Edge & Iol Led White Balance Table - LG 79UB980T-TA Service Manual

4.3.5. Adj. method
(1) Auto adj. method
1) Set TV in adj. mode using POWER ON 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. (Warm, Medium, Cool)
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 POWER ON.
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 216 Gray 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) Adjustment is performed in COOL, MEDIUM, WARM 3
modes of color temperature.
** G-fix adjustment
Adjust modes (Cool), Fix the G gain to 172 (default data)
and change the others (G/B Gain).
Adjust two modes(Medium / Warm), Fix the one of R/G/B
gain to 192 (default data) and decrease the others.
▪ 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 216 Gray pattern.
▪ 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 (80° ~ 100°)
3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked
using no signal or Full-white pattern.
4.3.6. Reference(White balance adjusmtment coordinate
and color temperature)
▪ Luminance : 206 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Coordinate
Mode
x
Cool 0.271
Medium 0.286
Warm 0.313
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Temp ∆uv
y
0.270 13000 K 0.0000
0.289 9300 K
0.329 6500 K 0.0000
▪ Standard color coordinate and temperature using CA-210(CH 14)
Mode
Cool 0.271 ± 0.002
Medium 0.286 ± 0.003
Warm 0.313 ± 0.002
4.3.7. EDGE & IOL LED White balance table
▪ EDGE LED module change color coordinate because of
aging time.
▪ Apply under the color coordinate table, for compensated
aging time.
▪ (Normal line) Edge & ALEF LED White balance table
- gumi(Mar. ~ Dec.) & Global
Model : (normal line) LGD
Aging
NC
time
4.0
(Min)
1 0-2
2 3-5
3 6-9
4 10-19
5 20-35
6 36-49
7 50-79
8 80-119
9 Over 120
- gumi Winter table(Jan., Fab.)- Gumi producing model use only
Model : (normal line) LGD
Aging
NC
time
4.0
(Min)
1 0-2
2 3-5
3 6-9
4 10-19
5 20-35
6 36-49
7 50-79
8 80-119
9 Over 120
▪ AUO, INX, Sharp, CSOT, BOE (Cool =13000 K)
webOS
X
spec 271
target 278
-3
- 19 -
Coordinate
x y
0.270 ± 0.002
0.289 ± 0.003
0.329 ± 0.002
Cool Medium
x y x y
271 270 286 289
282 289 297 308
281 287 296 306
279 284 294 303
277 280 292 299
275 277 290 296
274 274 289 293
273 272 288 291
272 271 287 290
271 270 286 289
Cool Medium
x y x y
271 270 286 289
286 295 301 314
284 290 299 309
282 287 297 306
279 283 294 302
276 278 291 297
274 275 289 294
273 272 288 291
272 271 287 290
271 270 286 289
Cool Medium
y x y
270 285 293
280 293 299
LGE Internal Use Only
Temp ∆uv
13000 K 0.0000
9300 K -3
6500 K 0.0000
Warm
x y
313 329
324 348
323 346
321 343
319 339
317 336
316 333
315 331
314 330
313 329
Warm
x y
313 329
328 354
326 349
324 346
321 342
318 337
316 334
315 331
314 330
313 329
Warm
x y
313 329
320 339