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LG 60LM6450, Service Manual

The LG 60LM6450 is a stunning high-definition television that will elevate your viewing experience. Unlock its full potential with the comprehensive Service Manual available for free download at manualshive.com. This manual provides detailed instructions and troubleshooting tips, ensuring you make the most of this remarkable product.

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THERMAL

T

H

E

R

M

A

L

THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.

VCOM_N

MCLK

DISCHG

R7709

0

1/16W

R7743

0

1/16W

OPT

SWP

EO

C7750
1uF
25V

OPT

C7714
10uF
25V

Vcore

C7757
1uF
50V

VGH

GIP_RST

CLK3

R7701

10K

1/16W

VCOMRFB

VCOM

CLK5_I

VCOM_N

GST

R7745

0

1/16W

VCOM_P

C7731
0.1uF
16V

GMA14

VGH_F

R7741

0

1/16W

OPT

CTRLP

CLK1_I

VCOM_LOOP

VDD

VGH

VL

SWP

R7736

3K

1/16W

VCOMLFB

R7708

0

1/16W

C7705
10uF
10V

R7726

0

1/16W

OPT

VCC

R7706

47

1/16W

CLK2_I

VGL

VCC

CTRLP

TH7700

47k-ohm

NCP18WB473F10RB

I2C_SDA2

GMA12

VDD

GCLK

R7732

0

1/16W

OPT

C7716
10uF
25V

OPT

VGL_I

REVERSE

C7740
1000pF
50V

OPT

C7755
1uF
50V

CLK2

SWN

VST

VDD

GMA7

C7723
10uF
25V

C7713
10uF
25V

CLK6

R7710

0

1/16W

C7748

1uF 25V

C7745

1uF 25V

R7721

0

1/16W

C7747

1uF 25V

R7733

0

1/16W

COMP

VCC

R7746

0

1/16W

C7721

10uF

25V

OPT

C7709
10uF
10V

CLK2_I

VGL

COMP

R7716

0

1/16W

OPT

R7731

0

1/16W

SWN

VDD

R7723

0

1/16W

CLK4_I

R7742

3K

1/16W

OPT

CLK3_I

RE

R7718

9.1K

1/16W

R7735

100

1/16W

CTRLN

C7717
15pF
50V

R7724

0

1/16W

OPT

C7707
10uF
10V

OPT

VGL

VCOM_LOOP

R7704

47

1/16W

GMA4

CLK6_I

R7713
2.2

1/16W

OPT

C7711
10uF
10V

CLK6_I

L7702

22uH

VDD

VGH

SS

MCLK

DISCHG

R7703

47

1/16W

L7700

LQM2HPN2R2MG0L

2.2uH

CLK4

R7722

100K

1/16W

1%

SS

VL

H_VDD

C7725
10uF
25V

OPT

C7720
15pF
50V

VGH_R

VGL

R7719

0

1/16W

C7746

1uF 25V

CLK1

C7736
1000pF
50V

CLK5_I

CLK5

TCOMP

EO

CLK1_I

VCC18

C7706
10uF
10V

L7701

LQM2HPN2R2MG0L

2.2uH

VCOM_P

PANEL_VCC

VGL

CLK4_I

C7719
15pF
50V

R7734

0

1/16W

OPT

C7704
0.1uF
16V

GCLK

C7729

1000pF

50V

OPT

R7705

47

1/16W

R7740

0

1/16W

I2C_SCL2

C7742
1uF
25V

GMA5

C7718
15pF
50V

RE

CTRLN

VGH_EVEN

L7704

22uH

GST

C7710
10uF
10V

TCOMP

PANEL_VCC

GMA15

CLK3_I

VGH_ODD

REVERSE

GST_SOC

GCLK_SOC

EO_SOC

MCLK_SOC

C7726
1uF
25V

PANEL_VCC

R7738

0

1/16W

R7747

0

1/16W

OPT

VCC

R7749

1K

1/16W

OPT

R7748

1K

1/16W

R7751

15K

1/16W

R7752

15K

1/16W

R7754

15K

1/16W

OPT

R7753

15K

1/16W

OPT

C7708
10uF
10V

OPT

R7700

2K

1/16W

R7725

0

1/16W

OPT

C7724

1uF

25V

VCOM_DYN

R7720
47K

1/16W

5%

R7717

33K

1/16W

VGH_FB

VGL_FB

L7703

NR6020T6R8NC

6.8uH

C7715
10uF
16V

C7722
10uF
16V

R7729

2.7K

1/16W

VCC

R7728

100K

1/16W 5%

R7730

1/16W

OPT

R7737

1/16W

OPT

VGL_FB

R7739

1.5K

1/16W

5%

R7727

100K

1/16W 5%

VGH_FB

R7707

0

R7714

0

R7702

0

R7715

0

R7712

0

R7711

0

C7744
1uF
50V

C7749
1uF
50V

PMIC_RESET

D7703

100V

1N4148W

D7705

100V

1N4148W

Q7701

MMBT3906(NXP) 

E

B

C

D7704

100V

1N4148W

D7706

100V

1N4148W

C7728
10uF
10V

OPT

C7712
1uF
10V

C7741
10uF
16V

EPI_LOCK6

EPI_LOCK6_SOURCE

+3.3V_NORMAL

C7732
0.1uF
50V

C7727
0.1uF
50V

C7754
0.1uF
50V

Q7700

MMBT3904(NXP)

E

B

C

D7700

40V

SX34

D7701

40V

SX34

Q7702

MMBT3904(NXP)

E

B

C

Q7703

MMBT3904(NXP)

E

B

C

R7758
10K

R7756
10K

R7757

10K

C7743
1uF
25V

C7756
1uF
25V

R7759

0

1/16W

R7760

0

1/16W

GMA18

VST

TXA1P

GMA1

EPI_LOCK3

CLK2

GIP_RST

VDD

TXB0P

CLK4

Vcore

GMA4

TXB2N

VCOMRFB

TXACLKP

VGL_I

GMA3

GMA4

EPI_LOCK3

CLK1

GMA16

GMA3

VGH_ODD

CLK1

GMA12

GMA9

Z_OUT

TXB2P

VGH_EVEN

CLK6

GMA9

VGH_EVEN

TXB1P

GMA5

GMA15

TXACLKN

GMA7

C7702

0.01uF

50V

GMA10

C7703
0.1uF

50V

VGH_ODD

VCC18

Vcore

VGL_I

GMA18

VCOM

GMA7

TXB0N

H_VDD

GMA14

GMA10

VDD

TXA4N

CLK4

CLK5

CLK6

VGH_F

TXA1N

H_VDD

CLK3

VGH_R

Z_OUT

VST

GMA15

VCOMLFB

CLK5

CLK2

GMA16

VCOM

GMA5

GMA14

EPI_LOCK6_SOURCE

CLK3

TXB1N

VCC18

GMA12

VGH_F

GIP_RST

VGH_R

GMA1

TXA4P

C7700

0.01uF

50V

C7701
0.1uF

50V

R7744

20K

1/10W

5%

R7750

20K

1/10W

5%

C7733
10uF
16V

R7755

100

P7702

FL8S050HA1

DEV_50WAFER

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

P7703

FL8S050HA1

DEV_50WAFER

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

C7730
68uF
35V

C7735
68uF
35V

C7734
0.1uF
50V

C7737
0.1uF
50V

C7739
0.1uF
50V

C7738
0.1uF
50V

R7761
10K

OPT

VCC18

IC7700

TPS65178RSLR

EPI

1

OUT4

2

SWB4

3

RST

4

OUT1

5

OUT2

6

SWB2

7

PGND2

8

SWB1_1

9

SWB1_2

10

NC

11

PVINB1_1

12

PVINB1_2

13

AVIN

14

PVINB3

15

SWB3

16

OUT3

17

PGND3

18

PGND_1

19

PGND_2

20

SW_1

21

SW_2

22

SWI

23

SWO

24

AGND

25

SS

26

COMP

27

SCL

28

SDA

29

VL

30

TCOMP

31

CTRLP

32

VGH

33

SWP

34

SWN

35

VGL

36

CTRLN

37

GMA1

38

GMA2

39

GMA3

40

GMA4

41

GMA5

42

GMA6

43

VCOM

44

NEG

45

POS

46

VCOMFB

47

DYN

48

PGND4

49

[EP]AGND

IC7701

TPS65198

EPI

1

CLK1

3

CLK3

7

RE

9

VGH_F

10

ODD

11

EVEN

12

VST

13

RESET

14

DISCHG

15

VGL

16

VGH1

17

VGH2

18

OUT

19

NEG

20

POS

21

AVDD

22

GND

23

VSENSE

24

EO

25

GST

26

MCLK

27

GCLK

28

BI-SCAN

5

CLK5

8

VGH_R

6

CLK6

4

CLK4

2

CLK2

29

[EP]VGL

D7702

40V

OPT

L7705

BLM18PG121SN1D

OPT

T-Con

<LEVEL SHIFTER BLOCK>

<POWER BLOCK>

77

2011.12.01

FROM SOC

FROM SOC

FROM SOC

FROM SOC

FROM SOC

TO SOC

INSTEAD OF AMCC0208

INSTEAD OF AMCC0209

[Right Source(41PIN LOCATION)]

[Left Source(51PIN LOCATION)]

THIS IS REVERSE PATTERN !!!!

FROM SOC

CH6

CH5

CH4

FROM SOC

FROM SOC

FROM SOC

Copyright © 2012 LG Electronics. Inc. All rights reserved. 
Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 60LM6450

Page 1: ...EL 60LM6450 60LM6450 TA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED LCD TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ...Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 BLOCK DIAGRAM 15 EXPLODED VIEW 16 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...inals 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 m...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent...

Page 5: ...he solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replace...

Page 6: ...cation Safety CE IEC specification EMC CE IEC Wireless Wireless HD Specification Option 4 Model General Specification No Item Specification Remarks 1 Market Asia Oceania Africa Middle East PAL DVB Market Australia New Zealand AU Singapore SG Indonesia ID Malaysia MY Vietnam VN South Africa ZA Iran IR Considering for Israel IL only Analog for A ASIA 2 Broadcasting system 1 PAL SECAM B G D K 2 PAL I...

Page 7: ... 00 50 00 HDTV 720p 8 1280 720 44 96 59 94 HDTV 720p 9 1280 720 45 00 60 00 HDTV 720p 10 1920 1080 31 25 50 00 HDTV 1080i 11 1920 1080 33 75 60 00 HDTV 1080i 12 1920 1080 33 72 59 94 HDTV 1080i 13 1920 1080 56 250 50 HDTV 1080p 14 1920 1080 67 5 60 HDTV 1080p No Resolution H freq kHz V freq Hz Proposed Remark 1 640 x 350 70Hz 31 468 70 09 EGA 2 720 x 400 70Hz 31 469 70 08 DOS 3 640 x 480 60Hz 31 4...

Page 8: ... 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 7 2 PC mode No Resolution H freq kHz V freq Hz Proposed Remark 1 640 x 350 70Hz 31 468 70 09 EGA 2 720 x 400 70Hz 31 469 70 08 DOS 3 640 x 480 60Hz 31 469 59 94 VESA VGA 4 800 x 600 60Hz 3...

Page 9: ...ent Service remote control 7 Push the IN STOP key For memory initialization 3 Main PCB check process APC After Manual Insert executing APC Boot file Download 1 Execute ISP program Mstar ISP Utility and then click Config tab 2 Set as below and then click Auto Detect and check OK message If Error is displayed check connection between computer jig and set 3 Click Read tab and then load download file ...

Page 10: ... When OTP mode is failed ADC calibration should be OK by using External mode 3 1 1 OTP mode 1 Press ADJ key on the Adjustment Remote Control then select 8 ADC Calibration By pressing Enter key enter ADC Calibration menu 2 Set up the ADC Type to OTP then Select Start button by pressing Enter key Component and RGB are Written and display Success or NG 3 1 2 External mode Equipment MSPG 925 series Pa...

Page 11: ...tion 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 Manual W B process using adjust Remote control After enter Service Mode by pushing ADJ key Enter White Balance by pushing key at 9 White Balance After you finished all adjustments Press In start key and compa...

Page 12: ...from HDMI2 1 3D FHD RGB EDID data xvYCC OFF 2 3D FHD RGB EDID data xvYCC OFF NO Item CMD 1 CMD 2 Data 0 Enter download Mode Download Mode In A A 0 0 When transfer the Mode In Carry the command EDID data and Model option download ADC Adjust A E 00 10 Automatically adjustment The use of a internal pattern For Analog For HDMI EDID D sub to D sub DVI D to HDMI or HDMI to HDMI No Item Condition Hex Dat...

Page 13: ... 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 1 Press the Instart key of Adjustment remote control 2 Go to the menu 7 Model Number D L like below photo 3 Input the Factory model name or Serial number like photo 4 Check the mod...

Page 14: ...IC it is working well 4 10 Magic Motion Remote control test 1 Equipment RF Remote control for test IR KEY Code Remote control for test 2 You must confirm the battery power of RF Remote control before test recommend that change the battery per every lot 3 Sequence test 1 if you select the Start OK key on the Adjustment remote control you can pairing with the TV SET 2 You can check the cursor on the...

Page 15: ...1 256Kb M Remote Module Air Cable SI2176 Silicon TUNER USB2 USB3 HDMI4 EPI 50P 50P LVDS 51P EPI 50P 50P LVDS 51P eMMC X 1 4GB USB_WIFI SYSTEM DDR3 X 1600 X 16 2Gb LOCAL DIMMING Sub Micom NEC IR Remote Control SYSTEM DDR3 X 1600 X 16 2Gb SYSTEM DDR3 X 1600 X 16 2Gb SIF TDSS G151D Half NIM L R In SPDIF OUT USB I2S Out MTK T C Demod RGB H V Ethernet CVBS UART HDMI MUX HDCP EEPROM LVDS OR EPI LVDS OR ...

Page 16: ...EXPLODED VIEW 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 X RADIATION Shock Fire or other Hazards Do not modify the original design without p...

Page 17: ..._STB AH26 AVDD33_VGA_STB AK18 AVSS33_VGA_STB AK17 AVDD33_PLLGP AK23 AVSS33_PLLGP AM27 AVDD10_LDO AJ20 GPIO0 H32 GPIO1 F37 GPIO2 F36 GPIO3 G37 GPIO4 G36 GPIO5 G35 GPIO6 G34 GPIO7 H34 GPIO8 L34 GPIO9 L32 GPIO10 K33 GPIO11 K32 GPIO12 H33 GPIO13 L35 GPIO14 K36 GPIO15 J32 GPIO16 J34 GPIO17 K34 GPIO18 K35 GPIO19 K37 GPIO20 J36 GPIO21 J37 GPIO22 J35 GPIO23 J33 GPIO24 G33 GPIO25 H35 GPIO26 H31 GPIO27 F34 ...

Page 18: ...LKN TXBCLKP COMP1_Y TP344 TP361 R349 0 OPT HP_LOUT CI_A_VS1 DSUB_R COMP1_Pb_SOC CI_CD2 TP327 TP364 TP369 TXA3P TXB2N TXB3N C342 100pF 50V TP333 MT5369_TS_IN 3 C339 560pF 50V OPT R325 2K OPT R302 180 C352 0 01uF TXC3N PC_R_IN_SOC DSUB_B R364 100 DSUB_HSYNC_SOC TXD4P TP354 C396 33pF OPT 5V_NORMAL TXD1N C306 0 1uF MODEL_OPT_10 2D 3D_CTL MODEL_OPT_2 PCM_5V_CTL EMMC_RST MODEL_OPT_8 MODEL_OPT_9 VCOM_DYN...

Page 19: ...4 U21 DVSS_93 V21 DVSS_105 W21 DVSS_118 Y21 DVSS_128 AA21 DVSS_138 AB21 DVSS_64 R22 DVSS_75 T22 DVSS_85 U22 DVSS_94 V22 DVSS_106 W22 DVSS_119 Y22 DVSS_129 AA22 DVSS_139 AB22 DVSS_65 R23 DVSS_76 T23 DVSS_86 U23 DVSS_140 AB23 DVSS_96 W6 DVSS_30 G17 DVSS_27 F25 DVSS_109 Y6 DVSS_17 E21 DVSS_25 F21 DVSS_45 L8 DVSS_66 T7 DVSS_7 D11 DVSS_14 E11 DVSS_8 D12 DVSS_18 E22 DVSS_26 F22 DVSS_33 G25 DVSS_136 AB19...

Page 20: ... K2 VDD_5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_7 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9 NT5CB128M16BP DI IC7...

Page 21: ... R2426 1K R2434 47K 1 24V P2400 FW20020 24S OPT 19 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 20 15 10 5 21 22 23 24 C2426 100pF 50V PANEL_VCC 3 5V_ST C2443 0 1uF 50V R2437 10K A_DIM R2422 0 POWER_24_GND R2415 56K 1 C2421 4700pF 50V R2442 10K MTK_EPI R2441 1 8K MTK_EPI 12V R2430 10K RL_ON 3 5V_ST C2413 0 1uF 50V R2401 10K C2402 10uF 16V C2441 3300pF 50V OPT R2403 10K R24000 OPT L2404 2uH C2400 10uF 16V ...

Page 22: ...INTP4 6 P75 KR5 INTP9 SCK01 SCL01 7 P74 KR4 INTP8 SI01 SDA01 8 P73 KR3 SO01 9 P72 KR2 SO21 10 P71 KR1 SI21 SDA21 11 P70 KR0 SCK21 SCL21 12 P30 INTP3 RTC1HZ SCK11 SCL11 13 P50 INTP1 SI11 SDA11 14 P51 INTP2 SO11 15 P17 TI02 TO02 16 P16 TI01 TO01 INTP5 17 P15 PCLBUZ1 SCK20 SCL20 18 P14 RXD2 SI20 SDA20 19 P13 TXD2 SO20 20 P12 SO00 TXD0 TOOLTXD 21 P11 SI00 RXD0 TOOLRXD SDA00 22 P10 SCK00 SCL00 23 P146 ...

Page 23: ...D1 15 DDC_CLK D0 _HDMI2_JACK DDC_SDA_3_JACK CK _HDMI4_JACK D1 _HDMI1_SOC D0 _HDMI2_JACK CK _HDMI4_JACK DDC_SCL_2_JACK R3310 1K DDC_SCL_4_JACK DDC_SCL_3_JACK CK _HDMI1_SOC D2 _HDMI2_JACK HDMI_HPD_1_SOC R3315 100 5V_HDMI_1_SOC 5V_NORMAL DDC_SDA_4_JACK 5V_HDMI_1_SOC R3304 1K DDC_SCL_1_SOC D1 _HDMI4_JACK R3323 47K DDC_SDA_4_JACK R3302 100 DDC_SCL_1_SOC D1 _HDMI4_JACK R3306 4 7K HDMI_INTERNAL_EDID DDC_...

Page 24: ... 13 14 14 15 15 16 16 R3646 10K C3615 0 1uF 16V RGB_DDC_SDA SPDIF_OUT R3615 33 C3634 18pF 50V EDID_WP PC_R_IN 5V_NORMAL DSUB_HSYNC DSUB_VSYNC D3616 30V OPT PC_L_IN R3642 2 7K RGB_5V RGB_5V IC3600 M24C02 RMN6T RGB_EDID 3 E2 2 E1 4 VSS 1 E0 5 SDA 6 SCL 7 WC 8 VCC SOC_TX SOC_RX D3620 MMBD6100 A2 C A1 R3647 100 RGB_DEBUG D3623 5 6V OPT D3611 5 6V OPT D3612 5 6V OPT D3600 20V OPT D3601 20V OPT D3622 5 ...

Page 25: ...D FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC R3700 10K HP_OUT HP_LOUT 3 3V_NORMAL JK3700 KJA PH 0 0177 EAG61030001 HP_OUT 3 DETECT 4 L 5 GND 1 R HP_DET HP_ROUT VA3700 5 6V OPT VA3700 1 5 6V ESD_MTK_HP_OUT VA3700 2 5 6V ESD_LG1152_HP_OUT 37 JACK_COMMON 2011 11 21 ESD for LG1152 ESD for MTK Copyright 2012 LG Electronics Inc All rights reserved Only for training and service purpo...

Page 26: ...CT 4 M4 5 M5_GND 1 M1 6 M6 AV1_CVBS_IN COMP1_Y R3821 100 RS232 3 3V_NORMAL R3820 100 RS232 3 5V_ST 12V_COMMERCIAL_OUT 12V_COMMERCIAL_OUT 3 5V_ST R3834 10K OPT_RS232 SOC_RX 3 5V_ST SOC_TX P3800 12507WS 04L UART_4PIN_STRAIGHT 1 2 3 4 5 R3810 10K R3806 10K D3803 5 6V OPT D3800 5 6V OPT D3804 20V OPT D3805 20V OPT D3801 5 6V OPT D3802 5 6V OPT D3801 1 5 6V ESD_MTK D3802 1 5 6V ESD_MTK D3800 1 5 6V ESD...

Page 27: ...2 MMBT3904 NXP COMMERCIAL_IR_EU E B C Q4104 MMBT3904 NXP COMMERCIAL_IR E B C R4101 1K COMMERCIAL_IR R4109 1K COMMERCIAL_IR_EU R4115 3 3K COMMERCIAL_IR R4103 3 3K COMMERCIAL_IR R4107 10K IR_BYPASS P4102 12507WR 10L GP4_IR_10P 1 2 3 4 5 6 7 8 9 10 11 D4106 20V ADUC 20S 02 010L OPT D4105 20V ADUC 20S 02 010L OPT D4101 5 6V AMOTECH CO LTD OPT D4100 5 6V AMOTECH CO LTD OPT D4104 5 6V AMOTECH CO LTD OPT...

Page 28: ...uF 10V 5V_USB 3 3V_NORMAL USB_OCD3 C4301 22uF 10V R4332 10K POWER_ON OFF2_4 C4331 0 1uF 16V 12V L4307 3 6uH C4341 4 7uF 10V R4342 10K 5 L4306 BLM18PG121SN1D USB_CTL3 C4325 10uF 16V C4342 100pF 50V USB_DCDC_SN1104041 IC4306 1 BD86180MUV DEV_USB_DCDC_BD86180 3 SS 2 COMP 4 RT 1 EN 6 CTL1 5 CTL2 7 FLG2 8 FLG1 9 USB_OUT2 10 GND_1 11 GND_2 12 USB_OUT1 13 USB_IN_1 14 USB_IN_2 15 USB_IN_3 16 SW_1 17 SW_2 ...

Page 29: ...MBOL MARK OF THE SCHEMETIC M_RFModule_ISP M_REMOTE_RX M_REMOTE_TX 3 3V_NORMAL L4800 120 ohm M_REMOTE M_RFModule_RESET C4800 0 1uF P4800 12507WR 08L M_REMOTE 1 3 3V 2 GND 3 RX 4 TX 5 RESET 6 DC 7 DD 8 GND 9 AR4800 100 1 16W M_REMOTE 3D_SYNC_RF 3D_SYNC_RF ZigBee_Radio Pulse M_REMOTE OPTION ALL M_REMOTE OPTION 48 MOTION REMOTE 2011 11 21 Only For PDP Copyright 2012 LG Electronics Inc All rights reser...

Page 30: ...N_C D4 GN_A C5003 0 01uF 50V EPHY_RDP LAN_JACK_POWER D5000 5 5V OPT D5002 5 5V OPT D5003 5 5V OPT D5001 5 5V OPT D5001 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5003 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5002 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5000 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5003 1 ADUC 5S 02 0R5L ESD_MTK D5000 1 ADUC 5S 02 0R5L ESD_MTK D5002 1 ADUC 5S 02 0R5L ESD_MTK D5001 1 ADUC 5S 02 0R5L ESD_MTK...

Page 31: ... 0 1uF C5413 16V AUD_LRCH L5401 BLM18PG121SN1D 24V_AMP SPK_R C5431 390pF 50V 24V_AMP D5403 100V 1N4148W OPT C5414 10uF 10V AMP_RESET_N R5408 12 C5433 1uF 25V L5404 NRS6045T100MMGK 10 0uH SPK_L C5435 0 47uF 50V C5428 1uF 25V I2C_SCL1 C5409 10uF 10V OPT SPK_L P5400 WAFER ANGLE 1 2 3 4 AMP_MUTE 0 1uF C5439 50V C5417 22000pF 50V R5400 10K R5410 12 SPK_R 0 1uF C5412 16V 24V C5410 10uF 10V OPT 0 1uF C54...

Page 32: ..._HP_MUTE 3 3V_NORMAL R6106 0 OPT R6102 4 7K OPT 3 3V_NORMAL R6107 1K HP_LOUT_MAIN L6100 120 ohm BLM18PG121SN1D R6103 4 7K C6105 10uF 10V IC6100 TPA6132A2 EAN60724701 3 INR 2 INL 4 INR 1 INL 5 OUTR 6 G0 7 G1 8 HPVSS 9 CPN 10 PGND 11 CPP 12 HPVDD 13 EN 14 VDD 15 SGND 16 OUTL C6107 0 1uF 16V R6101 OPT Q6100 MMBT3904 NXP E B C C6100 1uF 10V C6103 1uF 10V C6108 2 2uF 10V C6106 2 2uF 10V C6109 2 2uF 10V...

Page 33: ...21 D1 22 D2 23 D3 24 D4 25 D5 26 D6 27 D7 28 GND_2 29 GND_3 30 1 23V_S2_DEMOD 31 S2_RESET 38 SHIELD 32 3 3V_S2_DEMOD 33 S2_F22_OUTPUT 34 S2_SCL 35 S2_SDA 36 LNB 37 GND_4 TU6502 TDSQ H051F CHB_V 1 5V SPLITTER 2 RESET 3 TU_SCL 4 TU_SDA 5 M_ 3 3V 6 M_SIF 7 M_ 1 8V 8 M_CVBS 9 M_IF_AGC 10 M_DIF P 11 M_DIF N 12 S_3 3V 13 S_1 8V 14 S_CVBS 15 GND_1 16 SD_ERROR 17 SD_SYNC 18 SD_VALID 19 SD_MCLK 20 SD_SERIA...

Page 34: ...AL EXT_AMP_RESET 12V_COMMERCIAL_OUT SPK_L_OUT_COMMERCIAL SPK_R_OUT_COMMERCIAL L7000 BLM18PG121SN1D JK7000 KJA PH 0 0177 EAG61030001 COMMER_EXT_AMP_JACK 3 DETECT 4 L 5 GND 1 R SPK_R_OUT_COMMERCIAL SPK_L_OUT_COMMERCIAL Q7001 MMBT3904 NXP E B C 12V_EXT_PWR_DET 3 5V_ST C7002 22uF 25V R7005 22K R7004 100K R7006 10K C7003 22uF 25V C7000 470pF 50V C7001 1uF 25V L7001 BLM18PG121SN1D D7000 5 6V D7001 5 6V ...

Page 35: ...C 3 NC 4 NC 5 NC 6 AUO_65_MIRROR 7 LVDS_SEL 8 NC 9 NC 10 L DIM_ENABLE 11 GND 12 RA0N 13 RA0P 14 RA1N 15 RA1P 16 RA2N 17 RA2P 18 GND 19 RACLKN 20 RACLKP 21 GND 22 RA3N 23 RA3P 24 RA4N 25 RA4P 26 GND 27 BIT_SEL 28 RB0N 29 RB0P 30 RB1N 31 RB1P 32 RB2N 33 RB2P 34 GND 35 RBCLKN 36 RBCLKP 37 GND 38 RB3N 39 RB3P 40 RB4N 41 RB4P 42 GND 43 GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49 VLCD 50 VLCD 51 VLCD 52 G...

Page 36: ...RITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC I2C_SCL1 L DIM0_SCLK R7601 10K L DIM_OUT 3 3V_NORMAL L DIM0_MOSI R7607 4 7K L DIM_OUT R7606 33 L DIM_OUT P7600 12507WR 08L L DIM_OUT 1 2 3 4 5 6 7 8 9 I2C_SDA1 L DIM0_VS R7600 10K OPT AR7600 33 1 16W L DIM_OUT LOCAL DIMMING To LED DRIVER 76 LOCAL DIMMING 2011 12 13 Copyright 2012 LG Electronics Inc All rights reserved Only for training and ser...

Page 37: ...744 1uF 50V C7749 1uF 50V PMIC_RESET D7703 100V 1N4148W D7705 100V 1N4148W Q7701 MMBT3906 NXP E B C D7704 100V 1N4148W D7706 100V 1N4148W C7728 10uF 10V OPT C7712 1uF 10V C7741 10uF 16V EPI_LOCK6 EPI_LOCK6_SOURCE 3 3V_NORMAL C7732 0 1uF 50V C7727 0 1uF 50V C7754 0 1uF 50V Q7700 MMBT3904 NXP E B C D7700 40V SX34 D7701 40V SX34 Q7702 MMBT3904 NXP E B C Q7703 MMBT3904 NXP E B C R7758 10K R7756 10K R7...

Page 38: ...C_109 N10 NC_110 N11 NC_111 N12 NC_112 N13 NC_113 N14 NC_114 P1 NC_115 P2 NC_117 P8 NC_118 P9 NC_120 P11 NC_121 P12 NC_122 P13 NC_123 P14 DUMMY_1 DU1 DUMMY_2 DU2 DUMMY_3 DU3 DUMMY_4 DU4 DUMMY_5 DU5 DUMMY_6 DU6 DUMMY_7 DU7 DUMMY_8 DU8 DUMMY_9 DU9 DUMMY_10 DU10 DUMMY_11 DU11 DUMMY_12 DU12 DUMMY_13 DU13 DUMMY_14 DU14 DUMMY_15 DU15 DUMMY_16 DU16 IC8100 2 KLM2G1HE3F B001 SAMSUNG_EMMC_2GB DAT0 A3 DAT1 A...

Page 39: ...R THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 3 5V_ST L8900 BLM18PG121SN1D LOGO_LIGHT P8900 12507WR 03L LOGO_LIGHT 1 2 3 4 Q8900 MMBT3904 NXP LOGO_LIGHT E B C LOGO_LIGHT R8900 100 LOGO_LIGHT R8903 1K LOGO_LIGHT 3 5V_ST R8901 10K LOGO_LIGHT R8902 10K OPT C8900 0 1uF 16V LOGO_LIGHT Place Near Micom Copyright 2012 LG Electronics Inc All rights reserved Only for training and service pu...

Page 40: ......

Page 41: ...2012 LED LCD TV Engineering guide ...

Page 42: ...t external device color error 6 6 B Power error No power 7 7 Off when on off while viewing power auto on off 8 8 C Audio error No audio Normal video 9 9 Wrecked audio discontinuation noise 10 10 D Function error No response in remote controller key error recording error memory error 11 11 External device recognition error 12 12 E Noise Circuit noise mechanical noise 13 13 F Exterior error Exterior...

Page 43: ...on diagram A8 10 Tuner Checking Part A9 11 Check Link Cable LVDS reconnection condition A10 A11 A10 32 37 42 47 55 A11 32 AUO 12 Adjustment Test pattern ADJ Key A12 13 A Video error_Vertical Horizontal bar residual image light spot LCD TV connection diagram A8 14 Check Link Cable LVDS reconnection condition A10 A11 A10 32 37 42 47 55 A11 32 AUO 15 Adjustment Test pattern ADJ Key A12 16 Appendix De...

Page 44: ... Inverter or module N Repair Power Board or parts End Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 13 LCD TV Error symptom A Video error No video Normal audio A4 A1 A2 A28 A7 A3 First of all Check whether all of cables between board is insert...

Page 45: ...wer Board 3 5V 12V 20V or 24V No Video No audio Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A4 Established date Revised date 2 13 LCD TV Error symptom 2010 12 14 ...

Page 46: ...r Set Top Box Different maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Normal Picture Y Close Menu Setup Booster By using Digital signal level meter By using Diagnostics menu on OSD Menu Set up Support Signal Test Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N N...

Page 47: ...t By connecting RF Cable at other equipment Set Top Box Different maker TV etc Y Change satellite setting match with installed ANT N Normal Picture Y Close N A7 Standard Repair Process Established date Revised date 3 13 LCD TV Error symptom 2011 01 24 Check satellite setting Check LNB frequency Check satellite Check Satellite connection DiSEqC motor etc Normal setting Contact with signal distribut...

Page 48: ... normal External Input Component error Check external device and cable Y External device Cable normal RGB HDMI DVI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A8 N Y End Replace module Request repair for external device cable Color error Check Test pattern A12 A10 A11 Standard Repair Process Established date Revised date 4 13 LCD TV Error s...

Page 49: ...f External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc N Y Replace Main B D Screen normal Check screen condition by input External Input Component RGB HDMI DVI Request repair for external device Component error RGB error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pat...

Page 50: ...perly Check Power LED Replace Power B D Measure voltage of each output of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 3 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A19 A4 Standard Repair Process Established date Revised date 6 13 LCD TV Error symptom Stand By Red Operating white Close 2010 12 14 ...

Page 51: ...ff List Explanation Normal POWEROFF_REMOTEKEY Power off by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power off by End of Rec...

Page 52: ...of Power Board Normal voltage Y N Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A24 A25 Disconnection Established date Revised date 8 13 LCD TV Error symptom Standard Repair Process 2010 12 14 ...

Page 53: ... audio Discontinuation Noise only for External Input Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 24V Replace Main B D In case of External Input signal error Chec...

Page 54: ...k R C Operating When turn off light in room Check Replace Battery of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A27 Normal Voltage Close N N Check 3 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A4 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A27 Replace Main B D Y A27 Standard Repair Process...

Page 55: ...ut And Component Recognition error Check and fix external device cable RGB HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 11 13 LCD TV Error symptom Standard Repair Process 2010 12 14 ...

Page 56: ...abinet refer to the KMS fix information and then proceed as shown in the solution manual For models without any fix information provide the description OR Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise me...

Page 57: ...damage Cabinet damage Replace cabinet Replace remote controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Adjust VCOM Established date Revised date 13 13 LCD TV Error symptom Standard Repair Process A28 2010 12 14 ...

Page 58: ...hod A22 27 B Power error_Off when on off while viewing POWER BOARD PIN voltage checking method A19 28 C Audio error_No audio Normal video Checking method in menu when there is no audio A24 29 Voltage and speaker checking method when there is no audio A25 30 C Audio error_Wrecked audio discontinuation Voltage and speaker checking method in case of audio error A25 31 D Function error_ No response in...

Page 59: ...ARD Standard Repair Process Detail Technical Manual Check White Balance value A Video error_No video Normal audio ALL MODELS A4 Established date Revised date Error symptom Content LCD TV Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 7 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after r...

Page 60: ... Content LCD TV Check the DC 24V 12V 3 5V 24 Pin Power Board Main Board Common SMAW200 H24S YEONHO 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3 5V 10 3 5V 11 3 5V 12 3 5V 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On off 19 12V 20 Lamp A Dim LED N C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2 24 Error out Edge LED 2010 12 14 ...

Page 61: ...nal is strong use the attenuator 10dB 15dB 20dB etc Standard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop ALL MODELS A6 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 62: ...checking method A Video error_Video error video lag stop 1 Checking method for remote controller for adjustment Press the IN START with the remote controller for adjustment Version ALL MODELS A7 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 63: ...TV connection diagram 1 A Video error _Vertical Horizontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A8 Established date Revised date Error symptom Content LCD TV ALL MODELS 2010 12 14 ...

Page 64: ...rnal device is connected 2 After measuring each voltage from power supply finally replace the MAIN BOARD Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop ALL MODELS A9 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 65: ...A Video error_Color error You can view 6 types of patterns using the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A12 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 66: ...CNT Broken T Con Defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Appendix Exchange T Con Board 1 ...

Page 67: ...normal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange T Con Board 2 ...

Page 68: ...Appendix Exchange PSU LED driver No Light Dim Light Dim Light Dim Light No picture Sound Ok ...

Page 69: ...Appendix Exchange the Module 1 Panel Mura Light leakage Press damage Crosstalk Crosstalk Press damage Panel Mura Light leakage Press damage Un repairable Cases In this case please exchange the module ...

Page 70: ...B IC Defect Vertical Line Source TAB IC Defect Vertical Block Source TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Appendix Exchange the Module 2 Un repairable Cases In this case please exchange the module ...

Page 71: ...Manual Check front display LED B Power error _No power A17 Established date Revised date Error symptom Content LCD TV ST BY condition Red Power ON condition white Front LED control Menu Æ Option Æ Power Indicator Æ Standby light ON 2010 12 14 ...

Page 72: ...for st by purpose When st by only 3 5V is normally on Check the DC 20V 24V 12V 3 5V Edge LED 2010 12 14 Edge LED 24 Pin Power Board Main Board Common SMAW200 H24S YEONHO 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3 5V 10 3 5V 11 3 5V 12 3 5V 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On off 19 12V 20 Lamp A Dim LED N C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2...

Page 73: ...LCD TV Check power on pin is high 2010 12 14 24 Pin Power Board Main Board Common SMAW200 H24S YEONHO 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3 5V 10 3 5V 11 3 5V 12 3 5V 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On off 19 12V 20 Lamp A Dim LED N C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2 24 Error out Edge LED Edge LED ...

Page 74: ... for adjustment 2 Check the entry into adjustment item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A22 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 75: ... AUDIO function of the Menu 3 Select TV Speaker from Off to On Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A24 Established date Revised date Error symptom Content LCD TV 2010 12 14 ...

Page 76: ...minal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video ALL MODELS A25 Established date Revised date Error symptom Content LCD TV 24 Pin Power Board Main Board Common SMAW200 H24S YEONHO 1 Power on 2 20V 24V 3 20V 24V 4 20V 24V 5 GND 6 GND 7 GND 8 GND 9 3 5V 10 3 5V 11 3 5V 12 3 5V 13...

Page 77: ... Analog Tester needle moves slowly and defective when it does not move at all Standard Repair Process Detail Technical Manual Remote controller operation checking method D Function error_ No response in remote controller key error ALL MODELS A27 Established date Revised date Error symptom Content LCD TV P4102 1 SCL 2 SDA 3 GND 4 KEY1 5 KEY2 6 St 3 5V 7 GND 8 RED_LED 9 IR 10 GND 2010 12 14 ...

Page 78: ...select V COM As pushing the right or the left button on the remote controller And find the V COM value Which is no or minimized the Flicker If there is no flicker at default value Press the exit key and finish the VCOM adjustment Push the OK key to store the value Then the message Saving OK is pop Press the exit key to finish V COM adjustment A28 Established date Revised date Error symptom Content...

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