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LG 65EV960H Service Manual
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LG 65EV960H Service Manual

Chassis : ea7ah
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OLED TV
SERVICE MANUAL
CHASSIS : EA7AH
MODEL : 65EV960H
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL70400101 (1708-REV00)
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
65EV960H-UA

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Summary of Contents for LG 65EV960H

  • 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 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 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 - 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 UHF : 14 ~ 69 DTV : 2 ~ 69 CATV : 1 ~ 135 CADTV : 1 ~ 135 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 UDTV 2160P 4096*2160 112.5 50.00 UDTV 2160P When HDMI1,2 UHD DEEP COLOUR ON 4096*2160 134.86 59.94 593.407 UDTV 2160P 4096*2160 60.00 UDTV 2160P - 8 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 9 (4) After download is completed, reboot is performed. (5) Check the SW version to see if it has been updated and check the Tool option. - 9 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 10 Block Diagram - 10 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 11 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 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 (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 (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 (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 (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 (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 (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 various voltages Check and of Power Board (Main) Normal No Video/ replace No audio voltage? (20V, 12V…) MAIN B/D 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 HDMI device and Replace Main B/D /Cable error cable normal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 42 (Check normal operation of HDMI/ Main B/D / External Input, Component, normal? Module RGB and HDMI/DVI by Normal connecting Jig, pattern screen? Generator ,Set-top Box etc. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 43 Measure voltage of each output of Power B/D Normal? Normal Replace Main B/D voltage? Close Normal Check ST-BY (7.8V) voltage? ☞A9 Replace Power B/D Replace Power Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 44 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 45 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 © 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 connecting 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 Replace MR15RA Close Down load the Firmware •If you conduct the loop at 3times, * INSTART MENU12.RF Remocon Test Receiver change the MR15RA. Firmware download Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 50 INSTART menu Voltage? 1pin Main B/D ☞A14 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value Close is “NG”? Change the Wifi assy Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 51 Recognition error signal - 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 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 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote control Replace remote control damage Stand Replace stand dent Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 54 Exchange Main Board (2) A-4/6 Defected Type caused by Cable/ Main / Power / Module Exchange Main Board (3) A-5/6 Exchange Power Board (PSU) A-6/6 Exchange Module A-7/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 55 How to use the Service remote control A15-A17 Check items after Main B/D replacement E. Etc Adjustment Test pattern How to use JIG (Power B/D Diganostic Smart Jig Multi Gender) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 56 Check Vx1 lock Content date R7624 : 0[V] Check a voltage of R7624 after turn on the TV. If the voltage is low, Vx1 is locked.(OK) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 57 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 58 Content date All Settings  Channels  Channel Tuning  Manual 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 59 OLED TV 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 60 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 61 Revised Content OLED TV 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 62 A. Video error_Color error symptom date Revised Content Check Link Cable (Vx1) reconnection condition date 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 63 Screen darkness to disconnection of the FFC cable pin. G color transient due to poor FFC cable CABLE G Color Excessive connection A - 1/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 64 LVDS cable connection problem CABLE Color spread LVDS cable connection problem Due to foreign substance withi nLVDS CABLE Screen stop cable PIN A - 2/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 65 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 - 3/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 66 Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen A - 4/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 67 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 - 5/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 68 Appendix : Exchange Power Board (PSU) No Light No picture/Sound Ok A - 6/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 69 Image broken Bright Dot Image stain Verical line defect Horizontal defect and Verical stain Noise Horizontal line Multi Verical line Defect Screen darkness A - 7/7 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 70 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 71 Content date Check the DC 12VM line for ST-BY Voltage (ST-BY : 7.8V, Normal : 12V) Power To Main B’d P202 Power To Module P201 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 72 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 73 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 74 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 75 2. Check the standby 3.5V on the terminal 22 pin (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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 76 Checking order to check motion remote/wifi Checking order 1.Check BT/Wifi cable condition between BT/Wifi assy & Main board. 2.Check the 3.5V on the terminal 6 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 77 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 78 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 79 Connects to external input 1,2,3 COMP1,2 (Added Connects to Component 1,2 function) HDMI1,2,3,4 Connects to HDMI 1,2,3,4 (Add function) DVI (Add function) Connects to DVI Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 80 - 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 81 You can view 11 types of patterns using the CH+ or - 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 © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 82 Smart JIG Power Diagnosis Muitl Gender Guide (P/N : RAD32507801) (P/N : RAD33187801) A 20 (1/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 83 24Pin 28Pin (OLED) 24Pin 28Pin 16Y/17Y (UH/UJ) 18Pin 28Pin 28Pin 12Pin 12Pin 28Pin Includes 49UJ63 16Y/17Y 16Y/17Y (SJ/UJ) (UH) A 20 (2/19) (UH) (UH/SJ) (LH/LJ) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 84 OLED ‘16 UH95/UH96 UH85/UH93 UH77/UH87 UH75/UH76 UH65/UH68 LH68, LH66, LH60,LH54 ‘17 OLED SJ95/UJ98 SJ85/UJ94 SJ80, UJ77 UJ75/UJ78 ’17 UJ65/UJ68 UJ63/UJ67 LJ61/LJ68 LJ55/LJ58 A 20 (3/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 85 “A: 2013 LCD POWER” 2014 ▶ Connect the Muiti Gender to the connector (black) as shown in picture 2 of the Smart JIG. A 20 (4/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 86 - 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 A 20 (5/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 87 ▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector A 20 (6/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 88 ▶ 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. A 20 (7/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 89 ▶ 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. A 20 (8/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 90 ▶ 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 A 20 (9/19) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 91 Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A 20 (10/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 92 Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A 20 (11/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 93 ▶ When the NG LED turns on, the Power Board ▶ Fix the LCD MODEL switch to 20V.(Smart JIG) A 20 (12/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 94 ▶ When the NG LED turns on, the Power Board ▶ Fix the LCD MODEL switch to 20V.(Smart JIG) A 20 (13/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 95 Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A 20 (14/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 96 Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A 20 (15/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 97 Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A 20 (16/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 98 Muitl Gender JIG 12Pin connector ▶ When the NG LED turns on, the Power Board A 20 (17/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 99 Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board A 20 (18/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 100 Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board A 20 (19/19) can be judged as defective. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.

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65ev960h-ua