White Balance Adjustment - LG RU-44SZ51D Service Manual

12. White Balance Adjustment

(Day Light Mode) : R fixation
12-1. Required Test Equipments
CA100 or CA210
12-2. White basse balue(Medium)
x = 0.283¡ 0.01, y = 0.297¡ 0.01
12-3. Adjustment Sequence
(1) Install the equipment(CA110 or CA210) be 20cm away
from screen center.
(2) Select White balance by pressing ADJ Mode Key on
Remote control.
(3) Warm(6500cK) : x = 0.313, y = 0.329
1) R Gain 120 fixation
2) Adjust white balance changing G, B gain.
(Gain default: R-120, G-110, B-100)
3) Offset fixation R/G/B --> -29, -28, -24
(4) Medium(9300cK) : x = 0.283, y = 0.297
1) R Gain 110 fixation
2) Adjust white balance changing G, B gain.
(Gain default: All 110)
3) Offset fixation R/G/B --> -26, -25, -24
(5) Cool(12000cK) : x = 0.275, y = 0.277
1) R Gain 110 fixation
2) Adjust white balance changing G, B gain.
(Gain default: R-110, G-110, B-120)
3) Offset fixation R/G/B --> -25, -24, -24
* Reference : Gamma table -> 2
Brightness -> 200Level
Spoke Func. -> 0
R/G/B offset -> It has each color temperature
13. CWI Adjustment
13-1. Required Test Equipments
Remote control for adjustment
13-2. Preparation for Adjustment
(1) Connect the power at TV set to turn set on
(2) Using the remote control, enter from ADJUST to CWI.
(160)
13-3. Adjustment Sequence
(1) Using the Volume key, adjust CWI to the left/right
(2) As adjustment, check the appearance noise in the TEST
Pattern. Setting the value reduced 3~4 step at a GREEN
noise disappearing spot.
(3) Using CH UP/DOWN key of th remote control, enter the
RED PATTERN.
ADJUSTMENT INSTRUCTIONS
fixation price
(4) Check the RED Pattern to uniform. After checking unless
abnormality do OK.
(color wheel index)
CWI 160
<Fig 14> TEST Pattern(Lamp Gray Pattern)
(color wheel index)
CWI
162
(color wheel index)
CWI 160
<Fig 15> TEST Pattern(RED Pattern)
* As temperature is different sensitivity, change angle of the
color wheel. At this time, the adjustment is done because
color may be changed.
- 17 -
starting point of noise
(appearance GREEN)