19LD330, 19LD340, 19LD345 (CHASSIS:LP91H) - LG TV Service Manual (repair manual). Page 12

* CASE

First adjust the coordinate far away from the target value(x, y).
1) x, y > target

i) Decrease the R, G. 

2) x, y < target

i) First decrease the B gain, 
ii) Decrease the one of the others.

3) x > target, y < target

i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R

4) x < target, y > target

i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using the

CA100+ or CA210 equipment

To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : select Vivid and change
Dynamic Contrast : Off
Dynamic Colour : Off
-> Picture Mode change : Vivid -> Vivid(User)
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)

(using adjusts Remote control)

- Dimming checking is doing in “Power Only” mode.
- Enter the signal of component. (Pattern : 7(combination),

Time : 225 (1920 *1080))

- Push the button “Tilt”.
- Checking the function of Dimming refer to the picture at below.
- Push the button “Tilt” or “Exit” key.

- 12 -

Color Coordinate

Mode

x y 

Temp. ∆uv

Cool

0.285 ± 0.002  0.293 ± 0.002

9,300 K

0.000

Medium

0.295 ± 0.002

0.305 ± 0.002

8,000 K

0.000

Warm

0.313 ± 0.002

0.329 ± 0.002

6,500 K

0.003

Pattern 7 (Combination)

Local Dimming Demo screen