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LED TV SERVICE MANUAL

1. 13301 8PG121SN1D TX1 Fer SIL1292CNUC gt D1 _KDMI4_MBL BODY_SHIELD 5V_MHL D1 _HDMI4_MHL EC C3321 o 1uF 13 12v _HDMI4_MAL ne 16v X BLM18PG121SN1D CBUS HPD 10K D2 _HDMI4_MHL 7 i VDD5_IN HDMI_HPD_4_MHL E D s es 5V_MBLA se o R3358 L E 4 7K OPT DDC DATA Ke a Oj H A H io DDC_DATA R3308 o c331 z R3308 10 SE BEBE a H A N H N i R3309 100 gt Ol Ha A 7 ol ell PH ojo a R3342 o o ae min Si a SOC_RX ola ala gt 5V_MHL OPT E T oO CEC REMOTE o Di 336 e ck _xpm14_sack e 10K HDMI_DET E HD Ck _HDM14_JACK a S gt D0 _HDM14_JACK a E 3 5V_ST z 2 04 NXP 5 e MHL_DET LE po _apmra_gack aL D1 _HDM14_JACK UU E z 3 a amp B D1 _HDMI4_JACK 9 re v v LD D2 HDMI 4_JACK 2 A _DET MHL_OCP cn 2 _HDMIA_JACK 2 SECH mo MMBT3904 NXP E i CD_SENCE Current Limit usus UI BDMIS 3312 10uF 10v 5V_MHL lt I MHL_DET 5 E s R3338 MHL_OCP 5V_HDMI_3_JACK 10K Fee vA3310 PS SIDE ADLC 5S 02 015 SIDE opt ik a 1 DDC_SCL_MHL A3304 30V eee e 56 02 015 DDC_SCL_4_JACK Keep ie BAT54_SUZHO Ben e D3304 L ERNAL_EDID 5V_MHL le SHIELD Ge rene 93309 S Zu MMBT3904 NXP BERT
2. RK OF THE SCHEMETIC Ce ELECTRONICS BLOLK cor one sz EHEET Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only PROM LPB amp PSU HDMI LEAKAGE Workaround in MTK A2 A0 Default with HDMI_LEAKAGE A 3 3V_NORMAL 12408 BLM185G121TN1D R2401 10K H2452 3 3V_NORMAL R2426 3 L DIM_OUT R2425 ev R2459 sa 12402 i ers2igi21 3 L DIMO_scLk DO MM L DIM0_SCLK L DIM_OUT R2458 PWR VDD3V3_HDMI L DIMO_Mos1 L_ gt VWW _1_ L DIMO_MOSI_PWR L DIM_OUT R2456 L DIMO_VS L DIMO_VS_PWR 02406 MMBT3904 NXP L DIMO_MOSI_PWR de L DIMO_VS d WR L DIMO_sCLK L D LK_PWR aL 5V_Normal Sr A 5V_NORMAL P_DET_BOTH_12_24v 1C2404 R2411 1 iiion RT8289GSP EP GND EI o a e 3 54 1 5K DET_BO v c2 a o o EI R2410 roe p_DET_BOT 24v R 2 ees lu a oa R RECH n d A BSPET_BOTH 12024 3 KR T RESET ee RK 12407 N A 7 2418 E ov 4 7uH 5 E 1 100 re R2410 2 Ww P_DET_BOTH_12_24V 8 _DET_BOTH_12_3 5V BEER SE i Ok GE E 1 PUDET BOTH AE ASN CC GND
3. FE_LNA_Ctr11 FE_LNA_Ctr12 TUNER MULTI OPTION DVB_H NIM_H TU6400 1 TDSS G501D B GND seperation for ASIS tuner x HE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved Only or training and service purposes SHIELD 3 3V_NORMAL GND_A SHIELD TU SHIELD Lo ELECTRONICS TU_GND_A ct 30 31 32 33 34 35 20 E 21 22 23 24 25 DE MOD1_TS_DATA 0 MODEL DATE BLOCK SHEET LGE Internal Use Only ww ww emm emm emm emm emm emm emm emm emm emm emm emm Global F E Option Name te SED 2 Tuner Name TDS S TDS Q 3 Country Name T T2 S2 KR US BR Example of Option name TU_O_T2 apply TDSQ type tuner and T2 country TU_M W apply TDSM amp TDSW Type Tuner 13 Tuner Type for Global TDS S G501D T C Half NIM Horizontal Type TDS 0 G501D T C S2 Combo Horizontal type TDS 0 G601D T2 C S2 Combo Horizontal Type TDS Q G651D T2 C S2 Combo Vertical Type TDS M C601D China NIM with Isolater Type TDS W J551F Japan Dual NIM
4. Close to the tuner MODEL DATE BLOCK DUT LGE Internal Use Only emm emm a emm emm emm em em em em em em em em emm emm em em em em em om emm emm emm em em em emm ewe em em eg 51Pin LVDS OUTPUT Connector 41Pin LVDS OUTPUT Connector J PWM_DIM1 TXA2P TXACLKN TXACLKP TXBCLKN TXBCLKP XDCLKN XDCLKP x El em a a a emm em em em em em emm em emm em em emm em em emm em em om em em em em em em emm em em em em emm em em emm em emm em emm em emm em emm em THE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET MODEL ops aen sen DATE LG ELECTRONICS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE N SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only BLOCK SHEET THE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMET
5. AT Remark Inspect in Power Only Mode and check SW version in a master equipment Cell Line 5 8 Ship out mode check In stop After final inspection press In Stop key of the Adj R C and check that the unit goes to Stand by mode LGE Internal Use Only 6 AUDIO output check 6 1 Audio input condition 1 RF input Mono 1KHz sine wave signal 100 Modulation 2 CVBS Component 1KHz sine wave signal 0 4Vrms 3 RGB PC 1KHz sine wave signal 0 7Vrms 6 2 Specification No Item Min Typ Max Unit Remark 1 Audio 9 0 10 0 12 0 W 1 Measurement practical 8 5 89 9 9 Vrms condition max Output EQ AVL Clear L R Voice Off Distor 2 Speaker 80 tion 10 Impedance max Output 7 GND and HI POT Test 7 1 GND amp HI POT auto check preparation 1 Check the POWER CABLE and SIGNAL CABE insertion condition 7 2 GND amp HI POT auto check 1 Pallet moves in the station POWER CORD AV CORD is tightly inserted 2 Connect the AV JACK Tester 3 Controller GWS103 4 on 4 GND Test Auto If Test is failed Buzzer operates If Test is passed execute next process Hi pot test Remove A V CORD from A V JACK BOX 5 HI POT test Auto If Test is failed Buzzer operates If Test is passed GOOD Lamp on and move to next process automatically 7 3 Checkpoint 1 Test voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 10
6. SECRET MODEL DATE HE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC LGElectronics LG ELELTRONILS LGElectronics BLOCK SHEET Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Renesas MICOM For Debug l i MICOM o Don t remove R3014 l o Wieren 2 not making float P40 l 8 R z A EE I MICOM_DEBUG HDMI_WAUP HDMI_INIT E SE MICOM_RESET OO et l l MHL_DET L x l GND z 3 A S Ready For I l l Re Sit N 3 5V_ST Ni wl Ze LC l ne ai fe 01335 o I 3 xe o t x o 63 H A l aa S Se ee eee ee 1 l N Sib HA Obora xX H X x O H amp ry J 3 NS SN SAB B BIN wm wm wem em em em om om om wm wm wm emm em emm em om e EE dE a His s es A Aala A lala Di R3021 10K GP4 High MID Power S P60 SCLAO e P140 PCLBUZO INTP6 12C_SCL_MICOM RL_ON POWER_ON OFF P61 SDAAO 2 POO TIOO TXD1 12C_sDA_MICOM L SCART_MUTE oe SCART_MUTE P62 PO TOOO RXD1 so0_w O EDID_WP 3 POWER_ON OFF2_4 Powsr_on orr2_4 P63 4 P130 POWER_ON OFF2_1 PANEL_C
7. e Data rate 660Mbps GN e External clock e Simple structure Merit ae e Standardization e Too many lines 36 Demeri e Clock skew e EMI due to clock lines e Bandwidth limit Copyright 2013 LG Electronics Inc All right reserved 1 0 83 Only for training and service purposes EPI sa he TS EEN OQ 6 e Point to Point e Data rate 1 8Gbps e Embedded clock Control e Fewer Lines 12 e Embedded clock low EMI Clock skew free e Easy to PCB design e Transmission Overhead 4bit delimiter LGE Internal Use Only CONTENT 4 Main PCBs Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Main PCB for Broadband xxLA6900 NA Chassis LA33B PCB P No EAX64872101 To PSU Main processor DDR Memory eMMC Memory Micom for Key IR sensing sacas Front Spk lt y 3 Y Audio AMP 12W 12W gt er z LVDS or EPI Wafer PSU WiFi RF Magic Remocon receiver Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CONTENT 5 Block Diagrams IIC Map Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only MTK5398 Block Diagram l S2 l A m DEMOD I 1 TC 1 ANALOG l DEMOD d Cl slot i a d Be DIGITAL L J d PTS _ rs 1
8. 1 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 3 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 1 This spec sheet is applied all of the 32 42 47 50 55 60 LED TV with LA33B chassis 2 Test condition Each part is tested as below without special notice 1 Temperature 25 C 5 C 77 9 F CST 40 C 5 C 2 Relative Humidity 65 10 3 Power Voltage Market Input voltage Frequency Remark USA 110 240V 50 60Hz Standard Voltage of each product 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 adjustmen
9. FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR Ce ELEL TRONILS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes MODEL IDATE BLOCK SHEET OY LGE Internal Use Only UART FOR D oa ION ING IF IS USED FOR OF THE SCHEMETIC Y URES SPECFI ONENTS IN THE N SYMBOL Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes SECRET LGElectronics AV COMPONENT DEBUG FOR A ERNAL AMOI 1 For TU_Debug Disconnet R374 LG ELECTRONICS MODEL BLOCK SHEET LGE Internal Use Only Ethernet Block EPHY_TDP EPHY_TDN EPHY_RDP EPHY_RDN THE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION e on SECRET Lc ELECTRONICS MODELI A DOTE EEE LG Bectronios BLOCK SHEET THE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only DUAL COMPONENT Q1801 1ST OTRI
10. ex Monthly 01 gt 01 0x00 oo 0x01 01 03 80 AO 5A 78 D EE 91 A3 54 4c ER 26 0x01 01 03 80 AO 5A 78 DA RE E A3 54 4c 99 26 0x02 OF 50 54 Al 08 00 31 40 45 40 61 40 m 40 81 80 0x02 OF 50 54 Al 08 00 31 40 45 40 61 40 u 40 81 80 0x03 01 01 Di 01 Di Di 02 3A 80 18 71 38 2D 40 58 20 0x03 01 01 01 01 01 01 02 34 80 18 H 38 2D 40 58 2c 0x04 45 00 AD 5A 00 00 00 1E 66 21 50 Bo 51 oo 1B 30 0x04 45 00 40 84 63 00 00 1E 66 21 50 Bo 51 00 18 30 0x05 40 70 36 00 AO 54 00 00 00 1E 00 00 00 FD 00 3A 0x05 40 70 36 Do 40 84 63 00 00 tE 00 00 00 FD 00 3A 0x06 3E 1E 53 10 00 DA 20 20 20 20 20 20 0x06 3E 1E 53 10 00 D 20 20 20 20 20 20 0x07 01 0x07 01 0x00 02 03 1D Fl 48 30 22 20 05 04 03 02 Di 23 09 57 0x00 02 03 2E F1 48 30 22 20 05 04 03 02 Di 23 09 57 0x01 07 E3 05 00 00 02 3A 80 0x01 07 0x02 18 H 38 2D 40 58 20 04 05 A0 5A 00 00 00 1E 01 0x02 E3 05 00 00 02 3A 0x03 1D 80 18 H 1c 16 20 58 2c 25 00 AD 5A 00 00 00 0x03 80 18 m 38 2D 40 58 2c 45 00 40 84 63 00 00 1E 0x04 SE DI 1D 00 72 51 bo tE 20 6E 28 55 00 AO 5A 00 0x04 Di 1D 80 18 W 1c 16 20 58 2c 25 00 40 84 63 00 0x05 00 00 1E ec D DO BA 20 E0 2D 10 10 3E 96 00 AD 0x05 00 9E 01 1D 00 72 51 DO ME 20 SE 28 55 00 40 84 0x06 5A 00 00 00 18 26 36 80 AO 70 38 1B 40 30 20 25 0x06 63 00 00 IE 00 00 00 00 00 00 00 00 00 00 00 00 0x07 00 AO 5A 00 00 00 14 00 00 00 00 00 00 00 00 Co 0x07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Reference Reference HDMI1 HDMI3 HDMI1 HD
11. 120 ohm BLM18PG121SN1D HP_OUT cr HP_OUT LG ELECTRONICS k SE HP_OUT C6105 C6107 om lu 0 luF lov I 16v R6102 1 43K VW MODEL DALE BLOCK SHEET LGE Internal Use Only TU6400 TU6405 TDSS H501F B ATSC_H NIM_H NC_1 DVB_H NIM_H TDSH G501D B TU6401 TU6403 TU6406 TDSN T701F B TDSN B601F B TPSO0 H601F B Thiwan_high_sensitlive TU_BR TU_Korea_PIP RESET SCL SDA B1 3 3V NC_2 SHIELD RF_S WCTL RF_S W_CTL Bes e eee i a RESET RESET_TUNER EA Le e 2 SCL SCL Ee 3 SDA SDA Bee r 4 B1 3 3W B1 3 3Vv B1 3 3V Nel eae E 5 3 3V_TU ve S_SIF SIF e TUNER_SIF_TU 6 B2 1 8WIlp2 1 8V B2 1 8V EE en hiya d TU_ 1 8V_TU CVBS CVBS pen TU_CVBS_TU 8 EN M_IF_AGC US NC_1 P J IF_AGC_TU 9 DIF P NC_2 e IF_P 10 DIF N NC_3 ier a IFN 11 B4 3 3V_S B3 3 3V e 1 3 3v_Tu 12 gt B5 1 8V_S B4 1 23v E SS E emod_TU 13 RESET_DEMOD A Ion seen zu e CNRESET_TU y U GND SA e Tis A Perey SD_ERROR e FE_DEMOD1_TS_ERROR 1 6 o SD_SYNC SYNC FE_DEMOD1_TS_sync 17 a a E SD_VALID e FE_DEMOD1_TS_VAL 18 D B MCLK SOEUR FE_DEMOD er SD_SERIAL_DO Set NCW2 E NC A 9 E NC A Dsg Ne DER NC_6 TU e LNA_CTRL_1 T _TS_CLK19 NC_9 LNA_CTRL_2
12. 275 286 298 311 330 60LA6200 UA 32856 13841 33672 61725 14502 1353 42539 4 21 30 269 272 283 295 308 327 42LA6205 UA 84 12305 33672 61725 14486 1353 41583 5 31 40 267 268 281 291 306 323 47LA6205 UA 85 12305 33672 61725 14486 1353 41515 6 41 50 266 265 280 288 305 320 50LA6205 UA 86 12305 33672 61725 14486 1353 41515 7 51 80 265 263 279 286 304 318 55LA6205 UA 87 13841 33672 61725 14486 1353 41515 8 81 119 264 261 278 284 303 316 60LA6205 UA 32856 13841 33672 61725 14486 1353 42539 9 Over 120 264 260 278 283 303 315 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 18 LGE Internal Use Only Model Tool 1 Tool2 Tool3 Tool4 Tool5 Tool6 Tool 42LA6650 UA 132 45585 29592 61425 14742 1354 47659 47LA6650 UA 133 45585 29592 61425 14742 1354 47659 50LA6650 UA 4230 45585 28592 61725 6294 1354 46635 55LA6650 UA 135 45585 29592 61425 14742 1354 47659 47LA6900 UD 165 45585 29592 61425 14742 1354 47659 55LA6900 UD 167 45585 29592 61425 14742 1354 47659 50LA6900 UE 4230 45585 28592 61725 6294 1354 46635 47LA7400 UD 181 45585 29592 61425 14742 1354 47659 55LA7400 UD 183 45585 29592 61425 14742 1354 476
13. 5 Adjust two modes Medium Warm Fix the one of R G B gain to 192 default data and decrease the others 6 Adj is completed Exit adjust mode using EXIT key on Remote controller If internal pattern is not available use RF input In EZ Adj menu 6 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 206 Gray pattern 5 1 6 Reference White Balance Adj coordinate and color temperature 1 Luminance 204 Gray 80IRE 2 Standard color coordinate and temperature using CS 1000 over 26 inch 5 1 7 Reference White Balance Adj coordinate and color temperature e Luminance 204 Gray e Standard color coordinate and temperature using CS 1000 over 26 inch Coordinate Mode Temp Auv x Y Cool 0 271 0 270 13 000K 0 0000 Medium 0 285 0 293 9 300K 0 0000 Warm 0 313 0 329 6 500K 0 0000 LGE Internal Use Only e Standard color coordinate and temperature using CA 210 CH 14 1 LGD 65 AUO and 50 AUO module 5 2 Option selection per country 5 2 1 Overview 1 Tool option selection is only done for models in Non USA Mode Coordinate Tem
14. C rman IE von SECHER PDIM 1 PWM Dim 1 PDIM 2 PWM Dim 2 L DIMO_VS L DIMO_SCLK LGE Internal Use Only Standard Repair Process Detail Technical Manual Error GC Gees Established B Power error Off when on off whiling viewing IN START Model Name GLOBAL PLAT4 Power Off Status Serial Number SU Y 1 107 S W Version MICOM Version d BOOT Version PWM min max StrDuty 5 EDID RGB HDMI 0 Chip Type Wi Fi Version Wi Fi Channel Wi Fi MAC MAC Address IP Address Widevine G ESN Num 0 HDCP1 4 HDCP2 0 RF Receiver Version Wi Fi Magic Search Camera Ver A Demod F W Ver D Demod F W Ver Debug Status Adjust Check SE Power Off S gt System 1 System 2 System 3 Model Number D L Test Option Spread Spectrum 10 Sync Level 11 Stable Count 12 SDP Server Selection 13 RF Remocon Test 14 Access Code Con O YU Es UON e 2 1 0 Access USB Status 1 1 T 1 C UTT 26 APP History Ver 19618 PQL DB LGD_ELF_SI2178_XXXXXX Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Entry method 0 POWER_OFF_BY_REMOTE_KEY 1 POWER_OFF_BY_REMOTE_KEY 2 POWER_OFF_BY_REMOTE_KEY 3 POWER_OFF_BY_REMOTE_KEY 4 POWER_OFF_BY_REMOTE_KEY 5 POWER_OFF_BY_REMOTE_KEY 6 POWER_OFF_BY_RESET 7 POWER_OFF_BY_REMOTE_KEY 8 POWER_OFF_BY_INSTOP_KEY 9 POWER_OFF_BY_REMOTE_KEY 10 POWER_OFF_BY_REMOTE_KEY 11 POWER_OFF_BY_A
15. Y VGH_EVEN Y ER OD Y VGH_F O VGH_R NO cks Y C1K5 O cK Y C1K3 Ick ti O 2_out HEMETIC DIAGRAM INCORPORATES PROTECTION FROM X RADIATION ZARDS WHEN SERVICING 1F IS ES SPECFIED PARTS BE USED FOR EAN SYMBOL MARK OF THE SCHEMETIC Copyright 2013 LG Electronics Inc All right reserved Only or training and service purposes i tew H_VDD 07737 R7718 Culo 0 1uF h 9 o 50V 9 1K 1 16m PANEL_VCC vcom2 opt 7732 3 Re m ay vcom_p l y 1716W 1 16u NCP18WB474F10RB e DEE R Keen FE c2 cua VCOM_IN lt LEVEL SHIFTER BLOCK gt 1 16w vee 87707 1_FB Lues Suen 100 DACH Aa R7712 ver r 100 043 SI Iv E 100 MAIS VCOML_FB Les RST BEE CC 100 OM_IN M1 VDD H VDD I 16W Yer LS REVERSE 4 TX 27749 VGL_I pi bean a E SH_R EI lt REVERSE z OPT oft DISCHG ven Bd TXACLKP S a TXACLKN TPS65198 IC7701 vst EPI gt R7719 D VSENSE BE TXALP GIP_RST TXALN in i R7704 47 FROM Si est DISCHG Vcore 1 16W c7718 SpE 3 50v P1_Locxs_source R7705 a7 S MCLK_soc MCLK 1 16w mks FROM SOC Stour Siu 16v 25v M_LOOP ane o R7 a7 A R7734 SCLK_S Me G
16. mm om om em em om om em em om om E HE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC Copyright 2013 LG Electronics Inc All right reserved Only or training and service purposes 10 EA 12 13 14 16 IT 18 19 20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 TU_Q W_KR BR TW close to TUNER sais 3 3V_TU CO JP 16508 21SN1D TIS R6500 1K TU_N M_TW BR RE_SWITCH_CTL_TU TU_RESET1_TU 50 12c_s TUNER_StF_ty DO opt R6516 to TUNER clos TU_ 1 8V_TU lt A gt TU_CVBS_TUL ro ed AS us Ai lose to Tuner R6506 00 J IF_AGC IF_AGC_TU close to Tuner TU_S N Q_T US KR TW TUNER_SIF TU_A_GLO be guarded by ground on both of them Width gt 12mils to Signal Width Ground Width gt Deg IF_P 1 should should be guarded by ground 3 3V_TU 2 No via reno IF_N 3 Signal Signal 3 3V_TU T R Power_D_Demod_TU no A4 1 23V_D_Demod TU_N M Li vw TIS Eb 1 100 TU_Q W_KR BR TW CO
17. p_peT_por _12_24v z o 100 NC_1 Sie burn LR R2416 P_DET_BOTH_12_24 WwW E a 1 usos 2 P_DET_BOTH_12_24V E _DET_BOTH_24_3 5V SE 24V NC_2 GND A P DET a SA i ower E esti P_DET_ONLY_12V R24 2 7K op j 14 Ne 93 POWER_DET POWER_ON OFF2_3 P_DET_ONLY_12V R2409 1 2K Vout 1 222 1 R1 R2 24V gt 3 12V gt 3 ST_3 5V gt 3 DDR MAIN 1 5V DDR MAIN 1 5V POWER_ON OFF2_1 SH SE SS e e c2420 3 3V_NORMA MAX 3 4 A ca EH 4 WS 3 5V_ST 16v 02455 i 1 2V_MTK_CORE A 0 luF 12 d 12409 DEA 16V BLM18PG121SN1D 12400 E czas2Lozas BLM18PG121SN1D 3 D 7 12411 Placed on SMD rop TOur ool Our 2 2uH ov 10V La kd ST yy Placed on eu ber NR5040TZR2N c2are cza19 g E ee c24s eec24siee c2454 iov Tie j lou P 10u R2402 mach Ke S 6 Z 6 8K i S A L Re R2403 poWER_ON OFF1 10K 3A Vout 0 765 1 R1 R2 Vout 0 8 1 R1 R2 Vout 0 827 1 R1 R2 1 521V HE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
18. 1 H CONTROLER A B DIGITAL 1 0 I ONDO Cir DEMOD s I 1n SSP LNN USB1 e USB2 e use 3 LNB USB_WIFI E ro L wen vm according to input spec Copyright 2013 LG Electronics Inc Only for training and service purposes HDMI EDEP HDMI2 EP AT EEPROM HDMI3 i B wus F Homia G a wg EAN Ki l L R Out CVBS LGE 12S Out COMP LOCAL DIMMING M Remote Module RGB H V Pc AuDI 0 L R In I OPTIC D SPDIF OUT Remote Control l I LKA Eth RS 232C ONLY DOV kas a cei est ett la I All right reserved LGE Internal Use Only Video Audio In Block Diagram Jack Side JK501 l COMP1_Y AV1_CVBS COMP1_Pb COMP1 AV1 DVI_L_IN COMP1 AV1 DVI_R_IN SC_CVBS_IN SC_R G B SC_L R_IN JK4600 Tuner TU_CVBS ee TUNER_SIF IF_P N W a Parallel TS ERROR VAL SYNC CLK Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes SoC Side COMP1_Y AV1_CVBS_SOC CAE CVBS2P COMP1_Pb_SOC EE PBOP ower soe PROP COMP1 AV1 DVI_L_IN_SOC AIN4_L_AADC l COMP1 AV1 DVI_R_IN_SOC AIN4_R_AADC M13 I MT5398 SC_CVBS_IN_SOC CVBS3P sc rs soc SOY1 l SC_R G B_SOC PR1P PB1P Y1P l SC_L R_IN_SOC AIN1_L R_AADC TU_CVBS CVBS1P TUNER_SIF IF_P N MPXP ADCINP_DEMOD ADCINN_DEMOD Parallel TS ERROR VAL SY
19. APD PMV48XP ewi 2 DEEN aE EER e E MMBT3904 NXP DMT PEDA TASE SE KE z S ND DE on sv s R332 6 A HDMI_EXT_EDID ER 100k E y Sa GND e 100 pad ER i z R3328 100 109 2 e DDC_SDA_3_3 3 e R3341 H kl 100 ER AN R3380 e DDC_SCL_ OPT SC ik crie MHL_DET HL upmz_arc E_REMOTE D331 A MH YT CEC_REMOTE RCLAMPO524PA EX SS cK d e Lo c_sCL_MHL bl CK _HDMI1 a SAN A CK _HDMI1 3 DH CK _HDMI3_JACK e Si K _HDMI3_JACK 3 DO _HDMI Si po a DO _HDMI AAE 4 IA DMI3 c 3 SES DO _HDMI3_JACK a DO _HDMI3_JACK Do opt D1 E D3318 E RCLAMPOS242A RCLAMPOS24PA D1_GND EE HDMI_EXT_EDID 5V_HDMI_1_SOC 5V_NORMAL 4 Sl 1 DMI3_JAC D1 _HDMI E pin d ee a D1 _HDMI out D1 _HDMI3_JA EE MMBT3904 NXP EDID_WP a ze d 03 2 A LA ki a 5 D2 _HDMI1 c Sle e E D2_GND PIS HOME E al q HDMI1_s g MMBD6100 R3339 R3340 A D2 _HDMI3 RK a D3300 47K 47K a D2 A g E A a E z E JK3300 b z Hi 51U0195 312HFN E R B MP o A GES 3K3303 a 8 a a o a 51U0198 312HFN E R B LG 2 ta e Baas be _ Sei E E K u L gt HDMI 23319 x E HDMI 1 22 4 4 DDC_SDA_MHL HDMI_EXT_EDID z z l R3320 2 2 22 HDMI_EXT_EDID HE N SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE N SYMBOL MARK OF THE SCHEMETIC LGElectronics MODEL DATE Lo ELEC
20. Bod A R 5 5 5a oy AS 5 SS y Ge Ger al E ay oa 1 E E a 3 d For CEC 3 E E z i 3 5V_ST CEC_REMOTE HDMI_CEC HE N SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC LGElectronics MODEL DATE Le ELECTRONICS BIEL SHEET Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only xXx ox EI EI Lei 66 2 a z ss 5 5 5 i x We a El EES 3 Zogo m E PS 1 D as 38 A OL NON_TU_H N S_T US NORMAL i N I ei 3316 3320 e Zo mur Gen tor a 16v 16v a 3 3V_NORMAL RSVDL1 AVDD12 VDD12_1 RSVDL2 RESET PWR5V_DET 103304 TXO 12v _HDMI4_MHL _HDMI4_MHL 3 3V_NORMAL 5V_NORMAL SV_MHL TXO SIL_RESET LO DO _HDM14_MHL LO DO _HDMI4_MHL
21. Main Board Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Check Power Board Replace T con Board 12v 3 5v etc or module And Adjust VCOM Repair Power Board or parts Replace Inverter or module Et Repair Power Board or parts gt Replace Main Board gt Re enter White Balance value LGE Internal Use Only Standard Repair Process Established ae A Video error e mg e No video No audio Revised date symptom Check various voltages Check and No Video of Power Board replace No audio 3 5V 12V 20V or MAIN B D 24V SCH Replace Power Board and repair parts Copyright 2013 LG Electronics Inc All right reserved E 41 Only for training and service purposes LGE Internal Use Only Standard Repair Process Established A Picture Problem date Error 2012 11 30 symptom y 3 E Picture broken Freezing Revised date By using Digital signal level meter By using Diagnostics menu on OSD Check RF Signal level Menu Set up Support gt Signal Test Signal strength Normal over 50 Signal Quality Normal over 50 Check whether other equipments have problem or not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc E Menu Setup Booster Check RF Cable Booster menu Connection Check On gt 0ff Check gt 1 Reconnection i S W Version Off On Check 2 In
22. ROFF_AUTOOFF r off by AUTO OFF ROFF_ONTIMER r off by ON TIMER ROFF_RS232C r off by RS232C ROFF_RESREC ff by Reservated Record ROFF_RECEND Power off by End of Recording ROFF_SWDOWN Power off by S W Download _UNKNOWN POWEROFF_ABNORMAL 1 POWEROFF_CPUABNORMAL Power off by unknown status except listed case Power off by abnormal status except CPU trouble f by CPU Abnormal LGE Internal Use Only Standard Repair Process e Established Proved symptom j No audio Normal video w A25 gt A24 Check user N Check audio B 24V Y No audio orma menu gt of Power Board Screen normal voltage Speaker off Y N Cancel OFF Replace Power Board and repair parts N Se Speaker Disconnectio Replace MAIN Board isconnection Y Replace Speaker Copyright 2013 LG Electronics Inc All right reserved Only for trainina and service Standard Repair Process Error C Audio error ge Se Wrecked audio discontinuation noise abnormal audio discontinuation noise is same after Check input signal compared to No audio Check input signal RF External Input signal N Signal ormal 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 Copyright 2013 LG Electronics Inc All right reserved Only
23. SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A SYMBOL MARK OF THE SCHEMETIC Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Close to eMMC Flash L DIMO_MOSI L DIMO_SCLK CI x100 27MHz OF L l duo TAL_2 Tein DVB_1 Ic105 LGE2122 A2_M13 AK11 LGElectronics LG ELECTRONICS VDD33_XTAL_STB VSS33_XTAL_STB AN17 los VDD33_VGA_STB VS533_AVSS33_VGA_STB oo E iH bee AVDD33_PLL AVSS33_PLLGP AVSS33_CPU TCLO S LGE2122 A2_M13 DEMOD_RST DEMOD_TSCLK DEMOD_TSDATAO DEMOD_TSDATA1 DEMOD_TSDATA2 DEMOD_TSDATA3 DEMOD_TSDATA4 DEMOD_TSDATAS DEMOD_TSDATA DEMOD_TSDATA7 oo sy DEMOD_TSVAL CI_IN CI_TSCLK CI_TSDATAO PVR_TSCLK PVR_TSVAL ER gt VR_TSDATAO PVR_TSDATA1 I
24. SMARTCARD_DET ST SD_EMMC_DATA 2 ARD_VCC SD_EMMC ARD_DATA SD_EMMC_CLK PWM_DIM1 HUB ear PWM2_PULL_DOWN_1K OWN_1K SMARTCARD_CLK SD_EMMC_DATA 0 WR Mb EL SD_EMMC_DATA 1 SMARTCARD EL SD _DATA 1 SMARTCARD_RST _DATA 2 SMARTCARD_DET SD_EMMC_DATA 3 EMM EMMC D I SMARTCARD_VCC MMC_CMD SMARTCARD_DATA SD_EMMC_CLK AL16 CTRL_11 AM16 EJ RL_10 HI comba CI Loser lt C HPD AHL9 HU avi_e AK16 Cant ar Hor creL3 DEE E DO RF_SWITCH_CTL PEET gt OPCTRL_1_SCL 33 AJ19 KSERA R185 C OPCTRL_0_SDA 10K ODEL LOEK I SHEET I ey LGE Internal Use Only Se As oe S ES yt A Sa ENEE EE LGE2122 A2_M13 Ic105 LGE2122 A2_M13 IC105 LGE2122 A2_M13 Le 105 LGE2122 A2_M13 Place at JACK SIDE ESSENTIAL T THE CRITICAL C To aN DEE SECRET MODEL eme DATE es ONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Ce ELELTRONILS BLOLK E SHEET gt Y Copyright 2013 LG Electronics Inc All right reserv
25. foot from a carpeted floor can generate static electricity suf ficient to damage an ES device General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate 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 cm brush with a metal handle Do not use freon propelled spray on cleaners 5 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 6 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 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
26. the circuit board printed foil d Closely inspect the solder area and remove any excess or splashed solder with a small wire bristle brush 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 1 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 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 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 leads as close as possible to the component body 2 Bend into a U shape the end of each of three leads remaining on the circuit board 3 Bend into a U shape the replacement transistor leads 4 Connect the replacement transis
27. unit under test Copyright 2013 LG Electronics Inc All 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 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 solder 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 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 electri cally 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 material to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or circuit 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
28. 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 right reserved Only for training and service purposes LGE Internal Use Only CONTENT 9 Repair guide Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Contents of LCD TV Standard Repair Process O Error symptom High category A Video error B Power error 7 D Function error Error symptom Mid category 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 No power Off when on off while viewing power auto on off No audio Normal video Wrecked audio discontinuation noise No response in remote controller key error recording error memory error External device recognition error Circuit noise mechanical noise Exterior defect First of all Check whether there is SVC Bulletin in GCSC System for these model Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 38 83 LGE Internal Use Only Contents of LCD TV Standard Repair Process Detail Technical Manual A Video error_ No video Normal audio A Video error_Color error A Video er
29. 0 00 80 1E 20 CO OE 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 15 LGE Internal Use Only 4 4 4 4 3D_10bit_PCM US _ xvYCC off HDMI EDID 3D_10bit PCM US _xvYCC off 0x00 00 FF FF FF FF FF FF oo 1E 6D ER 0x01 01 03 80 An 54 78 DA EE E A3 54 40 ER 26 0x02 OF 50 54 Al 08 00 31 40 45 40 61 40 H 40 81 80 0x03 01 DI DI 01 01 01 02 34 80 18 H 38 2D 40 58 2c 0x04 45 00 40 84 63 oo 00 1E 66 21 50 Bo 51 oo 1B 30 0x05 40 70 36 oo 40 84 63 oo oo 1E 00 00 oo FD oo 34 0x06 3E 1E 53 10 oa DA 20 20 20 20 20 20 0x07 01 0x00 02 03 2E FI 48 30 22 20 05 04 03 02 01 23 09 57 0x01 07 0x02 E3 05 oo 00 02 34 0x03 80 18 H 38 2D 40 58 2c 45 00 40 84 63 00 oo 1E 0x04 01 1D 80 18 H 1c 16 20 58 2c 25 00 40 84 63 oo 0x05 00 9E DI 1D 00 72 51 Do 1E 20 6E 28 55 00 40 0x06 63 00 00 1E oo 00 00 oo 00 00 00 00 oo 00 00 0x07 00 00 00 oo 00 00 00 oo oo 00 00 00 00 oo oo 2 Reference HDMI1 HDMI3 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 b Serial No Controlled on production line Month Year Controlled on production line ex Monthly 01 gt 01 Year 2013 gt 17 Model Name Hex LGTV MODEL NAME HEX 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 2
30. 0 20 20 Chassis LA33B e Checksum LG TV Changeable by total EDID data 1 2 3 HDMI 1 E8 B5 X HDMI2 E8 A5 X HDMI3 E8 95 X 5 Final Assembly Adjustment 5 1 White Balance Adjustment 5 1 1 Overview 5 1 1 1 W B 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 R G B is fixed at 192 and the other two is lowered to find the desired value 3 Adj condition normal temperature Surrounding Temperature 25 5 C Warm up time About 5 Min Surrounding Humidity 20 80 Before White balance adjustment Keep power on status don t power off 5 1 1 2 Adj 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 10cm 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 5 1 2 Equipment 1 Color Analyzer CA 210 NCG CH 9 WCG CH12 LED CH14 2 Adj Computer During auto adj RS 232C protocol is needed 3 Adjust Re
31. 0mA 2 TEST time 1 second 3 TEST POINT GND Test POWER CORD GND and SIGNAL CABLE GND Hi pot Test POWER CORD GND and LIVE amp NEUTRAL 4 LEAKAGE CURRENT At 0 5mArms Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 21 8 USB S W Download optional Service only 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is lower than that of TV set it didn t work Otherwise USB data is automatically detected 3 Show the message Copying files from memory 4 Updating is staring 5 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option 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 a DTV ATV test on production line After downloading TOOL OPTION setting is needed again 1 Push IN START key in service remote controller 2 Select Tool Option 1 and Push OK button 3 Punch in the number Each model has their number LGE Internal Use Only 9 Optional adjustments 9 1 Manual ADC Calibration 9 1 1 Equipment amp Condition 1 Adjustment Remocon 2 801GF 802B 802F 802R or MSPG925FA Pattern Generator Resolution 480i Comp1 patt
32. 15 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only M13 12C Block Diagram 3 3V_MHL 1C105 MTK5398 3 3V_Normal 4 3 5V_ST E 3 3V_Normal I2C_SDA3 3 DC GC L3 LNB 1 2 3 3V_Normal Sen TUNER S TUNER S 2 7KQ I2C_SCL4 ES 3 3V_Normal ps an I2C_SDA2 Mic Ge sci 3 3V_Normal I2C_SCL5 A 1 2KQ I2C_SDA1 E I2C_SCL1 P7600 Local dimming HDCP EEPROM Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only I2C_SDA6 I2C_SCL6 CONTENT 6 Structure of TV set and connection of sub assy s Copyright 2013 LG Electronics ae All right reserved 22 83 Se Only for training and service purp LGE Internal Use Only Interconnection 1 47LA6900 NA Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 23 83 IR Assy RF Assy WIFI Assy Key Assy Cables Main LPB 24Pin cable Main Module LVDS Cable LED driver PSU 8Pin IR key Cable SPK Cable RF Assy Cable WIFI Assy Cable LGE Internal Use Only CONTENT 7 New sub assy s Instruction of new sub assy s How to use tool Download Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only PEA GS BAICH Introductions of 13Y RF assy Magic Rem
33. 19 OPCTRL1 AJ19 OPCTRLO R29 DEMOD_TSSYNC P27 DEMOD_TSVAL P30 DEMOD_TSCLK DEMOD_TSDATAO 7 AMIS ADIN7_SRV AM27 ADCINP_DEMOD AN27 ADCINN_DEMOD PCM 5V CTL _ KI AEN CI ON l Power detect 5V_CI_ON 3 3V_NORMAL l F28 TCON12 10K Q 47K Q L33 SPI_CLK Cl_CD1 Cl_CD2 CL VS1 PCM_CE1 PCM_CE2 PCM_IOWR PCM_IORD L30 SPI_CLK1 M27 PVR_TS VAL M31 Cl_TSCLK N34 SPI_DATA N35 SPI_CLE Cl_ADDR 0 14 CI_A_ADDR 0 14 GPIO0 14 Cl_DATA 0 7 Cl_A_DATA 0 7 GPIO26 33 PCM_RST PON WA PCM_INPACK PCM_A_REG PCM_IRQA P33 PVR_TSDATAO0 SCH OE R36 CI_TSVAL T34 DEMOD_RST P34 PVR_TSDATA1 N36 CI_INT ot R37 Cl_TSSYNC PCM_WE R33 PVR_TSSYNC jq_MTK5398_TS_CLK CI_TS_CLK R3 PVR_TSCLK MTK5398_TS_VAL CI_TS_VAL MTK5398_TS_SYNC CI re SYNC R35 Cl_TSDATAO MT5398_TS_IN 0 7 CI_TS_DATA O 7 GPI1034 41 472 i pi0 18 25 __MT5398_TS_OUT 0 7 a CI_MDI 0 7 vcc CI_DET1 CI_DET2 Ve CARD EN CARD ENZ IOWD IORD ADDR O 14 DAT O 7 CI_LRESET Cl_WAIT INPACK REG ARQA o EN WR_EN TS_OUT_CLK TS_OUT_VAL TS_OUT_SYNC TS_OUT 0 7 TS_IN 0 7 LGE Internal Use Only Panel Interface Block Diagram PANEL_VCC 12V OP ria a E 0 50Pin X 2 LSA L di9 ES II ES E a 91191 TO m 2 r O O A amp 8LVND 9LYNS 0LYNWS 6WVO EVYNWNSD LYND EPI LOCK6 SOURCE GMA4 GMA5 GAM7 GMA12 GMA14 GMA
34. 33160 61725 12454 1353 42539 2 3 5 280 285 294 308 319 340 32LN5750 UH 289 12305 33160 61725 4246 5193 8747 3 6 9 278 284 292 307 1317 339 39LN5750 UH 2339 12305 33160 61725 4246 5193 8747 4 10 19 276 281 290 304 315 336 42LN5750 UH 292 12305 33160 61725 12438 1353 41515 5 20 35 275 277 289 300 314 332 47LN5750 UH 293 12305 33160 61725 12438 1353 41515 6 36 49 274 274 288 297 313 329 50LN5750 UH 294 12305 33160 61725 12438 1353 41515 7 50 79 273 272 287 295 312 327 55LN5750 UH 295 13841 33160 61725 12438 1353 41515 8 80 119 272 1271 286 294 311 326 60LN5750 UH 33064 3841 33160 61725 12438 353 41515 9 Over 120 1271 270 285 293 1310 325 32LN570B UH 289 2305 33160 61725 4262 5193 8747 47LN5790 UH 293 12305 33160 61725 12454 1353 41515 2 Aging chamber LN5xxx LA6xxx LA7xxx LA8xxx 55LN5790 UH 294 12305 33160 61725 12454 1353 41515 A Cool Medium Warm 60LN6150 UC 32856 13841 33160 61725 12454 1353 42539 ing time GP4 Min X Y X Y X Y 42LA6200 UA 84 12305 33672 61725 14502 1353 41515 271 270 285 293 313 329 47LA6200 UA 85 12305 33672 61725 14502 1353 41515 1 0 5 280 285 294 308 319 340 50LA6200 UA 86 12305 33672 61725 14502 1353 41515 2 6 10 276 280 290 303 315 335 55LA6200 UA 87 13841 33672 61725 14502 1353 41515 3 11 20 272
35. 4 0AM748 54Mpb and above Current consauaphoal 5 De Full load 43014 Operating Temperature 0 60 C ambient Sie Temperature M 60 ambient Humidicy vader 85 and must be metten Regulation and certification compliance available CE FCC e WiFi Ge CERTIFIED e WPS Wi Fi PROTECTED SETUP LGE Internal Use Only CONTENT 8 Adjust way of new features Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only BESA 25 EHIC 12Y Widevine amp HDCP 2 0 8 NETFLX 1 Widevine 2 HDCP 2 0 amp NETFLIX 3 DTCP Copyright 2013 LG Electronics Inc All right reserved 33 83 Only for training and service purposes LGE Internal Use Only 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 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 right reserved Only for training and service
36. 59 60LA7400 UD 47LA6450 UA 101 45585 6536 61725 14374 1353 42155 Xx Tool option can be reconstructed by Software 5 3 Local Dimming Inspection 1 Press TILT key of the Adj R C and check moving patterns The black bar patterns moves from top to bottom If a local dimming function does not work a whole screen shows full white lt Local dimming All model except for 32LA6600 NE gt Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 19 5 4 Magic Motion remote controller Check 5 4 1 Test equipment RF remote controller for check IR KEY CODE remote controller Check AA battery before test A recommendation is that a tester change battery every lots 5 4 2 Test 1 Make pairing with TV set by pressing Start key Wheel key on RCU 2 Check a cursor on screen by pressing Wheel key of RCU 3 Stop paring with TV set by pressing Back Home key of RCU 5 4 3 Applied models Chassis LA33B Model Name 42 47 50 55LA6650 UA 47 55LA6900 UD 50LA6900 UE 32 39 42 47 50 55 60LN5700 UA UH 32 39 42 47 50 55 60LN5750 UH 32LN570B UH 47 55LN5790 UH 47 55LA6450 UA Magic RF receiver Built in Dongle Xx Dongle Model An USB dongle type receiver will be supplied in form of accessory So this pairing test is not necessary for these models 5 5 Wi Fi MAC A
37. 60 74 25 HDTV 720P 2D to 3D Side by Side Top amp Bottom 2 1920 1080 33 75 60 74 25 HDTV 10801 2D to 3D Side by Side Top amp Bottom 5 9 2D to 3D Conversion No INPUT Freq Resolution 1 Digital TV Analog TV 2D Support freq 2D Support resolution 2 HDMI 2D Support freq 2D Support resolution 3 Component 2D Support freq 2D Support resolution 4 Composite 2D Support freq 2D Support resolution 5 USB 2D Support freq 2D Support resolution No Side by Side Top amp Bottom Checkerboard Single Frame Sequential Frame Packing 2D to 3D Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 242 LGE Internal Use Only ADJUSTMENT INSTRUCTION 4 MAIN PCBA Adjustments 4 1 ADC Calibration An ADC calibration is not necessary because MAIN SoC LGExxxx is already calibrated from IC Maker If it needs to adjust manually refer to appendix 1 Application This spec sheet applies to LA33B Chassis applied LED TV all models manufactured in TV factory 2 Specification 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 5 C of temperature a
38. 8 5 Top and Bottom Checkerboard Row Interleaving Column Interleaving Frame Sequential 74 17 74 25 2D to 3D Side by side Top and Bottom 5 1920 1080 53 946 54 23 976 24 148 351 148 5 2D to 3D Side by side 26 973 27 148 351 148 5 Top and Bottom Checkerboard Row Interleaving Column Interleaving 74 176 74 25 2D to 3D Side by side Top and Bottom 6 1920 1080 67 432 67 5 29 97 30 00 148 35 148 5 2D to 3D Side by side Top and Bottom Checkerboard Row Interleaving Column Interleaving Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes AA LGE Internal Use Only 5 7 USB DLNA Input 5 7 1 3D Auto detection No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 000 74 25 Side by side Top and Bottom HDTV 1080P Checkerboard Row Interleaving Column Interleaving Frame Sequentia Photo Side by side Top and Bottom 5 7 2 3D Manual No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 000 74 25 Side by side Top and Bottom HDTV Checkerboard Row Interleaving 1080P Column Interleaving Frame Sequentia Photo Side by side Top and Bottom 5 8 RF 3D Input DTV No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed mode 1280 720 45 000
39. C DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION n SECRET LG ELECTRONS MODEL DATE THE CRITICAL COMPONENTS IN THE N SYMBOL MARK OF THE SCHEMETIC LGElectronics BLOLK Po SHEET Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only OCP USB2 3 3V_NORMAL Ic4306 TPS2066CDGNR EP GND 5V_NORMAL THERMAL USB_CTL2 USB_CTL3 4 o USB_OCD3 THE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION A SECRET LG ELECTRONS MODEL DATE THE CRITICAL COMPONENTS IN THE N SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only BLOCK SHEET 3 3V_NORMAL i USD L 84500 Soe eo ss DVR Ready orp io MAX 1 5A OPT 10K IC4500 BD82020FVJI 3AU04S 305 ZC LG JK4500 A 5V_NORMAL USB_DM1 c4500 D IUE 16v USB_DP1 o E El Ei E n z o a m a C4502 Ze 10ur 10v USB_OCD1 C CLAMPO502BA D4500 OPT TE USB_CTL1 rs THE N SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION
40. CDET 12 POWER_OFF_BY_ACDET 13 POWER_OFF_BY 14 POWER_OFF 15 POWER_OFF_BY_ACDET OFF_BY_ACDET ia ACDET 16 POWER_ a BY_ACDET 17 POWER_OFF_BY_ACDET 18 POWER_OFF_BY_ACDET 19 POWER_OFF_BY_ACDET 20 POWER_OFF_BY_ACDET 21 POWER_OFF_BY_ACDET 22 POWER_OFF_BY_ACDET 23 POWER_OFF_BY_ACDET 4 POWER_OFF_BY_ACDET POWER OFF MODE checking method ay 1 Press the IN START button of the remote controller for adjustment 2 Check the entry into adjustment item 3 10 89 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error F E F Established symptom C Audio error No audio Normal video Es el Checking method in menu when there is no audio ay Content lt ALL MODELS gt E3 Ay 48 TV AA e 294117 BCIAI HDMI ARC lt WE lt WS O iG Age ya B O euer 4a PH Checking method 1 Press the MENU button on the remote controller 2 Select the AUDIO function of the Menu 3 Select TV Speaker Or Other Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual SE i i i Established symptom C Audio error_No audio Normal video Content Voltage and speaker checking method when there is no audio date lt ALL MODELS gt 24 Pin Power Board gt Main Board 35 remeros fa won af os o Pomme ome s os e romeo e Checking order when there is no au
41. CLK aai FROM SOC R7723 R7724 a FROM SO R 7 c1749 7720 1 168 1 16w lur opt SOV 50v _ ven Kess LG ELELTRONILS MUDEL DATE LGElectronics BLOCK r con SHEET LGE Internal Use Only THE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION A SECRET LG ELECTRONS MODEL H THE CRITICAL COMPONENTS IN THE N SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only BLOCK con SHEET k duer Sark Sr Se ds 3 FOR M13 kat Geen EMMC_DATA 0 7 AR8100 a 1 16W EEN S EMMC DATAT11 Ee EMMC_DATA 2 a 52 kd 53 Ba 55 mm 22 B nen ad M6 M5 kd Se SS S Sege 22 L t ad MD ast eMMC serial 100 ohm option K6 ehanmgzer n d E 1 16W 3 E Es E amp S E z ee Ate A E E E a a a a See e Sr 3 g a g 3 d SCH A a a 3 dr El Y Z E g a Don t Connect Power At VDDI Just HE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THA
42. Demod F W Ver gt Null D Demod F W Ver Null Debug Status E EVENT Access USB Status 1 1 T 1 C UTT 26 APP History Ver 19618 2 oni ne a A Press the IN START with the remote controller for adjustment on Le y Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes N START l Bop Mag o O 00 sl OD ONS Wh Adjust Check ADC Data Power Off Status System 1 System 2 System 3 Model Number D L Test Option Spread Spectrum 10 Sync Level 11 Stable Count 12 SDP Server Selection 13 RF Remocon Test 14 Access Code Adjust Check 1 Country Group Press OK to Save Country Group Code Country Group Country 2 Tool Option Tool Option1 Tool Option2 Tool Option3 Tool Option4 Tool Option5 Tool Option6 Tool Option 3 Adjust White Balance amp Adjust ADC OTP Component 5 EDID HDMI1 HDMI2 HDMI3 LGE Internal Use Only Standard Repair Process Detail Technical Manual Error A Video error el arate ae bar Established symptom residual image light spo date Revised Content LCD TV connection a 1 be As the part connecting to the external input check the screen condition by signal Copyright 2013 LG Electronics Inc All right reserved SS 59 83 _ Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual nee i i i Established symptom A Video
43. E Internal Use Only Standard Repair Process Established Error date symptom Pitas ymp Circuit noise mechanical noise Revised date PA Replace PSU with LED driver Identify Check nose type location of OR noise Replace LED driver Check location of noise x Mechanical noise is a natural eee SE the Ist S Xx If there is a Tak Tak noise from the cabinet SS CNDUON HY ene cue lomeraoes ot refer to the KMS fix information and then proceed agree apply mie Process by stage ge as shown in the solution manual e Get panis of eech m For models without any fix information provide art related to nose in the Owner s Manual the description xX When the nose is severe replace the module For models with fix information upgrade the S W or provide the description Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Error F Exterior defect ge MENS Symptom Eeardefes Revised date exterior damas o gt Replace module A28 Replace cabinet Replace remote controller Replace stand Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Contents of LCD TV Standard Repair Process Detail Technical Manual Continued from previous page SO marme a o emeng stev me POWER BORRO votage mese ened m NEESS EECH POWER OFF MODE checking met
44. EUN SFF2 LGD 47LA6400 6450 UA LC550EUN SFF2 LGD 55LA6400 6450 UA T500HVDO2 1 AUO 50LA6950 UE LC420EUG PFF1 LGD 42LA6650 UA LC470EUG PFF1 LGD 47LA6650 UA 47LA6900 UD LC550EUG PFF1 LGD 55LA6650 UA 55LA6900 UD LC470EUH PEF1 LGD 47LA7400 UD LC550EUH PEF1 LGD 55LA7400 UD HC600DUD SLFO1 LGD 60LA7400 UA 10 Operating Environment 1 Temp 0 40deg 2 Humidity 80 11 Storage Environment 1 Temp 20 60 deg 2 Humidity 85 Copyright 2013 LG Electronics Inc All rights reserved 7 LGE Internal Use Only Only for training and service purposes 5 Supported video resolutions 5 1 Component 2D input Y CB PB CR PR No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 1 720 480 15 73 60 13 5135 SDTV DVD 4801 2 720 480 15 73 59 94 13 5 SDTV DVD 4801 3 720 480 31 50 60 27 027 SDTV 480P 4 720 480 31 47 59 94 27 0 SDTV 480P 5 1280 720 45 00 60 00 74 25 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1920 1080 33 75 60 00 74 25 HDTV 10801 8 1920 1080 33 72 59 94 74 176 HDTV 10801 9 1920 1080 67 50 60 148 50 HDTV 1080P 10 1920 1080 67 432 59 94 148 352 HDTV 1080P 5 2 Component 3D input Y CB PB CR PR No Resolution H freq kHz V freq kHz Pixel clock 3D input proposed mode Proposed 1 1280 720 45 00 60 00 74 25 2D to 3D Side by Side Top and Bottom HDTV 720P 2 1280 720 44 96 59 94 74 176 2D to 3D Side by
45. IC Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes SECRET LGElectronics r LOCAL DIMMING To LED DRIVER LG ELECTRONICS MODEL n sme DATE BKL E LGE Internal Use Only 3 3V_NOR A THIS IS REVERSE PATTERN Left Source 51P 7701 RW 50v 27759 277 GC o o OF AMCCO208 lt POWER BLOCK gt R7730 ew wate 1 16W 5 Tour SA sun 14 1h lt PMIC_RESET Wa ed LEE ert Zelter e d V Geste LOM2HPN2R2MGOL BRITO 7 10uF 10uF 2 2uH 10K SWP INSTEAD OF AMC MAL THERMAL gt CIRLP 49 E c7748 107700 E i TPS65178RSLR von ees ctrup gt a SAS EFSI R7700 PANEL_V pa 6 T 1 16W i GE E e a A aaa IN LOCATION Right Source 41PIN LOCATION GMAL ona gmaio GMA12 GMA14 A15 GMA16 GMA18 66 Lima CH6 lt rxp2n FROM soc OOO TREIE CH5 j lt TXBIN FROM S creo CH4 lt reon FROM S0C H_VDD HE ZN SYMBOL MARK OF THIS SC SPECIAL FEATURES IMPORTANT FO FILRE AND ELECTRICAL SHOCK HA ESSENTIAL THAT ONLY MANUFATUR HE CRITICAL COMPONENTS IN TH lt VCOML_FB
46. JP CN_RESET_TU H J 1 L6507 4 1 8V_TU FE_DEMOD1_TS_ERROR Lo BLM18PG121SN1D TU_N M Q W_KR CN BR FE_DEMOD1_TS_ERROR FE_DEMOD1_TS_SYNC FE_DEMOD1_T FE_DEMOD1_TS_VALL FE_DEMOD1_TS_CLK FE_DEMOD1_TS_VAL FE_DEMOD1_T FE_DEMOD1_TS_DATA O0 FE_DEMOD1_TS_DATA 1 FE_DEMOD1_TS_DATA 0 7 FE_DEMOD1_TS_DATA 2 L FE_DEMOD1_TS_DATA 3 FE_DEMOD1_TS_DATA 4 FE_DEMOD1_TS_DATA 5 L FE_DEMOD1_TS_DATA 6 L FE_DEMOD1_TS_DATA 7 1 23V_D_Demod_TU 2_RESET_TU 1 d LNB_TX S2_RESET 3V_TU 12C_SCL4_TU 12C_SDA4_TU LNB_OUT SECRET LGElectronics inex opr TU_Q W_KR BR CO TWR6503 TU_Q m R6504 22 1I2C_SCL4 TU 1 I2C_SDA4 LG ELECTRONICS 12mils 24mils 3 3 3V_NORMAL RF_SWITCH_cTL_50 TU Ke TEE lt FE_DEMoD1_TS_ERROR mA MAX EFI TU L6503 BLM18PG121SN1D Y TU_Q N M W 1 23V_D_Demod 3V_TU IC6501 A AP2132MP 2 5TRG1 EP TU_Q N M W R652 Zou R2 1 8 ry 18 Ze GND SE R6528 2 ke 11K EN E ADJ R s29 RI 10K 3 6 Ri e VIN VOUT TU_Q N M W ae o 2A VOTRE sie TU_OQ N M W BAN61387601 222 hour 10v TU_Q N M W 1u Vout 0 6 1 R1 R2 CHB Max mA else Max gt Ka EI 3 3V_TU 1 8V_TU
47. M5 AG 610 K5 N2 Al A2 Ag All HYNIX_EMMC_8GB RSTN VDDF_1 VDDF_2 VDDF_3 VDDE 1C8100 3 KLM2G1HE3F B001 D U N U 2 2 H U Z D gi gt lt 9 c10 c12 c13 c14 D12 D13 D14 E12 E13 E14 K5 IC8100 4 THGBM5G7A2JBAIR REU_1 RFU RFU RFU_8 RFU_9 RFU_10 RFU_11 RFU_12 RFU_13 RFU_14 RFU_15 RFU_16 RSTN D12 D13 D14 El E2 E3 E12 E13 E14 H12 H13 H14 ER 32 312 313 314 K1 K2 K3 K12 E7 65 H10 K13 K14 Li L2 L3 L12 L13 L14 A O VO H U 2 gt H eh A M1 M2 N2 All A12 A13 A14 M3 MT M8 Mo Mio Mil Mi2 TOSH M13 Mia NL N3 ve SS Na N9 N10 N11 N12 N13 N14 PL P2 pa p9 Pil P12 P13 P14 MODEL DATE puock A ET LGE Internal Use Only THE N SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS SECRET ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR Ce ELEL TRONILS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC LGElectronics Copyright 2013 LG Electronics Inc All right reserved MODEL IDATE BLOCK SHEET OY Only for training and service purposes LGE Internal Use Only LG Life s Good CONTENT e 2013 Product line up and features Model naming and tool o
48. MI3 In the data of EDID bellows may be different by S W or Input In the data of EDID bellows may be different by S W or Input mode mode Product ID Product ID HEX EDID Table DDC Function HEX EDID Table DDC Function 0001 0100 Analog 0001 0100 Analog 0001 0100 Digital 0001 0100 Digital b Serial No Controlled on production line b Serial No Controlled on production line Month Year Controlled on production line ex Monthly 01 gt 01 Year 2013 gt 17 Year 2013 gt 17 Model Name Hex LGTV Model Name Hex LGTV Chassis MODEL NAME HEX Chassis MODEL NAME HEX LA33B 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 LA33B 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 e Checksum LG TV Changeable by total EDID data e Checksum LG TV Changeable by total EDID data Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes en 2 03 en 2 E HDMI 43 7D x DM E8 FC X HDMI2 43 6D x HDMI2 E8 EC x HDMI3 43 5D x HDMI3 E8 DC X Vendor Specific HDMI Vendor Specific HDMI INPUT MODEL NAME HEX INPUT MODEL NAME HEX HDMI 67 03 0C 00 10 00 B8 2D HDMI1 78 03 OC 00 10 00 80 1E 20 CO OE 01 4F 00 FE HDMI2 67 03 0C 00 20 00 B8 2D 0810 08 1019 10 28 10 38 10 HDMI3 67 03 0C 00 30 00 B8 2D Ge HDMI3 78 03 OC 00 3
49. NC CLK LGE Internal Use Only Audio Out Block Diagram E EE E EE cc TOR z SCART IC6000 DTV MNT_L R_OUT COMP1 AV1 DVL_L_IN_SOC ALI ADACI _ 5 SCART RO sur COMP1 AV1 DVI_R_IN_SOC AIN4_L_AADC OP AMP AIN4_R_AADC z z H JK4600 S JK501 a Me S 2 DVB only Poe rere rire err eee ieee KEE e SCART D a iz S m AOMCLK ee DU mosom AR oy S AUD_LRCK AOLRCK SIE E 4P WAFER AOBCK 1C8101 Ha SPEAKER_L JK4600 DVB only ste_spa 2C SOA1 Ba 13 sr ener r AAA a 12C_SCL1 ES ISTB_SCL AMP_RESET_N WOOFER OPCTRL4 ee ___ gt AMP_MUTE M13 MT5398 EE MICOM TUNER_SIF MPXP e SIDE_HP_MUTE M k ALO ADAC HP_LOUT HP_ROUT 1C6100 oi TPA6138A2PWR MA eno prove HP AMP JK3700 SPDIF_OUT g ASPDIFO JK3602 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only HDMI DDC_SCL_1_SOC gt DDC_SDA_1_SOC gt HDMI_ARC TMDS Link 8bits IER HDMI DDC_SCL_2 JACK DDC SDA 2 JACK O J TMDS Link 8bits 2 O m HDMI2 DDC_SCL_3_JACK DDC_SDA_3_JACK TMDS Link 8bits HDMI3 Q3001 HDMI_CEC RENESAS MICOM X tal 32 768kHz WOL_CTL Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only USB WIFI M REMOTE
50. North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com D Life s Good LED TV CHASSIS LA33B MODEL 50LN5750 5710 50LN5750 UH 5710 UI CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL P NO MFL67727557 1305 REV01 Printed in Korea CONTENTS el RL EC 2 PRODUCT SAFETY E 3 SPECIFICATION WE A ADJUSTMENT INSTRUCTION c oocooocccccccnncnnnnnnnnnnnnnnnoncnnnnnnnnnnonnnnnnnnnnnns 13 EXPLODED VIEW geseet ee iii 23 SCHEMATIC CIRCUIT DIAGRAM connocccccccccccccccnccnccncnnnnnnnnnnnnnnnnnnnannnnnnnnnnnes Copyright O 2013 LG Electronics Inc All rights reserved De 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 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 An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line Use a transformer of adequate power rating as this protects the t
51. S _ xvYCC off HDMI EDID 2D_8bit_PCM US _xvYCC off IP number 12 12 2 2 0x00 FF 1E 0x01 AO DA EM A3 26 Connect SET gt LAN Port PC gt LAN Port 0x02 00 45 61 40 80 0x03 01 80 H 38 20 0x04 00 66 50 Bo 30 0x05 84 oo 00 oo 34 0x06 0x07 4 3 2 LAN PORT inspection PING TEST 0x00 0x01 0x02 30 05 03 05 5A 02 oo 00 57 80 01 58 05 1 Play the LAN Port Test Program 0x03 0x04 16 51 2c 20 oo 28 40 55 00 63 Connect each other LAN Port Jack 0x05 Play Test F9 button and confirm OK Message 0x06 00 00 00 00 Remove LAN CABLE 0x07 00 00 oo 00 2 3 4 PingTest roms oma IP 4242 22 int can E A lu D sre St ES a A O 4 4 EDID Download 4 4 1 Overview It is a VESA regulation A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input It is a realization of Plug and Play 4 4 2 Equipment Since embedded EDID data is used EDID download JIG HDMI cable and D sub cable are not need Adjust remocon 4 4 3 Download method 1 Press Adj key on the Adj R C Select EDID D L menu By pressing Enter key EDID download will begin If Download is successful OK is display but If Download is failure NG is displayed 5 If Download is fail
52. Short Crack Copyright 2013 LG Electronics Inc All right reserved _ 62 83 Only for training and service purposes LGE Internal Use Only Appendix Exchange T Con Board 2 Abnormal Power Section Abnormal Power Section Solder defect Short Crack F ee k ees V m Solder defect Short Crack Abnormal Display GRADATION Noise GRADATION Copyright 2013 LG Electronics Inc All right reserved 63 83 Only for training and service purposes LGE Internal Use Only Appendix Exchange PSU LED driver _ 3 No Light Dim Light Dim Light Dim Light ke No picture Sound Ok Copyright 2013 LG Electronics Inc All right reserved 64 83 Only for training and service purposes LGE Internal Use Only Appendix Exchange the Module 1 Panel Mura Light leakage Panel Mura Light leakage Press damage Wi Crosstalk Press damage Crosstalk Un repairable Cases In this case please exchange the module Press damage Copyright 2013 LG Electronics Inc All right reserved 65 83 Only for training and service purposes LGE Internal Use Only Appendix Exchange the Module 2 Vertical Block Vertical Line Vertical Block Source TAB IC Defect Source TAB IC Defect Source TAB IC Defect Horizontal Block 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 Horizontal B
53. Side Top and Bottom HDTV 720P 3 1920 1080 33 75 60 00 74 25 2D to 3D Side by Side Top and Bottom HDTV 10801 4 1920 1080 33 72 59 94 74 176 2D to 3D Side by Side Top and Bottom HDTV 10801 Copyright O 2013 LG Electronics Inc All rights reserved 8 LGE Internal Use Only Only for training and service purposes 5 3 HDMI Input PC DTV No Resolution H freq kHz V freq KHz Pixel clock MHz Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA Xx 2 720 400 31 469 70 08 28 32 DOS O 3 640 480 31 469 59 94 25 17 VESA VGA O 4 800 600 37 879 60 31 40 00 VESA SVGA O 5 1024 768 48 363 60 00 65 00 VESA XGA O 6 1152 864 54 348 60 053 80 002 VESA O 7 1360 768 47 712 60 015 85 50 VESA WXGA Xx 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 1920 1080 67 5 60 148 5 HDTV 1080P O DTV 1 720 480 31 50 60 27 027 SDTV 480P 2 720 480 31 469 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 10801 6 1920 1080 33 72 59 94 74 176 HDTV 10801 7 1920 1080 67 500 60 148 50 HDTV 1080P 8 1920 1080 67 43 59 94 148 352 HDTV 1080P 9 1920 1080 27 000 24 000 74 25 HDTV 1080P 10 1920 1080 26 97 23 97 74 176 HDTV 1080P 11 1920 1080 33 75 30 000 74 25 HDTV 1080P 12 1920 1080 33 716 29 976 74 176 HDTV 1080P Copyright 2013 LG E
54. T ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A Copyright 2013 LG Electronics Inc All right reserved Only or training and service purposes nteral LDO Capacitor SYMBOL MARK OF THE SCHEMETIC SECRET LGElectronics DATO DATI veco_1 02 vecg_3 vecg_4 vecg_5 IC8100 H26M31002GPR IYNTX_EMMC_4GB DUMMY_1 DUMMY_2 DUMMY_3 DUMMY_4 DUMMY_5 DUMMY_6 DUMMY_7 DUMMY_8 DUMM DUMMY_10 DUMMY_11 DUMMY_12 DUMMY_13 34 y_15 DUMMY_16 Y Lo ELECTRONICS c10 EMMC RESET_BALL EMMC_CLK_BALL A3 AS B2 B3 B4 B5 B6 M6 M5 AG AT ES E9 J5 K6 K K10 K5 M4 N4 P3 DATO DATI DAT2 DAT3 DATA DATS veco_1 vecg_2 vecg_3 IESLDO T THGBM5G5A1JBAIR BS vecg_4 vecg_5 VSsSQ_l VSSQ_2 VSSQ_3 VSSQ_4 VSSQ_5 TOSHIBA_EMMC_4GB SAMSUNG_EMMC_4GB K10 EMMC_8GB TOSH DATO part DAT2 DAT3 DATA DATS DAT6 DATT A U N U z z h x H Z T 1C8100 2 H26M21001ECR 6G Bal SAMSUNG_EMMC c13 c14 Di D2 D3 D4 D12 D13 D14 El E2 E3 E12 E13 E14 312 313 314 KL K2 K3 K12 K13 K14 Li L2 L3 112 113 114 Mi M2 M3 m7 M8 Mo M10 Mil Mi2 M13 Mi4 NL N3 ve ge Na N11 N12 N13 N14 ER P2 pa p9 pil P12 P13 P14 AS B2 B3 B4 B5 B6 M6
55. TL Re 3 0 0 0 POWER_ON OFF2_1 P31 T103 T003 INTP4 5 P20 A O AVREFP HOL WIFI_PONER_OM 1 wees P75 KR5 INTP9 SCKO1 SCLO1 P21 A 1 AVREFM POWER_ON OFF2_2 IRI 6 RSF100GEAFB 1 ve P74 KR4 INTP8 SI01 SDAO1 7 P22 A 2 ADMI_CEC MODEL1_OPT_1 P73 KR3 5001 g MECOMS LEAD SAU P23 ANI3 POWER_ON OFF2_3 POWER_ON OFF2_2 MODEL1_oPT_4 P72 KR2 S021 P24 A 4 POWER_ON OFF2_3 MODEL1_oPT_o P71 KR1 S121 SDA21 P25 A 5 POWER_ON OFF2_4 EYE_SDAL k SE SIDE_HP_MUTE P70 KRO SCK21 SCL21 P26 A 6 EYE_SCL mo 1_OPT_3 I P30 INTP3 RTC1HZ SCK11 SCL11 P27 A Ji CAM_PWR_ON_cMD OA ou zu on emp MODEL1_OPT_2 SOC_RESET S A a w ojojo alojo vo MICOM MODEL OPTION alol Eala olola s ol R E E ci H ALN AI z ojala A Al O a 4 NINN HH ALAIN of any o vi NIE NIT NP li zl Cl Oil ss ge MICOM MODEL lalo o o ale alo allj olala x xfo E HI Zl bai OM HH bi ol pi NM H N H S R O N A H O Di NEN RE SNI AEN MY x On ei NIN BH OTN lt ajoj ajolal alaja Alo Saena a 2 H a H N x elle MODEL_OPT_1 TACT_KEY TOUCH_KEY Reedy EoE saupienset El x z elo o olola Sead H S m ola SE ER SH wo Aj n x MODEL_OPT_2 LCD OLED PDP Need to Assign ADC port 5 o a ola lt A w Oy Oy Ay NTS MopEL_opt_3 tRwafer 12 15 1r_water 10pin ready for sample set e A a x P60 UZO INTP6 ad H 1xD1 A n MODEL_OPT_4 M13 H13 H a A TESCO FL 32 REFP A APEERE IEA itis eg R5F100GEAFB 30 31 REEM PA P71 KR1 S P70 KRO SI e Woa a a P P30 INTP3 RT N17 SS age BS a ZS 1 E E fad
56. TRONICS BLOCK SHEET Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only oP Di SPDIF OUT SECRET ECRET Lc ELECTRONICS NUFATURES SPECFI IN THE SYMBOL Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only SECRET ECRET Lc ELECTRONICS NUFATURES SPECFI IN THE SYMBOL Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 5V_ST_WAKE 3 3V_NORMAL em es Rani 10us 10uF o P4102 v G KEY1 ON 10v 12507WR 08L IFI WIF R4114 100 KEY2 A Sp Ka Seed ne ei ee ee Vic Ce SMAW200 H12S2 3 3V_NORM 14113 1 120 ohn M_REMOTE c4121 T 0 luF R4125 1 LEDR L Place Near Micom WIFI zw R4135 100 T ars AR4100 M_REMOTE 1 0 0 G I LOGO_LIGHT I wret_pe E 1 16W LOGO_LIGHT e M_REMOTE_RX 1K 04100 RADIA Dee Toco niont MMBT3904 NXP E M_REMOTE_TX M_RFModule_RESET cts M_REMOTE opt C3123 aner 47pF 50V _ REMOTE WOL ETH_POWER_ON R4130 WIFI WOL WIFI_POWER_ON THE ZN SYMBOL MARK OF THIS SCHEMETI
57. UART USB_DM1 USB1 USB_DM_P2 gt 5V_USB 1 USB_DP_P2 USB_DP1 GP1043 USB_OCD1 OCP EIOS USB_CTL1 USB_DM2 USB2 sv use 2 USB_DM_P1 SS USB_DP_P1 USB_DP2 E GP1042 USB_OCD2 TCON12 USB_CTL2 OCP USB_DM_Po USB_DP_P0 USB_DP3 GP1044 USB_OCD3 ADIN2_SRV is WIFI_DM USB_WIFI USB_DP_P3 WIFI_DP E U1RX M_REMOTE_RX U1TX M_REMOTE_TX ADINA_SRV M_RFModule_RESET Motion Remote 8 a OPCTRL49 TS OOOO Receiver CTS OPCTRL50 UOTX Soc_TX Pi S zi NEE wafer RENESAS MICOM Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Tuner Cl Block Diagram TD E 3 3V_D_ Demod j 1 8_TU 3 3V_S2_DEMOD 32 1 2 FO d 9 3 3V_TUNER 5 y 1 8V_TUNER 7 33KQ Q 1 23V_S2_DEMOD 30 LNB_TX S2_F22_OUTPUT 33 LNB_OU a S2_SCL 34 222 gt S2_SDA 35 12C_SCL4 12C_SDA4 eee TU_RESET1 SLC 3 33Q 33 Q SDA 4 IC2_SDA6 IC2_SCL6 ERROR 16 FE_DEMOD1_TS_SYNC SYNC 17 FE DEMOD1 TS VAL Geer e FE_DEMOD1_TS CLK FE_DEMOD1_TS_DATA 0 7 DO 7 20 27 S2 RESET S2_RESET 31 GE IF_P ADCINP_DEMOD gt IF_N ADCINN DEMOD T C_DIF N 11 TUNER_SIF for T2 C S TU_CVBS for Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 10 TONECTRL 2 LNB LNB 1C6900 7ISCL A8303SESTR TB 8 MTK_A2 AP6 SCL3 ARG SDA3 AG24 ADING_SRV AF
58. Y80001A 2ND OTR387500AA AUD_LRCH 15401 BLM18PG121SN1D EP GND AGND_PLL 00 nn PGNDIA PVDD1A PVDD1B VDD_PLL DGND_PLL THERMAL 41 AUD_LRCK scx R5402 100 e vw OO A DO Gu HM pp R5403 100 Ic5400 NTP7513 Ox54 TEA A a 8 3 3V_NORMAL a A b sa E AMP_MUTE_MICOM 2 R5401 5 YoK al R5405 100 MONITOR_O AMP_MUTE_MICOM AMP_MUTE NXP UTE_MICOM AMP_MUT DI PWR_DET MONITOR_1 MONITOR_2 PGND2B PVDD2B PVDD2A OUT1B R5412 12 R5407 R5414 12 12 PGND1B BST1B VDR1 VCC5 AGND VDR2 BST2A PGND2A OUT2A R5409 SR5413 12 12 Audio_Coil_ABCO R5415 5 1K R5416 LPH6045T 100M Audio_Coil_ABCO gt For fixing AC OFF POP noise 32 POLA ROW model gt 32 POLA ROW LPB s 3 5st drop time is very HE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE A Copyright 2013 LG Electronics Inc All ri
59. _DATA SPI_CLE PWM2 OPwWM1 OPWMO sD_DO sD_D1 SD_D2 LED_PWM1 LED_PWMO OPCTRL11 OPCTRL10 OPCTRLO OPCTRL8 OPCTRL7 OPCTRL TRLS RL4 RL3 RL2 RL1 AVDD10_LDO AN16 AVDD10_ELDO NORMAL R184 4 7K M_REMOTE_TX M_REMOTE_RX O EMMC_CMD CO FE_LNA_Ctr11 CO FE_LNA_ctrly Ke DATA 2 7 DATA 7 DATATE DATATS ER MMC_DATAT4 PER EMMC_DATAT31 CAM_SLIDE_DET B23 DATATZ R188 4 7K WOL ETH_POWER_ CAM_SLIDE_DET EMMC_DATA 1 OPT 3 3V_NO DATA O 3 3V_NORMAL 2189 opnrss Tok R186 OF ORESET SOC_RESE a A sts en ci 010043 3V_NORMAL od D100 AT STB_SDA enen ac ane PMVASXP SG 4 71 100v E S z WRITE P30 ES FE_DEMOD1_ 0 7 N32 a R27 lt 1 FE_DEMOD1_TS_CLK EEFE 726 EMOD1_TS_ T DEMODI_TS_DATAT Se DEMODI_TS_DATAT31 Se DEMODIZTS EXTERNAL ae DEMODI_TS DER DEMODI_TS Se DEMODI_TS R29 lt lt FE_DEMOD1_TS SE lt FE_DEMOD1_TS_VAL gt PCM_REG O PCM_CE1 lt MT5398_TS_SYNC CI SLOT gt gt PCM_WE gt PCM_OE M31 M27 L27 us M30 130 133 132 TO PCM R177 K27 4 7K gt PCM_IOWR OPT R179 PWM_DIM2 PWM_DIM2 O RST_HUB MART 7 CO smart MART ARD_PWR_ A SMARTCARD_R C
60. ard Row Interleaving Column Interleaving 74 175 74 25 Side by side Top and Bottom 5 5 3D HDMI PC Input No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode 1 1024 768 48 363 60 004 65 000 2D to 3D Side by Side Top amp Bottom 1360 768 47 712 60 015 85 500 1920 1080 67 50 60 00 148 50 Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 10 LGE Internal Use Only 5 6 3D HDMI Input 1 3 No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode 1 640 480 62 938 63 59 94 60 50 35 50 4 2D to 3D Side by side 31 469 315 50 35 50 4 Top and Bottom Checkerboard Row Interleaving Column Interleaving Frame Sequential 25 175 25 2 2D to 3D Side by side Top and Bottom 2 720 480 62 938 63 59 94 60 54 001 54 054 2D to 3D Side by side 31 469 31 5 54 001 54 054 Top and Bottom Checkerboard Row Interleaving Column Interleaving Frame Sequential 27 00 27 027 2D to 3D Side by side Top and Bottom 3 1280 720 89 91 90 59 94 60 148 351 148 5 2D to 3D Side by side 44 96 45 148 351 148 5 Top and Bottom Checkerboard Row Interleaving Column Interleaving Frame Sequential 74 17 74 25 2D to 3D Side by side Top and Bottom 4 1920 1080 67 432 67 5 59 94 60 148 35 148 5 2D to 3D Side by side 33 72 33 75 148 35 14
61. can select one of 2 Test pattern ON OFF Default is inner ON By selecting OFF you can adjust using RF signal in 216 Gray pattern LGE Internal Use Only EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by AA 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 X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer AQ Stand Base Stand Body Copyright 2013 LG Electronics Inc All rights reserved 23 LGE Internal Use Only Only for training and service purposes EAX6479700 EAX6487210 J J LD33B LA33B 1C100 1 IC8100 3 3V_NORMAL NVRAM E ANENE EF NVRAM_ST NVRAM_RENESAS Write Protection SE a x i 12C_SDA1 A EMMC pins share pins
62. ddress Check 5 5 1 Using RS232 Command Command Set ACK Transmission A l Set ID 20 Cr O K x or N G 5 5 2 Check the menu on in start IN START ADC Data Power Off Statu System 1 System 2 Test Option Spread Spectrur 10 Sync Level 11 Stable Count 12 SDP Server Se 13 Network Error 14 ANTENA LGE Internal Use Only 5 6 3D pattern test Only for 3D models 5 6 1 Test equipment 1 Pattern Generator MSHG 600 or MSPG 6100 HDMI 1 4 support 2 Pattern HDMI mode model No 872 pattern No 83 5 6 2 Test method 1 Input 3D test signal as Fig 1 O K Fig lt HDMI Mode 8724 Pattern No 83 gt 2 Press OK key as a 3D input OSD is shown 3 Check pattern as Fig2 without 3D glasses 3D mode without 3D glasses OU IK Fig 2 lt OK in 3D mode without 3D glasses Fig 3 lt NG in 3D mode without 3D glasses Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 20 5 7 HDMI ARC Function Inspection 5 7 1 Test equipment Optic Receiver Speaker MSHG 600 SW 1220 7 HDMI Cable for 1 4 version 5 7 2 Test method 1 Insert the HDMI Cable to the HDMI ARC port from the master equipment HDMI1 BI 2 Check the sound from the TV Set 3 Check the Sound from the Speaker or using AV amp Optic TEST program It s connected to MSHG 600 Flow Line
63. dio 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 3 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 right reserved 72 83 _ Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Error D Function error_ No response in remote controller Established symptom key error date i Revised Content Remote controller operation checking method date lt ALL MODELS gt 1 2 Key MI 8 ou Ops eves IE E LE d Checking order 1 2 Check IR cable condition between IR amp Main board 3 Check the st by 3 3V 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 All right reserved z 73 83 _ Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual E 7 7 7 Revi Sequence of the Vcom adjustment am 1 Case E LCD module change E T Con board change 2 Equipment E Service Remote controller 3 Adjust sequence E Press the adj key selec
64. e 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 whenever 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 clip 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
65. echnician 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 AC 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 MQ and 5 2 MQ When the exposed metal has no return path to the chassis the reading must be infinite An other abnormality exists that must be corrected before the receiver is returned to the cust
66. ed Only for training and service purposes 212 9 2 Manual White balance Adjustment 9 2 1 Adj 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 10cm 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 9 2 2 Equipment 1 Color Analyzer CA 210 NCG CH 9 WCG CH12 LED CH14 2 Adj Computer During auto adj RS 232C protocol is needed 3 Adjust Remocon 4 Video Signal Generator MSPG 925F 720p 216 Gray Model 217 Pattern 78 9 2 3 Adjustment 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 10cm of the surface 3 Press ADJ key gt EZ adjust using adj R C gt 6 White Balance then press the cursor to the right KEY When KEY P is pressed 216 Gray internal pattern will be displayed 4 One of R Gain G Gain B Gain should be fixed at 192 and the rest will be lowered to meet the desired value 5 Adj is performed in COOL MEDIUM WARM 3 modes of color temperature If internal pattern is not available use RF input In EZ Adj menu 6 White Balance you
67. ed Only for training and service purposes LGE Internal Use Only 3 5V_ST_WAKE VDD3V3 BLM18 BLM18 5V N R501 1 8K WOL_CTL MMBT3904 NXP HE ZN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes SECRET LGElectronics 1 2V_MTK_CORE 1 2V_MTK_CORE 1 2V_MTK_AVDD 1504 BLM18PG121SN1D AIS C518 IT POWER_ON OFF1 AVDD_3358 DO 19 00 10500 out EN e512 caro luF DR er JS 3 3V_NORMAL at Kuer 1505 BLM18PG121lN1D 531 Be BOTTOM DECAP FOR SOC HIDDEN gt UCC DECAP FOR SOC Rework 1 2V_MTK_CORE ypp3y3 e 5 E a 1 LAN_JACK_POWER LG ELECTRONICS TP501 TETOS LGE2122 A2_M13 MODEL n DATE BKI DEET LGE Internal Use Only DDR_512MB_SS A Sie E SSS eh Sa Ss SS SS DDR_512MB_SS Ic701 Ic703 K4B4G1646B HCKO K4B4G1646B HCKO IC105 LGE2122 A2_M13 HH Hi LA ba Hh e sh IC105 LGE2122 A2_M13
68. ern 65 Resolution 1080p Comp1 MSPG 925FA model 225 pattern 65 Resolution 1080p RGB MSPG 925FA model 225 pattern 65 Pattern Horizontal 100 Color Bar Pattern Pattern level 0 7 0 1 Vp p MSPG 925FA model 209 9 1 2 Adjust method 8 1 2 1 ADC 480i 1080p Comp1 RGB 1 Check connected condition of Comp1 RGB cable to the equipment 2 Give a 480i Mode Horizontal 100 Color Bar Pattern to Comp MSPG 925FA gt Model 209 Pattern 65 3 Change input mode as Component1 and picture mode as Standard 4 Press the In start Key on the ADJ remote after at least 1 min of signal reception Then select 7 External ADC And Press OK or Right Button for going to sub menu 5 Press OK in Comp 480i menu 6 Give a 1080p Mode Horizontal 100 Color Bar Pattern to Comp MSPG 925FA gt Model 225 Pattern 65 7 Press OK in Comp 1080p menu 8 Perform 6 and 7 in RGB PC 9 If ADC Comp is successful ADC Component Success is displayed If ADC calibration is failure ADC Component Fail is displayed 10 If ADC calibration is failure after rechecking ADC pattern or condition retry calibration 11 If ADC RGB calibration is successful ADC RGB Success is displayed If ADC calibration is failure ADC RGB Fail is displayed 12 If ADC calibration is failure after recheck ADC pattern or condition retry calibration Copyright 2013 LG Electronics Inc All rights reserv
69. error_Video error video lag stop Content TUNER checking part a EY lt ALL MODELS gt Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual symptom A Video error_Color error Adjustment Test pattern ADJ Key ay Il Test Pattern EZ ADJUST Pattern Control CLIN Tool Option e Tool Option be A Tool Option A Tool Option4 Tool Option5 Tool Option6 SI d G Option Pattern Control d Red 9 Country Group ADC Calibration Press to hide OSD White Balance 7 5 z d E d y 5 o 0 E 5 SE Sz EH 7 8 9 e de 3 Mo o D E m ke 99 OAT Oi c Ka 0 0 4 0 0 0 20 Point WB Test Pattern d 2 Sub BIC d Test Pattern P Gamma Patter Control J Blue _ Ext Input Adjust Press O to hide OSD Press to hide OSD 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 DAD DC EE unn A Video error Classification of MODULE or Main B D right reserved S Only for training and service purposes 01 00 LGE Internal Use Only Appendix Exchange T Con Board 1 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
70. ess Established B SA o oO error a ma o symptom Sch No OTE A17 Check DC Power on gt gt by pressing Power Key Power LED On Remote control Stand By Red Operating white Check Power cord was inserted properly Check ST BY 3 5V Replace Power B D Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Revised date Check Power Replace On High Power B D LGE Internal Use Only Standard Repair Process symptom Check outlet Check A C cord Check for all 3 phase power out Fix A C cord amp Outlet and check each 3 phase out Please refer to the all cases which can be displayed on power off mode Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Off when on off while viewing power auto on off Check Power Off Mode If Power Off mode is not displayed Check Power B D voltage Xx Caution Check and fix exterior of Power B D Part Revised date Established B Power error ENE ena N Replace Main B D gt Replace Power B D Status Power off List Explanation Normal Abnormal ROFF_REMOTEKEY r off by REMOTE CONTROL ROFF_OFFTIMER r off by OFF TIMER ROFF_SLEEPTIMER r off by SLEEP TIMER ROFF_INSTOP r off by INSTOP KEY
71. for training and service purposes gt A25 Check and replace speaker and connector Check audio B Voltage 24V Connect and check other external device Check and fix external device LGE Internal Use Only Standard Repair Process D General Function Problem Established LCD TV ele date Seel Remote control amp Local switch checking 10 13 1 Remote control R C operating error Replace Main B D gt A27 Check R C itself Sls a Sa Check B 3 5V Y Check IR Operation 9 i EEN i On Main B D Output signal H Connector solder p g Check R C Operating Check 3 5v on Power B D Repair Replace When turn off light 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 Explain the customer cause is interference from light in room Replace R C Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process 7 Established Eror D Function error bs MENS symptom External device recognition error Revised date Check technical information Fix information S W Version Check and fix external device cable Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes ernal Input a information Component Fix in DVI Optical accordance ecognition error with technical information Replace Main B D Replace Main B D LG
72. ght reserved Only for training and service purposes SYMBOL MARK OF THE SCHEMETIC SECRET LGElectronics fast Y Lo ELECTRONICS om R5417 R5418 5 1K SPK_L SPEAKER_L PK_L WAEER ANGLE SPK_L had G Ka SPK_R had SPK_R e SPK_R SPEAKER_R MODEL DATE BET SHEET LGE Internal Use Only THE SYMBOL MARK SPECIAL FEATURES I HP_OUT_H13 EARPHONE AMP et IC6100 TPA6138A2 OF THIS SCHEMETIC DIAGRAM INCORPORATES PORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPO Copyright 2013 LG Electron ENTS IN THE A ics Inc All right reserved Only for training and service purposes SYMBOL MARK OF THE SCHEMETIC A HP_OUT_MTK INR HP_OUT c6104 c6100 180pF HP_OUT Lut R6100 R6106 AB our 10K 43K op our INR HP_ROUT_MAIN R6103 1 c6108 33K 10pF OUTR HP_OUT_MTK es HP_OUT_H13 R6103 1 HP_RouT_amp lt 43K 3 3V_NORMAL GND_1 1 L T MUTE u 4 7K D 5 oneros SIDE_HP_MUTE e yes HP _OUT c6102 CN SECRET LGElectronics C6103 lur 10v HP_OUT_H13 eh 109 41 18pF oer HP_OUT_MT ol 6109 INL HP Eh 180pF HP_OUT c6101 R6101 luF INL _OUT aa 10K 19 our HP_LOUT_MAIN o 1 R6102 OUTL 10pF ie He Sur _MTK HP_OUT_H13 gt HP_LOUT_AMP 3 3V_NORMAL L6100
73. hod A22 viewing a Mae SOR EE POWER BOARD PIN voltage checking method A19 Checking method in menu when there is no audio EH C Audio error_No audio Normal video Voltage and speaker checking method when A25 there is no audio C Audio error_Wrecked Voltage and speaker checking method in case of A25 audio discontinuation audio error EE Remote controller operation checking method A27 controller key error D VCOM Adjustment Sequence of the Vcom adjustment A28 Copyright 2013 LG Electronics Inc All right reserved 54 83 d Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Error E o i A Video error_No video Normal audio ES ano comem TT ewe EZ ADJUST Tool Option Tool Option2 Tool Option3 e Tool Option4 R Gain Tool Option5 G Gai Tool Option6 aan Tool Option7 B Gain Country Group R Cut ADC Calibration G Cut B Cut 20 Point WB Test Pattern Test Pattern g t Backlight _V Com Reset P Gamma _ Ext Input Adjust ER sl E 71 E MN O Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 9 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 right reserved SS 55 83 _ Only for training and service purposes LGE Internal Use O
74. ics Inc All right reserved Only for training and service purposes Cable Cable normal LGE Internal Use Only Standard Repair Process i Established SH A Video error ga 2012 11 20 symptom Vertical Horizontal bar residual image Revised date light spot external device color error Revised date Vertical Horizontal bar residual image light spot Module gt A8 CG A10 A11 Check color condition by input Check external CG A28 External Input device Component connection RGB condition HDMI DVI replace Link Replace Main B D Zz Cable Eise ed For LGD panel Replace Request repair Replace Main B D A12 module for external device Check Test pattern For other panel External device screen error Color error Check screen condition by input External Input a N Check S W Version gt dek Component Connect other external RGB e device and cable Replace HDMI DVI Check normal operation of An B D Y External Input Component mponent RGB and HDMI DVI by ly S W Upgrade error connecting Jig pattern Generator Set top Box etc Request repair for external device dima N Connect other external 5 device and cable Reol See Check normal operation of epiace External Input Component Main B D RGB and HDMI DVI by connecting Jig pattern L N ato et top Box e Copyright 2013 LG Electronics Inc NAT gh Only for training and service purposes LGE Internal Use Only Standard Repair Proc
75. lectronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only 5 4 3D HDMI Input 1 4b No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode 1 640 480 62 938 63 59 94 60 50 35 50 4 Side by side Top and Bottom 31 469 31 5 50 35 50 4 Checkerboard Row Interleaving Column Interleaving Frame Sequential 25 175 25 2 2 720 480 62 938 63 59 94 60 54 001 54 054 Side by side Top and Bottom 31 469 31 5 54 001 54 054 Checkerboard Row Interleaving Column Interleaving Frame Sequential 27 00 27 027 Side by side Top and Bottom 3 1280 720 89 91 90 59 94 60 148 351 148 5 Side by side Top and Bottom 44 96 45 148 351 148 5 Checkerboard Row Interleaving Column Interleaving Frame Sequential 74 17 74 25 Side by side Top and Bottom 4 1920 1080 67 432 67 5 59 94 60 148 35 148 5 Side by side Top and Bottom 33 72 133 75 148 35 148 5 Checkerboard Row Interleaving Column Interleaving Frame Sequential 74 17 74 25 Side by side Top and Bottom 5 1920 1080 53 946 54 23 976 24 148 351 148 5 Side by side Top and Bottom 26 973 27 148 351 148 5 Checkerboard Row Interleaving Column Interleaving 74 176 74 25 Side by side Top and Bottom 6 1920 1080 67 432 67 5 29 97 30 00 148 35 148 5 Side by side Top and Bottom 33 716 33 75 148 35 148 5 Checkerbo
76. lock Horizontal line Copyright 2013 LG Electronics Inc All right reserved 66 83 Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Error Established eon B Power error _No power Content Check front display LED ay Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Established B Power error Me power EE Content Check power input voltage and ST BY 5V ie O For 10 models there is no voltage out for st by purpose When st by only 3 5V is normally on Edge LED Check the DC 24V 12V 3 5V 24 Pin Power Board gt Main Board 35 3MAW200 H18S1 YEONHO a gt PDIM 1 PWM Dim 1 ats H E ENN rs E r 1 119 00 pic 00 17 Ez L DIMO_VS L DIMO_MOSI L DIMO_SCLK Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual noe Established symptom B Power error No power Content Checking method when power is ON 119 00 1 00 are Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes Check power on pin is high 24 Pin Power Board Main Board 35 SMAW200 H18S1 YEONHO 4 24V 12V 12V 17 L DIMO_MOSI 10 12 KO 16
77. mocon 4 Video Signal Generator MSPG 925F 720p 204 Gray Model 217 Pattern 49 Color Analyzer Matrix should be calibrated using CS 1000 5 1 3 Equipment connection Vendor Specific HDMI INPUT MODEL NAME HEX HDMI1 78 03 OC 00 10 00 B8 2D 20 CO OE 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 78 03 OC 00 20 00 B8 2D 20 CO OE 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 78 03 OC 00 30 00 B8 2D 20 CO OE 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 HDMI2 HDMI3 Copyright O 2013 LG Electronics Inc All rights reserved Only for training and service purposes 16 Color Analyzer wt Y RS 232C Ee Computer RS 232C Y RS 232C Pattern Generator Signal Source If TV internal pattern is used not needed LGE Internal Use Only 5 1 4 Adjustment Command Protocol 1 RS 232C Command used during auto adj RS 232C COMMAND Explanation CMD DATA ID Wb 00 00 Begin White Balance adj Wb 00 ff End White Balance adj internal pattern disappears 2 Adjustment Map Adj item Command Data Range lower caseASCII Hex CMD1 CMD2 MIN MAX Cool R Gain j g 00 co G Gain j h 00 co B Gain j i 00 co Medium R Gain j a 00 co G Gain j b 00 co B Gain j CG 00 co Warm R Gain j d 00 co G Gain j e 00 co B Gain j f 00 CO 5 1 5 Adjustment method 5 1 5 1 Auto WB calibrati
78. nc All right reserved 29 83 Only for training and service purposes LGE Internal Use Only WIFI Built in assy feature Block diagram DCDC EUP301 1 2V 0 6pin 1 25mm YOE 3 3V 1 2V RX TX Switch Antenn lt a USB DM3030 2 4G 5G eae BCM43236B RX TX lt gt Switch AERE DM3030 2 4G 5G Copyright 2013 LG Electronics Inc All right reserved SS 30 83 Only for training and service purposes LGE Internal Use Only WIFI Built in ass y Specification e Frequency Band Draft 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 33 802 11a Radio 5 GHz LN 150 5 250GHz 5 725 5 850GHz e 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 11b 17 2 dBm llg 14 2 dBm 54Mbps Each chain lln 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 11 Mbps Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 2412 2462MHz Ch1 Ch11 2412 2462MHz Ch1 Ch11 2412 2472MHz Ch1 Ch13 2412 2484MHz Ch1 Ch14 31 83 gt BPSK 69 Mbps QFSK 12 13Mbps 16 QAMA4Mbps 6
79. nd 65 10 of relative humidity if there is no specific designation 4 The input voltage of the receiver must keep 100 240V 4 2 MAC Address ESN Key and Widevine Key download 4 2 1 Equipment amp Condition 1 Play file keydownload exe 4 2 2 Communication Port connection 1 Key Write Com 1 2 3 4 and 115200 Baudrate 50 60Hz 2 Barcode Com 1 2 3 4 and 9600 Baudrate 5 At first Worker must turn on the SET by using Power Only key 4 2 3 Download process 6 The receiver must be operated for about 5 minutes prior to the adjustment when module is in the circumstance of over 15 C 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 C it should be placed in the circumstance of above 15 C for 3 hours 1 Select the download items 2 Mode check Online Only 3 Check the test process US Canada models DETECT gt MAC_WRITE gt WIDEVINE_WRITE Korea Mexico models DETECT gt MAC_WRITE gt WIDEVINE_WRITE 4 Play START 5 Check of result Ready Test OK or NG 6 Printer out MAC Address Label Xx Caution When still image is displayed for a period of 20 minutes or longer especially where W B scale is strong 4 2 4 Communication Port connection 1 Connect PCBA Jig gt RS 232C Port PC gt RS 232C Digital pattern 13ch and or Cross hatch pattern O9ch there P
80. nly Standard Repair Process Detail Technical Manual Error S Established 2012 11 30 maer A Video error No video Audio Content Power Board voltage measuring method eee Edge LED Check the DC 24V 12V 3 5V 24 Pin Power Board lt Main Board 3435 SMAW200 H18S1 YEONHO Power on oo w ES H a 100015 Ric UY NI WKKRLKK 24 7 9 V 2V V L DIMO_MOSI Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes e owo PDIM 1 PWM Dim 1 PDIM 2 PWM Dim 2 L DIMO_VS L DIMO_SCLK LGE Internal Use Only Standard Repair Process Detail Technical Manual Error a E Established symptom A Video error_Video error video lag stop TUNER input signal strength checking method da IO lt ALL MODELS gt DTVRA M8 Ao HSB Ye T NTV2A 6 1 SBS HD t Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Detail Technical Manual Error i i Established symptom A Video error_Video error video lag stop Content LCD TV Version checking method Revised date 1 Checking method for remote controller for adjustment Model Name BOOT Version PWM min max StrDuty 5 EDID RGB HDMI Chip Type Version MAC Address IP Address Widevine ESN Num HDCP1 4 HDCP2 0 RF Receiver Version Wi Fi Magic Search Camera Ver Null A
81. o data skew and better EMI margin e Fewer lines than mini LVDS e Slim PCB design Copyright 2013 LG Electronics Inc All right reserved Se 8 83 Se Only for training and service purposes VCC Figure1 Topology LOCK Table 1 Example of FHD 120Hz TV m FHD 10bit 960Ch 60Hz 120Hz 240Hz Transmission vil 12 12 24 Bandwidth 0 84Gbps 1 68Gbps 1 68Gbps LGE Internal Use Only EPI Interface mini LVDS vs EPI Comparison What to change HF mini LVDS LCM T con to S Driver IC HF mini FHD 10bit eoz mr zm 60pin 60pin 80pin Difficult to upgrade bandwidth limit Multiple number of wires needed for higher bandwidth O EPI Embedded clock P to P Interface FHD 10bit EPI 240Hz 720ch No of Signal 32 70pin Connector 2ea 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 FHD 120Hz Bandwidth Capability FHD 120Hz 10Bit 594Mbps 36Lines gt 1 65Gbps 12Lines FHD 240Hz 10Bit 594Mbps 72Lines gt 1 25Gbps 32Lines Copyright 2013 LG Electronics Inc All right reserved 9 83 CS Only for training and service purposes LGE Internal Use Only EPI Interface mini LVDS vs EPI HF mini LVDS Topology Pp Protocol S EE EE EE EE ER AAA Pa Y Y e Multi Dro Features H
82. omer Copyright 2013 LG Electronics Inc All 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 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 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 S Good Earth Ground such as WATER PIPE CONDUIT etc To Instrument s O Q 0 15 uF exposed METALLIC PARTS Tee 1 5 Kohm 10W When 25A is impressed between Earth and 2nd Ground for 1 second Resistance must be less than 0 1 Q Base on Adjustment standard LGE Internal 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 unfore
83. on 1 Set TV in ADJ mode using P ONLY key or POWER ON key 2 Place optical probe on the center of the display lt need to check probe condition of zero calibration before adjustment 3 Connect RS 232C Cable 4 Select mode in ADJ Program and begin a adjustment 5 When WB adjustment is completed with OK message check adjustment status of pre set mode Cool Medium Warm 6 Remove probe and RS 232C cable W B Adj must begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 247 5 1 5 2 Manual adjustment 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 10cm of the surface 3 Press ADJ key gt EZ adjust using adj R C a 9 White Balance then press the cursor to the right KEY When KEY P gt is pressed 206 Gray internal pattern will be displayed 4 Adjust Cool modes i Fix the one of R G B gain to 192 default data and decrease the others If G gain is adjusted over 172 and R and B gain less than 192 Adjust is O K ii If G gain is less than 172 Increase G gain by up to 172 and then increase R gain and G gain same amount of increasing G gain iii If R gain or B gain is over 255 Readjust G gain less than 172 Conform to R gain is 255 or B gain is 255
84. oost 2 8V LDO 2 8V LDO TITPS61097 UPO108NEC5 28 UPO108NEC5 28 0T23 5 SCH C70 Bluetooth Receiver Bluetooth Remote control Copyright 2013 LG Electronics Inc All right reserved E 27 83 Only for training and service purposes LGE Internal Use Only 3 RF Pairing Un pairing Method Method1 If unpaired just press Wheel key If paired press Wheel key after unpairing Method 2 Repairing Press BACK button for 5 sec RF Pairing Press HOME button and BACK button at the same time for 5 sec RF Unpairing Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 28 83 e When do pairing the remote should make pairing request IR signal 0x29 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 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 BREA GH BAICH Introductions of 13Y WIFI built in assy Sat 1 Block diagram 2 Specification Copyright 2013 LG Electronics I
85. ort can some afterimage in the black level area 3 Adjustment items pa Esa e 3 1 Main PCBA Adjustments a Sestao Program 1 ADC adjustment ADC adjustment is OTP Auto ADC Eeee 2 EDID download HDMI Z5 4 2 5 Download 1 US Canada models 13Y LCD TV MAC Widevine ESN Key DTCP Key HDCP1 4 and HDCP2 0 X Remark Above adjustment items can be also performed in Final Assembly if needed Adjustment items in both PCBA and final assembly tages can be checked by using the INSTART Menu gt 1 ADJUST CHECK 13Y_L_MAC_WIDE_ESN_HDCP14_20 _DTCP_Model Name Ux LGEHQ ND gt Model name Select 3 2 Final assembly adjustment Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Tool option menu USB Download S W Update Option and Service only 2 Manual adjustment for ADC calibration and White balance 3 Shipment conditions Channel pre set 13 HDCP2 0 Key Write DTCP Key Write 4 2 6 Inspection In INSTART menu check these keys LGE Internal Use Only 4 3 LAN port Inspection Ping Test 4 3 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program 4 4 4 EDID DATA 4 4 4 1 2D_8bit_PCM U
86. ote control 1 System 2 Block diagram 3 Paring method Copyright 2013 LG Electronics Inc All right reserved 25 83 Only for training and service purposes LGE Internal Use Only UART gt V cos Remote RF Receiver TV Pairing Information Transmission Send to TV after Paired e Static Calibration Data Bypass only e Remote FW ver Save also in Receiver e BD_ADDR Save also in Receiver e Pairing Information Transmission Sequence e When it is paired the remote sends packets pairing success F W version BD_ADDR to the receiver e The receiver sends the pairing success packet to TV directly e F W version and BD_ADDR packets are just saved on the receiver e The receiver sends F W version or BD_ADDR packet to TV when it is required Motion Data Transmission e Period 7 5msec e Motion Data gyro accelerometer Voice Data Transmission e Period 10msec e Voice sampling 16khz 16bit Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes 26 83 LGE Internal Use Only 2 MR13 Block Diagram MPU 6150 Gyro ACC Invensense Key Button 4x4 12C ch1 IR Emitter1 CS IR Emitter2 SPI DC ch2 Codec ADC MIC Knowles UART 4 mode Only Power Management AAx 2 Battery DC DC B
87. p ay North America due to rating Xx Y 2 Applied model LA32B Chassis applied to CANADA and Cool 0 26940 002 0 27340 002 13 000K 0 0000 MEXICO Medium 0 285 0 002 0 293 0 002 9 300K 0 0000 a 5 2 2 Country Group selection Warm 0 313 0 002 0 329 0 002 6 500K 0 0000 1 Press ADJ key on the Adj R C and then select Country Group Menu 2 O S Module AUO CMI Sharp IPS 2 Depending on destination select US then on the lower Coordinate Country option select US CA MX Mode y Temp Auv Selection is done using KEY Cool 0 271 0 002 0 276 0 002 13 000K 0 0000 5 2 3 Tool Option inspection Medium 0 287 0 002 0 296 0 002 9 300K 0 0000 Press Adj key on the Adj R C then select Tool option Warm 0 315 0 002 0 332 0 002 6 500K 0 0000 Model Tool 1 Tool2 Tool3 Tool4 Tool5 Tool6 Tool7 32LN5700 UA UH 289 12305 33160 61725 4262 5193 8747 Standard color coordinate and temperature using Save aa 2339 13841 33160 61725 4262 5193 8747 CA 210 CH 14 by aging time i 1 Normal line LN5xxx LA6xxx LA7xxx LA8xxx 42LN5700 UA UH 292 45073 6536 61725 12326 1353 41131 Cool Medium Warm 47LN5700 UA UH 293 12305 33160 61725 12454 1353 41515 GP4 KS SCH x Y x Y x Y 50LN5700 UAJUH 294 12305 33160 61725 12454 1353 41515 in 271 270 285 293 313 329 55LN5700 UA UH 295 46609 6536 61725 12326 1353 41131 1 0 2 281 287 295 310 320 342 60LN5700 UA UH 32856 13841
88. ption New features Main PCBs Block Diagrams IIC Map Structure of TV set and connection of sub assy s New sub assy s Instruction of new sub assy s How to use tool Download 8 Adjust way of new features 9 Repair guide NO oO P Q N Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CONTENT 1 2013 Product line up and features Copyright 2013 LG Electronics ae All right reserved Only for training and service purp LGE Internal Use Only CONTENT 2 Model naming and tool option Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Model naming and Tool option Standard of 2013y Model Name Description of Tool Options foal option Copyright 2013 LG Electronics Inc All right reserved 7 6 83 Only for training and service purposes LGE Internal Use Only CONTENT 3 New features Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only EPI Interface Y EPI Embedded Point Point Interface w Features e Point Point topology Support 2 Pair option e CDR Clock Data Recovery e Bandwidth up to 1 85Gbps pair at FHD 120Hz 10 bit application e Lock signal cascading and feedback to T Con e Embedded Control Data Merits e Better reliability on common noise e N
89. purposes LGE Internal Use Only 2 HDCP 2 0 amp NETFLIX LI Y lt S HDCP High bandwidth Digital Content Protection Ur D CG I H 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 right reserved _ 35 83 es Only for training and service purposes LGE Internal Use Only 3 DTCP 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 e Authentication Key which is formed as a result of authentication and
90. red 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 6 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 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 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 natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial shock reasons prior to applying power to the
91. ror_Vertical Horizontal bar residual image light spot No KS ES Xx o Ol lt Appendix gt Defected Type caused by T Con Inverter Module N o o 00 N Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes A Video error_ No video Video lag stop Gitt rungen EE RRE EEN 10 EE Aa TUNER mour signal srenoth eneckno meroa ae co Version cren med a ico TV comeston gran A BEER Tuner Checking Part Check Link Cable LVDS reconnection condition Adjustment Test pattern ADJ Key LCD TV connection diagram Check Link Cable LVDS reconnection condition Adjustment Test pattern ADJ Key Exchange T Con Board 1 Exchange T Con Board 2 Exchange LED driver Board PSU Exchange Module itself 1 Exchange Module itself 2 39 83 A9 A10 32 37 42 47 55 A11 A11 32 AUO GE ml A10 A10 32 37 42 47 55 A11 A11 32 AUO para poo ugi pes 55 driver board ae Other PSU LGE Internal Use Only Standard Repair Process Established Eror A Video error pe 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 No video Normal audio Move to No video No audio Precaution A7 8 A3 Always check amp record S W Version and White Balance value before replacing the
92. seen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precautions 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 mod ule 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 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 90 99 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not requi
93. stall Booster Check Contact with signal distributor Tuner soldering or broadcaster Cable or Air Replace Main B D Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process SE A Picture Problem DVB S S2 Estasished 9012 11 30 symptom oe Tuning fail Picture broken Freezing Revised date 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 RF Signal level Check satellite setting w A7 Check LNB frequency Check satellite Check Satellite connection DiSEqC motor etc Check Replace Tuner soldering Main B D si me Change satellite setting Se o match with installed ANT Cable or Air Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Standard Repair Process Error symptom Check color by input External Input COMPONENT RGB HDMI DVI A112 A Video error Established date Color error A10 A11 X Check and replace Link Cable LVDS and contact condition Check error color input mode External Input Check external p gt Check Test pattern Component device and cable RGB Check external HDMI DVI device and error cable Copyright 2013 LG Electron
94. t 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA IEC specification EMC FCC ICES IEC specification Copyright 2013 LG Electronics Inc All rights reserved 6 Only for training and service purposes LGE Internal Use Only 4 General Specification No Item Specification Remark 1 Market 1 North America Television System NTSC M ATSC 64 amp 256 QAM Program Coverage VHF 2 13 UHF 14 69 CATV 1 135 DTV 2 69 CADTV 1 135 Input Voltage AC 100 240V 50 60Hz 5 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 Aspect Ratio 16 9 Tuning System FS LCD Module LC320DXE SFR1 LGD 32LN570B UH LC320DUE SFR1 LGD 32LN5700 UH 32LN5750 UH T390HVNO2 2 AUO 39LN5700 UH 39LN5750 UH HC390DUN VCFP1 CMI 39LN5700 UH 39LN5750 UH LC420DUE SFR1 LGD 42LN5700 UH 42LN5750 UH LC470DUE SFR1 LGD 47LN5700 UH 47LN5750 UH 47LN5790 Ul LC500DUE SFR1 LGD 50LN5700 UH 50LN5750 UH LC550DUJ SEE1 LGD 55LN5700 UH 55LN5750 UH 55LN5790 Ul HC600DUD SLFP1 LGD 60LN5700 UH 60LN5750 UH HC600DUD SLFS1 LGD 60LN6150 UB LC420DUE SFU1 LGD 42LA6200 UA 42LA6205 UA LC470DUE SFU1 LGD 47LA6200 UA 47LA6205 UA LC500DUE SFU1 LGD 50LA6200 UA 50LA6205 UA LC550DUJ SEK1 LGD 55LA6200 UA 55LA6205 UA HC600DUD SLFT1 LGD 60LA6200 UA 60LA6205 UA LC470
95. t 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 E Push the OK key to store the value Then the message Saving OK is pop E Press the exit key to finish V COM adjustment V Com V Com E Saving OK Press O to save Press O to save OOOO 2013 La electronics ic All right reserved Only for training and service purposes LGE Internal Use Only
96. tor leads to the corresponding leads extending from the circuit board and crimp the U 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 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 corresponding 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 th
97. ure Re try downloads 2 3 4 Xx Caution When EDID Download must remove RGB HDMI Cable Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes 14 Reference HDMI1 HDMI3 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 b Serial No Controlled on production line Month Year Controlled on production line ex Monthly 01 gt 01 Year 2013 gt 17 Model Name Hex LGTV MODEL NAME HEX 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 Chassis LA33B Checksum LG TV Changeable by total EDID data 1 2 3 HDMI 1 E8 49 X HDMI2 E8 39 X HDMI3 E8 29 X Vendor Specific HDMI INPUT MODEL NAME HEX HDMI1 67 030C 00 10 00 80 1E HDMI2 67 03 OC 00 20 00 80 1E HDMI3 67 03 0C 00 30 00 80 1E LGE Internal Use Only 4 4 4 2 2D_10bit PCM US _ xvYCC off HDMI EDID 2D_10bit PCM US _xvYCC off 4 4 4 3 3D_8bit_PCM US _ xvYCC off HDMI EDID 3D_8bit_PCM US _xvYCC off Month Year Controlled on production line
98. w s Ries ROM to eMMC o o EE DO OP CTRL3 0 O OPCTRL7 TK opr RL S AMP L DIMMING HDCP KEY H EE T CON CI_ADDR 0 14 CJ MICOM S Demod T2 Demod LNB MHL Sil1292 ETADDRIO SCH I2C ay EE SE EE SEET oa ae En ee o e GE GE KE ST misses E Ser ae SIS Se O 1 2K2 2 7K2 2 7K 2 7K TE _N_TW BR EE Soc gt CI SLOT O Ze MT5398_MISTRT Ca Ee NE OSCL1 MICOM S Sa 1 tou MT5398_TS_OUT 0 7 oscL2 ospa2 1 oscLol mr e MT5398_T OSDAO A MT5398_T OPCT o_spa MT5398_ d CI_DATA O MEE CI_DATA 0 A30 CI_DATA 1 E28 CI_DATA 2 c29 dee Model Option SECH A CI_DATA 5 CI_DATA 6 e k L L L L k CI_DATA 7 e P g _TS_IN 0 Ex e 2 5 3 E S 7 ener eer to D28 Sow 20 den dos RI xe Jon D I CONI E gt SS nen ash aot ane SE ER e CI SLOT gt gt y E 3 2 al E a j ta o x WR RS x dedicated to rese EF El E z HIGH Low edicated to reses ag MODEL_OPT_O eakage urren gt e MODEL_OPT_1 BER La MODEL_OPT_5 pe EE 2 F24 e MODEL_OPT_6 MOD DDR DDR_1 25G DDR_1 5G P MODEL_OPT_ MODE1_O 12 tuner support mot Support Moner opt 5 E DO MODEL_OPT_ st er m MOLE z A x 5 2 e ei EE SE Se 2 MODEL_opT_5 gt H E gt a x 3 5 a ID Moner oP tio 1p soe EC DS gt E E 2 a d i E DDR DDR_0 786 NON_DDR_0 786 SS SE ER 5 do te B a ET Ze ER Eds ER SE EC Base DS z EE E 3 E MODEL_OPT_ SES e L S b e s H M_RFModule_R D SE Che S High MODEL_OPT HE N SYMBOL MARK OF THIS

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