How To Adjust The Lens For Addressing Unevenness Of Focusing - Panasonic PT-D7700 Operating Instructions Manual

How to adjust the lens

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
, and counterclockwise.
V bottom is out of focus
Turn counterclockwise
( )
(Turn counterclockwise)
(Turn counterclockwise) (Turn counterclockwise)
and little by little
Lens bracket
.
H right is out of focus H left is out of focus
( )
Turn counterclockwise
( ) (Turn counterclockwise)
Turn counterclockwise
H
left
a
c
Adjust the screws ,
installing the lens.
( )
( )
V
up
H
right
V
bottom
Fixing screws
b
, and after