How To Adjust The Lens For Addressing Unevenness Of Focusing - Panasonic PT-D7500U Operating Instructions Manual

How to adjust the lens
PT-D7600U
Floor projection
0.31H

How to adjust the lens for addressing unevenness of focusing

If the image is out of focus in any portion of the screen, adjust the lens by turning the adjustment screws to obtain
evenness of focusing.
Remove the lens cover and lens (Refer to
page 38).
Loosen the three fixing screws that secure
the lens bracket about two turns.
• Tool to be used : Allen hex socket driver or Allen
wrench (2.5-mm diagonal hexagon)
Install the lens removed in step
Adjust the lens by turning the adjustment
screws ,
• Tool to be used : Allen hex socket driver or Allen
wrench (2.5-mm diagonal hexagon)
The instructions within parentheses apply to ceiling mount installation.
V up is out of focus
(Turn counterclockwise)
Turn counterclockwise
( )
Turn counterclockwise
( )
(For example)
When the image is out of focus in the upper portion of the
screen (V up):
Turn the adjustment screws
counterclockwise while checking evenness of focusing in
the upper and lower portions.
Note
• Be sure to tighten the fixing screws before
transportation.
42
Projected
0.31H
screen width,H
, and counterclockwise.
V bottom is out of focus
Turn counterclockwise
( )
(Turn counterclockwise)
(Turn counterclockwise) (Turn counterclockwise)
and little by little
Ceiling projection
Standard
projection
position
.
H right is out of focus
( )
Turn counterclockwise
( )
Projected
0.31H
screen width,H
Lens bracket
a
c
Adjust the screws
installing the lens.
H left is out of focus
( )
(Turn counterclockwise)
Turn counterclockwise
( )
V
up
H
left
V
bottom
Standard
projection
position
0.31H
Fixing screws
b
, , and after
H
right