LG BN315, Service Manual

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1. Application Object
This instruction is for the application to the DLP Projector
(Model : BN315-JD).
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 input voltage of the receiver must keep 110V~, 60Hz
during adjustment.
(5) The set must be on for 5 minutes prior to any adjustment.
After receiving possible 100% white pattern, it is operated
preliminary.
3. Composition of Adjustment Mode
(1) Pressing the adjust key on the service remote will open or
close the service menu.
(2) Composition of adjustment mode : In pressing early Adjust
showing screen set
(3) As shown <Fig. 1>, use the CH+ ( D ),CH- ( E ) key, select
to item press the ENTER or VOLUME key to enter the item
you wish to adjust.
(4) Press the ADJ key to exit the service menu.
(5) Preparation for Adjustment
1) Power is connected in set to be power on.
2) Do heat run 5minutes.
4. Folding Mirror Adjustment
4-1. Before adjusting, check the position of
Folding MIrror
Check the position of Folding Mirror in the base of up /
down / left / right surface. (Fig. 2)
(1) Check the Lower Position
As shown <Fig. 2>, fix lower position of mirror so they are
vertically aligned with the base surface.
(2) Check the Left / Right Position
After checking the lower position, as shown <Fig. 3>, fix
the sides so they are vertically aligned with the base
surface.
4-2. Illuminator Adjustment Sequence
After putting optical engine on JIG, check the mirror part.
Check the full white screen and make adjustments in the
following sequence.
(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.
ADJUSTMENT INSTRUCTION
<Fig.2> Check the Lower Position of Folding Mirror
<Fig.3> Check the Left / Right Position of Folding Mirror
<Fig. 1> OSD of Adjustment Mode
<Fig.4> Illuminator Adjustment Part by Folding Mirror
OPTIC CHECK
F
WHITE
G
RGB GAIN/OFFSET
COMPONENT GAIN/OFFSET
CWI
WITHE BALANCE
DMD
Manual CCA
G
www.freeservicemanuals.info 27/1/2015
Digitized in Heiloo, Holland