LG Electronics 640T-ZA service manual Place At Jack Side, Place At Main Soc Side, PLACE AT IC6000

Page 23
PLACE AT JACK SIDE

PLACE AT JACK SIDE

R610

51K

SC_ID PLACE AT MAIN SOC SIDEPLACE AT IC6000Manual backgroundManual background SC_ID_SOC 1/16W

1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

R613

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

READY FOR FILTER

(EMI)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SC_CVBS_IN

 

 

 

 

 

 

 

R611

 

 

 

 

 

 

 

 

 

 

 

 

SC_CVBS_IN_IF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C601

120-ohm

 

 

 

 

C607

 

 

R604

 

 

 

 

 

 

EU

 

 

 

 

100pF

 

75

 

 

 

 

10pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

1%

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SC_FB Manual backgroundManual backgroundManual backgroundManual background SC_FB_SOC

R609

R608 22

75EU

1%

EU

PLACE AT MAIN SOC SIDE

SC_R

 

 

 

 

R623

 

100

C615

 

 

0.01uF

 

 

 

 

C604

 

EU

 

 

 

 

SC_R_SOC

 

 

R605

 

 

 

EU

 

 

 

10pF

 

 

 

 

 

 

 

75

 

EU

 

 

 

 

 

 

 

 

 

 

1%

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R622

 

 

 

100

C614

 

0.01uF

 

SC_G

 

 

 

C605

 

 

EU

 

 

 

 

 

 

 

 

 

 

SC_G_SOC

 

 

 

R606

 

 

 

 

 

 

 

EU

 

 

 

 

10pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

R620

 

 

 

100

C612

 

0.01uF

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

SC_COM_SOC

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

SC_B

 

 

 

 

 

 

 

R621

 

 

 

100

C613

 

0.01uF

 

R607

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

SC_B_SOC

 

 

 

 

C606

 

 

EU

75

 

10pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1%

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

R617

100

C616

 

 

 

0.047uF

 

 

 

 

 

 

 

SC_CVBS_IN_IF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SC_CVBS_IN_SOC

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

PLACE AT IC6000

+12V

OPT

R630

SCART_Rout_SOC Manual background

15K R618

EU

R627 330pF 50V

EU

R632100K

SCART_Rout

0

+12V

 

OPT

EU

 

 

R631

 

 

OPT

100K

 

 

R628

 

R633

 

100K

 

READY FOR FILTER (EMI)

C610

10uF

16V

SCART_Lout_SOC Manual background

R614

0

15K R619

EU

R603

330pF 50V

EU

Manual background SCART_Lout

0OPT

EU R629

100K

SC_L_IN

SC_R_IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R625

 

 

 

 

 

 

 

 

30K

 

C608

 

R601

 

 

 

C602

EU

 

100pF

 

 

 

 

 

470K

 

330pF

 

 

 

50V

 

OPT

 

 

 

50V

 

 

 

EU

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R602

 

 

 

 

R626

 

 

 

 

 

 

 

30K

 

C609

 

470K

 

 

 

C603

EU

 

100pF

 

OPT

 

 

 

 

 

 

 

 

 

330pF

 

 

 

50V

 

 

 

 

 

50V

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

OPT

EU

C611

10uF

16V

EU

SC_L_IN_SOC

1/16W

5% EU

R624

0

Manual backgroundManual background SC_R_IN_SOC 1/16W

5%

EU

R612 R635

SCART_AMP_R_FB

010K

EU EU

R634 R636

SCART_AMP_L_FB

0 10K

EU EU

 

 

 

 

 

 

 

 

 

READY FOR FILTER

(EMI)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTV/MNT_V_OUT_SOC

R616

 

R615

 

 

 

 

0

 

 

 

C617

DTV/MNT_V_OUT

75

 

75

 

 

 

 

 

C600

 

 

1%

 

1%

 

 

 

 

 

220pF

220pF

 

 

 

 

EU

 

EU

 

 

 

 

OPT

 

OPT

 

 

 

 

TU_CVBS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TP600

 

 

 

 

 

 

 

THE Manual background 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 Manual background SYMBOL MARK OF THE SCHEMETIC.

MID_MAIN_SCART

2011.12.30

11

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

Page 22 Page 24
Image 23
Page 22 Page 24
Contents LED LCD TV MODEL 32LM640S/640T32LM640S/640T-ZA SERVICE MANUALLG Electronics. Inc. All rights reserved CONTENTSOnly for training and service purposes CopyrightLeakage Current Cold CheckAntenna Cold Check SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICE Before returning the receiver to the customerElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSRemoval IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement2. Requirement for Test SPECIFICATION4. Model General Specification 1. Application rangeDVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s Symbolrate4.0Msymbols/s to 7.2Msymbols/s symbolrate6. RGB input PC 5. Component Video Input Y, Cb/Pb, Cr/Pr7.2. PC mode 7. HDMI Input 7.1. DTV mode2. Designation ADJUSTMENT INSTRUCTION3. Automatic Adjustment 1. Application Range3.3. LAN 3.2. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L3.4. LAN PORT INSPECTIONPING TEST SET PC3.5.1. Model name & Serial number D/L 3.7. WIFI MAC ADDRESS CHECK3.5. Model name & Serial number Download 3.6. CI+ Key checking method4.1.3. Download method 4. Manual Adjustment4.1.1. Overview 4.1.2. Equipment4.2.2. Equipment 4.2. White Balance Adjustment4.2.4. Adj. Command Protocol 4.2.1. Overview4.2.7. LED White balance table 4.5. Magic Motion Remote control test4.3. EYE-Q function check 4.4. Local Dimming Function Check4.9. Option selection per country 4.7. Wi-Fi Test4.6. 3D function test 4.8. LNB voltage and 22KHz tone check4.12. GND and Internal Pressure check 6. USB S/W DownloadService only5. Audio HDMI BLOCK DIAGRAMSide RearIMPORTANT SAFETY NOTICE EXPLODED VIEWJTAG 10K EAX6430790* LD22* / LC22 EAX6443420* LT22* / LJ22* / LA22* / LB22NVRAM X-TALPLACE AT JACK SIDE PLACE AT JACK SIDEPlace at JACK SIDE 12.5TGASKITSMDUSB3 SMD Gaskit12.5TGASKITSMDUSB1 PLACE AT IC6000 PLACE AT JACK SIDEPLACE AT MAIN SOC SIDE IC105 LGE2112 IC701 H5TQ2G63BFR-PBCIC703 H5TQ2G63BFR-PBCLGE Internal Use Only On-semi FROM LIPS & POWER B/DPowerDET PANELPOWEREye Sensor Option Renesas MICOMFor Debug MICOM MODEL OPTIONUI HDMI2 HDMI1UI HDMI3 HDMI4JK3603 SLIM-15F-D-2 RGB/ PC AUDIO/ SPDIFSPDIF OUT PC AUDIOJACKCOMMON ESD for MTKCOMPONENT 1 PHONE JACK RS232CCVBS 1 PHONE JACK RGB Sensor IR & KEYZener Diode is close to waferUSB2 MAX 1.5A USBWIFI+5VUSB FOR USB1 USB12011.10.26 Full Scart18 Pin GenderSCART GENDER 1/16W ZigBeeRadio Pulse MREMOTE OPTIONALL MREMOTE OPTION AR4800Ethernet Block 2011.11.21 IC5800STA380BW GP4MT5369A Z4580MTR-E1 SCART AUDIO MUTEAUDOUT EU/CHINAHOTELOPT IC6000HEADPHONE AMP EARPHONE AMPOption FOR LG1152 Option FOR MTKTU6501 T/C/S & H/NIM & T2/C TUNEREU & CHINAVout=0.6*1+R1/R2 TU6500DCDCGND and AGND are connected in pin#27 OptionLNBDVB-S2 LNB Part Allegro DCDCGND and AGND are connectedCOMMERCIALOPTION AUDIO OUT JACK OPTCOMMEREXTAMP COMMEREXTAMPJACKFOR COMMERCIAL 12V OUT RS-232C 9 PIN OPTCOMMEREXT12V FOR COMMERCIAL AUDIO OUT OPTCOMMEREXTAMP2011.08.11 LVDS51Pin LVDS OUTPUT Connector 41Pin LVDS OUTPUT Connector LVDSHIGHMIDL/DIMOUT LOCAL DIMMINGAR7600 T-Con POWER BLOCKTHIS IS REVERSE PATTERN LEVEL SHIFTER BLOCKJust Interal LDO Capacitor Don’t Connect Power At VDDIeMMC I/F HYNIXEMMC2GBLOGOLIGHT R8901 10K Place Near MicomPage 2012 LED/LCD TV Engineering guide Applicable Model XXLM760S-ZBAdjust way of new features widevine… Repair guide CONTENTNew features Main PCBs Block Diagrams, IIC Map Instruction of new sub ass’ys How to use tool DownloadMerits EPIEmbedded Point-Point Interface FeaturesEPI Interface What to change EPI Interface mini-LVDS vs. EPIHF mini-LVDS TCON ComparisonHF mini-LVDS Chassis LD22E PCB P/No EAX64307905 Main PCB for BroadbandWIFI xxLM760S-ZBRear MTK5369 Block Diagram LM76Power load SideIC6100 Jack InterfaceMain SoC MTK Full Scart18 Pin GenderR0 옴 GP4 Backend block diagram EPI & T-conR 47옴 50Pin GP4 Backend block diagram EPI & T-ConEPI CH1/2/3 EPI CH4/5/6LVDSSEL “H”=JEIDA, “L” or NC=VESA LGD GP4 Backend block diagram LVDS Tx & Local DimmingLVDS Tx Block Dual-link LVDS OutputxxLM760S-ZA InterconnectionPCBs CablesKEY1, KEY2 Voltage Circuit Block DiagramAss’y Picture Pin Configuration 2012Y IR + Soft touch PCB PinmapSpec 내용 Power LED Scenario2012Y IR + Soft Touch LED Lighting Scenario Touch Key Threshold Level Ta = 25ºC Introductions of GP4 Sensor Touch ICManual of Touch Sensitivity Addr Value Touch EEPROM Register change with USB portIntroductions of 12Y RF ass’y + Magic Remote control ™ Motion Data Transmission 1. System™ Pairing Information Transmission Send to TV after Paired Pairing Information Transmission Sequence← ok → powermute homeConnector 3. M4 Block DiagramAA x 2 Battery Power ManagementFunction 4. Function list주요 Item ManufacturerDescription 5. RF Pairing / Un-pairing MethodMethod Introductions of 12Y WIFI built in ass’y WIFI built in feature WIFI Built in ass’y featureLGITBlock diagram Pin mapWIFI Built in Block-diagramArcadyan WIFI Built in ass’y Specification 1. Widevine? 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM 12Y Widevine & HDCP 2.0 & NETFLX1. Widevine? ‰ HDCP 2. HDCP 2.0 & NETFLIX?‰ Netflix ‰ Why HDCP2.0?3. DTCP? Æ 추가 4. Changed BOMAs-Was CurrentLGE Internal Use Only Contents of LCD TV Standard Repair Process Page Contents of LCD TV Standard Repair Process Detail Technical ManualError symptom ContentReplace T-con Board or module And Adjust VCOM Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D CableA2 Check Power Board 24v output Check Power Board 12v,3.5v etcNormal Y voltage? Check various voltages of Power BoardRevised date 3.5V,12V,20V or 24V…S/W Version Check RF Signal levelCheck Check S/W Version ※ Check and Color error?A10/ A11 Check color by input -External Input COMPONENT -RGBExternal Input error Component error RGB error HDMI DVI External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Replace Main B/D adjust VCOMMeasure voltage of each output of Power B/D Check Power LEDPower LED Y On? Check Power On ‘”High”Power off List Error?Check Power Off Mode If Power Off mode is not displayed Check Power B/D voltageNormal of Power BoardCheck user menu Speaker off Check audio B+Check audio B+ Voltage In case of External Input signal error Check and fix external devicePower B/D don’t have problem Check & Repair Cable connection Connector solderCheck IR Output signal Check 3.5v on Power B/D Replace Power B/D or Replace Main B/Daccordance Recognition errorExternal Input and Identify nose type F. Exterior defect Adjust VCOMPage ALL MODELS Standard Repair Process Detail Technical ManualSMAW200-H24S YEONHO 24 Pin Power Board ↔ Main BoardEdge LED date 1. Checking method for remote controller for adjustment date Checking method date Appendix Exchange T-Con Board Noise Fuse Open, Abnormal power sectionAbnormal Display GRADATIONNo picture/Sound Ok Appendix Exchange PSULED driverNo Light Dim LightUn-repairable Cases In this case please exchange the module Appendix Exchange the ModuleUn-repairable Cases In this case please exchange the module Appendix Exchange the Moduledate Edge LED Edge LED When st-by, only 3.5V is normally onFor ’10 models, there is no voltage out for st-by purpose Check “power on” pin is high B. Power error Off when on, off whiling viewing date Only for training and service purposesStandard Repair Process Detail Technical Manual ALL MODELSALL MODELS Standard Repair Process Detail Technical ManualALL MODELS LCD module change T-Con board change
Top Page Image Contents