LG 50LB56 series, Руководство по обслуживанию

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LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
▪ Use only AUO/Sharp/CSOT(Cool temp Spec is 13000 K)
▪ 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
* 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) 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
* After you finished all adjustments, Press "In-start" key and
compare Tool option and Area option value with its BOM, if
it is correctly same then unplug the AC cable. If it is not
same, then correct it same with BOM and unplug AC cable.
For correct it to the model's module from factory Jig model.
* Push the "IN STOP" key after completing the function
inspection. And Mechanical Power Switch must be set
“ON”.
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
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12 EDID D/L
13. Sub B/C
14. Ext. Input Adjust
Whit Balance
Color Temp. ◄ ►
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
To Set
Cool
172
172
192
64
64
64
ON
100
Full White Pattern
CA-210
COLOR
ANALYZER
TYPE : CA-210
RS-232C Communication
Cool Medium Warm
X y x y x y
spec 271 270 285 293 313 329
target 275 276 289 299 317 335
Model information W/B information
Model Module Panel Backlight Type Using W/B table
All All All Direct LED O