LG Electronics 32LT380H-ZA Total Assembly line process, ADC Process, Adjustment Preparation

Page 11
3.1.ADC Process

3.1.ADC Process

(1)ADC

-Enter Service Mode by pushing "ADJ" key,

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

 

EZ ADJUST

ADC Calibration

0.

Tool Option1

ADC Comp 480i

NG

1.

Tool Option2

ADC Comp 1080p

NG

2.

Tool Option3

ADC RGB

NG

3.

Tool Option4

 

 

4.

Tool Option 5

Start

Reset

5.Country Group

6.Area Option

7. ADC Calibration

8.White Balance

9.10 Point WB

10.Test Pattern

11.EDID D/L

12.Sub B/C

13.Touch Sensitivity Setting

<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)

NO

Item

CMD 1

CMD 2

Data 0

 

 

 

 

 

 

 

 

Enter

Adjust

A

A

0

0

When transfer the ‘Mode In’,

Adjust MODE

‘Mode In’

Carry the command.

 

 

 

 

ADC adjust

ADC Adjust

A

D

1

0

Automatically adjustment

(The use of a internal pattern)

 

 

 

 

 

 

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.

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)

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 aging time (Only LGD Edge LED Module except AUO, CMI, IPS Module)

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

 

Aging

 

Cool

Medium

Warm

GP4

time

X

 

y

x

y

x

y

 

(Min)

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

*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.

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.

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.

Copyright ©

LG Electronics. Inc. All rights reserved.

- 11 -

LGE Internal Use Only

Only for training and service purposes

 

 

Image 11
Contents http//biz.lgservice.com READ THE SAFETY PRECAUTIONS IN THIS MANUALhttp//aic.lgservice.com http//eic.lgservice.comSPECIFICATION CONTENTSSAFETY PRECAUTIONS SERVICING PRECAUTIONSIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSRemoval IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application rangeHDMI1-DTV/DVI RGB InputRGB-PC AnalogD-SUB 15PIN5.2. RGB Input PC 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR PCDVI 5.3. HDMI InputPC/DTV1. Application Range ADJUSTMENT INSTRUCTIONBoot file Download After downloading, have to adjust Tool Option again3.2. Function Check 4. Total Assembly line process4.1. Adjustment Preparation 3.1. ADC ProcessManual W/B process using adjust Remote control 4.4. EDID data4.2. DDC EDID Write RGB 128Byte 4.3 DDC EDID Write HDMI 256Byte4.6.2. HI-POT auto-check 4.5. Outgoing condition Configuration4.6. HI-POT Test 4.6.1. HI-POT auto-check preparation5.3. Method & notice 5.1. Signal Table5. Model name & Serial number D/L 5.2. Comand SetCI+ Key Value 6.1. Download Procedure6. CI+ Key Download method Half BLOCK DIAGRAMS7LR All rights reservedEXPLODED VIEW Copyright 2012 LG Electronics. Inc. All rights reserved EMEA INTERACTIVEGP4MSTAR 2011 . 08OLED THERMAL Step Up regulator 3 . 3V to 5VMAX 250mA+3.3VNormal FROM LIPS & POWER B/DPowerDET +1.5VDDRNTP-7500L IC501CONTROL IR & LED MIRROR Pol - change 51Pin LVDS Connector30Pin LVDS Connector For HD 60HzNormal For FHD 60/120HzSIDEHDMI HDMI1For CEC HDMI20 . 3 3 u F USBDIODES RGB/SPDIF/PC/HP/USBS7LRDIVXMS10 W25Q80BVSSIG IC1300MX25L8006EM2I-12G IC1300-*1SI2156DVB1INPUTH P4RGLOBALTUNERBLOCKSI2176ATSC1INPUTH PILG1001 A2 IC1501LGDT1001 Full Scart/ Comp1 EXTSPK OUT UART/I2C SWITCHEXTSPK AMP EXTSPKCONTROL/DEBUGREAL TIME CLOCKRTC EXTERNALPOWER OUT 5V/12VOption name of this page CI SLOT because of Hong Kong CI RegionSMD GASKET Page 1. Trouble Shooting Contents of LCD TV Standard Repair ProcessA2 Check Power Board 24V,12V,3.5V output A. Video errorMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable LCD TVBoard voltages of PowerCheck various No VideoSignal strength Normal over 30% Signal Quality Normal over 30% A. Picture ProblemBy using Digital signal level meter By using Diagnostics menu on OSD Menu→Setup→Manual TuningLink Cable Check color by input -External Input COMPONENT -RGB※ Check and replaceCheck color condition by input -External Input -Component RGB Connect other external device and cableExternal device screen error-Color error Vertical/Horizontal bar, residual image, light spotCheck Power On ‘”High” B. Power errorStand-By Red Operating white Check Power LEDPOWEROFFCPUABNORMAL Check Power Off Starusinstart menuIf Power Off mode is not displayed Check Power B/D voltage POWEROFFABNORMAL1Check audio B+ C. Audio errorPower Board Check user menu Speaker offCheck audio B+ Voltage 20V or In case of External Input signal error Check and fix external deviceOutput signal D. General Function Problem1. Remote controlR/C operating error Check & Repair Cable connection Connector solderS/W Version D. Function errorCheck input signal Y Check technical Signal information input? - Fix informationIdentify nose type E. NoiseF. Exterior defect Standard Repair Process Detail Technical Manual A. Video errorVideo error, video lag/stopMENU -Æ red keycustomer support -Æ signal test -Æ select channel When the signal is strong, use the attenuator -10dB, -15dB, -20dB etcVersion 1. Checking method for remote controller for adjustmentPress the IN-START with the remote controller for adjustment ALL MODELSYou can view 6 types of patterns using the ADJ Key A. Video errorColor errorAppendix Exchange T-Con Board Appendix Exchange T-Con Board No picture/Sound Ok A - 3/5 Appendix Exchange PSULED driverNo Light Dim LightPress damage Appendix Exchange the ModuleUn-repairable Cases In this case please exchange the module Panel Mura, Light leakageUn-repairable Cases In this case please exchange the module Entry method 1. Press the IN-START button of the remote controller for adjustment2. Check the entry into adjustment item B. Power error Off when on, off whiling viewing2. Select the AUDIO function of the Menu C. Audio errorNo audio/Normal video1. Press the MENU button on the remote controller Checking method