LG 47LB6500-UM Service Manual
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LG 47LB6500-UM Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LA42B
MODEL : 47LB6500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL68045224(1403-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
47LB6500-UM
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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  • 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 : LA42B MODEL : 47LB6500 47LB6500-UM CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL68045224(1403-REV00) Printed in Korea...
  • Page 2 PRODUCT SAFETY ................. 3 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION .............. 13 EXPLODED VIEW .................. 24 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    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 4: Servicing Precautions

    - 4 - 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: Specification

    - Safety : UL, CSA, CE, IEC specification - EMC: FCC, ICES, CE, IEC specification - Wireless : Wireless HD Specification (Option) - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: General Specification

    8ms LG Display Co., Ltd. LC550EUH-LGF1 FHD 55.0INCH 55LB8700-UA 1920X1080 450CD COLOR 72% 16/9 1300:1 120Hz Inverter N LED 3D(FPR) 68.1W, 8Bit, 10000K, 178/178, 8ms LG Display Co., Ltd. HC700CUF-VHHD1 FHD 70INCH Sharp HC700CUF-VHHD1 70LB7100-UC 1920X1080 400CD COLOR 72% 16/9...
  • Page 8 LC600DUF-FGP1 FHD 60INCH LC600DUF-FGP1 60LB6500-UP 1920X1080 350CD COLOR 68% 16/9 1600:1 120Hz Inverter N LED 3D(FPR) W/T-con 72.7W 8Bit 10000k 178/178 9ms(GTG) LVDS 2 Port (HS) LG Display Co., Ltd. LC470DUH-FGA2 FHD 47INCH LC470DUH-FGA2 47LB6300-UQ 1920X1080 300CD COLOR 68% 16/9 1600:1 120Hz Inverter N LED 2D W/T-con 50.8W 8Bit 10000k 178/178 6ms(GTG)_...

  • Page 9: Supported Video Resolutions

    HDTV 1080P 1920*1080 26.97 23.97 74.176 HDTV 1080P 1920*1080 33.75 30.000 74.25 HDTV 1080P 1920*1080 33.716 29.976 74.176 HDTV 1080P - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 2D to 3D, S/S, T&B, C/B, R/I, C/I 26.973 / 27 23.976 / 24 74.175/74.25 1920*1080p 33.716 / 33.75 29.97 / 30.00 74.175/74.25 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Auto Detection

    Resolution H-freq(kHz) V-freq.(kHz) 3D input proposed mode Under 320*240 2D to 3D Over 320*240 2D to 3D,Side-by-side , Top-and-Bottom - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 2D Support freq 2D Support resolution Side by Side Top & Bottom Checkerboard Single Frame Frame Packing 2D to 3D Sequential - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Adjustment Instruction

    (2) Manual adjustment for ADC calibration and White balance. (3) Shipment conditions, Channel pre-set 4.2.6. Inspection - In INSTART menu, check these keys. - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 4.4.2 Equipment ⓔ Checksum(LG TV): Changeable by total EDID data. ▪ Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need.
  • Page 15 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 LA42B 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 ⓔ Checksum(LG TV): Changeable by total EDID data. ⓔ Checksum(LG TV): Changeable by total EDID data. ⓔ1 ⓔ2...

  • Page 16: Final Assembly Adjustment

    00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (2) Adj. Computer (During auto adj., RS-232C protocol is needed) ⓔ Checksum(LG TV): Changeable by total EDID data. (3) Adjust Remocon (4) Video Signal Generator MSPG-925F 720p/204-Gray ⓔ1...

  • Page 17: Adjustment Method

    ▪ W/B Adj. must begin as start command “wb 00 00” , and Warm 0.313 0.329 6,500K 0.0000 finish as end command “wb 00 ff”, and Adj. offset if need - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 65LB6300- 22282 55LB8700- 4627 25236 64774 43434 2377 33291 22282 * Tool option can be reconstructed by Software - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 5.5.2. Check the menu on in-start <Local dimming for 65LB67/68/69/7200-U*> <Local dimming for 60LB7100-U*> <Local dimming for 65LB7100-U*> <Local dimming for 70LB7100-U*> - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 * Remark: Inspect in Power Only Mode and check SW version Except that one, other method is same when use the in a master equipment ‘MASTER’ equipment - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 15.0 18.0 (1) Measurement 10.4 11.0 12.0 Vrms condition - EQ/AVL/Clear Voice: Off (2) Speaker (8Ω Impedance) Only LB86,LB87 - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 (3) Punch in the number. (Each model has their number.) - Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Optional Adjustments

    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 216 Gray pattern. - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 24: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol A THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Peripheral Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol B THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Display In/Out Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol C THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-AV In/Out Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 DDR3-M0 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 DDR3-M1 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR VCC & GND THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 11/05/31 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AV JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. IR / KEY Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 2 & 3 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 1(DVR) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 2012-09-12 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 TUNER 2012.03.08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 TUNER 2012.07.10 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 LOCAL DIMMING 2012.09.14 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 2013.04.03 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-Con Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 11.09.29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR IR Blaster/Boost THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 2014 LED/LCD TV Engineering guide < Applicable Model – Mid end > < Applicable Model Mid end > 55LB7200 70/65/60LB7100 60/55/50/47/42LB6500 65/60/55/47/42LB6300 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 52 7. New sub assy’s - Instruction of new sub assy’s - How to use tool - Download 8 Repair guide 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 - Instruction of new sub assy’s Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 6. Structure of TV set and connection of sub assy’s 7. New sub assy’s - Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 56 Standard of 2014 Model Name Model Name Description of Tool Options Description of Tool Options Tool option info - 6/83 - Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 57: New Features

    6. Structure of TV set and connection of sub assy’s 7. New sub assy’s - Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 58 Architecture Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 6. Structure of TV set and connection of sub assy’s 7. New sub assy’s - Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 60 Tuner Audio AMP (12W+12W) LVDS or EPI Wafer Front Spk t S k 1. Key + IR 2. WIFI + BT Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 Tuner Audio AMP (12W+12W) LVDS or EPI Wafer Front Spk t S k 1. Key + IR 2. WIFI + BT Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 62 Tuner Audio AMP (12W+12W) LVDS or EPI Wafer Front Spk t S k 1. Key + IR 2. WIFI + BT Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 - Instruction of new sub assy’s Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 ASSY IR / KEY/EYE ETHERNET X_TAL #EPI & LVDS Diagram 25MHz I2C 3 Sub Micom (RENESAS R5F1000G) X TAL X_TAL 32.768KHz Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 3.3KΩ 3.3KΩ I2C_SDA2 I2C_SDA5 IC3000 33Ω 33Ω TUNER (Demod) I2C_SCL2 Renesas MICOM I2C_SCL5 +3.5V_ST EYE_I2C_SDA 3.3KΩ EYE_I2C_SCL 100Ω IR / KEY/EYE Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 66: Power Block Diagram

    3. Power Block Diagram 3. Power Block Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 AK28 [DMD_ADC_INP] [M_DIF_P] 6 IF_N AL28 [DMD ADC INN] AL28 [DMD_ADC_INN] [M DIF N] 7 [M_DIF_N] 7 IF_AGC M_DIF_IFAGC 3 AM29[IFAGC] Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 68 COMP1_Y_IN_SOC SC_R/G/B COMP1_Y_IN_SOC_SOY SC_CVBS_IN_SOY COMP1_PR_IN_SOC [PB1_IN/Y1_IN/SOY1_IN/PR1_IN] AUAD_L_CH2_IN SC_L/R_IN AUAD_R_CH2_IN [AUDA_L_CH2_IN/AUDA_R_CH2_IN] JK4600 Tuner TU_CVBS TU_CVBS_SOC [CVBS_IN1] TUNER_SIF ADC_I_INP TUNER_SIF/IF_P/N [AAD_ADC-SIF] ADC_I_INN [DMD_ADC_INP/DMD_ADC_INN] Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 69: Audio Out Block Diagram

    IC6100 HP L/ROUT MAIN HP_L/ROUT_MAIN HP L/ROUT AMP HP_L/ROUT_AMP [AUDA_OUTL] HEAD PHONE TPA6138A2PWR [AUDA-OUTR] HP AMP JK3403 SPDIF_OUT [IEC9580UT] JK3401 JK3401 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 70 TMDS Link 8bits HDMI HPD HDMI_HPD HDMI3 HDMI3 with MHL with MHL Q3001 5V_HDMI_4 5V_NORMAL HDMI_CEC MHL_DET X-tal RENESAS WOL_CTL 32.768kHz MICOM Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 EPI Tx Block GMA4/GMA5/GAM7/GMA12/GMA14/GMA15 VGH_ODD/EVEN,VST,GIP_RST VCOM 1/2 - Top/Bottom CLK1~CLK6 VCOMLFB OP AMP VCOMRFB CLK1~CLK6 VGH_ODD/EVEN,VST,GIP_RST GMA4/GMA5/GAM7/GMA12/GMA14/GMA15 EPI CH5/6/7/8+/- EPI_LOCK8 EPI_LOCK8 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 72 /USB OCD3 /USB_OCD3 [EB_CS1] USB_CTL3 [EB_CS0] WIFI-BT_DM [USB2 0 DP0] [USB2_0_DP0] WIFI-BT_DP WIFI-BT [USB2_0_DM0] EYY_SCL EYE_SDA IR-KEY Micom -EYE KEY1 KEY2 IC101 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 - Instruction of new sub assy’s Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 74 Main / Module LVDS Cable LED driver / PSU 10Pin IR+key Cable 8Pi WIFI/BT A 8Pin WIFI/BT Assy Cable C bl SPK Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 Main / Module LVDS Cable LED driver / PSU 10Pin IR+key Cable 8Pi WIFI/BT A 8Pin WIFI/BT Assy Cable C bl SPK Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 76 Main / Module LVDS Cable LED driver / PSU 10Pin IR+key Cable 8Pi WIFI/BT A 8Pin WIFI/BT Assy Cable C bl SPK Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 Main / Module LVDS Cable LED driver / PSU 10Pin IR+key Cable 8Pi WIFI/BT A 8Pin WIFI/BT Assy Cable C bl SPK Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 78 Main / Module LVDS Cable LED driver / PSU 10Pin IR+key Cable 8Pi WIFI/BT A 8Pin WIFI/BT Assy Cable C bl SPK Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 79 - Instruction of new sub assy’s Instruction of new sub assy’s - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 80 Introductions of 14Y WIFI / BT built in assy + Magic Remote control Table of Contents 1. System 2. Block diagram 3. Paring method Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 81 • Motion Data : gyro, accelerometer gy , Voice Data Transmission • Period : 10msec • Voice sampling : 16khz 16bit Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 82 X-tal 37 4 MHz 37.4 MHz USB 2.0 Connector WiFi / Bluetooth Combo Module b M d l Bluetooth Remote control Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 83 5 sec. • After unpairing, LED should be blinked for 3sec. • The remote just becomes to IR mode. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 84: Block Diagram

    RTC6603 2.4G/5G USB DP, DN BCM43232 RX/TX RX/TX Switch Antenna Crystal RTC6608O 2.4G/5G 37.4MHz BT TX BT TX Antenna RFLPF1608 2.4G Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 85 WIFI Built in ass’y Specification Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 86: Repair Guide

    6. Structure of TV set and connection of sub ass’ys 7. New sub ass’ys - Instruction of new sub ass’ys - How to use tool - Download 8. Repair guide Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 87 First of all, Check whether there is SVC Bulletin in GCSC System for these model. k h th i SVC B ll ti i GCSC S t Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 88 Exchange LED driver Board (PSU) A-3/5 Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Continue to the next page Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 89 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 90 No Video/ replace voltage? ( 3.5V,12V,20V or 24V…) No audio No audio MAIN B/D MAIN B/D Replace Power Board and repair parts Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 Contact with signal distributor Normal Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Replace Main B/D Close Close Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 92 Change satellite setting signal distributor Normal (match with installed ANT) or broadcaster Picture? (Cable or Air) Normal Picture? Close Close Close Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 Request repair for external device/cable Check external RGB/ External device device and Replace Main B/D HDMI/DVI /Cable cable error normal Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 94 (Check normal operation of normal? Main B/D External Input, Component, HDMI/ RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 95: Power Error

    ※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power B/D Replace Power Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 96 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 ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 Speaker off Cancel OFF Replace Power Board and repair parts Check Speaker Replace MAIN Board Disconnection disconnection Replace Speaker Replace Speaker Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 98 Input signal error) Connect and check Normal Check and fix other external device audio? external device Check and fix external device Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 If R/C operate, Normal Close operating? Explain the customer cause is interference cause is interference from light in room. Replace R/C Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 100 RGB,HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical ith t information Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 101 ※ Describe the basis of the description in (For models without any fix information, provide “Part related to nose” in the Owner’s Manual. the description) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 102 Replace module Adjust VCOM exterior damage damage ☞A28 Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 103 D. Function error_ No response in remote Remote controller operation checking method controller key error controller, key error D. VCOM Adjustment Sequence of the Vcom adjustment Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 104 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re- th R G B (GAIN C t) f C l l/M di enter the value after replacing the MAIN BOARD. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 105 (Power Board ↔ Main Board) - Common SMAW200-H24S5 Power on INV_ON 3.5V PDIM #1 3.5V 3.5V PDIM #2 PDIM #2 L/DIM0_VS L/DIM0_MOSI L/DIM0_SCLK Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 106 <ALL MODELS> MENU Channel Manual select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 107 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote ess t e t t e e ote controller for adjustment Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 108 LCD TV connection diagram (1) date date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 109 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 ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 110 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 ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 111 Solder defect, CNT Broken t CNT B k T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 112 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Solder defect, Short/Crack Noise GRADATION GRADATION Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 113 Appendix : Exchange PSU(LED driver) A-3/5 No Light Dim Light Dim Light Dim Light Dim Light Dim Light No picture/Sound Ok Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 114 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 115 Un-repairable Cases In this case please exchange the module. Horizontal Block Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 116 2013. 11 .30 symptom date LCD TV Revised Content Check front display LED date date ST-BY condition: On Power ON condition: Off Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 117 (Power Board ↔ Main Board) - Common SMAW200-H24S5 SMAW200-H24S5 Power on INV_ON 3.5V PDIM #1 3.5V 3.5V PDIM #2 L/DIM0_VS L/DIM0_MOSI L/DIM0_SCLK Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 118 1. Press the IN-START button of the remote controller for adjustment for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 119: Checking Method

    2 Select the AUDIO function of the Menu 2. Select the AUDIO function of the Menu 3. Select TV Speaker Or Other Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 120 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 ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 121 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 ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 122: Vcom Adjustment

    ■ Push the OK key to store the value. Then the message “Saving OK” is pop. ■ Press the exit key to finish V-COM adjustment. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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