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Standard Repair Process Detail Technical Manual

How to use the Service remote control

D. Function error

A16

Established

date

Revised

date

Error

symptom

Content

A16

1. How to access the remote control

Only for training and service purposes

Содержание 43LM5700PTC

Страница 1: ...B94M MODEL 43LM5700PTC 43LM5760PTC CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL CONFIDENTIAL Copyright 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 2: ...rights reserved Only training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 SOFTWARE UPDATE 10 BLOCK DIAGRAM 12 EXPLODED VIEW 13 DISASSEMBLY GUIDE 15 TROUBLE SHOOTING GUIDE APPENDIX ...

Страница 3: ... 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 an...

Страница 4: ...arge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential 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 electrostatic ...

Страница 5: ...nts 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 a...

Страница 6: ...ble programmes 3000 Analogue TV Analogue TV Maximum number of storable programmes 3000 4 Receiving system Analog Upper Heterodyne Digital COFDM DVB T Only DVB T Model Digital COFDM DVB T T2 Only DVB T2 Model Digital QAM DVB T Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 Modulation Code Rate QPSK 1 2 2 3 3 4 5 6 7 8 16 QAM 1 2 2 3 3 4 5 6 7 8 64 QAM 1 2 2 3 3 4 5 6 7 8 DVB T2 Depending on models...

Страница 7: ...15 625 50 13 5 SDTV DVD 576I 625I 50Hz 4 720 480p 31 47 59 94 27 SDTV 480P 5 720 480p 31 5 60 27 027 SDTV 480P 6 720 576p 31 25 50 27 SDTV 576P 50Hz 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 60 74 25 HDTV 720P 9 1280 720 37 5 50 74 25 HDTV 720P 50Hz 10 1920 1080 28 125 50 74 25 HDTV 1080I 50Hz 11 1920 1080 33 72 59 94 74 176 HDTV 1080I 12 1920 1080 33 75 60 74 25 HDTV 1080I 13 1920 108...

Страница 8: ...1920 1080 135 120 297 UDTV 2160P 25 3840 2160 53 95 23 98 296 7 UDTV 2160P 26 3840 2160 54 24 297 UDTV 2160P 27 3840 2160 56 25 25 297 UDTV 2160P 28 3840 2160 61 43 29 97 296 7 UDTV 2160P 29 3840 2160 67 5 30 297 UDTV 2160P 30 3840 2160 112 5 50 594 UDTV 2160P 31 3840 2160 134 86 59 94 593 4 UDTV 2160P 32 3840 2160 135 60 594 UDTV 2160P 33 3840 2160 225 100 1188 UDTV 2160P This will be added in US...

Страница 9: ...V 2160P 20 3840 2160 225 100 1188 UDTV 2160P This will be added in USERGUIDE after MR SW update event 21 3840 2160 270 119 88 1186 8 UDTV 2160P 22 3840 2160 270 120 1188 UDTV 2160P 23 4096 2160 53 95 23 98 296 7 UDTV 2160P 24 4096 2160 54 24 297 UDTV 2160P 25 4096 2160 56 25 25 297 UDTV 2160P 26 4096 2160 61 43 29 97 296 7 UDTV 2160P 27 4096 2160 67 5 30 297 UDTV 2160P 28 4096 2160 112 5 50 594 UD...

Страница 10: ...lick Yes TV will be DC OFF ON 8 After TV turned on Check the updated SW Version and Tool Option 2 NSU DOWNLOAD This Function is needed to connect to the internet Case 1 Allow Automatic Updates Toggle Item 1 Menu All Settings General About This TV 2 Silent Update_Pop up When the download and install of the update is complete the TV issues a Toast notification letting the user know that the update i...

Страница 11: ...tomatically check for updates when every TV boots When an updated is detected the TV will issue an Alert letting the user know that an update is available 3 Yes Initiate the download and install of the update No Close the pop up The Alert will come back again when TV checks again 4 The following pop up window appears 5 CHECK NOW Go to the About this TV setting page CLOSE Close the pop up ...

Страница 12: ...oc Embedded Audio AMP Digital Demod IF IR KEY Sensor HDMI MUX LVDS USB SPDIF OUT ETHERNET USB1 OCP 1 5A HDMI1 ARC REAR OPTIC LAN 30P X_TAL 24MHz WIFI SUB ASSY USB_WIFI Tuner HDMI2 SIDE CVBS YPbPr AV COMP REAR EEPROM 256Kb eMMC 5 1 4GB I2S I2C I2C Analog Demod USB2 OCP 1 5A HDMI3 H P OUT H P LM57 OPT LM57 OPT ...

Страница 13: ...ODED VIEW SET Many electrical and mechanical parts in this chassis have special safety related characteristics These 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 IMPORTAN...

Страница 14: ... Inc All rights reserved Only training and service purposes POL Front Panel Ass y POL Rear Optical Sheet Rear Side 200PPF 200PPR 200P 200PC 200SL1 200SR1 EXPLODED VIEW MODULE MRC use only MRC Module Repair Center IMPORTANT NOTICE ...

Страница 15: ...nics Inc All rights reserved Only training and service purposes DISASSEMBLY GUIDE 1 Unlock screws 1 1EA 2 2EA 3 5EA to separate back cover assembly from module Detach the Side AV Label 4 2 Detach the Tape 5 3 1 3 2 2 3 3 3 4 5 ...

Страница 16: ...opyright LG Electronics Inc All rights reserved Only training and service purposes 3 Separate connectors 6 from Main Power PCB and module Separate Speaker 7 2 EA from module B B A 6 B B A 6 6 6 6 6 7 7 6 6 6 ...

Страница 17: ...l rights reserved Only training and service purposes 4 Unlock screw 8 18 EA to separate from module 1 pole Stand Supporter 9 2 EA is applied on 1pole Stand type 5 Detach the Insulation Sheet 10 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 9 8 8 8 8 10 ...

Страница 18: ...training and service purposes 6 Separate connectors 13 from IR PCB 12 Lift the latch 14 to the upside and push the button 15 for separation 7 Separate connectors 16 from wifi PCB 18 Separate wifi PCB 18 from Wifi Bracket of Latch 17 12 11 13 14 14 15 16 17 18 ...

Страница 20: ...EMBLY GUIDE MODULE 1 LCM disassemble assemble guide Step 1 Disassemble the Main PSU SPK and S PCB cable Step 2 Disassemble the Case Top Screw Step 3 Disassemble the Case Top Step 4 Remove the EMI Tape on the S PCB and Separate the S PCB Case top screw U L R D 3 3 3 3 EA Total 12 EA EMI Tape 2 EA ...

Страница 21: ...ng and service purposes Step 5 Disassemble the Panel Step 6 Disassemble the guide panel Step 7 Disassemble the Optical Sheet 2ea Diffuser Plate 1 EA Step 8 Disassemble the DPS and the Reflector Rotate the DPS to remove 2 EA Be careful not to tear the Reflector sheet ...

Страница 22: ... double tape remove LED Array assemble Step 1 Double tape attach 1 Attach double tape 3 EA 2 Remove double tape protective film LED Array Double Tape must be matched with the P No Step 2 LED Array attach 1 Cover Bottom s guide embo LED Array arrange and attach 2 LED array squeeze along cover bottom s surface 3 Connect LED Array to connector Completion of double tape attach 3 EA LED Array Total 3 E...

Страница 24: ...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 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 is...

Страница 25: ...parts 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 Cable Spea...

Страница 26: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 27: ...ain B D 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 Established date Revised date 3 ...

Страница 28: ...ck 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 2019 LG Electronics Inc All righ...

Страница 29: ...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 30: ...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 2019 LG Electronics Inc All rights reserved Only for training and servic...

Страница 31: ...ce 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 A19 A18 Established date Revised date 7 16 Error symptom Standard Repair Process 7 Abnormal 1 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service pu...

Страница 32: ...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 33: ... 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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 34: ...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 35: ...eck 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 13 2v 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 36: ...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 Depending on country ...

Страница 37: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 38: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 39: ...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 40: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 41: ...g 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 Exchange Main Board 1 3 A 3 11 A 5 11 Exchange Module 1 3 A 6 11 A 8 11 Exchange T Con 1 2 A 9 11 A 10 11 Exchange Power Board PSU A 1...

Страница 42: ...hecking method in menu when there is no audio A12 15 Voltage and speaker checking method when there is no audio A13 16 D Function error Remote control operation checking method A14 17 Motion Remote operation checking method A15 18 E Etc How to use the Service remote control A16 A18 19 Check items after Main B D replacement A19 20 Adjustment Test pattern ADJ Key A20 21 How to use JIG Power B D Diag...

Страница 43: ... symptom Content Check LVDS A Video error_No video Normal audio After turning on the power and disassembling the case check C2233 Voltage 13V A1 C2333 13V Normal No Video Normal audio Reassemble Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 44: ...r_No video Normal audio A2 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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 45: ..._Video error video lag stop A3 Established date Revised date Error symptom Content A3 All Settings Programmes Programme Tuning Settings Manual Tuning When the signal is strong use the attenuator 10dB 15dB 20dB etc Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 46: ...or 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 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 47: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 48: ..._Vertical 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 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 49: ...onnection 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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 50: ...n of 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 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 51: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 52: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 53: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 54: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 55: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 56: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 57: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 58: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 59: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 61: ...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 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 62: ...l Technical Manual Revised date A9 Error symptom Check power input voltage and ST BY 3 5V B Power error _No power A9 Check the DC 13 2V 20V Check the VLED Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 63: ...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 A11 Established date Revised date Error symptom Content A11 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 64: ...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 A12 Established date Revised date Error symptom Content A12 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 65: ... the 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 A13 Established date Revised date Error symptom Content A13 Speaker 1 SPK R 2 SPK R 3 SPK L 4 SPK L Copyright 2019 LG Electronics Inc ...

Страница 66: ...rol operation checking method D Function error A14 Established date Revised date Error symptom Content A14 Checking order to check remote control IR EYE Sensor IR Eye LED Pin Pin name 1 3 4V_WIFI 2 WIFI_DM 3 WIFI_DP 4 GND 5 WOL WIFI_PWR_ON 6 3 4V_WIFI 7 WIFI_SUSPEND RESUME 8 GND 9 COMBO_RESET 10 BT_WAKE_UP_HOST 11 GND 12 3 4V_WIFI 13 NC 14 NC 15 NC 16 EYE_SDA 17 EYE_SCL 18 GND 19 IR 20 LED_R 21 GN...

Страница 67: ...3 5V on the terminal 1 pin Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear A15 Pin Pin name 1 3 4V_WIFI 2 WIFI_DM 3 WIFI_DP 4 GND 5 WOL WIFI_PWR_ON 6 3 4V_WIFI 7 WIFI_SUSPEND RESUME 8 GND 9 COMBO_RESET 10 BT_WAKE_UP_HOST 11 GND 12 3 4V_WIFI 13 NC 14 NC 15 NC 16 EYE_SDA 17 EYE_SCL 18 GND 19 IR 20 LED_R 21 GND 22 3 4V_ST 23 KEY2 24 GND 25 GND Copyright 2019 LG Electronics Inc A...

Страница 68: ...to use the Service remote control D Function error A16 Established date Revised date Error symptom Content A16 0 4 1 3 0 4 1 3 1 How to access the remote control Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 69: ...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 70: ...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 71: ...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 2019 LG Electronics Inc All rights ...

Страница 72: ... or You can view 11 types of patterns using the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A20 Established date Revised date Error symptom Content A20 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 73: ...Smart JIG Power Diagnosis Muitl Gender Guide P N RAD33187801 P N RAD32507801 A 21 1 19 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 74: ...18Pin 24Pin 24Pin 24Pin 28Pin 28Pin 18Pin 28Pin 28Pin 12Pin 12Pin 28Pin 24Pin 24Pin NC Includes 49UJ63 Defect diagnosis Power Board Main Board 16Y OLED 17Y OLED A21 2 19 SK85 SK96 SK95 SK99 UK64 UK65 New JIG OLD JIG Cable Connection 18 Marking check No Marking 24 Marking Check 15Y OLED 19Y LM63 LM57 LM55 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 75: ...J95 UJ98 SJ85 UJ94 SJ80 UJ77 UJ75 UJ78 UJ65 UJ68 UJ63 UJ67 LJ61 LJ68 LJ55 LJ58 18 LED SK95 SK85 SK81 SK80 UK64 UK65 LK61 LK57 LK54 19 LED LM63 LM57 LM55 15Y 16Y 17Y OLED Model 16Y 17Y 18Y 19Y LED Model Existing 12Y 13Y 14Y 15Y LED models included 15Y 16Y 17Y 18Y OLED 16 17 18Y 19Y LED model Power diagnosis function newly added A21 3 19 Copyright 2019 LG Electronics Inc All rights reserved Only for...

Страница 76: ... 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 A21 4 19 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 77: ...sis 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 A21 5 19 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purpos...

Страница 78: ...he 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 A30 17 19 Copyright 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...

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