being 
displayed. 
 
5.   Lift the unit in the direc-
tion shown.