32LS3000, 32LS301C (CHASSIS:LP24Q) - LG TV Service Manual (repair manual). Page 12

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4.3. Adjustment of White Balance
(for Manual adjustment)
■  Color  analyzer(CA100+,  CA210)  should  be  used  in  the 
calibrated ch by CS-1000
■  Operate the zero-calibration of the CA100+ or CA-210, then 
stick sensor to the module when adjusting.
■  For manual adjustment, it is also possible by the following 
sequence.
1)  Select  white  pattern  of  heat-run  by  pressing  “POWER 
ON” key on remote control for adjustment then operate 
heat  run  longer  than  5  minutes.  (If  not  executed  this 
step, the condition for W/B may be different.)
2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5)  Push  the ADJ  key  two  times  (entering  White  Balance 
mode) → Enter “0413” (Password)
6)  Stick the sensor to the center of the screen and select 
each  items  (Red/Green/Blue  Gain  and  Offset)  using 
▲/▼(CH +/-) key on R/C..
7) Adjust R/ G/ B Gain using ◄/►(VOL +/-) key on R/C.
8)  Adjust three modes all (Cool / Medium / Warm) : Fix the 
one of R/G/B gain and change the others
9)  When  adjustment  is  completed,  Exit  adjustment  mode 
using EXIT key on R/C.
* CASE
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
IF Model is POLA Model (LS3000,LS3150)
* CASE
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)  Fix G gain to “AC” and Adjust R gain and B gain(In case 
of mostly Blue Gain Saturation)
2) When B gain > FF, Release Fixed G gain and Readjust.
  
* 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
■  Standard color coordinate and temperature when using the 
CA100+  or  CA210  equipment  (Small  size  inch’s  color 
coordinate is different from others, So use below table)
1) All Edge LED, All Direct LED and Lamp over 26” 
2) 22” TN Edge LED
(Small  size  inch’s  color  coordinate  is  different  from 
others, so use below table)
3) 22” Lamp (CMI & THTF)
(Small  size  inch’s  color  coordinate  is  different  from 
others, So use below table)
To check the Coordinates of White Balance, you have to 
measure at the below conditions.
Picture Mode : Vivid(User)
Dynamic Contrast : Off , Dynamic Colour : Off
(If you miss the upper condition, the coordinates of W/B 
can be lower than the spec.)
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.280±0.002
0.283±0.002
9,300 K
0.0000 
Medium
0.290±0.002
0.295±0.002
8,000 K
0.0000 
Warm
0.308±0.002
0.319±0.002
6,500 K
0.0
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.287 ± 0.002
0.296 ± 0.002
9,300 K
0.000
Medium 0.297 ± 0.002
0.308 ± 0.002
8,000 K
0.000
Warm
0.315 ± 0.002
0.332 ± 0.002
6,500 K
0.003
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.271±0.002
0.276±0.002
13,000 K
0.000
Medium
0.287±0.002
0.296±0.002
9,300 K
0.000
Warm
0.315±0.002
0.332±0.002
6,500 K
0.003
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