LG 32LX330C Series, Service Manual

Page: 13 / 55

- 13 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
▪ Aging chamber (LGD/CMI)
▪ Use only AUO/Sharp/CSOT (Cool temp Spec is 13000K)
▪ W/B information
* Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C P-ONLY → Enter the
mode of White-Balance, the pattern will come out.
* Auto-control interface and directions
(1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10 lux).
(2) Adhere closely the Color analyzer(CA210) to the module
less than 10 cm distance, keep it with the surface of the
Module and Color analyzer's prove vertically.(80° ~ 100°).
(3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using 'no signal' or 'POWER ONLY' or the others, check
the back light on.
▪ Auto adjustment Map(using RS-232C to USB cable)
RS-232C COMMAND
[CMD ID DATA]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
<Caution>
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.(When R/G/B Gain are all
C0, it is the FULL Dynamic Range of Module)
* Manual W/B process using adjust Remote control.
▪ After enter Service Mode by pushing "ADJ" key,
▪ Enter White Balance by pushing "► " key at "9. White
Balance".
* CASE Cool Mode
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) In case G gain more than 172
Adjust R Gain and B Gain less than 192
2) If the G gain value be adjusted down to 172
One of the R/B Gain is 254
3) If G Gain is 172 , More than one of R/B Gain is to be
between 192~254
Aging time
(Min)
Cool Medium Warm
x y x y x y
spec 271 270 286 289 313 329
target 278 280 293 299 320 339
Full White Pattern
CA-210
COLOR
ANALYZER
TYPE : CA-210
RS-232C Communication
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool Mid Warm Cool Mid Warm
R Gain jg Ja jd 00 172 192 192 254
G Gain jh Jb je 00 172 192 192 192
B Gain ji Jc jf 00 192 192 172 254
R Cut 64 64 64 128
G Cut 64 64 64 128
B Cut 64 64 64 128
NC5.0
Aging time
(Min)
Cool Medium Warm
x y x y x y
271 270 285 293 313 329
1 0-2 280 285 294 308 319 340
2 3-5 276 280 290 303 315 335
3 6-9 272 275 286 298 311 330
4 10-19 269 272 283 295 308 327
5 20-35 267 268 281 291 306 323
6 36-49 266 265 280 288 305 320
7 50-79 265 263 279 286 304 318
8 80-119 264 261 278 284 303 316
9 Over 120 264 260 278 283 303 315
Model information W/B information
Chassis
or Model
Module Panel
Backlight
Type
Using W/B table
22/28LX** All All Edge LED X
60LX** Sharp Sharp Edge LED X
Ohters LGD LGD
Direct LED
or
Edge LED
O