Manuals / LG Electronics / TV and Video / Flat Panel Television

LG Electronics 47LM761S/761T Full Scart18 Pin Gender, LGE Internal Use Only, Scart Gender

Models: 47LM760S/760T-ZB 47LM761S/761T-ZA MFL67360901 47LM761S/761T 47LM765S/765T 47LM765S/765T-ZD

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Full Scart(18 Pin Gender)

+3.3V_NORMAL

EU

+12V

Full Scart(18 Pin Gender)

R4601

CLOSE TO

JUNCTION

10K

SC_DET

EU

EU

EU

EU

D4611-*2

D4611-*1

C4604

E

C4606

D4611

5.6V

5.6V

0.1uF

MMBT3906(NXP)

R4605

0.1uF

5.6V

Q4600

470

OPT

200pF

200pF

B

50V

ESD_LG1152_SCART

ESD_MTK_SCART

C

EU

EU

R4606

EU

Q4601

MMBT3904(NXP)C

47K

R4602

EU

SC_CVBS_IN

390

B

C4607

D4609-*2

47uF

D4609

D4609-*1

E

25V

SHIELD

5.5V

5.5V

5.5V

EU

OPT

15pF

15pF

R4603

ESD_MTK_SCART

ESD_LG1152_SCART

Gain=1+Rf/Rg

390

EU

19

Rf

EU

AV_DET

Rg

R4607

75

R4600

R4604

15K

18

COM_GND

EU

180

D4610

D4610-*1

EU

17

SYNC_IN

5.5V

5.5V

C4605

OPT

100uF

16

SYNC_OUT

15pF

16V

R4608

0

15

ESD_MTK_SCART

OPT

SYNC_GND

14

RGB_IO

13

SC_FB

R_OUT

D4601

12

R_GND

5.6V

D4601-*1

D4601-*2

OPT

11

5.6V

5.6V

G_OUT

200pF

200pF

10

ESD_MTK_SCART

ESD_LG1152_SCART

G_GND

9

ID

SC_R

8

B_OUT

D4602

D4602-*1

7

5.5V

5.5V

AUDIO_L_IN

OPT

15pF

6

B_GND

ESD_MTK_SCART

5

SC_G

AUDIO_GND

4

AUDIO_L_OUT

D4603

D4603-*1

3

5.5V

5.5V

AUDIO_R_IN

OPT

15pF

ESD_MTK_SCART

2

AUDIO_R_OUT

1

SC_B

D4604

D4604-*1

5.5V

5.5V

DA1R018H91E

OPT

15pF

JK4600

ESD_MTK_SCART

EU

SC_ID

SC_L_IN

D4605-*2

D4600

D4605

D4605-*1

20V

5.6V

5.6V

5.6V

OPT

OPT

200pF

200pF

D4600-*2

ESD_MTK_SCART

ESD_LG1152_SCART

D4600-*1

20V

20V

10pF

10pF

ESD_MTK_SCART

ESD_LG1152_SCART

SC_R_IN

D4606

D4606-*1

D4606-*2

5.6V

5.6V

5.6V

OPT

200pF

200pF

ESD_MTK_SCART

ESD_LG1152_SCART

BLM18PG121SN1D

L4600

DTV/MNT_L_OUT

D4607

EU

EU

EU

5.6V

C4600

C4602

OPT

1000pF

4700pF

50V

BLM18PG121SN1D

L4601

DTV/MNT_R_OUT

D4608

EU

EU

EU

C4603

5.6V

C4601

4700pF

OPT

1000pF

50V

DTV/MNT_V_OUT

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.

SCART GENDER

2011.10.26

46

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

Image 34

LG Electronics 47LM761S/761T Full Scart18 Pin Gender, Copyright 2012 LG Electronics. Inc. All rights reserved, 2011.10.26

Contents

LED LCD TV MODEL 47LM760S/760T 47LM760S/760T-ZBSERVICE MANUAL 47LM761S/761T 47LM761S/761T-ZA 47LM765S/765T 47LM765S/765T-ZD Copyright CONTENTSOnly for training and service purposes LG Electronics. Inc. All rights reserved Before returning the receiver to the customer SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICE Leakage Current Cold CheckAntenna Cold Check SERVICING PRECAUTIONS Electrostatically Sensitive ES Devices Small-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementReplacement Removal 1. Application range SPECIFICATION4. Model General Specification 2. Requirement for Test symbolrate Symbolrate4.0Msymbols/s to 7.2Msymbols/s DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s 5. Component Video Input Y, Cb/Pb, Cr/Pr 6. RGB input PC 7. HDMI Input 7.1. DTV mode 7.2. PC mode 1. Application Range ADJUSTMENT INSTRUCTION3. Automatic Adjustment 2. Designation SET PC 3.2. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L3.4. LAN PORT INSPECTIONPING TEST 3.3. LAN 3.6. CI+ Key checking method 3.7. WIFI MAC ADDRESS CHECK3.5. Model name & Serial number Download 3.5.1. Model name & Serial number D/L 4.1.2. Equipment 4. Manual Adjustment4.1.1. Overview 4.1.3. Download method 4.2.1. Overview 4.2. White Balance Adjustment4.2.4. Adj. Command Protocol 4.2.2. Equipment 4.4. Local Dimming Function Check 4.5. Magic Motion Remote control test4.3. EYE-Q function check 4.2.7. LED White balance table 4.8. LNB voltage and 22KHz tone check 4.7. Wi-Fi Test4.6. 3D function test 4.9. Option selection per country 5. Audio 6. USB S/W DownloadService only4.12. GND and Internal Pressure check Rear BLOCK DIAGRAMSide HDMI EXPLODED VIEW X-TAL EAX6430790* LD22* / LC22 EAX6443420* LT22* / LJ22* / LA22* / LB22NVRAM JTAG 10K Place at JACK SIDE PLACE AT JACK SIDEPLACE AT JACK SIDE 12.5TGASKITSMDUSB1 SMD Gaskit12.5TGASKITSMDUSB3 PLACE AT MAIN SOC SIDE PLACE AT JACK SIDEPLACE AT IC6000 H5TQ2G63BFR-PBC IC701 H5TQ2G63BFR-PBCIC703 IC105 LGE2112 Copyright 2012 LG Electronics. Inc. All rights reserved PANELPOWER FROM LIPS & POWER B/DPowerDET On-semi MICOM MODEL OPTION Renesas MICOMFor Debug Eye Sensor Option HDMI4 HDMI1UI HDMI3 UI HDMI2 PC AUDIO RGB/ PC AUDIO/ SPDIFSPDIF OUT JK3603 SLIM-15F-D-2 ESD for MTK JACKCOMMON CVBS 1 PHONE JACK RS232CCOMPONENT 1 PHONE JACK close to wafer IR & KEYZener Diode is RGB Sensor USB1 USBWIFI+5VUSB FOR USB1 USB2 MAX 1.5A SCART GENDER Full Scart18 Pin Gender2011.10.26 AR4800 ZigBeeRadio Pulse MREMOTE OPTIONALL MREMOTE OPTION 1/16W Ethernet Block GP4MT5369 IC5800STA380BW 2011.11.21 IC6000 SCART AUDIO MUTEAUDOUT EU/CHINAHOTELOPT A Z4580MTR-E1 EARPHONE AMP HEADPHONE AMP Option FOR MTK Option FOR LG1152 TU6500 T/C/S & H/NIM & T2/C TUNEREU & CHINAVout=0.6*1+R1/R2 TU6501 DCDCGND and AGND are connected OptionLNBDVB-S2 LNB Part Allegro DCDCGND and AGND are connected in pin#27 FOR COMMERCIAL AUDIO OUT OPTCOMMEREXTAMP AUDIO OUT JACK OPTCOMMEREXTAMP COMMEREXTAMPJACKFOR COMMERCIAL 12V OUT RS-232C 9 PIN OPTCOMMEREXT12V COMMERCIALOPTION LVDSHIGHMID LVDS51Pin LVDS OUTPUT Connector 41Pin LVDS OUTPUT Connector 2011.08.11 AR7600 LOCAL DIMMINGL/DIMOUT LEVEL SHIFTER BLOCK POWER BLOCKTHIS IS REVERSE PATTERN T-Con HYNIXEMMC2GB Don’t Connect Power At VDDIeMMC I/F Just Interal LDO Capacitor Place Near Micom LOGOLIGHT R8901 10KPage Applicable Model XXLM760S-ZB 2012 LED/LCD TV Engineering guide Instruction of new sub ass’ys How to use tool Download CONTENTNew features Main PCBs Block Diagrams, IIC Map Adjust way of new features widevine… Repair guide EPI Interface EPIEmbedded Point-Point Interface FeaturesMerits Comparison EPI Interface mini-LVDS vs. EPIHF mini-LVDS TCON What to change HF mini-LVDS xxLM760S-ZB Main PCB for BroadbandWIFI Chassis LD22E PCB P/No EAX64307905 Side MTK5369 Block Diagram LM76Power load Rear Full Scart18 Pin Gender Jack InterfaceMain SoC MTK IC6100 R 47옴 GP4 Backend block diagram EPI & T-conR0 옴 EPI CH4/5/6 GP4 Backend block diagram EPI & T-ConEPI CH1/2/3 50Pin Dual-link LVDS Output GP4 Backend block diagram LVDS Tx & Local DimmingLVDS Tx Block LVDSSEL “H”=JEIDA, “L” or NC=VESA LGD Cables InterconnectionPCBs xxLM760S-ZA 2012Y IR + Soft touch PCB Pinmap Circuit Block DiagramAss’y Picture Pin Configuration KEY1, KEY2 Voltage 2012Y IR + Soft Touch LED Lighting Scenario Power LED ScenarioSpec 내용 Manual of Touch Sensitivity Introductions of GP4 Sensor Touch ICTouch Key Threshold Level Ta = 25ºC Touch EEPROM Register change with USB port Addr Value Introductions of 12Y RF ass’y + Magic Remote control Pairing Information Transmission Sequence 1. System™ Pairing Information Transmission Send to TV after Paired ™ Motion Data Transmission home powermute ← ok → Power Management 3. M4 Block DiagramAA x 2 Battery Connector Manufacturer 4. Function list주요 Item Function Method 5. RF Pairing / Un-pairing MethodDescription Introductions of 12Y WIFI built in ass’y Pin map WIFI Built in ass’y featureLGITBlock diagram WIFI built in feature WIFI Built in Block-diagramArcadyan WIFI Built in ass’y Specification 12Y Widevine & HDCP 2.0 & NETFLX 1. Widevine? 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM 1. Widevine? ‰ Why HDCP2.0? 2. HDCP 2.0 & NETFLIX?‰ Netflix ‰ HDCP 3. DTCP? Current 4. Changed BOMAs-Was Æ 추가 Copyright 2012 LG Electronics. Inc. All rights reserved Contents of LCD TV Standard Repair Process Content Contents of LCD TV Standard Repair Process Detail Technical ManualError symptom Page Check Power Board 12v,3.5v etc Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D CableA2 Check Power Board 24v output Replace T-con Board or module And Adjust VCOM 3.5V,12V,20V or 24V… Check various voltages of Power BoardRevised date Normal Y voltage? Check Check RF Signal levelS/W Version Check S/W Version Check color by input -External Input COMPONENT -RGB Color error?A10/ A11 ※ Check and Replace Main B/D adjust VCOM External device screen error-Color errorVertical/Horizontal bar, residual image, light spot External Input error Component error RGB error HDMI DVI Check Power On ‘”High” Check Power LEDPower LED Y On? Measure voltage of each output of Power B/D If Power Off mode is not displayed Check Power B/D voltage Error?Check Power Off Mode Power off List Check audio B+ of Power BoardCheck user menu Speaker off Normal In case of External Input signal error Check and fix external device Check audio B+ Voltage Check 3.5v on Power B/D Replace Power B/D or Replace Main B/D Check & Repair Cable connection Connector solderCheck IR Output signal Power B/D don’t have problem External Input and Recognition erroraccordance Identify nose type Adjust VCOM F. Exterior defect Content Standard Repair Process Detail Technical Manual ALL MODELS Edge LED 24 Pin Power Board ↔ Main BoardSMAW200-H24S YEONHO ALL MODELS 1. Checking method for remote controller for adjustment ALL MODELS Checking method date Appendix Exchange T-Con Board GRADATION Fuse Open, Abnormal power sectionAbnormal Display Noise Dim Light Appendix Exchange PSULED driverNo Light No picture/Sound Ok Appendix Exchange the Module Un-repairable Cases In this case please exchange the module Appendix Exchange the Module Un-repairable Cases In this case please exchange the module date For ’10 models, there is no voltage out for st-by purpose When st-by, only 3.5V is normally onEdge LED Edge LED Check “power on” pin is high B. Power error Off when on, off whiling viewing ALL MODELS Only for training and service purposesStandard Repair Process Detail Technical Manual date Standard Repair Process Detail Technical Manual ALL MODELS Standard Repair Process Detail Technical Manual LCD module change T-Con board change