Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 5 -
LGE Internal Use Only
1. Application Object
This instruction is for the application to the DLP Projector
(Chassis: FM91A).
2. Notes
(1) The power source insulation of this DLP Projector is not
charging type and you may not use the transformer for
insulation. It is advised to use an insulation transform
between the power supply cable and power input of the set
to protect the test equipment.
(2) The adjustment must be performed under the correct
sequence.
(3) The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity.
(4) The set must be on for 5 minutes prior to any adjustment.
After receiving possible 100% White Pattern, it is ready for
adjustment.
3. Composition of Adjustment Mode
(1) Pressing the adjust key on the service remote conrol will
open or close the service menu.
(2) Press the ADJ key to exit the service menu.
(3) Preparation for Adjustment
1) Power is connected in set to be power on.
2) Do heat run 5minutes.
4. Folding Mirror Adjustment
4-1. Illuminator Adjustment Sequence
After putting the optical engine on the jig, check whether the
mirror part is fixated vertically. At this time the screen size
should be based on 40”. With the screen in full white
condition, look at the change in screen and brightness of the
illuminator to make appropriate adjustments.
(1) Up and Down Adjustment
1) Turn screw (A) up / down adjustment to the right and
mark where the image is aligned.
2) Turn screw (A) up / down adjustment to the left and
mark where the image is aligned.
3) Turn screw (A) up / down adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
(2) Left and Right Adjustment 1
1) Turn screw (B)Left / Right adjustment to the right and
mark where the image is aligned.
2) Turn screw (B) Left / Right adjustment to the left and
mark where the image is aligned.
3) Turn screw (B)Left / Right adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
(3) Left and Right Adjustment 2
1) Turn screw (C)up / down adjustment to the right and
mark where the image is aligned.
2) Turn screw (C) up / down adjustment to the left and
mark where the image is aligned.
3) Turn screw (C)up / down adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
ADJUSTMENT INSTRUCTION
B
Right/Left Adjustment
Up/Down Adjustment
A
<Fig. 4-1> Check location of the bottom side of the folding mirror
Step 1
Step 2
Step 3
<Fig. 2> Illuminator Up / Down Adjustment Sequence
Step 1
Step 2
Step 3
<Fig. 3> Illuminator Left/Right Adjustment Sequence 1
Step 1
Step 2
Step 3
<Fig. 4-2> Illuminator Left/Right Adjustment Sequence 2