- 13 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5.1.5. Adjustment method
5.1.5.1. Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.1.5.2. Manual adjustment
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface..
(3) Press ADJ key → EZ adjust using adj. R/C → 6. White-
Balance then press the cursor to the right (KEY►).
(When KEY(►) is pressed 204 Gray(80IRE) internal
pattern will be displayed)
(4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
color temperature.
※ CASE
First adjust the coordinate far away from the target value(x,
y).B
(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
► How to adjust
(1) Fix G gain at least 172 :
Adjust R, B Gain ( In Case of Mostly Blue Gain Saturation )
(2) When R or B Gain > 255, Release Fixed G Gain and
Readjust
※ CASE : Medium / Warm mode
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
5.1.6. Reference (White Balance Adj. coordinate and
color temperature)
▪ Luminance: 204 Gray, 80IRE
** (normal line) LGD Cell (LF56xx, LF55xx,LF54xx)
▪ Standard color coordinate and temperature using
CA-210(CH-14) – by aging time
L15
Aging time
(Min)
Cool Medium Warm
X Y X Y X Y
271 270 286 289 313 329
1 0-2 281 285 296 304 323 344
2 3-5 280 284 295 303 322 343
3 6-9 279 282 294 301 321 341
4 10-19 277 279 292 288 319 338
5 20-35 275 275 290 294 317 334
6 36-49 273 273 288 292 315 332
7 50-79 272 272 287 291 314 331
8 80-119 271 270 286 289 313 329
9 Over 120 271 270 286 289 313 329
** (Aging chamber) LGD Cell (LF56xx, LF55xx,LF54xx)
▪ Standard color coordinate and temperature using
CA-210(CH-14) – by aging time
L15
Aging time
(Min)
Cool Medium Warm
X Y X Y X Y
271 270 286 289 313 329
1 0-5 280 285 295 304 319 340
2 6-10 276 280 291 299 315 335
3 11-20 272 275 287 294 311 330
4 21-30 269 272 284 291 308 327
5 31-40 267 268 282 287 306 323
6 41-50 266 265 281 284 305 320
7 51-80 265 263 280 282 304 318
8 81-119 264 261 279 280 303 316
9 Over 120 264 260 279 279 303 315
** For INX,AUO,SHARP,CSOT Module.( In the case of , the
color temperature spec of cool mode is 13000K)
L15
cool med warm
x y x y x y
spec 271 270 286 289 313 329
target 276 277 291 296 318 336
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