NEC Display Solutions of America, Inc.
P350X/P420X Installation Guide
Ceiling Mounted and Desktop
Rev 1.0
www.necdisplay.com
P350X/P420X
Page 2 of 6
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Lens Offset From
Mount Pipe
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom
3.05"
C
Throw Distance
Screen Top
D
B
Lens Ctr
Screen Ctr
D
6.
2
2
Ceiling Mounted
Desktop
Diagonal Width(W) Height (H)
inches
inches
inches
inches
30
24
18
6
31
-
53
11.3 -
6.7
60
48
36
12
64
-
107
11.0 -
6.6
67
53.6
40.2
14
72
-
120
10.9 -
6.6
72
57.6
43.2
15
77
-
129
10.9 -
6.6
84
67.2
50.4
17
90
-
151
10.9 -
6.6
90
72
54
19
97
-
162
10.9 -
6.6
100
80
60
21
108
-
180
10.9 -
6.6
120
96
72
25
130
-
216
10.8 -
6.5
150
120
90
31
162
-
270
10.8 -
6.5
180
144
108
37
195
-
325
10.8 -
6.5
210
168
126
43
228
-
379
10.8 -
6.5
240
192
144
50
261
-
434
10.8 -
6.5
270
216
162
56
294
-
488
10.7 -
6.5
300
240
180
62
327
-
543
10.7 -
6.5
degrees
Screen Size (4:3)
-6
inches
-3
B
C
w ide - tele
inches
D
α
w ide - tele
-6
-7
-8
-8
-9
-11
-14
-17
-20
-22
-25
-28
Distance Chart for popular 4:3 screens
Note:
For screen sizes not indicated on the projection
tables, use the formulas on page 1.
