3.4 Function Check

3.4 Function Check

-Check display and sound

Check Input and Signal items.

1)TV

2)AV (SCART / CVBS)

3)COMPONENT (480i)

4)RGB (PC : 1024 x 768 @ 60hz) (* RGB input : LD21B only support)

5)HDMI

6)PC Audio In (* except LD21A chassis model)

* 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. Adjustment Preparation

▪ W/B Equipment condition CA210

: CCFL/EEFL -> CH9, Test signal: Inner pattern(80IRE) LED -> CH14, Test signal: Inner pattern(80IRE)

▪ If it is executed W/B adjustment in 2~3 minutes H/run, it is adjusted by Target data

Mode

Temp

Coordinate spec

Target

 

Cool

13,000k

X=0.269 (±0.002)

X=0.271

<Test Signal>

 

 

Y=0.273 (±0.002)

Y=0.276

Inner pattern

 

 

X=0.285 (±0.002)

X=0.287

Medium

9,300k

(204gray,

Y=0.293 (±0.002)

Y=0.296

 

 

80IRE)

Warm

6,500k

X=0.313 (±0.002)

X=0.315

 

Y=0.329 (±0.002)

Y=0.332

 

 

 

 

▪ Edge LED W/B Table in process of time (LGD module & 65” AUO module)

 

Aging

 

Cool

Medium

Warm

GP4

time

X

 

y

x

y

x

y

 

(Min)

269

 

273

285

293

313

329

1

0-2

280

 

287

296

307

320

337

2

3-5

279

 

285

295

305

319

335

3

6-9

277

 

284

293

304

317

334

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

80-119

270

 

274

286

294

310

324

9

Over 120

269

 

273

285

293

309

323

*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.

Full White Pattern

CA-210

 

 

COLOR

ANALYZER

TYPE : CA-210

RS-232C Communication

*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

 

 

 

 

RS-232C COMMAND

 

 

CENTER

 

 

 

[CMD ID DATA]

 

MIN

 

(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

<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)

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LG Electronics. Inc. All rights reserved.

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LG Electronics 32LS679C-ZC service manual Total Assembly line process, Function Check, Adjustment Preparation