Read LG 22LV2130 (CHASSIS:LP91U) Service Manual online
5.2.2. Adjustment of White Balance (for Manual adjustment)
(1) Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000.
(2) Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
(3) 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 15 minutes. (If not executed this
step, the condition for W/B may be different.)
heat run longer than 15 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 -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”.
7) Enter the W/B ADJUST Mode.
8) Stick the sensor to the center of the screen and select
3) Change to the AV mode by remote control.
4) Input external pattern (85 % white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”.
7) Enter the W/B ADJUST Mode.
8) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
D
/
E
(CH +/-) key on Remote control.
9) Adjust R/G/B Gain using
F
/
G
(VOL +/-) key on Remote
control.
10) Adjust three modes all (Cool/ Medium/ Warm) : Fix the
one of R/G/B gain and change the others
11) When adjustment is completed, Enter “COPY ALL”.
12) Exit adjustment mode using EXIT key on Remote control.
12) Exit adjustment mode using EXIT key on Remote control.
* CASE
First adjust the coordinate far away from the target value(x, y).
1. x, y > target
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.
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.
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.
ii) Adjust x value by decreasing the G.
(4) Standard color coordinate and temperature when using the
CA100+ or CA210 equipment
1) All Edge LED(except LGD), lamp over 26 inch
under 22 inch.
3) W/B table in process of time which must be applied for
LGD edge LED module(Target color coordinate is
different by aging time)
different by aging time)
- To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : Select Vivid and change Dynamic Contrast :
Off, Dynamic Colour : Off -> Picture Mode change ->
Vivid(User)
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.
Off, Dynamic Colour : Off -> Picture Mode change ->
Vivid(User)
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.
- 13 -
Coordinate
Mode
x
y
Temp
uv∆
Cool
0.269 ± 0.002 0.273 ± 0.002
13,000 K
0.000
Medium
0.285 ± 0.002
0.293 ± 0.002
9,300 K
0.000
Warm
0.313 ± 0.002
0.329 ± 0.002
6,500 K
0.003
Coordinate
Mode
x
y
Temp
uv∆
Cool
0.285 ± 0.002
0.293 ± 0.002
9,300 K
0.000
Medium
0.295 ± 0.002
0.305 ± 0.002
8,000 K
0.000
Warm 0.313
± 0.002
0.329
± 0.002
6,500
K
0.003
Aging Time
Cool
Medium
Warm
GP2R
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
279
288
295
308
319
338
2
3-5
278
286
294
306
318
336
3
6-9
277
285
293
305
317
335
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-149
270
274
286
294
310
324
9
Over 150
269
273
285
293
309
323
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