LG RU-44SZ63D, Service Manual

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ADJUSTMENT INSTRUCTIONS
5. Adjusting the Optical Engine
(1) After placing the optical engine on the JIG, adjust
illuminator by adjuting with automatic adjustment the B as
shown <Fig. 3>.
1) When adjust illuminator, search the scope does not fall
in illuminator and Tilt adjustment complete with
automation equipment in that scope.
2) After adjusting, A fix with Screw using automation
equipment.
(2) In order to move Optical system the Tilt is adjusted to
center of the screen, image with top/bottom direction adjust
using B as shown <Fig. 4>.
1) Turn B CW to move the image up, CCW to move the
image down.
2) Turn A CC to move the image right, CCW to move the
image left
(3) After adjusting the illuminator, adjust the focus by using
the focus adjustment screw of projection lens. After
adjusting, fasten the screw tighty and secure with sealer.
[
Note: The focus check point is not the screen center but the
upper/lower screen.
1) <Fig. 6> shows the pattern for Focus adjustment
2) Adjust the 4 green ellipse so that all are in equal focus.
3) If you can’t check the DMD cell bourder at red center
position after adjustment, regard as NG.
4) <Fig. 7> shows the magnified pattern for checking the
focus adjustment
<Fig. 6>
<Fig. 7>
A
B
<Fig. 3>
A
B
<Fig. 4>
Inject the resilock
Screw Fix.
<Fig. 5>