LHD700 User Manual
020-000422-01 Rev.1 (11-2011)
Installation
19
Focus adjustment
Set up the projector and project image on the
screen.
1 .
Adjust the focus to make the center area
sharpest, by using the focus adjustment of the
projector.
When the peripheral focus is out of focus in some
localized areas, proceed to following adjustments.
2 .
Loosen the Focus Lock Screw of the lens. (Turn
the Focus Lock Screw to counter-clockwise.)
3 .
Rotate the lens to obtain proper focus on outer
area of the screen.
4 .
Lock the Focus Lock Screw securely. (Turn the
Focus Lock Screw to clockwise.)
If proper focus is not observed entire screen, repeat
above adjustment 1~ 4.
Focus correction
103-140106-01
When the lens is attached to the projector and
images are being projected onto the screen, the
peripheral focus may be out of focus in some
localized areas. If this happens, insert the one,
of three sizes of spacers, in between the Lens
Attachment and the lens to adjust the focus.
Inserting the Spacer corrects the distance on the
Lens Adjustment and improves the diagonal focus.
The corrected distance is determined by the
thickness of the used spacers. As a guide, the
distance is adjusted by approximately 30 mm for
each 0.1-mm thickness of the spacers.
There are three types of spacers provided, and
there are four of each spacer type. Use these
spacers to correct the distance as required.
Focus Lock Screw
Spacer "1"
Color; Clear
Thickness; 0.1 mm
Spacer "2"
Color; Black
Thickness; 0.2 mm
Spacer "3"
Color; Cream
Thickness; 0.3 mm
Correction distance
30 mm/for 40-inch
projection
Correction distance
55 mm/for 40-inch
projection
Correction distance
80 mm/for 40-inch
projection
Some parts are not used for installation or
replacement. Keep these parts for later use.
BE SURE TO CHECK FOR SAFETy
After installing or replacing the lens, be sure to
check the following for safety.
1. Check the lens is securely fixed
with the screws.
2. Check no wiring is damaged or
tangled on the gear of the lens
motor or the other mechanical
parts.
3. Check no part is missing, and no
mounting part is loose.
Note:
• Figures in this manual may differ from the
actual product.
B
C
D
A
B
C
D
A
Spacer
Lens
Lens Attachment
Screw driver in the lens
D
B
C
A
Distance
Screen
40-inch projection
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