LG 65EV960H Page 54 Service Manual Download

Page: 54 / 101

Contents of Standard Repair Process Detail Technical Manual

No.

Error symptom

Content

Page

Remarks

A. Video error_ No video/Normal
audio

Check Vx1 lock

Check White Balance value

A. Video error_ video error /Video
lag/stop

TUNER input signal strength checking
method

Version checking method

Tuner Checking Part

A. Video error _Vertical/Horizontal bar,
residual image, light spot

Connection diagram

A. Video error_ Color error

Check Link Cable (Vx1) reconnection
condition

Adjustment Test pattern - ADJ Key

A19

<Appendix>
Defected Type caused by Cable/
Main / Power / Module

Check Cable(1)

A-1/6

Check Cable(2)

A-2/6

Exchange Main Board (1)

A-3/6

Exchange Main Board (2)

A-4/6

Exchange Main Board (3)

A-5/6

Exchange Power Board (PSU)

A-6/6

Exchange Module

A-7/7

Only for training and service purposes.

Summary of Contents for 65EV960H

Page 1: ...r 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 CONFIDENTIAL Copyright 2017 LG Electronics ...

Page 2: ...ts reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 SOFTWARE UPDATE 9 BLOCK DIAGRAM 10 EXPLODED VIEW 11 DISASSEMBLY GUIDE APPENDIX TROUBLE SHOOTING GUIDE APPENDIX ...

Page 3: ...he set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as ...

Page 4: ...c charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrosta...

Page 5: ...oints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 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 3 Solder the connections CAUTION Maintain original spacing between the replaced component...

Page 6: ...rd Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA CE IEC specification EMC FCC ICES CE IEC speci...

Page 7: ...7 VESA VGA 4 800 600 37 879 60 31 40 VESA SVGA 5 1024 768 48 363 60 00 65 VESA XGA 6 1360 768 47 712 60 015 84 75 VESA WXGA 7 1152 864 54 348 60 053 80 VESA 8 1280 1024 63 981 60 020 109 00 SXGA Support to HDMI PC 9 1920 1080 67 5 60 158 40 WUXGA Reduced Blanking 10 1920 1080 135 120 only for UDTV 11 3840 2160 54 24 00 297 00 UDTV 2160P 12 3840 2160 56 25 25 00 297 00 UDTV 2160P 13 3840 2160 67 5 ...

Page 8: ...HDTV 1080P 17 1920 1080 33 71 29 97 79 120 HDTV 1080P 18 1920 1080 33 75 30 00 79 20 HDTV 1080P 19 1920 1080 56 25 50 00 148 5 HDTV 1080P 20 1920 1080 67 432 59 94 148 350 HDTV 1080P 21 1920 1080 67 5 60 00 148 50 HDTV 1080P 22 1920 1080 135 120 HDTV 1080P 23 1920 1080 134 86 119 88 HDTV 1080P 24 1920 1080 112 5 100 HDTV 1080P 25 3840 2160 53 95 23 98 296 703 UDTV 2160P 26 3840 2160 54 24 00 297 0...

Page 9: ...tarts and the settings are initialized 4 When the update is finished the TV automatically turns off and then turns on 5 Check the SW version to see if it has been updated and check the Tool option 2 Manual Download 1 Press the Menu button on the remote control to enter All Settings 2 With the focus on the GENERAL menu Press key 7 in succession 7 times and the TV Manager will pop up as shown below ...

Page 10: ... X_TAL 25MHz CVBS SIF TS EU Tuner COMP EU USB1 3 0 USB2 2 0 OCP 1 6A Main Board OCP 1 5A YPbPr UART PTC Debug US KEY HDMI1 2 0 HDMI2 2 0 Main Board ARC HDMI Sub Board I2S PWM FAN1 FAN2 Audio 1 2 AMP NTP7515D 0X56 0X54 Audio 3AMP NTP7515D 0X54 CPU Debug US I2C 0 I2C 4 Micom for motor controll RENESAS R5F100G Motor 1 2 3 4 PWM AUD_TW AUD_LRCH Ext IR LED AUX LAN TCON B D CABLE UART CI EU USB Pro idio...

Page 11: ...he 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 IMPORTANT SAFETY NOTICE 570 571 500 501 503 510 AR2 822 200 LV1 LV2 410 130 123 122 842 841 530 820 552 553 551 550 873 540 120 121 541 300 400 420 871 4...

Page 13: ... 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 1 1 1 2 AV BOX Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 14: ...ss y screw Refer Picture 2 2 Disassemble screw 6ea Middle Bottom Ass y Rear Cover Ass y screw Refer Picture 2 1 2 2 2 2 2 2 2 1 Front View Top View 2 1 2 1 2 1 2 1 2 1 2 2 2 2 2 2 2 2 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 15: ...assembled with latch 8ea Push the Cover Bottom Rear both side and pull as indicated below picture 툭 3 1 Cover Bottom Rear 툭 3 1 3 1 3 1 3 1 3 1 3 1 3 1 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 16: ...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 After disassemble Cover Bottom Rear Ass y CoverTop 4 1 4 2 4 3 4 4 4 4 4 4 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 17: ...t is fixing of Speaker R 5 2 Disassemble screw 4ea that is fixing of Speaker L 5 1 5 2 5 1 5 1 5 1 5 1 5 2 5 2 5 2 5 2 Speaker R Speaker L Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 18: ...sassemble Screw 4EA and cable 4ea 6 2 Disassemble Sub Main Sub Main 6 1 6 2 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 Gap Pad Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 19: ...ble cable from holder that is assembled Power Shield right side 7 2 Disassemble Power Cable 2ea 7 1 7 2 7 1 7 2 7 3 Power Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 20: ...e of Power Cord 8 3 Disassemble Power with holding end of the power PCB When to do this attend electronic shock Power Cord 8 1 8 2 8 3 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 21: ...ation sheet and Disassemble screw 1ea Refer the below picture 9 4 Pull the Gap Pad and Disassemble screw 1ea Refer the below picture 9 1 9 1 9 3 9 2 9 1 9 4 9 1 9 1 9 2 9 3 9 4 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 10 1 10 1 Power Bottom Shield Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 23: ...e Cable 2ea from Main PCB to T Con PCB 11 3 Disassemble Cable 2ea After disassembled Power Bottom Shield Main PCB T Con PCB 11 1 11 2 11 3 11 1 11 2 11 3 11 3 11 3 11 2 11 2 11 1 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 24: ... fixing 12 3 Disassemble T Con and Main PCB Main PCB T Con PCB 12 1 12 2 12 1 12 1 12 1 12 1 12 1 12 1 12 2 12 2 12 2 12 2 12 3 Gap Pad Gap Pad Gap Pad After disassembled Power Bottom Shield Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 25: ... cable from holder and Disassemble cable 2ea to fixing LED Lighting After Disassemble T Con Main PCB Middle LED Lighting 13 1 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 26: ... right side of LED Lighting to disassemble LED Lighting Latch is 4ea Refer the below picture 14 1 14 1 14 1 14 1 Disassemble Direction LED Lighting 14 1 14 2 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 28: ...Tape 2ea from Middle to Bottom Plate 16 3 Disassemble Middle cabinet 16 1 16 1 16 1 16 1 16 1 After disassemble LED Lighting Power Cord 16 1 16 1 16 1 16 1 16 1 16 2 Bottom Plate 16 3 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 29: ...rew 1ea and indicator 17 3 Disassemble cable to connecting Wifi from Cover Bottom and disassemble Wifi bracket After disassemble Middle 17 1 17 2 17 3 Cover Bottom Joystick Indicator Wifi 17 1 17 2 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 30: ...g 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: ... Left Right Disassembly Guide for Assembly Cover Top Rear of Set Front of Set Caution When removing Top Cover and Moving Ass y do not hold the drive shaft and switch by hand 19 1 19 1 19 1 19 2 19 2 19 2 19 2 19 2 19 2 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 32: ...y pulling it towards the front Rear of Set Front of Set Rear of Set Front of Set Rib Rib Rib Rib of moving Ass y is inserted into projection part shape of Cover Top Disassembly Guide for Assembly Cover Top Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 33: ...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 Disassembly Guide for Assembly Cover Top Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 34: ...isassemble screw 4EA that is fixing Sliding Cover Handle with care and slowly to avoid damage Do not force to the product strongly 22 1 21 2 21 2 21 2 21 2 Disassembly Guide for Assembly Cover Top Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 35: ...ssy Normal Abnormal When replacing the Sliding Cover or Top cover Check that there is no color difference between Cover Top and Sliding Cover Sliding Cover Cover Top Caution for reassembly Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 37: ...ff while viewing power auto on off 7 8 8 C Audio error No audio Normal video 9 9 Wrecked audio discontinuation noise 10 10 D Function error Remote control Local switch checking 11 MR15RA operating checking 12 11 12 Wifi operating checking 13 13 External device recognition error 14 14 E Noise Circuit noise mechanical noise 15 15 F Exterior error Exterior defect 16 First of all Check whether there i...

Page 38: ...Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date Error symptom A Video error No video Normal audio A9 A9 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D Vx1 Cable Speaker Cable IR B D Cabl...

Page 39: ...o audio Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A9 Established date Revised date Error symptom 2 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 40: ...ing By using Digital signal level meter By using Diagnostics menu on OSD All Settings Channels Channel Tuning Manual Tuning Check the Signal Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N Normal Picture Y Close N A4 Standard Repair Process Established date Revised date Error symptom 3 N Y Close N S W Upgra...

Page 41: ...heck external device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A6 N Y End Replace module Request repair for external device cable Color error Check Test pattern A15 A7 Standard Repair Process Established date Revised date Error symptom 4 Copyright 2017 LG Electronics Inc All rights reserved On...

Page 42: ...DVI by connecting Jig pattern Generator Set top Box etc N Y Replace Main B D Module Screen normal Check screen condition by input External Input AV HDMI DVI Request repair for external device HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main B D Module Screen normal N...

Page 43: ...asure voltage of each output of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 7 8V Replace Power B D N Y Normal voltage Replace Power B D Y A8 A9 A9 A9 Standard Repair Process Established date Revised date Error symptom 6 Stand By Red or Turn On Operating Turn Off Close Copyright 2017 LG Electronics Inc All rights reserved Only for training and service ...

Page 44: ...place Main B D CPU Abnormal If Power Off mode is not displayed Check Power B D voltage Y N Replace Main B D Normal voltage Replace Power B D Replace Power B D N Y Normal End Caution Check and fix exterior of Power B D Part A10 A9 Established date Revised date Error symptom Standard Repair Process 7 Abnormal 1 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purpo...

Page 45: ...Check fail after multi power on Check Change Power B D CPUABNORMAL If the CPU attempts to reset in case of abnormal operation and Shut Down in case of failure Check Change Main B D NO POLING Power off when receiving no ack RESULT TV power off on Reboot CONDITION There is no I2C response from CPU for 15 seconds Check Change Main B D CPUCMD Power off by main SoC command Check Change Main B D INV_ERR...

Page 46: ...ce Power Board and repair parts Check Speaker disconnection N Y connecting Speaker Replace MAIN Board End C Audio error No audio Normal video A11 A12 A9 Disconnection Established date Revised date Error symptom Standard Repair Process 9 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 47: ...External Input Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 20V Replace Main B D In case of External Input signal error Check and fix external device Replace Main...

Page 48: ...m Check Replace Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A13 Normal Voltage Close N N Check 7 8V on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A9 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A13 Replace Main B D Y A13 Standard Repair Process Established date Revised date Error sympt...

Page 49: ...s show ok message N N N Y Replace MR15RA Turn off on the set and press the wheel Press the back key about 5sec If you conduct the loop at 3times change the MR15RA Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 12 RF Remocon Test Receiver Firmware download Y RF Receiver ver is 00 00 N A14 A4 A4 Close Close Close Close 12 Cop...

Page 50: ...r Wifi cable connection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date Error symptom 13 Change the Wifi assy Normal Voltage Y Y N Replace Main B D Wi Fi Mac value is NG N A14 A4 A4 A14 Close Close Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 51: ...and fix external device cable HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date Error symptom Standard Repair Process 14 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 52: ...ceed as shown in the solution manual For models without any fix information provide the description Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise Established date Revised date Error symp...

Page 53: ...lace cabinet Replace remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date Error symptom Standard Repair Process 16 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 54: ... 6 A Video error _Vertical Horizontal bar residual image light spot Connection diagram A6 7 A Video error_ Color error Check Link Cable Vx1 reconnection condition A7 8 Adjustment Test pattern ADJ Key A19 9 Appendix Defected Type caused by Cable Main Power Module Check Cable 1 A 1 6 Check Cable 2 A 2 6 Exchange Main Board 1 A 3 6 Exchange Main Board 2 A 4 6 Exchange Main Board 3 A 5 6 Exchange Powe...

Page 55: ... in menu when there is no audio A11 14 Voltage and speaker checking method when there is no audio A12 15 D Function error Remote control operation checking method A13 16 Motion Remote operation checking method A14 17 E Etc How to use the Service remote control A15 A17 18 Check items after Main B D replacement A18 19 Adjustment Test pattern A19 20 How to use JIG Power B D Diganostic Smart Jig Multi...

Page 56: ...d date A1 Error symptom Content Check Vx1 lock A Video error_No video Normal audio Check a voltage of R7624 after turn on the TV If the voltage is low Vx1 is locked OK R7624 0 V A1 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 57: ...ideo Normal audio A2 Entry method 1 Press the ADJ button on the remote control for adjustment 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: ...o error_Video error video lag stop A3 Established date Revised date Error symptom Content A3 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: ...Video error video lag stop 1 Checking method for remote control for adjustment Version A4 Established date Revised date Error symptom Content A4 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: ...Revised date Error symptom Content A5 Checking method 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: ...ror _Vertical Horizontal bar residual image light spot A6 Established date Revised date Error symptom Content A6 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: ...nnection condition A Video error_Color error A7 Established date Revised date Error symptom Content A7 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: ... FFC cable CABLE R Color Excessive Color is Excessive due to FFC Cable Contact CABLE Screen darkness screen is dark due to poor contact due to disconnection of the FFC cable pin CABLE G Color Excessive G color transient due to poor FFC cable connection Pin 단선 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 64: ...ad LVDS cable connection problem CABLE Color spread LVDS cable connection problem CABLE Screen stop Due to foreign substance withi nLVDS cable PIN Appendix Examples of Symptoms Image error Check for poor cable contact Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 65: ...ain Screen noise Broken screen due to Main IC problem Main Dark picture Dark left side screen Main Broken picture Top bottom screen part Picture problem due to tuner Inner side quality problem Appendix Examples of Symptoms Main Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 66: ...nner Main Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen Check parts by symptom Appendix Examples of Symptoms Main Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 67: ...n problem Right side screen problem Main LG logo Screen problem Screen picture spread problem Main Right side picture problem No problem at the initial stage During Heat run right side picture problem Check parts by symptom Appendix Examples of Symptoms Main Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 69: ...ical stain Noise Verical line defect Image stain Horizontal line Multi Verical line Defect Screen darkness A 7 7 Check parts by symptom Appendix Examples of Symptoms OLED Module Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 70: ...ck front Power Indicator B Power error _No power A8 Established date Revised date Error symptom Content A8 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: ...or symptom Content Check power input voltage and ST BY 3 5V B Power error _No power A9 Check the DC 12VM line for ST BY Voltage ST BY 7 8V Normal 12V Power To Main B d Power To Module P202 P201 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 72: ...f whiling viewing A10 Established date Revised date Error symptom Content A10 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: ...io Normal video A11 Established date Revised date Error symptom Content A11 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 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 74: ...V connector of Main Board Measure the 20V input voltage supplied from Power Board If there is no input voltage remove and check the connector 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 1 SPK_R _FT 2 SPK_R _FT 3 SPK_L _FT 4 SPK_L _FT 5 SPK_R _CT 6 SPK_R _CT 7 SPK_L _CT 8 SPK_L _CT Copyright 2017...

Page 75: ...in ON condition an Analog Tester needle should move slowly otherwise it s defective Pin Pin name 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 GND 5 WOL WIFI_POWER_ON 6 3 5V_WIFI 7 COMBO_RESET_JACK 8 GND 9 BT_WAKEUP_DEVICE_JACK 10 BT_WAKEUP_HOST_JACK 11 GND 12 GND 13 NC 14 NC 15 NC 16 EYE_SDA_JACK 17 EYE_SDA_JACK 18 GND 19 IR_JACK 20 LED_R_JACK 21 GND 22 3 5V_ST 23 KEY2_JACK 24 KEY1_JACK 25 GND IR E...

Page 76: ... 6 Wifi BT Front Wifi BT Rear Checking order to check motion remote wifi Pin Pin name 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 GND 5 WOL WIFI_POWER_ON 6 3 5V_WIFI 7 COMBO_RESET_JACK 8 GND 9 BT_WAKEUP_DEVICE_JACK 10 BT_WAKEUP_HOST_JACK 11 GND 12 GND 13 NC 14 NC 15 NC 16 EYE_SDA_JACK 17 EYE_SDA_JACK 18 GND 19 IR_JACK 20 LED_R_JACK 21 GND 22 3 5V_ST 23 KEY2_JACK 24 KEY1_JACK 25 GND Copyright 2017 ...

Page 77: ... How to use the Service remote control E Etc A15 Established date Revised date Error symptom Content A15 0 4 1 3 0 4 1 3 1 How to access the remote control Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 78: ...a Zoom Aucto Screen 4 3 16 9 PSM Changes in the order of Bright Picture Easy Picture Cinema Spots Game Custom PIcture1 Custom Picture2 Bright Picture SSM Added Function Standard user music cinema sports game standard user PIP Picture In Picture is activated TEXT Access to the Power Only mode CAP Broadcasting caption on off MPX Stereo mode mono stereo foreign language access Used when in factory mo...

Page 79: ... Off White Red Green Blue Black Pattern Off Change X STUDIO Added function HDD USB external device s HDD screen is activated MENU User function gets activated EXIT Exit from the current mode TIME SHIFT Added function Moves forward backward of recorded contents MUTE Mute function 0 Volume IN STOP SET to factory mode VOL Volume Up Down CH Channel Up Down AV1 2 3 Added function Connects to external i...

Page 80: ... L Key in the model name and serial number after checking the ID label on the back cover 1 Press the Service remote control instart Key 2 Press the Service remote control ADJ Key No 13 Select White Balance 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 reser...

Page 81: ...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 A19 Established date Revised date Error symptom Content A19 1 2 3 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 83: ...LH LJ 16Y UH 17Y SJ UJ 28Pin 24Pin 18Pin 24Pin 24Pin 24Pin 28Pin 28Pin 18Pin 28Pin 28Pin 12Pin 12Pin 28Pin 12 13 14Y Smart JIG connector applied 24Pin 24Pin NC Includes 49UJ63 Defect diagnosis Power Board Main Board 16Y OLED 17Y OLED A 20 2 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 84: ...H66 LH60 LH54 17 OLED B7 C7 E7 G7 W7 17 LED SJ95 UJ98 SJ85 UJ94 SJ80 UJ77 UJ75 UJ78 UJ65 UJ68 UJ63 UJ67 LJ61 LJ68 LJ55 LJ58 15Y 16Y 17Y OLED Model 16Y 17Y LED Model Existing 12Y 13Y 14Y 15Y LED models included 15Y 16Y 17Y OLED 16 17 Y LED model Power diagnosis function newly added A 20 3 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 85: ... POWER A 2013 Power Board Muitl Gender How to Connect 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: ...is can be made only if it is set correctly 24V Power Board Change the switch to 24V of Smart Jig Voltage 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 24V 24V 20V 20V 13 2V 18V 24V A 20 5 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purpos...

Page 87: ...r Cable connector to the Muitl Gender JIG 24Pin connector 3 1 2 Check power board voltage Switch the product S W in JIG to LCD LCD MODEL Check the power voltage and switch 24V to the correct voltage Fix the LCD MODEL switch to 24V Smart JIG 4 A 20 6 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 88: ...Diagnostic method 2 5 6 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: ... Switch the LCD MODEL S W to 24V by checking the power voltage Fix the LCD MODEL switch to 24V Smart JIG 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: ...ch to 24V Smart JIG Disconnect the Main Board 24Pin Power Cable connector Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector When the OK LED 24V 12V turns on Power Board is normal A 20 9 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 91: ...Board 24Pin Power Cable connector Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector 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 10 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 92: ...Board 24Pin Power Cable connector Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector 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 11 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 93: ...Muitl Gender JIG 28Pin connector Switch the LCD MODEL S W to 20V by checking the power voltage Fix the LCD MODEL switch to 20V Smart JIG 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 12 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 94: ... Gender JIG 28Pin connector Switch the LCD MODEL S W to 20V by checking the power voltage Fix the LCD MODEL switch to 20V Smart JIG 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 13 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 95: ...in Board 18Pin Power Cable connector Connect the 18Pin Power Cable connector to the Muitl Gender JIG 24Pin connector 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 14 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 96: ...in Board 28Pin Power Cable connector Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector When the OK 24V 12V LED turns on Power Board is normal When the NG LED turns on the Power Board can be judged as defective A 20 15 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 97: ...Main Board 28Pin Power Cable connector Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector 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 16 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 98: ...in Board 12Pin Power Cable connector Connect the 12Pin Power Cable connector to the Muitl Gender JIG 12Pin connector 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 17 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 99: ... Board 12Pin Power Cable connector Connect the 12Pin Power Cable connector to the Muitl Gender JIG 24Pin connector 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 18 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 100: ... Board 28Pin Power Cable connector Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector 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 19 19 Copyright 2017 LG Electronics Inc All rights reserved Only for training and service purposes ...

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