LG 32LM620T, Service Manual

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LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
▪ Adjustment condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to
isolate adj. area into dark surrounding.
2) Probe location
: Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface.(80° ~ 100°)
3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked
using no signal or Full-white pattern.
4.2.6. Reference(White balance adjusmtment coordinate
and color temperature)
▪ Luminance : 204 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
▪ Standard color coordinate and temperature using CA-210(CH 14)
4.2.7. LED White balance table
- EDGE LED module change color coordinate because of
aging time.
- Apply under the color coordinate table, for compensated
aging time.
- ALEF(LM76 series)
4.3. EYE-Q function check
(1) Turn on TV.
(2) Press EYE key of Adjustment remote control.
(3) Cover the Eye Q II sensor on the front of the using your
hand and wait for 6 seconds.
(4) Confirm that R/G/B value is lower than 10 of the "Raw
Data (Sensor data, Back light)". If after 6 seconds, R/G/B
value is not lower than 10, replace Eye Q II sensor.
(5) Remove your hand from the Eye Q II sensor and wait for 6
seconds.
(6) Confirm that "ok" pop up. If change is not seen, replace
Eye Q II sensor.
4.4. Local Dimming Function Check
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.
4.5. Magic Motion Remote control test
(1) Equipment : RF Remote control for test, IR-KEY-Code
Remote control for test
(2) You must confirm the battery power of RF-Remote control
before test(recommend that change the battery per every lot)
(3) Sequence (test)
1) if you select the "Start(Wheel)" key on the Adjustment
remote control, you can pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select
the "Wheel" key on the Adjustment remote control.
3) You must remove the pairing with the TV Set by select
"Mute" key on the Adjustment remote control
Mode
Coordinate
Temp ∆uv
x y
Cool 0.269 0.273 13000 K 0.0000
Medium 0.285 0.293 9300 K 0.0000
Warm 0.313 0.329 6500 K 0.0000
Mode
Coordinate
Temp ∆uv
x y
Cool 0.269 ± 0.002 0.273 ± 0.002 13000 K 0.0000
Medium 0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000
Warm 0.313 ± 0.002 0.329 ± 0.002 6500 K 0.0000
GP4
Aging
time
(Min)
Cool Medium Warm
X y x y x y
269 273 285 293 313 329
1 0-2 283 293 299 313 320 339
2 3-5 282 291 298 311 319 337
3 6-9 281 290 297 310 318 336
4 10-19 279 289 295 309 316 335
5 20-35 277 284 293 304 314 330
6 36-49 274 279 290 299 311 325
7 50-79 271 277 287 297 308 323
8 80-119 270 274 286 294 307 320
9 Over 120 269 273 285 293 306 319