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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.2.5. Adj. method
(1) Auto adj. method
1) Set TV in adj. mode using P-Only key.
2) Zero calibrate probe then place it on the center of the
display.
3) Connect Cable.(RS-232C to USB)
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sign), check adj. status pre
mode. (Cool, Medium, Warm)
6) Remove probe and RS-232C cable to complete adj.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
(2) Manual adjustment. method
1) Set TV in Adj. mode using P-Only key.
2) Zero Calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10 cm of the surface.
3) Press ADJ key → EZ adjust using adj. R/C → 7. White-
Balance then press the cursor to the right(key ►).
(When right key(►) is pressed 204 Gray internal pattern
will be displayed)
4) Adjust modes(Cool) Fix the G gain to 172(default data)
and change the others(R/B Gain). Adjust two modes
(Medium/Warm) Fix the one of R/G/B gain to 192(default
data) and decrease the others
5) Adjustment is performed in COOL, MEDIUM, WARM 3
modes of color temperature.
▪ If internal pattern is not available, use RF input. In EZ
Adj. menu 7.White Balance, you can select one of 2
Test-pattern: ON, OFF. Default is inner(ON). By selecting
OFF, you can adjust using RF signal in 204 Gray pattern.
* CASE Cool
First adjust the coordinate far away from the target
value(x, y).B
1. x, y > target
2. x, y < target
3. x > target, y < target
4. x < target, y > target
- Every 4 case have to fit y value by adjusting B Gain
and then fit x value by adjusting R-Gain
- In this case, increasing/decreasing of B Gain and R
Gain can be adjusted.
How to adjust
1. Fix G gain to 172
Adjust R Gain and B Gain(In Case of Mostly Blue Gain
Saturation)
2. When B Gain>255, Release Fixed G Gain and readjust
* CASE Medium / Warm
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) The one value is bigger than the target then the other
one should be not much more bigger than target.
iii) In case that we take x off, we also take R (G-gain fix)
In other case that we take y off, we also take G(R-
gain fix)
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 y value by decreasing the G
▪ Adjustment condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to
isolate adj. area into dark surrounding.
2) Probe location
: Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface (90° +/- 2.5)
4.2.6. Reference (White balance Adj. coordinate and
color temperature)
▪ Luminance : 204 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
▪ Standard color coordinate and temperature using CA-210
(CH 14)
4.2.7. LED White balance table
- EDGE LED module change color coordinate because of
aging time.
- Apply under the color coordinate table, for compensated
aging time.
* Only March to December & Global
Model : (Normal line) LB49/57/58_LGD/CMI
Mode
Coordinate
Temp ∆uv
x y
Cool 0.271 ± 0.002 0.270 ± 0.002 13000 K 0.0000
Medium 0.286 ± 0.002 0.289 ± 0.002 9300 K 0.0000
Warm 0.313 ± 0.002 0.329 ± 0.002 6500 K 0.0000
Mode
Coordinate
Temp ∆uv
x y
Cool 0.271 0.270 13000 K 0.0000
Medium 0.286 0.289 9300 K 0.0000
Warm 0.313 0.329 6500 K 0.0000
NC4.5
Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 286 289 313 329
1 0-2 281 287 295 310 320 342
2 3-5 280 285 294 308 319 340
3 6-9 278 284 292 307 317 339
4 10-19 276 281 290 304 315 336
5 20-35 275 277 289 300 314 332
6 36-49 274 274 288 297 313 329
7 50-79 273 272 287 295 312 327
8 80-119 272 271 286 294 311 326
9 Over 120 271 270 285 293 310 325
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