Hitachi CP-AW250N User Manual - Page 7

Arrangement - mount

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Setting up Setting up Install the projector according to the environment and manner the projector will be used in. 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: 1280 x 800 a Screen size (diagonal) b Projection distance (±8%) c1 , c2 Screen height (±8%) • On a horizontal surface a c2 c1 b • Mounted on the wall or ceiling b c1 a c2 a Screen size (diagonal) type(inch) m 60 1.5 70 1.8 80 2.0 90 2.3 100 2.5 b c1 Projection distance Screen height m inch m inch 0.120 4.7 0.295 11.6 0.188 7.4 0.332 13.1 0.256 10.1 0.369 14.5 0.324 12.8 0.407 16.0 0.392 15.4 0.444 17.5 c2 Screen height m inch 1.102 43.4 1.274 50.2 1.446 56.9 1.618 63.7 1.791 70.5 • If the projector is used at an altitude of about 1600m or higher, set FAN SPEED of the SERVICE item in the OPTION menu to HIGH. Otherwise, set it to NORMAL. If the projector is used with a wrong setting, it may cause damage to the projector itself or the parts inside. • For the case of installation in special conditions such as on the wall or ceiling, the specified mounting accessories and service may be required. Before installing the projector, consult your dealer about your installation. • The screen position may shift after installation if the projector is mounted on locations such as the wall or ceiling, due to the flexibility of the plastic projector body. If readjustment is necessary, consult with your dealer or service personnel. • The projected image position and/or focus may change during warm-up (approx. 30 minutes after the lamp is turned on) or when the ambient conditions change. Readjust the image position and/or focus as necessary. • Since the projector features an ultra short throw, be aware that it is required to select a screen carefully to have better performance. - A soft screen such as a pull-down screen may cause serious distortion of a projected image. A hard screen such as a board screen is recommended for use with this projector. - A high-gain screen such as a bead screen that has narrow viewing angle is not suitable for this projector. A low-gain screen (around 1.0) such as a matte screen that has wide viewing angle is recommended for use with this projector. - A screen with a weave pattern may cause moiré on the projected image, which is not a failure of the projector. A screen that has less moiré effects is recommended for use with this projector. (continued on next page) 7

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7
Setting up
Install the projector according to the environment and manner the projector will be
used in.
Setting up
(continued on next page)
a
c2
c1
b
a
c2
c1
b
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: 1280 x 800
a
Screen size (diagonal)
b
Projection distance (±8%)
c1
,
c2
Screen height (±8%)
•
The screen position may shift after installation if the projector is mounted on locations
such as the wall or ceiling, due to the flexibility of the plastic projector body. If readjustment
is necessary, consult with your dealer or service personnel.
•
The projected image position and/or focus may change during warm-up (approx. 30
minutes after the lamp is turned on) or when the ambient conditions change. Readjust
the image position and/or focus as necessary.
•
Since the projector features an ultra short throw, be aware that it is required to select a
screen carefully to have better performance.
- A soft screen such as a pull-down screen may cause serious distortion of a projected
image. A hard screen such as a board screen is recommended for use with this projector.
- A high-gain screen such as a bead screen that has narrow viewing angle is not suitable
for this projector. A low-gain screen (around 1.0) such as a matte screen that has wide
viewing angle is recommended for use with this projector.
- A screen with a weave pattern may cause moiré on the projected image, which is not a
failure of the projector. A screen that has less moiré effects is recommended for use with
this projector.
• On a horizontal surface
•
Mounted on the wall or ceiling
• If the projector is used at an altitude of about 1600m
or higher, set FAN SPEED of the SERVICE item in the
OPTION menu to HIGH. Otherwise, set it to NORMAL. If
the projector is used with a wrong setting, it may cause
damage to the projector itself or the parts inside.
• For the case of installation in special conditions such as
on the wall or ceiling, the specified mounting accessories
and service may be required. Before installing the
projector, consult your dealer about your installation.
Screen size
(diagonal)
b
Projection distance
c1
Screen height
c2
Screen height
type(inch)
m
m
inch
m
inch
m
inch
60
1.5
0.120
4.7
0.295
11.6
1.102
43.4
70
1.8
0.188
7.4
0.332
13.1
1.274
50.2
80
2.0
0.256
10.1
0.369
14.5
1.446
56.9
90
2.3
0.324
12.8
0.407
16.0
1.618
63.7
100
2.5
0.392
15.4
0.444
17.5
1.791
70.5
a