LG 43UH67 Series Service Manual page 18

4.2.5. 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
- PDP: Color Analyzer (CA-100, CA-100+, CA210) probe
should be firmly attached to the Module
- LCD: Color Analyzer (CA-210) probe should be within
10cm 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.
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.2.6. 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
▪ Standard color coordinate and temperature using CA-210(CH 14)
Mode
x
Cool 0.271±0.002
Medium 0.286±0.002
Warm 0.313±0.002
4.2.7. EDGE & IOL LED White balance table
▪ Apply under the color coordinate table, for compensated
aging time.
-gumi & Global
Model : (normal line)LGD
Aging
time x
(Min)
271
1 0-2 282
2 3-5 281
3 6-9 279
4 10-19 277
5 20-35 275
6 36-49 274
7 50-79 273
8 80-119 272
9 Over 120 271
(*) AUO, INX, Sharp, CSOT, BOE model (Cool spec : 13000K)
– 40UH63**-Z*/55UH65**-Z*
webOS Cool
x
271
Target 278
- 18 -
Temp
y
0.270 13000K
0.289 9300K
0.329 6500K
Coordinate
Temp
y
0.270±0.002 13000K
0.289±0.002 9300K
0.329±0.002 6500K
Cool Medium
y x y
270 286 289
289 297 308
287 296 306
284 294 303
280 292 299
277 290 296
274 289 293
272 288 291
271 287 290
270 286 289
Medium
y x y x
270 285 293 313
280 293 299 320
LGE Internal Use Only
∆uv
0.0000
0.0000
0.0000
∆uv
0.0000
0.0000
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
y
329
339