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LG Electronics 50PG6*** Flat Panel Television User Manual

1. Check external quest for external External device Y Established Error A Video error dais 2012 12 06 LCD TV symptom Color error Revised date A10 11 color by input d ooo Color Calor COMPONEN i MENT S error LVDS and error 7 Replace Main B D error gt Replace module E DU contact 4 condition N N Check enor color input mode S Ext rnal input pas Ext fnal device y 3 gt lt Component gt lt Cable gt Replace Main B D error bani normal device and gt lt iCable gt gt Replace Main B D cable normal Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 23188 Standard Repair Process LCD TV Error A Video error Established date 2012 12 06 symptom Vertical Horizontal bar residual image light spot external device color error Revised date Vertical Horizontal bar residual image light spot AB Ch External Input lor condition by input Replace A10 11 Y Check external AN M Check and Screen device Ay ox ane normal connection rapa Link My condition I 3 Replace Request repair module for external device
2. Na Waren 3D proposed mode Proposed m Secondary SDTV 480 d ades pens 1 jSesysicohal Secondary SDTV 480 40 40 Frame packing 5 480 2 1 atemative SDTV 480P 3 aso yas 3 8 480 m gt FTop ane Bottom SecondarySDTV mamine jim 23 side by side nah Secandary SDTV 480P 720480 Frame packing Secondan SOTV 480P t 2 Cine atemative SDTV 4808 g mans EIS CEN Z3 __ 808 Topand Sotom Secondary SDTV STEP 7 mas d 17 18 SecondarySDTV 576P 720578 Frame packing Secondary SDTV 576P gs had bel 17 18 Uine 576P g EEJ EJ E 17 18 Side by side ui STEP 5 FTop ane Bottom Secondany SDTV 5761 wem 21 side by sidnat Secondary SDTV 5761 720578 Frame pacing Sevondary SDTV 578 jam s 2 Fiala atematve SDTV 5760 12 T8828 EJ E 21 SiesysiderFul 576 FTop and Bottom Poma HOTV 720 nem s Tis 19 Side by side naiy PrmanjHOTV 720P Frame packing FrmanjHOTV 720P 1 jJ id 19 atemative HDTV 720 3E 37500 EJ I 19 Se ysiaelFul HDTV 720 orandi PrmanjHOTV 720 Top and Bott
3. 2 WE MIKS398 TS TS MTKS398 TS VAL CLTS VAL MTKS308 TS SYNC CLTS SYNC TS 10 7 CLTS DATA IND LTS DATAQ 7 _ rq 16201 panon LGE Internal Use Only 5 Video Audio In Block Diagram jesse Lemon soci IMPXP ADCINP DEMOD Parallel TS ERROR NALSYNC CLK gt Jack Side 1 1 SoC Side pg coup v v eves COMP1 al L COMP1_Pb_SOC soc gt COMPI AVI DV FON 1 1 covesovuovi sis soc I p tan 11 11 GE 2122 bg SC CVBS IN 1 8C CVBS IN SOC 1 1 NU 1 1 SC URLIN 1 1 scunmsoc gt pli um 11 Fg 11 i ee k I Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes LGE Internal Use Only 6 Audio Out Block Diagram quts ADAC TAS ADAC lAospATA 1AOLRCHI SC LIN SC ALIN aang JKae00 DX sci lopcraLa LGE 2122 Tuner ADAC DIVANNT OUT AUD MASTER DVB TARO
4. External device screen error Color error For LGD panel Replace Main B D For other panel normal Check screen condition by input External Input External Check SIW Version Component H gt lt Input gt Connect other external N RGB error device and cable Replace HDMI DVI X gt Check normal operation of Main B D Pe External Input Component p C mpon nt RGB and HDMI DVI by SIW Upgrade error connecting Jig pattern Generator Set top Box etc SERE external device RGB Y S error 7 Connect other external M device and cable NN screen X gt Check normal operation ot __p Sereen Replace NC 4 External Input Component Main B D HOM RGB and HDMI DVI by NA connecting Jig pattern a Generator 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 Error B Power error 2012 12 06 LCD TV symptom No power Revised date 17 A19 DC Power on Check Power LED Normal MRE Y Replace i by pressing Powe
5. wb 00 20 Start wb 00 2 Offset adj wb 00 ff End white balance auto adj Adj Map Applied Model LD338 Chassis ALL MODELS Command Dala Range Adhem omer caseaScin Hex Decima WiN MaX Ie 97 co o0 c CEE IG Cur can a fe o co fe o co Medium 258 Gur cu Gan ls NES Je on co o cs cur LGE Intemal 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 OK Sign check adj status pre mode Warm Medium Cool 6 Remove probe and RS 232C cable to complete ad WIB 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 RIC 7 White Balance then press the cursor to the right key gt When right is pressed 204 Gray internal pattern wi
6. Replace stand A28 Revised date Replace module MATRE Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 32 88 LGE Internal Use Only Standard Repair Process close Established Error G Network Error diio 2012 12 06 LCD TV symptom Exterior defect Revised date Check Wired ethernet cable connection Check Network status Check whether AP has a probelm or not Setting gt Network gt Networ Status Check Network connection gt 7 1 WiFi Y N Normal Normal Check svc Check Replace Signal Check AP status setting lt Bulletin Wired Wifi status Main B D Wired Cable sub Assy Check ethernet Port S W Upgrade x connection Try to new network connection with AP or internet match with AP and ether setting Normal WiFi AP Picture Wired ethernet I port I Normal T zx Picture close close Y Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 33 88 LGE Internal Use Only Standard Repair Process Established Error G Cl Competibility Error das 2012 12 06 LCD TV symptom Exterior defect Revised da
7. ae 3 2 2 LAN inspection solution lt LAN Part connection with PCB Setting automatic IP If you want manual connection enter Network connection at MENU Mode of TV Press Start connection key then Network will be connected E F 3 Setting state confirmation If automatic setting is finished you confirm IP and MAC Address at start menu mode LGE Intemal Use Only 3 2 3 WIDEVINE key Inspection Confirm key input data at the IN START MENU Mode 3 3 LAN PORT INSPECTION PING TEST Connect SET LAN port PC 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 IP Number 121222 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 e Phat Copyright 2013 LG Electronics Inc Al 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 DIL is using of scan equipm
8. STD T66 STD 33 2412 2484MH2 Ch1 Ch14 Full load 430m Operating Temperature 0 60 C ambient pusiste Storage Temperature 20 60 C ambient 51150 5250GBz 2 im aside Humidity under 85 and must be non condens Operating Channels Regulation and certification compliance available IEEE 802 11b gin compliant CE 11 channels US Canada ercc 13 channels ETSI e WiFi 14 channels Japan Power and Sens wi 2 TX Output Power Typical Meet emission standard qu Semana CERTIFIED lig 14 6 2 dBm bSAMbps Each chain 13 4 2 dBm Each chain ews Rx Sensitivity Typical G9dBm at HT20 m7 2 4GHz S7dBm at HT20 m0 2 4GHz 2 694 at HT20 m7 5 0GHz 87dBm at HT20 m0 5 0GHz Modulation Wen PROTECTED DBPSK IMbps Y CCK S 5 11Mbps Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only 11 88 Only for training and service purposes 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 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 ty
9. Identity noise type gt Jn NC Check location of noise ie sd iG c Error E Noise ironia 2012 12 06 Gide Circuit noise mechanical noise Revised date Replace PSU with LED driver Replace LED driver pes b chanical Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual Check location of noise When the nose is severe replace the module For models with fix information upgrade the S W provide the description If there is a 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 description Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 31 88 LGE Internal Use Only Standard Repair Process LCD TV Error F Exterior defect Established date 2012 12 06 symptom Zoom part with exterior damage Exterior defect Module damage Cabinet damage Remote ontrollep gt damage Stand dent Replace cabinet Replace remote controller
10. SMAW200 H24S Power on Inverter On off 3 5V PWM Dim 1 3 5V PWM Dim 2 GNO GNO GNO 12V 12V 24V GND GNO GND GNO GND L DIMO VS L DIMO MOSI L DIMO SCLK Checking order when there is no audio Check the contact condition of or 24V connector of Main Board 8 Measure the 24V input voltage supplied from Power Board pi suppl 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 0 Function error No response in remote controller Established 2515 42 06 LCD TV symptom _ key error date auci Revised Content Remote controller operation checking method date 7 lt ALL MODELS i GND 2 KEY1 3 KEY 6 LOGO LED R E 8 GND Checking order 1 2 Check IR cable condition between IR 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 Inc Al rights reserved LGE Internal Use Onl
11. L 20 D Demos 528 NORMAL pos pemon 30 sara ouens E SEN 11880 32800135 zE Hen 37 Cum mu eser 25 rp xd team 10 FE SYNC GMIN FEDENODTSVAL p FE DEMODI TS CLK FE DEMODI a ee isa RESET A mener ___ Ee Ancin Demon 3 EN DEMOD SS TAIS Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes une e900 LGE 2122 Apa SCL ARS SRV Artsiopcraci Ants opcraco DEMOD_TSSYNC DEMOD TSVALI Pio DEMOD TSCLK IDENOD soara SR gt ADCINP_DEMOD xar ADCINN_DEMOD Rasiei TSDATAD d cn SSS 45V CL ON i 5 CL 33 NORMAL 1 4 raison gum dz x1 iur NY are TS AD 4 cet Pem cez menan eo monan CLA 57 eee a ee reas cL DATA CLA ran 10 1026 33 LA pow sap TSDATAT PCM INPACK ect A REG PCM IROA
12. a penso 90 pas 31 sice by sidetnat SecondanjHDTV 1080P as 5054 60 48 3450 Pacer ory Sido sidonalt Secondan HDTV 1080P Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 10 LGE Intemal Use Only 7 2 Input 1 3 No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 3D input proposed mode 1280720 450 6000 74 25 HDTV720P 20 30 Side by Side hal 2 128070 37500 50 74 25 720 Top amp Bottom Single Frame Sequentia 3 1920900 3378 6000 74 25 10801 2 3D Side by Side hat 4 _ isz071080 28128 5000 7425 HDTV 7080 Top amp Bottom 5 1920100 2700 2400 74 25 1080P 20 to 3D Side by Side Hal 6 1920100 2812 25 74 25 DTV 10807 NN Edd 7 192010000 3575 3000 7425 HDTV 1080P 2D 16 3D Side by Skde half 1920400 ferso 6000 2D 1o 3D Side by Single Frame Sequential 9 19204080 5825 50 1485 1080 Row Interleaving Column Interleaving 7 3 RF Input 3D supported mode manually Resolution Proposed 3D input proposed mode 201030 10801 1 HD Side by Side Hat 7202 amp Bottom 576P 2 so 20030 7 4 RF Input 3D supported mode automatically No Signal input proposed mode Side
13. 2 POWER OF Y POWER POWER POWER POWER T1 Stable Count POWER 12 SDP Server Selection POWER_ 13 RF Remocon Test 14 Access Code 18 POWER_OFF_BY_UNKNOWN 19 POWER_OFF_BY_UNKNOWN 28 POWER OFF BY UNKNOWN 21 POWER OFF UNKNOWN XX AN 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 Error Established wan T sympiom C Audio error No audio Normal video ablished 2012 12 06 Content Checking method in menu when there is no audio A24 ALL MODELS Sound Out TV Speaker 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 Only for training and service purposes 52 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Ei s LCD TV gm C Audio error No audio Normal video Established 2912 12 06 Content Voltage and speaker checking method Revised cs when there is no audio date lt ALL MODELS 24 Pin Power Board Main Board
14. 3A 3B BADR 4 6 ASTRA 2D EUROBIRD 3 EUTELSAT W7 2 EXPRESS AM1 TURK 2A 3A INTERSAT10 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Intemal Use Only Tem Specs LI 1 PAL BG 2 PAL DK 3 4 SECAM L L DK BG 2 Broadcasting system 5 Model L V Z T2 only Model 6 DVB C 7 DVB T2 8 DVB S S2 DVB S Satellite 12 Analogue TV 3 coverage ES E2 to E12 E21 eio cary 81050 HYPER S21 10847 ENT Fia nera Ta vo V 182 Code Rate 2 2 3 56 18 1 28 6 T SOAM 2 23 94 86 78 gt DVB T2 Model L V Z T2 only Model vcard tonat Mei Ta Ve V 130 1712811128 19 258 Code sk a2 2 84 56 lrecehing sytem Upper Helene 60 1224 25 34 0 Digital COFDM QAM 64 QAM 1 2 2 5 2 3 3 4 5 6 256 QAM d 28 21 34 86 rove Pica Msgmbolls to 7 2Meyrballs Futon B CAM L8 QA 256 gt ove sise APS 2 lt ehsymbols DVES PSK 2 adhsymbels wr OVE mode 12 28 94 56 78 DVE Sz mode V 2 34 4 5 56 art Jacks Fu scar ond support ANIDTV OUT PETEN support DTV Auto AV deo input RGAGIEA PA SECAM NTSC 4 System PAL SECAM NTSC a
15. ADAC Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes AUD LRCH AUD LRCK 7 AUD SCK m 4P WAFER CAU SK 1 Audio E 2 T NTP7513 ca preaen n S AMP RESET N paN JwooreR 1 H 1C3000 ic6100 UROUT MAIN HP LROUT AMP TPAG138A2PWR ier Milit o Prone HP AMP 20700 sPoir our gt 203602 LGE Internal Use Only 7 HDMI LGE 2122 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes gt gt ARC ig IMDS Link abits DDC SCL 2 JACK DDC SDA 2 JACK ud Link abits scia DDcSCL3 ACK p SDAA DDC SDA34ACK TMDS Link TMDS Link or MHL Link L sv sv sus 77 LGE Internal Use Only 8 Panel Interface Block Diagram PANEL vec ev l ex1 nono 50PinX2 GMA4GMAS GAM7 GMBH2 GMA14 GMA15 2 2 2 Epi EPI EPI HI ai H2 uoo EPI HS al H6 OL VWO SWVO EV WO LVWO EPI LOCKS SOURCE pi Lock GUANGMASGAMIGMATZGMATIGNATS Copyright 2013 LG Electronics Inc Al rights reserved LGE Internal Use Only Only for training and service purposes 9 PMIC am
16. Inc rights reserved LGE internal Use Only Only for training and service purposes 6 88 4 Function list 2 Ic Manufacturer Functio 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 pn MPU 6150 Invensense nsor Accelerometer Sensing device tilt Pitch amp Roll angle RF Antenna SDBTPTR3015 Partron Remocon RF wid Xtal Barton ireless communication Micom RF BCM20733A2 Broadcom DC DC Converter TPS61097 Battery Boost up Regulator LDO uPO108NEC5 28 RF Gyro Accelerometer Power Supply LDO2 uPO108NEC5 28 Audio Codec Mic Power Supply Copyright 2013 LG Electronics Inc Al rights reserved zian LGE internat Use Only Only for training and service purposes 5 RF Pairing Un pairing Method Method Description RF Pairing Method If unpaired just press OK button If paired press OK button after unpairing Method 2 Repairing Press BACK button for 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
17. 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 2 Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead 3 Keep the soldering iron tip clean and well tinned 4 Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25 brush with a metal handle Do not use freon propelled spray an cleaners 5 Use the following unsoldering technique a Allow the soldering iron lip to reach normal temperature 500 F to 600 F b Heat the component lead until the solder melts 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 8 Use the following soldering technique a Allow the soldering iron lip to reach a normal temperature 600 F to 600 F b First hold the soldering iron tip and solder the strand against the component lead until the solder melts c Quickly move the soldering iron tip to the junction 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 d Closely inspect the solder area and remove any excess or splashed
18. Top amp 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 1280720 450 6000 7425 HDTV 720P 2 128070 37500 50 74 25 HDTV 720P 3 19201000 3375 6000 7425 HDTV 70801 4 28125 5000 7425 HDTV 10801 5 1920 1080 27 00 24 00 74 25 1080P 2D to 3D Side by Side Half Top amp Bottom 6 19209100 2812 25 74 25 HDTV 1080P 7 1920100 3378 3000 74 25 HDTV 1080 192000 6750 6000 1485 HDTV 1080P 1920900 6620 50 1485 HDTV 1080P 7 9 3D Input mode Single Frame Frame Sidebyside Checkerboard frame Pane 201030 2080 i Es Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 12 LGE Intemal Use Only ADJUSTMENT INSTRUCTION 1 Application Range This specification sheet is applied to all of the LED TV with 10328 chassis 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 8 The adjustment must
19. Video lag stop 7 LCD TV Version checking method AT 9 LCD TV connection diagram 10 Tuner Checking Part A9 Video error Color error Check Link Cable LVDS reconnection A10 10 32 37 42 47 55 condition 32 AUO 12 Adjustment Test pattern ADJ Key 12 13 LCD TV connection diagram 14 Video error Vertical Horizontal bar Check Link Cable LVDS reconnection A10 10 32 37 42 47 55 residual image light spot condition 11 32 AUO 15 Adjustment Test pattern ADJ Key 12 16 Exchange T Con Board 1 A 1 5 17 Exchange T Con Board 2 A 2 5 lt Appendix gt 18 Defected Type caused by T Con Exchange LED driver Board PSU 39 dier Bote Inverter Module Other PSU 19 Exchange Module itself 1 4 5 20 Exchange Module itself 2 A 5 5 Senso a T aT 18 88 Continue to the n t page Standard Repair Process Error A Video error Established date 2012 12 06 LCD TV symptom 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 No video Normal Y Normal audio audio Move to No video No audio Precaution 7 amp Repair Power Board or parts Replace Inverter voltage or module i N ty Repai
20. and service purposes 39 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error A Video error Vertical Horizontal bar residual Established 5445 45 06 LCD TV image light spot CL iu Content LCD TV connection diagram 1 dele AB lt ALL MODELS Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 40 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error Established LCD TV symptom A Video error Video error video lag stop ise 2012 12 06 Content TUNER checking part poo A9 lt ALL MODELS Copyright 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 T pum A Video error Color error Established 2012 12 06 Content Adjustment Test pattern ADJ Key EZ ADJUST Option 1 Tool Option2 2 Tool Option3 3 Tool Option4 4 Tool OptionS 5 Tool Option amp 6 Tool Option 7 Country Group 8 Area Option 9 ADC Calibration 10 White Balance 10 Point WB 12 20 Point WB 13 Test Pattern 14 SuD 15 V Com 16 P Gamma 17 Ext Input Adjust Test Pattem Patter Contrat Press to hide 000 Tet Pate ETE Pres
21. by 1 Frame Compatible 7 5 USB Input 3D supported mode manually No Resolution Vrea Hz Pixel clockMHz Proposed 3D input proposed mode 2D to 3D Side by Side Halt a noo ss fao Top amp Bottom Checkerboard ow interleaving Column Inteleaving Photo side by Side half Top amp Bottom 640350 720400 640 480 others 60480 1152 864 12801024 3D supported mode manually amp automatically Copyright 2013 LG Electronics Inc All rights reserved 11 Only for training and service purposes LGE Intemal Use Only 7 6 HDMI PC Input 3D supported mode manually No Resolution Pixel dock MHz SD input proposed mode Proposed 1 1024 768 48 36 60 65 20 to 3D Side by Skehan Top amp Bottom 2 13607768 ann 60 855 90 to 20 Bite by Side ha HoT 768P lop amp Bottom 2D to 3D Side by Side half amp Bottom Checker Board a 19204080 67 500 60 148 50 Single Frame Sequential HDTV 1080P Row interleaving Column interleaving 640350 720400 4 others E 201030 640480 800600 1152 864 7 7 DLNA Input 3D supported mode manually No Resolution V treq Hz Pixel ciock MHz Proposed 3D input proposed mode 1 19204080 33 75 30 74 25 2D to 3D Side by Side Half
22. color module 8bit VODENE 15 Colorimetry Data Block HDMI 1 The Model not supporting XvYcc INPUT MODEL NAME HEX HOMIT E305 00 00 HOM E308 00 00 HOMIS E305 00 00 LGE Intemal Use Only 4 1 2 2D EDID Reference RGB In the data of EDID bellows may be different by S W or Input mode 5 Product ID EDO Te DOC Fuon 0001 wo aor 3700 Dam Serial No Controlled on production line Month Year Controlled on production line 4 2 3 Equipment connection Color Analy Computer Pattern Generator 4 2 4 Adj Command Protocol Command Format gt Exec 55 JENA TEST Tes A oA ALA os Er LEN Number of Data Byte to be sent CMD Command VAL FOS Data value CS Checksum of sent data A Acknowledge Ex Send JA 00 DD Ack A_00_okDDX RS 232C Command used during auto adjustment Monthly 01 01 RE 232C COMMAND Year 2012 16 MD D DATA Explanton 3 Model Name Hex LGTV we oo J oo Begin White Balance Chasis MODEL ws o0 10 Gsimadustmenttntema white pater 10338 O00 OO FC OOAG 47 20 54 56 20 20202020 20 20 wb oo ir Gairagusiment completed wo on 25 otsetadustmoniiriemal wie pate
23. 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 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 2 Bend the two remaining leads perpendicular y to the circuit board 3 Observing diode polarity wrap each lead of the new diode around the correspanding lead on the circuit board 4 Securely crimp each connection and solder it 5 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 Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 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
24. purposes LGE Internal Use Only Standard Repair Process Error C Audio error Ernie 2012 12 06 LCD TV symptom Wrecked audio discontinuation noise Revised date abnormal audio discontinuation noise is same after Check input signal compared to No audio AN A25 Wye ked udiol Check and replace DicontnuaOnL j speaker and 4 Check input 3 audi connector sonal Gens Y External input cormaly Weed Sel E N 7 C Noise 2 9 Replace Main B D tor D TV Wrecked audio Discontinuation coe Replace Power B D toc Analog When RF signal is not received Request repair to external Wr cked alldio Replace ttn B D cablelANT provider Discontinuation Noise only m T for External Input 4 signal er Connect and check Korma Check and fix other external device audio Check and fix external device Copyright 2013 LG Electronics Inc Al rights reserved LGE Internal Use Only Only for training and service purposes 28 88 Standard Repair Process i Established nor D General Function Problem qus 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 A27 A27 Check RI
25. the auto check process Connect D terminal to AV JACK TESTER Auto CONTROLLER GWS103 4 ON Perform GND TEST NG Buzzer will sound to inform the operator If OK changeover to check automatically Remove CORD form AV JACK BOX Perform UP test NG Buzzer will sound to inform the operator If OK Good lamp will li up and the stopper will allow the pallet 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 lime 1 second TEST POINT GND TEST METAL GND Internal Pressure TEST POWER GND amp LIVE amp NEUTRAL LEAKAGE CURRENT At 0 5 mArms POWER CORD GND amp SIGNAL CABLE 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 8 RGB PC 1 KHz sine wave signal 0 7 Vrms No Tem Mis Max Unt Remark Audio practical 10 12 W q max Output LR Cistorion 10 108 vems Output I Clear Voice Of 2 Impedance LGE Intemal Use Only 9 USB S W Download Service only 1 Put the USB Slick to the USB socket 2 Automatically detecting update fle in USB Stick If your downloaded program version in USB Stick is Lower it didnt work But your downloaded version is Higher USB data is automatically detecting Download Version
26. zm 330 4 so ar iz scia pom 2c ss ic su iu 2c SCL6 Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 3 Power Block Diagram 3 5V 12V 24V MICOM VDD NE DOR 15V DDR DDR VOD 3A DDR VDDQ A ssy 1 23V 2A FORI EEPROR inca EEPROM 5V Normal TUNER SV TU 3A 3 pac vec dV Con MTKAVDD12 LVDS N Core 1 PANEL POWER LNB option 6A 3 3V 4 I 5VUSB 5 Hoceeeenon I gt 1c pepe 4A 9 USBZ Max 28 EEEN CAVDDS3 ARDC AVDD3V3 7400 PVDD1 INTP_7400 PVDD2 as e Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes MTKLAVDD3V3 MEMPLI IMTKLAVDD3V3 LVDS IMTKLAVDD33 578 AUDIO USB DVR Max 1 5A EARPHONE TUNER 33V TUJ LGE Internal Use Only 4 1 Block Diagram Eu 65010 en
27. 6 Content Power Board voltage measuring method Aes A5 Check the DC 24V 12V 3 5V n Power Board Main Board SMAW20 Power on Inverter On off 3 5V PWM Dim 1 3 5V PWM Dim 2 GNO 24 24 GND GND 12V 12V 24V GND GND GNO GNO GNO L DIMO VS L DIMO MOSI L DIM0 SCLK Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 37188 LGE Internal Use Only Standard Repair Process Detail Technical Manual E LCD TV sm A Video error Video error video lag stop Ene 2012 12 06 Content TUNER input signal strength checking method no A6 lt ALL MODELS n over 800 MediaCor om SNY SsU 802 Demo on Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 38 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual E i LCD TV symptom Video error Video error video lag stop Established 2912 12 06 Content LCD TV Version checking method liie nz Version Null NUL L 2 E c9 Lj 2 2 Press the IN START with the remote controller for adjustment Copyright 2013 LG Electronics Inc rights reserved Only for training
28. 6 88 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 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 Al rights reserved Only for training and service purposes 17 88 LGE Internal Use Only Contents of LCD TV Standard Repair Process Detail Technical Manual No Error symptom Content Page Remarks 1 Check LCD back light with naked eye Al 2 LED driver 24V measuring method 2 A Video error video Normal audio 3 Check White Balance value 4 Power Board voltage measuring method A4 6 TUNER input signal strength checking method 6 A Video error No video
29. 64 281 283 305 319 Over 120 265 263 2 0 282 304 318 LGE Intemal Use Only 4 3 Local g Function Check 2 When 3D OSD appear automatically then select OK key Step 1 Turn on TV 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 EIE Loca Dimming Demo LED 3 Don t wear a 3D Glasses check the picture like below 4 6 Wi Fi Test 4 4 Magic Motion Remote control test Step 1 Turn on TV Results are automatically marked in Instart OSD after Step 2 Select Network Connection option in Network Menu through the AP Magic Remocon Equipment on the line Step 3 Select Start Connection button in Network Connection E Step 4 If the system finds any AP like blow PIC it is working well 4 5 3D function test Patter Generator MSHG 600 MSPG 6100 Support 4 HDMI mode NO 872 pattern No 83 1 Please input 3D test pattern like below Copyright 2013 LG Electronics Inc All rights reserved 18 LGE Intemal Use Only Only for training and service purposes 4 7 LNB voltage and 22KHz tone check only for DVB SIS2 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 Ad Remote control to make LNB on 4 Chec
30. 8 to hide OSD Test Pate TE Pss e ta de 0S0 You can view 6 types of patterns using the ADJ Key Checking item 1 Defective pixel 2 Residualimage 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 42188 Appendix Exchange EPI Cable or Main B D 1 Lu Solder defect CNT Broken 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 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 d Solder defect Short Crack Fuse Open Abnormal power section 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 _ No Light Dim Light Dim Light Dim Light Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 45 88 LGE Internal Use Only Appendix Exchange the Module 1 Panel Mura Light leaka
31. C itself forman v Norma N fom EI formar Mena Normal E 2 Operation operating operating On Main B D Voltage Output signal Signal N N N EM AA 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 in room i Replace Main B D Power B D don t have problem It RIC operate Gigs Explain the customer operating Close cause is interference from light in room Replace RIC Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 29 88 Standard Repair Process Eror D Function error 2012 12 06 LCD TV symptom External device recognition error Revised date Check SER iut sona signal V Check and fix external device cable Check technical N _Ext inal information J chnic Component gt gt Fix information gt informatio keiini S W Version Y LU ci lt DVI Optical gt accordance Recognition eso with technical information Replace Main B D Replace Main B D Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 30 88 LGE Internal Use Only Standard Repair Process
32. ER Power off by SLEEP TIMER POWEROFF INSTOP Power off by INSTOP KEY POWEROFF AUTOOFF Power off by AUTO OFF Normal POWEROFF ONTIMER Power off by ON TIMER POWEROFF 52 2 Power off by RS232C POWEROFF RESREC Power off by Reservated Record POWEROFF Power off by End of Recording FOWEROFF SWDOWN Power off by S W Download POWEROFF_UNKNOWN Power off by unknown status except listed case POWEROFF_ABNORMALI Power off by abnormal status except CPU trouble Abnormal FpOWEROFF_CPUABNORMAL Power off by CPU Abnormal Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 26 88 LGE Internal Use Only Standard Repair Process Error C Audio error Earran 2012 12 06 LCD TV symptom No audio Normal video Revised date A24 A25 Check audio Check user N of Power Board menu gt gt No audio Screen normal Speaker off uid formal Y voltage M cancel OFF Replace Power Board and repair parts Check Speaker gt Qisconnectioh gt N Replace MAIN Board disconnection Y Replace Speaker 27188 Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service
33. High amp Power only mode Set is automatically D Show the message Do not unplug 4 Updating is starting rr Updating Software 6 Updating Completed The TV wil restart automatically 6 If your TV is turned on check your updated version and option explain the Tool option next stage if downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have DTVIATV 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 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 Intemal Use Only BLOCK DIAGRAM wx ae ae J dos ae 1 Bw Y 3 gOu SSAO NOS 00009 xon I zz k gt amp cen 3 anf gt E gt 1 zm 5179 59 smr zson 1 yo ooa 1 rds 1 1 E
34. Mode cutee Temp Aw x y Cool _ 0 269 0 002 0 273 0 002 13000 K 0 0000 Medium 0 285 0 002 0 293 0 002 9300 0 0000 Warm 0313 0002 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 LATO LAB ging Coo Warm X Ty x vy x Min ri 270 286 289 313 329 02 es 27 28 306 322 342 2 xs zm 25 97 sos 321 3 es 2m 296 3os 20 559 3 1018 279 281 254 300 st 336 s 2035 zrr 277 2 2 206 33 e 349 275 274 200 283 su 329 y sors 273 272 1 312 327 s somo 272 zr 287 200 325 s owrizo zri 270 286 289 310 325 Aging Chamber LAToox LAB Aging Medium War time X Ty x v x M zzi 270 285 285 a13 329 3 os 22 285 297 354 31 340 2 ero 278 so 253 29 sir 335 3 m20 zs 25 20 294 54 550 a 272 272 591 s 327 5 s14 269 269 284 288 308 325 e a50 268 zer 283 286 sor 322 z s10 257 266 282 285 306 321 e erms 266 2
35. North Latin America http faic lgservice com Europe Africa http leic Igservice com AsialOceania http biz lgservice com Life s Good LED TV CHASSIS LD33B MODEL 60LN57 601 57 2 CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL P NO MELG7727131 1305 REVOO Printed in Korea CONTENTS CONTENTS SAFETY PRECAUTIONS SERVICING PRECAUTIONS SPECIFICATION ADJUSTMENT INSTRUCTION BLOCK DIAGRAN EXPLODED VIEW SCHEMATIC CIRCUIT DIAGRAN Copyright 2013 LG Electronics Inc rights reserved E LGE Intemal 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 A 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 isolation Transformer should always be used during the servicing af a receiver whose chassis is not isolated from the power line Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks I
36. SI Misi Lo mid m 1 9 LGE Intemal Use Only 21 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes EXPLODED VIEW 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 XXLA71 Z XXLA69 66 Z XXLA64 62 61 Z XXLN57 Z 1 88 LGE Internal Use Only 1 New features 2 Main PCBs 3 Block Diagrams Map 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 2 88 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 Locksignal cascading and feedback to T Con Embedded Control Data Figure1 Topology Merits Better reliability on common noise No data skew and better EMI margin Table 1 Example of FHD 120Hz TV Fewer lines than mini LVDS FHD 1000 960Ch Slim PCB design 20H n ae 12 12 24 Bandwidth 0 4Gbps 168Gbps 1 68Gbps Copyright 2013 LG Electronics Inc rig
37. anual might be equipped 6 Do not apply AC power to this instrument and or any ofits electrical assemblies unless all solid state device heat sinks are correctly installed 7 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 8 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 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 caused by static by static electricity 1 Immediately before handling any semiconductor component Semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Aller natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purp
38. be performed in the circumstance of 25 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 keeping module is in the circumstance of below 20 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 key D L Widevine key D L ESN D L HDCP14 20 D L Connect USB part Communication Prot connection Com 1 2 3 4 and 115200 Baudrate Mode check Online Only Check the test process DETECT MAC gt Cl Widevine gt ESN gt HDCP14 gt HDCP20 Play Press Enter key Result Ready Test OK or NG Printer Out MAC Address Label Copyright 2013 LG Electronics Inc 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
39. ble o IR to Logo Assy 4Pin Cable Copyright 2013 LG Electronics Inc rights reserved LGE internal Use Oniy Only for training and service purposes 2 88 Introductions of 13Y RF ass y Magic Remote control Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes mom mpm 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 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 Al rights reserved LGE Internal Use Only Only for training and service purposes 4188 2 Remote Buttons 4 vs MR13 M4 Remote MR13 Remote Copyright 2013 LG Electronics Inc All rights reserved Only for training and serv
40. ch 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 patter 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the patter 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 Intemal Use Only SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 1 Application range This specification is applied to the LED TV used LD338 chassis 2 Requirement for Test Each part is tested as below without special appointment 1 Temperature 25 C 5 C 77 9 F CST 40 5C 2 Relative Humidity 65 10 3 Power 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 5 The receiver must be operated for about 20 minutes prior to the adjustment 4 Model General Specification 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specifica
41. 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 shouid 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 1 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 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 1 Remove the defective copper pattern with a sharp knife Remove at least 1 4 in
42. ent 2 Setting of scan equipment operated by Manufacturing Technology Group Serial number D L must be conformed when it is produced production line because serial number DIL is mandatory by D book 4 0 Manual Download Model Name and Serial Number Ifthe TV set is downloaded by or service man sometimes model name or serial number is initialized Not always IL is impossible to download by bar code scan so need Manual download 1 Press the Instart key of Adjustment remote control 2 Go to the menu 7 Model Number D L like below photo 3 Input the Factory model name ex 42LA690V ZA or Serial number like photo 4 Check the model 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 in 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 aa 00 00 1 2 Data 0 A A 0 0 2 Check the key download for transmitted command RS232 ci 00 10 CMD1 2 Data 0 c 1 0 3 Result value Normally status for download Abnormally status for d
43. er checking method in case of audio error D Function error No response in remote controller key error Remote controller operation checking method D VCOM Adjustment Copyright 2013 LG Electronics Inc 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 LCD TV symptom Video error No video Normal audio Established 2912 12 06 Revised Content Check White Balance value A4 EZ ADJUST 0 Tool Option 1 Tool Option2 2 Tool Option3 3 Tool Option4 4 Tool Option5 5 Tool Option6 6 Tool Option 7 Country Group 8 Area Option 9 ADC Calibration 12 20 Point WB 13 Test Pattern 14 Sub B C 15 V Com 16 P Gamma 17 Ext Input Adjust Entry method R Cut G Cut B Cut Test Pattern 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 Al rights reserved Only for training and service purposes 36 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual i i Established LCD TV symptom A Video error No video Audio date 2012 12 0
44. ge 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 Source TAB IC Defect Source TAB IC Defect Source TAB IC Defect j Horizontal Block Horizontal Block Horizontal line Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect 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 47188 Standard Repair Process Detail Technical Manual LCD TV s B Power error No power Established 2012 12 06 Content Check front display LED spes AT s Buttons creen Speakers Remote control sensor LG Logo Light Only LA64 LA66 Power Indicator Only LA62 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 48188 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error Established LCD TV symptom B Power error No power date 2012 12 06 Content Check power input voltage and ST BY 3 5V Tew ped 18 For 10 mode
45. hts reserved LGE internal Use Only Only for training and service purposes 3 88 EPI Interface mini LVDS vs EPI Comparison HF mini LVDS HF mini FHD 10bit 60Hz 120Hz 240Hz No of Signal 36 36 72 0 Connector 2 263 253 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 Connector 262 262 Better reliability on common noise No data skew Better EMI margin Lower cost Cable Connector Slim S PCB design 14mm 10mm helps slimmer TV Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes What to change LCM T con to S Driver IC HF mini vec FHD 120Hz 2 Bandwidth Capability FHD 120Hz 10Bit 594Mbps 36Lines 1 65Gbps 12Lines FHD 240Hz 10Bit 594Mbps 72Lines 1 25Gbps 32Lines LGE Internal Use Only EPI Interface mini LVDS vs EPI EPI Lock Topology 5 998 Protocol Multi Drop Point to Point Features Data rate 660Mbps Grobe FHD120 External clock Data rate 1 8Gbps Embedded clock Control Simple structure Fewer Lines 12 Embedded clock Standardiza
46. ice purposes BUTTON RF Unpaired RF Paired IR continuous ETC IR CODE repeat POWER 0x08 NONE Y 1R only BACK 0x28 0x8028 Y SMART xTc Ox807C Y 0007 0x8007 Y 0x06 0x8006 Y T 0x40 0x8040 Y 1 0x41 0x8041 Y Ox75 0x8044 Y Buttons VOICE OxDE 8 Y START 3D 0 800 Y OxDE 0x80DE Y 0x00 0x8000 Y CH 0x01 0x8001 Y VoL 0x02 0x8002 Y VoL 0x03 0x8003 Y MUTE 0x09 0 8009 Y AUTO WAKEUP x 0x800C VOICE START x 0x800A battens VOICE x 0x800D POINT_START x 0x803E POINT STOP x Ox808F sigh LGE internal Use Only 3 MR13 Block Diagram MPU 6180 ioc cht IR Emittert Gyro ACC m Invensense NU IR Emitter2 GF Voice Scene IR BCM20702M d BROADCOM Key Bluetooth 4 0 ey Button 5 4x4 SP Voice Serial Flash Antenna Parton WM8950 12C Wolfson Xtal Codec ADC MIC 20 MHz Knowles 4 mode Only UART Power Management x 2 DC DCBoos 2 8V LDO 28V LDO TITPS6109 1 5 2 10 5 28 anus SOT23 5 SC Bluetooth Remote control Bluetooth Receiver Copyright 2013 LG Electronics
47. ion Hefreq kHz Vefreq Hz Pixel clock MHz 1 640480 31469 31 5 59 94 60 SDTV 480P 2 720 480 31 469 31 5 59 94 60 SDTV 480 720 576 3128 50 SDTV 576P 720576 15 625 50 SDTV 576 amp 1280720 37 500 50 HDTV 720P amp 12807720 24 96745 59 94 60 HDTV 720P 7 1820 1080 337213375 59 94 60 HDTV 10801 8 1820 1080 28 128 5000 10801 p 1820 1080 2697 27 2397 24 1080P 10 19201080 25 1080P Ti 19201080 33716 3375 29 976 30 00 1080P 12 19201080 56 250 50 1080P 13 192071080 67 431675 59 94160 1080P 6 2 PC mode No Resolution Hetreg kH2 Vrea Hz Pixel clock MHz 1 640 x 350 70HZ 31 468 70 08 EGA 2 720 400 GT0Hz 31469 70 08 DOS 640 x 480 Q 60Hz 31 469 59 94 VESA VGA 800 x 600 60HZ 37 879 60 31 VESA SVGA 5 1024 x 768 60HZ 48363 60 00 VESA XGA 6 1152 x 864 60HZ 54 348 60 053 VESA 7 1280 x 1024 B0Hz 63 981 60 020 VESA SXGA 1360 x 768 60HZ 47712 60 015 9 1920 x 1080 60HZ 675 60 00 WUXGA Reduced Blanking 10 1920 1080 25 1080P tt 1920 1080 3371673375 29 976 30 00 1080P 12 1920 1080 56 250 50 1080P 13 1920 1080 67431675 59 94160 HDTV 1080P Copyright 2013 LG Electronics Inc All Only for training and service purposes rights reserved LGE Intemal Use Only 7 3D Mode 7 1 HDMI 1 4b 3D supported mode automatically
48. k 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 tone 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 kay on the Adj RIC 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 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 key of the Adjustment remote control and check that the unit goes to Stand by mode Copyright 2013 LG Electronics Inc 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 f loose re insert 2 Perform GND amp internal Pressure auto check Unit fully inserted Power cord Antenna cable and AV arrive to
49. ll be displayed 4 One of R Gain G Gain 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 pattern 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 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 5 Temp Co 0269 028 1000k 00000 Medum 0285 0283 9300K 00000 Warm 03 15 0329 500 0 0000 Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes afte Standard color coordinate and temperature using CA 210 CH 14
50. ls there is no voltage out for st by purpose When st by only 3 5V is normally on Check the DC 24V 12V 3 5V n Power Board Main Board Power on SMAW20 Inverter On off PWM Dim 1 PWM Dim 2 24 12V 24V GND GND L DIMO VS L DIMO MOSI L DIM0 SCLK Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 49 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error Established LCD TV symptom B Power error _No power date 2012 12 06 Content Checking method when power is ON ine A19 Check power on pin is high 24 Pin Power Board Main Board SMAW20 Power on 3 5V Inverter On off PWM Dim 1 3 5V PWM Dim 2 GNO 24 24 GND GND 12V 12V 24V GND GND GNO GNO GNO L DIMO VS L DIMO MOSI L DIM0 SCLK Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 50 88 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error Established LCD TV symptom Power error Off when on off whiling viewing 2012 12 06 Content POWER OFF MODE checking method A22 lt ALL MODELS 0 POWER AUTO 1 POWER
51. nna AVT AVZ Component WOMIT Meee phone sut HDMI2 USB1 USB2 USB3 component mpu e mI DTV 7 owes fimon owt Pc supper HON version 1 3 HDMI3 DTV 10 Audio Input 3EA Component AV2 UR Input 11 SDPIF out TEA SPDIF out 12 USB 1EA DivX HD For SVC download JPEG DivX HD 18 Correale Conc Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes LGE Intemal Use Only 5 Component Video Input Y PB PR Resolution FHfreq kHz Vefreq Hz Pixel clock 1 7205480 1573 6000 SDTV DVD 4801 2 720x480 1563 59 94 SDTV DVD 4801 3 720 480 31 47 59 94 480p 4 720 480 3150 60 00 480p 5 _ 720x576 15 625 50 00 SDTV 5761 720x576 3125 50 00 SDTV 576p 7 12801720 2500 5000 HDTV 720p 1280x720 496 5994 HDTV 720p 9 1280x720 2500 6000 HDTV 720p 10 1920 1080 3125 50 00 HDTV 10801 11 19201080 3375 6000 HDTV 10801 12 1920 1080 3372 59 94 HDTV 10801 13 1920 1080 56 250 50 HDTV 1080p 14 1920 1080 675 60 HDTV 1080p Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes LGE Intemal Use Only 6 HDMI Input 6 1 DTV mode No Resolut
52. ns 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 Disconnecling or reconnecting any receiver electrical plug other electrical connection 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 2 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 3 Do not spray chemicals on or near this receiver or any of its assemblies 4 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 80 99 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not required 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service m
53. om mary i 4 side by side Primary HDTV 720P 7 Frame packing Prmary HOTV 720P 1 pasce 4 une atemative HDTV 720P 38 3186748 EXE 3 Sae sidetFu HDTV 720P m Secondary HOTV 1080 18 5 side bysidethaty Primary HDTV 1080 7 7 DUE Frame packing Prmany HDTV 1080 20 6742 6750 5054 60 s EP anan am 5 sysisaFul HDTV 1080 FTop and Bottom Secondary HDTV 108017 2 peus pm piss 70 side by sidnat PamanyHDTV 10801 Frame packing Primary HDTV 1080 jan 70 HDTV 28328 E Lx EMEC 10801 7 7 Topand Botiom Pamary HDTV 1080P 2 pem 32 siocysidotnal Pian HDTV 1080P ar Frame packing Primary HDTV 1080P 26 nm 2397 24 Frame packing a 2697 27 7387 24 ESTE 32 Sueb Fu 1080P Tapand Botiom SecondaryHDTV 10 3 sie by sidenat Secondan HDTV 1080P Frame packing Secondary HOTV 1080P a gea gs Mas 33 anemative HDTV 1080P i209 25 TES HDTV 1080P Primary HDTV T0809 IAO Side by siethal Secondary HOTV 1080P F F Frame packing PimanyHDTV 1080P 3 674321575 2097613000 148351485 Frame packing anemy 2097673000 148361485 HDTV 1080 Topand Primary HDTV 1080P
54. opying 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 up and protect content streams Content 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 ode Data Tool Opin Tael option options ool options Tovi Opine Tool option Commercial Too Opin Modeysn wite As Was Bjorn erai cea Country Group country Area code or Option 152 yas ches smart Tv io 88 98 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes Current Too onions Es country croup CEN Too option cout T one es pm EE Tan T ONN 29 OChanged Separate HDCP check box HDCP 2 0 Tx HDCP 2 0 Rx HDCP 1 4 Rx LGE Internal Use Only 1
55. or 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 K 10 watt resistor in parallel with a 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 ohmsivolt 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 itis returned to the customer Leakage Current Hot Check circuit AC Volt meter g Cy cotta sound pesi commune bien Fon Mot dw t 15 Koh oW When 25Ais impressed between Earth and 2nd Ground for 1 second Resistance must be less than 0 1 0 Base on Adjustment standard LGE Intemal Use Only SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by 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 precautio
56. oses 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 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 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 5 Do not use freon propelled chemicals These can generale electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device fram its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads elec rically shorted together by conductive foam aluminum foil or comparable conductive material 7 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 8 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 General
57. ownload NGx 3 5 2 Check the method of 1 Into the main ass y mode RS232 aa 00 00 2 Data 0 A CI key value RS232 4 Manual Adjustment ADC adjustment is not needed because of OTP Auto ADC adjustment 4 1 EDID DATA 4 1 1 3D EDID Reference HDMIt HDMM RGB In the data of EDID bellows may be different by S W 2 Check the of CI key by command ite dais 95232 ci 00 20 2 Data EDD Table B50 c 1 2 E 200 Aral al cont Eg Dial Serial No Controlled on production line Key Value Month Year Controlled on production line 3 6 WIFI MAC ADDRESS CHECK 1 Using RS232 Command Monthly 01 01 Year 2013 4T Model Name Hex LGTV Chassis NOBEL NAMEHEX HetreatkHe Vetreq H2 on 00 00 Fe o0 4C 47 20 54 56 A20 20 20 20 20 2020 Transmission ANUMISet DINZOKCA IOK or ING Checksum LG TV Changeable by total EDID data bil A A 2 Check the menu on in start Eom E ue mone x 75 x E 85 AG x 0 Vendor Specific HDMI Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 1 Deep color module 10bit MODEL NAVEEN 2 None deep
58. p Level S PANEL VCC Bloc Diagram Boost Converter Buck 1 converter VCC Buck 2 converter Vcore Buck 3 converter HVdd Buck 4 converter VCC18 Positive Charge Pump Controller Negative Charge Pump Controller 6 Ch Gamma Buffer DAC output Vcom reference amp gain S VCOM Reset Vcore 18 SWN CTRLN swp ICTRLP aisi 12 14 15 VCOM IVCOM LOOP PMIC Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes LGE Internal Use Only 10 USB WIFI M REMOTE UART REMOTE REMOTE RFModule RESET Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes Interconnection 1 47LA660S ZA PCBs 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 WiFi 6Pin 8Pin Cable SPK Cable Copyright 2013 LG Electronics Inc rights reserved LGE Internal Use Only Only for training and service purposes 1 88 Interconnection 2 47LA660S ZA PCBs Cables e IR to Local Key 3Pin Ca
59. pically Australian Bigpond Live and North American CinemaNow Furthermore because the future will be the spread of CP widevine key download for the global model should be 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 a Y HDCP High bandwidth Digital Content Protection i 1 Protect high value digital motion pictures television programs and 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 amp online streaming Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 14 88 3 DTCP DTCP The Digital Transmission Content Protection Specification defines a cryptogrphic protocol for protecting audio video entertainment content from unauthorized c
60. r Checksum LG TV Changeable by total EDID data EE EE Ni oF az es End White Balance adjustment OMIT 18 x o intemalpattem disappears 45 05 HOM as F5 Ex wb 0000 gt Begin white balance auto adj wb 00 10 gt Gain adi P Vendor Specific HDMI ja00f gt Adj data INPUT MODEL NAMENE jb 00 co 67 03 0C 00 10 00 80 20 570306 002000 8020 HOMIS 7 03 0C 00 30 00 8020 wb 00 1f Gain adj completed 4 2 White Balance Adjustment 4 2 4 Overview WIB adj Objective amp How it works 1 Objective To reduce each Panel s W B deviation 2 How it works When RIG B gain in 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 RIGB is fixed at 192 and the other two is lowered to find the desired value Adjustment condition normal temperature 1 Surrounding Temperature 25 C 5 C 2 Surrounding Humidity 20 80 4 22 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 2013 LG Electronics Inc rights reserved Only for training and service purposes 16
61. r Key I 5 Power Power LED On EA aca jac operation RCRD Stand By Red ny A Operating white Check Power cord Replace Main B D was inserted properly AS N Measure voltage each output of Power B D 4 X Y Normals Y Replace Main B D voltage 5 voltage Yn E A A Replace Power B D N Replace Power Copyright 2013 LG Electronics Inc All rights reserved LGE Internal Use Only Only for training and service purposes 25 88 Standard Repair Process Established Error B Power error dais 2012 12 06 LCD TV symptom Off when on off while viewing power auto on off Revised date Check A22 d N Check Power Off CPU Check ACC cord gt lt Error oe Replace Main B D Check for all3 phase Y Abnorm t Replace Power B D Fix AIC cord amp Outlet and check each 3 phase out 1 If Power Off mode is not displayed Please refer to the all cases which can be displayed on power off mode Check Power B D voltage 5 Caution Check and fix exterior of Power BID Part Y gt voltage Replace Power B D Replace Main B D Status Power off List Explanation POWEROFF REMOTEKEY Power off by REMOTE CONTROL FOWEROFF OFFTIMER Power off by OFF TIMER POWEROFF SLEEPTIM
62. r Power Board or parts 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 Error LCD TV A Video error Established date 2012 12 06 symptom No video No audio Revised date 4 ____ ETTT No Video Hom 5 face audio voltage MAIN B D j mO Replace Power Board and repair pans Copyright 2013 LG Electronics Inc Al rights reserved LGE eral Use Oriy Only for training and service purposes 20 88 Standard Repair Process A Picture Problem D eese 2012 12 06 LCD TV symptom Picture broken Freezing Revised date e By using Digital signal level meter By using Diagnostics menu OSD Menu Set up Support Signal Test Signal strength Normal over 50 Signal Quality Normal over 50 Check RF Signal level Check whether other equipments have problem or not Signal By connecting RF Cable at other equipment gnai DVD Player Set Top Box Different maker TV etc AT Check RF Cable Connection Normal Y Check svc 1 Reconnection Picture Version Bulletin 2 Install Booster i Normal Contact with signal distribu
63. s Inc All rights reserved LGE Internal Use Only 6 88 Only for training and service purposes Main PCB for Broadband Main TCON all in one 5 model LNB IC Block Only S model To module o Main processor DDR Memory eMMC Memory Micom for Key IR sensing WIFI BT PMIC Key IR o Audio AMP Front Spk o EPI Wafer o Level shifter Copyright 2013 LG Electronics Inc rights reserved LGE internal Use Oniy Only for training and service purposes 7188 1 LGE2122 Block Diagram TICIS2 Without Au 1 Cable TUNER ICA DVB S Basma DVB S 12C 4 MHL 1A 254 Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 1 TUNER 1 52 1 1 CI Slot 1 Ps 1 1E 9 1 Tuner 126 6 T Hoo 25 2 1 0 noms B R SCART E eg B a Dense Ansiog Demod Ti SYSTEM EEPROM Ps dom 256Kb USB eati 16Kb ws x T Pm Y LeveL LGE 2122 262 sop 28 Out Audio uci NTP7513 n eine gt c RENESAS R5F1000G X TAL 32 768KHz LGE Internal Use Only 2 LGE 2122 I2C Block Diagram 13 37 Normal IC105 3 5V_ST 4 LGE 2122
64. solder with a small wire bristle brush LGE Intemal Use Only IC RemovelReplacement 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 outlined in paragraphs 5 and 6 above Removal 1 Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iran tip as the solder melts 2 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 foll pad and solder it 3 Clean the soldered areas with a small wire bristle brush Itis not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal Replacement 1 Remove the defective transistor by clipping its leads as close possible to the component body 2 Bend into a U shape the end of each of three leads remain ing on the circuit board 3 Bend into a U shape the replacement transistor leads 4 Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long
65. t will also protect the receiver and it s components from being damaged by accidental shorts of the circultry 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 metalli 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 electrical jumper across the two AC plug prongs Place the 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 retum path to the chassis the measured resistance should be between 1 MQ and 5 2 When the exposed metal has no return path to the chassis the reading must be infinite other abnormality exists that must be corrected before the receiver is returned to the customer Copyright 2013 LG Electronics Inc rights reserved Only f
66. te Check defect CI slot pin Check status Check it s worked Cl 1 2 or 1 3 Setting gt Antenna gt information _ Read Check status of Cl Key inthe isthere Y Check svc N N Check Replace Information In start menu key CAM SIW Bulletin Wired Wifi status Main B D Version Cable sub Assy N N i CAM S W Upgrade By OTA Check damage of CI slot pin Ra place i Or damage of CI CAM Main B D X Or Normal Download Picture Cl Key Old version of Cl 1 2 CAM is not worked Check SVC Bulletin at the TV that is supported CI 1 3 Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 34 88 LGE Internal Use Only Contents of 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 ST BY 3 5V Checking method when power is ON POWER BOARD voltage measuring method B Power error Off when on off while viewing POWER OFF MODE checking method B Power error Off when on off while viewing POWER BOARD PIN voltage checking method C Audio error No audio Normal video Checking method in menu when there is no audio Voltage and speaker checking method when there is no audio C Audio error Wrecked audio discontinuation Voltage and speak
67. tion EMC CE IEC No Tiem Specification Remarks Market EU PAL Market 37 Countries DTV amp Analog Total 37 countries DTV MPEG2 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 12 8 countries Uk lreland Sweden Denmark Finland Norway Ukraine Kazakhstan Russia DTV MPEG2 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 Slovakla 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 land Latvia Estonia Lithuania Poland Portugal Romania Albania Bosnia Serbia Slovakia Beralus Supported satellite 22 satellites HISPASAT 1C 1D 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 1LIHIM KR ASTRA
68. tion 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 Al rights reserved Only for training and service purposes 5 88 4bit delimiter LGE Internal Use Only 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 tag BAM E g Q From Smart phone m to TV E A 8 phone close to Tag Player choose b From TV to Smart phone Tag On Touch the smartphone to the Tag On sticker Using an LG smartphone with the and Miracast functions you can TV to Phone run the LG TV Remote on the smartphone Phone to view tne screen of ine smartphone on the Tv end the connection touch the smartphone to the Tag On sticker You can also disable the Miracast function on the smartphone Tag On Copyright 2013 LG Electronic
69. tor Picture broadcaster Cable or Air Y Close TY Normal Picture N Use Signal Test Check Signal status Normal Picture Check Tuner soldering Replace Main B D Y Close Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 21 88 LGE Internal Use Only or broadcaster Cable or Air Normal Picture Close Standard Repair Process A Picture Probl DVB S S2 Eet blienod Error Picture Problem dais 2012 12 06 LCD TV symptom Tuning fail Picture broken Freezing Revised date AG 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 Check satellite setting AT Normal Normal svc Check Replace 2 2 Signal ener setting SIW Version Bulletin Tuner soldering Main B D 5 DiSEqC motor etc SIW Upgrade s i Contact with Change satellite setting signal distributor match with installed ANT Normal Picture Copyright 2013 LG Electronics Inc Al rights reserved Only for training and service purposes 22 88 LGE Internal Use Only Standard Repair Process
70. 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 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 rights reserved LGE internal Use Only Only for training and service purposes 9 88 WIFI Built in ass y feature Block diagram DCDC 12V EUP3010 Spin 1 25mm USB DP DN Crystal 20MHz Copyright 2013 LG Electronics Inc rights reserved Only for training and service purposes 10 88 USB interface LGE Internal Use Only WIFI Built in ass y Specification v Frequency Band Draft 802 11n Radio 2 4 GHz 502 118 Radio 2 4 GHz 802 11b Radio 2 4 GHz BPSK 69 Mbps QPSKi 12 1SMbps 16 QAM 24Mbps USA FCC 2412 2462 2 Ch1 Ch11 G4 QAM 48 54Mpb and above Canada 1 2412 2462MHz Ch1 Ch11 Europe ETSI 2412 2472 2 Ch1 Ch13 Current consumption 5V Japan
71. y Only for training and service purposes 54188 Standard Repair Process Detail Technical Manual LCD TV cm D VCOM Adjustment Established 2912 12 06 Content Sequence of the Vcom adjustment A28 1 Case LCD module change W T Con board change 2 Equipment Service Remote controller 3 Adjust sequence W Press the adj key W select V COM 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 OK is pop Press the exit key to finish V COM adjustment Press to save V Com Saving OK Press to save Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 55 88 LGE Internal Use Only

LG Electronics 50PG6*** Flat Panel Television User Manual

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