Screen size and projection distance, When the aspect ratio of the screen is 16:9, When the aspect ratio of the screen is 4:3 – Yamaha DPX-830 User Manual
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◆ Screen size and projection distance
Refer to the following diagram to determine the screen size.
When the aspect ratio of the screen is 16:9
• The above figures are approximate and may be slightly different from the actual
measurements.
When the aspect ratio of the screen is 4:3
When the aspect ratio of the screen is 4:3, the positional relation between the projected image and the screen is as shown below. Refer to the
following table for installation.
When the aspect ratio of the image is 4:3
• The above figures are approximate and may be slightly different from the actual
measurements.
When the aspect ratio of the image is 16:9
• The above figures are approximate and may be slightly different from the actual measurements.
A
B
Hd
Screen size
Width of the projected image
Height
of th
e
proj
ect
ed im
age
Center of the lens
Projected distance (L)
Screen size 16:9
Projected distance (L)
Hd
Diagonal
Height A
Width B
Min.
Max.
inch
cm
inch
cm
inch
cm
inch
m
inch
m
inch
cm
40
102
20
50
35
89
56
1.4
68
1.7
6.6
17
60
152
29
75
52
133
85
2.2
103
2.6
9.9
25
80
203
39
100
70
177
114
2.9
139
3.5
13.2
33
100
254
49
125
87
221
143
3.6
174
4.4
16.5
42
150
381
74
187
131
332
216
5.5
262
6.6
24.7
63
200
508
98
249
174
443
289
7.3
349
8.9
32.9
84
250
635
123
311
218
553
362
9.2
–
–
41.2
105
275
699
135
342
240
609
398
10.1
–
–
45.3
115
A
B
Hd
Center of the lens
Projected distance (L)
He
ig
ht o
f
the
pr
oj
ec
te
d i
m
ag
e
Width of the projected image
Screen size
Screen size 4:3
Project distance (L)
Hd
Diagonal
Height A
Width B
Min.
Max.
inch
cm
inch
cm
inch
cm
inch
m
inch
m
inch
cm
40
102
24
61
32
81
65
1.6
79
2.0
6.8
17
60
152
36
91
48
122
98
2.5
119
3.0
10.2
26
80
203
48
122
64
163
132
3.3
159
4.0
13.6
35
100
254
60
152
80
203
165
4.2
200
5.1
17.0
43
150
381
90
229
120
305
248
6.3
300
7.6
25.5
65
200
508
120
305
160
406
332
8.4
–
–
34.0
86
250
635
150
381
200
508
–
–
–
–
42.5
108
275
699
165
419
220
559
–
–
–
–
46.8
119
Screen size 4:3
Size of the projected image 16:9
Project distance (L)
Hd
Diagonal
Height C
Width B
Height A
Blank space (D)
Min.
Max.
inch
cm
inch
cm
inch
cm
inch
cm
inch
cm
inch
m
inch
m
inch
cm
40
102
24
61
32
81
18.0
46
3.0
8
51
1.3
63
1.6
6.0
15
60
152
36
91
48
122
27.0
69
4.5
11
78
2.0
95
2.4
9.1
23
80
203
48
122
64
163
36.0
91
6.0
15
105
2.7
127
3.2
12.1
31
100
254
60
152
80
203
45.0
114
7.5
19
132
3.3
159
4.0
15.1
38
150
381
90
229
120
305
67.4
171
11.3
29
198
5.0
240
6.1
22.7
58
200
508
120
305
160
406
89.9
228
15.0
38
265
6.7
320
8.1
30.2
77
250
635
150
381
200
508
112.4
286
18.8
48
332
8.4
401
10.2
37.8
96
300
762
180
457
240
610
134.9
343
22.6
57
398
10.1
–
–
45.3
115
C
A
D
D
B
Hd
Screen size
Hei
g
ht
of the s
cr
een
Width of the projected image
Heig
ht o
f t
h
e
proj
ect
ed
im
ag
e
Center of the lens
Projected distance (L)