LG 55EA970T, Service Manual

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Only for training and service purposes
2) Edge LED Models(LA7xxx, LA8XXX, 55LA9600)_aging
chamber
GP3 Aging
time
(Min)
Cool Medium Warm
x y x y x y
270 271 285 293 313 329
1 0-5 280 285 294 308 319 340
2 6-10 276 280 290 303 315 335
3 11-20 272 275 286 298 311 330
4 21-30 269 272 283 295 308 327
5 31-40 267 268 281 291 306 323
6 41-50 266 265 280 288 305 320
7 51-80 265 263 279 286 304 318
8 81-119 264 261 278 284 303 316
9 Over 120 264 260 278 283 303 315
3) ALEF (55LA970T/65LA970T-DA)_nomal line
GP3 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
4) ALEF (55LA970T/65LA970T-DA)_aging chamber
GP3 Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 285 293 313 329
1 20 280 283 295 302 320 327
2 21-25 276 278 291 297 316 322
3 26-30 271 272 286 291 311 316
4 31-35 267 268 282 287 307 312
5 36-40 265 263 280 282 305 307
6 41-50 262 260 277 279 302 304
7 51-80 260 258 275 277 300 302
8 81-119 259 256 274 275 299 300
9 Over 120 259 255 274 274 299 299
■ In the SET applied LED module (LM9600), cause of the
physical characteristics of LED Module, sets are taken a
120 minutes by aging time to stabilize a color coordinates.
So White Balance Control equipments have to get the SET
Aging Time from the SET and then going to control the W/B
by revise color coordinates at each 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,
Clear White : Off
->Picture Mode change : Vidid -> Vivid(User)
(If you miss the upper condition, the coordinates of W/B can be
lower than the spec.)
5.3. Intelligent Sensor Inspection Guide
Step 1. Turn on the TV set.
Step 2. Press “EYE” button on the Adjustment remote controller.
Step 3. Block the Intelligent Sensor module on the front C/A
about 6 seconds.
When the “Sensor Data” is lower than 20, you can see the
“OK” message -> If it doesn’t show “OK” message, the Sensor
Module is defected one.
You have to replace that with a good one.
Step 4. After check the “OK” message come out, take out your
hand from the Sensor module.
-> Check “Sensor Data” value change from “0” to “300” or not.
If it doesn’t change the value, the sensor is also defected
one. You have to replace it.
Green Eye-Check
Sensor Data : 492
BackLight : 100
OK