LG 65UX340C Series Service Manual Download Page 30

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

1_DDR

2014.04.24

12

M1A_URSA_UD

C1207

0.1uF

DDR_EXT

A-MA8

C1211

0.1uF

DDR_EXT

A-MA3

C1206

0.1uF

DDR_EXT

A-MA0

A-MA4

A-MA6

A-MA11

A-MA9

A-MDQSL

A-MA5

A-MDQSLB

A-MA2

A-MDQL4

A-MA12

A-MDQL0

A-MBA0

A-MDQL3

C1208

0.1uF

DDR_EXT

A-MBA1

A-MDQL7

A-MBA2

A-MDQL5

A-MCKE

A-MDQL2

A-MCK

A-MDQL6

A-MCKB

A-MDQL1

A-MCASB

A-MDQU1

A-MWEB

A-MDQU3

A-MRASB

A-MDQU0

A-MODT

A-MDQU4

A-MRESETB

A-MDQU5

A-MDMU

A-MDQU2

A-MDML

A-MDQU6

A-MDQSU

A-MDQU7

A-MDQSUB

R1209

240

1%

A/B_DDR3_CS

A/B_DDR3_CS

H5TQ1G63EFR-PBC 

IC1201

DDR_1600_1G_HYNIX

EAN61829003

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

NC_7

T3

NC_5

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

DQL6

G2

DQL7

H7

DQU0

D7

DQU1

C3

DQU2

C8

DQU3

C2

DQU4

A7

DQU5

A2

DQU6

B8

DQU7

A3

VREFCA

M8

VREFDQ

H1

ZQ

L8

VDD_1

B2

VDD_2

D9

VDD_3

G7

VDD_4

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_6

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

H5TQ2G63FFR-PBC 

IC1201-*3

DDR_1600_2G_HYNIX_NEW

EAN61829204

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

NC_5

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

DQL6

G2

DQL7

H7

DQU0

D7

DQU1

C3

DQU2

C8

DQU3

C2

DQU4

A7

DQU5

A2

DQU6

B8

DQU7

A3

VREFCA

M8

VREFDQ

H1

ZQ

L8

VDD_1

B2

VDD_2

D9

VDD_3

G7

VDD_4

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_6

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

K4B1G1646G-BCK0

IC1201-*1

DDR_1600_1G_SS

EAN61836301

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

NC_5

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

DQL6

G2

DQL7

H7

DQU0

D7

DQU1

C3

DQU2

C8

DQU3

C2

DQU4

A7

DQU5

A2

DQU6

B8

DQU7

A3

VREFCA

M8

VREFDQ

H1

ZQ

L8

VDD_1

B2

VDD_2

D9

VDD_3

G7

VDD_4

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_6

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

K4B2G1646Q-BCK0 

IC1201-*4

DDR_1600_2G_SS

EAN61848803

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

NC_5

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

DQL6

G2

DQL7

H7

DQU0

D7

DQU1

C3

DQU2

C8

DQU3

C2

DQU4

A7

DQU5

A2

DQU6

B8

DQU7

A3

VREFCA

M8

VREFDQ

H1

ZQ

L8

VDD_1

B2

VDD_2

D9

VDD_3

G7

VDD_4

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_6

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

C1214

1000pF

DDR_EXT

R1207

56

1%

DDR_EXT

A-MA9

A-MDQSL

R1204

1K

1%

DDR_EXT

A-MCK

A-MA6

A-MA1

A-MDQL1

C1210

0.1uF

DDR_EXT

A-MA3

A-MDQL6

A-MA0

A-MVREFCA

R1202

1K

1%

DDR_EXT

+1.5V_DDR

A-MDQL7

A-MDQL4

A-MDQU5

A-MBA1

A-MDQU4

A-MDQL3

A-MVREFCA

A-MDMU

A-MRASB

A-MCKB

C1213

0.1uF

DDR_EXT

A-MRESETB

A-MDQSUB

A-MVREFDQ

A-MDQU6

R12011K

1%

DDR_EXT

A-MA11

A-MA4

A-MDQU3

A-MDQSLB

A-MA13

C1202

1000pF

DDR_EXT

A-MDQU0

A-MA14

A-MA10

C1201

0.1uF

DDR_EXT

A-MDML

A-MVREFDQ

A-MDQL2

C1204

0.1uF

DDR_EXT

A-MCKE

A-MDQL0

C1212

0.1uF

DDR_EXT

C1209

0.1uF

DDR_EXT

A-MDQU7

A-MA2

C1205

0.1uF

DDR_EXT

A-MODT

C1215

0.01uF

50V

DDR_EXT

R1208

56

1%

DDR_EXT

A-MA12

C1224

0.1uF

OPT

A-MA8

H5TQ2G63DFR-PBC

IC1201-*2

DDR_1600_2G_HYNIX_OLD

EAN61829203

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

NC_5

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

DQL6

G2

DQL7

H7

DQU0

D7

DQU1

C3

DQU2

C8

DQU3

C2

DQU4

A7

DQU5

A2

DQU6

B8

DQU7

A3

VREFCA

M8

VREFDQ

H1

ZQ

L8

VDD_1

B2

VDD_2

D9

VDD_3

G7

VDD_4

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_6

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

A-MCASB

C1203

10uF

10V

DDR_EXT

A-MBA2

A-MDQL5

A-MA7

C1221

1uF

OPT

A-MWEB

C1222

1uF

OPT

A-MDQU2

C1223

1uF

OPT

R1203

240

1%

DDR_EXT

+1.5V_DDR

A-MDQSU

+1.5V_DDR

R1206

10K

DDR_EXT

+1.5V_DDR

A-MBA0

+1.5V_DDR

A-MA5

+1.5V_DDR

A-MDQU1

A-MA13

R1205

1K

1%

DDR_EXT

A-MA14

A-MA7

A-MA10

A-MA1

IC101

LGE2134(256M) 

M1A_256M

B_DDR3_A[0]

E11

B_DDR3_A[1]

F12

B_DDR3_A[2]

D10

B_DDR3_A[3]

B10

B_DDR3_A[4]

E15

B_DDR3_A[5]

B11

B_DDR3_A[6]

F14

B_DDR3_A[7]

C11

B_DDR3_A[8]

D14

B_DDR3_A[9]

A12

B_DDR3_A[10]

F16

B_DDR3_A[11]

D13

B_DDR3_A[12]

D15

B_DDR3_A[13]

C12

B_DDR3_A[14]

E13

B_DDR3_BA[0]

A9

B_DDR3_BA[1]

D16

B_DDR3_BA[2]

A10

B_DDR3_MCLK

C13

B_DDR3_MCLKZ

B13

B_DDR3_MCLKE

E17

B_DDR3_ODT

B8

B_DDR3_RASZ

C8

B_DDR3_CASZ

B9

B_DDR3_WEZ

D11

B_RESET

F10

B_DDR3_CS0

D12

B_DDR3_DQSL

A19

B_DDR3_DQSU

B18

B_DDR3_DQML

C16

B_DDR3_DQMU

D21

B_DDR3_DQSBL

C18

B_DDR3_DQSBU

C17

B_DDR3_DQL[0]

A20

B_DDR3_DQL[1]

A16

B_DDR3_DQL[2]

C19

B_DDR3_DQL[3]

C15

B_DDR3_DQL[4]

C20

B_DDR3_DQL[5]

C14

B_DDR3_DQL[6]

B21

B_DDR3_DQL[7]

B15

B_DDR3_DQU[0]

F18

B_DDR3_DQU[1]

D19

B_DDR3_DQU[2]

D17

B_DDR3_DQU[3]

E21

B_DDR3_DQU[4]

E19

B_DDR3_DQU[5]

D20

B_DDR3_DQU[6]

D18

B_DDR3_DQU[7]

F20

ZQ

E9

IC101-*1

LGE2133(128M) 

M1A_128M

B_DDR3_A[0]

E11

B_DDR3_A[1]

F12

B_DDR3_A[2]

D10

B_DDR3_A[3]

B10

B_DDR3_A[4]

E15

B_DDR3_A[5]

B11

B_DDR3_A[6]

F14

B_DDR3_A[7]

C11

B_DDR3_A[8]

D14

B_DDR3_A[9]

A12

B_DDR3_A[10]

F16

B_DDR3_A[11]

D13

B_DDR3_A[12]

D15

B_DDR3_A[13]

C12

B_DDR3_A[14]

E13

B_DDR3_BA[0]

A9

B_DDR3_BA[1]

D16

B_DDR3_BA[2]

A10

B_DDR3_MCLK

C13

B_DDR3_MCLKZ

B13

B_DDR3_MCLKE

E17

B_DDR3_ODT

B8

B_DDR3_RASZ

C8

B_DDR3_CASZ

B9

B_DDR3_WEZ

D11

B_RESET

F10

B_DDR3_CS0

D12

B_DDR3_DQSL

A19

B_DDR3_DQSU

B18

B_DDR3_DQML

C16

B_DDR3_DQMU

D21

B_DDR3_DQSBL

C18

B_DDR3_DQSBU

C17

B_DDR3_DQL[0]

A20

B_DDR3_DQL[1]

A16

B_DDR3_DQL[2]

C19

B_DDR3_DQL[3]

C15

B_DDR3_DQL[4]

C20

B_DDR3_DQL[5]

C14

B_DDR3_DQL[6]

B21

B_DDR3_DQL[7]

B15

B_DDR3_DQU[0]

F18

B_DDR3_DQU[1]

D19

B_DDR3_DQU[2]

D17

B_DDR3_DQU[3]

E21

B_DDR3_DQU[4]

E19

B_DDR3_DQU[5]

D20

B_DDR3_DQU[6]

D18

B_DDR3_DQU[7]

F20

ZQ

E9

CLose to Saturn7M IC

CLose to DDR3

Option : Ripple Check !!!

Copyright © 2015 LG Electronics Inc. All rights reserved. 
Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 65UX340C Series

Page 1: ...ODEL 65UX340C 65UX340C UA 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: ...ll rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLESHOOTING GUIDE 14 BLOCK DIAGRAM 23 EXPLODED VIEW 24 SCHEMATIC CIRCUIT DIAGRAM APPENDIX ...

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: ... 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 specification 4 General Specification No Item Specification Result Remark 1 Receiving System ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 3 Input Voltage AC 100 240V 50 60Hz Mark 110V 60...

Page 7: ...9 1920 1080 67 50 60 00 148 5 HDTV 1080P O 5 2 Component input Y CB PB CR PR No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 15 73 60 00 13 513 SDTV DVD 480I 2 720 480 15 73 59 94 13 500 SDTV DVD 480I 3 720 480 31 50 60 00 27 027 SDTV 480P 4 720 480 31 47 59 94 27 000 SDTV 480P 5 1280 720 45 00 60 00 74 250 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1920 1080 ...

Page 8: ...VESA O 7 1360 768 47 71 60 01 85 50 VESA WXGA O 8 1280 1024 63 98 60 02 108 0 VESA SXGA O 9 1920 1080 67 50 60 00 148 5 HDTV 1080P O DTV 1 720 480 31 50 60 00 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 1080I 6 1920 1080 33 72 59 94 74 176 HDTV 1080I 7 1920 1080 67 50 60 00 ...

Page 9: ...oard level and Final assembly adjustment items can be check using In Start Menu 1 Adjust Check Component 1080p and RGB PC Adjust will be calculated by 480i adjust value 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Shipment conditions 2 Tool option ...

Page 10: ...ks 1 Objective To reduce each Panel s W B deviation 2 How it works When R G B gain in the OSD is at 192 it means the panel is at its Full Dynamic Range Case Cool Mode To adjust the white balance without the saturation G gain should be adjust at least 172 and change the others R B Gain When R or B gain is over 255 G gain can be adjust below 172 Case Medium Warm Mode To adjust the white balance with...

Page 11: ...ing POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C 6 White Balance then press the cursor to the right KEY When KEY is pressed 204 Gray 80IRE internal pattern will be displayed 4 Adjust modes Cool Fix the G gain at least 172 and change the others R B Gain If R or B gain is over 255 G ...

Page 12: ...ct US then on the lower Country option select US CA MX Selection is done using KEY 5 2 3 Tool Option inspection Press Adj key on the Adj R C then select Tool option 5 3 Ship out mode check In stop After final inspection press In Stop key of the Adj R C and check that the unit goes to Stand by mode 6 GND and HI POT Test 6 1 GND HI POT auto check preparation 1 Check the POWER CABLE and SIGNAL CABE i...

Page 13: ...n the number Each model has their number 9 Test factor for commercial model 9 1 RJP TEST Only US model 9 1 1 Overview Jig Commercial Check JIG RJ45 cable Power only mode 9 1 2 Test sequence 1 Operate JIG Commercial Check JIG as shown on picture1 2 Turn on TV and press P ONLY key on adjustment remocon 3 Connect RJ45 cable into RJP port of the TV set 4 Connect RJ45 cable into the JIG 5 If shown OK i...

Page 14: ...tor 24pin 28pin Short check stand by voltage 3 5V Replace Power board Check X TAL X101 Replace X101 Check POWER ON signal P401 P402 1 pin Download software Main Replace IC101 or Main Board Check multi voltage 12V 24V P401 P402 11 12 13 14 15p 12V P401 P402 18 19 20 21p 24V Check Power connector 24pin 28pin Short check multi voltage 12V 24V Replace Power board Check Main IC power block IC404 1 5V Q...

Page 15: ...IC13403 1 5V IC13401 3 3V IC13402 1 15V Replace IC13403 IC13401 IC13402 Replace X1351 Vx1 power voltage Q405 12V Replace Q405 Vx1 output signal Download software URSA11 Replace IC119 or Main Board Check DRV ON signal P401 P402 2 pin Replace Main Board Check Power Board Check Vx1 cable Check Power Board Replace Vx1 cable Previous page Main IC block Audio NG NG NG NG Low NG NG NG NG Audio OK OK OK O...

Page 16: ...738 R3739 Replace Tuner or IC101 or Main Board Replace L3704 Check SIF CVBS signal Q3700 Q3701 pin Check SIF CVBS signal Pin 8 9 Replace Tuner Replace IC101 or Main Board NG NG NG NG NG OK OK OK OK 4 AV Video No signal Check input signal format Is it supported Check AV cable Check AV Jack Detect Signal R2814 Replace AV Jack JK2802 Check CVBS signal ZD2802 ZD2803 R2859 R246 R241 Replace ZD2802 ZD28...

Page 17: ...omponent cable Check AV Jack CVBS signal ZD2802 ZD2804 ZD2806 Replace AV Jack JK2802 Replace ZD2804 ZD2805 R2800 R239 Check Component signal Y ZD2802 ZD2803 R2859 R241 Replace ZD2802 ZD2803 R2859 R241 Replace ZD2806 ZD2807 R2801 R243 Check Component signal Pb ZD2804 ZD2805 R2800 R239 Check Component signal Pr ZD2806 ZD2807 R2801 R243 Replace IC101 or Main Board NG NG NG NG OK OK OK OK OK OK ...

Page 18: ...K1391 HDMI2 JK1392 1 3 4 6 7 9 10 12 pin Replace HDMI Jack HDMI1 JK1391 HDMI2 JK1392 Next page URSA11 M1A Block Replace Main Board NG NG NG NG NG OK OK OK OK 7 HDMI Video No signal URSA11 M1A Block Check HPD HDMI1 JK1391 19 pin HDMI2 JK1392 19 pin Check URSA11 I2C R13574 R13583 AR1351 Check HDMI pattern Replace HPD component HDMI1 R1391 Q1391 R1393 R1395 R1399 HDMI2 R1392 Q1392 R1394 R1396 R1401 R...

Page 19: ...DCDC IC IC405 output voltage 5V Check USB 5V OCP IC IC406 output voltage 5V Replace USB 5V DCDC IC IC405 Replace R700 R701 Replace USB Jack JK700 or Main IC IC101 Check USB signal R700 R701 Replace USB 5V OCP IC IC406 Replace Main IC IC101 or Main Board Check Component signal Pr ZD2806 ZD2807 R2801 R243 Replace IC101 or Main Board NG NG NG NG OK OK OK OK OK OK ...

Page 20: ... AMP power component L5600 24V L5601 3 3V Check I2S signal IC5600 7 8 38 pin Replace Main IC IC101 or Main Board Check amp output signal P5600 1 2 3 4 pin Replace amp output component L5602 L5603 L5604 L5605 C5622 C5623 C5627 C5628 Check Power connector 24pin 28pin Replace Power board Check speaker connector Replace speaker connector Replace AMP IC IC5600 or Main IC IC101 or Main Board Replace amp...

Page 21: ...ace L3704 Check SIF CVBS signal Q3700 Q3701 pin Replace Tuner Follow procedure 9 All source audio Replace Tuner or IC101 or Main Board NG NG NG NG OK OK OK OK 11 AV No sound Check AV cable Check Jack Audio signal L R2802 R R2803 Check audio signal L R2802 C2803 R2810 R2815 C216 R R2803 C2802 R2811 R2816 C219 Replace audio signal component L R2802 C2803 R2810 R2815 C216 R R2803 C2802 R2811 R2816 C2...

Page 22: ...3 R2810 R2815 C216 R R2803 C2802 R2811 R2816 C219 Replace Jack JK2802 Follow procedure 9 All source audio NG NG OK OK OK 13 IR Out Check IR P4600 7Pin and R4611 Replace IR and Cable Check the R3505 Replace Q3501 R3503 R3502 Check the R3502 Replace Q3500 R3501 Check PM_TXD line R707 Replace IC3200 Check Pin4 of RS232C P702 If there is no problem without RS232C connection with external box check the...

Page 23: ...DIO output C3501 C3502 Replace M1A IC101 or Main Board Check AMP IC IC3800 Mute High R3803 4pin Check signal line Replace M1A IC101 or Main Board Check Output Signal JK3500 4 5 pin Replace Phone Jack JK3500 Check AMP IC IC3500 Output L3501 L3502 replace AMP IC IC3500 Check JK3800 Check External Speaker Replace Phone Jack if found to be damaged Replace External speaker NG NG NG NG NG NG NG OK OK OK...

Page 24: ... 24 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes BLOCK DIAGRAM ...

Page 25: ...racteristics 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 IMPORTANT SAFETY NOTICE 900 910 911 200 400 800 540 521 530 120 121 LV1 LV2 A10 A2 S...

Page 26: ...16V C411 0 1uF 16V R403 10K R410 22K 1 L405 3 6uH LPH6050T 3R6N R C443 22uF 10V 5V_USB C403 10uF 16V R408 120K 1 R415 10K 3 3V_NORMAL USB1_CTL 12V R405 4 7K 5V_NORMAL IC405 BD9D321EFJ 3 VREG 2 FB 4 SS 1 EN 5 GND 6 SW 7 BOOT 8 VIN 9 EP C406 0 1uF 16V 5V_NORMAL C404 0 1uF C412 22uF 10V C409 1uF 10V R418 14K 1 C405 100pF 50V IC406 BD2242G 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM L404 BLM18PG121SN1D USB1_O...

Page 27: ...1 2 3 4 5 6 7 8 9 10 C704 0 33uF JP716 C713 0 1uF PM_RXD IR_OUT C708 0 1uF D702 30V CDS3C30GTH OPT D703 30V CDS3C30GTH OPT C707 0 1uF JP717 JP718 R707 100 IC700 MAX3232CDR EAN41348201 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC C721 18pF 50V SPDIF_OPTIC 3 3V_NORMAL SPDIF_OUT JK700 JST1223 001 SPDIF_OPTIC 1 GND 2 VCC 3 VINPUT 4 FIX_POLE...

Page 28: ..._ZENER_KEC MULTI ZD2807 COMP_ZENER_KEC MULTI ZD2803 COMP_ZENER_KEC MULTI ZD2804 COMP_ZENER_KEC MULTI ZD2805 COMP_ZENER_KEC MULTI VA2807 20V RGB_VARISTOR ADUC 20S 02 010L DSUB SC1_VSYNC VA2811 5 6V OPT C2810 18pF 50V 5V_NORMAL C2807 47pF 50V OPT DSUB_DET R2819 75 VA2808 20V RGB_VARISTOR ADUC 20S 02 010L R2806 33 DSUB SC1_VSYNC DSUB SC1_HSYNC C2808 68pF 50V OPT C2812 0 1uF 16V 3 3V_NORMAL R2821 2 2K...

Page 29: ...H EXT_OUT_R C3500 1uF 50V EXT_SPK_DET EXT_OUT_L Q3500 MMBT3904 NXP HEAD_PHONE E B C C3505 0 1uF 50V R3511 10K C3509 0 1uF 50V R3503 10K EXT_OUT_L 3 5V_ST R3502 15K C3513 0 47uF 50V OPT HP_EXT_SPK_ROUT C3514 0 47uF 50V OPT R3507 10K OPT HP_ROUT C3515 47uF 25V C3510 10uF 35V IC3500 TPA3124D2PWPR 3 PVCCL_2 2 SD 4 MUTE 1 PVCCL_1 6 RIN 5 LIN 7 BYPASS 8 AGND_1 9 AGND_2 10 PVCCR_1 11 VCLAMP 12 PVCCR_2 13...

Page 30: ...D_3 G7 VDD_4 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_6 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 C1214 10...

Page 31: ... DI IO0 6 CLK 7 HOLD IO3 8 VCC FLASH_WP SPI_SDI R1300 10K OPT R1302 33 IC1300 MX25L8006EM2I 12G SPI_FLASH_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC SPI_SDO SPI_CS R1301 4 7K OPT C1300 0 1uF 3 5V_ST SPI_SCK 3 5V_ST IC1300 2 W25Q80DVSSIG SPI_FLAHS_WINBOND_NEW 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC IC1300 3 MX25L8035EM2I 10G SPI_FHASH_MACRONIX_NEW 3 WP SIO...

Page 32: ... X RADIATION FIRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 33: ...A 12 HP_LOUT CI_TS_DATA 1 PCM_D 5 SIDE_HP_MUTE PCM_CD PCM_D 4 FE_TS_SYNC URSA_RESET FE_TS_DATA 3 CI_TS_CLK SC1 COMP1_L_IN EPHY_TN TU_CVBS SC1_G COMP1_Y PCM_WAIT SC1 COMP1_DET PCM_IOWR CI_TS_DATA 3 HP_ROUT PCM_RST CI_TS_DATA 4 FE_TS_DATA 2 PCM_A 13 AV2_CVBS_DET AV2_L_IN PCM_D 0 PCM_IRQA PCM_IORD CI_TS_VAL SC1_ID DEMOD_RESET PCM_D 6 CI_TS_DATA 6 SC1 AV2_CVBS_IN PCM_A 11 PCM_WE CI_CD1 PCM_OE PCM_D 3 ...

Page 34: ...00 BLM18PG121SN1D C4602 0 1uF 16V P4601 12507WR 08L OPT 1 2 3 4 5 6 7 8 9 C4604 100pF 50V R4604 10K 1 VA4600 OPT KEY2 C4601 1000pF 50V R4601 100 R4603 10K 1 R4602 100 C4606 18pF 50V EYE_SENSOR C4600 0 1uF 16V R4600 3 3K C4603 0 1uF 16V KEY1 3 5V_ST IR_SDA IR_SCL R4605 100 EYE_SENSOR R4607 100 EYE_SENSOR Q4600 2SC3052 IR_OUT_EU E B C IR_OUT R4612 10K IR_OUT_EU R4613 1K IR_OUT 3 5V_ST R4610 1K IR_OU...

Page 35: ...2 TS1DATA 5 GPIO98 AA13 TS1DATA 6 GPIO99 W14 TS1DATA 7 GPIO100 W13 TS1SYNC GPIO102 Y15 TS1VALID GPIO101 W15 PM_SPI_SCZ1 GPIO_PM 6 GPIO13 B3 PM_SPI_SCK GPIO1 A3 PM_SPI_SCZ0 GPIO0 A4 PM_SPI_SDI GPIO2 C3 PM_SPI_SDO GPIO3 A2 RP B1 TN C2 TP C1 RN B2 SPDIF_IN GPIO161 D2 SPDIF_OUT GPIO162 D1 HWRESET D8 IRIN GPIO5 E5 DDCA_CK UART0_RX G4 DDCA_DA UART0_TX G5 PWM0 GPIO71 J18 PWM1 GPIO72 K18 PWM2 GPIO73 K16 P...

Page 36: ...ND_48 J9 GND_49 J10 GND_50 J11 GND_51 J12 GND_52 J13 GND_53 J14 GND_54 K8 GND_55 K10 GND_56 K11 GND_57 L10 GND_58 M5 GND_59 M7 GND_60 M8 GND_61 M9 GND_62 M10 GND_63 N4 GND_64 N5 GND_65 N6 GND_66 N7 GND_67 N8 GND_68 N9 GND_69 N10 GND_70 P4 GND_71 P5 GND_72 P6 GND_73 P7 GND_74 P9 GND_75 P10 GND_76 P15 GND_77 P16 GND_78 P17 GND_79 P18 GND_80 R10 GND_81 R11 GND_82 R12 GND_83 R13 GND_84 R14 GND_EFUSE K...

Page 37: ...V L5603 SP 7850_10 10uH R5601 10K C5616 390pF 50V 10uF C5610 35V C5620 22000pF 50V C5606 1uF 10V 24V_AMP R5606 100 1 16W L5605 SP 7850_10 10uH R5613 4 7K R5610 4 7K C5608 33pF 50V 10uF C5613 35V R5600 10K OPT 0 1uF C5623 50V R5604 100 24V_AMP L5604 SP 7850_10 10uH 0 1uF C5627 50V SPK_L 24V R5607 5 6 1 10W AUD_SCK AMP_RESET 0 1uF C5628 50V C5617 22000pF 50V C5607 33pF 50V AMP_SDA POWER_DET R5602 0 ...

Page 38: ..._GNA_A TDJH H101F TU3700 3 TUNER_NTSC 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC 4 SCL 5 SDA A1 A1 B1 B1 C3741 5pF 50V OPT C3742 5pF 50V OPT R3735 220 TU_BUFFER R3728 82 TU_BUFFER R3725 470 TU_BUFFER Q3700 MMBT3906 NXP TU_BUFFER E B C 3 3V_TU R3731 0 OPT Q3700 1 2N3906S RTK TU_BUFFER_KEC E B C 3 3V_TU TU_CVBS Q3701 1 2N3906S RTK TU_BUFFER_KEC E B C R3732 220 TU_BUFFER R3726 0 ...

Page 39: ...VID R13426 10K OPT C13402 0 1uF 16V VID_CTRL VID_CTRL C13408 10uF 16V IC13402 TPS53513RVER 1 RF 3 EN 7 SW_2 9 SW_4 10 PGND_1 11 PGND_2 12 PGND_3 13 PGND_4 14 PGND_5 15 VIN_1 16 VIN_2 17 VIN_3 18 NC_2 19 VDD 20 VREG 21 MODE 22 GND 23 FB 24 VO 25 TRIP 26 NC_3 27 GND1 28 GND2 5 NC_1 8 SW_3 6 SW_1 4 VBST 2 PGOOD 29 EP R13418 10K URSA11_VID ZD13400 2 5V VID0 R13402 3 3 1 10W 5 R13408 10K 1 16W 1 R13590...

Page 40: ...T R13513 33 OPT R13514 33 OPT R13515 33 OPT R13516 33 OPT HTPDAn R13557 10K URSA_TX_HTPD_pulldown R13556 220 Vx1_LED R13552 10K OPT LOCKAn Q1351 2N3906S RTK Vx1_LED_PNP_KEC MULTI E B C Q1351 1 MMBT3906 NXP Vx1_LED_PNP_NXP MULTI E B C 3 3V_U_NORMAL R13555 22 Vx1_LED LD1351 SML 512UW Vx1_LED_RHOM URSA_OPT_1 R13586 100K R13585 100K VID0 VID1 URSA_RESET_READY R13242 0 OPT SW1351 1 2 4 3 R13517 0 R1350...

Page 41: ...DDR_VBP_A_2 B18 AVDD_DDR_VBP_A_3 R13 AVDD_DDR_VBP_A_4 R14 AVDD_DDR_VBN_A_1 A16 AVDD_DDR_VBN_A_2 B16 AVDD_DDR_VBN_A_3 P13 AVDD_DDR_VBN_A_4 P14 AVDD_DDR_VBP_B_1 U18 AVDD_DDR_VBP_B_2 U19 AVDD_DDR_VBP_B_3 Y27 AVDD_DDR_VBP_B_4 Y28 AVDD_DDR_VBN_B_1 V18 AVDD_DDR_VBN_B_2 V19 AVDD_DDR_VBN_B_3 AB27 AVDD_DDR_VBN_B_4 AB28 GND_1 H1 GND_2 K1 GND_3 A2 GND_4 B2 GND_5 G2 GND_6 J2 GND_7 L2 GND_8 N2 GND_9 P2 GND_10 ...

Page 42: ... 34 10 32 11 31 12 30 13 29 14 28 15 27 16 26 17 25 18 24 19 23 20 22 21 21 22 20 23 19 24 18 25 17 26 16 27 15 28 14 29 13 30 12 31 11 32 10 33 9 34 8 35 7 36 6 37 5 38 4 39 3 40 2 41 1 42 Q13033 2N3904S NPN_KEC MULTI E B C R13043 10K Q13032 2N3904S NPN_KEC MULTI E B C 3 3V_U_NORMAL 1 8V 1 8V Q13031 2N3904S NPN_KEC MULTI E B C R13039 10K 3 3V_U_NORMAL R13046 100 R13038 10K LOCKn_IN R13047 10K R13...

Page 43: ...7 DQU0 D7 DQU1 C3 DQU2 C8 DQU3 C2 DQU4 A7 DQU5 A2 DQU6 B8 DQU7 A3 VREFCA M8 VREFDQ H1 ZQ L8 VDD_1 B2 VDD_2 D9 VDD_3 G7 VDD_4 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...

Page 44: ...97 2N3904S NPN_KEC MULTI E B C R1444 10K DDC_DL_EN 5V_DDC_1 DDC1_EN DDC1_EN Q1398 2N3904S NPN_KEC MULTI E B C 5V_DDC_2 R1445 10K DDC_DL_EN DDC2_EN 5V_DDC_1 DDC1_EN R1439 47K Q1400 2N7002KA G D S 5V_DDC_2 DDC2_EN Q1402 2N7002KA G D S 5V_DDC_2 R1440 47K DDC2_EN Q1401 2N7002KA G D S R1441 47K HDMI_RX2 HDMI_RX0 HDMI_RX0 HDMI_CLK HDMI_RX1 HDMI_CLK HDMI_RX1 HDMI_RX2 Q1391 1 MMBT3904 NXP NPN_NXP MULTI E ...

Page 45: ... MDS62110225 M13005 GASKET_8 0X6 0X10 5H SMD_GASKET_MID MDS62110225 M13010 GASKET_8 0X6 0X10 5H SMD_GASKET_BOT MDS62110225 M13009 GASKET_8 0X6 0X10 5H SMD_GASKET_BOT MDS62110225 M13007 GASKET_8 0X6 0X10 5H SMD_GASKET_MID MDS62110225 M13002 GASKET_8 0X6 0X10 5H SMD_GASKET_MID MDS62110225 M13008 GASKET_8 0X6 0X10 5H SMD_GASKET_MID L13410 T con Power MLB 201209 0120P N2 PANEL_VCC C13435 0 1uF 25V T c...

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