LG OLED65W9PTA Service Manual
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LG OLED65W9PTA Service Manual

LG OLED65W9PTA Service Manual

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OLED TV
SERVICE MANUAL
CHASSIS : EB91W
MODEL : OLED65W9PTA
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL71442906 (1903-REV00)
Copyright © 2019 LG Electronics Inc. All rights reserved. Only training and service purposes.
OLED65W9PVA
CONFIDENTIAL

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Summary of Contents for LG OLED65W9PTA

  • Page 1 OLED TV SERVICE MANUAL CHASSIS : EB91W MODEL : OLED65W9PTA OLED65W9PVA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL71442906 (1903-REV00) Copyright © 2019 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 2 SERVICING PRECAUTIONS ..............4 SPECIFICATION ..................6 SOFTWARE UPDATE ................10 BLOCK DIAGRAM ................. 11 EXPLODED VIEW .................. 12 DISASSEMBLY GUIDE................13 TROUBLE SHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics Inc. All rights reserved. Only 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 training and service purposes.

  • Page 4: Servicing Precautions

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

  • Page 6: Specification

    PC(HDMI Ver. 1.4), Support HDCP Audio Input DVI Audio, Component, AV SPDIF out SPDIF out USB Input For My Media(Movie/Photo/Music List) or For SVC Ethernet Connect - 6 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 7: Cvbs Input

    1920*1080 33.75 60.00 74.25 HDTV 1080I 1920*1080 56.25 50.00 148.50 HDTV 1080P 1920*1080 67.43 59.94 148.50 HDTV 1080P 1920*1080 67.50 60.00 148.50 HDTV 1080P - 7 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 8 UHD DEEP COLOUR ON When HDMI1,2,3 4096*2160 134.86 59.94 593.407 UDTV 2160P UHD DEEP COLOUR ON When HDMI1,2,3 4096*2160 135.00 60.00 UDTV 2160P UHD DEEP COLOUR ON - 8 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 9 297.00 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 - 9 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 10 (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. - 10 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 11: Block Diagram

    BLOCK DIAGRAM - 11 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 12: 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. - 12 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 13: Disassembly Guide

    (2-1) Disassemble screw 6 EA. (Top Cover Ass’y - Middle Bottom Ass’y - Rear Cover Ass’y screw) Refer Picture. (2-2) Disassemble screw 6 EA. (Middle Bottom Ass’y - Rear Cover Ass’y screw) Refer Picture. Top View Front View - 13 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 14 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 2 EA. Ass’y, CoverTop After disassemble Cover, Bottom Rear - 14 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 15 (5-2) Disassemble screw 4 EA that is fixing of Speaker, L. Speaker, R Speaker, L (6-1) Disassemble Screw 4 EA and cable 4 EA. (6-2) Disassemble Sub Main. Sub Main - 15 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 16 (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 - 16 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 17 Board.) (10-2) Disassemble Cable 2 EA. 10-1 10-2 Power Bottom Shield There are 2 cables connected with T-con inside this area 10-2 10-2 10-2 - 17 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 18 After disassembled Power Bottom Shield 12-1 12-2 12-1 12-1 12-1 12-2 12-2 12-2 12-1 12-1 12-1 12-2 12-3 Gap Pad Gap Pad Gap Pad - 18 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 19 (14-1, 14-2) Push the latch and pull the end of the right side of LED Lighting to disassemble LED Lighting. (Latch is 4 EA) Refer the below picture. LED Lighting 14-1 14-1 14-1 14-1 Disassemble Direction 14-1 14-2 - 19 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 20 (16-3) Disassemble Middle cabinet. 16-1 16-1 16-1 16-1 16-1 16-1 After 16-1 16-1 16-1 disassemble Bottom Plate LED Lighting, Power Cord 16-1 16-1 16-2 16-3 - 20 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 21 (18-1) Disassemble screw 4 EA 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 - 21 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 22 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. - 22 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 23 (22-2) Disassemble screw (4 EA) 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 - 23 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 24: Cover Top

    ■ 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. - 24 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 25: Troubleshooting Guide

    TROUBLE SHOOTING GUIDE Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 26 E. Noise Circuit noise, mechanical noise F. Exterior defect Exterior defect First of all, Check whether there is SVC Bulletin in GSCS System for these model. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 27 ☞A2 (White Balance) Always check & record S/W Version and White Replace Main B/D Re-enter White Balance value Balance value before replacing the Main B/D Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 28 Check various voltages Check and No Video/ Normal of Power B/D (Main) replace No audio voltage? (20V, 12V…) Main B/D Replace Power B/D or repair parts Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 29 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 © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 30 Replace Main B/D device and cable error normal Request repair for External device/Cable Check external External HDMI device and Replace Main B/D device/Cable error cable normal Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 31 Check normal operation of Screen B/D or Module Normal External Input(HDMI/DVI) by normal? error & T-CON B/D screen? connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 32 ☞A9 Measure voltage of each Normal? output of Power B/D Insert Power Normal Replace Main B/D Cord properly voltage? Replace Power B/D Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 33 Status is not Normal displayed) Replace Main B/D voltage? Check Power B/D voltage ※ Caution Check and fix exterior Replace Power B/D of Power B/D Part Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 34 POWER_OFF_BY_OLED_AM_MODE If the Module cable is disconnected, the micom is forced to power off TV. If still occurs , change Module & T-CON B/D Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 35 Power off for cool down the OLED t-con. (OLED) POWER_OFF_BY_EDID_WRITE Power off by EDID write done. Off when on, off while viewing, power auto on/off Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 36 Sound Test Check Sound out Setting Replace Power B/D and repair parts Check Speaker Replace Main B/D Disconnection disconnection or Sub B/D Replace Speaker Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 37 (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 © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 38 If R/C operate, Normal Close operating? Explain the customer cause is interference Normal from light in room. Replace Main B/D Voltage? Replace R/C Replace Power B/D Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 39 Replace MR18 Close Down load the Firmware * INSTART MENU12.RF •If you conduct the loop at 3times, Remocon Test Receiver change the MR18. Firmware download Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 40 Pin #1 Voltage? INSTART menu Main B/D ☞A14 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value Close is “NG”? Change the Wifi assy Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 41 Recognition error signal - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in Recognition external device/cable accordance error with technical information Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 42 Moving SPK with New one. Moving SPK noise ※ Explain ‘Generated Sound’ part of Trouble shooting in the Owner’s Manual to the customer if needed. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 43 16/16 Zoom part with Module Replace Module exterior damage damage & T-CON B/D Remote control Replace remote control damage AIO Box Replace AIO Box damage Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 44 Examples of Symptom (Module) A-6/10 Module / Power Examples of Symptom (Module) A-7/10 Examples of Symptom (Module) A-810 Examples of Symptom (Module) A-9/10 Exchange Power B/D (PSU) A-10/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 45 Moving Speaker Error Alarm Fan or Over Heat mode alarm How to use the Service remote control A15-A17 E. Etc Check items after Main B/D replacement Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 46 Check a voltage of R7632 after turn on the TV. If the voltage is low, Vx1 is locked.(OK) If the voltage is high(3.3V), BDP issue.(NG) No video/ Normal audio Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 47 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re-enter the value after replacing the MAIN B/D. No video/ Normal audio Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 48 All Settings  Programmes  Programme Tuning & setting When the signal is strong, use the  Manual Tuning  Antenna DTV attenuator (-10dB, -15dB, -20dB etc.) Picture broken/ Freezing Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 49 Checking method for remote control for adjustment Version No video/ Normal audio Picture broken/ Freezing Press the IN-START with the remote control for adjustment MR18 operating checking Wifi operating checking Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 50 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 MainB/D. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 51 OLED TV residual image, light spot Content Page No Connection diagram As the part connecting to the external input, check the screen condition by signal Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 52 Check the contact condition of the Link Cable, especially dust or mis-insertion. Color Error Vertical / Horizontal bar, residual image, light spot, external device color error Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 53 CABLE Screen darkness disconnection of the FFC cable pin. G color transient due to poor FFC cable CABLE G Color Excessive connection A - 1/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 54 LVDS cable connection problem CABLE Color spread LVDS cable connection problem Due to foreign substance withi nLVDS CABLE Screen stop cable PIN A - 2/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 55 Main IC problem Main Dark picture Dark left-side screen Top/bottom screen part Main Broken picture Picture problem due to tuner Inner side quality problem A - 3/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 56 Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen A - 4/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 57 Screen picture spread problem Screen problem No problem at the initial stage. Right-side picture Main During Heat run, right-side picture problem problem A - 5/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 58 Source Driver issue Module White dot White dot cause by panel issue Module Line Dim Vertical Line cause by source drive IC A - 6/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 59 Horizon line Module has damaged Module has damaged Module Line Defect Un-repairable Cases Module Press damage In this case please exchange the Module A - 7/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 60 In this case please exchange the Module difference Compensation error when Power On/off Module Green light Color difference between screen cause by Module Color difference compensation error A - 8/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 61 Module has damaged Module No image (Can’t fix it) Burnt Module Burnt (Can’t fix it) Screen Mura Module Mura (Can’t fix it) A - 9/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 62 Appendix : Exchange Power B/D (PSU) No Light No picture/Sound Ok A – 10/10 Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 63 B. Power error _No power symptom date OLED TV Content Check front display Logo Page No ST-BY condition: On or Off Power ON condition: Turn Off No power Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 64 No video/ Normal audio No video/ No audio No power Off when on, Remote control off while viewing & Local switch checking power auto on/off Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 65 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 (Power On/Off Status) Off when on, off while viewing, power auto on/off Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 66 1. Press the Setting button on the remote control. 2. Select the Sound function of the Menu. 3. Select the Sound Out. 4. Select Internal TV Speaker. No audio/ Normal video Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 67 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. No audio/ Normal video Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 68 Check IR cable condition between IR & Main B/D. GREEN Check the st-by 3.5V on the terminal 8 on P4000 EYE_SCL 14 EYE_SDA N.C. N.C. Remote control & Local switch checking Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 69 Check WIFI Combo cable condition between WIFI Combo Assy & Main B/D. Check the 3.5V_WIFI P4006 on the terminal 1 & 6 MR18 operating checking Wifi operating checking Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 70 Standard Repair Process Detail Technical Manual Error Established E. ETC symptom date OLED TV Content Page No How to use the Service remote control How to access the remote control Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 71 Digital EYE function ON/OFF For some Model, access to the Test Pattern TILT Used for screen tilting change (Access to the old PDP control mode) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 72 Connects to external input 1,2,3 COMP1,2 (Added function) Connects to Component 1,2 HDMI1,2,3,4 Connects to HDMI 1,2,3,4 (Add function) DVI (Add function) Connects to DVI Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 73 - Record the R, G, B (GAIN, Cut) value of the color temperature before main B/D replacement. After replacing the main B/D, key in the recorded value. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 74 2. Residual image 3. Module error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of Module or Main-B/D!) Vertical / Horizontal bar, residual image, light spot, external device color error Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 75 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 © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 76 2. Check MOTOR 24V (Q10101 or L10102) 3. Check Door 12V (L5104) 4. Check DET SW broken or not. 5. Check Motor 6. Replace each part or Cover Top Assy. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 77 Checking order 1. Check LED color  Blue 2. Check FAN Stauts (Poweronly mode or Instart > OLED) Temp. Sensor 3. Replace FAN or Temperature Sensor. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 78 Smart JIG Power Diagnosis Muitl Gender Guide (P/N : RAD32507801) (P/N : RAD33187801) A 23 (1/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 79: Main Board

    24 Marking Check UK74,UK75 28Pin 28Pin 12Pin 12Pin 28Pin UK77,UK78 Cable Connection SK79 Includes 49UJ63 SM80/SM86 16/18Y/19Y 16Y/17Y 17Y/18Y 16Y/17Y/18Y/19Y (UH) (UH/SJ) (SJ/UJ/UK/SK) (UH/UK/UM A23 (2/19) (LH/LJ/LK/LM) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 80 LJ61/LJ68, LJ55/LJ58 SK80/SK85/SK95 UK78/UK75/UK77/SK79 ‘18 UK63/UK64/UK65/UK68/UK7050 LK57, 32/43/49LK54, 32LK61/62, 43/49LK61 ‘18 OLED B8, C8, E8, G8, W8 SM80/SM85/SM86 ‘19 UM73/UM74/UM75/UM76/UM79/UM80 LM57/LM63 ‘19 OLED B9/C9/E9/W9 A23 (3/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 81 “A: 2013 LCD POWER” 2014 ▶ Connect the Muiti Gender to the connector (black) as shown in picture 2 of the Smart JIG. A23 (4/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 82 - 20V Power Board : Change the switch to 24V of Smart Jig Voltage - 13.2V/18V Power Board : Change the switch to 24V of Smart Jig Voltage Power B/D Smart Jig Voltage Switch 13.2V/18V A23 (5/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 83 ▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector A23 (6/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 84 ▶ When the OK LED(24V,12V) turns on, Power Board is normal. ▶ When the NG LED turns on, the Power Board can be judged as defective. A23 (7/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 85 ▶ When the OK LED(24V,12V) turns on, Power Board is normal. ▶ When the NG LED turns on, the Power Board can be judged as defective. A23 (8/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 86 ▶ When the OK LED(24V,12V) turns on, Power Board is normal. ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector A23 (9/19) Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 87 ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A23 (10/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 88 ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A23 (11/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 89 ▶ When the NG LED turns on, the Power Board ▶ Fix the LCD MODEL switch to 20V.(Smart JIG) A23 (12/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 90 ▶ When the NG LED turns on, the Power Board ▶ Fix the LCD MODEL switch to 20V.(Smart JIG) A23 (13/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 91 ▶ Connect the 18Pin Power Cable connector to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A23 (14/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 92 ▶ Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A23 (15/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 93 ▶ Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A23 (16/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 94 ▶ Connect the 12Pin Power Cable connector to the Muitl Gender JIG 12Pin connector ▶ When the NG LED turns on, the Power Board A23 (17/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 95 ▶ Connect the 12Pin Power Cable connector to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A23 (18/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 96 ▶ Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A23 (19/19) can be judged as defective. Copyright © 2019 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

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