LG 47LW470S-ZB Schematic

LED LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LD12P

MODEL : 47LW470S 47LW470S-ZB

North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL67002346 (1107-REV00)

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Only for training and service purposes

CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ................................................................................. 3

SPECIFICATION ....................................................................................... 4

ADJUSTMENT INSTRUCTION .............................................................. 10

BLOCK DIAGRAM.................................................................................. 17

EXPLODED VIEW .................................................................................. 18

SCHEMATIC CIRCUIT DIAGRAM ..............................................................

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Only for training and service purposes

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 MΩ and 5.2 MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.

Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to

0.5 mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument’s exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc.

AC Volt-meter

When 25A is impressed between Earth and 2nd Ground for 1 second, Resistance must be less than 0.1

*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15 uF

Ω

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Only for training and service purposes

SPECIFICATION

NOTE : Specifications and others are subject to change without notice for improvement

1. Application range

This specification is applied to the LCD TV used LD12P chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

1) Temperature: 25 ºC ± 5 ºC(77 ºF ± 9 ºF), CST: 40 ºC ± 5 ºC

2) Relative Humidity : 65 % ± 10 %

3) Power Voltage : Standard input voltage (AC 100-240 V~, 50 / 60 Hz)

* Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM.

5) The receiver must be operated for about 5 minutes prior to

the adjustment.

3. Test method

1) Performance: LGE TV test method followed

2) Demanded other specification

- Safety : CE, IEC specification

- EMC :CE, IEC

No. Item Specification Remarks

1 Market EU(PAL Market-36Countries) DTV & Analog (Total 36 countries)

DTV (MPEG2/4, DVB-T) : 31 countries

(England/Italy/Germany/France/Spain/Sweden/Finland/Netherlands/Belgium/Luxemburg/

Greece/Denmark/Czech/Austria /Hungary/Swiss/Croatia/Turkey/Norway/Slovenia/Poland/

Ukraine/Portugal/Ireland/Moroco/Latvia/Estonia/Lithania/Rumania/Russia/Slovakia)

DTV (MPEG2/4, DVB-T2): 5 countries

(England/Sweden/Finland/Denmark/Norway)

DTV (MPEG2/4, DVB-C): 10 countries

(Sweden/Finland/Denmark/Norway/Austria/Swiss/Germany/Netherlands/Hungary/Slovenia)

DTV (MPEG2/4, DVB-S) : 31 countries

Albania/Austria/Belgium/Bosnia/Bulgaria/Croatia/Czech/Estonia/France/Germany/Greece/

Hungary/Ireland/Italy/Kazakhstan/Latvia/Lithuania/Luxembourg/Morocco/Netherlands/Poland/

Portugal/Romania/Russia/Serbia/Slovenia/Spain/Slovakia/Switzerland/Turkey/Ukraine

Analog Only - 5 countries

(Bosnia/Serbia/Bulgaria/Albania/Kazakhstan)

Supported satellite : 22 satellites

HISPASAT 1C/1D, ATLANTIC BIRD 2, NILESAT 101/102, ATLANTIC BIRD 3, AMOS 2/3,

THOR 5/6, IRIUS 4, EUTELSAT-W3A, EUROBIRD 9A, EUTELSAT-W2A, HOTBIRD 6/8/9,

EUTELSAT-SESAT, ASTRA 1L/H/M/KR, ASTRA 3A/3B, BADR 4/6, ASTRA 2D, EUROBIRD 3,

EUTELSAT-W7, HELLASSAT 2, EXPRESS AM1, TURKSAT 2A/3A, INTERSAT10

2 Broadcasting system 1) PAL-BG - DVB-T2/S is supported in specific models.

2) PAL-DK 1. DVB-T2 : Model name : xxxxxxxT

3) PAL-I/I’ 2. DVB-S : Model name : xxxxxxxS

4) SECAM DK,BG,I,L/L’ - SECAM L/L’ is not supported in DVB-T2 models.

5) DVB-T/C

6) DVB-T2

7) DVB-S

4. Model General Specification

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Only for training and service purposes

No. Item Specification Remarks

3 Receiving system Analog : Upper Heterodyne

G DVB-T

Digital : COFDM , QAM - Guard Interval(Bitrate_Mbit/s)

1/4, 1/8, 1/16, 1/32

- Modulation : Code Rate

QPSK : 1/2, 2/3, 3/4, 5/6, 7/8

16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

G DVB-C

- Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s

- Modulation : 16QAM, 64-QAM, 128-QAM and 256-QAM

G DVB-T2

- Guard Interval(Bitrate_Mbit/s)

1/4,1/8,1/16,1/32,1/128,19/128,19/256,

- Modulation : Code Rate

QPSK : 1/2, 2/5, 2/3, 3/4, 5/6

16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

64-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

256-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

G DVB-S

- Symbolrate

DVB-S2 (8PSK / QPSK) : 2 ~ 45Msymbol/s

DVB-S (QPSK) : 2 ~ 45Msymbol/s

- viterbi

DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8

DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10

4 Scart Jack (1EA) PAL, SECAM Scart Jack is Full scart and support RF-OUT(analog & DTV)

Not support DTV Auto AV.

5 Video Input RCA(1EA) PAL, SECAM, NTSC 4System : PAL, SECAM, NTSC, PAL60

6 Component Input(1EA) Y/Cb/Cr, Y/Pb/Pr

7 RGB Input RGB-PC Analog(D-SUB 15PIN)

8 HDMI Input (3EA) HDMI1-DTV (DVI) PC(HDMI version 1.3)

HDMI2-DTV Support HDCP

HDMI3-DTV

9 Audio Input (3EA) RGB/DVI Audio, Component, AV L/R Input

10 SDPIF out (1EA) SPDIF out

11 Earphone out (1EA) Antenna, AV1, AV2, AV3, Component,

RGB, HDMI1, HDMI2, HDMI3, USB

12 USB (1EA) EMF JPEG, MP3

For Service (download)

DivX HD

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Only for training and service purposes

5. Component Video Input (Y, CB/PB, CR/PR)

No.

Specification

Remark

Resolution H-freq(kHz) V-freq(Hz)

1. 720x480 15.73 60.00 SDTV,DVD 480i

2. 720x480 15.63 59.94 SDTV,DVD 480i

3. 720x480 31.47 59.94 480p

4. 720x480 31.50 60.00 480p

5. 720x576 15.625 50.00 SDTV,DVD 625 Line

6. 720x576 31.25 50.00 HDTV 576p

7. 1280x720 45.00 50.00 HDTV 720p

8. 1280x720 44.96 59.94 HDTV 720p

9. 1280x720 45.00 60.00 HDTV 720p

10. 1920x1080 31.25 50.00 HDTV 1080i

11. 1920x1080 33.75 60.00 HDTV 1080i

12. 1920x1080 33.72 59.94 HDTV 1080i

13. 1920x1080 56.250 50 HDTV 1080p

14. 1920x1080 67.5 60 HDTV 1080p

No.

Specification

Proposed Remarks

Resolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1. 720*400 31.468 70.08 28.321 For only DOS mode

2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60 Hz, 852*480 60 Hz

-> 640*480 60 Hz Display

3. 800*600 37.879 60.31 40.00 VESA

4. 1024*768 48.363 60.00 65.00 VESA(XGA)

5. 1360*768 47.72 59.8 84.75 WXGA

6. 1920*1080 66.587 59.93 138.625 WUXGA FHD model

6. RGB Input (PC)

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Only for training and service purposes

7. HDMI Input

(1) DTV Mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

1. 720*400 31.468 70.08 28.321 HDCP

2. 640*480 31.469 59.94 25.17 VESA HDCP

3. 800*600 37.879 60.31 40.00 VESA HDCP

4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP

5. 1360*768 47.72 59.8 84.75 WXGA HDCP

6. 1280*1024 63.595 60.0 108.875 SXGA HDCP/FHD model

7. 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model

(2) PC Mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

1. 720*480 31.469 / 31.5 59.94 / 60 27.00 / 27.03 SDTV 480P

2. 720*576 31.25 50 54 SDTV 576P

3. 1280*720 37.500 50 74.25 HDTV 720P

4. 1280*720 44.96 / 45 59.94 / 60 74.17 / 74.25 HDTV 720P

5. 1920*1080 33.72 / 33.75 59.94 / 60 74.17 / 74.25 HDTV 1080I

6. 1920*1080 28.125 50.00 74.25 HDTV 1080I

7. 1920*1080 26.97 / 27 23.97 / 24 74.17 / 74.25 HDTV 1080P

8. 1920*1080 33.716 / 33.75 29.976 / 30.00 74.25 HDTV 1080P

9. 1920*1080 56.250 50 148.5 HDTV 1080P

10. 1920*1080 67.43 / 67.5 59.94 / 60 148.35 / 148.50 HDTV 1080P

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Only for training and service purposes

8. 3D Mode

(1) HDMI Input (1.4a)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing

2 1280*720 89.9 / 90 59.94/60 148.35/148.5 HDTV 720P Frame packing

3 1280*720 75 50 148.5 HDTV 720P Frame packing

4 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom

5 1920*1080 56.3 50 148.5 HDTV 1080P Side by Side(half), Top and bottom

6 1280*720 45 60 74.25 HDTV 720P Side by Side(half), Top and Bottom

7 1280*720 37.5 50 74.25 HDTV 720P Side by Side(half), Top and Bottom

8 1920*1080 33.7 60 74.25 HDTV 1080i Side by Side(half), Top and Bottom

9 1920*1080 28.1 50 74.25 HDTV 1080i Side by Side(half), Top and Bottom

10 1920*1080 27 24 74.25 HDTV 1080P Side by Side(half), Top and Bottom

11 1920*1080 33.7 30 89.1 HDTV 1080P Side by Side(half), Top and Bottom

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1280*720 45.00 60.00 74.25 HDTV 720P Side by Side, Top & Bottom

2 1280*720 37.500 50 74.25 HDTV 720P Side by Side, Top & Bottom

3 1920*1080 33.75 60.00 74.25 HDTV 1080I Side by Side, Top & Bottom

4 1920*1080 28.125 50.00 74.25 HDTV 1080I Side by Side, Top & Bottom

5 1920*1080 27.00 24.00 74.25 HDTV 1080P Side by Side, Top & Bottom,

Checkerboard

6 1920*1080 33.75 30.00 74.25 HDTV 1080P Side by Side, Top & Bottom,

Checkerboard

7 1920*1080 67.50 60.00 148.5 HDTV 1080P Side by Side, Top & Bottom,

Checkerboard, Single Frame Sequential

8 1920*1080 56.250 50 148.5 HDTV 1080P Side by Side, Top & Bottom,

Checkerboard, Single Frame Sequential

(2) HDMI Input (1.3)

(3) RF 3D Input(DTV)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1280*720 37.500 50 74.25 HDTV 720P Side by Side, Top & Bottom

2 1920*1080 28.125 50 74.25 HDTV 1080I Side by Side, Top & Bottom

(4) USB Input

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed

1 1920*1080 33.75 30.000 74.25 Side by Side HDTV 1080P

Top & Bottom

Checkerboard

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Only for training and service purposes

(7) 3D Input mode

(5) RGB-PC Input

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side, Top & Bottom

(6) DLNA

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1920*1080 33.75 30 HDTV 1080P Side by Side, Top & Bottom,

Checkerboard

No. Side by Side Top & Bottom Checkerboard Single Frame Sequential Frame Packing

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Only for training and service purposes

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LCD TV with LD12P chassis.

2. Designation

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed in the circumstance of

25 ºC ± 5 ºC of temperature and 65 % ± 10 % of relative

humidity if there is no specific designation. (4) The input voltage of the receiver must keep AC 100-240

V~, 50 / 60Hz. (5) The receiver must be operated for about 5 minutes prior to

the adjustment when module is in the circumstance of over

15.

In case of keeping module is in the circumstance of 0 °C, it should be placed in the circumstance of above 15 °C for 2 hours

In case of keeping module is in the circumstance of below 20 °C, it should be placed in the circumstance of above 15 °C for 3 hours.

[Caution] When still image is displayed for a period of 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area.

3. Automatic Adjustment

3.1. MAC Address

(1) Equipment & Condition

- Play file: Serial.exe

- MAC Address edit

- Input Start / End MAC address

(2) Download method

1) Communication Prot connection

Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port

2) MAC Address & CI+ key & Widevine key download

- Com 1,2,3,4 and 115200(Baud rate)

- Mode check : Online Only

- Check the test process: DETECT -> MAC -> CI -> Widevine

- Play : START

- Result : Ready, Test, OK or NG

- Printer Out (MAC Address Label)

3.2. LAN Inspection

(1) Equipment & Condition

A Each other connection to LAN Port of IP Hub and Jig

(2) LAN inspection solution

A LAN Port connection with PCB A Network setting at MENU Mode of TV A setting automatic IP A Setting state confirmation

-> If automatic setting is finished, you confirm IP and MAC Address.

PCBA

PC(RS-232C)

RS-232C Po rt

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Only for training and service purposes

3.3. Widevine Key Inspection

- Confirm key input Data at the “IN START” MENU Mode.

3.4. LAN PORT INSPECTION(PING TEST)

Connect SET -> LAN port == PC -> LAN Port.

(1) Equipment setting

1) Play the LAN Port Test PROGRAM.

2) Input IP set up for an inspection to Test Program. *IP Number : 12.12.2.2

(2) LAN PORT inspection (PING TEST)

1) Play the LAN Port Test Program.

2) Connect each other LAN Port Jack.

3) Play Test (F9) button and confirm OK Message.

4) Remove LAN cable.

3.5. Model name & serial number download

(1) Model name & Serial number D/L

A Press “Power on” key of service remote control.

(Baud rate : 115200 bps)

A Connect RS232 Signal Cable to RS-232 Jack. A Write Serial number by use RS-232. A Must check the serial number at Instart menu.

(2) Method & notice

A. Serial number D/L is using of scan equipment. B. Setting of scan equipment operated by Manufacturing

Technology Group.

C. Serial number D/L must be conformed when it is produced

in production line, because serial number D/L is mandatory by D-book 4.0.

* Manual Download (Model Name and Serial Number)

If the TV set is downloaded by OTA or service man, sometimes model name or serial number is initialized.(Not always) There is impossible to download by bar code scan, so It need Manual download. a. Press the ‘instart’ key of ADJ remote control. b. Go to the menu ‘5.Model Number D/L’ like below photo. c. Input the Factory model name(ex 42LD450-ZA) or Serial

number like photo.

d. Check the model name Instart menu. -> Factory name

displayed. (ex 32LV3700-ZA)

e. Check the Diagnostics.(DTV country only) -> Buyer model

displayed. (ex 32LV3700)

SET PC

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Only for training and service purposes

3.7. CI+ Key checking method

Check whether the key was downloaded or not at ‘In Start’

menu. (Refer to below).

=> Check the Download to CI+ key value in LGset.

3.7.1. Check the method of CI+ Key value (1) Check the method on Instart menu. (2) Check the method of RS232C Command.

1) Into the main assembly mode (RS232 : aa 00 00)

2) Check the key download for transmitted command. (RS232 : ci 00 10)

3) Result value

- Normally status for download : OKx

- Abnormally status for download : NGx

3.7.2. Check the method of CI+ Key value (RS232)

1) Into the main assembly mode (RS232 : aa 00 00)

2) Check the method of CI+ key by command.

(RS232 : ci 00 20)

3) Result value i 01 OK 1d1852d21c1ed5dcx

3.8. WIFI MAC ADDRESS CHECK

(1) Using RS232

(2) Check the menu on in-start.

4. Manual Adjustment

4.1. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download

(1) Overview

It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”.

(2) Equipment

- Adjustment remote control

- Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need.

(3)Download method

1) Press ADJ key on the Adjustment remote control, then

select “12.EDID D/L”, by pressing Enter key, enter EDID D/L menu.

2) Select [Start] button by pressing Enter key, HDMI1/

HDMI2/ HDMI3/ RGB are Writing and display OK or NG.

(4) EDID DATA

A HDMI

A RGB

0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C0x0D 0x0E 0x0F

0x02 0F 50 54 A1 08 00 71 40 81 C0 81 00 81 80 95 00

0x03 90 40 A9 C0 B3 00 02 3A 80 18 71 38 2D 40 58 2C

0x04 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30

0x05 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 39 0x06 3F 1F 52 10 00 0A 20 20 20 20 20 20 ⓓ 0x07 ⓓ 01 ⓔ1

0x00 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21 0x01 22 15 01 26 15 07 50 09 57 07 67 ⓕ 0x02 ⓕ E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C

0x03 25 00 A0 5A 00 00 00 9E 01 1D 00 80 51 D0 1A 20

0x04 6E 88 55 00 A0 5A 00 00 00 1A 02 3A 80 18 71 38

0x05 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 66 21 50 B0

0x06 51 00 1B 30 40 70 36 00 A0 5A 00 00 00 1E 00 00 0x07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ⓔ2

CMD 1 CMD 2 Data 0

AA00

CMD 1 CMD 2 Data 0

CI10

CMD 1 CMD 2 Data 0

AA00

CMD 1 CMD 2 Data 0

CI20

CI+ key Value

H-freq(kHz) V-freq.(Hz)

Transmission [A][I][ ][Set ID][ ][20][Cr] [O][K][X] or [NG]

0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C0x0D 0x0E 0x0F

0x02 0F 50 54 A1 08 00 71 4F 01 01 01 01 01 01 95 00

0x03 90 40 A9 C0 B3 00 02 3A 80 18 71 38 2D 40 58 2C

0x04 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30

0x05 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A 0x06 3E 1E 53 10 00 0A 20 20 20 20 20 20 ⓓ 0x07 ⓓ 01 ⓔ3

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Only for training and service purposes

A Reference

- HDMI1 ~ HDMI3 / RGB

- In the data of EDID, bellows may be different by S/W or Input mode.

ⓐ Product ID

ⓑ Serial No. : Controlled on product line

ex) Monthly : ‘01’ -> ‘01’

Year : ‘2010’ -> ‘14’

ⓓ Model Name(Hex): ⓔ Checksum: Changeable by total EDID data.

ⓕ Vendor Specific(HDMI)

4.2. White Balance Adjustment

4.2.1. Overview

(1) W/B adj. Objective & How-it-works (2) Objective: To reduce each Panel’s W/B deviation (3) How-it-works : When R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value.

(4) Adj. condition : normal temperature

1) Surrounding Temperature : 25 ºC ± 5 ºC

2) Warm-up time: About 5 Min

3) Surrounding Humidity : 20 % ~ 80 %

4.2.2 Equipment

1) Color Analyzer: CA-210 (LED Module : CH 14)

2) Adjustment Computer(During auto adj., RS-232C protocol is needed)

3) Adjustment remote control

4) Video Signal Generator MSPG-925F 720p/204-Gray

(Model:217, Pattern:49)

-> Only when internal pattern is not available

A Color Analyzer Matrix should be calibrated using CS-1000.

4.2.3. Equipment connection MAP

4.2.4. Adj. Command (Protocol)

- LEN: Number of Data Byte to be sent

- CMD: Command

- VAL: FOS Data value

- CS: Checksum of sent data

- A: Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]

A RS-232C Command used during auto-adj.

Ex) wb 00 00 -> Begin white balance auto-adj.

wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. completed

*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.

wb 00 ff -> End white balance auto-adj.

A Adj. Map

Model Name HEX EDID Table DDC Function

ALL 0001 0100 Analog

0001 0100 Digital

MODEL MODEL NAME(HEX)

all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

INPUT MODEL NAME(HEX)

HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

RGB 78 03 0C 00 40 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

INPUT ⓔ1 ⓔ2 ⓔ3

HDMI1 7F CB X

HDMI2 7F BB X

HDMI3 7F AB X

RGB X X 98

Color Analyzer

Comp uter

Pattern Generator

RS- 232C

RS-232C

Probe

Signal Source

* If TV internal pattern is used, not needed

LEN CMD VAL

RS-232C COMMAND Explanation

[CMD ID DATA]

wb 00 00 Begin White Balance adj.

wb 00 10 Gain adj.(internal white pattern)

wb 00 1f Gain adj. completed

wb 00 20 Offset adj.(internal white pattern)

wb 00 2f Offset adj. completed

wb 00 ff End White Balance adj.(Internal pattern disappears)

ITEM Command Data Range(Hex.) Default(Decimal)

Cmd 1 Cmd 2 Min Max

Cool R-Gain j g 00 C0

G-Gain j h 00 C0

B-Gain j i 00 C0

R-Cut

G-Cut

B-Cut

Medium R-Gain j a 00 C0

G-Gain j b 00 C0

B-Gain j c 00 C0

R-Cut

G-Cut

B-Cut

Warm R-Gain j d 00 C0

G-Gain j e 00 C0

B-Gain j f 00 C0

R-Cut

G-Cut

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