LG 55EG910 Series Service Manual

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OLED TV

SERVICE MANUAL

CHASSIS : ED51E

MODEL : 55EG910*

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL69290301 (1507-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

55EG910*-ZB

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

Summary of Contents for LG 55EG910 Series

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com OLED TV SERVICE MANUAL CHASSIS : ED51E MODEL : 55EG910* 55EG910*-ZB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69290301 (1507-REV00) Printed in Korea...
Page 2 ADJUSTMENT INSTRUCTION .............. 16 BLOCK DIAGRAM .................. 26 EXPLODED VIEW .................. 35 SCHEMATIC CIRCUIT DIAGRAM ........... APPENDIX TROUBLE SHOOTING GUIDE ..........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 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 SAT10&7 68.5E, INTELSAT15 85.2E, INTELSAT1R 50.0W, INTEL- SAT903 33.5W, INTELSAT904 60.0E, NILESAT 7.0W, NSS12 57.0E, THOR 0.8W, TURKSAT 42.0E, YAMAL201 90.0E, OTHER - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10 Input Voltage AC 100 ~ 240V 50/60Hz - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 0.263 0.278 0.293 (Set) Medium(9300K) 0.271 0.286 0.301 0.274 0.289 0.304 Warm(6500K) 0.298 0.313 0.328 0.314 0.329 0.344 - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 HDTV 1080P 1920*1080 26.97 23.976 74.176 HDTV 1080P 1920*1080 33.75 30.000 74.25 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 63.98 60.02 109.00 VESA(SXGA) FHD only 1360*768 47.71 60.01 85.00 VESA(WXGA) 1920*1080 67.50 60.00 158.40 WUXGA(CEA 861D) FHD only - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 50.00 148.50 Field alternative (HDTV 1080I) Frame packing Primary(HDTV 1080I) 67.43/67.50 59.94 / 60.00 148.35/148.50 Field alternative (HDTV 1080I) - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 12 3D input proposed mode Frame compat- Side by Side(half) ible HD/SD 2D to 3D, Side by Side(half) Top & Bottom - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 13 Row Interleaving, Column Interleaving 640*350 720*400 2D to 3D, Others 640*480 Side by Side(half), 800*600 Top & Bottom 1152*864 - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode USB(photo) 2D to 3D, Side by Side(Half), Top & Bottom - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 Row Inter- Column Inter- Side by Side Top & Bottom Checkerboard Frame Packing 2D to 3D Sequential leaving leaving - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 - Ship-out mode - Service Option Default - USB Download(S/W Update, Option, Service only) - ISP Download(Option) - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 2) check the key download for transmitted command (RS232 : ci 00 10) CMD 1 CMD 2 Data 0 - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 CI+ Key Value 20 20 20 20 4.7. WIFI MAC ADRESS CHECK ⓔ Checksum(LG TV): Changeable by total EDID data. 4.7.1. Using RS232 Command ⓔ1 ⓔ2...
Page 19 Color Analyzer Matrix should be calibrated using CS-1000. R Gain G Gain B Gain Warm R Cut G Cut - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 ⑤ Adjust 100 IRE White Balance. ⑥ Adjust Gamam 2.2 each IRE(60, 40, 20). Using max luminance ⑦ Complete 4 point gamma, W/B. - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 (5) Uncover your hands from Eye Q sensor, hold it for 6 seconds. (6) Check "Back Light(xxx)" on the screen, check data increase . You should change Eye Q sensor. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 - If OK, Good lamp will lit up and the stopper will allow the pallet to move on to next process. - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 663.25 V/UHF C 25 503.25 SECAM V/UHF C 07 189.25 V/UHF C 46 671.25 SECAM V/UHF C 04 637.50 - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 Tool option. (explain the Tool option, next stage) C 45 663,250 C 25 503,250 C 07 189,250 C 46 671,250 C 04 63,750 - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 - Don’t need to run a test with this sequence. For example, the sequence such as ‘Right → Up → Down → Left → Enter’ is allowed. - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 35 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14 Symbol A M14-Peripheral LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37 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 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 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 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14+ DDR3-M0 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14+ DDR3-M1 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR VCC & GND THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 11/05/31 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR CI for DVB THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 2014.05.28 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 2014.05.28 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 right reserved. Only for training and service purposes...
Page 45 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AV JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR IR / KEY THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 2 & 3 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 1(DVR) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right 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 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right 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 right reserved. Only for training and service purposes...
Page 52 2012-09-12 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right 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 AUDIO[NTP7515] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 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 right reserved. Only for training and service purposes...
Page 55 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 right reserved. Only for training and service purposes...
Page 56 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 right 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 right reserved. Only for training and service purposes...
Page 58 TUNER 2012.07.10 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 right reserved. Only for training and service purposes...
Page 59 TU_SYMBOL 2012.09.14 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 right reserved. Only for training and service purposes...
Page 60 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 right reserved. Only for training and service purposes...
Page 61 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 11.09.29 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 right reserved. Only for training and service purposes...
Page 63 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SMD Gasket LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right 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 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right 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. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67 Interconnection - 1 55EG9100 [PCBs] Main PCB WIFI + BT Combo ASSY IR / Logo/ Jog ASSY LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 CHECK the vby1 LED and Module supply voltage date ‘Red LED signal ‘ means video output is good (Vx1 signal is locked) Check the Module supply voltage ’24V’ LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69 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 right reserved. Only for training and service purposes...
Page 70 Settings  Channels Channel Tuning  Manual Tuning  select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 OLED TV Version checking method Content date 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 right reserved. Only for training and service purposes...
Page 72 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. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 Revised Content connection diagram (1) date As the part connecting to the external input, check the screen condition by signal LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 Content Check Link Cable (EPI) reconnection condition date Check the contact condition of the Link Cable, especially dust or mis insertion. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 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 right reserved. Only for training and service purposes...
Page 76 Brightness difference Line Dim Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Burnt A – 1/2 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 Green Noise on power on/off time Line Defect Un-repairable Cases In this case please exchange the module. Mura A – 2/2 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 Front LED control : ST-BY condition: On or Off Menu  Option  Power ON condition: Turn Off Standby Light  ON/ Off LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 B. Power error _No power symptom date Revised Check power input voltage and ST-BY 3.5V Content date Check the DC 24V, 12V, 3.5V. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 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 right reserved. Only for training and service purposes...
Page 81 1. Press the Setting button on the remote controller 2. Select the Sound function of the Menu 3. Select the Sound Setting 4. Select TV Speaker LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 ③ Connect the tester RX 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 right reserved. Only for training and service purposes...
Page 83 4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Checking order 1, 2. Check Motion cable condition between Motion assy & Main board. Check the 3.5V_WOL/Wifi_Power_ON on the terminal 4. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 1, 2 Check the 3.5V_ WOL/WIFI_POWER_ON on the terminal 4. Check the WIFI Channel , WIFI SPEED -> MAC , USB2.0(PASS) LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 Standard Repair Process Detail Technical Manual Error Established D. Function error 2013.01.31 symptom date Revised Content Camera operation checking method date 55EG9100 NO Camera LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 Changing method Contact the USB memory. (USB 1,2,3 jack) Enter the password. (ex. 000000) * Access USB Memory has each password. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. 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 LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 No Video/ voltages of Power replace voltage? Board ( 3.5V,12V,20V No audio MAIN B/D or 24V…) Replace Power Board and repair parts LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 2. Install Booster S/W Upgrade Normal Contact with signal distributor or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 Request repair for external device/cable Check external External device device and Replace Main B/D HDMI /Cable cable error normal LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 (Check normal operation of normal? Main B/D 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 right reserved. Only for training and service purposes...
Page 94 Measure voltage of each output of Power B/D Normal? ※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 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 right reserved. Only for training and service purposes...
Page 96 Screen normal voltage Speaker off Cancel OFF Replace Power Board and repair parts Check Replace MAIN Board Disconnection Speaker disconnection Replace Speaker LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 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 right reserved. Only for training and service purposes...
Page 98 (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 right reserved. Only for training and service purposes...
Page 99 Down load the Firmware •If you conduct the loop at 3times, change the * INSTART MENU02.11 MR13/P. Remocon Test3. Firmware download LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 Main B/D ☞A24 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 right reserved. Only for training and service purposes...
Page 101 P4200 2pin Camera B/D ☞A25 Close Check & Repair Camera cable connection ☞A4 Camera Ver. is “NG”? Close Change the Camera assy LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 - 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 right reserved. Only for training and service purposes...
Page 103 ※ 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 right reserved. Only for training and service purposes...
Page 104 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 right reserved. Only for training and service purposes...
Page 105 Defected Type caused by T-Con/ Exchange Power Board (PSU) A-3/5 Inverter/ Module Exchange Module (1) A-4/5 Exchange Module (2) A-5/5 Continue to the next page LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106 Motion Remote operation checking D. Function error method Wifi operation checking method Camera operation checking method E. Etc Tool option changing method LGE Internal Use Only Copyright ⓒ 2015 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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