Hitachi CP-A300NM User Manual

Page of 261
7
Setting up
Install the projector according to the environment and manner the projector will be 
used in.
Setting up
(continued on next page)
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 (±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 exibility 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 1600 m or 
higher, set FAN SPEED of the SERVICE item in the OPTION 
menu to HIGH 
( 58). 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 specied 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 0.096
3.8
0.281
11.1
1.196
47.1
70
1.8 0.161
6.3
0.317
12.5
1.384
54.5
80
2.0 0.225
8.9
0.352
13.9
1.571
61.9
90
2.3 0.289
11.4
0.387
15.2
1.759
69.2
100
2.5 0.353
13.9
0.423
16.6
1.947
76.6
a
a
c2
  
c1
  
b
a
c2
  
c1
  
b