Panasonic PT-D12000U Operating Instructions Manual page 43

If the lens is heavy or the projector is installed so that it is tilted, the lens may be tilted, resulting in the focus
becoming unbalanced.
In such a case, refer to the figure 4 and table below, and follow the procedure below to perform adjustment.
Adjustment procedure
1 Display the internal test pattern grid, and defocus the image.
2 Adjust the lens focus till one or more sides of the grid comes into focus. Note the appropriate screws
for the out-of-focus sides of the grid as described below.
3 Remove the lens cover and lens.
4 Loosen the locking screws for each of the adjustment screws a, b and c as needed, following the
indications in the example. The screws to be adjusted correspond to the out-of-focus sides of the
image.
Attention
• Be careful because turning a screw more than twice to loosen it will result in the spring becoming detached
and the projector needing to be repaired.
• Make adjustments in up to two places, and fully turn the screw clockwise in at least one place.
5 Reinstall the lens. The adjustment screws can be accessed through the lens flange.
6 Turn the adjustment screws (corresponding to the locking screws loosened in step 4) counterclockwise
slightly till the out-of-focus image sides are in focus. (Turning the screws counterclockwise moves the
lens bracket and tilts the lens toward the screen.)
7 Readjust the lens shift position with the remote if needed.
8 Refocus the image as in steps 1 and 2 above. Fine adjust the focus evenness as needed, as described in
step 6.
9 When adjustment is complete, remove the lens and then tighten the locking screws.
j Install the lens and lens cover.
Tool to be used: Allen hex socket driver or Allen wrench (2.5 mm diagonal hexagon)
An Allen wrench is supplied with the ET-D75LE6 and ET-D75LE8 optional lens.
Figure 4 : Relation between the adjustment place and adjustment screw
c
up
V
b+c
left
H
c+(a)
bottom
V
a
ac
Screen
Adjustment place: The place where the just-in-focus point is at the back.
When optimal focus
point is at front of screen
for V up
Turn counterclockwise
a
b
c
b
right
H
b+(a)
Projector
ab
When optimal focus is
at front of screen for V
bottom
Turn counterclockwise
Turn counterclockwise
When optimal focus is at
front of screen for H left
Turn counterclockwise
When optimal focus is
at front of screen for H
right
Turn counterclockwise
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