LG UBK80 Service Manual
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LG UBK80 Service Manual

Ultra hd blu-ray disc player
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Ultra HD Blu-ray Disc™ Player
SERVICE MANUAL
MODEL: UBK80
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN78082559
DECEMBER, 2020
"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 © 2020 LG Electronics Inc. All rights reserved.
Only for training and service purposes.

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  • 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 SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..MECHANISM SECTION 5 ..F/E LOADER PART Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 3: Table Of Contents

    SERVICING PRECAUTIONS ..........................1-4 • GENERAL SERVICING PRECAUTIONS • INSULATION CHECKING PRODEDURE • ELECTROSTATICALLY SENSITIVE (ES) DEVICES FIRMWARE UPDATE GUIDE ........................... 1-5 SPECIFICATIONS ............................. 1-7 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 4: Product Safety Servicing Guidelines For Blu-Ray Disc / Dvd Player Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.

  • Page 5: Servicing Precautions

    Note 1 : Accessible Conductive Parts include Metal panels, sufficient to damage an ES device.) Input terminals, Earphone jacks,etc. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 6: Firmware Update Guide

    1) Insert USB or CD-ROM which has an update fi le. 2) OSD responds to the insertion event. 3) OSD is shown as below. < Firmware Update OSD > OSD contents: Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 7 1) Progressive bar is shown on the update time repeatedly. 2) Tray is opened. 3. AFTER UPDATE COMPLETE 1) Power off / on automatically after update complete. 2) Tray will be closed. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 8: Specifications

    Approx. 430 mm x 45.5 mm x 205 mm Bus Power Supply (USB) 500 mA • Design and specifications are subject to change without notice. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 9 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 10 CONTENTS EXPLODED VIEWS ............................2-2 1. CABINET AND MAIN FRAME SECTION ....................2-2 2. DECK MECHANISM SECTION ........................ 2-4 3. PACKING ACCESSORY SECTION ......................2-6 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 11: Exploded Views

    EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. MAIN BOARD SMPS BOARD BOARD CABLE2 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 12 MCV63873901 Door MOLD ABS BD Player UP970 MOLD MHY63124701 Spring EXTRUSION SWC COIL RH735 Torsi EAD62501535 Power Cord USA95N AT-H2P-1500/95-N-01-BK- CABLE CABLE2 EAD62228008 Cable,FFC 6P100D-H2-0F01N-T-50-0-0-0-0-0 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 13: Deck Mechanism Section

    1029 1013 1015 1016 1027 1028 1029 1439 1028 1020 A006 1052 1011 1030 1019 1043 1018 1045 A005 1439 1060 1051 1060 1050 1439 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 14 CUTTING EVA EPE 87 31 0.5 Shee 1052 MHY64884001 Spring CUTTING SUS304WPB COIL UP870 S 1060 MHK65808504 Sheet CUTTING EVA EPE 43.5 31 0.5 Sh Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 15: Packing Accessory Section

    3. PACKING ACCESSORY SECTION 900 Remote Control Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 16 • Packing accessory parts list LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS AKB75135401 Remote Controller Assembly U3-1 BP350 FCC Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 17 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 18 CIRCUIT VOLTAGE CHART ........................... 3-57 PRINTED CIRCUIT BOARD DIAGRAMS ....................... 3-59 1. SMPS P.C. BOARD ..........................3-59 2. MAIN P.C. BOARD ..........................3-61 3. LED P.C. BOARD ..........................3-65 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 19: Digital Display & Media Training Master

    TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 20 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 21 Test the cable with another device to the TV another set of cables? to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 22 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 23 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 24: Picture

    Test the cable with another device to the TV another set of cables? to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 25 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 26 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 27 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. 3-10 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 28 If the problem continues, then the device is the problem. Set up service according to in warranty or out of warranty procedures. 3-11 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 29: Picture Color

    TV to also determine if the TV is bad. If the BD is the problem, please see service chart for service information. 3-12 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 30 TV to also determine if the TV is bad. If the BD is the problem, please see service chart for service information. 3-13 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 31: Noise/Audio Problems

    TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. 3-14 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 32 TV to also determine if the TV is bad. If BD is problem, please see service chart for service information. 3-15 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 33 If the issue persists, try another set of cables. If the issue still persists, connected to another TV? then the issue is with the unit. The unit will need service. Arrange service following proper procedure. 3-16 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 34: Miscellaneous

    Follow guidelines strikes or power outages? for service for a BD out of warranty. 3-17 Copyright © 2020 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes.
  • Page 35 Multiple discs with the issue can mean multiple discs? the lens on the BD player needs to be cleaned. Recommend a lens cleaner. Service BD if lens cleaner was used. 3-18 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 36 15 to 30 seconds. If the disc reset the unit? remains stuck in the unit after the reset, the unit will need service. 3-19 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 37 Please refer to the OM for instructions on how to program remote to TV. Customer wants to program a remote Does the customer want to other than Zenith or LG, the customer will need to contact program their remote? the manufacturer of the remote control. Codes do not work, remote is not compatible.
  • Page 38 Multiple discs with the issue can mean the lens on multiple discs? the BD player needs to be cleaned. Recommend a lens cleaner. Service BD if lens cleaner was used. 3-21 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 39 Multiple discs with the issue can mean the lens on multiple discs? the BD player needs to be cleaned. Recommend a lens cleaner. Service BD if lens cleaner was used. 3-22 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 40 (the number under the barcode). Get the exact problem Quality and Engineering? the customer is describing Email this information to Matt Wedgman so the issue can be reported to the factory. 3-23 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 41 3-24 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 42 If multiple discs display the issue, remove the disc and change multiple discs? the resolution with no disc in the unit. If resolution will not change, the unit needs service. 3-25 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 43: Blu-Ray Player

    Why does it take When the set is booted, so long to boot my BD? it takes a little long time to loading the OS program. 3-26 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 44: One Point Repair Guide

    CN101 NUTRAL(WH/BL) LIVE(BK/BN) FL101 28mH 22x22x19 F 1 0 1 C104 T1.6AL/250V 470pF/250VAC (1.6A 250V) TH101 D101 F102 < SMPS board top view > 3-27 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 45: Power Problem

    141V 307V 680pF R118 [0V] Stb:20.8V Pon:21.9V FB/OLP IC101 IC101 Q101 D104 < SMPS board top view > < SMPS board bottom view > 3-28 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 46 100nF(0.1u) 0CH1104K566 &U 0.32x2 10nF(0.01uF) 0CH1103K566 D105 1nF(0.001uF) 0CH4102K416 N5:8T/TIW-M &U 0.32x2 20x14,18.3 U102 T101 DGND CE104 D105 CE105 < SMPS board top view > 3-29 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 47 13K (1%) 62K (1%) R213 DGND DGND 8.2K (1%) VOUT = 0.798x((62K+8.2K)/13K+1)= 5.107V     IC201 IC201 < MAIN board top view > 3-30 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 48: Booting When You Turn The Unit On, No Green Led On Front Panel

    13K (1%) 39K (1%) R216 DGND DGND 3.3K (1%) VOUT = 0.798x((39K+3.3K)/13K+1)= 3.394V     IC202 IC202 < MAIN board top view > 3-31 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 49 15K (1%) R217 DGND DGND DGND 1.5K (1%) VOUT = 0.798x((15K+1.5K)/13K+1)= 1.8V IC203 IC203     < MAIN board top view > 3-32 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 50 13K (1%) 15K (1%) R221 DGND DGND 1.5K (1%) VOUT = 0.798x((15K+1.5K)/13K+1)= 1.8V IC204 IC204     < MAIN board top view > 3-33 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 51 22uF 22uF 82nF 100nF /16V /16V /16V /16V /16V DGND DGND DGND IC205 IC205     < MAIN board top view > 3-34 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 52 13K (1%) 10K (1%) R241 DGND DGND 1.5K (1%) VOUT = 0.798x((10K+1.5K)/13K+1)= 1.5V     IC206 IC206 < MAIN board top view > 3-35 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 53 13K (1%) 3.9K (1%) R242 DGND DGND 220 (1%) VOUT = 0.798x((3.9K+220)/13K+1)= 1.05V IC207 IC207     < MAIN board top view > 3-36 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 54 C236 100nF C242 (1%) DGND DGND DGND DGND VOUT = 1.24x(8.2K/1.5K+1)= 8V IC208 IC208     < MAIN board bottom view > 3-37 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 55: Hdmi Video / Audio Output

    IC701 R701 HDMI_5VA EN/EN   R704 0OHM C701 C702 10uF 100nF DGND DGND IC701 IC701   < MAIN board bottom view > 3-38 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 56: Sound

      SPDIF_OUT   C720 C725 C724 27pF 10uF 100nF DGND DGND JK720 JK720     < MAIN board top view > 3-39 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 57: Network Connection Error

    3) If there is soldering problem, please re-soldering pin JK701. 4) If problem still occurs, replace MAIN board. 5-1-3. Service hint (Any picture / Remark) JK701 JK701 < MAIN board top view > 3-40 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 58: Detection

    100nF DGND DGND DGND DGND FB901 CN902 USB_DP USB_DP_P0_FUSB USB_DM USB_DM_P0_FUSB DGND IC213 IC213     < MAIN board bottom view > 3-41 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 59: Electrical Troubleshooting Guide

    Is the D105 Check or replace D105. D105 OK? output 12 VA? Check or replace CE104, CE105 OK? CE104, CE105. Check soldering Connector CN103. 3-42 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 60 (16 V ~ 27 V) supplied to IC101 pin7 ? Check or replace D104. Is R121, R123 normal? Power line of Main PCB is short. Check or replace R121, R123. 3-43 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 61: Power Supply On Main Board

    5.1 VA supplied to IC204 pin1? Is there any voltage Check PWR_CTL or voltage on IC302 (Micom). on IC204 pin5? Check IC204 and replace. 3-44 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 62 3.3 VA supplied to IC211 pin5? Is there any voltage Check PWR_CTL2 or voltage on IC302 (Micom). on IC211 pin4? Check IC211 and replace. 3-45 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 63 12 VA supplied to IC205 pin9? Is there any voltage Check PWR_CTL3 or voltage on IC302 (Micom). on IC205 pin5? Check IC205 and replace. 3-46 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 64 3.3 VA supplied to IC209 pin5? Is there any voltage Check PWR_CTL5 or voltage on IC302 (Micom). on IC209 pin4? Check IC209 and replace. 3-47 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 65 5.1 VA supplied to IC212 pin5? Is there any voltage Check PWR_CTL5 or voltage on IC302 (Micom). on IC212 pin4? Check IC212 and replace. 3-48 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 66 12 VA supplied to IC208 pin2? Is there any voltage Check PWR_CTL5 or voltage on IC302 (Micom). on IC208 pin1? Check IC208 and replace. 3-49 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 67: Waveforms Of Major Check Point

    DGND TP401 D27 TP_PLLGP TP402 E27 TN_PLLGP TP403 N29 UATXD UATXD TP404 N30 UARXD UARXD C402 10pF Ref. 10pF/330ohm IC501 MT8581 X-TAL 27 MHz 3-50 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 68: System Part - 2 (System Memory)

    RAS_N_A L3 WE WE_N_A T2 RESET DDR3_RESET_A J1 NC J9 NC L1 NC L9 NC IC501 MT8581 WE# IC501 MT8581 CAS# IC501 MT8581 CLK 3-51 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 69: Audio Part (S/Pdif)

    3. AUDIO PART (S/PDIF) Optical 3.3V_NOR C723 C722 C721 100nF 100nF 100nF JK720 R720 JSTIB15 0OHM SPDIF_OUT C720 C724 C725 27pF 10uF 100nF DGND DGND MT8581_AUDIO_SPDIF 3-52 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 70: Hdmi Part

    D723 FL703 @pinC HDMITX20_CH1_M TX1_SHD 5 @pinC HDMITX20_CH1_P TX1+ FL704 DGND 4 @pinC HDMITX20_CH2_M TX2_SHD @pinC HDMITX20_CH2_P TX2+ CN720 DGND H_SDA H_SCL HDMI_CLK_N HDMI_0_N 3-53 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 71: Wiring Diagram

    WIRING DIAGRAM X pin : Harness X pin : FFC Optical HDMI Ethernet 45 Pin 5 Pin 9 Pin 15Pin 3-54 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 72: Block Diagram

    BLOCK DIAGRAM 3-55 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 73 3-56 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 74: Circuit Voltage Chart

    Vout : 1.067 V • Spec: IC402 3.3 V : 2.7 ~ 3.6 V Nand Flash • Measured Voltage: 3.3 V : 3.38 V 3-57 3-58 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 75: Printed Circuit Board Diagrams

    1. SMPS P.C. BOARD (TOP VIEW) (BOTTOM VIEW) NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock. 3-59 3-60 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 76 2. MAIN P.C. BOARD (TOP VIEW) 3-61 3-62 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 77: Main P.c. Board

    MAIN P.C. BOARD (BOTTOM VIEW) 3-63 3-64 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 78: Led P.c. Board

    3. LED P.C. BOARD (TOP VIEW) (BOTTOM VIEW) 3-65 3-66 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 79 3-67 3-68 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 80 8. Gear Loading ............................4-5 9. Guide ............................... 4-5 10. Deck PCB Assembly ..........................4-5 11. Motor Assembly ............................4-5 12. FFC Cable ............................... 4-5 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 81: Deck Mechanism Disassembly

    1) Turn the Plate to a counterclockwise direction and then lift up the Plate. 2) Remove the Plate. 2-2. Magnet Remove the Magnet. 2-3. Clamp Remove the Clamp. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 82: Tray Disc

    2) Pull the Tray Disc until it is locked. Tray Disc < Figure E > Note • When reassembling place the Guide as Figure E. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 83: Pick Up Assembly

    Base Up/Down in the (C) portion of the Guide as Figure G-2. • When reassembling insert the (D) portion of the Base Up/Down in the Hole (H2) of the Base Main as Figure G-3. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 84: Belt Loading

    1) Move the Guide in direction of arrow (A) as 12. FFC Cable Figure H-1. Remove the FFC Cable. 2) Separate the Guide from the Base Main. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 85 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 86 BARCODE SCAN GUIDE ..........................5-3 1. PURPOSE ..............................5-3 2. REQUIRED TO INSERT NEW BARCODE VALUE .................. 5-3 3. METHOD ..............................5-3 4. PROCEDURE ............................5-3 Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 87  ‘1’  ‘7’  ‘7’  ‘7’  ‘7’  ‘7’  Enter on the remote controller to display special mode. Move to the [1]Laser Check and click. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 88 4-1. Use 2D barcode scanner 1) Power on the set. 5) If barcode scan result is OK, it is shown as below. 2) Press settings Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 89 The folder include txt fi le as below. 2) Power on the set. 3) Insert USB with the set and If USB is recognized, barcode is downloaded automatically. Copyright © 2020 LG Electronics Inc. All rights reserved. Only for training and service purposes.

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