LG Electronics 22LT640H-ZA 4. Total Assembly line process

Only for training and service purposes

3.1. ADC Process

(1) ADC

- Enter Service Mode by pushing "ADJ" key,

- Enter Internal ADC mode by pushing "►" key at "7. ADC

Calibration".

<Caution> Using "P-ONLY" key of the Adjustment remote

control, power on TV.

If there is no Component Input, disappear “ADC Comp” message.

* ADC Calibration Protocol (RS232)

Adjust Sequence

▪ aa 00 00 [Enter Adjust Mode]

▪ xb 00 40 [Component1 Input (480i)]

▪ ad 00 10 [Adjust 480i Comp1]

▪ xb 00 60 [RGB Input (1024*768)] (only LD21B)

▪ ad 00 10 [Adjust 1024*768 RGB] (only LD21B)

▪ aa 00 90 End Adjust mode

* Required equipment : Adjustment remote control.

3.2. Function Check

3.2.1. Check display and sound

■ Check Input and Signal items. (cf. work instructions)

1. TV

2. AV

3. COMPONENT (480i)

4. RGB (PC : 1024 x 768 @ 60hz)

5. HDMI

6. PC Audio In

* Display and Sound check is executed by Remote controller

Caution : Not to push the INSTOP KEY after completion if the

function inspection.

4. Total Assembly line process

4.1. Adjustment Preparation

▪ W/B Equipment condition

CA210

: CCFL/EEFL -> CH9, Test signal: Inner pattern(80IRE)

LED -> CH14, Test signal: Inner pattern(80IRE)

▪ Above 5 minutes H/run in the inner pattern. (“power on” key

of adjust remote control)

▪ Edge LED W/B Table in process of aging time (Only LGD

Edge LED Module except AUO, CMI, IPS Module)

CA210 : CH 14, Test signal : Inner pattern (80IRE)

* 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.

EZ ADJUST

0. Tool Option1

1. Tool Option2

2. Tool Option3

3. Tool Option4

4. Tool Option 5

5. Country Group

6. Area Option

7. ADC Calibration ඖ

8. White Balance

9. 10 Point WB

10. Test Pattern

11. EDID D/L

12. Sub B/C

13. Touch Sensitivity Setting

ADC Calibration

ADC Comp 480i NG

ADC Comp 1080p NG

ADC RGB NG

Start Reset

NO Item CMD 1 CMD 2 Data 0

Enter

Adjust MODE

Adjust

‘Mode In’ A A 0 0 When transfer the ‘Mode In’,

Carry the command.

ADC adjust ADC Adjust A D 1 0 Automatically adjustment

(The use of a internal pattern)

Mode Temp Coordinate spec

Cool 9,300 K X=0.285 (±0.002)

Y=0.293 (±0.002) <Test Signal>

Inner pattern

(204gray,

80IRE)

Medium 8,000 K X=0.295 (±0.002)

Y=0.305 (±0.002)

Warm 6,500 K X=0.313 (±0.002)

Y=0.329 (±0.002)

GP4

Aging

time

(Min)

Cool Medium Warm

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

Full White Pattern CA-210

COLOR

ANALYZER

TYPE : CA-210

RS-232C Communication