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LG 58UF8300 Service Manual
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LG 58UF8300 Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LJ59J
MODEL : 58UF8300
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69323916 (1506-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
58UF8300-SA
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 : LJ59J MODEL : 58UF8300 58UF8300-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69323916 (1506-REV00) Printed in Korea...
  • Page 2 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 14 BLOCK DIAGRAM ................. 25 EXPLODED VIEW .................. 34 SCHEMATIC CIRCUIT DIAGRAM ..........APPENDIX TROUBLESHOOTING ...............APPENDIX - 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 - 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 Receiving system Digital : SBTVD / Analog : NTSC / PAL-M / PAL-N Input Voltage AC 100 - 240V 50/60Hz - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 HDTV 1080I 1920*1080 33.75 60.00 74.25 HDTV 1080I 1920*1080 56.25 50.00 148.50 HDTV 1080P 1920*1080 67.50 60.00 148.50 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 UDTV 2160P(DVB) UHDonly(Port1,2)-LM15U Only 4096*2160 135.00 59.94 593.41 UDTV 2160P UHDonly(Port1,2)-LM15U Only 4096*2160 135.00 60.00 594.00 UDTV 2160P UHDonly(Port1,2)-LM15U Only - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 UDTV 2160P UHD only 4096*2160 53.95 23.97 296.703 UDTV 2160P UHD only 4096*2160 54.00 24.00 297.00 UDTV 2160P UHD only - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 Primary(HDTV 1080I) Field alternative (HDTV 1080I) 67.43/67.50 59.94 / 60.00 148.35/148.50 Frame packing Primary(HDTV 1080I) Field alternative (HDTV 1080I) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Side by Side(half), Top & Bottom 1920*1080 33.71 29.97 74.18 2D to 3D, HDTV 1080P 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 12 594.00 HDTV 2160P 2D to 3D, (HDMI1,HDMI2 Only) Side by Side(half) Top & Bottom 135.00 60.00 594.00 (HDMI1,HDMI2 Only) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 Side by Side Top & Bottom Checker- Single Frame Frame Pack- Line Column 2D to 3D board Sequential Interleaving Interleaving - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 ▪ xb 00 06 [Change input source to RGB(1024*768)] ▪ ad 00 10 [Adjust 1920*1080 RGB] ▪ aa 00 90 End adj. - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 2) connect each other LAN Port Jack. 3) Play Test (F9) button and confirm OK Message. 4) remove LAN CABLE - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 4.5.1. Using RS232 Command Command Set ACK Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G] ■ Check the menu on in-start - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Monthly : ‘01’ → ‘01’ Year : ‘2015’ → ‘19 ⓓ Model Name(Hex): LGTV ⓔ Checksum(LG TV): Changeable by total EDID data. ⓕ Vendor Specific(HDMI) 5.2.4.1. EDID for 3D Model olny # HDMI 1(C/S : E6 F4) – 3G...
  • Page 18 # HDMI 2(C/S : E6 0D) -3G/6G EDID Block 0, Bytes 0-127 [00H-7FH] Input FFh (Checksum) FFh (Checksum) 6G(HDMI Deep Color) HDMI1 HDMI2 HDMI3 - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 You have to replace it. * Checksum(HDMI 1/2/3) Input FFh (Checksum) FFh (Checksum) 6G(HDMI Deep Color) HDMI1 HDMI2 HDMI3 - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 → Only when internal pattern is not available G Gain ※ Color Analyzer Matrix should be calibrated using CS-1000 B Gain - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 - After Aging Start, Keep the Power ON status during 5 Minutes. - In case of LCD, Back-light on should be checked using no signal or Full-white pattern. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Step 3) confirm the Local Dimming mode Step 4) Press “exit” Key 3) Don’t wear a 3D Glasses, Check the picture like below - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 2) CVBS, Component: 1KHz sine wave signal (0.4Vrms) check that the unit goes to Stand-by mode. 3) RGB PC: 1KHz sine wave signal (0.7Vrms) - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.) - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Block Diagram 1. LM14A + URSA11 Circuit Block Diagram - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 2. LM14A I2C Block Diagram - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 3. URSA11 Block Diagram - 27 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 4. LM14A + URSA11 Power Block Diagram - 28 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 5. Tuner/CI Block Diagram - 29 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 6. Video/Audio In Block Diagram - 30 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 7. Audio Out Block Diagram - 31 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 8. HDMI - 32 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 9. USB / WIFI / M-REMOTE / UART - 33 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 34 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 LM14A 2015-01-23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN1_SYSTEM THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 36 LM14A 2014-12-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN2_POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 37 LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A DDR LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 38 LM14A 2015-01-08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN4_EXT_IN/OUTPUT THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 39 LM14A 2014-11-13 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A_GND LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 40 LM14A 2014-11-13 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR PCMCI THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 41 LM14A(UF77) 2015-01-08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A_PWR_1_UHD LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 42 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR LM15U_PWR_2_ALL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 43 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 44 LM14A 2015-01-08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR HDMI THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 45 LM15U 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. JACK_COMMON_H LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 46 LM14A 2014-10-23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. IR/KEY LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 47 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LM14A 2014-11-12 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 48 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SCART JACK_H SCART_JACK_H Copyright 2015 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR LAN_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 50 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR NTP_AMP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 51 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 52 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART AMP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 53 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 54 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS JAPAN B-CAS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 55 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TU_CIRCUIT LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 56 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR TU_SYMBOL_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 57 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 58 2015-01-29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Vx1 51P LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 59 LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR Vx1 41P THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 60 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR eMMC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 61 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR RS232C THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 62 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR CLIP TYPE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 63 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR Tuner_GND THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 64 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11 INPUT THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 65 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. URSA11_DDR 15/01/21 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 66 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. UF77 ONLY URSA11_DDR 15/01/21 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 67 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11_GPIO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 68 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11_DCDC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 15/01/21 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 69 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. URSA11_Power LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 71: Lcd Tv

    LCD TV Repair Guide `15 years New Models < Applicable Model > xxUF64, xxUF643, xxUF645, xxUF679, xxUF68, xxUF83 series LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 72 Memory URSA 11 Power Micom for Key/IR sensing From PSU Audio AMP Audio WiFi <SIZE: 174X285> Power On/Off key + IR LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 73 From PSU DDR Memory eMMC Memory URSA 11 Micom for Key/IR sensing Audio AMP Audio WiFi <SIZE: 174X206> Power On/Off key + IR LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 74 From PSU DDR Memory eMMC Memory URSA 11 Micom for Key/IR sensing Audio AMP Audio WiFi <SIZE: 174X206> Power On/Off key + IR LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 75 Main PCB T - CON IR Power On/Off Key ASSY WiFi Combo ASSY IR Jog Key ASSY WiFi Combo ASSY LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. To Main Only for training and service purposes...
  • Page 76 [PCBs] Main PCB T - CON IR Jog Key ASSY WiFi ASSY IR Jog Key ASSY WiFi Combo ASSY LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. To Main Only for training and service purposes...
  • Page 77 [PCBs] Main PCB T - CON IR Jog Key ASSY WiFi ASSY IR Jog Key ASSY WiFi Combo ASSY LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. To Main Only for training and service purposes...
  • Page 78 Circuit noise, mechanical noise F. Exterior error Exterior defect LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes First of all, Check whether there is SVC Bulletin in GCSC System for these model.
  • Page 79 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 80 Check and Normal voltages of Power No Video/ replace voltage? No audio Board ( 12V) MAIN B/D Replace Power Board and repair parts LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 81 2. Install Booster S/W Upgrade Contact with signal distributor Normal Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 82 Request repair for external device/cable Check external External device HDMI device and /Cable Replace Main/T-con B/D cable error normal LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 83 Screen (Check normal operation of normal? Main /T-con External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 84: Power Error

    Measure voltage of each output of Power B/D Normal? ※ Normal Replace Main B/D voltage? Close Normal Check 12V(For STBY 3.3V) voltage? ☞A18 Replace Power B/D Replace Power LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 85 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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 86 Screen normal voltage Speaker off Board Cancel OFF Replace Power Board and repair parts Check Disconnection Replace MAIN Board Speaker disconnection Replace Speaker LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 87 Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 88 (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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 89 Down load the Firmware * If you conduct the loop at 3times, change the M4. * INSTART MENU14.RF Remocon Test3. Firmware download LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 90 Voltage? 1pin Main B/D Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 91 Check the Camera Ver. Reconnect the Normal Replace INSTART menu is “NULL”? operation? Camera module Main B/D Close Change the Camera module LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 92 - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 93 ※ 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 94 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 95 A-2/5 <Appendix> 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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 96: Check Power Input Voltage And St-By 3.5V

    C. Audio error_ No audio/Normal video Voltage and speaker checking method when there is no audio E. Etc Tool option changing method LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 97 <xxUF64, xxUF643, xxUF645, xxUF68> After turning on the power and disassembling the case, check with the naked eye, whether you can see light from locations. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 98 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. (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 99 <ALL MODELS>  Advanced Channels Channel Tuning Manual Tuning When the signal is strong, use the attenuator (-10dB, - 15dB, -20dB etc.) LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 100 Content date <ALL MODELS> 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 101 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. 3. If you can`t see the UHD live TV, please connect signal at left side of jack. (Korea model only) LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 102 LCD TV connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 103 Content Check Link Cable(VX1) reconnection condition date <ALL MODELS> Check the contact condition of the Link Cable, especially dust or mis insertion. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 104 You can view 6 types of patterns using the ADJ Key Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 105 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. A - 1/5 Only for training and service purposes...
  • Page 106 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. A - 2/5 Only for training and service purposes...
  • Page 107 Appendix : Exchange Power Board (PSU) No Light Dim Light Dim Light Dim Light No picture/Sound Ok LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. A - 3/5 Only for training and service purposes...
  • Page 108 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. A - 4/5 Only for training and service purposes...
  • Page 109 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. A - 5/5 Only for training and service purposes...
  • Page 110 LCD TV Revised Content Check front Power Indicator date <LM14A> ST-BY condition: On or Off Power ON condition: Turn Off LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 111: Table Of Contents

    2 PWM_DIM2 3 GND 4 12V 5 12V 6 12V 7 12V 8 12V 9 GND 10 GND 11 INV_CTL 12 PWM_DIM1 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 112: Established Date 2015.5.25

    <ALL MODELS> Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 113 1. Press the Setting button on the remote controller 2. Select the Sound function of the Menu 3. Select the Sound Out 4. Select TV Speaker LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

  • Page 114: 12V

    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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

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