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LG OLED65W7P Service Manual
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LG OLED65W7P Service Manual

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OLED TV
SERVICE MANUAL
CHASSIS : EA71G
MODEL : OLED65W7P
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69862001 (1704-REV01)
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.
Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONFIDENTIAL
OLED65W7P-U

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Summary of Contents for LG OLED65W7P

  • Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 SOFTWARE UPDATE ................9 BLOCK DIAGRAM ................. 10 EXPLODED VIEW .................. 11 DISASSEMBLY GUIDE ............APPENDIX TROUBLE SHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 3: Safety Precautions

    When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 4: Servicing Precautions

    - 4 - Copyright © LG Electronics Inc. All rights reserved. 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. Only for training and service purposes.

  • Page 6: Specification

    DTV : 2 ~ 69 CATV : 1 ~ 135 CADTV : 1 ~ 135 DTV(UHD) : 2 ~ 69 Input Voltage AC 120V, 50/60Hz, 5.2A - 6 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 7 UDTV 2160P 3840*2160 56.25 25.00 297.00 UDTV 2160P 3840*2160 67.5 30.00 297.00 UDTV 2160P 4096*2160 53.95 23.97 296.703 UDTV 2160P 4096*2160 UDTV 2160P - 7 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 8 UHD DEEP COLOUR ON 4096*2160 134.86 59.94 593.407 UDTV 2160P When HDMI1,2,3,4 UHD DEEP COLOUR ON 4096*2160 60.00 UDTV 2160P When HDMI1,2,3,4 UHD DEEP COLOUR ON - 8 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 9: Software Update

    (8) After TV turned on, Check the updated SW Version and Tool Option (6) Turn OFF the TV and On. Check the updated SW Version and Tool Option - 9 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 10: Block Diagram

    Block Diagram - 10 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 11: Exploded View

    It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 11 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 12: Disassembly Guide

    DISASSEMBLY GUIDE Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 13 ※ Follow the Manual (1-1, 1-2, 2-1, 2-2, ... ) (1-1) Put the a soft cloth and set AV BOX as indicated below picture (1-2) Stand set as indicated below picture AV BOX Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 14 (2-1) Disassemble screw 6ea. ( Top Cover Ass’y – Middle Bottom Ass’y – Rear Cover Ass’y screw) Refer Picture. (2-2) Disassemble screw 6ea. (Middle Bottom Ass’y – Rear Cover Ass’y screw) Refer Picture. Top View Front View Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 15 (3-1) Disassemble Cover, Bottom Rear that is assembled with latch 8ea Push the Cover, Bottom Rear both side and pull as indicated below picture Cover, Bottom Rear 툭 툭 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 16 If you can’t disassemble, you have to move from side to side. Then you can disassemble more easily . (4-4) Before open the Ass’y, Cover Top , you have to disassemble cable 2ea. Ass’y, CoverTop After disassemble Cover, Bottom Rear Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 17 OLED65W7 Disassembly Guide (5-1) Disassemble screw 4ea that is fixing of Speaker, R (5-2) Disassemble screw 4ea that is fixing of Speaker, L Speaker, R Speaker, L Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 18 OLED65W7 Disassembly Guide (6-1) Disassemble Screw 4EA and cable 4ea. (6-2) Disassemble Sub Main. Sub Main Gap Pad Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 19 OLED65W7 Disassembly Guide (7-1) Disassemble cable from holder that is assembled Power Shield right side. (7-2) Disassemble Power Cable 2ea. Power Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 20 (8-1) ~ (8-2) Disassemble Cable of Power Cord. (8-3) Disassemble Power with holding end of the power PCB. (When to do this, attend electronic shock). Power Cord Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 21 * (9-2), (9-3) Pull the insulation sheet and Disassemble screw 1ea, Refer the below picture. (9-4) Pull the Gap Pad and Disassemble screw 1ea, Refer the below picture. Power Bottom Shield Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 22 OLED65W7 Disassembly Guide (10-1) Pull the insulation sheet on Power Shield. (10-2) Disassemble Cable 2ea. Power Bottom Shield 10-1 10-1 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 23 (11-2) Disassemble Cable 2ea from Main PCB to T-Con PCB. (11-3) Disassemble Cable 2ea. After disassembled T-Con PCB Main PCB Power Bottom Shield 11-1 11-3 11-2 11-1 11-1 11-2 11-3 11-2 11-3 11-2 11-3 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 24 Main PCB After disassembled Power Bottom Shield 12-1 12-2 12-2 12-2 12-1 12-1 12-1 12-2 12-1 12-2 12-1 12-1 12-3 Gap Pad Gap Pad Gap Pad Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 25 OLED65W7 Disassembly Guide (13-1) Disassemble cable from holder. and Disassemble cable 2ea to fixing LED Lighting. Middle LED Lighting After Disassemble T-Con/Main PCB 13-1 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 26 (14-1, 14-2)Push the latch and pull the end of the right side of LED Lighting to disassemble LED Lighting. (Latch is 4ea) Refer the below picture. LED Lighting 14-1 14-1 14-1 14-1 Disassemble Direction 14-1 14-2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 27 OLED65W7 Disassembly Guide (15-1) Disassemble screw 1ea to fixing Power Cord. Power Cord 15-1 15-1 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 28 (16-2) Disassemble EMI Tape 2ea from Middle to Bottom Plate. (16-3) Disassemble Middle cabinet. 16-1 16-1 16-1 16-1 16-1 16-1 After 16-1 16-1 disassemble Bottom Plate LED Lighting, Power Cord 16-1 16-1 16-2 16-3 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 29 (17-3) Disassemble cable to connecting Wifi from Cover, Bottom and disassemble Wifi bracket. Indicator After Cover, Bottom disassemble Middle Joystick Wifi 17-1 17-2 17-2 17-1 17-3 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 30 (18-1) Disassemble screw 4ea to fixing Bottom Plate and disassemble Bottom Plate. (18-2) All Disassembly is done. After disassemble Joystick Indicator Wifi 18-1 18-1 18-1 18-1 18-1 18-2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 31 Front of Set 19-2 19-2 19-2 19-2 Caution!! When removing Top Cover and Moving Ass’y, do not hold the drive shaft and switch by hand. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 32 Rear of Set Front of Set 20-2 20-1 Rear of Set Front of Set ※ Rib of moving Ass’y is inserted into projection part(‘┌’shape) of Cover Top. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 33 (21-1)~(21-2) Turn the side projection of the Moving Ass’y in the direction of arrow mark. ※ Handle with care and slowly to avoid damage. ※ Do not force to the product strongly. 21-1 21-2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 34 (22-2) Disassemble screw (4EA) that is fixing Sliding Cover. ※ Handle with care and slowly to avoid damage. ※ Do not force to the product strongly. 22-1 22-2 21-2 21-2 21-2 21-2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 35 ■ When replacing the Sliding Cover or Top cover, Check that there is no color difference between Cover Top and Sliding Cover. Cover Top. Sliding Cover. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 36 TROUBLE SHOOTING GUIDE Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 37 E. Noise Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GSCS System for these model. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 38 ☞A4 & A2 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 39 Check and voltages of Power Normal No Video/ replace No audio Board ( 3.5V,12V,20V voltage? MAIN B/D or 24V…) Replace Power Board and repair parts Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 40 1. Reconnection 2. Install Booster S/W Upgrade Contact with signal distributor Normal or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 41 /Cable device and error normal cable Request repair for external device/cable Check external External device device and Replace Main/T-con B/D HDMI /Cable cable error normal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 42 Replace screen? Screen (Check normal operation of Main /T-con External Input, Component, normal? RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 43 Replace Power B/D . Operating: Turn Off . Abnormal Case : Blinking -AM_MODE : Orange -Moving Speaker : Magenta Replace Power -FAN or High Temperature : Blue Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 44 Power off by End of Recording "POWER_OFF_BY_SW_DW" Power off by S/W Download "POWER_OFF_BY_UNKNOWN" Power off by unknown status except listed case Abnormal "POWER_OFF_BY_CPU_ABN" Power off by CPU Abnormal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 45 Power off by End of Recording "POWER_OFF_BY_SW_DW" Power off by S/W Download "POWER_OFF_BY_UNKNOWN" Power off by unknown status except listed case Abnormal "POWER_OFF_BY_CPU_ABN" Power off by CPU Abnormal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 46 20V of Power Screen normal voltage Speaker off Board Cancel OFF Replace Power Board and repair parts Check Replace MAIN Board Disconnection Speaker disconnection Replace Speaker Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 47 (In case of Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 48 Replace Main B/D (Power B/D don’t have problem) If R/C operate, Normal Close operating? Explain the customer cause is interference from light in room. Replace R/C Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 49 “00.00”? Replace MR16A Close Down load the Firmware •If you conduct the loop at 3times, * INSTART MENU12.RF Remocon Test3. Firmware change the MR16A download Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 50 Recognition error - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 51 “NG”? Voltage? 1pin Main B/D ☞A15 Check & Repair Close Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 52 “Part related to nose” in the Owner’s then proceed as shown in the solution manual Manual. (For models without any fix information, provide the description) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 53 Revised date 16/16 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote Replace remote control control damage Stand Replace stand dent Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 54 Check Link Cable (EPI) reconnection A. Video error_ Color error condition <Appendix> Exchange Module (1) A-1/2 Defected Type caused by T-Con/ Exchange Module (2) A-2/2 Inverter/ Module Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 55 Voltage and speaker checking method when there is no audio Remote control operation checking method D. Function error Motion Remote operation checking method Abnormal Case Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 56 2. Enter into White Balance of item 12. 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. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 57 TUNER input signal strength checking method Content date  All Settings  Channels Channel Tuning When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 58 OLED TV Revised Version checking method Content date 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 59 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 60 OLED TV residual image, light spot Revised Content Connection diagram date As the part connecting to the external input, check the screen condition by signal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 61 1. Remove all of the top assy and components for making the same situation like picture under below. Please Refer to the exploded diagrams of TV set. 2. Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 62 Appendix : Exchange the Module (1) Brightness difference Vertical abnormal display Line Dim Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Burnt A – 1/2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 63 Brightness dot noise Half dead Brightness difference Green Noise on power on/off time Line Defect Un-repairable Cases In this case please exchange the module. A – 2/2 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 64 B. Power error _No power symptom date OLED TV Revised Content Check front display Logo date ST-BY condition: On or Off Power ON condition: Turn Off Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 65 Check power input voltage and ST-BY 3.5V Content date 24Pin(Power Board ↔ Main Board) DRV ON DPC_CTL PWR ON AC_DET Check the DC 20V, 12V, 3.5V. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 66 POWER OFF MODE checking method date Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3(power On/Off Status) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 67 1. Press the Setting button on the remote control 2. Select the Sound function of the Menu 3. Select the Sound Out 4. Select TV Speaker Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 68 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 69 1, 2. Check IR cable condition between IR & Main board. EYE_SCL 14 EYE_SDA Check the st-by 3.5V on the terminal 8 on P4000 N.C. N.C. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 70 Check IR cable condition between IR & Main board. Check WIFI Combo cable condition between WIFI Combo Assy & Main board. Check the 3.5V_WIFI P4004 on the terminal 1 & 6 N.C. N.C. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 71 Checking order 1. Check LED Color  Orange 2. Unplug the power cord 3. Reconnect Cable to AV Box(or Extension Cable) 4. Plug the power cord Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 72 2. Check MOTOR 12V (Q10002 or L10002) 3. Check DET SW broken or not. 4. Check Motor 5. Replace each part or Cover Top Assy. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 73 Checking order 1. Check LED color  Blue Temp. 2. Check FAN Stauts (Poweronly mode or Instart > OLED) Sensor 3. Replace FAN or Temperature Sensor. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.

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