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Copyright ©

LG Electronics Inc. All rights reserved.

Only for training and service purposes.

USB1

(SIDE)

USB3

.0

_1

_D

M0

USB3

.0_1_DP0

USB2

(SIDE)

IC1600

5V

/ 6A

+5V_USB_

1

+5V_USB_

2

/USB_OCD

2

USB_CT L2

USB_CTL2

/USB_OCD

2

W

IFI_D

M

W

IFI_D

P

USB2

_2

_D

M0

USB2

_2

_D

P0

RENESAS

MICO

M(IC3000)

UART

0_

TXD/GPIO10

5

UART

0_

RXD/GPIO

10

6

IC_T

X

IC_R

X

IC7200

MAX3232CDR

USB2

.0

WIFI

Comb

o

BT_RESET

BT_WAKEUP_DE

VI

CE

BT_WAKEUP_HOST

OC

P

IC4301

OC

P

IC4501

+5V_NORMAL

+5V_NORMAL

JK4

400

JK4

200

USB2

.0

M

ai

n

I

C

USB2

.0

_2

_D

M1

USB2

.0_2_DP1

OC

P

IC4700

+5V_NORMAL

USB3

(Rear)

+5V_USB_

3

USB_CTL2

/USB_OCD

2

JK4

600

USB2

.0_3

_D

M0

USB2

.0

_3

_D

P0

USB2

.0

8. USB / WIFI / M-REMOTE / UART

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Содержание 86UK6570AUA

Страница 1: ...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 2018 LG Electron...

Страница 2: ...l rights 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 18 DISASSEMBLY 19 TROUBLE SHOOTING GUIDE APPENDIX ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 6: ...t 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC 4 General Specification No Item Specification Remark 1 Market North America 2 Broadcasting system ATSC NTSC M 64 256 QAM 3 Available Channel VHF 02 13 UHF 14 69 DTV 02 69 CATV 01 135 CADTV 01 135 4 Receiving system Digital ATSC 64 256 QAM...

Страница 7: ...Blanking 10 1920 1080 135 120 297 UDTV 1080P 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 30 00 297 00 UDTV 2160P 14 4096 2160 53 95 23 97 296 70 UDTV 2160P 15 4096 2160 54 24 297 UDTV 2160P No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 1 720 480i 15 73 59 94 13 50 SDTV DVD 480I 525I 2 720 480i 15 75 60 00 13 51 SDTV DVD 480I 5...

Страница 8: ...6 HDTV 1080P 17 1920 1080p 33 71 29 97 79 120 HDTV 1080P 18 1920 1080p 33 75 30 00 79 20 HDTV 1080P 19 1920 1080p 56 25 50 00 148 5 HDTV 1080P 20 1920 1080p 67 43 59 94 148 35 HDTV 1080P 21 1920 1080p 67 5 60 00 148 50 HDTV 1080P 22 1920 1080p 112 5 100 297 00 UDTV 1080P 23 1920 1080p 134 86 119 88 296 70 UDTV 1080P 24 1920 1080p 135 00 120 297 UDTV 1080P 25 3840 2160p 53 95 23 98 296 70 UDTV 2160...

Страница 9: ... About This TV page for update 5 TV is updating 6 After finished the update below Pop up appear 7 Click Yes TV will be DC OFF ON 8 After TV turned on Check the updated SW Version and Tool Option 2 NSU This Function is needed to connect to the internet 1 Menu All Settings General About This TV 2 Click CHEK FOR UPDATES system check newest version 3 Click DOWNLOAD AND INSTALL 4 TV is updating 5 After...

Страница 10: ...UT ETHERNET I2C 1 SUB ASSY IR KEY ST BY LED WIFI BT Combo USB_WIFI CVBS SIF HDMI3 HDMI 2 0 USB2 2 0 HDMI2 ARC HDMI 2 0 Vx1 Interface USB3_0 USB2_2 PHY2_RX0N PHY1_RX0N HDMI4 HDMI 2 0 PHY0_RX0N USB3 2 0 USB2_1 Side Rear TU6701 X101 I2C 0 I2C 5 Side Rear IC400 IC102 IC8800 I2S IC5300 IC3000 X3001 JK4200 JK4400 JK4600 JK3101 JK3102 JK3103 JK3104 TS Rear HP AV Rear AV Audio Out 86UK74 86UK65 DDR4 2666 ...

Страница 11: ...erved Only for training and service purposes 2 I2C SCL0 SDA0 100Ω 3 3KΩ Main IC 3 3V_NORMAL 3 3KΩ 33Ω IC102 NVRAM 3 3V_NORMAL IC5300 NTP7518 TUNER SCL4 SDA4 33pF SCL5 SDA5 1 8KΩ SCL1 SDA1 IC3000 MICOM 33Ω 3 3KΩ 3 3V_NORMAL 33Ω 47pF 3 3V_TU SCL3 SDA3 ...

Страница 12: ... IC1400 3A IC1100 13V IC1700 4A NTP7518 DDR3 3 3V_NORMAL 3 5V_ST 1 8V_IO IC2100 3A 0 9V_CP U 0 9V_CORE A13V USB1 2 0 USB2 2 0 PANEL IC1500 3 5A 1 5V_DDR MICOM IR_KEY ETHERNET WIFI 3 5V_WO L WIFI_EN Main IC Main IC Main IC6900 2A 0 9V_DDR C4TX NVRAM H P AMP 1 1V_DEMOD TUNER NTP7518 MAX3232CDR IC2300 2A 0 9V DDR Main IC USB1 2 0 IC1501 3 5A IC1502 1A DDR4 DDR4 1 2V_DDR 2 5V_VPP Main IC ...

Страница 13: ...ining and service purposes 4 Tuner SCL5 SDA5 AAD_ADC_SIF Tuner I2C_SCL_5_TU 1 I2C_SDA_5_TU 2 TU_CVBS_TU 4 IF_AGC_TU 5 TU_SIF_TU 6 IF N 7 IF P 8 TU_CVBS IF_AGC CVBS_IN1 IFAGC 3 3V_TU 1 2KΩ Main IC 3 3V_TU 3 3 3V_TU 33 Ω TU_SIF DMD_TADC_INN IF_N_TU DMD_TADC_INP IF_P_TU ...

Страница 14: ...Video Audio IN Main IC CVBS_IN2 Tuner Jack Side IC Side JK3401 AV_CVBS_IN AV_L AV_R AV1_CVBS_IN_IC TU_CVBS_TU TU_SIF_TU IF_P N_TU CVBS_IN1 AAD_ADC_SIF DMD_ADC_INP DMD_ADC_INN TU_CVBS TU_SIF IF_P N FE_DEMOD1 2_TS_CLK SYNC VAL FE_DEMOD1 2_TS_CLK SYNC VAL TP0CLK VLD SYNC Y1_IN COMP2_Y_IN_IC JK3402 ...

Страница 15: ..._ADC_SIF HP_LOUT HP_ROUT HEAD PHONE LPF AUDA_OUTL_CH1 AUDA_OUTR_CH1 TUNER_SIF IC3000 MICOM AMP_MUTE GPIO23 AMP_RESET_N JK3403 JK6200 LPF Front_L Front_R DACSCK GPIO81 Main IC SDA0 GPIO138 SCL0 GPIO139 AUD_LRCK AUD_LRCH IC6300 EAN62668301 I2C_SDA_0_AMP1 I2C_SCL_0_AMP1 DACLRCH GPIO82 DACLRCK AUD_SCK SIDE_HP_MUTE AUAD_R_CH1_IN AUAD_L_CH2_IN JK3401 6 Audio Out ...

Страница 16: ...00 32 768kHz HDMI1 SIDE HDMI2 0 DDC_SCL_1 DDC_SDA_1 TMDS Link 8bits DDC_SCL_2 DDC_SDA_2 TMDS Link 8bits DDC_SCL_4 DDC_SDA_4 TMDS Link 8bits TMDS DATA 6bits DATA0 1 2 TMDS CLK 2bits TMDS Link 8bits HDMI_CEC_MICO M Q3001 DDC_SCL_1 DDC_SDA_1 JK3104 JK3102 JK3101 HDMI3 SIDE HDMI2 0 JK3103 DDC_SCL_3 DDC_SDA_3 TMDS Link 8bits DDC_SCL_2 DDC_SDA_2 PHY0_ARC_OUT DDC_SCL_3 DDC_SDA_3 DDC_SCL_4 DDC_SDA_4 7 HDM...

Страница 17: ...2 WIFI_DM WIFI_DP USB2_2_DM0 USB2_2_DP0 RENESAS MICOM IC3000 UART0_TXD GPIO105 UART0_RXD GPIO106 IC_TX IC_RX IC7200 MAX3232CDR USB2 0 WIFI Combo BT_RESET BT_WAKEUP_DEVICE BT_WAKEUP_HOST OCP IC4301 OCP IC4501 5V_NORMAL 5V_NORMAL JK4400 JK4200 USB2 0 Main IC USB2 0_2_DM1 USB2 0_2_DP1 OCP IC4700 5V_NORMAL USB3 Rear 5V_USB_3 USB_CTL2 USB_OCD2 JK4600 USB2 0_3_DM0 USB2 0_3_DP0 USB2 0 8 USB WIFI M REMOTE...

Страница 18: ... parts are identified by in the 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 400 540 521 820 LV1 530 120 121 411 LV2 200A HP1 HW1 HS1 700 AR2 710 200T 901 902 570 950 500 A10 20...

Страница 19: ... LG Electronics Inc All rights reserved Only for training and service purposes DISASSEMBLY GUIDE A B B B B B B B B B B B B B B B B B B B B 1 Remove screw of marking A 2 Pull out Wafer 1 Remove 20 screws of marking B ...

Страница 20: ...l rights reserved Only for training and service purposes 1 Lift B C in bottom Be careful of the sharp edges Wear gloves when working 1 Slide B C to arrow direction Top and remove B C Be careful of the sharp edges Wear gloves when working ...

Страница 21: ...ghts reserved Only for training and service purposes 1 Remove 4 tape of marking C 2 Remove gasket of marking D 3 Pull out harness in Hook marking E 1 Remove 7 Screws of marking F 2 Pull out harness marking G D C C C C E E E E F F F F F F F G ...

Страница 22: ...G Electronics Inc All rights reserved Only for training and service purposes 1 Remove 8 screws of marking N 2 Remove speaker L R of marking O 1 Pull out harness marking H M J J H I I K L K L M M M N N N N N N N N O O ...

Страница 23: ...aining and service purposes P P P P Q Q 1 Remove 4 Screws of marking P 2 Remove Stand Supporter marking Q 1 Fix 7 screws of marking F F F F F F F F Make sure of inserting protruding part of Bottom cover to hole of case top according to arrow part in fig 8 positions ...

Страница 24: ...ning and service purposes 1 Fix 20 screws of marking B 2 Insert Wafer of marking R 3 Fix Screw of marking A B B B B B B B B B B B B B B B B B B B B A R When assemble the rear cover cover from bottom side or cover horizontally and then push the latch on upper 8 points ...

Страница 25: ...TROUBLE SHOOTING GUIDE Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 26: ...off 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 MR18 operating checking 12 11 12 Wifi operating checking 13 14 External device recognition error 14 15 E Noise Circuit noise mechanical noise 15 16 F Exterior error Exterior defect 16 First of all Check whether there is...

Страница 27: ...ts End 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 1 16 Error symptom A Video error No video Normal audio A18 A1 A18 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS or EPI Cable ...

Страница 28: ...o 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 A18 Established date Revised date 2 16 Error symptom 2 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 29: ...ain B D Check Tuner soldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD Advanced 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 Establishe...

Страница 30: ...Check external device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main T con B D Replace Main T con 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 A8 A7 Standard Repair Process Established date Revised date 4 16 Error symptom 4 Copyright 2018 LG Electronics Inc All r...

Страница 31: ...y connecting Jig pattern Generator Set top Box etc N Y Replace Main T con B D Screen normal Check screen condition by input External Input Component HDMI DVI Request repair for external device Component error 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 T con B D...

Страница 32: ...oltage 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 3 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A18 A18 Standard Repair Process Established date Revised date 6 16 Error symptom 6 Stand By Red or Turn On Operating Turn Off Close Copyright 2018 LG Electronics Inc All rights reserved Only for training and servic...

Страница 33: ...phase out Check A C cord Check for all 3 phase power out Check outlet Replace Main B D CPU Abnormal Replace Power B D N Y Normal End Established date Revised date 7 16 Error symptom Standard Repair Process 7 Abnormal 1 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 34: ...gh 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_...

Страница 35: ... Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A20 A21 A18 Disconnection Established date Revised date 9 16 Error symptom Standard Repair Process 9 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 36: ...nal 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 13 2V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B ...

Страница 37: ...heck Replace Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A22 Normal Voltage Close N N Check 3 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A18 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A22 Replace Main B D Y A22 Standard Repair Process Established date Revised date 11 16 Error s...

Страница 38: ...ished date Revised date 12 16 Error symptom Replace MR18 Turn off on the set and press the wheel Press the back key about 5sec Close If you conduct the loop at 3times change the M4 Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 14 RF Remocon Test 3 Firmware download Y RF Receiver ver is 00 00 N Close A23 A4 A4 12 Copyright ...

Страница 39: ...ifi cable connection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 13 16 Error symptom 13 Change the Wifi assy Normal Voltage Close Y Y N Replace Main B D Wi Fi Mac value is NG N Close A24 A4 A4 A24 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 40: ...eck 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 14 16 Error symptom Standard Repair Process 14 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 41: ...d 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 15 16 Error s...

Страница 42: ...e cabinet Replace remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 Error symptom Standard Repair Process 16 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 43: ...ecking Part A5 6 A Video error _Vertical Horizontal bar residual image light spot Connection diagram A6 7 A Video error_ Color error Check Link Cable Vx1 EPI reconnection condition A7 8 Appendix Defected Type caused by T Con Inverter Module Check Cable 1 2 A 1 11 A 2 11 9 Exchange Main Board 1 3 A 3 11 A 5 11 10 Exchange Module 1 3 A 6 11 A 8 11 11 Exchange T Con 1 2 A 9 11 A 10 11 12 Exchange Pow...

Страница 44: ... menu when there is no audio A21 17 Voltage and speaker checking method when there is no audio A22 18 D Function error Remote control operation checking method A23 19 Motion Remote operation checking method A24 20 E Etc How to use the Service remote control A25 A27 21 Check items after Main B D replacement A28 22 Adjustment Test pattern ADJ Key A29 23 How to use JIG Power B D Diagnostic Smart Jig ...

Страница 45: ... Content Check LCD back light with naked eye A Video error_No video Normal audio After turning on the power and disassembling the case check with the naked eye whether you can see light from locations A1 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 46: ...ideo Normal audio A2 ALL MODELS Entry method 1 Press the ADJ button on the remote control for adjustment 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 ...

Страница 47: ...20dB etc Standard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop ALL MODELS A3 Established date Revised date Error symptom Content A3 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 48: ...r video lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version ALL MODELS A4 Established date Revised date Error symptom Content A4 v Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 49: ...easuring each voltage from power supply finally replace the MAIN BOARD Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop A5 Established date Revised date Error symptom Content A5 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 50: ...ical Horizontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date Error symptom Content A6 ALL MODELS Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 51: ...nnection condition A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content A7 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 52: ...f 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 53: ...ead 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 54: ...Main 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 55: ...anner 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 56: ...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 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 57: ...the screen MODULE Internal matter BLU internal foreign matter inflow MODULE Image broken 6 block image broken MODULE Image broken Screen sync signal broken A 6 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 58: ...ng due to lateral external impact and internal bending of BLU MODULE Vertical smear Vertical spreading on cube screen in no signal MODULE Over color Screen contour part brightly Over color A 7 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 59: ...nter of the screen 1 block dark MODULE Vertical bar Center Vertical Bar MODULE Darkness at the bottom of the screen MODULE internal BLU breakage A 8 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 60: ...d the picture below the screen is broken T CON screen lower image broken T Con is defective and the picture below the screen is broken T CON screen lower image broken T Con is defective and the picture below the screen is broken A 9 11 Check parts by symptom Appendix Examples of Symptoms T Con Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 61: ...f the screen Initial normal operation upper darkness during heat run T CON Image Broken The entire screen is dark and bit noise occurs T CON Image Broken The entire screen is dark and bit noise occurs A 10 11 Check parts by symptom Appendix Examples of Symptoms T Con Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 62: ...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 ...

Страница 63: ...k front Power Indicator B Power error _No power A17 Established date Revised date Error symptom Content A17 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 ...

Страница 64: ...nd ST BY 7 8V B Power error _No power MS Level Range V LED On Off MS 0V 0 0 25 Off MS 2V 1 75 2 25 On Home mode MS 3V 2 75 3 25 On Store Mode Home mode General Customer Store mode use Store Picture Condition VIVID Back light 100 Voltage Current MS2 240 V 410mA 393 434 8mA 240 V 410mA 393 434 8mA SK100 AC input Power Board Voltage Current P201 J18 PWR ON MS J3 13 2V all condition meets Power Board ...

Страница 65: ...justment item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A20 Established date Revised date Error symptom Content A20 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 66: ...und Out 4 Select TV Speaker Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A21 Established date Revised date Error symptom Content A21 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 67: ...speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A22 Established date Revised date Error symptom Content A22 1 SPK_R FT 2 SPK_R FT 3 SPK_L FT 4 SPK_L FT Copyright 2018 LG Electronics Inc A...

Страница 68: ...al Remote control operation checking method D Function error A23 Established date Revised date Error symptom Content A23 Checking order to check remote control IR EYE Sensor IR LOGO light Rear IR Eye Pin Pin name 1 VCC 2 USB_DM 3 USB_DP 4 GND 5 WOL WIFI_ON 6 VCC 7 COMBO_RESET 8 GND 9 BT_WAKEUP_DEVICE 10 BT_WAKEUP_HOST 11 GND 12 GND 13 14 15 16 EYE_SDA 17 EYE_SCL 18 GND 19 IR 20 LED_R 21 GND 22 VCC...

Страница 69: ...the terminal 22 Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear Pin Pin name 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 5 WOL WIFI_POWER_ON_JACK 6 3 5V_WIFI 7 COMBO_RESET_JACK 8 9 BT_WAKEUP_DEVICE_JACK 10 BT_WAKEUP_HOST_JACK 11 12 13 14 15 16 EYE_SDA_JACK 17 EYE_SCL_JACK 18 19 IR_JACK 20 LED_R_JACK 21 22 3 5V_ST 23 KEY2_JACK 24 KEY1_JACK 25 A24 Copyright 2018 LG Electronics ...

Страница 70: ...to use the Service remote control D Function error A25 Established date Revised date Error symptom Content A25 0 4 1 3 0 4 1 3 1 How to access the remote control Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 71: ...Cinema 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 facto...

Страница 72: ...attern 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 exte...

Страница 73: ...ber D 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 2018 LG Electronics Inc All rights ...

Страница 74: ... 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 A29 Established date Revised date Error symptom Content A29 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 75: ...Smart JIG Power Diagnosis Muitl Gender Guide P N RAD33187801 P N RAD32507801 A30 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 76: ...n 28Pin 28Pin 12Pin 12Pin 28Pin 24Pin 24Pin NC Includes 49UJ63 Defect diagnosis Power Board Main Board 16Y OLED 17Y 18Y OLED 18Y SK80 UK89 SK85 SK96 SK95 SK99 18Y UK63 UK64 UK65 UK7050 New JIG OLD JIG Cable Connection 18 Marking check No Marking 24 Marking Check 15Y OLED 17 18Y W7 B8 C8 E8 G8 W8 18Y 32LK61 32LK62 43 49LK61 18Y UK74 UK75 UK77 UK78 SK79 Copyright 2018 LG Electronics Inc All rights r...

Страница 77: ...85 UJ94 SJ80 UJ77 UJ75 UJ78 UJ65 UJ68 UJ63 UJ67 LJ61 LJ68 LJ55 LJ58 18 LED SK80 SK85 SK95 UK78 UK75 UK77 SK79 UK63 UK64 UK65 UK7050 32LK61 62 43 49LK61 18 OLED B8 C8 E8 G8 W8 15Y 16Y 17Y 18Y OLED Model 16Y 17Y 18Y LED Model Existing 12Y 13Y 14Y 15Y LED models included 15Y 16Y 17Y 18Y OLED 16 17 18 Y LED model Power diagnosis function newly added Copyright 2018 LG Electronics Inc All rights reserve...

Страница 78: ...4 LCD 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 79: ...agnosis 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 80: ... Power 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 81: ...oard 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 82: ...1 3 2 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 83: ... switch 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 84: ... 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 When the NG LED turns on the Power Board can be judged as defective Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 85: ... 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 When the NG LED turns on the Power Board can be judged as defective Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 86: ... the 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 87: ... 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 88: ...the Main 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 89: ...the Main 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 90: ...t the 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 91: ...the Main 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 92: ...e Main 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 93: ...e 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 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

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