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LG Electronics 47LA62**-Z* Flat Panel Television User Manual

1. LGE Internal Use Only 5 Video Audio In Block Diagram EL Parallel TS ERROR VAL SYNC CLK Parallel TS ERROR VAL SYNC CLK gt JackSide SoC Side JK501 COMP1_Y AV1_CVBS pl coveiravi cves soc gt CVBS2P COMP1 Pb COMP1_Pb_SOC gt PBOP COMPI Pr 1 gt gt PROP COMP1 AV1 DVI L IN comptsavisovi_in_soc COMP1 AV OVI R IN 1 soc gt gt AINE RI SCART 11 SC_CVBS_IN __sc cves_N_soc gt CVBS3P SC_ID FB gt gt ADINO_SRV SOY1 SC_R G B scosso gt gt PRIP YIP SC LR IN scus soc N uos JK4600 11 Tuner TU_CVBS TU_CVBS lt TUNER IF P N TUNER IF P N ge IMPXP ADCINP_DEMOD ADCINN DEMOD se 7 I Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes LGE Internal Use Only 6 Audio Out Block Diagram COMP1 AVI DVI L IN SOC IALi ADAC 25 L Rout ur DTV MNT L R OUT COMP1 AV1 DVI R IN SOC AINA _L_AADC OP AMP AIN4 R AADC H a i 8 DVB onl 5 18 tromcuxy AUD_MASTER_CLK AINT 1 AADC AINT R AADC IAOSDATAO AUD LRCK 1 AOLRCI TIRES AUD SCK 4
2. SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes SPDIF MODEL DATE ELECTRONICS SHEET Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes LGEectronics LG ELECTRONICS MODEL BLOCK DATE SHEET Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only UART FOR DEBUG AV COMPONENT REAR LGEectronics ELECTRONICS MODEL BLOCK DATE SHEET Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only M_REMOTE i SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes OCP USB2 3
3. LG ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes USBI1 OCP USI DVR Ready MAX 1 5A 164500 BD82020FVJ MODEL A NT FOR PROTECTION FR N ARDS WHEN SER SECRET amena eic pars i oseo zon EE BLG BOKO Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes Full Scart 18 Pin Gender LGEectronics ELECTRONICS MODEL BLOCK DATE SHEET Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only Ethernet Block SECRET LG ELECTRONICS Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes AGND_PLL VDD PLL THERMAL DGND PLL GND DGND MOSS S NNN AMP_MUTE_PWR_
4. Global Option Name Vout 0 6 1 R1 R2 Tuner Name T Example of Optio 22 CHB Max mA TU QT Lc E 1 Max mA pan Dual NIM ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes TU6600 TU6601 TDSS G501D B E 501D B 0000000000 000 dm ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes RS 2 0C Qervtug oc ENA JIS SCHEMETIC DIAGR NT FOR PROTECTION FR N SHO ARDS WHEN SER SECRET di MODEL DATE THE CRITICAL COMPONENTS Di THE waat oF screenie LGElectronics ELECTRONICS BLULK Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes DVB S2 LNB Part Allegro Option LNB
5. Try to new network connection match with AP and ether setting A 4 s lt Normal S i 2 icture Replace Main B D Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 33 88 LGE Internal Use Only Standard Repair Process LCD TV Check status G Cl Competibility Error Established date 2012 12 06 Check defect slot Check it s worked Cl 1 2 or 1 3 Setting Antenna CI information lt Read SY Information In start menu Check status of Cl Key in the N Y Or damage of CI CAM Check damage of CI slot pin 2 Check SVC Bulletin Exterior defect ADS Pd Is theren NCl key Main B D Or Download Cl Key Y gt 22 Old version of 1 2 CAM is not worked atthe TV that is supported Cl 1 3 Check CAM S W Version Revised date L M Repl svc Bulletin 27 Wired Wifi status Main B D v Cable sub Assy Y CAM S W Upgrade By OTA X A a Normal Picture lt 7 a Close Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 34 88 LGE Internal Use Only Contents of
6. 2 I YI I YI I I l 303036302021 i I I I I YI Y I 1 T Multi Drop Point to Point Features Data rate 660Mbps 10blt FHDI20 External clock Data rate 1 8Gbps Embedded clock Control Simple structure Fewer Lines 12 Embedded clock Ment Standardization low EMI Clock skew free Easy to PCB design Too many lines 36 Clock skew Transmission Overhead Demerit EMI due to clock lines Bandwidth limit Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 5 88 4bit delimiter LGE Internal Use Only NFC Near field communication Near field communication NFC is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity usually no more than a few centimetres Present and anticipated applications include contactless transactions data exchange and simplified setup of more complex communications such as Wi Fi Communication is also possible between an NFC device and an unpowered NFC chip called a tag t oY 5 E 4 From Smart phone to TV 9 5 E Samrt phone close to 4 Tag Player choose M f 248 amp 71 From TV f to Smart phone g On Touch the smartphone to the Tag On sticker Using an LG smartphone
7. 1 Country Press Country Group Code aen w x Maie Number D L Step 3 Select Start Connection button in Network Connection Test ton 9 Spread Spectrum Tool Option Teni Option Se run Toni pions Soroa Selection Toal 13 RF Remocon Test Tool Options Too Ops 3 1 5 6 8 Component SCART RGB 7 0 PP History Ver 171 EM X 08 Lb Step 4 If the system finds any AP like blow PIC it is working well 4 5 3D function test Pattern Generator MSHG 600 MSPG 6100 Support HDMI1 4 HDMI mode NO 872 pattern 83 1 Please input 3D test pattern like below Copyright 2013 LG Electronics Inc rights reserved 18 LGE Internal Use Only Only for training and service purposes 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 4 Check LED light ON at 18 V menu 5 Check LED light ON at 22 KHz tone menu 6 Press Blue key ETC PIP INPUT in Adj Remote control to make LNB off 7 Check LED light OFF at 18 V menu 8 Check LED light OFF at 22 KHz tone menu Test result 1 After press LNB On key 18 V LED and 22 KHz tone LED should be ON 2 After press LNB OFF key 18 V LED and 22 KHz ton
8. A Check RF Cable pde S um Connection Normal Check svc N Use Signal Test _ Normal gt 1 Reconnection Picture S W Versi M gullet T Check Signal status Picture Close 2 Install Booster 7 N N TNI S W Upgrade Check Contact with signal distributor Tuner soldering or broadcaster Cable or Air D gt N Replace Main B D Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 21 88 LGE Internal Use Only Standard Repair Process LCD TV lt gt Check RF Signal level Error 2012 12 06 symptom Tuning fail Picture broken Freezing Check RF signal cable DVB satellite signal or not Check whether other equipments have problem or not By connecting RF Cable at other equipment Set Top Box Different maker TV etc Normal N S 12 4 Signal gt gt AT Check satellite setting L Check LNB frequency P Normal Check satellite A setting Check Satellite connection 6 Check S W Version N Contact with signal distributor or broadcaster Cable or Air DiSEqC motor etc N X Change satellite setting match with installed ANT Revised date M sve Check Replace lt soldering Main B D Ao s w DU Ze end N N Picture 2d T clo
9. RENESAS MICOM Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only Only for training and service purposes Interconnection 1 47LA660S ZA Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes PCBs O0000 Main PCB Power Board Local key Assy RF Assy WIFI Assy Cables Main LPB 24Pin Local Dimming Cable Main Module EPI Cable 50 amp 50Pin LED driver PSU IR 8Pin Cable WiFi 6Pin RF 8Pin Cable SPK Cable LGE Internal Use Only Interconnection 2 47LA660S ZA PCBs Assy Cables o IR to Local Key 3Pin Cable IR to Logo Assy 4Pin Cable Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only Only for training and service purposes 2 88 Introductions of 13Y RF ass y Magic Remote control Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes Sr oN System Remote Buttons MR13 Block Diagram Function List Pairing Un pairing Method 3 88 LGE Internal Use Only 1 System RF Receiver Remote TV Pairing Information Transmission Send to TV after Paired Static Calibration Data Bypass only Remote FW ver Save also in Receiver BD_ADDR Save also in Receiver Pairing Information Transmission Sequence When it is paired the remote sends packets pairing success F
10. trace widths should b m sized to conduct at least 3A Cupet trace widths should be sized to conduct at least 2A F1 I K HIS SCHEMETIC DIAGRAM INCORPORATES FEAT R PROTECTION FROM X RADIATION AND ELECTRI OCK RDS WHEN SERVICING IF IS SECRET ESSENTIAL TH URES SPECFIED TS USED FOR THE CRITICA THE THE SCHEMETIC AX SYMBOL LGElectronics LG ELELTRONILS Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes OMPONENTS IN BLOCK LGE Internal Use Only SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes LG ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes lt POWER BLOCK gt REVERSE PAT
11. log Demod A USB1 24 gt 1 ee ASA use 2 1 9582 4 OCP gt 2 uses lt HDMH TUS M HDMI MUX EPI D LGE 2122 c2 125 Out I2C 1 HIP AMP 7000 cVBSIYPbPr 2 1 CVBS RGB UART A IR R omnc Ll 4 sor our LAN ETHERNET 120 3 DDR3 1600 X 16 256MB 1EA SYSTEM EEPROM 256 HDCP EEPROM gt 16Kb i eMMC 4GB 41P 50 gt Audio AMP NTP7513 LOCAL DIMMING I BLUTOOTH SUB ASSY Sub Micom RENESAS R5F1000G LGE Internal Use Only 2 LGE 2122 2 Block Diagram 3 3V_Normal 43 5V ST 2 7KQ 3 3V_Normal 2 7KQ 3 3V_Normal Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 105 LGE 2122 12C_SDA3 12 5 12C_SDA2 12C_SCL2 I2C SDA1 12 SCL1 12C_SDA4 12C_SCL4 12C_SDAS 12 SCL5 12 SDA6 12 5 6 3 3V_Normal 2 7KQ 3 3V_Normal 2 7KQ 3 3V_Normal 2 7KQ LGE Internal Use Only 3 Power Block Diagram DDRV 1 5V DDR DDR VDD 3A DDR VDDQ 1 23V 2 TUNER 1 23V HDMI_EEPROM RGB EEPROM 45V ON TUNER 5V TU 3 3VDAC
12. Minimize bodily motions when handling unpackaged replace ment ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity suf ficient to damage an ES device m a n General Soldering Guidelines 1 Use grounded tip low wattage soldering iron and appropri ate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead Keep the soldering iron tip clean and well tinned Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25 cm brush with a metal handle Do not use freon propelled spray on cleaners Use the following unsoldering technique a Allow the soldering iron tip to reach normal temperature 500 F to 600 F b Heat the component lead until the solder melts c Quickly draw the melted solder with an anti static suction type solder removal device or with solder braid CAUTION Work quickly to avoid overheating the circuit board printed foil Use the following soldering technique a Allow the soldering iron tip to reach a normal temperature 500 F to 600 F b First hold the soldering iron tip and solder the strand against the component lead until the solder melts Quickly move the soldering iron tip to the jun
13. WTK AVDDSS DAC PANEL VCC 12V LNB MTK AVDD12 LVDS 1 2V Core n MTK AVDD PANEL POWER LNB option 6A I imo 3 3V Noraml 4A MICOM VDD IR A ssy SPDIF IR A ssy M REMOTE HDCP EEPROM NVRAM MTK DVDD3V3 MTK AVDD33 AADC NTP 7400 PVDD1 TROD NTP_7400 PVDD2 LVDS AMP MTK AVDD33 STB EMMC VCC EMMC VCCQ TUNER 3 3V TU 5V USB 1CH DCDC 4A 2CH OCP 1 2A USB WIFI USB2 Max 1 2A USB3 Max 1 2A Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 4 Tuner Cl Block Diagram TDSQ 65010 3 3V_S2_DEMOD 32 3 3V_TUNER 5 1 8V TUNER 7 23V S2 DEMOD 30 82 F22 OUTPUT 33 LNB 36 82 SCL 34 S2 SDA 35 RESET 2 ISLC 3 ISDA 4 ERROR 16 ISYNC 17 VALID 18 IMCLK 19 00 7 20 27 S2 RESET 31 DIF P 10 T C DIFIN 11 3 3V_D_Demod 3V TU 1 18 TU 1 23V_D_Demod 3 3V_NORMAL gt I2C SCLA I2C SDA4 RESET1 IC2 SDAG IC2 SCL6 DEMOD1 TS SYNC FE DEMOD1 TS VAL FE 1 TS CLK FE DEMOD1 TS DATA 0 7 182 RESET ADCINP_DEMOD ADCINN
14. A25 Check audio B Voltage 24V A Z Normal voltage Replace Power B D Replace B D Check and fix external device Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 28 88 LGE Internal Use Only Standard Repair Process i Established us D General Function Problem Avie 2012 12 06 LCD TV symptom Remote control amp Local switch checking Revised date 1 Remote control R C operating error Replace Main B D gt 27 n A27 Check itself Normal Normal dod Sea Normal B Normal f 1 lt nn2 9 Operation operating operating On Main B D Voltage Signal N m Ad Check R C Operating Check amp Replace Close Check 3 5v on Power B D Repair Replace When turn off light Baterry of R C Replace Power B D or IR B D in room Replace Main B D Power B D don t have problem If R C operate Norma gue Explain the customer operating Close cause is interference N from light in room N Replace Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 29 88 Standard Repair Process LCD TV D Function error Established date 2012 12 06 Error symptom External device recognition error Che
15. HDMI 78 03 0C 00 10 00 80 1E 20 CO OE 01 4F FC 08 10 18 1006 10 16 10 28 10 HDMI2 7803 0C 00 20 00 80 1E 20 CO OE 01 FC 08 10 18 1006 10 16 10 28 10 HDMI3 78 03 0C 00 30 00 80 1E 20 CO OE 01 4F FC 08 10 18 1006 10 16 10 28 10 Colorimetry Data Block HDMI 1 The Model not supporting XvYcc INPUT MODEL HDMI1 E3 05 00 00 HDMI2 E3 05 00 00 HDMI3 E3 05 00 00 15 LGE Internal Use Only 4 1 2 2D EDID DD DATA a E E 13 15 D E Em 00 w Reference HDMI4 RGB In the data of EDID bellows may be different by S W or Input mode Product ID HEX EDID Table DDC Function 0001 0100 Analog 0001 0100 Digital Serial No Controlled on production line Month Year Controlled on production line 4 2 3 Equipment connection MAP Color Analyzer peso Computer RS 2326 irsz Pattern Generator Signal Source HTV intemal pattem is used not needed 4 2 4 Adj Command Protocol lt Command Format gt START eE A 50 A LEN 03 00 A VAL A STOP LEN Number of Data Byte to be sent CMD Command VAL FOS Data value CS Checksum of sent data A Acknowledge Ex Send 00 DD Ack A 00 okDD RS 23
16. cK 5 WHEN SER ae ah IE MODEL iF ul DATE iTURES SPECFIED PARTS BE USED FOR Qc ELELTRONILS BLOCK 2 21 SHEET THE CRITICAL COMPONENTS IN THE SYMBOL M OF THE SCHEMETIC Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes LG Life s Good 2013 LED LCD TV Engineering guide lt Applicable Model Mid end Platform gt XXLA74 Z XXLAT1 Z XXLA69 66 Z XXLA64 62 61 Z XXLN57 Z Copyright 2013 LG Elect nly for training and servici 1 88 CONTENT 1 New features 2 Main PCBs 3 Block Diagrams 4 Structure of TV set and connection of sub ass ys 5 New sub ass ys Instruction of new sub ass ys 6 Adjust way of new features 7 Repair guide Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 2188 EPI Interface EPI Embedded Point Point Interface Features Point Point topology support 2 Pair option CDR Clock Data Recovery Bandwidth up to 1 85Gbps pair at FHD 120Hz 10 bit application Lock signal cascading and feedback to T Con Embedded Control Data Merits Better reliability on common noise data skew and better EMI margin Fewer lines than mini LVDS Slim design Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 3 88 LOCK
17. A24 Check user menu Speaker off AN Ch i 4 N eck audio B 24V Y lt Off of Power Board gt Cancel OFF Replace Power Board and repair parts Check Speaker disconnection Disconnection Replace MAIN Board b Replace Speaker Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 27188 LGE Internal Use Only Standard Repair Process Error C Audio error 2012 12 06 LCD TV symptom Wrecked audio discontinuation noise abnormal audio discontinuation noise is same after Check input signal compared to No audio s Check input N signal RF 127 External Input up d signal iN When RF signal is not received Request repair to external cable ANT provider In case of External Input signal error Check and fix external device AN Wratked Check and A h place p Pcontinuation speaker and all audi e connector d RE PAS audio is Itinuatiori lt Noise only gt gt Replace Main B D A Wrecked audio Discontinuation Noise only 7 Yor Analog Wr Cked a dio Discontinuation N Noise only for External Jnput Connect and check other external device audio Y Revised date
18. Ex GPLR GP2 GP4 Startrek Ex 3545 19 MT LML Country Group Country Area Code or Option 162 Widevine Yes Built In Wifi Yes DVs s Wasu v curv no DTCP Rx CNTV Yes China Smart TV Only CNTV 1D BB Bl Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes Current Model Info Platform NETcASTs EX GPIR GP2 GP4 Startrek Main IC mese x BOM3549 13 MTK LML Model Data Tool Options Country Group EU Tool Option EU Country is Tool Options 29383 AreaCode or Option 154 Tool Options Too Options psa Tool Options Tool Option ene Commercial Tool Option Function Modei sn write Widevine 1 Download ve s witi res i AC Address Yes res ESI Download Yes wasu wE ony ws HDCP 20 Tx DIcP Rx uc v HOC 20 Rx Google ca iv HDCP 1 4 Rx CNTV Yes China Smart TV Ony CNTY 1D B 28 OChanged Item Separate HDCP check box HDCP 2 0 Tx HDCP 2 0 Rx HDCP 1 4 Rx 16 88 LGE Internal Use Only Contents of LCD TV Standard Repair Process Error symptom High category Error symptom Mid category Remarks Video error No video Normal audio No video No audio Video error
19. Figure1 Topology Table 1 Example of FHD 120Hz TV EPI FHD 10bit 960Ch 60Hz 120Hz 240Hz Transmission Line 12 12 24 Bandwidth 0 84Gbps 1 68Gbps 1 68Gbps LGE Internal Use Only EPI Interface mini LVDS vs Comparison What to change mini LVDS LCM T con to S Driver IC HF mini FHD 10bit LVDS 60Hz 120Hz 240Hz No of Signal 36 36 72 60pin 60pin 80pin Connector 2ea 2ea 2ea Difficult to upgrade bandwidth limit Multiple number of wires needed for higher bandwidth EPI Embedded clock P to P Interface FHD 10bit EPI 60Hz 120Hz 240Hz 960ch 960ch 720ch No of Signal 12 12 32 50 pin 70pin Connector 2 2 Better reliability on common noise No data skew Better EMI margin Lower cost Cable Connector Slim S PCB design 14mm gt 10mm helps slimmer TV Bandwidth Capability FHD 120Hz 10Bit 594Mbps 36Lines 1 65Gbps 12Lines FHD 240Hz 10Bit 594Mbps 72Lines 1 25Gbps 32Lines Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 4 88 EPI Interface mini LVDS vs HF mini LVDS EPI Topology 2 4 OM ie y our f 07 222 OOS eX Protocol
20. Side by side half Secondary SDTV 576P 720576 Frame packing Secondary SDTV 576P P 50 54 17 8 Line alternative SDTV 576P 9 31 25 50 54 1718 Side by side Full SDTV 576P Top and Botiom Secondary SDTV 5761 10 16625 80 27 21 side by side half Secondary SDTV 5761 720 576 Frame packing Secondary SDTV 5761 1 2128 50 54 21 Field alternative SDTV 5761 12 15 625 50 54 21 Side by side Full SDTV 5761 Top and Botiom Primary HDTV 720P 43 37500 50 7425 19 side by side half Primary HDTV 720P Frame packing Primary HDTV 720P bi m ad Mas 79 Linealtemative HDTV 720P 15 37 500 50 148 5 18 Side by side Full HDTV 720P ae Top and Botiom 720P 16 44 96 145 59 94 60 74 18 74 25 4 Side by side half 720P Frame packing Primary HDTV 720P aF 89 91 90 59 94 60 148 35 148 5 4 Line alternative HDTV 720P 18 44 96 45 59 94 60 148 35 148 5 4 Side by side Full HDTV 720P Top and Boltom Secondary HDTV 10801 19 33 72 33 75 59 94 60 74 18 74 25 5 Side by side half Primary HDTV 10801 Frame packing Primary HDTV 10801 20 67 432 67 50 59 94 60 148 35 148 5 5 Field alternative HDTV 10801 21 1920 1080 33 72 33 75 59 94 60 148 35 148 5 5 Side by side Full HDTV 10801 Top and Boltom Secondary HDTV 10801 25 28129 50 00 74 25 20 side by side half Primary HDTV 10801 Frame packing Primary HDTV 10801 23 58 25 50 00 1485 20 Field alternative HDTV 10801 24 28 125 50 00 1
21. TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV ATV test on production line After downloading have to adjust Tool Option again 1 Push IN START key in service remote control 2 Select Tool Option 1 and push OK key 3 Punch in the number Each model has their number Copyright 2013 LG Electronics Inc All rights reserved 20 Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM aee 171021045 lt InenosoT gt Y ASSY a as lt A 219 gt 52 Hlooini8 lt 17201 4 0 ias 90 t Z z391 lt ln SINGH SSIJIHS dos zinaH i gt er waj 905 ida p onne lt gt asi 1 q WONdd3WalsAS 4 0 6 11 20 S is si d s ET sana poweg sound 2501 M F Gd yy Powed Gal ws 1 1 Sid 101512 LGE Internal Use Only 21 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safely related characteristics
22. d M Repair Power Board or parts Replace T con Board or module And Adjust VCOM A28 Replace Main Board Re enter White Balance value Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 19 88 LGE Internal Use Only Standard Repair Process LCD TV Error symptom A Video error Established date 2012 12 06 No video No audio Revised date Check various voltages Y Check and No Video comas replace No audio 3 5 12 20 or 24V voltage MAIN B D pe Replace Power Board and repair parts Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 20 88 Standard Repair Process nm Ee A Picture Problem ete 2012 12 06 t SY pom Picture broken Freezing Revised date gt AG By using Diagnostics menu on OSD gt Set up Support Signal Test ici strength Normal over 5096 Signal Quality Normal over 5096 By using Digital signal level meter Check RF Signal level N Y Check whether other equipments have problem or not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc N i AT P _7 Normal S Picture
23. land Latvia Estonia Lithuania Poland Portugal Romania Albania Bosnia Serbia Slovakia Beralus Supported satellite 22 satellites HISPASAT 1 10 ATLANTIC BIRD 2 NILESAT 101 102 ATLANTIC BIRD 3 AMOS 2 3 THOR 5 6 IRIUS 4 EUTELSAT W3A EUROBIRD 9A EUTELSAT W2A HOTBIRD 6 8 9 EUTELSAT SESAT ASTRA 1L H M KR ASTRA 3A 3B BADR 4 6 ASTRA 2D EUROBIRD 3 EUTELSAT W7 HELLASSAT 2 EXPRESS AM1 TURK SAT 2A 3A INTERSAT10 Copyright O 2013 LG Electronics Inc All rights reserved 6 LGE Internal Use Only Only for training and service purposes No Specification Remarks 1 PAL BG 2 PAL DK PAL UV 2 Broadcas ngsystem 4 BG 5 DVB T Model L V Z T2 only Model 6 DVB C 7 DVB T2 8 DVB S S2 DVB S Satellite 1 Digital TV VHF C Band Ku Band 2 Analogue TV Program coverage SETS UHF E21 to E69 CATV 5110520 HYPER 21 to 547 gt DVB T Guard Interval Bitrate_Mbit s 1 4 118 1 16 1 32 Modulation Code Rate QPSK 1 2 2 3 3 4 5 6 7 8 16 QAM 1 2 2 3 3 4 5 6 7 8 64 QAM 1 2 2 3 3 4 5 6 7 8 gt DVB T2 Model L V Z T2 only Model Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 1 128 19 128 19 256 Modulation Code Rate QPSK 1 2 2 5 2 3 3 4 5 6 Analog Upper Heterodyne 16 QAM 1 2 2 5 2 3 3 4 5 6 4 Recelving syste
24. video lag stop fail tunning Color error Vertical Horizontal bar residual image light Spot external device color error Power error No power Off when on off while viewing power auto on off Audio error No audio Normal video Wrecked audio discontinuation noise Function error No response in remote controller key error recording error memory error External device recognition error Noise Circuit noise mechanical noise Exterior error Exterior defect Network error Connection defect Network speed low First of all Check whether there is SVC Bulletin in GCSC System for these model Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 17 88 LGE Internal Use Only Contents of LCD TV Standard Repair Process Detail Technical Manual Error symptom Content Remarks A Video error_ No video Normal audio Check LCD back light with naked eye LED driver B 24V measuring method Check White Balance value Power Board voltage measuring method A Video error_ No video Video lag stop TUNER input signal strength checking method LCD TV Version checking method A Video error_Color error LCD TV connection diagram Tuner Checking Part Check Link Cable 1 05 reconnection condition 32 37 42 47 55 32 AUO Adjustment Test pattern ADJ Key A Video
25. 22 POWER OFF BY UNKNOWN 1 EF RV LINKNOWN Entry method 1 Press the IN START button of the remote controller for adjustment 2 Check the entry into adjustment item 3 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 51 88 Standard Repair Process Detail Technical Manual LCD TV C Audio error No audio Normal video praedi 2012 12 06 Content Checking method in menu when there is no audio ERE A24 lt ALL MODELS Sound Out TV Speaker External Speaker Optical HDMI ARC lt BEY Sound Sync Optical Sound Sync Wireless Checking method 1 Press the MENU button on the remote controller 2 Select the SOUND function of the Menu 3 Change TV Sound Out to TV Speaker Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 52 88 Standard Repair Process Detail Technical Manual Error 1 i LCD TV symptom Audio error No audio Normal video Established 2012 12 06 Content Voltage and speaker checking method Revised A25 when there is no audio date lt ALL MODELS 24 Pin Power Board lt Main Board SMAW200 H24S 1 1 Power 2 Inverter On off 3 3 5V 4 PWM Dim 1 5 3 5V 6 PWM Dim 2 GND 8 GND 4 2 24V 10 24V 11
26. 31 VESA SVGA 5 1024 x 768 Q60Hz 48 363 60 00 VESA XGA 6 1152 x 864 60Hz 54 348 60 053 VESA 7 1280 x 1024 60Hz 63 981 60 020 VESA SXGA 8 1360 x 768 Q60Hz 47712 60 015 VESA WXGA 9 1920 x 1080 60Hz 67 5 60 00 WUXGA Reduced Blanking 10 19201080 25 HDTV 1080P 11 19201080 33 716 33 75 29 976 30 00 HDTV 1080P 12 1920 1080 56 250 50 HDTV 1080P 13 1920 1080 67 43 67 5 59 94 60 HDTV 1080P Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 7 3D Mode 7 1 HDMI 1 4b 3D supported mode automatically No Resolution Hefreq kHz V freq Hz Pixel clock MHz Vic 3D input proposed mode Proposed Top and Bottom Secondary SDTV 480P 314601315 6094 60 2943 Side by side half Secondary SDTV 480P 640480 Frame packing Secondary SDTV 480P 2 62 938 63 59 94 60 50 35 50 4 Line alternative SDTV 480P 3 31 469 31 5 59 94 60 50 35 50 4 1 Side by side Full SDTV 480P Top and Botiom Secondary SDTV 480P 4 31 469 31 5 59 94 60 27 00 27 03 23 siterby sidethat Secondany SDTV 480P 720 480 Frame packing Secondary SDTV 480P 5 62 938 63 59 94 60 54 54 06 2 3 Line alternative SDTV 480P 6 31 469 31 5 59 94 60 54 5406 23 SDTV 480P Top and Bottom Secondary SDTV 576P t 3125 2r 17 8
27. 50 79 273 272 288 291 312 327 8 80 19 272 271 287 290 311 326 9 120 271 270 286 289 310 325 Aging Chamber LN5xxx LAGxxx LA7xxx Aging Cool Medium Warm NC4 0 time x y x y x y Min 271 270 286 289 313 329 1 0 5 282 285 297 304 321 340 2 6 10 278 280 293 299 317 335 3 11 20 275 275 290 294 314 330 4 21 30 272 272 287 291 311 327 5 31 40 269 269 284 288 308 324 6 41 50 268 267 283 286 307 322 7 51 80 267 266 282 285 306 321 8 81 19 266 264 281 283 305 319 9 120 265 263 280 282 304 318 LGE Internal Use Only 4 3 Local Dimming Function Check 2 When 3D OSD appear automatically then select OK key Step 1 on TV z Step 2 At the Local Dimming mode module Edge Backlight moving right to left Back light of IOP module moving Step 3 Confirm the Local Dimming mode Step 4 Press exit key LN d 3 Don t wear a 3D Glasses check the picture like below Local Dimming Demo Edge LED Model 4 6 Wi Fi Test Step 1 Turn on TV Step 2 Select Network Connection option in Network Menu 4 4 Magic Motion Remote control test Results are automatically marked in Instart OSD after through the AP Magic Remocon Equipment on the line Network Status WEF Direct efi Senn Stare My TV Name
28. 720x480 31 50 60 00 480p 5 720 576 15 625 50 00 SDTV 576i 6 720 576 3125 50 00 SDTV 576p 7 1280x720 45 00 50 00 HDTV 720p 8 1280x720 44 96 59 94 HDTV 720p 9 1280x720 45 00 60 00 HDTV 720 10 1920x1080 31 25 50 00 HDTV 1080i 11 1920x1080 33 75 60 00 HDTV 10807 12 1920x1080 33 72 59 94 HDTV 1080i 13 1920x1080 56 250 50 HDTV 1080p 14 1920x1080 67 5 60 HDTV 1080p Copyright 2013 LG Electronics Inc All rights reserved 8 Only for training and service purposes LGE Internal Use Only 6 HDMI Input 6 1 DTV mode No Resolution H freq kHz V freq Hz Pixel clock MHz 1 640 480 31 469 31 5 59 94 60 SDTV 480P 2 720 480 31 469 31 5 59 94 60 SDTV 480P 8 720 576 31 25 50 SDTV 576P 4 720 576 15 625 50 SDTV 5761 5 1280 720 37 500 50 720 6 1280 720 44 96 45 59 94 60 HDTV 720P 7 1920 1080 33 72 133 75 59 94 60 HDTV 10801 8 1920 1080 28 125 50 00 HDTV 10801 9 1920 1080 26 97 127 23 97 124 HDTV 1080P 10 1920 1080 25 HDTV 1080P 11 19201080 33 716 33 75 29 976 30 00 1080P 12 19201080 56 250 50 1080P 13 19201080 67 43 67 5 59 94 60 HDTV 1080P 6 2 PC mode No Resolution H freq kHz V freq Hz Pixel clock MHz 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 31469 59 94 VESA VGA 4 800 x 600 60Hz 37 879 60
29. Content TUNER checking part EET A9 lt ALL MODELS Copyright 6 2013 LG Electronics Inc All rights reserved Only for training and service purposes 41 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error A Video error_Color error Established LCD TV symptom date 2012 12 06 Content Adjustment Test pattern ADJ Key A12 EZ ADJUST Tool Option1 Tool Option2 Tool Option3 Tool Option4 Tool Option5 Tool Option6 Tool Option7 Country Group Area Option ADC Calibration White Balance 10 Point 20 Point WB Test Pattern Sub B C V Com P Gamma Ext Input Adjust 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 Test Pattern Pattern Control Test Pattern Contol 2 Press to hide OSD Test Pattern Pattern Control Press 8 to ide OSD Test Pattem Test Pattem 1 Pattern Control meteo Black Pass 0 to ide 080 Bue 2 Press to hide OSD Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 42188 LGE Internal Use Only Appendix Exchange EPI Cable or Main B D 1 E 1L Solder defect CNT Brok
30. Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes SECRET LG ELECTRONICS Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes PLACE AT JACK SIDE PLACE AT MATIN SOC SIDE ELECTRONICS LGElectronics LGE Internal Use Only Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes Hi MODEL DATE ELECTRONICS SHEET Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes I TS INPUT Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes FROM LPB amp PSU Power DET i On semi Vout 1 222 1 R1
31. DEMOD IF N Attenuator TUNER_SIF for T2 C S TU_CVBS for T2ICIS Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes _ PCM CTL _ cisv 5V_CLON gt yec 10 TONECTRL LNB 1 Power detect 238 1 6900 71864 Ag303SESTR TB 5V CI ON 3 3 NORMAL 1 2122 F28 TCON12 SCL3 L33 SPI ici CD1 cL L30 SPI_CLK1 2 CI DET2 AG24 ADING_SRV M2TIPVR TS VAL ci vsi vst AFIS OPCTRLI M3I CI TSCLK CE1 gt CARD OPCTRLO JPCM CE2 N34 SPI_DATA R29 DEMOD_TSSYNC IPCM IORD P27 DEMOD TSVAL joan P30 DEMOD TSCLK Emm CI ADDR 0 14 CLA ADDRI 4 167102533 lt 7 CLA T34 DEMOD_RST RST gt RESET DEMOD_TSDATAO 7 P34 PVR_TSDATA1 toe r1 BACK WAIT INPACK N36 CI INT A REG gt REG P33 PVR TSDATAO PCM IROA NIRQA R36 CI_TSVAL AM18 ADIN7_SRV WE 7 Raa PVR_TSSYNC 4 705398 TS ot TS OUT CLK L AM27 ADCINP_DEMOD Ra pvR_TscLK 6 5398 5 VAL TS OUT VAL 5398 TS SYNC CLTS SYNC AN27 ADCINN_DEMOD R3S CI TSDATAU 4 TS OUT SYNC MT5398 TS IN 0 7 TS DATA 0 7 IGPIOS4 41 4 _ ya CLMDID7 amp Ts
32. Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 12 88 1 Widevine Widevine Widevine is the Solution Library offering Adaptive Streaming and DRM In BBTV when special CP do service this module is required key Currently CP which is requested to widevine is typically Australian Bigpond Live and North American CinemaNow Furthermore because the future will be the spread of widevine key download for the global model should applied to production Because operation unique key should be downloaded for Widevine Widevine key dowmload by NSU is impossible Widevine Key Widevine Key is unique data stored TV for using Widevine Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 2 HDCP 2 0 amp NETFLIX HDCP High bandwidth Digital Content Protection 1 D Protect high value digital motion pictures television programs audio against unauthorized interception and copying between a digital set top box or digital video recorder and a digital TV or PC Specification developed by Intel Corporation to protect digital entertainment across the DVI HDMI interface Why HDCP2 0 HDCP revision 2 0 supports a broader range of wired and wireless interfaces Netflix the services maintain a huge selection of movies and latest releases and offer DVD rentals via mail am
33. GND 12 GND 13 12V 14 12V 15 12V 16 24V Ea i GND 18 GND 19 GND 20 GND 21 GND 22 L DIMO VS 23 L DIMO MOSI 24 L DIMO_SCLK Checking order when there is no audio Check the contact condition of or 24V connector of Main Board 2 Measure the 24V input voltage supplied from Power Board If there is no input voltage remove and check the connector 8 Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 53 88 Standard Repair Process Detail Technical Manual Error D Function error_ No response in remote controller Established 2012 12 06 LCD TV symptom key error date ee Revised Content Remote controller operation checking method date 27 lt ALL MODELS gt P4101 GND KEY1 KEY2 3 5V_ST io o OF 70 002 OPA 997 69 2 vare Ow LOGO LED_R GND a Checking order 1 2 Check IR cable condition between amp Main board 3 Check the st by 3 5V on the terminal 4 4 When checking the Pre Amp when the power is in ON condition it is normal when the Analog Tester needle moves slowly and defective when it does not move at all Copyright 2013 LG Electronics In
34. Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Un repairable Cases In this case please exchange the module Horizontal Block Gate TAB IC Defect Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 47 88 Standard Repair Process Detail Technical Manual Error LCD TV symptom Power error power Established 2012 12 06 Content Check front display LED EE A17 Buttons Screen 00 609 7 Speakers Remote control sensor LG Logo Light Only LA64 LA66 Power Indicator Only LA62 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 48 88 Standard Repair Process Detail Technical Manual B Power error power Error LCD TV Established date 2012 12 06 Revised date 5E Content Check power input voltage and ST BY 3 5V For 10 models there is no voltage out for st by purpose When st by only 3 5V is normally on Inverter On off PWM Dim 1 PWM Dim 2 GND 24V GNO 12V 24V GND GNO L DIMO VS L DIMO MOSI 24 L DIMO_SCLK Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and
35. LCD TV Standard Repair Process Detail Technical Manual Error symptom Content Continued from previous page Remarks B Power error_No power Check front display LED Check power input Voltage amp 5 3 5V Checking method when power is ON POWER BOARD voltage measuring method B Power error_Off when on off while viewing B Power error_Off when on off while viewing POWER OFF MODE checking method POWER BOARD PIN voltage checking method C Audio error_No audio Normal video C Audio error_Wrecked audio discontinuation Checking method in menu when there is no audio Voltage and speaker checking method when there is no audio Voltage and speaker checking method in case of audio error 0 Function error_ No response in remote controller key error Remote controller operation checking method D VCOM Adjustment Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes Sequence of the Vcom adjustment 35 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error z z LCD TV symptom A Video error No video Normal audio Established 2012 12 06 Content Check White Balance value PRETI Aa EZ ADJUST Tool Option Tool Option2 Tool Option3 Tool Option4 Tool Option5 Tool Option6 G Gain Tool Option7 l Country Group B Gain Area Option AD
36. OK Sign check adj status pre mode Warm Medium Cool 6 Remove probe and RS 232C cable to complete adj Adj must begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need 2 Manual adjustment method 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10 cm of the surface 3 Press ADJ key EZ adjust using adj R C 7 White Balance then press the cursor to the right key gt When right key P is pressed 204 Gray internal pattern will be displayed 4 One of R Gain Gain B Gain should be fixed at 192 and the rest will be lowered to meet the desired value 5 Adjustment is performed in COOL MEDIUM WARM 3 modes of color temperature If internal pattern is not available use RF input In EZ Adj menu 7 White Balance you can select one of 2 Test pattern ON OFF Default is inner ON By selecting OFF you can adjust using RF signal in 204 Gray pattem Adjustment condition and cautionary items 1 Lighting condition in surrounding area Surrounding lighting should be lower 10 lux Try to isolate adj area into dark surrounding 2 Probe location Color Analyzer CA 210 probe should be within 10 cm and perpendicular of the module surface 80 100 3 Aging time After Aging Start Keep the Power ON status during 5 Minutes In case of LCD Back light on should be checked
37. Side half 2 1280 720 37 500 50 74 25 HDTV 720P Top amp Bottom Single Frame Sequential 3 19201080 3375 60 00 74 25 HDTV 10801 2D to 3D Side by Side half 4 1920 1080 28 125 50 00 74 25 HDTV 10801 Top amp Bottom 5 19201080 2700 24 00 74 25 HDTV 1080 2D to 3D Side by Side Half 6 19201080 2812 25 74 25 HDTV 1080P Top amp Bottom Checker Board 7 19204080 3375 30 00 74 25 HDTV 1080P 2D to 3D Side by Side half 8 19204080 67 50 60 00 148 5 HDTV 1080P Top amp Bottom Checkerboard Single Frame Sequential 9 82041080 5625 50 1485 10802 Row Interleaving Column Interleaving 7 3 RF Input 3D supported mode manually No Resolution Proposed 3D input proposed mode 2D to 3D 1 HD E Side by Side Half Top amp Bottom 576P 2 SD zd 2D to 3D 7 4 RF Input 3D supported mode automatically No Signal 3D input proposed mode Side by Side Half 1 Frame Compatible Top amp Bottom 7 5 USB Input 3D supported mode manually No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed mode 2D to 3D Side by Side Half 1 19201080 33 75 30 74 25 HDTV 1080 amp Bottom Checkerboard Row Interleaving Column Interleaving Photo side by Side half Top amp Bottom 640 350 720 400 640480 Others 5 E 2001000 2D to 3D 11527864 128071024
38. W version BD_ADDR to the receiver The receiver sends the pairing success packet to TV directly F W version and BD_ADDR packets are just saved on the receiver The receiver sends F W version or BD_ADDR packet to TV when it is required Motion Data Transmission Period 7 5msec Motion Data gyro accelerometer Voice Data Transmission Period 10msec Voice sampling 16khz 16bit Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 4 88 2 Remote Buttons M4 vs MR13 M4 Remote MR13 Remote Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes RF Unpaired RF Paired IR continuous BUTTON IR_CODE RF_CODE repeat EIG POWER 0x08 NONE Y IR only BACK 0x28 0x8028 Y SMART 0 7 0 807 Y 0x07 0x8007 Y Em 0x06 0x8006 Y 1 0x40 0x8040 Y 0 41 0 8041 Y Phsical OK 0x75 0x8044 Y Buttons VOICE OxDE 0x808B Y VOICE START 3D OxDC 0 800 Y MEN OxDE Ox80DE Y CH 0x00 0x8000 Y CH 0x01 0x8001 Y VOL 0x02 0x8002 Y VOL 0x03 0x8003 Y MUTE 0x09 0x8009 Y AUTO WAKEUP x 0 800 VOICE_START x 0x800A Buttons 8 X 0x800D POINT_START X 0x803E POINT_STOP x 0x803F 5 88 LGE Internal Use Only 3 MR13 Block Diagram MPU 6150 Gyro ACC Invensense 2 1 Power Ma
39. description Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 31 88 LGE Internal Use Only Standard Repair Process Error F Exterior defect Established dh 2012 12 06 LCD TV amantem Zoom part with Module exterior damage CT damage A A Remote gt ontrollep gt lamag Exterior defect Replace module Replace cabinet Revised date Adjust VCOM A28 Replace remote controller Replace stand Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 32 88 LGE Internal Use Only Standard Repair Process LCD TV G Network Error Error Established nD 2012 12 06 Symptom Exterior defect C Check Wired ethernet cable connection Check Network status Check whether AP has a probelm or not Setting gt Network gt Networ Status lt ormai SY Signal _ N Check Network connection Case1 WiFi lt Sa Check AP status lt nine Case2 Wired bow gt Check ethernet Port Check connection with AP or internet WiFi AP Wired ethernet port Y Y Check Versi Revised date AT Pd eve gt Bulletin Y S W Upgrade Check Wired Wifi status Cable sub Assy
40. error Vertical Horizontal bar residual image light spot LCD TV connection diagram Check Link Cable LVDS reconnection condition 32 37 42 47 55 32 AUO Adjustment Test pattern ADJ Key lt Appendix gt g Defected Type caused by Inverter Module Exchange Board 1 Exchange Board 2 A 2 5 n 55 driver board Exchange LED driver Board PSU A 3 5 Other PSU Exchange Module itself 1 A 4 5 Exchange Module itself 2 A 5 5 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 18 88 Continue to the next page Standard Repair Process Error symptom LCD TV A Video error Established date 2012 12 06 No video Normal audio Revised date First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS Cable Speaker Cable IR B D Cable A A1 No video Y Normal audio audio ES N Move to No 2 video No audio Precaution A7 amp Always check amp record S W Versi ind White Balance value before replacing the Main Board Check Back Light 2 On with naked eye 12v 3 5v etc Check Power Board 3 Y svoltage Y Repair Power Board or parts Replace Inverter voltage or module
41. leads as close as possible to the component body Bend into U shape the end of each of three leads remain ing on the circuit board 3 Bend into U shape the replacement transistor leads 4 Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the with long nose pliers to insure metal to metal contact then solder each connection Power Output Transistor Device Removal Replacement 1 Heat and remove all solder from around the transistor leads 2 Remove the heat sink mounting screw if so equipped 3 Carefully remove the transistor from the heat sink of the circuit board 4 Insert new transistor in the circuit board 5 Solder each transistor lead and clip off excess lead 6 Replace heat sink Diode Removal Replacement 1 Remove defective diode by clipping its leads as close as pos sible to diode body Bend the two remaining leads perpendicular y to the circuit board Observing diode polarity wrap each lead of the new diode around the corresponding lead on the circuit board Securely crimp each connection and solder it Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder o Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow st
42. off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on the component side of the circuit board Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to ensure that a hazardous condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly con nected to the affected copper pattern Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges LGE Internal Use Only SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 1 Application range 3 Test method This specification is applied to the LED TV used LD33B 1 Performance LGE TV test method followed chassis 2 Demanded other specification Safety CE IEC specification 2 Requirement for Test EMG CEEC Each part is tested as below without special appointment 1 Temperature 25 C 5 C 77 F 9 F CST 40 C 5 2 Relative Humidity 65 10 3 Powe
43. service purposes 49 88 Standard Repair Process Detail Technical Manual Error Established LCD Tv symptom Power error power date 2012 12 06 Content Checking method when power is ON EE A19 Check power on pin is high Power on Inverter On off PWM Dim 1 GND PWM Dim 2 GND 24N 24N GNO GND 12V 12V 12V 24N GND GND GNO GNO GNO L DIMO VS L DIMO MOSI L DIMO SCLK Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Error ili lew Established LCD TV symptom Power error when on off whiling viewing 2012 12 06 Content POWER OFF MODE checking method 2 302 22 lt ALL MODELS gt 0 POWER_OFF_BY_AUT 1 POWER_OFF_B System 1 2 POWER_OFF BY System 2 3 POWER OFF BY Y REMOTE KEY REMOTE KEY REMOTE KEY REMOTE KEY Model Number D L BY INSTOP KEY 4 1 P E 4 POWER OFF BY Test Option orm T Spread Spectrum 10 Sync Level 11 Stable Count 12 SDP Server Selection 13 RF Remocon Test 14 Access Code TE POWER OFF BY 17 POWER OFF BY UNKNOWN 18 POWER OFF BY UNKNOWN 19 POWER OFF BY UNKNOWN 20 POWER OFF BY UNKNOWN 21 POWER OFF BY UNKNOWN
44. to move on to next process 7 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 amp SIGNAL CABLE METAL GND Internal Pressure TEST POWER CORD GND amp LIVE amp NEUTRAL LEAKAGE CURRENT At 0 5 mArms 8 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 0 7 Vrms No Min Typ Max Unit Remark Audio practical 9 10 12 4 max Output UR raok Distortion 10 10 8 vms max Output AVL Off S ia Clear Voice Off 2 Speaker amp o 12 impedance LGE Internal Use Only 9 USB S W Download Service only 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick your downloaded program version in USB Stick is Lower it didn t work But your downloaded version is Higher USB data is automatically detecting Download Version High amp Power only mode Set is automatically Download 3 Show the message Do not unplug Updating Software 6 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option explain the Tool option next stage If downloading version is more high than your TV have
45. 2C Command used during auto adjustment ex Monthly 01 01 RS 232C COMMAND Year 2012 16 CMD ID _ DATA Explantion Model Name Hex LGTV wb 00 00 Begin White Balance adjustment Chassis MODEL wb 00 10 Gain adjustment internal white pattern 10338 000000 00 4 47 20 54 56 0A 20 20 20 20 20 20 20 wb 00 1f Gain adjustment completed wb 00 20 _ Offset adjustment internal white pattern Checksum LG TV Changeable by total EDID data wb 00 27 Offset adjustment completed 91 o2 es End White Balance adjustment 43 15 X wo 00 internal pattem disappears HDMI2 48 05 x HDMI3 43 F5 x Ex wb0000 gt Begin white balance auto adj _ wb 00 10 gt Gain adj D Vendor Specific HDMI ja 00 ff gt Adj data INPUT MODEL NAME HEX jb 00 cO HDMI 67 03 0C 00 10 00 80 2D a HDMI2 67 03 0C 00 20 00 80 2D HDMI3 67 03 0C 00 30 00 80 2D wb 00 1f Gain adj completed 4 2 White Balance Adjustment 4 2 1 Overview WIB adj Objective amp How it works 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 In order to prevent saturation of Full Dynamic range and data one of RIGIB is fixed at 192 and the other two is lowered to find the desired value 3 Adjustment condition normal te
46. 4 3D supported mode manually amp automatically Copyright 2013 LG Electronics Inc rights reserved 11 LGE Internal Use Only Only for training and service purposes 7 6 HDMI PC Input 3D supported mode manually No Resolution H freq kHz V freq Hz Pixel clock MHz input proposed mode Proposed 1 1024 768 48 36 60 65 2D to 3D Side by Side half 768P Top amp Bottom 2 1360 768 4771 60 85 5 2D to 30 Side by Side half 76 Top amp Bottom 2D to 3D Side by Side half Top amp Bottom Checker Board 1920 1080 67 500 60 148 50 Single Frame Sequential HDTV 1080P Row Interleaving Column interleaving 640 350 7204400 4 Others 2D to 3D 640 480 800 600 11527864 7 7 DLNA Input 3D supported mode manually No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed mode 2D to 3D Side by Side Half Top amp 25 7438 Bottom Checker Board Row Interleav ing Column Interleaving Photo Side by Side Half Top amp Bottom 3D supported mode manually amp automatically 7 8 Component Input 3D 3D supported mode manually No Resolution H freq kHz V freq Hz Pixel clock Proposed 3D input proposed mode 1 1280720 4500 60 00 74 25 HDTV 720P 2 1280720 37 500 50 74 25 HDTV 720P 192040
47. 48 5 20 Side by side Full HDTV 10801 Top and Botiom Primary HDTV 1080P 25 26 97 27 23 97 24 74 18 74 25 32 Side by side half Primary HDTV 1080P Frame packing Primary HDTV 1080P 26 43 94 54 23 97 124 148 35 148 5 32 Line alternative 1080P 27 26 97 27 23 97 24 148 35 148 5 32 Side by side Full HDTV 1080P Top and Boliom Secondary HDTV 1080P 28 264125 25 m 33 side by side half Secondary HDTV 1080P Frame packing Secondary HDTV 1080P 2 5624 25 ves 33 Line alternative HDTV 1080P 19201080 2812 25 148 5 33 Side by side Fully HDTV 1080P Top and Botiom Primary HDTV 1080P 31 33 716 33 75 29 976 30 00 74 18 74 25 34 Side by side half Secondary HDTV 1080P Frame packing Primary HDTV 1080P 32 67 432 67 5 29 976 30 00 148 35 148 5 34 Line alternative 1080P 33 33 716 33 75 29 976 30 00 148 35 148 5 34 Side by side Full HDTV 1080P Top and Botiom 1080P 2 00290 50 31 side by side halfy Secondary HDTV 1080P Top and Bottom Primary HDTV 1080P 35 67 43 67 5 59 94 60 148 35 148 50 16 Side by side half Secondary HDTV 1080P Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 10 LGE Internal Use Only 7 2 HDMI Input 1 3 No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 3D input proposed mode 1 1280 720 45 00 60 00 74 25 HDTV 720P 2D to 3D Side by
48. 5 sec When do pairing the remote should make pairing request IR signal 0x75 to TV When TV receive the IR signal it should send pairing request packet to the RF receiver After pairing success the remote should blink LED for some time and TV send pairing success packet back to TV When remote try to unpairing it doesn t care about state of receiver stand alone RF Unpairing Press BACK button and SMART button atthe same time for 5 sec Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 8 88 When remote try to unpairing it doesn t care about state of receiver stand alone After unpairing all pairing information should be erased After unpairing LED should be blinked for 3sec The remote just becomes to IR mode LGE Internal Use Only Introductions of 13Y WIFI built in ass y 1 Wi Fi built in Ass y feature 2 Wi Fi built in Ass y specification Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 9 88 WIFI Built in ass y feature Block diagram Wafer gt gt 6pin 1 25mm Antenna 2 4G 5G Antenna 2 4G 5G Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 10 88 WIFI Built in ass y Specification Frequency Band Draft
49. 80 33 75 60 00 74 25 HDTV 10801 4 1920 1080 28 125 50 00 74 25 HDTV 10801 5 19201080 2700 2400 74 25 10806 2010 3D Side by Side Half amp Bottom 6 19201080 2812 25 74 25 HDTV 1080P 7 19204080 3375 30 00 74 25 HDTV 1080P 8 19201080 6750 60 00 148 5 HDTV 1080P 19201080 56250 50 148 5 HDTV 1080P 7 9 3D Input mode No Side by Side Top amp Bottom Checker board E 2D to 3D 205830 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 12 LGE Internal Use Only ADJUSTMENT INSTRUCTION 1 Application Range This specification sheet is applied to all of the LED TV with LD33B chassis 2 Designation 1 Because this is not a hot chassis it is not necessary to use an isolation transformer However the use of isolation transformer will help protect test instrument 2 Adjustment must be done in the correct order 3 The adjustment must be performed in the circumstance of 25 C 5 C of temperature and 65 10 of relative humidity if there is no specific designation 4 The input voltage of the receiver must keep AC 100 240 V 50 60 Hz 5 The receiver must be operated for about 5 minutes prior to the adjustment when module is in the circumstance of over 15 In case of keeping module is in the circumstance of 0 C it should be placed in the circumstance of above 15 C for 2 hours In case of kee
50. 802 11n Radio 2 4 GHz 802 11g Radio 2 4 GHz 802 11b Radio 2 4 GHz USA FCC Canada IC Europe ETSI Japan STD T66 STD 33 502 11 Radio 5 GHz 5 150 5 250GHz 5 725 5 850GHz Operating Channels IEEE 802 11b g n compliant 11 channels US Canada 13 channels ETSI 14 channels Japan Transmit Power and Sensitivity TX Output Power Typical Meet emission standard 17 2 dBm llig 14 2 dBm 54Mbps Each chain lin 13 2 dBm Each chain Rx Sensitivity Typical 69dBm at HT20 m7 2 4GHz 87dBm at HT20 m0 2 4GHz 69dBm at HT20 m7 5 0GHz 87dBm at HT20 m0 5 0GHz Modulation DBPSK 1Mbps DQPSK 2Mbp CCK S 5 11Mbps 2462MHz Ch1 Ch11 2462MHz Ch1 Ch11 2472MHz Ch1 Ch13 2412 2484MHz Ch1 Ch14 BPSK 69 Mbps QPSK 12 16 64 QAM 48 54Mpb and above Current consumption SV DC Full load 430mA Operating Temperature 0 60 C ambient Storage Temperature 20 60 C ambient Humidity under 85 and must be non condensing Regulation and certification compliance available FCC T CERTIFIED WPS Wi Fi PROTECTED N oy 7 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 11 88 LGE Internal Use Only Widevine amp HDCP 2 0 amp NETFLX 1 Widevine 2 HDCP 2 0 amp NETFLIX 3 DTCP 4 Changed BOM 2012 12 08 LCD TV LCD TV R amp D Lab HW1 team Copyright 2013 LG
51. 9 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not required Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid state device heat sinks are correctly installed Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver pP o RI Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged eas ily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component dam age caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alter n
52. C Calibration R Cut G Cut B Cut pere Test Pattern Su Backlight P Gamma Reset Ext Input Adjust 20 Point WB Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 10 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 36 88 Standard Repair Process Detail Technical Manual Error 2 i i Established LCD TV symptom A Video error_No video Audio date 2012 12 06 Content Power Board voltage measuring method 9 5 Check the DC 24V 12V 3 5V Power on Inverter On off 3 5V PWM Dim 1 3 5V PWM Dim 2 GND GND 24V 24V GNO GNO 12V 12V 12V 24V GND GND GNO GNO GNO L DIMO VS L DIMO MOSI L DIMO SCLK Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 37 88 Standard Repair Process Detail Technical Manual Error z LCD TV symptom Video error Video error video lag stop praedi 2012 12 06 Content TUNER input signal strength checking method EE A6 lt ALL MODELS Network ID Code Rate Guard Interval Constellation FFT Mode Sy
53. CTION PING TEST Connect SET LAN port LAN Port SET PC 3 3 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program Number 12 12 2 2 3 3 2 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 Connect each other LAN Port Jack 3 Play Test F9 button and confirm OK Message 4 Remove LAN cable Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 3 4 Model name amp Serial number Download 3 4 1 Model name amp Serial number D L Press P ONLY key of service remote control Baud rate 115200 bps Connect RS 232C Signal to USB Cable to USB Write Serial number by use USB port Must check the serial number at Instart menu 3 4 2 Method amp 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 number is initialized Not always It 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 be
54. Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only Only for training and service purposes 9 PMIC amp Level Shift Bloc Diagram PANEL_VCC Boost Converter Buck 1 converter VCC 1 Buck 2 converter Vcore 1 HVdd Buck 3 converter HVdd ES Buck 4 converter VCC18 VCC18 SWN A VGL Positive Charge Pump Controller CTRLN Diode SWP Negative Charge Pump Controller TR CTRLP Diode 6 Ch Gamma Buffer DAC output 9 7 1 214 15 VCOM_N Vcom reference amp gain Wcom Loop Reset PMIC_RESET Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 10 USB WIFI M REMOTE UART USB DM P2 Seen SSES asv USB DP P2 USB DP1 aa 0 1043 7USB_OCD1 eel USB CTLI USB DM2 USB2 45V USB 2 USB DM wot DP P1 USB DP2 16242 USB_OCD2 ITCON12 USB CTL2 gt USB DM3 USB DM USB DP UM JUSB OCD3 ADIN2 SRV USB CTLS gt WIFI DM 1098 DP P3 WIFI DP quirx M_REMOTE_RX M_REMOTE_TX gt ADIN4 SRV RFModule RESET Motion Remote ToPcrmas 4 aS Receiver OPCTRLSO gt E SOC TX gt n T SOC RX 4Pin debugging wafer LGE 2122
55. DET gt fixing AC OFF POP noise 32 POLA ROW model 32 POLA ROW LPB s 3 5st drop time is very fast ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes SECRET LG ELECTRONICS Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes SCHEMETIC DIAGR mas wa SECRET THE IN N SYMB az scenic LGElectronics ELECTRONICS BLOLK 7 Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes SECRET 5 ELECTRONICS Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes B CAS SMART CARD INTERFACE SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes
56. Hz Reference HDMM RGB In the data of EDID bellows may be different by S W Input mode Product ID HEX EDID Table DDC Function 0001 0100 Analog 0001 0100 Digital Serial No Controlled on production line Month Year Controlled on production line ex Monthly 01 01 Year 2013 47 Model Name Hex LGTV Chassis MODEL NAME HEX LD33B 00 00 00 FC 00 4C 47 20 54 56 20 20 20 20 20 20 20 Transmission 5 20 or ING 2 Check the menu on in start APP History Ver 25682 Eye 5000 POL OB LGD_ALEF 92173 X Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes Checksum LG TV Changeable by total EDID data 91 92 62 3 10bit 8bit XvYcc HDMI1 E8 85 x HDMI2 EB 75 BC x HDMI3 EB 65 AC x Vendor Specific HDMI 1 Deep color module 10bit INPUT MODEL NAME HEX 78 03 0C 00 10 00 B8 2D 20 CO 01 4F FC 08 10 18 10 06 10 16 10 28 10 78 03 0C 00 20 00 BB 20 20 CO OE 01 4F FC 08 10 18 10 06 10 16 10 28 10 HDMIS 78 03 0C 00 30 00 BB 2D 20 CO OE 01 4F FC 08 10 18 10 06 10 16 10 28 10 2 None deep color module 8bit INPUT MODEL NAME HEX
57. North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz Igservice com Life s Good LED TV CHASSIS LD33B MODEL 47LA62 47LA62 z CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL P NO MFL67727114 1302 00 Printed in Korea CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS SPECIFICATI ara R 6 ADJUSTMENT INSTRUCTION cccscsssesssesesesetsssesesessseseseteneeeeeeseaeas 14 BLOCK DIAGRAM 21 EXPLODED VIEW iiics aa aAA AER aAa 22 SCHEMATIC CIRCUIT DIAGRAM 2 2 2 Copyright 2013 LG Electronics Inc All rights reserved 2 LGE Internal Use Only Only for training and service purposes SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE 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 Shock Fire or other Hazards Do not modify the original design without permission of manufacturer General Guidance An isolation Transformer should always be used during the servicing of a
58. P WAFER 1 8101 JK4600 DVB only spay _12C_SDAt audio AM g 513 RESET E 2 22 MUTE 5 1C3000 MICOM TUNER SIF WEE sues SIDE HP MUTE v ALO ADAC HP L ROUT MAIN 1 6100 HP_L ROUT_AMP ARO ADAC TPA6138A2PWR HEAD PHONE HP AMP JK3700 SPDIF OUT JK3602 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 7 HDMI DDC_SCL_1_SOC DDC_SDA_1_SOC HDMI LGE 2122 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes TMDS Link 8bits DDC_SCL_2 JACK DDC SDA 2 JACK TMDS Link 8bits TMDS Link 8bits DDC SCL 3 JACK TMDS Link or MHL Link o m 9 2 5 HDMI LGE Internal Use Only 8 Panel Interface Block Diagram PANEL 1 12V vec 2 5 m lo sg lt 5 5 5 lg P 50Pin X2 LIT 201 193 LVCOMRFB 5 EPI CH6 SLVWD SLVWD OLVWD 6INV GMA4 GMAS GAM7 GMA12 GMA14 GMA15
59. R2 DDR MAIN 1 5V DDR MAIN 1 5V 4 T Vout 0 765 1 R1 R2 SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes Renesas MICOM For Debug GP4 High MID Power SEQUENCE MICOM MODEL OPTION Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes MICOM MODEL Os sl xT P13Z INTPO P31 T103 TO03 INTP4 P75 KR5 INTP9 SCKO1 SCLO1 P74 KR4 INTP8 SI01 SDA01 P73 KR3 8 P72 KR2 S021 P71 KR1 S121 SDA21 P70 KRO SCK21 P30 INTP3 RTC1HZ SCK11 8C ELECTRON P12 P122 x2 Ex 45 43 IC3000 R5F100GEAFB MICOM_LEAD_Au LGE Internal Use Only
60. TERN S LEVEL SHIFTER BLOCK gt SECRET ELECTRONICS Copyright O 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes SECRET LG ELECTRONICS Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes _2GB HYNIX_EMMC TOSHIBA_EMMC_16GB m U 5 x H 2 Es Don t Connect Power At VDDI Just Interal LDO Capacitor TOSHIBA 8GB HYNIX EMMC 8GB ELECTRON Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes MODEL A NT FOR PROTECTION FR N ARDS WHEN SER SECRET amena eic pars i oseo zon EE BLG BOKO Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes USE Two serial TS Port for Japan JAPAN TUNER INTERFACE Function Ext_TS_CLK DEMOD_TSSYNC Ext_TS_Sync DEMOD_TSDATAO Ext Ts DO DEMOD_TSVAL Ext_Ts_VAL DEMOD_TSDATA1 EXT2_Ts_CLK DEMOD_TSDATA3 EXT2 TS Sync DEMOD 5 4 EXT2 TS DO DEMOD_TSDATA2 EXT2_TS_val
61. These parts are identified by in the Schematic Diagram and EXPLODED VIEW IL 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 manufacturer Set Stand Stand Base Body Copyright 2013 LG Electronics Inc All rights reserved 22 LGE Internal Use Only Only for training and service purposes EAX64797001 64872101 00 00000 000 ELECTRON Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ri on r i HE I i ES Ped a MES JACK SID I5 I PLAC JACK SIDE DATE SHEET MODEL BLOCK ELECTRONICS SECRET LGEectronics LGE Internal Use Only
62. ake 2 Securely crimp the leads of replacement component around notch at stake top Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed when ever this condition is encountered At IC Connections To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connec tions Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary 2 carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire and carefully crimp it around the IC pin Solder the IC connection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip
63. atively 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 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or expo sure of the assembly Use only a grounded tip soldering iron to solder or unsolder ES devices Use only an anti static type solder removal device Some sol der removal devices not classified as anti static can generate electrical charges sufficient to damage ES devices Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads elec trically shorted together by conductive foam aluminum foil or comparable conductive material Immediately before removing the protective material from the leads of a replacement ES device touch the protective mate rial to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or cir cuit and observe all other safety precautions
64. c All rights reserved LGE Internal Use Only Only for training and service purposes 54 88 Standard Repair Process Detail Technical Manual Error LCD TV symptom D VCOM Adjustment Established 2012 12 06 Content Sequence of the Vcom adjustment ERIT 9 A28 1 Case LCD module change T Con board change 2 Equipment W Service Remote controller 3 Adjust sequence W Press the adj key W select V COM W 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 Wi Push the OK key to store the value Then the message Saving is pop Press the exit key to finish V COM adjustment V Com Saving OK Press to save Press to save Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 55 88
65. chassis the reading must be infinite An other abnormality exists that must be corrected before the receiver is returned to the customer Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes Leakage Current Hot Check See below Figure Plug the AC cord directly into the AC outlet Do not use a line Isolation Transformer during this check Connect 1 5 10 watt resistor in parallel with 0 15 uF capacitor between a known good earth ground Water Pipe Conduit etc and the exposed metallic parts Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms volt or more sensitivity Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part Any voltage measured must not exceed 0 75 volt RMS which is corresponds to 0 5 mA In case any measurement is out of the limits specified there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer Leakage Current Hot Check circuit AC Volt meter lt gt Good Earth Ground such as WATER PIPE CONDUIT etc To Instrument s exposed METALLIC PARTS 0 15 uF 1 5 Kohm 10W When 25A is impressed between Earth and 2nd Ground for 1 second Resistance must be less than 0 10 Base on Adjustment standard LGE Internal Use Only SERVICING PRECAUTIONS CAUTION Before servicing receivers covered b
66. ck input signal Check technical information Fix information S W Version Check and fix external device cable Fix in accordance with technical information Revised date Input an Component DVI Optical ecognition erro Replace Main B D Replace Main B D Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 30 88 LGE Internal Use Only Standard Repair Process LCD TV Identify noise type Error E Noise 2012 12 06 symptom Circuit noise mechanical noise Revised date Replace PSU with LED driver gt Check location of noise Replace LED driver Check location of noise Mechanical noise is a natural phenomenon and apply the st level agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual description When the customer does not OR When the nose is severe replace the module For models with fix information upgrade the S W or provide the description X If there is a Tak Tak noise from the cabinet refer to the KMS fix information and then proceed as shown in the solution manual For models without any fix information provide the
67. ction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the compo nent lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil Closely inspect the solder area and remove any excess splashed solder with a small wire bristle brush a p 4 LGE Internal Use Only IC Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads are inserted and then bent flat against the cir cuit foil When holes are the slotted type the following technique should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined in paragraphs 5 and 6 above Removal Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal Replacement 1 Remove the defective transistor by clipping its
68. e LED should be OFF 4 8 Option selection per country 4 8 1 Overview Option selection is only done for models in Non EU 4 8 2 Method 1 Press ADJ key on the Adj R C then select Country Group Meun 2 Depending on destination select Country Group Code 04 or Country Group EU then on the lower Country option select US CA MX Selection is done using or gt 4 key 5 Tool Option selection Method Press ADJ key on the Adjustment remote control then select Tool option 6 Ship out mode check In stop After final inspection press IN STOP of the Adjustment remote control and check that the unit goes to Stand by mode Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 19 7 GND and Internal Pressure check 7 1 Method 1 GND amp Internal Pressure auto check preparation Check that Power cord is fully inserted to the SET If loose re insert 2 Perform GND amp Internal Pressure auto check Unit fully inserted Power cord Antenna cable and A V arrive to the auto check process Connect D terminal to AV JACK TESTER CONTROLLER GWS103 4 ON Perform GND TEST If NG Buzzer will sound to inform the operator I OK changeover to check automatically Remove CORD form AV JACK BOX Perform test If NG Buzzer will sound to inform the operator If OK Good lamp will lit up and the stopper will allow the pallet
69. en 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 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 43 88 Appendix Exchange EPI Cable or Main B D 2 Abnormal Power Section Abnormal Power Section Solder defect Short Crack L zc a Solder defect Short Crack Fuse Open Abnormal power section Abnormal Display GRADATION Noise GRADATION Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 44188 Appendix Exchange LPB LED driver Oo No Light Dim Light Dim Light Dim Light Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 45 88 Appendix Exchange the Module 1 Panel Mura Light leakage Panel Mura Light leakage Press damage Crosstalk Press damage Crosstalk Un repairable Cases In this case please exchange the module Press damage Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 46 88 Appendix Exchange the Module 2 Vertical Block ertical Bloc Source TAB IC Defect Source TAB IC Defect Source TAB IC Defect Horizontal Block Horizontal line
70. enerator Set top Box etc Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 24 88 Standard Repair Process Established e B Power error diede 2012 12 06 LCD TV symptom No power Revised date wr A17 DC Power on by pressing Power Key On Remote control Check Power LED Stand By Red Operating white Check Power cord was inserted properly Replace Power B D 29 A19 Normal N TERR L Y gt On P Y A4 E a N Replace Power B D Replace Main B D N Measure voltage of each output of Power B D Y Replace Main B D voltage N Replace Power B D Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 25 88 LGE Internal Use Only Standard Repair Process B Power error Established Error date 2012 12 06 LCD TV Off when on off while viewing power auto on off Revised date Check outlet wr A22 P i x 7 y Check A C lt Error Check Power Off Replace Main gt lt Normal eee Mode normal P v P Check for all 3 phase lt 3 em E ower
71. image light spot external device color error Vertical Horizontal bar residual image light spot Revised date Replace Module A8 gt A10 A11 IE Pius in n by input p Check external E y YN MON gt A28 External Inpu Screen device NS Screen ES 2 Component normal2 connection oe jormal RGB condition HDMI DVI N For LGD panel Y Replace B D Replace Request repair Ena P A12 module for external device For other panel Check Test patteri Pi External device screen error Color error Check screen condition by input N External Input External N Check S W Version lt gt Component lt Input gt Connect other external RGB Nerror device and cable Screen Replace HDMI DVI X gt Check normal operation of bd Main B D Y External Input Component Component RGB and HDMI DVI by o S W Upgrade Tr connecting Jig pattern Generator Set top Box etc Request repair for LN external device v error Connect other external N NA device and cable R screen Xx gt Check normal operation of External Input Component Main B D i Y gt HDMI RGB and HDMI DVI by DVI y connecting Jig pattern End G
72. low photo 3 Input the Factory model name ex 42LA690V ZA or Serial number like photo 4 Check the model name Instart menu Factory name displayed ex 42LA690V ZA 5 Check the Diagnostics DTV country only Buyer model displayed ex 42LA690V ZA 3 5 Cl Key checking method Check the Section 3 1 Check whether the key was downloaded or not at In Start menu Refer to below gt Check the Download to Cl Key value LGset 14 LGE Internal Use Only 3 5 1 Check the method of Key value 1 Check the method on Instart menu 2 Check the method of RS232C Command 1 Into the main ass y mode RS232 00 00 CMD 1 CMD 2 Data 0 A A 0 0 2 Check the key download for transmitted command RS232 00 10 4 Manual Adjustment ADC adjustment is not needed because of OTP Auto ADC adjustment 4 1 EDID DATA 4 1 1 3D EDID CMD 1 CMD2 Data 0 1 1 0 Result value Normally status for download OKx Abnormally status for download NGx o 3 5 2 Check the method of key value RS232 Into the main ass y mode RS232 aa 00 00 CMD 1 CMD2 Data 0 A A 0 0 2 Check the mothed of CI key by command RS232 ci 00 20 1 CMD2 Data 0 2 0 3 Result value 101 OK 1d1852d21c1ed5dcx L CI Key Value 3 6 WIFI MAC ADDRESS CHECK 1 Using RS232 Command H freq kHz V freq
73. m Digital COFDM QAM 64 QAM 1 2 2 5 2 3 3 4 5 6 256 1 2 2 5 2 3 3 4 5 6 gt DVB C Symbolrate 4 0Msymbols s to 7 2Msymbols s Modulation 160 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 Scart 1 Jack is Full scart and support ATV DTV OUT 5 Scart 1EA PAL SECAM hat AV 6 Video Input RCA 1EA PAL SECAM NTSC 4 System PAL SECAM NTSG Common port 7 Head phone out Antenna AV1 AV2 Component HDMI2 USB1 USB2 USB3 8 Component Input 1EA Med Hybrid Type HDMI DTV 9 HDMI Input 3EA HDMI2 DTV 1 3 HDMI3 DTV Lis DVI Audio 10 Audio Input 3EA Component AV2 LIR Input AV 11 SDPIF out 1EA SPDIF out 12 USB EMF DivX HD For SVC download JPEG DivX HD 13 Ethemet 1 Ethernet Connect Copyright 2013 LG Electronics Inc All rights reserved E Only for training and service purposes LGE Internal Use Only 5 Component Video Input Y PR No Resolution H freq kHz V freq Hz Pixel clock 1 720x480 15 73 60 00 SDTV DVD 480i 2 720x480 15 63 59 94 SDTV DVD 480i 3 720x480 3147 59 94 480p 4
74. mperature 1 Surrounding Temperature 25 5 C 2 Surrounding Humidity 20 80 4 2 2 Equipment 1 Color Analyzer CA 210 LED Module CH 14 2 Adjustment Computer During auto adj RS 232C protocol is needed 3 Adjustment Remote control 4 Video Signal Generator MSPG 925F 720p 216 Gray Model 217 Pattern 78 Only when internal pattern is not available Color Analyzer Matrix should be calibrated using CS 1000 Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 16 wb 00 20 Start wb 00 2f end Off set adj wb 00 ff End white balance auto adj Adj Map Applied Model LD33B Chassis ALL MODELS Adj liem Command Data Range Default lower caseASCII Hex Decimal CMDi CMD2 RGan 9 00 j h 00 CO j i 00 CO Cool Rout G Cut B Cut RGan a 00 co b 00 co i 00 CO ledium Rout G Cut B Cut d 00 co 00 f 00 co R Cut G Cut LGE Internal Use Only 4 2 5 Adj method 1 Auto adj method 1 Set TV in adj mode using POWER ON key 2 Zero calibrate probe then place it on the center of the Display 3 Connect Cable RS 232C to USB 4 Select mode in adj Program and begin adj 5 When adj is complete
75. nagement SOT23 5 Bluetooth Remote control Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes IR Emitter1 WMB8950 Wolfson Codec ADC IR Emitter2 2 2 Voice Scene IR Voice MIC Knowles 4 mode Only 20702 BROADCOM Bluetooth 4 0 UART Connector Bluetooth Receiver LGE Internal Use Only 4 Function list 2 Ic Manufacturer Function Voice Codec WM8950 Wolfson 16KHz Sampling of Audio data Voice MEMS Mic SPU0414HR5H Knowles Sensing Voice Motion Gyro Sensor Sensing angular velocity of X Y Z axis Sensor MPU 6150 Invensense 5750 Accelerometer Sensing device tilt Pitch amp Roll angle RF Antenna SDBTPTR3015 Partron Remocon RF Wirel aulis Xtal 24MHz Partron ireless communication Micom RF Micom BCM20733A2 Broadcom DC DC Converter TPS61097 Battery Boost up Regulator LDO1 uP0108NEC5 28 uPI RF Gyro Accelerometer Power Supply LDO2 uP0108NEC5 28 uPI Audio Codec Mic Power Supply Copyright 2013 LG Electronics Inc All rights reserved 7188 LGE Internal Use Only Only for training and service purposes 5 RF Pairing Un pairing Method Method Description RF Pairing Method1 If unpaired just press OK button If paired press OK button after unpairing Method 2 Repairing Press BACK button for
76. out normal Power A 1 gt Fix A C cord amp Outlet If Power Off mode is not displayed Z voltag mo Replace Main B D Please refer to the all cases which can be displayed on power off mode voltage Caution Check and fix exterior of Power B D Part EC Replace Power B D Status Power off 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 l POWEROFF RS232C Power off by RS232C POWEROFF RESREC Power off by Reservated Record POWEROFF RECEND Power off by End of Recording POWEROFF SWDOWN Power off by S W Download POWEROFF UNKNOWN Power off by unknown status except listed case Abnormal POWEROFF ABNORMALI1 Power off by abnormal status except CPU trouble POWEROFF CPUABNORMAL Power off by CPU Abnormal Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 26 88 LGE Internal Use Only Standard Repair Process LCD TV No audio Screen normal Established enor Audio error E uu symptom
77. p online streaming Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 14 88 3 DTCP The Digital Transmission Content Protection Specification defines a cryptogrphic protocol for protecting audio video entertainment content from unauthorized copying intercepting and tampering as it traverses digital transmission mechanisms such as a high performance serial bus that conforms to the IEEE 1394 1995 standard Only legitimate entertainment content delivered to a source device via another approved copy protection system such as the DVD Content Scrambling System will be protected by this protection system Three cryptographic Keys Authentication Key which is formed as a result of authentication and used to protect the exchange keys Exchage Key which is used to set and protect content streams eContent Key which is used to encrpt the content being exchanged Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 4 Changed BOM Model Info Platform Main IC Model Data Tool Optiont Tool Option Tool Option Tool Options Tool Options Tool Options Tool Option Commercial Too Option Function Model SIt Write CI Download Address ESN Download Marlin HDCP Tx HDCP Rx Ga 2567 1027 As Was
78. ping 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 09 there can some afterimage in the black level area 3 Automatic Adjustment 3 1 MAC address DIL Cl key D L Widevine key D L ESN D L HDCP14 20 D L Connect USB port Communication Prot connection 1 2 3 4 and 115200 Baudrate Mode check Online Only Check the test process DETECT gt MAC gt CI gt Widevine gt ESN gt HDCP 14 gt HDCP20 Printer Out MAC Address Label Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 13 3 2 LAN Inspection 3 2 1 Equipment amp Condition Each other connection to LAN Port of IP Hub and Jig d e do 3 2 2 LAN inspection solution LAN Port connection with PCB Setting automatic IP 1 92 168 123264 If you want manual connection enter Network connection at MENU Mode of TV Press Start connection key then Network will be connected Setting state confirmation If automatic setting is finished you confirm IP and MAC Address at in start menu mode LGE Internal Use Only 3 2 3 WIDEVINE key Inspection Confirm key input data at the START MENU Mode 3 3 LAN PORT INSPE
79. r Voltage Standard input voltage AC 100 240 V 50 60 Hz Standard Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjustment 4 Model General Specification No Item Specification Remarks 1 Market EU PAL Market 37 Countries DTV amp Analog Total 37 countries DTV 2 4 DVB T 29 countries Germany Netherland Switzerland Hungary Austria Slov enia Bulgaria France Spain Italy Belgium Luxemburg Greece Czech Croatia Turkey Moroco Ireland Latvia Estonia Lithuania Poland Portugal Romania Albania Bosnia Serbia Slovakia Beralus DTV MPEG2 4 DVB T2 8 countries UK Ireland Sweden Denmark Finland Norway Ukraine Kazakhstan Russia DTV 2 4 DVB C 37 countries Germany Netherland Switzerland 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 UK Sweden Denmark Finland Norway Ukraine Kazakhstan DTV MPEG2 4 DVB S 30 countries Germany Netherland Switzerland Hungary Austria Slovenia Bulgaria France Spain Italy Belgium Russia Luxemburg Greece Czech Croatia Turkey Moroco Ire
80. receiver whose chassis is not isolated from the AC power line Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks It will also protect the receiver and it s components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation If any fuse or Fusible Resistor in this TV receiver is blown replace it with the specified When replacing a high wattage resistor Oxide Metal Film Resistor over 1 W keep the resistor 10 mm away from PCB Keep wires away from high voltage or high temperature parts Before returning the receiver to the customer always perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals 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 plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the measured resistance should be between 1 and 5 2 When the exposed metal has no return path to the
81. se Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 22 88 LGE Internal Use Only Standard Repair Process A Video error Established TE 2012 12 06 Error LCD TV symptom A8 lt gt A10 A11 Check and Check color by input PS replace Link External Input 4 mY Color Cable COMPONENT error LVDS and RGB NZ contact HDMI DVI iti condition y Check error color input mode gt lt A12 N s error N T 2 RGBI s gt lt HDMI DVI X error 7 N s Color error gt device and Revised date Y gt A gt Colors Replace Main gt Color Ne Replace module error error X ji gt Check Ext mal device y N External Input external E Check Test patter C Component gt Pl devise and lt _ able gt Replace Main B D normal lt cable equest for external External device Y lt Cable gt gt Replace Main B D normal Check external cable Copyright 6 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 23 88 Standard Repair Process Error A Video error 2012 12 06 LCD TV symptom Vertical Horizontal bar residual
82. stem Bandwidth 800 MediaCor 801 SNY_SSU 802 Demo 800 Dolby D 5 1 0 Type 204 10 7 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 38 88 Standard Repair Process Detail Technical Manual date 1 Checking method for remote controller for adjustment tem 1 System 2 Version MTK000002430 OK Null NULL NUL Press the IN START with the remote controller for adjustment Error _ LCD TV symptom Video error Video error video lag stop praedi 2012 12 06 Content LCD TV Version checking method Revised A7 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 39 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error A Video error Vertical Horizontal bar residual Established LCD TV symptom image light spot daie AE Revised Content LCD TV connection diagram 1 Ou 29 lt ALL MODELS gt LNB ANTENNA CABLE IN 7 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 40 88 Standard Repair Process Detail Technical Manual wana symptom Video error Video error video lag stop Established 2012 12 06
83. using no signal or Full white pattern 4 2 6 Reference White balance Adj coordinate and color temperature Luminance 204 Gray Standard color coordinate and temperature using CS 1000 over 26 inch Coordinate Mode Temp Auv x y Cool 0 269 0 273 13000K 0 0000 Medium 0 285 0 203 9300K 0 0000 Warm 0 313 0 329 6500K 0 0000 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes zy Standard color coordinate and temperature using CA 210 CH 14 Coordinate Mode Temp x y Cool 0 269 0 002 0 273 0 002 13000 0 0000 Medium 0 285 0 002 0 293 0 002 9300 0 0000 Warm 0 313 0 002 0 329 0 002 6500K 0 0000 4 2 7 ALELF amp EDGE LED White balance table EDGE LED module change color coordinate because of aging time Apply under the color coordinate table for compensated aging time Normal Line LNSxxx LA6xxx 1 7 Aging Cool Medium Warm NC4 0 time x y x y x y Min 271 270 286 289 313 329 1 02 283 287 298 306 322 342 2 3 5 282 285 297 304 321 3 6 9 281 284 296 303 320 339 4 10 19 279 281 294 318 336 5 20 35 277 277 292 296 316 332 6 36 49 275 274 290 293 314 329 7
84. with the NFC and Miracast functions you can TV to Phone run the LG TV Remote app on the smartphone Phone to TV view the screen of the smartphone on the TV To end the connection touch the smartphone to the Tag On sticker again You can also disable the Miracast function on the smartphone Tag On Copyright 2013 LG Electronics Inc rights reserved 6 88 LGE Internal Use Only Only for training and service purposes Main PCB for Broadband Main TCON all in one 1 xxLA660S Zx Chassis LD33B o ToPSU 64797003 i LNBIC Block lt Only S model 1 LI 1 To module TE ee lt o Main processor DDR Memory eMMC Memory Micom for Key IR sensing WIFI BT Key IR Audio AMP Front Spk Wafer Level shifter Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only Only for training and service purposes 7 88 1 LGE2122 Block Diagram TIC S2 Without ATV An 1 R Cable gt TUNER 1 5 R 2 15 52 I DVB S 12C 4 MHL 1A 1 MHL 12C 4 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes X_TAL DDR3 1600 X 16 Slot 27MHz 512MB X 2EA PTS Y PTS A B IF Demod Analog Demod l Tuner i2 6 us
85. y this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS on page 3 of this publication NOTE If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precau tions Remember Safety First General Servicing Precautions 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other receiver assembly b Disconnecting or reconnecting any receiver electrical plug or other electrical connection c Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explo sion hazard Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltage by drawing an arc Do not spray chemicals on or near this receiver or any of its assemblies Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 10 by volume Acetone and 90 by volume isopropyl alcohol 90 9

LG Electronics 47LA62**-Z* Flat Panel Television User Manual

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