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LG 32LK610BPTB Service Manual
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LG 32LK610BPTB Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LB84J
MODEL : 32LK610BPTB
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL70522603 (1802-REV00)
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
32LK610BPVA
CONFIDENTIAL

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  • Page 1 LED TV SERVICE MANUAL CHASSIS : LB84J MODEL : 32LK610BPTB 32LK610BPVA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL70522603 (1802-REV00) Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 2 SPECIFICATION ..................6 SOFTWARE UPDATE ................9 BLOCK DIAGRAM ................. 10 EXPLODED VIEW .................. 18 DISASSEMBLY GUIDE ................20 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

    For My Media(Movie/Photo/Music List) or For SVC Ethernet Connect PCMCIA Card Slot PCMCIA slot * Only **LK54/LK55/57/61**PV* Head phone out Antenna, AV, Component, HDMI1/2, USB1/2 SPDIF out SPDIF out - 6 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 7 33.72 59.94 HDTV 1080i 1920×1080 33.75 60.00 HDTV 1080i 1920×1080 56.25 50.00 HDTV 1080p 1920×1080 67.43 59.94 HDTV 1080p 1920×1080 67.50 60.00 HDTV 1080p - 7 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 8: Hdmi Input

    1280 x 1024 @60Hz 63.98 60.02 VESA(SXGA) FHD only 1360 x 768 @60Hz 47.71 60.01 VESA(WXGA) 1920 x 1080 @60Hz 67.50 60.00 WUXGA(CEA 861D) FHD only - 8 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 9 (7) Click [Yes] : TV will be DC OFF → ON. and Tool Option. (8) After TV turned on, Check the updated SW Version and Tool Option. - 9 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 10: Block Diagram

    BLOCK DIAGRAM 1. MAIN - 10 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 11 2. I2C - 11 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 12 3. POWER - 12 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 13 DTV/Satellite IF Signal I_P_TU I_N_TU I_P_TU Q_N_TU I_N_TU Q_P_TU Q_N_TU Q_P_TU CVBS CVBS CVBS [SIF] 6 AAD_ADC_SIF TU_CVBS [IF_AGC_S] 4 IF_AGC_S IF_AGC [IF_AGC] 5 IFAGC - 13 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 14 5. AUDIO OUT - 14 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 15 6. HDMI CEC_REMOTE - 15 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 16 7. USB / WIFI / M-REMOTE - 16 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 17 8. LVDS 51 Pin INTERFACE - 17 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 18 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. - 18 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 19 EXPLODED VIEW (MODULE) IMPORTANT NOTICE MRC use only * MRC : Module Repair Center - 19 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 20: Disassembly Guide

    Assemble from top to bottom Please do not assembled press curved portion (b) Please press Latch Zone (a) ■ Press direction - Oblique direction from the outer surface - 20 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 21 SCREW : 5 ~ 7Kgf.cm Hook Latch1 Latch2 3. Disassemble Back Cover - It is easily removed by using stand when disassembling. Hold Pull - 21 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 22 * The EMI tape (6ea) should be reused, therefore, attach them to the C/bottom as a right figure (4) Disassemble the FFC cables from the S-PCB. * Open the black connector shield first * Separate FFC cable from the connector - 22 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 23 (ex, a flat head screwdriver) * Be careful about fragile latches (10) Disassemble the reflector sheet * Be careful about damaging the reflector sheet - 23 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 24 * Press the connectors from the both side, at the same time, pull the connector up to the direction of the upper side * Detach the whole LED array bars - 24 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 25 * Make sure that all the holes of sheet is fastened on the racks of cover bottom (3) Assemble the DP and sheet. - 25 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 26 (6) Attach the EMI pad on the panel and guide. (10) Attach the EMI tape. (6 EA) (7) Assemble the case top and flip the module. - 26 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 27 (12) Tighten the case top screw. (14 EA) (13) Assemble the Wi-fi and RF bracket. (14) Assemble the back cover. * Tighten the screws (6 EA) and cover the back cover - 27 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 28: Troubleshooting Guide

    TROUBLE SHOOTING GUIDE Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 29 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 30 ☞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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 31 ☞A18 Check various Check and No Video/ Normal voltages of Power replace No audio voltage? Board (13.2V…) MAIN B/D Replace Power Board and repair parts Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 32 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 33 Replace Main/T-con B/D error cable normal Request repair for external device/cable Check external External HDMI device and Replace Main/T-con B/D device/Cable error cable normal Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 34 Replace (Check normal operation of HDMI/ Screen Main /T-con External Input, Component, normal? RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 35: Power Error

    Measure voltage of each output of Power B/D Normal? Normal Replace Main B/D voltage? Normal Close Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 36 Normal Replace Main B/D Check Power B/D voltage? voltage ※ Caution Check and fix exterior Replace Power B/D of Power B/D Part Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 37 Reboot by SW down load function UNKNOWN No meaning (same as initial value) COMP_END OLED threshold voltage degradation(Compensation) completes. PNWASHDONE Power off by panel noise wash function complited. (OLED) Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 38 13.2V of Power Screen normal voltage Speaker off Board Cancel OFF Replace Power Board and repair parts Check Speaker Disconnection Replace MAIN Board disconnection Replace Speaker Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 39 (In case of Connect and check External Input Normal other external signal error) audio? device Check and fix external device Check and fix external device Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 40: Function Error

    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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 41 Replace MR18 Close Down load the Firmware * If you conduct the loop at 3times, change the M4. * INSTART MENU14.RF Remocon Test3. Firmware download Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 42 1pin Voltage? INSTART menu Main B/D ☞A24 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac Close Value is “NG”? Change the Wifi assy Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 43 Recognition error - 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 44 “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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 45 Revised date 16/16 Module Zoom part with Replace module damage exterior damage Cabinet Replace cabinet damage Remote control Replace remote control damage Stand Replace stand dent Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 46 Exchange Module (1) ~ (3) A-6/11 ~ A-8/11 Inverter/ Module Exchange T-Con (1) ~ (2) A-9/11 ~ A-10/11 Exchange Power Board(PSU) A-11/11 Continue to the next page Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 47 Check items after Main B/D replacement E. Etc Adjustment Test pattern – ADJ Key How to use JIG (Power B/D Diagnostic Smart Jig Multi Gender Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 48 Revised Check LVDS Content date C2333: 13V (Normal) No Video/Normal audio Reassemble After turning on the power and disassembling the case, check C2233 Voltage 13V Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 49 2. Enter into White Balance. 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 50 TUNER input signal strength checking method date  Advanced Channels Channel Tuning Manual Tuning When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 51 Content Version checking method date <ALL MODELS> 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 52 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 53 Revised Content connection diagram date As the part connecting to the external input, check the screen condition by signal Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 54 Check Link Cable(LVDS) reconnection condition date [Picture could be different Depending on model] Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 55 Screen darkness to disconnection of the FFC cable pin. G color transient due to poor FFC cable CABLE G Color Excessive connection A - 1/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 56 LVDS cable connection problem CABLE Color spread LVDS cable connection problem Due to foreign substance withi nLVDS CABLE Screen stop cable PIN A - 2/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 57 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 - 3/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 58 Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen A - 4/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 59 Screen picture spread problem Screen problem No problem at the initial stage. Right-side Main During Heat run, right-side picture picture problem problem A - 5/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 60 BLU internal foreign matter inflow MODULE Internal matter 6 block image broken MODULE Image broken MODULE Image broken Screen sync signal broken A - 6/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 61 BLU Vertical spreading on cube screen in no MODULE Vertical smear signal MODULE Over color Screen contour part brightly Over color A - 7/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 62 Center of the screen 1 block dark MODULE Screen darkness MODULE Vertical bar Center Vertical Bar Darkness at the MODULE bottom of the MODULE internal BLU breakage screen A - 8/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 63 T-Con is defective and the picture below T-CON image broken the screen is broken A - 9/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 64 The entire screen is dark and bit noise T-CON Image Broken occurs The entire screen is dark and bit noise T-CON Image Broken occurs A - 10/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 65 Appendix : Exchange Power Board (PSU) No Light No picture/Sound Ok A - 11/11 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 66 Established B. Power error _No power symptom date Revised Content Check front Power Indicator date ST-BY condition: On or Off Power ON condition: Turn Off Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 67 Established B. Power error _No power symptom date Revised Check power input voltage and ST-BY 3.5V Content date Check the VLED Check the DC 13.2V/20V Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 68 POWER OFF MODE checking method date <ALL MODELS> Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 69: Checking Method

    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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 70 3. Connect the tester P5600 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 71 2. Check the standby 3.5V on the terminal (③) 3. AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog Tester needle should move slowly, otherwise, it’s defective. Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 72 Checking order to check motion remote/wifi KEY1 Checking order 1.Check BT/Wifi cable condition between BT/Wifi assy & Main board. 2.Check the 3.5V on the terminal 1 pin Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 73 Standard Repair Process Detail Technical Manual Error Established E.Etc symptom date Revised Content How to use the Service remote control date 1. How to access the remote control Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 74 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 75 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 © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 76 - Record the R, G, B (GAIN, Cut) value of the color temperature before main board replacement. After replacing the main board, key in the recorded value. Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 77 You can view 11 types of patterns using the ADJ Key Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4. Video error (Classification of MODULE or Main-B/D!) Copyright © 2018 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 20 (1/19) Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 79: Main Board

    24 Marking Check UK74 28Pin 28Pin 12Pin 12Pin 28Pin UK75 Cable Connection UK78 Includes 49UJ63 SK79 17Y/18Y 16/18Y 16Y/17Y 16Y/17Y/18Y (SJ/UJ/UK/SK) (UH) (UH/UK) A20 (2/19) (UH/SJ) (LH/LJ/LK) Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 80 SJ95/UJ98 SJ85/UJ94 SJ80, UJ77 UJ75/UJ78 ’17 UJ65/UJ68 UJ63/UJ67 LJ61/LJ68 LJ55/LJ58 SK80/SK85/SK95 UK78/UK75/SK79 ‘18 UK63/UK64/UK65/UK7050 32LK61/62, 43/49LK61 B8, C8, E8 ‘18 OLED G8, W8 A20 (3/19) Copyright © 2018 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. A20 (4/19) Copyright © 2018 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 A20 (5/19) Copyright © 2018 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 A20 (6/19) Copyright © 2018 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. A20 (7/19) Copyright © 2018 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. A20 (8/19) Copyright © 2018 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 A20 (9/19) Copyright © 2018 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 A20 (10/19) can be judged as defective. Copyright © 2018 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 A20 (11/19) can be judged as defective. Copyright © 2018 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) A20 (12/19) can be judged as defective. Copyright © 2018 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) A20 (13/19) can be judged as defective. Copyright © 2018 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 A20 (14/19) can be judged as defective. Copyright © 2018 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 A20 (15/19) can be judged as defective. Copyright © 2018 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 A20 (16/19) can be judged as defective. Copyright © 2018 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 A20 (17/19) can be judged as defective. Copyright © 2018 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 A20 (18/19) can be judged as defective. Copyright © 2018 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 A20 (19/19) can be judged as defective. Copyright © 2018 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

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