LG 72LM9500 Schematic

Internal Use Only

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

LED LCD TV

SERVICE MANUAL

CHASSIS : LT23J

MODEL : 72LM9500 72LM9500-DA

CAUTION

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

Printed in KoreaP/NO : MFL67443404 (1206-REV00)

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION ................................................................ 9

TROUBLE SHOOTING ............................................................................ 19

EXPLODED VIEW .................................................................................. 26

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

Only for training and service purposes

- 2 -

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

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 th e cir cuitry 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 exp ose d metallic par t. 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

Only for training and service purposes

- 3 -

SPECIFICATION

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

1. Application range

This spec sheet is applied to the LCD TV used LT23J chassis.

2. Test condition

Each part is tested as below without special notice.

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

2) Relative Humidity: 65 % ± 10 %

3) Power Voltage : S ta ndard i nput voltage (100~240V@ 50/60Hz)

4) Specification and performance of each parts are followed

ea ch drawing and s pe cificatio n b y p art 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

Only for training and service purposes

- 4 -

4. General Specification

No Item Specication Remark

1. Display Screen Device 54.64” Color Active Matrix LCD Module

46.96” Color Active Matrix LCD Module

72.07” Color Active Matrix LCD Module

2. Aspect Ratio 16:9 All

3. LCD Module 54.64” WUXGA diagonal LCD

46.96” WUXGA diagonal LCD

72.07” WUXGA diagonal LCD

4. Operating Environment TFT 1) Temp. : 0 ~ 40 deg

2) Humidity : 0 ~ 85%

ALEF Temp. : 0 ~ 50 deg

Humidity : 20 ~ 90%

5. Storage Environment TFT Temp. : -20 ~ 60 deg Humidity : 10 ~ 90%

ALEF Temp. : -20 ~ 60 deg

Humidity : 10 ~ 90%

6. Input Voltage AC100 ~ 240V, 50/60Hz

7. Power Consumption(Max) =

LCD(Module) + Backlight(LED)

8. LCD Module Size Maker Inch (H) × (V) × (D)

Pixel Pitch Maker Inch (H) × (V) × (D)

T480 54.64” 190 W LC550DUT-SEF1(55LM9600-DA)

46.96” 81 W LC470DUT-SEF1(47LM9600-DA)

72.07” 385 W LC720DUC-SDF1(72LM9500-DA)

T240 46.96” 129 W LC470EUH-KEF1(47LM8600-DA)

LGD 54.64” 1217 x 689.9 x 1.5 LC550DUT-SEF1(55LM9600-DA)

46.96” 1046.68 x 594.02 x1.5 LC470DUT-SEF1(47LM9600-DA)

46.96” 1059.5 x 616.2 x 20.7 LC470EUH-KEF1(47LM8600-DA)

72.07” 1666.0 x 968.0 x 54.0

LGD 47” 0.5415 x 0.5415 LC470DUT-SEF1(47LM9600-DA)

55” 0.630 x 0.630

47” 0.5415 x 0.5415

LC550DUT-SEF1(55LM9600-DA) LC470DUT-SEF1(47LM9600-DA) LC470EUH-KEF1(47LM8600-DA) LC720DUC-SDF1(72LM9500-DA)

LGE SPEC

LC720DUC-SDF1(72LM9500-DA)

LC550DUT-SEF1(55LM9600) ALEF 3D-PG T480

LC470EUH-KEF1(47LM8600-DA)

Back Light LGD 54.64” ALEF

Only for training and service purposes

72.07” 0.831 x 0.831

46.96” ALEF LC470DUT-SEF1(47LM9600-DA)

46.96” EDG-LED LC470EUH-KEF1(47LM8600-DA)

72.07” EDG-LED LC720DUC-SDF1(72LM9500-DA)

- 5 -

LC720DUC-SDF1(72LM9500-DA)

LC550DUT-SEF1(55LM9600) ALEF 3D-PG T480

5. External Input Support Format

5.1. Component(Y, Pb, Pr)

No. Resolution H-freq(kHz) V-freq(Hz) Remark

1. 720*480i 15.73 59.94 13.500 SDTV, DVD 480I(525I)

2 720*480i 15.73 60.00 13.514 SDTV, DVD 480I(525I)

3. 720*576i 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz

4 720*480p 31.47 59.94 27.000 SDTV 480P

5 720*480p 31.50 60.00 27.027 SDTV 480P

6 720*576p 31.25 50.00 27.000 SDTV 576P 50Hz

7 1280*720 44.96 59.94 74.176 HDTV 720P

8 1280*720 45.00 60.00 74.250 HDTV 720P

9 1280*720 37.50 50.00 74.25 HDTV 720P 50Hz

10 1920*1080 28.125 50.00 74.250 HDTV 1080I 50Hz,

11 1920*1080 33.72 59.94 74.176 HDTV 1080I

12 1920*1080 33.75 60.00 74.25 HDTV 1080I

13 1920*1080 26.97 23.976 63.296 HDTV 1080P

14 1920*1080 27.00 24.000 63.36 HDTV 1080P

15 1920*1080 33.71 29.97 79.120 HDTV 1080P

16 1920*1080 33.75 30.00 79.20 HDTV 1080P

17 1920*1080 56.25 50 148.5 HDTV 1080P

18 1920*1080 67.432 59.94 148.350 HDTV 1080P

19 1920*1080 67.5 60.00 148.5 HDTV 1080P

5.2. RGB Input ( PC )

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

1 640*350 31.468 70.09 25.174 EGA For only DOS mode

2 720*400 31.469 70.08 28.321 DOS For only DOS mode

640*480 31.469 59.94 25.17 VESA(VGA)

4 800*600 37.879 60.31 40.00 VESA(SVGA)

5. 1024*768 48.363 60.00 65.00 VESA(XGA)

6. 1152*864 54.348 60.053 80.00 VESA(XGA Plus)

7. 1360*768 47.712 60.015 85.50 VESA(WXGA) FHD Only

8. 1920*1080 67.5 60.00 148.5 VESA(WUXGA)

Input 848*480 60Hz, 852*480 60Hz => 640*480 60Hz Display

Only for training and service purposes

- 6 -

5.3. HDMI input

5.3.1. DTV mode

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

1 720*480 15.73 59.94 13.500 SDTV, DVD 480I(525I)

Spec. out but display2 720*480 15.75 60.00 13.514 SDTV, DVD 480I(525I)

3 720*576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz

4 720*480 31.47 59.94 27 SDTV 480P

5 720*480 31.5 60.00 27.027 SDTV 480P

6 720*576 31.25 50.00 27 SDTV 576P

7 1280*720 44.96 59.94 74.176 HDTV 720P

8 1280*720 45 60.00 74.25 HDTV 720P

9 1280*720 37.5 50.00 74.25 HDTV 720P

10 1920*1080 28.125 50.00 74.25 HDTV 1080I

11 1920*1080 33.72 59.94 74.176 HDTV 1080I

12 1920*1080 33.75 60.00 74.25 HDTV 1080I

13 1920*1080 26.97 23.976 63.296 HDTV 1080P

14 1920*1080 27.00 24.000 63.36 HDTV 1080P

15 1920*1080 33.71 29.97 79.120 HDTV 1080P

16 1920*1080 33.75 30.00 79.20 HDTV 1080P

17 1920*1080 56.25 50.00 148.5 HDTV 1080P

18 1920*1080 67.432 59.94 148.350 HDTV 1080P

19 1920*1080 67.5 60.00 148.5 HDTV 1080P

5.3.2. PC mode

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

1 640*350 31.468 70.09 25.17 EGA

2 720*400 31.469 70.08 28.32 DOS

3 640*480 31.469 59.94 25.17 VESA(VGA)

4 800*600 37.879 60.31 40 VESA(SVGA)

5 1024*768 48.363 60.00 65 VESA(XGA)

6 1152*864 54.348 60.053 80.00 VESA

7 1280*1024 63.981 60.020 108.00 SXGA

8 1360*768 47.712 60.015 84.75 VESA(WXGA)

1920*1080 67.5 60.00 148.5 WUXGA

Only for training and service purposes

- 7 -

5.3.3. 3D mode

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

*** HDMI 1.4

1 1280*720 75 50 148.5 HDTV 720P Frame packing

2 1280*720 37.5 50 74.25 HDTV 720P Side by Side(half), Top and Bottom

3. 1280*720 89.9 59.94 148.35 HDTV 720P Frame packing

90 60 148.5

4 1280*720 45 60 74.25 HDTV 720P Side by Side(half), Top and Bottom

5 1920*1080 53.95 23.95 148.35 HDTV 1080P Frame packing

54 24 148.5

6 1920*1080 27 24 74.25 HDTV 108 0P Side by Side(half), Top and Bottom

7 1920*1080 33.7 30 89.1 HDTV 1080P Side by Side(half), Top and Bottom

8 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom

9 1920*1080 56.25 50 148.5 HDTV 1080P Side by Side(half), Top and bottom,

10 1920*1080 33.7 60 74.25 HDTV 1080i Side by Side(half), Top and Bottom

11 1920*1080 28.1 50 74.25 HDTV 1080i Side by Side(half), Top and Bottom

*** HDMI 1.3

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

6 1920*1080 33.75 30.00 74.25 HDTV 1080P

7 1920*1080 67.50 60.00 148.5 HDTV 1080P

8 1920*1080 56.25 50 148.5 HDTV 1080P

Side by Side, Top & Bottom, Checkerboard

Single Frame Sequential

Side by Side, Top & Bottom, Checkerboard

Single Frame Sequential

Only for training and service purposes

- 8 -

ADJUSTMENT INSTRUCTION

1. Application Range

This spec. sheet is applied all of 72” LCD TV, LT23J chassis by manufacturing LG TV Plant all over the world

2. Specification

(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 100~220V,

50/60Hz (5) Before adjustment, execute Heat-Run for 5 minutes at RF

no signal.

3. Adjustment items

3.1. PCB assembly adjustment items

(1) MAC Address, ESN Key and Wide-vine Key D/L (2) LAN Test( Ping-Test ) (3) Main S/W program download : Using USB Memory stick (4) Input Tool - Option (5) Download EDID : EDID data are automatically downloaded

when adjusting the Tool Option. (6) ADC Calibration – RGB & Component (7) Check SW Version

4. PCB assembly adjustment method

4.1. MAC Address, ESN Key and Wide-vine Key Download

■ D/L Program : keydownload.exe

4.1.1. Equipment & Condition

1) Play file: keydownload.exe

2) Key Write: Com 1,2,3,4 and 115200 (Baudrate)

3) Barcode: Com 1,2,3,4 and 9600 (Baudrate)

4.1.2. Download Process

(12Y LCD TV + MAC + WIDEVINE + ESN)

1) Execute “keydownload.exe” on PC

2) Select the download items.

3) Mode check: Online only

4) Check the test process

- DETECT -> MAC_WRITE -> ESN_WRITE -> WIDEVINE_ WRITE

5) Play: START

6) Check of result: Ready, Test, OK or NG

3.2. SET assembly adjustment items

(1) Input Area option. (2) Adjustment of White Balance : Auto (3) Adjustment of White Balance : Manual (4) Intelligent Sensor Inspection Guide (5) LAN Inspection Guide (6) Widevine Key Inspection Guide (7) Model name & Serial number D/L (8) Wi-Fi MAC Address Check (9) Local Dimming Inspection Guide (10) Preset CH information (11) Internal Press Test (12) Motion Remote controller Inspection (13) 3D Function test

(14) Outgoing Condition Conguration

(15) Sound spec (16) Factoring Option Data input.

4.1.3. Inspection

INSTART menu, check these keys.

Only for training and service purposes

- 9 -

4.2. PING Test(LAN Operating Test)

4.2.1. Check PCBA

1) Connect LAN to PCBA& Power On.(Default IP can be set to automatic setting. When power ON, IP can be Automatically be achieved from the router)

2) Push ADJ key on Adjust remote-controller.

3) Enter “13. ACAP PING TEST” & check Network

4.2.2. Check Set

1) Co nnect TV-Set & PC with Cross LAN cable.(PC IP :

12.12.2.3)

2) Execute “PINT Test program ”, Ch eck sett ing data of program. (TV-Set IP : 12.12.2.2)

3) Push Power Only key on Adjust remote-controlle.

4) Click “RUN”, Check “OK” or “NG”

4.3. Main S/W program download

4.3.1. Using the Memory Stick

** USB DOWNLOAD : Service Mode

1) Insert the USB memory Stick to the USB port

2) Automatically detect the SW Version.

-> S/W download process is executed automatically.

3) Show the message “Copy the file from the Memory”

4) After Finished the Download, Automatically DC Off -> On

5) If the TV IS Turn On, Check the updated SW Version and Tool Option.

Only for training and service purposes

- 10 -

4.4. Input tool option.

Adjust tool option refer to the BOM.

▪ Tool Option Input : PCBA Check Process ▪ Area Option Input : Set Assembly Process

*** Tool Option table

MODEL 55LM9600 47LM9600 47LM8600 72LM9500

Tool Option1 33001 32999 32983 33148

Tool Option2 46421 46421 42325 50517

Tool Option3 21325 21325 21357 21325

Tool Option4 21039 21039 12845 21039

Tool Option5 23063 23063 23063 6677

Tool Option6 1321 1321 1321 1321

Tool Option7 63019 63019 62763 63019

After Input Tool Option and AC off Before PCBA check, you have to change the Tool option and have to AC off/on (Plug out and in) (If missing this process, set can operate abnormally)

4.4.1. Profile

Must be changed the option value because being different with some setting value depend on module maker, inch and market

4.4.2. Equipment

Adjustment remote control

4.5. EDID D/L method

Recommend that don’t connect HDMI and RGB(D-SUB) cable when downloading the EDID. If not possible, recommend that connect the MSPG equipment. There are two methods of downloading the edid data

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”

4.5.1. 1st Method

EDID datas are automatically downloaded when adjusting the Tool Options. Automatically downloaded when pushing the enter key after adjusting the tool option5. It takes about 2seconds

4.5.2. 2nd Method

● Caution : Must be checked that the tool option is right or not.

If tool option is wrong, hdmi edid data could not be

downloaded well.

1) Press the ADJ key

2) Move to the 10. EDID D/L and Press the right direction

key(►)

3) Press the right direction key(►) at Start.

4) After about a few seconds, appear “Waiting..” => “OK”, then

compele.

4.4.3. Adjustment method

The input methods are same as other chassis.(Use ADJ Key on the Adjust Remocon.) (If not changed the option, the input menu can differ the model spec.) Re fe r to Job Expre ss ion of each main ch assis ass’ y (EBTxxxxxxxx) for Option value Caution : Don’t Press “IN-STOP” key after completing the

function inspection.

4.5.3. RS-232C command Method

1) Command : AE 00 10

● Caution : Don’t connect HDMI and RGB(D-SUB) cable when

downloading the EDID.

If the cables are connected, Downloading of edid

could be failed

Only for training and service purposes

- 11 -

4.5.4. EDID data

4.5.4.1. HDMI(FHD 3D_Deep color support)

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 16 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26

20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80

30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30

50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A

60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC

70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 02 03 37 F1 4E 10 9F 04 13 05 14 03 02 12 20 21

10 22 15 01 26 15 07 50 09 57 07 78 03 0C 00 10 00

20 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16

30 10 28 10 E3 05 03 01 02 3A 80 18 71 38 2D 40 58

40 2C 45 00 A0 5A 00 00 00 1E 01 1D 80 18 71 1C 16

50 20 58 2C 25 00 A0 5A 00 00 00 9E 01 1D 00 72 51

60 D0 1E 20 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00

70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11

(1) HDMI 1 Check sum : 0x43, 0X11 (CEA Block 0x1E :10) (2) HDMI 2 Check sum : 0x43, 0X01 (CEA Block 0x1E :20) (3) HDMI 3 Check sum : 0x43, 0XF1 (CEA Block 0x1E :30) (4) HDMI 4 Check sum : 0x43, 0XE1 (CEA Block 0x1E :40)

4.5.4.2. RGB(Check sum : 5C)

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 16 01 03 68 A0 5A 78 0A EE 91 A3 54 4C 99 26

20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80

30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30

50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A

60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC

70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 00 5C

4.6. ADC Calibration : Comp 480i/Comp 1080p/RGB

4.6.1. ADC Calibration : Internal Auto ADC

※ If Adjust ADC is “OTP”, It doesn’t need ADC adjustment.

(GP3-BCM)

4.6.2. Automatic ADC Calibration

4.6.2.1. Process ADC adjustment is needed to find the optimum black level and gain in Analog to Digital device and to compensate RGB deviation

4.6.2.2. Equipment & Condition

1) Jig(RS-232C protocol)

2) Inner Pattern

- Resolution : 1080P(inner pattern)

- Resolution : 1024 * 768 RGB(Inner pattern)

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level : 0.7± 0.1 Vp-p

4.6.2.3. Adjustment Process

4.6.2.3.1. Adj protocol

Protocol Command Set ACK

Enter adj. mode aa 00 00 a 00 OK00x

Source change xb 00 40

xb 00 60

Begin adj. ad 00 10

Return adj. result OKx (Case of Success)

Read adj. data (main)

ad 00 20

(sub ) ad 00 21

Conrm adj. ad 00 99 NG 03 00x (Fail)

End adj. aa 00 90 a 00 OK90x

4.6.2.3.2. Adj order (1) aa 00 00 [Enter ADC adj. model] (2) xb 00 40 [Change input source to Component(480i)] (3) ad 00 10 [Adjust 480i Component1] (4) xb 00 60 [Change input source to RGB(1024*768)] (5) ad 00 10 [Adjust 1024*768 RGB] (6) ad 00 90 [End adj] (Ref) ADC adj RS232C Protocol_Ver1.0

b 00 OK40x (Adjust 480i Comp1 ) b 00 OK60x (Adjust 1024*768 RGB)

NGx (Case of Fail)

(main) 000000000000000000000000007c007b006dx

(Sub) 000000070000000000000000007c00830077x

NG 03 01x (Fail) NG 03 02x (Fail) OK 03 03x (Success)

Only for training and service purposes

- 12 -

4.7. Check SW Version

4.7.1. Method

1) Push In-star key on Adjust remote-controller.

2) SW Version check(ex. 47LW9500-DA)

5. SET assembly adjustment method

5.1. Input Area-Option

(1) Prole : Must be changed the Area option value because

being different of each Country’s Language and

signal Condition. (2) Equipment : adjustment remote control. (3) Adjustment method

- The input methods are same as other chassis.(Use IN-START

Key on the Adjust Remocon.)

Refer to Job Expression of each main chassis ass’y

(EBTxxxxxxxx) for Option value

※ Required Equipment

▪ Remote controller for adjustment ▪ Color Analyzer : CA100+ or CA-210 or same product (should

be used in the calibrated ch by CS-1000)

- LCD TV : CH-9

- PDP TV : CH-10

- White LED TV : CH-14

- RGB LED(MNT) : CH-16

▪ Auto W/B adjustment instrument(only for Auto adjustment)

5.2.1. Adjustment of White Balance : (For Automatic Adjustment)

Co nnectin g diag ram of equipme nt for measu ring (Fo r Automatic Adjustment)

1) Set TV in adj. mode using POWER ON key

2) Zero calibrate probe then place it on the center of the Display

3) Connect Cable(RS-232C)

4) Select mode in adj. Program and begin adj.

5) When adj. is complete (OK Sing), check adj. status pre mode(Warm, Medium, Cool)

6) Remove probe and RS-232C cable to complete adj.

▪ W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need

※ Luminance min value is 150cd in the Cool/Medium/Warm

mode( For LCD)

5.2. Adjustment of White Balance

● 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.

▪ Purpose : Adjust the color temperature to reduce the deviation

of the module color temperature.

▪ Principle : To adjust the white balance without the saturation,

Fix the one of R/G/B gain to 192 (default data) and decrease the others.

▪ Adjustment mode : Three modes – Cool / Medium / Warm

Only for training and service purposes

- 13 -

5.2.2. Adjustment of White Balance (for Manual adjustment)

▪ Co lor analyzer(CA100+, CA210) should be used in the

calibrated ch by CS-1000

▪ Operate the zero-calibration of the CA100+ or CA-210, then

stick sensor to the module when adjusting.

▪ For manual adjustment, it is also possible by the following

sequence.

1) Select white pattern of heat-run by pressing “POWER ON”

key on remote control for adjustment then operate heat run longer than 15 minutes.

(If not executed this step, the condition for W/B may be

different.)

2) Push “Exit” key.

3) Change to the AV mode by remote control.

4) Input external pattern (80% white pattern)

5) Push the ADJ key => Enter “0000” (Password)

6) Select “3. W/B ADJUST”

7) Enter the W/B ADJUST Mode

8) Stick the sensor to the center of the screen and select each

items (Red/Green/Blue Gain and Offset) using ▲/▼(CH +/-)

key on R/C..

9) Adjust R/ G/ B Gain using ◄/►(VOL +/-) key on R/C.

10) Adjust three modes all (Cool / Medium / Warm) : Fix the

one of R/G/B gain and change the others

11) When adjustment is completed, Enter “COPY ALL”

12) Exit adjustment mode using EXIT key on R/C.

※ CASE First adjust the coordinate far away from the target value(x, y). (1) x, y >target i) Decrease the R, G. (2) x, y < target i) First decrease the B gain, ii) Decrease the one of the others. (3) x >target , y< target i) First decrease B, so make y a little more than the target. ii) Adjust x value by decreasing the R (4) x < target , y >target i) First decrease B, so make x a little more than the target. ii) Adjust x value by decreasing the G

● Standard color coordinate and temperature when using the

CA100+ or CA210 equipment

Color coordinate

Mode

Temp

△uv

X Y

Cool

0.269±0.002 0.273±0.002 13000K

0.0000

Medium 0.285±0.002 0.293±0.002 9,300 K 0.000

Warm 0.313±0.002 0.329±0.002 6,500K 0.003

Change reason : When vivid mode, more detail than other

company set.

GP3 Aging

● In case of Edge LED module, the color coordinates is changing

by aging, so you have to use the below table.

The Time Table of color coordinates by SET Aging Time

(1) Edge LED Models(47LM8600-DA)

time

(Min)

1 0 ~ 2 293 305 309 323 330 348

2 3 ~ 5 292 303 308 321 330 347

3 6 ~ 9 291 302 307 320 329 346

4 10 ~19 288 298 304 316 326 342

5 20 ~ 35 286 295 302 313 324 339

6 36 ~ 49 285 293 301 311 322 337

7 50 ~ 79 283 291 299 309 321 335

8 80 ~ 149 282 289 298 308 320 334

9 Over 150 281 287 298 306 319 332

Cool Medium Warm

x y x y x y

269 273 285 293 313 329

(2) ALEF (47LM9600-DA)

time

(Min)

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

Cool Medium Warm

x y x y x y

269 273 285 293 313 329

(3) ALEF (55LM9600-DA)

time

(Min)

1 20 282 298 298 318 319 344

2 21 ~ 25 280 296 296 316 317 342

3 26 ~ 30 279 294 295 314 316 340

4 31 ~ 35 277 292 293 312 314 338

5 36 ~ 40 276 290 292 310 313 336

6 41 ~ 50 275 288 291 308 312 334

7 51 ~ 80 272 284 288 304 309 330

8 81 ~ 119 271 282 287 302 308 328

9 Over 120 270 281 286 301 307 327

Cool Medium Warm

x y x y x y

269 273 285 293 313 329

Only for training and service purposes

- 14 -

(4) IOL (72LM9500-DA)

GP3 Aging

time

(Min)

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 120 269 283 285 293 309 323

Cool Medium Warm

x y x y x y

269 273 285 293 313 329

■ In the SET applied LED module (LS5700/LM6200/LM6600/

LM7600 Series), cause of the physical characteristics of LED Module, sets are taken a 120 minutes by aging time to stabilize a color coordinates. So White Balance Control equipments have to get the SET Aging Time from the SET and then going to control the W/B by revise color coordinates at each time

5.3. Intelligent Sensor Inspection Guide

Step 1. Turn on the TV set. Step 2. Press “EYE” button on the Adjustment remote controller.

Step 3. Block the Intelligent Sensor module on the front C/A about 6 seconds. When the “Sensor Data” is lower than 20, you can see the “OK” message -> If it doesn’t show “OK” message, the Sensor Module is defected one. You have to replace that with a good one.

Green Eye-Check

Sensor Data : 492 BackLight : 100

- To check the Coordinates of White Balance, you have to measure at the below conditions.

Picture Mode : select Vivid and change Dynamic Contrast : Off , Dynamic Colour : Off, Clear White : Off

->Picture Mode change : Vidid -> Vivid(User)

(If you miss the upper condition, the coordinates of W/B can be lower than the spec.)

Step 4. After check the “OK” message come out, take out your hand from the Sensor module.

-> Check “Sensor Data” value change from “0” to “300” or not. If it doesn’t change the value, the sensor is also defected

one. You have to replace it.

5.4. LAN Inspection

1) LAN Port connection with PCB

2) Network setting at MENU Mode of TV

3) Setting automatic IP

4) Setting state conrmation

5) If automatic setting is nished, you conrm IP and MAC

Address

Only for training and service purposes

- 15 -

5.5. WIDEVINE Key Inspection

1) Conrm Key input Data at the “IN START” MENU Mode

5.6. Model name & Serial number D/L

5.6.1. Notice

1) Serial number D/L is using of scan equipment.

2) Setting of scan equipment operated by Manufacturing

Technology Group.

3) 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

4) Check the model name In-start menu -> Factory name

displayed (ex 32LS5700-DA)

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

displayed (ex 32LS5700-DA)

5.7. Wi-Fi MAC ADDRESS CHECK

5.7.1. Notice

1) Using RS232

Command Set ACK

Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]

2) Check the menu on in-start

5.6.2. Method : Auto

1) Press “Power on” key of service remocon.(Baud rate : 115200

bps)

2) Connect RS232 Signal Cable to RS-232 Jack

3) Write Serial number by use RS-232.

4) Must check the serial number at Instart menu

5.6.3. Method : Manual

* If the TV set is downloaded By OTA or Service man, Sometimes model name or serial number is initialized. ( Not always) It is impossible to download by bar code scan, so It need Manual download.

1) Press the ‘instart’ key of ADJ remote controller.

2) Go to the menu ‘6.Model Number D/L’ like below photo.

3) Input the Factory model name or Serial number like photo.

5.8. Local Dimming Inspection (Optional)

5.8.1. Edge LED models with local dimming

1) Press ‘TILT” key of the Adj. R/C and check moving patterns. The black bar patterns moves from left to right. If local dimming function does not work, a whole screen shows full white.

5.9. GND and Hi-Pot test

No Item Vallue Unit Remark

1. Dielectric Voltage(AC<->FG)

2. Dielectric Voltage(Without FG)

1.5 kV At 100mA for 1sec(Line)

1.5 At 100mA for 1min(OQC)

3 kV At 100mA for

1sec(Line)

3 At 100mA for

1min(OQC)

Only for training and service purposes

- 16 -

5.10. Motion Remote controller Inspection

5.10.1. Equipment

Motion remote controller for test, IR-KEY-CODE remote controller for test Check battery before test. (Recommend : Change battery for every Lot.)

5.10.2. Process

1) Push “Mute” or “ START” key for pairing between TV-set and motion remote controller.

2) Push “OK” or “Enter” key, you can see the Cursor on screen.

3) Push “Vol+” or “STOP” key, Disconnect Pairing.

5.11. Audio

No Item Min Typ Max Unit Remark

1 Audio practical

max Output, L/R (Distortion=10% max Output)

2 Speaker (8Ω

Impedance)

▪ Measurement condition:

(1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1 KHz sine wave signal 0.4Vrms (3) RGB PC: 1 KHz sine wave signal 0.7Vrms

9.0 10.0 12.0 W Measure-

8.5 8.9 9.8 Vrms

10.0 15.0 W Measure-

ment condition (TBD)

47/55LM9600

5.12. 3D Function test

5.12.1. Equipment

Pattern Generator MSPG-3233, HDMI mode 37, pattern No. 81

5.12.2. Equipment

1) Connect HDMI (HDMI mode 371, Pattern No. 81)

2) Insert 3D Mode, Select side by side mode.

3) Without 3D-glasses, Like below gure.

4) With 3D left-glass, Like below gure. (Center is RED)

Only for training and service purposes

- 17 -

5) With 3Dright-glass, Like below gure.(Center is Blue)

5.13. HDMI ARC Function Inspection

5.13.1. Test equipment

- Optic Receiver Speaker

- MSHG-600 (SW: 1220 ↑)

- HDMI Cable (for 1.4 version)

5.13.2. Test method

(1) Insert the HDMI Cable to the HDMI ARC port from the

master equipment (HDMI1)

(2) Check the sound from the TV Set

(3) Check the Sound from the Speaker or using AV & Optic

TEST program (It’s connected to MSHG-600)

* Remark: Inspect in Power Only Mode and check SW version

in a master equipment

Only for training and service purposes

- 18 -

TROUBLE SHOOTING

No power

Check 24V, 12V, 3.5V

of Power B/D

Check short of Main B/D

or Change Power B/D

Pass

Check Output of

Q2305, IC2300, IC2301, IC2302

IC2304, IC2305, IC2306

Check P2301 Connector

Change LED Assy

: [A] PROCESS

Fail

Pass

Check LED Assy

Check short of

IC2303, IC6501

Pass

Check short of

Q2305, IC2300, IC2301, IC2302

IC2304, IC2305, IC2306

Fail

Re-soldering or Change defect

part of Q2305, IC2300, IC2301,

IC2302IC2304, IC2305, IC2306

Fail

Re-soldering or Change defect

part of IC2303, IC6501

Fail

Only for training and service purposes

- 19 -

No Raster

: [B] Process

Check LED status

On Display Unit

Repeat A PROCESS

Fail

Check Output of IC9301

Change IC9301

Fail

Change Inverter Connector

Or Inverter

Fail

Pass

Fail

Pass

Change LVDS Cable

Fail

Check LVDS Cable

Pass

Check Panel Link Cable

Or Module

Change Panel Link Cable

Or Module

Check Inverter Connector

Or Inverter

Pass

Check Output of IC3000(Micom)

Change IC3000

Fail

Pass

Only for training and service purposes

- 20 -

No Raster on USB Signal

Check Input source Cable And Jack

Re-soldering or

Change the defect part

Repeat [A], & [B] Process

Pass

Check the Input/Output

Of JK4300, JK4302, JK4303

Fail

Pass

Check the Input/Output

Of IC101

Fail

Re-soldering or

Change the defect part

Pass

Check the Input/Output

Of IC4200, IC4305, IC4306

Fail

Re-soldering or

Change the defect part

Pass

Only for training and service purposes

- 21 -

No Raster on PC Signal

Check Input source Cable And Jack

Re-soldering or

Change the defect part

Repeat [A], & [B] Process

Pass

Check the Input/Output

Of JK3603

Fail

Pass

Check the Input/Output

Of IC101

Fail

Re-soldering or

Change the defect part

Pass

Only for training and service purposes

- 22 -

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