Lens Tilt Adjustment - Panasonic PT-RZ470 Series Service Manual

4. Adjustment screw coordinates the horizontal direction
of the Lighting area with flat-blade screwdriver.
* Rotation of a screw is stopped in the middle position
where a lighting area edge appears in right and left.
5. Adjustment bracket coordinates the vertical direction
of the Lighting area with flat-blade screwdriver.
* Rotation of a screw is stopped in the middle position
where a lighting area edge appears in up and down.
6. When adjustment is completed, tighten two fixation screws.
7. Stick the new sponge1 and sponge2, to original position.
* Do not reuse the old sponges.
1. 2. Lens Tilt Adjustment
1. 2. 1. Preparation
< Projector setting before optical adjustment >
* Fix the shift position to the center and set the zoom
ring to wide end.
* Installs so that a projection screen size is
2.29m(90") diagonal.
* Installs so that a projection lens light axis and
screen center may become the same height.
* Installs so that a lens optic axis may become
perpendicular to a screen.
1. 2. 2. Focus Confirmation
Note: It is necessary for the light axis to be perpendicular to the screen to make correct confirmation and adjustment.
1. Go into the Serviceman mode and select "Convergence pattern" in internal test pattern.
2. Rotate the focus ring and set the focus balance of ① to ⑤(fig 1).
3. Judgement
It is OK with C level or higher when ① to ⑤ focus balance is set.
A: Each dot can be seen clearly. (There is a gap between dots.)
B: Each line can be seen clearly. (There is a gap between lines.)
C: Each line can be recognized but border of each line is not clear.
D: Each line cannot be recognized.
In case of D, please adjust the lens tilt adjustment.
<Projection size>
90 inches
①
⑤
③
< Fig１ >
ADJ - 3
RZ470 : 3.14m (16:10)
RW430 : 2.97m (16:10)
②
④
Limit in OK level
Adjustment
screw
Adjustment
bracket
(flat-blade screwdriver)
Stand
NG level