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THERMAL

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.

FE_DEMOD1_TS_DATA[5]

FE_DEMOD1_TS_DATA[0]

FE_DEMOD1_TS_DATA[6]

FE_DEMOD1_TS_DATA[7]

FE_DEMOD1_TS_DATA[4]

FE_DEMOD1_TS_DATA[2]

FE_DEMOD1_TS_DATA[1]

FE_DEMOD1_TS_DATA[3]

+3.3V_TU

+1.8V_TU

+3.3V_NORMAL

+3.3V_TU

TU_GND_A

TU_GND_A

+1.23V_D_Demod

+3.3V_TU

TU_GND_A

+5V_NORMAL

TU_GND_A

TU6400-*1
TDSS-G501D

DVB_H/NIM_H

5

3.3V

11

DLIF[N]

2

RESET

10

DLIF_[P]

4

SDA

1

NC

9

IF_AGC

8

ALIF_[P]

3

SCL

7

1.8V

6

ALIF_[N]

12

SHIELD

A1

A1

B1

B1

TU_GND_B

TU_GND_B

TU_GND_B

RF_SWITCH_CTL_TU

I2C_SDA6_TU

+3.3V_TU

TU_CVBS_TU

TU_+1.8V_TU

I2C_SCL6_TU

CN_RESET_TU

Power_D_Demod_TU

IF_AGC_TU

TUNER_SIF_TU

+3.3V_TU

IF_N

/TU_RESET1_TU

IF_P

FE_DEMOD1_TS_ERROR

FE_DEMOD1_TS_DATA[0]

FE_DEMOD1_TS_VAL

FE_DEMOD1_TS_CLK

FE_DEMOD1_TS_SYNC

I2C_SDA4_TU

+3.3V_TU

I2C_SCL4_TU

LNB_TX-1

LNB_OUT

/S2_RESET_TU

+1.23V_D_Demod_TU

TU_GND_A

TU_GND_B

LNB_TX

LNB_OUT

FE_DEMOD1_TS_CLK

+3.3V_TU

+1.23V_D_Demod

IF_AGC

+1.8V_TU

FE_DEMOD1_TS_ERROR

I2C_SCL6_TU

/TU_RESET1

TU_+1.8V_TU

+3.3V_TU

LNB_TX

+3.3V_TU

I2C_SDA4_TU

I2C_SCL6

Power_D_Demod_TU

FE_DEMOD1_TS_VAL

CN_RESET_TU

+3.3V_TU

+1.8V_TU

IF_AGC_TU

IF_P

+1.23V_D_Demod

+3.3V_TU

LNB_TX-1

RF_SWITCH_CTL_TU

TUNER_SIF

I2C_SDA6

FE_DEMOD1_TS_VAL

FE_DEMOD1_TS_ERROR

/TU_RESET1_TU

I2C_SCL4

FE_DEMOD1_TS_CLK

TUNER_SIF_TU

/S2_RESET

RF_SWITCH_CTL_50

TU_CVBS

+1.23V_D_Demod_TU

IF_N

+3.3V_TU

I2C_SCL4_TU

LNB_OUT

/S2_RESET

/S2_RESET_TU

FE_DEMOD1_TS_SYNC

I2C_SDA6_TU

IF_N

IF_P

RF_SWITCH_CTL

LNB_OUT

+3.3V_TU

+3.3V_TU

TU_CVBS_TU

FE_DEMOD1_TS_SYNC

R6508-*1

1K

5%

TU_N/M/W_CN/TW/BR/CO

+3.3V_TU

I2C_SDA4

+3.3V_TU

RF_SWITCH_CTL_50

FE_DEMOD1_TS_DATA[5]

FE_DEMOD1_TS_DATA[4]

FE_DEMOD1_TS_DATA[1]

FE_DEMOD1_TS_DATA[3]

FE_DEMOD1_TS_DATA[7]

FE_DEMOD1_TS_DATA[6]

FE_DEMOD1_TS_DATA[2]

FE_DEMOD1_TS_DATA[2]

FE_DEMOD1_TS_DATA[7]

FE_DEMOD1_TS_DATA[4]

FE_DEMOD1_TS_DATA[0-7]

FE_DEMOD1_TS_DATA[0]

FE_DEMOD1_TS_DATA[3]

FE_DEMOD1_TS_DATA[1]

FE_DEMOD1_TS_DATA[6]

FE_DEMOD1_TS_DATA[5]

/TU_RESET2

TU_GND_B

FE_DEMOD3_TS_CLK

FE_DEMOD3_TS_SYNC

FE_DEMOD3_TS_ERROR

FE_DEMOD2_TS_ERROR

FE_DEMOD2_TS_DATA

FE_DEMOD3_TS_VAL

FE_DEMOD2_TS_VAL

FE_DEMOD2_TS_CLK

FE_DEMOD3_TS_DATA

FE_DEMOD2_TS_SYNC

TU_GND_A

TU_GND_B

TUNER_SIF_TU

FE_LNA_Ctrl2

I2C_SCL6_TU

TU_+1.8V_TU

RF_SWITCH_CTL_TU

+3.3V_TU

TU_PIN2

I2C_SDA6_TU

FE_LNA_Ctrl1

FE_DEMOD1_TS_DATA[0]

FE_DEMOD2_TS_VAL

FE_DEMOD1_TS_DATA[4]

FE_DEMOD3_TS_VAL

FE_DEMOD1_TS_DATA[4]

FE_DEMOD3_TS_DATA

FE_DEMOD1_TS_DATA[2]

FE_DEMOD1_TS_DATA[1]

FE_DEMOD3_TS_CLK

FE_DEMOD3_TS_SYNC

FE_DEMOD1_TS_SYNC

FE_DEMOD1_TS_VAL

FE_DEMOD1_TS_CLK

FE_DEMOD1_TS_DATA[3]

FE_DEMOD1_TS_DATA[3]

FE_DEMOD1_TS_CLK

FE_DEMOD1_TS_DATA[2]

FE_DEMOD2_TS_CLK

FE_DEMOD1_TS_VAL

FE_DEMOD1_TS_SYNC

FE_DEMOD1_TS_DATA[0]

FE_DEMOD2_TS_DATA

FE_DEMOD2_TS_SYNC

FE_DEMOD1_TS_DATA[1]

FE_DEMOD3_TS_ERROR

FE_DEMOD2_TS_ERROR

/TU_RESET2

TU_PIN2

R6502-*1

1K

5%

TU_N_BR

C6446
10uF
10V

R6423
10K

C6449

10uF

10V

R6401
1

R6427
20K
1%

IC6403

AZ1117BH-1.8TRE1

1

ADJ/GND

2

OUT

3

IN

C6426

0.1uF

16V

R6428
11K
1%

C6429

22uF

10V

R6429
10K
1%

L6404

BLM18PG121SN1D

C6433

10uF

10V

C6430

0.1uF

16V

R6438 
0

NON_TU_H

L6403

BLM18PG121SN1D

R6431
1

C6435
1uF

IC6401

AP2132MP-2.5TRG1

EAN61387601

3

VIN

2

EN

4

VCTRL

1

PG

5

NC

6

VOUT

7

ADJ

8

GND

9

[EP]

0.1uF

C6440

R6439 
0

NON_TU_H

R6604
0

TU_S/N/Q/W

R6610
0

TU_W

R6609 
0

TU_W

R6605

0

TU_S/N/Q/W

R6608 
0

TU_W

R6606

0

TU_S/N/Q/W

R6611

0

TU_W

R6607

0

TU_S/N/Q/W

Q6500
MMBT3906(NXP) 

OPT

E

B

C

R6500

1K

TU_N/M_TW/BR

C6514

100pF
50V

TU_W_BR/TW/CO/JP

L6507

BLM18PG121SN1D

TU_Q/W_KR/BR/TW/CO/JP

Q6501
MMBT3906(NXP) 

TU_A_GLOBAL_6/7

E

B

C

R6503

22

TU_Q/W

C6501
0.1uF

TU_N_TW/BR

R6508
100

TU_S/N/Q/W

C6508
47pF
50V

TU_N/Q/W_KR/TW/BR/CO/JP

R6520
200

TU_A_GLOBAL_6/7

R6504

22

TU_Q/W

C6515
0.1uF

TU_Q/W

L6508

BLM18PG121SN1D

TU_Q/W_KR/BR/TW/CO/JP

R6502

10

TU_N/M

R6516

470

OPT

C6506
47pF
50V

TU_N/Q/W_KR/TW/BR/CO/JP

R6518
82

OPT

R6515
4.7K

OPT

C6522

0.1uF

16V

OPT

R6506

100

TU_S/Q/_T/US/KR/TW

R6521

200

TU_A_GLOBAL_6/7

L6502

BLM18PG121SN1D

TU_N/M_CN/BR

C6516

0.1uF
16V

TU_N/M/Q/W_KR/CN/BR/JP

R6534

0

TU_A_GLOBAL_6/7

L6500

BLM18PG121SN1D

C6504
18pF
50V

TU_Q/W_KR/BR/CO/TW/JP

C6554
100pF
50V

C6503
0.1uF

16V

TU_S/N/Q_T/US/KR/TW

R6510

33

C6550
0.1uF

16V

TU_W_BR/TW/CO/JP

R6509

33

R6513

10

TU_Q

R6505
10K

TU_N/M_TW/BR

L6501

BLM18PG121SN1D

TU_Q/W

C6521
0.1uF

OPT

C6520

0.1uF

16V

TU_S/N/Q/W

C6500
18pF
50V

TU_Q/W_KR/BR/CO/TW/JP

C6531
0.1uF

C6538
10uF

10V

C6542
0.1uF

C6406
0.1uF
16V

TU_N_BR

R6411

0

TU_J_JP

R6407

0

TU_J_JP

R6405

0

TU_J_JP

R6406

0

TU_J_JP

R6409

0

TU_J_JP

R6412

0

TU_J_JP

R6410

0

TU_J_JP

R6408

0

TU_J_JP

C6602

0.1uF

TU_M/W

R6602
100

TU_M/W

JP8830

JP8831

JP8832

JP8833

C6400
0.1uF
16V

OPT

C6401
0.1uF
16V

OPT

R6400
0

C6502

0.1uF

TU_M/W_BR/TW/CO/CN

R6403

0

R6402

0

OPT

R6601

10K

TU_W

R6600

10K

TU_W

C6600
0.1uF

16V

TU_W

C6601
0.1uF

16V

TU_W

R6501 1K

TU_M/W_BR/TW/CO/CN

R6506-*1

100

TU_W_BR/TW

R6513-*1

1K

5%

TU_W_BR/TW/CO/JP

TU6405

TDSH-G501D(B) 

DVB_H/NIM_H

5

+B1[3.3V]

11

DIF[N]

2

RESET

10

DIF[P]

4

SDA

1

NC

9

IF_AGC

8

CVBS

3

SCL

7

+B2[1.8V]

6

SIF

A1

A1

B1

B1

A2

A2

B2

B2

TU6403

TDSN-B601F(B)

TU_BR

1

RF_S/W_CTL

2

RESET_TUNER

3

SCL

4

SDA

5

+B1[3.3V]

6

SIF

7

+B2[1.8V]

8

CVBS

9

NC_1

10

NC_2

11

NC_3

12

+B3[3.3V]

13

+B4[1.23V]

14

RESET_DEMOD

15

GND

16

ERROR

17

SYNC

18

VALID

19

MCLK

20

DATA

21

NC_4

22

NC_5

23

NC_6

24

NC_7

25

NC_8

26

NC_9

27

NC_10

28

SHIELD

A1

A1

B1

B1

TU6406

TDSQ-G601D(B) 

TU_T2/C/S2_H

1

NC_1

2

RESET

3

SCL

4

SDA

5

+B1[3.3V]

6

SIF

7

+B2[1.8V]

8

CVBS

9

NC_2

10

NC_3

11

NC_4

12

NC_5

13

NC_6

14

NC_7

15

GND_1

16

ERROR

17

SYNC

18

VALID

19

MCLK

20

D0

21

D1

22

D2

23

D3

24

D4

25

D5

26

D6

27

D7

28

GND_2

29

GND_3

30

+B3[1.23V]

31

DEMOD_RESET

38

SHIELD

32

+B4[3.3V]

33

F22_OUTPUT

34

DEMOD_SCL

35

DEMOD_SDA

36

LNB

37

GND_4

A1

A1

B1

B1

C6604

1000pF

TU_M_CN

C6603

1000pF

TU_M_CN

TU6406-*1

TDSQ-G501D(B)

T/C/S2

1

NC_1

2

RESET

3

SCL

4

SDA

5

+B1[3.3V]

6

NC_2

7

+B2[1.8V]

8

NC_3

9

IF_AGC

10

DIF[P]

11

DIF[N]

12

NC_4

13

NC_5

14

NC_6

15

GND_1

16

ERROR

17

SYNC

18

VALID

19

MCLK

20

D0

21

D1

22

D2

23

D3

24

D4

25

D5

26

D6

27

D7

28

GND_2

29

GND_3

30

+B3[1.23V]

31

DEMOD_RESET

38

SHIELD

32

+B4[3.3V]

33

F22_OUTPUT

34

DEMOD_SCL

35

DEMOD_SDA

36

LNB

37

GND_4

A1

A1

B1

B1

C6503-*1
0.1uF

16V

TU_W_BR/TW

C6516-*1

0.1uF
16V

TU_W_BR/TW/CO

C6448
10uF
10V

R6612

0

TU_Q

TU6401

TDSW-J501F(B) 

TU_W_JP

1

+3.3V_SPLITTER

2

RESET_T1

3

SCL_T

4

SDA_T

5

+3.3V_T1

6

NC_1

7

+1.8V_T1

8

NC_2

9

NC_3

10

NC_4

11

NC_5

12

+3.3V_T2

13

+1.8V_T2

28

GND_2

29

GND_3

30

+B5[1.23V]

31

D_RESET

36

LNB

32

+B6[3.3V]

33

GND_4

34

D_SCL

35

D_SDA

GND_5

37

GND_6

38

GND_7

39

TS1_ERROR

40

TS1_SYNC

41

TS1_VALID

42

TS1_MCLK

43

TS1_DATA

44

TS2_ERROR

45

TS2_SYNC

46

TS2_VALID

47

TS2_MCLK

48

TS2_DATA

49

NC_6

50

RESET_T2

51

LNA_CTRL_1

57

LNA_CTRL_2

58

SHIELD

59

NC_7

55

+3.3V[S_TUNER]

54

SDA_S

53

SCL_S

52

NC_8

56

A1

A1

B1

B1

TU_GND_A

TU6400

TDSS-H501F(B) 

ATSC_H/NIM_H_H501F

5

+B1[3.3V]

11

DIF[N]

2

RESET

10

DIF[P]

4

SDA

1

NC_1

9

IF_AGC

8

NC_3

3

SCL

7

+B2[1.8]

6

NC_2

12

SHIELD

A1

A1

B1

B1

Vout=0.6*(1+R1/R2)

Tuner

mA(MAX)

T2 : Max 1.7A

else : Max mA

R1

TUNER MULTI-OPTION

R2

else : Max 0.7A

GND seperation for ASIA tuner

CHB : Max mA

2A

20120813 CJ.LIM
EBL61240501

20120813 CJ.LIM
EBL61240701

LN4600

2013.01.02

8     8

TUNER

20120813 CJ.LIM
EBL61240801

GND seperation for CHINA tuner

35

18

26

Signal to Signal Width = 12mils

4

30

close to Tuner

22

33

10

32

close to Tuner

5

3

7

6

27

24

23

1608 perallel 
because of derating

9

11

17

21

25

3. Signal Width >= 12mils

1. should be guarded by ground

8

2. No via on both of them

close to TUNER

2

36

should be guarded by ground

12

31

14

20

Ground Width >= 24mils

1

34

19

16

13

close to TUNER

24

21

8

14

25

27

3

18

35

30

36

26

16

10

32

7

12

23

11

34

1

5

31

2

19

33

20

13

4

22

6

17

9

Close to the tuner

49

46

47

44

40

43

41

45

48

42

57

58

50

55

56

51

54

52

53

DEMOD_TSDATA0      Ext_Ts_D0

DEMOD_TSSYNC       Ext_TS_Sync

DEMOD_TSDATA1      EXT2_Ts_CLK

DEMOD_TSCLK        Ext_TS_CLK

DEMOD_TSDATA3      EXT2_TS_Sync

USE Two serial TS Port for Japan : MTK

DEMOD_TSVAL         Ext_Ts_VAL

DEMOD_TSDATA2      EXT2_TS_Val

A2 Ball Name       Function

DEMOD_TSDATA4      EXT2_TS_D0

40

49

43

48

47

46

45

44

41

42

20120912 CJ.LIM

EAX65085301

20120918 CJLIM
ADD JIGPOINT-GND FOR JIG

20121029 LCD-TV

[DV2]

13’ Tuner Type for Global 
TDS’S’-G501D : T/C Half NIM Horizontal Type
TDS’Q’-G501D : T/C/S2 Combo Horizontal type
TDS’Q’-G601D : T2/C/S2 Combo Horizontal Type
TDS’Q’-G651D : T2/C/S2 Combo Vertical Type
TDS’M’-C601D : China NIM with Isolater Type
TDS’W’-J551F : Japan Dual NIM
TDS’W’-B651F : Brazil 2Tuner
TDS’W’-A651F : Taiwan 2Tuner
TDS’W’-K651F : Colombia DVB-T2 2Tuner

Global F/E Option Name
1. TU
2. Tuner Name = TDS’S’,TDS’Q’...
3. Country Name = T,T2,S2,KR,US,BR ...

Example of Option name
TU_Q_T2 = apply TDSQ type tuner and T2 country 
TU_M/W = apply TDSM&TDSW Type Tuner 

[DV2]

Copyright © 2013 LG Electronics. Inc. All rights reserved. 

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 26LN46 -Z Series

Page 1: ...P MODEL 26LN46 26LN46 Z CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED 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: ...nc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING GUIDE 15 BLOCK DIAGRAM 18 EXPLODED VIEW 19 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: ...ctrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential 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 e...

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: ...rland Hungary Austria Slovenia Bulgaria France Spain Italy Belgium Russia Luxemburg Greece Czech Croatia Turkey Moroco Ire land Latvia Estonia Lithuania Poland Portugal Romania Albania Bosnia Serbia Slovakia Beralus DTV MPEG2 4 DVB T2 7 countries UK Sweden Denmark Finland Norway Ukraine Kaza khstan Ireland DTV MPEG2 4 DVB C 37 countries Germany Netherland Switzerland Hungary Austria Slovenia Bulga...

Page 7: ...3 3 4 5 6 256 QAM 1 2 2 5 2 3 3 4 5 6 DVB C Symbolrate 4 0Msymbols s to 7 2Msymbols s Modulation 16QAM 64 QAM 128 QAM and 256 QAM DVB S S2 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 1EA PAL SECAM Scart jack is Full scart and support ATT DTV OUT not support DTV Auto AV 5 Video Input 1...

Page 8: ... Input 6 1 DTV mode No Resolution H freq kHz V freq kHz Proposed 1 640 480 31 469 31 5 59 94 60 SDTV 480P 2 720 480 31 469 31 5 59 94 60 SDTV 480P 3 720 576 31 25 50 SDTV 576P 4 720 576 15 625 50 SDTV 576I 5 1280 720 37 500 50 HDTV 720P 6 1280 720 44 96 45 59 94 60 HDTV 720P 7 1920 1080 33 72 33 75 59 94 60 HDTV 1080I 8 1920 1080 28 125 50 00 HDTV 1080I 9 1920 1080 26 97 27 23 97 24 HDTV 1080P 10 ...

Page 9: ... 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 D ...

Page 10: ... menu 3 4 2 Method 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 Manual Download Model Name and Serial Number If the TV set is downloaded by OTA or service man sometimes model name or serial ...

Page 11: ...ad NGx 3 5 2 Check the method of CI key value RS232 1 Into the main ass y mode RS232 aa 00 00 2 Check the mothed of CI key by command RS232 ci 00 20 3 Result value i 01 OK 1d1852d21c1ed5dcx 3 6 WIFI MAC ADDRESS CHECK 1 Using RS232 Command 2 Check the menu on in start 4 Manual Adjustment ADC adjustment is not needed because of OTP Auto ADC adjustment 4 1 EDID DATA 4 1 1 HDMI1 4 1 2 HDMI2 H freq kHz...

Page 12: ...rt Wheel key on the Adjustment remote control you can pairing with the TV SET 2 You can check the cursor on the TV Screen when select the Wheel key on the Adjustment remote control 3 You must remove the pairing with the TV Set by select Mute key on the Adjustment remote control 4 4 3D function test Pattern Generator MSHG 600 MSPG 6100 Support HDMI1 4 HDMI mode NO 872 pattern No 83 1 Please input 3...

Page 13: ...elect Network Connection option in Network Menu Step 3 Select Start Connection button in Network Connection Step 4 If the system finds any AP like blow PIC it is working well 4 7 LNB voltage and 22KHz tone check only for DVB S S2 model Test method 1 Set TV in Adj mode using POWER ON 2 Connect cable between satellite ANT and test JIG 3 Press Yellow key ETC SWAP in Adj Remote control to make LNB on ...

Page 14: ... 2 Checkpoint TEST voltage GND 1 5 KV min at 100 mA SIGNAL 3 KV min at 100 mA TEST time 1 second TEST POINT GND TEST POWER CORD GND SIGNAL CABLE METAL GND Internal Pressure TEST POWER CORD GND LIVE NEUTRAL LEAKAGE CURRENT At 0 5 mArms 5 Audio Measurement condition 1 RF input Mono 1 KHz sine wave signal 100 Modulation 2 CVBS Component 1 KHz sine wave signal 0 5 Vrms 3 RGB PC 1 KHz sine wave signal ...

Page 15: ...G Electronics Inc All rights reserved Only for training and service purposes TROUBLE SHOOTING GUIDE IC2407 IC2407 P2400 PIN 12 Check backlight 24V P2400 1 5 Check STEP UP DC DC conv IC2406 P102 27 30 12V IC2408 12V output IC2408 P102 15 16 ...

Page 16: ...g and service purposes 1 Check tuner TU6401 5 32 Power 3 3V 2 Check IC 2405 output voltage 1 Check tuner TU6401 7 Power 1 8V 2 Check IC6403 output voltage 1 8V Replace IC2405 Replace IC6403 Check Tuner TU6401 I2C signal 3 4 34 35 Check Tuner TU6406 DATA CLK SYN VAL Replace TU6406 And recheck ...

Page 17: ...Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes Check signal from IC8101 P5400 output 1 2 3 4 Check ADAPTER output or replace ADAPTER Check signal from IC105 SCL SDA R5402 R5403 ...

Page 18: ... 18 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes BLOCK DIAGRAM ...

Page 19: ...trical 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 permission of manufactur...

Page 20: ...30 H29 GPIO31 J26 GPIO32 G30 GPIO33 G27 GPIO34 E27 GPIO35 D29 GPIO36 D28 GPIO37 H28 GPIO38 J27 GPIO39 G29 GPIO40 G31 GPIO41 G28 GPIO42 B28 GPIO43 K28 GPIO44 E25 GPIO45 D21 GPIO46 G23 GPIO47 C28 GPIO48 F24 GPIO49 AB8 GPIO50 AA7 GPIO51 AD6 GPIO52 AC8 GPIO53 AC7 GPIO54 AB6 GPIO55 AC6 ADIN0_SRV AJ23 ADIN1_SRV AH23 ADIN2_SRV AE28 ADIN3_SRV AD28 ADIN4_SRV AF22 ADIN5_SRV AK21 ADIN6_SRV AG24 ADIN7_SRV AM1...

Page 21: ...705 1K 1 R702 1K 1 C712 0 1uF R703 1K 1 C710 0 1uF C711 0 1uF R711 240 1 R704 1K 1 H5TQ2G63BFR PBC IC702 DDR_256M_HYNIX A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 A15 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 CK K7 CKE K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL F3 DQSL G3 DQSU C7 DQSU B7 DML E7 DMU D3 DQL0 E3 DQL1 F7 DQL2 F2 DQL3 F8 DQL4 H3 DQL5 H8 DQL...

Page 22: ...G1FE3B B001 SAMSUNG_EMMC_4GB DAT0 A3 DAT1 A4 DAT2 A5 DAT3 B2 DAT4 B3 DAT5 B4 DAT6 B5 DAT7 B6 CLK M6 CMD M5 NC_3 A6 NC_4 A7 NC_23 C5 NC_42 E5 NC_43 E8 NC_44 E9 NC_45 E10 NC_52 F10 NC_58 G3 NC_59 G10 NC_66 H5 NC_73 J5 NC_80 K6 NC_81 K7 NC_82 K10 NC_116 P7 NC_119 P10 RSTN K5 VDD_1 C6 VDD_2 M4 VDD_3 N4 VDD_4 P3 VDD_5 P5 VDDF_1 E6 VDDF_2 F5 VDDF_3 J10 VDDF_4 K9 VDDI C2 VSS_2 E7 VSS_3 G5 VSS_4 H10 VSS_5...

Page 23: ...pF 50V OPT C300 560pF 50V OPT C301 560pF 50V OPT R300 470K OPT C315 100pF 50V OPT Q3305 MMBT3904 NXP HDMI_EXT_EDID E B C C3300 0 1uF 16V OPT IC4303 BD82020FVJ 3 IN_2 2 IN_1 4 EN 1 GND 5 OC 6 OUT_1 7 OUT_2 8 OUT_3 R401 1K R400 470K VA400 5 6V L3302 BLM18PG121SN1D C3312 10uF 10V R3332 10K C3315 0 1uF 16V R3351 4 7K OPT R3306 4 7K HDMI_INTERNAL_EDID R3302 100 VA3309 ADLC 5S 02 015 VA3311 ADLC 5S 02 0...

Page 24: ...NITOR_2 16 BST2B 17 PGND2B 18 OUT2B 19 PVDD2B 20 PVDD2A 21 OUT2A 22 PGND2A 23 BST2A 24 VDR2 25 AGND 26 VCC5 27 VDR1 28 BST1B 29 PGND1B 30 OUT1B 31 PVDD1B 32 PVDD1A 33 OUT1A 34 PGND1A 35 BST1A 36 RESET 37 AD 38 CLK_I 39 GND_IO 40 VDD_IO 41 EP GND L5404 LPH6045T 100M Audio_Coil_ABCO 10uH L5405 LPH6045T 100M Audio_Coil_ABCO 10uH L5402 LPH6045T 100M Audio_Coil_ABCO 10uH L5403 LPH6045T 100M Audio_Coil_...

Page 25: ...ET Q2406 MMBT3904 NXP E B C Q8800 MMBT3904 NXP E B C Q8811 MMBT3904 NXP E B C C2480 0 1uF 50V R2460 10 C2479 0 1uF 50V R2464 100K C2485 100pF 50V C2478 0 1uF 50V C2488 0 1uF 50V R2462 4 7K R2469 0 IC2408 NB634EL 3 SW_2 2 SW_1 4 SW_3 1 IN 6 BST 5 SW_4 7 EN SUNC 8 FB 9 PG 10 AAM 11 VCC 12 GND_1 13 GND_2 14 AGND 15 EP R2459 22K OPT R2463 82K L2412 15uH R2461 82K R2467 12K 1 R2466 820 1 R2465 33 1 R24...

Page 26: ... CI AR909 0 CI R907 47 CI C902 12pF 50V OPT R913 47K CI R908 47 CI R929 10K CI AR907 0 CI L4600 BLM18PG121SN1D EU VA4605 5 5V OPT VA4611 5 6V OPT R4601 10K EU L4601 BLM18PG121SN1D EU VA4604 5 5V OPT VA4608 5 6V OPT VA4601 5 6V OPT C4600 1000pF 50V EU C4601 1000pF 50V EU VA4610 5 5V OPT VA4603 5 5V OPT C4602 4700pF EU C4603 4700pF EU VA4607 5 6V OPT VA4606 5 6V OPT C4604 0 1uF EU VA4602 5 6V EU VA4...

Page 27: ...6V TU_W_BR TW CO JP R6509 33 R6513 10 TU_Q R6505 10K TU_N M_TW BR L6501 BLM18PG121SN1D TU_Q W C6521 0 1uF OPT C6520 0 1uF 16V TU_S N Q W C6500 18pF 50V TU_Q W_KR BR CO TW JP C6531 0 1uF C6538 10uF 10V C6542 0 1uF C6406 0 1uF 16V TU_N_BR R6411 0 TU_J_JP R6407 0 TU_J_JP R6405 0 TU_J_JP R6406 0 TU_J_JP R6409 0 TU_J_JP R6412 0 TU_J_JP R6410 0 TU_J_JP R6408 0 TU_J_JP C6602 0 1uF TU_M W R6602 100 TU_M W...

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