Hitachi CP-RX78 User Manual - Page 77

On a horizontal surface, Suspended from the ceiling

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Arrangement Refer to the illustrations and tables below to determine screen size and projection distance. The values shown in the table are calculated for a full size screen: 1024 x 768 a Screen size (diagonal) b Projection distance (±10%) c1 , c2 Screen height (±10%) On a horizontal surface Suspended from the ceiling ‡.HHSDVSDFHRIFPRUPRUHEHWZHHQWKHVLGHVRI the projector and other objects such as walls. Do not place or attach anything that would block the lens or vent holes. ‡)RUWKHFDVHRILQVWDOODWLRQLQDVSHFLDOVWDWHVXFK DVFHLOLQJPRXQWWKHVSHFL¿HGPRXQWLQJDFFHVVRULHV ( 16 DQGVHUYLFHPD\EHUHTXLUHG%HIRUHLQVWDOOLQJ the projector, consult your dealer about your installation. a Screen size (diagonal) type (inch) m 30 0.8 40 1.0 50 1.3 60 1.5 70 1.8 80 2.0 90 2.3 100 2.5 120 3.0 150 3.8 200 5.1 250 6.4 300 7.6 4 : 3 screen b Projection distance min. max. c1 Screen height m inch m inch cm inch 0.8 33 1.0 40 38 15 1.1 45 1.4 54 51 20 1.4 56 1.7 68 64 25 1.7 68 2.1 82 76 30 2.0 80 2.4 96 89 35 2.3 91 2.8 110 102 40 2.6 103 3.1 123 114 45 2.9 114 3.5 137 127 50 3.5 137 4.2 165 152 60 4.4 172 5.2 207 191 75 5.8 230 7.0 276 254 100 7.3 287 8.8 345 318 125 8.8 345 10.5 414 381 150 c2 Screen height cm inch 83 10 4 13 5 15 6 18 7 20 8 23 9 25 10 30 12 38 15 51 20 64 25 76 30 16 : 9 screen b Projection distance min. max. c1 Screen height m inch m inch cm inch 0.9 36 1.1 44 35 14 1.2 49 1.5 59 47 19 1.6 62 1.9 74 59 23 1.9 74 2.3 89 71 28 2.2 87 2.7 104 82 32 2.5 99 3.0 119 94 37 2.8 112 3.4 135 106 42 3.2 124 3.8 150 118 46 3.8 150 4.6 180 141 56 4.8 187 5.7 225 176 69 6.4 250 7.6 301 235 93 8.0 313 9.6 376 294 116 9.5 376 11.5 452 353 139 c2 Screen height cm inch 21 31 31 42 52 62 62 73 83 10 4 14 5 17 7 21 8 WARNING Ź,QVWDOOWKHSURMHFWRULQDVWDEOHKRUL]RQWDOSRVLWLRQ Ź3ODFHWKHSURMHFWRULQDFRROSODFHDQGHQVXUHWKDWWKHUHLVVXI¿FLHQWYHQWLODWLRQ Ź'RQRWSODFHWKHSURMHFWRUDQ\SODFHZKHUHLWPD\JHWZHW Ź8VHRQO\WKHPRXQWLQJDFFHVVRULHVWKHPDQXIDFWXUHUVSHFL¿HGDQGOHDYHLQVWDOOLQJ and removing the projector with the mounting accessories to the service personnel. Ź5HDGDQGNHHSWKHXVHU VPDQXDORIWKHPRXQWLQJDFFHVVRULHVXVHG CAUTION Ź$YRLGSODFLQJWKHSURMHFWRULQVPRN\KXPLGRUGXVW\SODFH ŹPosition the projector to prevent light from directly hitting the projector's remote sensor. 6

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6
On a horizontal surface
Suspended from the ceiling
the projector and other objects such as walls. Do not
place or attach anything that would block the lens or
vent holes.
(
16
the projector, consult your dealer about your installation.
WARNING
and removing the projector with the mounting accessories to the service personnel.
CAUTION
Position the projector to prevent light from directly hitting the projector’s remote sensor.
Screen size
(diagonal)
4 : 3 screen
16 : 9 screen
Projection distance
Screen
height
Screen
height
Projection distance
Screen
height
Screen
height
min.
max.
min.
max.
type
(inch)
m
m
inch
m
inch
cm
inch
cm
inch
m
inch
m
inch
cm
inch
cm
inch
30
0.8
0.8
33
1.0
40
38
15
8
3
0.9
36
1.1
44
35
14
2
1
40
1.0
1.1
45
1.4
54
51
20
10
4
1.2
49
1.5
59
47
19
3
1
50
1.3
1.4
56
1.7
68
64
25
13
5
1.6
62
1.9
74
59
23
3
1
60
1.5
1.7
68
2.1
82
76
30
15
6
1.9
74
2.3
89
71
28
4
2
70
1.8
2.0
80
2.4
96
89
35
18
7
2.2
87
2.7
104
82
32
5
2
80
2.0
2.3
91
2.8
110
102
40
20
8
2.5
99
3.0
119
94
37
6
2
90
2.3
2.6
103
3.1
123
114
45
23
9
2.8
112
3.4
135
106
42
6
2
100
2.5
2.9
114
3.5
137
127
50
25
10
3.2
124
3.8
150
118
46
7
3
120
3.0
3.5
137
4.2
165
152
60
30
12
3.8
150
4.6
180
141
56
8
3
150
3.8
4.4
172
5.2
207
191
75
38
15
4.8
187
5.7
225
176
69
10
4
200
5.1
5.8
230
7.0
276
254
100
51
20
6.4
250
7.6
301
235
93
14
5
250
6.4
7.3
287
8.8
345
318
125
64
25
8.0
313
9.6
376
294
116
17
7
300
7.6
8.8
345
10.5
414
381
150
76
30
9.5
376
11.5
452
353
139
21
8
b
a
b
c1
c1
c2
c2
Arrangement
Refer to the illustrations and tables below to determine screen size and projection distance.
The values shown in the table are calculated for a full size screen: 1024 x 768
a
Screen size (diagonal)
b
Projection distance (±10%)
c1
,
c2
Screen height (±10%)