LG 42LA6800-CA (CHASSIS:LC33B) Service Manual ▷ View online
LGE TV Research Lab.
Establish: 12. 05. 21
LC33B Adjust Specification
C2-2230
19/ 37
Reform: 12. 02. 03
LG Electronics
decrease the others
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of color temperature.
▪ If internal pattern is not available, use RF input. In EZ Adj. menu 7.White Balance, you can
▪ 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 204 Gray pattern.
adjust using RF signal in 204 Gray pattern.
※
CASE Cool
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
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 172
Adjust R Gain and B Gain ( In Case of Mostly Blue Gain Saturation )
2.When B Gain > 255, Release Fixed G Gain and Readjust
How to adjust
1.Fix G gain to 172
Adjust R Gain and B Gain ( In Case of Mostly Blue Gain Saturation )
2.When B Gain > 255, 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
1. x, y 〉target
ⅰ
) Decrease the R, G.
2. x, y〈 target
ⅰ) First decrease the B gain,
ⅱ) The one value is bigger than the target then the other one should be not much more
ⅰ) First decrease the B gain,
ⅱ) The one value is bigger than the target then the other one should be not much more
bigger than target.
Ⅲ
) In case that we take x off, we also take R (G-gain fix)
In other case that we take y off, we also take G (R-gain fix)
3. x 〉target , y〈 target
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
LGE TV Research Lab.
Establish: 12. 05. 21
LC33B Adjust Specification
C2-2230
20/ 37
Reform: 12. 02. 03
LG Electronics
ⅰ
) First decrease B, so make x a little more than the target.
ⅱ
) Adjust y value by decreasing the G
▪ Adj. condition and cautionary items
1) Lighting condition in surrounding area
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
- LCD: Color Analyzer (CA-210) probe should be within 10cm and perpendicular of the
module surface (80°~ 100°)
5.3.6 Reference (White Balance Adj. coordinate and color temperature)
▪ Luminance: 204 Gray
▪ Standard color coordinate and temperature using CS-1000 (over 26 inch)
▪ Luminance: 204 Gray
▪ Standard color coordinate and temperature using CS-1000 (over 26 inch)
Mode
Coordinate
Temp
△
uv
x
y
Cool
0.271
0.270
13000K
0.0000
Medium
0.285
0.293
9300K
0.0000
Warm
0.313
0.329
6500K
0.0000
▪ Standard color coordinate and temperature using CA-210(CH 14)
Mode
Coordinate
Temp
△
uv
x
y
Cool
0.271±0.002 0.270±0.002 13000K
0.0000
Medium
0.285±0.002
0.293±0.002
9300K
0.0000
Warm
0.313±0.002
0.329±0.002
6500K
0.0000
5.3.7 LED White balance table
▪ Edge LED module change color coordinate because of aging time
▪ apply under the color coordinate table, for compensated aging time
Netcast4
0_wb_table_M P_V1 2
* Normal Line
Except for winter time for Gumi-line (3 월~12 월) & Global
model:
(normal line)LGD, CMI 사용(LN5xxx, LA6xxx, LA7xxx, LA8xxx)
NC4.0
Aging
time
Cool
Medium
Warm
(Min)
x
y
x
y
x
y
271
270
285
293
313
329
LGE TV Research Lab.
Establish: 12. 05. 21
LC33B Adjust Specification
C2-2230
21/ 37
Reform: 12. 02. 03
LG Electronics
1
0-2
281
287
295
310
320
342
2
3-5
280
285
294
308
319
340
3
6-9
278
284
292
307
317
339
4
10-19
276
281
290
304
315
336
5
20-35
275
277
289
300
314
332
6
36-49
274
274
288
297
313
329
7
50-79
273
272
287
295
312
327
8
80-119
272
271
286
294
311
326
9
Over 120
271
270
285
293
310
325
Aging line
model:
(aging chamber)LGD, CMI 사용(LN5xxx, LA6xxx, LA7xxx, LA8xxx)
NC4.0
Aging
time
Cool
Medium
Warm
(Min)
x
y
x
y
x
y
271
270
286
289
314
318
1
0-5
280
285
295
304
320
329
2
6-10
276
280
291
299
316
324
3
11-20
272
275
287
294
312
319
4
21-30
269
272
284
291
309
316
5
31-40
267
268
282
287
307
312
6
41-50
266
265
281
284
306
309
7
51-80
265
263
280
282
305
307
8
81-119
264
261
279
280
304
305
9
Over 120
264
260
279
279
304
304
for winter time(1 월, 2 월) for Gumi-line & except for cinema screen model.
model:
(normal line)LGD, CMI 사용(LN5xxx, LA6xxx, LA7xxx, LA8xxx)
NC4.0
Aging
time
Cool
Medium
Warm
(Min)
x
y
x
y
x
y
271
270
286
289
314
318
1
0-2
283
292
298
311
323
336
2
3-5
282
290
297
309
322
334
3
6-9
280
288
295
307
320
332
LGE TV Research Lab.
Establish: 12. 05. 21
LC33B Adjust Specification
C2-2230
22/ 37
Reform: 12. 02. 03
LG Electronics
4
10-19
277
284
292
303
317
328
5
20-35
275
279
290
298
315
323
6
36-49
274
275
289
294
314
319
7
50-79
273
272
288
291
313
316
8
80-119
272
271
287
290
312
315
9
Over 120
271
270
286
289
311
314
Cinema screen model’s table for Gumi line uses Global table.
AUO, Sharp, CSOT 사용모델(Cool 이 13000K 가 SPEC 인
경우)
경우)
cool
med
warm
x
y
x
y
x
y
spec
271
270
285
293
313
329
target
275
276
289
299
317
335
5.5 Local Dimming Function Check(not for LA6200/6250&LN5700 series)
Step 1) Turn on TV
Step 2) Press “TILT” key on the Adj. R/C.
Step 3) At the Local Dimming mode, module Edge Backlight moving right to left
Back light of IOP module moving
Step 4) confirm the Local Dimming mode
Step 5) Press “exit” Key
5.6 Magic Remocon test(Not for LA65/62/LN5700 series)
Local Dimming Demo
(Edge LED Model)
Click on the first or last page to see other 42LA6800-CA (CHASSIS:LC33B) service manuals if exist.