LG PW800G, Service Manual, Page: 6 / 29

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Adjustment
Part
Screw Rotation Screen Status Adjustment Description
Initial Status After Adjustment
Up/Down
Adjustment
Screw A
Clockwise
(Tightening
direction)
As the light at the top first fades away,
the light on the right side also starts to
slowly fade.
Counterclockwise
(Loosening
direction)
As the light at the bottom first fades
away, the light on the left side also
starts to slowly fade.
Left/Right
Adjustment
Screw B
Clockwise
(Tightening
direction)
The light at the top first fades away,
and then the light on the left side also
starts to slowly fade.
Counterclockwise
(Loosening
direction)
The light at the bottom first fades
away, and then the light on the right
side also starts to slowly fade.
Left/Right
Adjustment
Screw C
Clockwise
(Tightening
direction)
The light on the right side first fades
away, and then the light at the top
also starts to slowly fade.
Counterclockwise
(Loosening
direction)
The light on the left side first fades
away, and then the light on the bottom
side also starts to slowly fade.
4.2. Illuminator Phenomenon Adjustment
G
4.3. Final Lighting System Adjustment
Repeat the steps outlined in 4.1, 4.2, twice and make sure
that the light has been adjusted in the directions where the
screws have been fastened completely
using a driver. Find the best location for light and make sure
there are no areas with faded light that can be seen with the
naked eye.
Also, check for foreign objects, the focus line width
(measuring items: see the figures below), and the focus
stopper position, and then fix the lighting adjustment lens.