LG HX300G, Service Manual

Page: 8 / 74

9-3. Adjustment
* Carry out a heat run on the set for 5 minutes before
adjustment
(1) Connect as in the equipment composition diagram then
enter into adjustment mode by selecting “ADJ” on the
remote control.
(2) Execute adjustment by pressing the right direction key on
“4. DDP LED CURRENT CTRL” (Fig. 9-2)
(3) Read the coordinates on CL200 meter, and verify if x and
y values are within the following boundaries.
x = 0.240 ~ 0.340
y = 0.280 ~ 0.380
(4) If they do not come inside the boundary, adjust ‘Current
Index’ value in the order of 0 -> 9 to set to the value that
first come inside the boundary, and exit by pressing
‘Adjust’.
O Caution : When it is not within the boundary, make sure
to change starting from 0 in the order of 1, 2, 3
and verify the coordinates, and set to the value
that first comes inside the boundary.
(5) Execute adjustment by pressing the right direction key on
“2. DDP AUTO CCA” (Fig. 9-3)
(6) Message as shown below can be verified after completion
of adjustment, and readjust following the (5)(6) step if
“Fail” occurs.
“OK” : White Balance Process Successful and Warm, Cool
chromaticity diagram is within the target.
“Fail” : White Balance Process Failure -> Execute
readjustment.
“Warm Fail” : White Balance Process Successful and
Warm chromaticity diagram deviated more
than 0.005 from the target.
“Cool Fail” : White Balance Process Successful and Cool
chromaticity diagram deviated more than
0.005 from the target.
“Warm and Cool Fail” : White Balance Process Successful,
and both Warm can Cool
chromaticity diagrams deviated
more than 0.005 from the target.
(7) For verification of White Balance adjustment results, press
ADJ Key and enter “3. Manual CCA”. (Fig. 9-4)
(8) Read the coordinate of CL200 changing the Color Temp
Mode to Medium, COOL, Warm for checking the Spec of
each mode.
- Warm Mode : x = 0.313 ± 0.004, y = 0.326 ± 0.004
- Cool Mode : x = 0.283 ± 0.004, y = 0.297 ± 0.004
10. Brightness Inspection
- Measure the subjects below and it should satisfy the spec of
product specification.
(1) Brightness(Annsi-Lumen)
(2) Whiteness color coordinate(KAGA measures R,G,B color
coordinate)
(3) Color Uniformity
(4) Brightness Uniformity
- 8 - LGE Internal Use Only Copyright © 2010 LG Electronics Inc. All rights reserved.
Only for training and service purposes
(Fig. 9-4) Selection Category on INSTART Menu (Left)
(Fig. 9-5) Menu after entering Manual CCA (Right)
(Fig. 9-2)
(Fig. 9-3)