5
INSTALLATION SET-UP INSTRUCTION
Projection Distance and Screen size for Ceiling Mount
• Install in such a way that the projector and screen are positioned in the proper direction and at the proper angle. If not, the projector's
performance will be affected and its reliability will decrease. Be sure to position the projector properly.
The manufacture will not be held responsible for any problems occurring when the projector is not installed in the proper position.
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
When using a screen 150"
(3810mm) or larger (in the
diagonal direction)
E
B
Screen center
Ceiling Mounting
12
°
Line of sight
12
°
12
°
A
Screen center
B
C
Ceiling Mounting
7.92"
(201mm)
5.12"
(130mm)
Ceiling Mount System
NOTE:
• For screen 150 inches (3810mm) or larger (in the diagonal direction), set so that the distance between the surface of installa-
tion of the mounting A and the ceiling is E.
• Set the projection distance based on the width of the screen.
• If the figures on the table do not match the figures in the formulae, use the figures on the table.
• For screen sizes of 60 to 300 inches not indicated on the table, use the following proportional formulae.
Units=mm W"=Screen H-Width
A = [(5/18
2
W"
1
12.5)
2
126.64]
`
1785
B = (0.208
2
A)
`
255
C = 0.979
2
A
E = (1/2
2
Screen Height)
1
B
Units=inches W"=Screen H-Width
A = [(5/18
2
W"
1
12.5)
2
4.99]
`
70.28
B = (0.208
2
A)
`
10.04
C = 0.979
2
A
E = (1/2
2
Screen Height)
1
B
• The margin of error for projection distance (A) is
5
3%
A
B
C
E
48"
(60")
Screen size H-Width
(4:3 Diagonal)
56"
(70")
64"
(80")
72"
(90")
80"
(100")
96"
(120")
118.75
3016
34.73
882
116.16
2951
–
–
85.51
2172
27.82
707
83.65
2125
–
–
96.59
2453
30.13
765
94.48
2400
–
–
107.68
2735
32.43
824
105.33
2676
–
–
140.91
3579
39.34
1000
137.86
3502
–
–
74.41
1890
25.51
648
72.79
1849
–
–
inch
mm
inch
mm
inch
mm
inch
mm
120"
(150")
144"
(180")
160"
(200")
192"
(240")
216"
(270")
240"
(300")
174.15
4423
46.25
1175
170.35
4327
–
–
207.40
5268
53.16
1351
202.87
5153
0.84
22
229.55
5830
57.77
1468
224.53
5704
2.24
57
273.86
6956
66.98
1702
267.88
6804
5.03
128
307.10
7800
73.89
1877
300.40
7630
7.11
181
340.36
8645
80.81
2053
332.92
8457
9.2
234