Be sure that the projector is
level to the floor.
Use the PSS-70 Projector
Suspension Support (not
supplied).
WHAT IS THE
OPTICAL AXIS
ANGLE?
The optical axis angle is the
angle between the horizontal
level line and the straight
line from the center of the
projector’s green lens to the
center of the screen. When
using a rear projection
screen, you can get the
brightest picture when the
center of the screen is
aligned with a straight line
extension of the center of
the green lens.
Therefore, the most
suitable optical axis angle
varies depending on the
height of the screen and
your line of sight.
B:Difference in height
between the projector’s
bottom surface and the
center of the screen
E: Horizontal distance
between the center of
the screen and the
center of the green lens
F: Horizontal distance
between the center of
the screen and the
standard hole for
installation
Tolerances
B: ±5%
Other measurements:
0% to +5%
E: Horizontal distance
between the center of
the screen and the
center of the green lens
Tolerances
B: ±5%
Other measurements:
0% to +5%
A
C
E
G
Wall
Center of the
green lens
B
D
F
H
274.8 (10
13
/
16
)
Standard
hole for
installation
Floor
Center of the
screen
15.2˚
15.2˚
Rotation axis
of the PSS-70
372 (14
21
/
32
)
A
C
E
G
Wall
Center of the green lens
B
D
F
′
H
274.8
(10
13
/
16
)
Ceiling
Center of the
screen
2˚
Optical
axis
angle
A
E
G
Wall
B
F
Standard
hole for
installation
Floor
Center of the screen
14.6˚
0
+
–
