Read LG 39LN5400 / 39LN5404 / 39LN5406 / 39LN540V (CHASSIS:LD31B / LD36B) Service Manual online
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3.4 Function Check
- Check display and sound
■ Check Input and Signal items.
1) TV
2) AV (SCART / CVBS)
3) COMPONENT (480i)
4) HDMI
* Display and Sound check is executed by Remote control.
<Caution>
Not to push the INSTOP key after completion if the function
inspection.
4. Total Assembly line process
4.1. White Balance adjustment
▪ W/B Equipment condition
CA210 : LED -> CH14, Test signal: Inner pattern(80IRE)
▪ Above 5 minutes H/run in the inner pattern. (“power on” key
of adjust remote control)
▪ If it is executed W/B adjustment in 2~3 minutes H/run, it is
adjusted by Target data.
(For OS LED / Direct LED module)
▪ Normal line
* Aging chamber
* 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 POWER ON →
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)
Mode
Temp
Coordinate spec
Target
Cool
13,000 K X=0.269 (±0.002)
Y=0.273 (±0.002)
X=0.271
Y=0.276
Medium
9,300 K
X=0.285 (±0.002)
Y=0.293 (±0.002)
X=0.287
Y=0.296
Warm
6,500 K
X=0.313 (±0.002)
Y=0.329 (±0.002)
X=0.315
Y=0.332
NetCase4 Aging time
(Min)
Cool
Medium
Warm
X
y
x
y
x
y
271
270
285
293
313
329
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
NetCase4 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
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
192
G Gain jh
Jb
je
00
172
192 192
192
B Gain ji
Jc
jf
00
192
192 172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
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