LG BX401C Service Manual page 10

4-2. Illuminator Phenomenon Adjustment
Adjustment Screw
part direction
Right
(tighten
direction)
Up/down
screw A
Left
(loosen
direction)
Right
(tighten
direction)
left/right
screw B
Left
(loosen
direction)
Right
(tighten
direction)
left/right
screw C
Left
(loosen
direction)
4-3. Coherent Light Source Adjustment
(1) Coherent light source specification
: 100% of center black brightness
(Refer to product specification)
=> Same specification applied for coherent light source of <Fig. 4-3> type
(2) Optical axis
: Adjust so that it is set at the center.
<Fig. 4-3> Coherent Light Source
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Illuminator goes down direction
Screen state
Initial state State after adjusting
- 10 -
Illuminator goes down area
Description
At first, upside illuminator goes down
and right illuminator also goes down in
detail.
At first, downside illuminator goes
down and left illuminator also goes
down.
At first, left illuminator goes down and
downside illuminator also goes down.
At first, right illuminator goes down and
upside illuminator also goes down.
At first, left illuminator goes down and
downside illuminator also goes down.
At first, right illuminator goes down and
upside illuminator also goes down.
LGE Internal Use Only