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LG 47LM6400 Service Manual

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LED LCD TV

SERVICE MANUAL

CHASSIS : LT22E
MODEL : 47LM6400
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67362716 (1205-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
47LM6400-DJ
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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  Summary of Contents for LG 47LM6400

  • Page 1: Service Manual

    Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LT22E MODEL : 47LM6400 47LM6400-DJ CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67362716 (1205-REV00) Printed in Korea...
  • Page 2 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION .............. 10 BLOCK DIAGRAM .................. 21 EXPLODED VIEW .................. 27 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 4 1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 M120Hz Edge LED 42” FPR : LC420EUH-KEF1 [42LM7600-DA] T240Hz 47” FPR : LC470EUH-KEF1[47LM7600-DA] Edge LED 55” FPR : LC550EUH-KEF1[55LM7600-DA] - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 LC420EUH-KEF1 47” Edge-LED LC470EUE-SEF1 LC470EUG-KEF1 LC470EUE-SEM1 LC470EUH-KEF1 55” Edge-LED LC550EUE-SEF1 LC550EUG-KEF1 LC550EUH-KEF1 32” Edge-LED T320HVN01.0 65” Edge-LED T645HB01 V0 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 VESA(SVGA) 1024*768 48.363 60.004 VESA(XGA) 1360*768 47.712 60.015 84.75 VESA(WXGA) 1920*1080 67.5 60.00 138.50 WUXGA (CEA 861D) FHD Only - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080P 1920*1080 56.25 50.00 148.5 HDTV 1080P 1920*1080 67.432 59.94 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.5 HDTV 1080P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Side by Side, Top & Bottom, Checkerboard Single Frame Sequential 1920*1080 56.25 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard Single Frame Sequential - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 4. PCB assembly adjustment method This spec. sheet is applied all of the 32”/37”/42”/47”/55”/65” 4.1. MAC Address, ESN Key and Wide-vine LCD TV, LT22E chassis by manufacturing LG TV Plant all over Key Download the world ■ D/L Program : keydownload.exe 4.1.1.
  • Page 11 4) Click “RUN”, Check “OK” or “NG” 5) If the TV IS Turn On, Check the updated SW Version and Tool Option. - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Before PCBA check, you have to change the Tool option and have to AC off/on (Plug out and in) (If missing this process, set can operate abnormally) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0xDD (HDMI1) 0x5C 0xCD (HDMI2) 0XBD (HDMI3) 0XAD (HDMI4) - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0x15 (HDMI1) 0x5C 0x05 (HDMI2) 0xF5 (HDMI3) 0xE5 (HDMI4) - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0x11 (HDMI1) 0x5C 0x01 (HDMI2) 0xF1 (HDMI3) 0xE1 (HDMI4) - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 -20°C, it should be placed in the circumstance of above 15°C 11) Change input source RGB 1080p and Do 3)~9) steps. for 3 hours. - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 0.293±0.002 9,300 K 0.000 Warm 0.313±0.002 0.329±0.002 6,500K 0.003 Change reason : When vivid mode, more detail than other company set. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 4) Setting state confirmation lower than the spec.) 5) If automatic setting is finished, you confirm IP and MAC Address - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 At 100mA for Voltage(AC<->FG) 1sec(Line) At 100mA for 1min(OQC) Dielectric At 100mA for Voltage(Without FG) 1sec(Line) At 100mA for 1min(OQC) - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 3) Without 3D-glasses, Like below figure. 4) With 3D left-glass, Like below figure. (Center is RED) 5) With 3Dright-glass, Like below figure.(Center is Blue) - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 BLOCK DIAGRAM - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 CEC_REMOTE - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 27 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION .............. 10 BLOCK DIAGRAM .................. 21 EXPLODED VIEW .................. 27 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 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 30 1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 M120Hz Edge LED 42” FPR : LC420EUH-KEF1 [42LM7600-DA] T240Hz 47” FPR : LC470EUH-KEF1[47LM7600-DA] Edge LED 55” FPR : LC550EUH-KEF1[55LM7600-DA] - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 LC420EUH-KEF1 47” Edge-LED LC470EUE-SEF1 LC470EUG-KEF1 LC470EUE-SEM1 LC470EUH-KEF1 55” Edge-LED LC550EUE-SEF1 LC550EUG-KEF1 LC550EUH-KEF1 32” Edge-LED T320HVN01.0 65” Edge-LED T645HB01 V0 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 VESA(SVGA) 1024*768 48.363 60.004 VESA(XGA) 1360*768 47.712 60.015 84.75 VESA(WXGA) 1920*1080 67.5 60.00 138.50 WUXGA (CEA 861D) FHD Only - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 HDTV 1080P 1920*1080 56.25 50.00 148.5 HDTV 1080P 1920*1080 67.432 59.94 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.5 HDTV 1080P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 Side by Side, Top & Bottom, Checkerboard Single Frame Sequential 1920*1080 56.25 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard Single Frame Sequential - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 4. PCB assembly adjustment method This spec. sheet is applied all of the 32”/37”/42”/47”/55”/65” 4.1. MAC Address, ESN Key and Wide-vine LCD TV, LT22E chassis by manufacturing LG TV Plant all over Key Download the world ■ D/L Program : keydownload.exe 4.1.1.
  • Page 37 4) Click “RUN”, Check “OK” or “NG” 5) If the TV IS Turn On, Check the updated SW Version and Tool Option. - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 Before PCBA check, you have to change the Tool option and have to AC off/on (Plug out and in) (If missing this process, set can operate abnormally) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0xDD (HDMI1) 0x5C 0xCD (HDMI2) 0XBD (HDMI3) 0XAD (HDMI4) - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0x15 (HDMI1) 0x5C 0x05 (HDMI2) 0xF5 (HDMI3) 0xE5 (HDMI4) - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 EDID C/S data HDMI check sum (Hex) Block 0 0x43 Block 1 0x11 (HDMI1) 0x5C 0x01 (HDMI2) 0xF1 (HDMI3) 0xE1 (HDMI4) - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 -20°C, it should be placed in the circumstance of above 15°C 11) Change input source RGB 1080p and Do 3)~9) steps. for 3 hours. - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 0.293±0.002 9,300 K 0.000 Warm 0.313±0.002 0.329±0.002 6,500K 0.003 Change reason : When vivid mode, more detail than other company set. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 4) Setting state confirmation lower than the spec.) 5) If automatic setting is finished, you confirm IP and MAC Address - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 At 100mA for Voltage(AC<->FG) 1sec(Line) At 100mA for 1min(OQC) Dielectric At 100mA for Voltage(Without FG) 1sec(Line) At 100mA for 1min(OQC) - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 3) Without 3D-glasses, Like below figure. 4) With 3D left-glass, Like below figure. (Center is RED) 5) With 3Dright-glass, Like below figure.(Center is Blue) - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 BLOCK DIAGRAM - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 CEC_REMOTE - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 50 - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 52 - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 27 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 MID_MAIN_1 2011.12.13 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 55 MID_MAIN_2 2011.12.19 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 56 MID_MAIN_3 2011.12.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 57 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DDR ONE SIDE Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 58 2011.11.25 MID_POWER ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 59 2011.12.12 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 60 HDMI 4 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 61 JACK HIGH / MID 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 62 JACK_COMMON 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 63 JACK_COMMON 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 64 IR / KEY 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 65 USB3_HUB_WiFi 2011.10.26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 66 MOTION REMOTE 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 67 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 ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 68 2011.11.21 AMP_NEO ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 69 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 ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 70 TUNER 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 71 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 ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 72 LVDS_HIGH_MID 2011.08.11 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 73 LOCAL DIMMING 2011.12.13 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 74 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 ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 75 11.09.29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 76 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 ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 78 2012 LED/LCD TV Engineering guide < Applicable Model > xxLS5700-Dx xxLM6200-Dx xxLM6400-Dx xxLM6700-Dx xxLM6690-Dx xxLM7600-Dx Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 1 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 79 - Download 7. Adjust way of new features (widevine…) 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 2 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 80 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 3 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 81 Model naming and Tool option Standard of 2012y Model Name 12Y model name Description of Tool Options ToolOption Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 4 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 82: New Features

    - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 5 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 83 Better reliability on common noise • No data skew and better EMI margin • Fewer lines than mini-LVDS • Slim PCB design Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 6 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 84 - FHD 120Hz 10Bit : 594Mbps@36Lines → 1.65Gbps@12Lines -Slim S-PCB design (14mm 10mm) helps slimmer TV - FHD 240Hz 10Bit : 594Mbps@72Lines → 1.25Gbps@32Lines Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 7 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 85 • Clock skew • Transmission Overhead Demerit • EMI due to clock lines : 4bit delimiter • Bandwidth limit Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 8 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 86 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 9 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 87 Main processor, DDR Memory Front Spk eMMC Memory Micom for Key/IR sensing RF Assy Audio AMP (10W+10W) LVDS &EPI Wafer Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 10 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 88 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 11 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 89 Sub Micom OPTIC SPDIF OUT Remote Control : according to input spec (RENESAS) Ethernet UART RS-232C only Dev Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 12 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 90 RGB_DDC_SCL [OPCTRL9] [VGA_SCL] RGB_DDC_SDA [VGA_SDA] DSUB_R+, DSUB_G+, DSUB_B+ [RP],[GP],[BP] DSUB_VSYNC, DSUB_HSYNC [VSYNC], [HSYNC] : according to input spec Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 13 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 91 IC7701 VGH_R, VGH_F, VST MCLK_SOC MCLK (47옴) [TCON4] TPS65198 CLK1~6_I CLK1~6 GCLK GCLK_SOC (0옴) [TCON3] 50Pin EPI RIGHT Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 14 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 92 [OPCTRL11] IC7700 I2C_SCL2 [OPCTRL10] TPS65178 EPI_LOCK6_SOURCE EPI_LOCK6 VCOMRFB TXA0N/P, TXB1N/P, TXB2N/P CH4/5/6 VCC18 Vcore H_VDD 50Pin EPI RIGHT Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 15 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 93 Output • LVDS_SEL : “H”=JEIDA, “L” or NC=VESA (LGD) • BIT_SEL : “H” or NC = 10-bit, “L” = 8-bit Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 16 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 94 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 17 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 95 Main / Module LVDS Cable T-con Driver LED driver / PSU 10Pin (IR+Key) Cable SPK Cable RF Assy Cable WIFI Assy Cable Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 18 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 96 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 19 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 97 Introductions of 12Y Model Soft-touch Ass’y 목차 - Introductions of soft-touch 2011년 12월 13일 LCD TV 사업부 LCD TV 연구소 / BP그룹 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 20 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 98: Circuit Block Diagram

    2012Y IR + Soft touch Circuit Block Diagram KEY1, KEY2 Voltage (Tolerance of voltage ±0.2V) Ass’y Picture Pin Configuration Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 21 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 99 - In the case of Power Only On, Red LED turns Off Mode - In the case of DC Off, Red LED turns On Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 22 / 79 Only for training and service purposes...
  • Page 100 4. It doesn’t matter that Touch data gets low value after taking off your finger. Touch Key Threshold Level (Ta = 25ºC ) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 23 / 79 Only for training and service purposes...
  • Page 101 In-start menu and verify Addr Value it that the number of version is changed to what you want. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 24 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 102: Magic Remote Control

    - Introductions of 12Y RF ass’y + Magic Remote control 2011년 12월 19일 LCD TV 사업부 LCD TV 연구소 / BP그룹 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 25 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 103 Voice Data Transmission • Period : 10msec • Voice sampling : 16khz 16bit See “6-2. Packets” on page 8. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 26 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 104: Mute Power

    = VOICE_START AUTO_WAKEUP 0x800C VOICE_START 0x800A Logical VOICE_STOP 0x800D Buttons POINT_START 0x803E M3 Remote M4 Remote POINT_STOP 0x803F Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 27 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 105 M4 4-mode Only Power Management Connector DC-DC 2.8V LDO 2.8V LDO AA x 2 Battery Bluetooth Remocon Bluetooth Receiver Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 28 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 106 Battery Boost up Regulator LDO1 uPI7716 RF, Gyro, Accelerometer Power Supply LDO2 uPI7716 Audio Codec, Mic. Power Supply Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 29 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 107 5 sec. • After unpairing, LED should be blinked for 3sec. • The remote just becomes to IR mode. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 30 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 108 목차 -Introductions of WIFI built in ass’y 2011년 12월 21일 LCD TV 사업부 LCD TV 연구소 / BP팀 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 31 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 109 WIFI Built in ass’y feature(LGIT) WIFI built in feature - Pin map USB interface - Block diagram Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 32 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 110 WIFI Built in Block-diagram(Arcadyan) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 33 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 111 WIFI Built in ass’y Specification Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 34 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 112 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 35 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 113 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM 2011년 12월 22일 LCD TV 사업부 LCD TV 연구소 / BP그룹 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 36 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 114 [Widevine Key] Widevine Key is unique data stored TV for using Widevine. Widevine Key is unique data stored TV for using Widevine. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 37 / 79 Only for training and service purposes...
  • Page 115 Netflix the services maintain a huge selection of movies and latest releases and offer DVD rentals via mail & online streaming. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 38 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 116 •Content Key which is used to encrpt the content being exchanged. •Content Key which is used to encrpt the content being exchanged. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 39 / 79 Only for training and service purposes...
  • Page 117 2.CNTV (Yes/No) 3.HDCP Tx (Yes/No) 4.DTCP Rx (Yes/No) 5.HDCP Rx (Yes/No) 주3) CNTV [Yes] : China Smart TV Only Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 40 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 118 4. Changed BOM Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 41 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 119 - Download 7. Adjust way of new features 8. Repair guide 9. The latest issue and concerning issue Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 42 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 120 F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 43 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 121 Exchange LED driver Board (PSU) A-3/5 Other : PSU Inverter/ Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 44 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 122 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 45 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 123 No Video/ replace voltage? No audio ( 3.5V,12V,20V or MAIN B/D 24V…) Replace Power Board and repair parts Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 46 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 124 Contact with signal distributor Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 47 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 125 Normal (match with installed ANT) or broadcaster Picture? (Cable or Air) Normal Picture? Close Close Close Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 48 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 126 RGB/ Check external External device HDMI/DVI device and /Cable Replace Main B/D error cable normal Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 49 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 127 Main B/D HDMI/ External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 50 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 128 ※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 51 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 129 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 52 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 130 Speaker off Cancel OFF Replace Power Board and repair parts Check Speaker Disconnection Replace MAIN Board disconnection Replace Speaker Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 53 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 131 Connect and check Normal Check and fix other external device audio? external device Check and fix external device Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 54 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 132 If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 55 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 133 Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 56 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 134 “Part related to nose” in the Owner’s Manual. as shown in the solution manual (For models without any fix information, provide the description) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 57 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 135 ☞A28 Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 58 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 136 D. Function error_ No response in Remote controller operation checking method remote controller, key error D. VCOM Adjustment Sequence of the Vcom adjustment Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 59 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 137 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. enter the value after replacing the MAIN BOARD. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 60 / 79 Only for training and service purposes...
  • Page 138: Pin (Power Board ↔ Main Board)

    Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 61 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 139 - signal test select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 62 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 140 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 63 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 141 LCD TV connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 64 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 142 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 65 / 79...
  • Page 143 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 66 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 144 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 67 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 145 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack GRADATION Noise GRADATION Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 68 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 146 Appendix : Exchange PSU(LED driver) No Light Dim Light Dim Light Dim Light No picture/Sound Ok Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 69 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 147 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 70 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 148 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 71 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 149 Front LED control : Menu Option Power Indicator Standby light ON ST-BY condition: Red Power ON condition: white Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 72 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 150: Table Of Contents

    Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 73 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 151: Lamp Scanning Model : Pwm Dim #2

    Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 74 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 152 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 75 / 79 Only for training and service purposes LGE Internal Use Only...
  • Page 153 1. Press the MENU button on the remote controller 2. Select the AUDIO function of the Menu 3. Select TV Speaker from Off to On Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 76 / 79 Only for training and service purposes...
  • Page 154 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 77 / 79...
  • Page 155 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 78 / 79...
  • Page 156 ■ 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 ⓒ 2012 LG Electronics. Inc. All right reserved. 79 / 79 Only for training and service purposes...