LG 42LA8600 Service Manual

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LED TV

SERVICE MANUAL

CHASSIS : LB34D

MODEL : 42LA8600

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL67692202 (1303-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

42LA860Y

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

42LA8600-TA

42LA860Y-TA

Printed in Korea

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Summary of Contents for LG 42LA8600

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LB34D MODEL : 42LA8600 42LA8600-TA 42LA860Y 42LA860Y-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67692202 (1303-REV00) Printed in Korea...
Page 2 SERVICING PRECAUTIONS ..............4 SPECIFICATION ..................5 ADJUSTMENT INSTRUCTION .............. 13 EXPLODED VIEW .................. 21 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 3 An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 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. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 6 Side JPEG, MP3, DivX HD USB Input(3EA) EMF, DivX HD, For SVC (download) (USB 3.0 : 1EA, USB 2.0 : 2EA) - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 HDTV 1080P 1920*1080 56.25 148.5 HDTV 1080P 1920*1080 67.432 59.94 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.5 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 Only UD Model 3840*2160 56.25 25.00 297.00 UDTV 2160P Only UD Model 3840*2160 67.5 30.00 297.00 UDTV 2160P Only UD Model - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 2D to 3D, Side by Side(half), Top & Bottom, Checkerboard, 1920*1080 56.250 50.00 148.5 HDTV 1080P Single Frame Sequential, Row Interleaving, Column Interleaving - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 56.250 148.5 Side-by-side(half) Secondary(HDTV 1080P) Top-and-Bottom Primary(HDTV 1080P) 1920*1080 67.43 / 67.5 59.94 / 60 148.35/148.50 Side-by-side(half) Secondary(HDTV 1080P) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 2D to 3D, Side by Side(half), Top & Bottom 1920*1080 33.71 29.97 74.176 HDTV 1080P 2D to 3D, Side by Side(half), Top & Bottom - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 12 ■ Remark: 3D Input mode Single Frame Line Column Side by Side Top & Bottom Checker board Frame Packing Sequential Interleaving Interleaving LLLLL - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 13 5) Check of result: Ready, Test, OK or NG - Pattern level : 0.7 ± 0.1 Vp-p - Image - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 (3) Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0 - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 Monthly : ‘01’ → ‘01’, Year : ‘2013’ → ‘17’ ⓓ Model Name(Hex): LGTV Cf) TV set’s model name in EDID data is below. ⓔ Checksum(LG TV): Changeable by total EDID data. ⓕ Vendor Specific(HDMI) - 15 - Copyright ©...
Page 16 [CMD DATA] Offset adjustment completed Camera Function Start. End White Balance adjustment Camera Function End. (internal pattern disappears ) - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 5) Adjustment is performed in COOL, MEDIUM, WARM 3 modes of color temperature. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 Step 3) Confirm the Local Dimming mode. Step 4) Press "exit" key. 10-19 20-35 36-49 50-79 80-119 Over 120 - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 Country Group then on the lower Country option, select US, CA, MX. Selection is done using +, - or ►◄ KEY. - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 3) Punch in the number. (Each model has their number.) - Internal Pressure TEST = POWER CORD GND & LIVE & NEUTRAL ▪ LEAKAGE CURRENT: At 0.5 mArms - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. H13 D CHIP Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN POWER 11/05/31 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN AUDIO/VIDEO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN DDR Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 2012-10-20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PCMCIA Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 2012-12-07 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 2012.02.22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 30 JACK HIGH/MID 2012.10.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 IR / KEY 2012.10.10 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 32 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR USB JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 34 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SCART GENDER Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 LAN_VERTICAL 2011.12.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 2012-09-12 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 39 SCART AUDIO AMP 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 CI SLOT 2011.10.31 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 CI SLOT 2011.04.17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 2012.07.10 TUNER ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 44 TU_SYMBOL 2012.09.14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 45 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 47 LOCAL DIMMING 2012.09.14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 2011.12.01 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-Con Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 2012.09.14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. EPI_CAP Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 50 11.09.29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 2013 LED/LCD TV Engineering guide < Applicable Model : High-end Platform > XXLA860*-T*, XXLA790*-T* Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 53 To PSU Micom for Key/IR/Logo sensing PMIC Audio AMP To module EPI Wafer Level shifter WIFI/BT Front Spk Key+IR+Logo 2 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 54 To PSU Micom for Key/IR/Logo sensing PMIC Audio AMP To module EPI Wafer Level shifter WIFI/BT Front Spk Key+IR+Logo 3 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 USB 3.0 USB1(USB3.0) USB 2.0 X-TAL USB2(USB2.0) 24MHZ USB 2.0 USB3(USB2.0) DDR3 DDR3 eMMC 4Gb×2 4Gb×2 4GB×1 (1600) (1600) 4 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 56 33 Ω IC7700 [SCL2/GPIO78] SII9587CNUC TPS65178RSLR AJ33 I2C_SDA5 [CSDA] [SDA] I2C_SDA2_SOC HDMI_SW 33 Ω [SDA4] 33 Ω AR17 [SDA2/GPIO77] 5 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 57 H13-A (SDRAM_VDDQ) H13-A (VDD_XTAL) H13-A (AUAD_REF) EMMC(VCC) H13-A (VDD25_REF) EMMC(VCCQ) TUNER(+3.3V_TU) 5V Normal HDMI SW AUDIO AMP CI Slot 6 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 58 V17 [ADC_I_INN] TUNER_SIF H18 [AAD_ADC_SIF] LG1154AN [M_SIF] 6 TU_CVBS V15 [CVBS_IN1] [M_CVBS] 8 J18 [IFAGC] IF_AGC [M_IF_AGC] 9 7 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 JK3801 KJA-PH-1-0177-2 TU_CVBS(TU_CVBS_SOC) [CVBS_IN1] TUNER_SIF [AAD_ADC_SIF] FE_DEMOD1_TS_ERROR / SYNC / VAL / CLK FE_DEMOD1_TS_DATA[0-7] (LG1154D) Tuner TU6702-*1 TDSQ-A651D 8 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 60 AMP_MUTE MICOM SIDE_HP_MUTE TUNER_SIF [AAD_ADC_SIF] TPA6138A2 HEADPHONE HP_L/ROUT_MAIN Headphone [AUDA_OUTL] [PHY0_ARC_OUT_0] [IEC958OUT] Phone Jack LINE OUT SPDIF_OUT SPDIF_OUT_ARC 9 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 HDMI4 (IC3000 / R5F100GEAFB) TMDS Link 8bits CEC_REMOTE DDC_I2C 2bits HDMI_HPD_4 MHL_DET MHL OCP 5V_HDMI_4 (IC3202 / TPS2554) 10 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 62 50~39 TX3P/N (EPI CH4 ±) 32/31 TX4P/N (EPI CH5 ±) 24/23 TX5P/N (EPI CH6 ±) 20/19 TX_LOCKN EPI_LOCK6_SOURCE 11 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 63 CTRLP Diode GAM4/5/7/12/14/15 6-Ch Gamma Buffer(DAC output) VCOM_P VCOM_N Vcom reference & gain VCOM_LOOP PMIC_RESET Reset PMIC TPS65178 12 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 64 Motion Remote M_RFModule_RESET [GPIO13] Receiver M_REMOTE_RTS [UART1_RTS] M_REMOTE_CTS [UART1_CTS] SOC_TX 4Pin debugging [UART0_RXD] SOC_RX [UART0_TXD] Wafer LG1154D_H13D RENESAS MICOM 13 / 90 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 65 Interconnection (XXLA860X-TA)- 1 [PCBs] Main PCB WIFI ASSY BT MOTION ASSY IR/Logo PCB Local Key Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 66 WIFI ASSY BT MOTION ASSY IR Key PCB SPK unit Local Key BT MOTION ASSY IR PCB WIFI ASSY To Main PCB Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 67 Main / Module EPI Cable 50& 50Pin LED driver / PSU IR 8Pin Cable WiFi 6Pin + RF 8Pin Cable SPK Cable Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 68 Interconnection (XXLA790X-TA)- 2 [PCBs] IR Assy [Cables] IR to Local Key 3Pin Cable IR to Logo Assy 4Pin Cable Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 69 Introductions of 13Y RF ass’y + Magic Remote control 1. System 2. Remote Buttons 3. MR13 Block Diagram 4. Function List 5. Pairing/Un-pairing Method Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 70 • Period : 7.5msec • Motion Data : gyro, accelerometer  Voice Data Transmission • Period : 10msec • Voice sampling : 16khz 16bit Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 71 0x03 0x8003 MUTE 0x09 0x8009 AUTO_WAKEUP 0x800C VOICE_START 0x800A Logical VOICE_STOP 0x800D Buttons POINT_START 0x803E M4 Remote MR13P Remote POINT_STOP 0x803F Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 72 2.8V LDO 2.8V LDO AA x 2 Battery uP0108NEC5-28 uP0108NEC5-28 TI TPS61097 Connector SC70 SC70 SOT23-5 Bluetooth Receiver Bluetooth Remote control Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 73 DC-DC Converter TPS61097 Battery Boost up Regulator LDO1 uP0108NEC5-28 RF, Gyro, Accelerometer Power Supply LDO2 uP0108NEC5-28 Audio Codec, Mic. Power Supply Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 74 5 sec. • After unpairing, LED should be blinked for 3sec. • The remote just becomes to IR mode. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 75 Introductions of 13Y WIFI built in ass’y 1. Wi-Fi built in Ass’y feature 2. Wi-Fi built in Ass’y specification Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 76 6pin 1.25mm 3.3V 1.2V USB interface RX/TX Switch Antenna DM3030 2.4G/5G DP, DN BCM43236B RX/TX Switch Antenna Crystal 2.4G/5G DM3030 20MHz Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 78 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM 2012. 12. 08 LCD TV R&D Lab LCD TV / HW1 team Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 79 (Because operation unique key should be downloaded for Widevine , Widevine key dowmload by NSU is impossible.) [Widevine Key] Widevine Key is unique data stored TV for using Widevine. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 80  the services maintain a huge selection of movies and latest releases and offer DVD rentals via mail & online streaming. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 81 •Exchage Key which is used to set up and protect content streams. •Content Key which is used to encrpt the content being exchanged. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 82 As-Was Current Changed Item : Separate HDCP check box. - HDCP 2.0 Tx - HDCP 2.0 Rx - HDCP 1.4 Rx Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 83 Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 84 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 85 Power No Video/ replace voltage? No audio Board ( 3.5V,12V,20V MAIN B/D or 24V…) Replace Power Board and repair parts Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 86 2. Install Booster S/W Upgrade Normal Contact with signal distributor Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 87 Request repair for external device/cable Check external External device device and /Cable Replace Main B/D HDMI error cable normal Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 88 (Check normal operation of Main B/D normal? External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 89 Measure voltage of each output of Power B/D Normal? ※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 90 Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 91 Screen normal voltage Speaker off Cancel OFF Replace Power Board and repair parts Check Speaker Disconnection Replace MAIN Board disconnection Replace Speaker Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 92 Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 93 (Power B/D don’t have problem) If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 94 Down load the Firmware * INSTART MENU14.RF * If you conduct the loop at 3times, change the M4. Remocon Test3. Firmware download Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 95 Main B/D ☞A24 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 96 P4200 2pin Main B/D ☞A25 Close Check & Repair Camera cable connection ☞A4 Camera Ver. Close is “NG”? Change the Camera assy Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 97 - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 98 ※ Describe the basis of the description (For models without any fix information, in “Part related to nose” in the Owner’s provide the description) Manual. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 99 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 100 Defected Type caused by T-Con/ Exchange Power Board (PSU) A-3/5 Inverter/ Module Exchange Module (1) A-4/5 Exchange Module (2) A-5/5 Continue to the next page Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 101 Motion Remote operation checking method D. Function error Wifi operation checking method Camera operation checking method E. Etc Tool option changing method Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 102 After turning on the power and disassembling the case, check with the naked eye, whether you can see light from 2 locations. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 103 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. re-enter the value after replacing the MAIN BOARD. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 104 Settings  Set up Manual Tuning  select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 105 <ALL MODELS> 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 106 1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 107 LCD TV connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 108 Check Link Cable (EPI) reconnection condition date <ALL MODELS> Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 109 Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 110 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack A - 1/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 111 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION A - 2/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 112 Appendix : Exchange Power Board (PSU) No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 113 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 114 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect A - 5/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 115 Front LOGO LED control in the status of Power On Condition: Menu  Option  LG Logo Light  Duration(off, off after10min) Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 116 Check the DC 24V, 12V, 3.5V. 24 Pin (Power Board ↔ Main Board) Power on INV ON 3.5V PDIM#1 3.5V PDIM#2 L/DIM0_VS L/DIM0_MOSI L/DIM0_SCLK Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 117 Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 118 1. Press the Setting button on the remote controller 2. Select the Sound function of the Menu 3. Select the Sound Setting 4. Select TV Speaker Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 119 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 rights reserved. LGE Internal Use Only...
Page 120 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 rights reserved. LGE Internal Use Only...
Page 121 Checking order 1, 2. Check Motion cable condition between Motion assy & Main board. Check the 3.3V on the terminal 2. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 122 Checking order 1, 2. Check Wifi cable condition between Wifi assy & Main board. Check the 3.3V on the terminal 2. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 123 Checking order 1, 2. Check Camera cable condition between Camera assy & Main board. Check the 3.5V on the terminal 2. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 124 Changing method Contact the USB memory. (USB 1,2,3 jack) Enter the password. (ex. 000000) * Access USB Memory has each password. Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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