Chapter 3
Basic Operations — Projecting
ENGLISH - 79
How to adjust the focus balance (adjustment by tilting the lens mounter)
When the entire screen surface is not uniform even if the focus has been adjusted, the lens mounter has focus
adjustment screws in three locations.
f
Tool used: Hex driver or Allen wrench (diagonal 4.0 mm (5/32"))
f
The Allen wrench supplied with the projection lens ET-D75LE6 or ET-D75LE8 cannot be used.
Lens mounter structure
Focus adjustment screws (a), (b), and (c) can be turned to move the lens mount bracket back and forth.
Also, tightening the fixed screws locks the lens mount bracket in place so it does not move.
When a projection lens with a large weight is installed, or when the projector is installed on an inclination, the
lens may tilt and the focus may become unbalanced. In these cases, perform adjustment by referring to the
relationship between the adjustment location and adjustment screws.
r
Front view diagram of the lens mounter (viewed from the screen side)
(a)
(b)
(c)
Lens mount bracket
Fixing screws
Note
f
Focus adjustment screws (a), (b), and (c) are adjusted with the lens attached.
Adjustment procedure
r
Relationship between the adjustment location and adjustment screws
(b)
(c)
(a)
(b)+(c)
Adjustment location:
Location where the just focus point of the screen is in the
inner side of the screen
When the just focus point of
the screen in V up (top in the
vertical direction) is in the inner
side of the screen
When the just focus point of the
screen in V bottom (bottom in
the vertical direction) is in the
inner side of the screen
When the just focus point of
the screen in H left (left in the
horizontal direction) is in the
inner side of the screen
When the just focus point of the
screen in H right (right in the
horizontal direction) is in the
inner side of the screen
(a)
Rotate counterclockwise
―
―
―
(b)
―
Rotate counterclockwise
Rotate counterclockwise
―
(c)
―
Rotate counterclockwise
―
Rotate counterclockwise
1) Press the <FOCUS> button on the remote control or the <LENS> button on the control panel to
display the focus adjustment screen.
2) Press
s
to shift the focus of the entire screen once.
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