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LG OLED88ZXPUA, Service Manual

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LG OLED88ZXPUA Service Manual Download Page 28

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Copyright © 

 LG Electronics Inc. All rights reserved.

Only for training and service purposes.

(6-1) Tighten the Sound Reflector. (Attached with magnet)  

        *  Check the DC Cable clearance before the Sound Reflector tightening. The Sound Reflector does not tighten properly if the DC 

Cable is protruding.

(6-2) Screw the Sound Reflector Fixation Screw(B) 2EA 

         * Be careful not to scratch inside the stand when Sound reflector is assembled to Stand.

Sound Reflector

6-2

B

6-1

Sound Reflector

Reflector attached by magnet.

※Check the DC Cable before assemble Reflector to  Stand.

Cable protrudes to  the outside (NG)

Cable does not protrude
to the outside (OK)

Summary of Contents for OLED88ZXPUA

Page 1: ...her 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 2020 LG Electronics Inc All rig...

Page 2: ... 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 ASSEMBLY DISASSEMBLY GUIDE 13 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: ...utes 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 specification 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 ...

Page 7: ...0P Not Support for FHD 17 3840 2160 112 5 50 594 UDTV 2160P Not Support for FHD 18 3840 2160 134 86 59 94 593 4 UDTV 2160P Not Support for FHD 19 3840 2160 135 60 594 UDTV 2160P Not Support for FHD 20 4096 2160 53 95 23 98 296 7 UDTV 2160P Not Support for FHD 21 4096 2160 54 24 297 UDTV 2160P Not Support for FHD 22 4096 2160 56 25 25 297 UDTV 2160P Not Support for FHD 23 4096 2160 61 43 29 97 296 ...

Page 8: ...for FHD 28 3840 2160 134 86 59 94 593 4 UDTV 2160P Not Support for FHD 29 3840 2160 135 60 594 UDTV 2160P Not Support for FHD 30 3840 2160 225 100 1188 UDTV 2160P 4K120 model K6Hp HDMI 3 4 port O20 or 8K model 31 3840 2160 269 73 119 88 1186 8 UDTV 2160P 32 3840 2160 270 120 1188 UDTV 2160P 33 4096 2160 53 95 23 98 296 7 UDTV 2160P Not Support for FHD 34 4096 2160 54 24 297 UDTV 2160P Not Support ...

Page 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 Support Software Update 2 Click CHEK FOR UPDATES system check newest version 3 Click DOWNLOAD AND INSTALL 4 TV is updating 5 Afte...

Page 10: ... NVRAM 256Kb I2C_4 I2C3 IQ IP HDMI4 TS Area OPT IR Key 0 8V Core 3 3V Normal 3 5V ST_BY 5V Normal 0 8V 3 3V 5V 3 5V_ST 0 8V 1 8V 3 3V 3 3V 3 3V 5V 5V 1 8V 1 1V 3 5V_ST 3 5V_ST 3 3V 3 5V_ST 3 5V 13V 3 5V 13V 13V 13V 3 3V To F20 From Power B D 13V Signal Process Power Supply Input Output Power To WIFI BT Combo eMMC CLK DATA STRB USB3 2 0 IR Blaster Vx1 VIDEO 16 lane LPDDR4 16Gb 1 1V DDR 1 1V 13V 3 5...

Page 11: ...fied 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 420 570 900 120 AR2 200 902 410 520 100 901 440 121 400 530 902 500 800 531 532 540 950 510 560 430 810 AF3 AB2 AF1 A...

Page 12: ...ht LG Electronics Inc All rights reserved Only for training and service purposes FRC Board Main Board WIFI JOG DC SPLITTER IR HS1 SP3 HP1 SP4 LV4 LV1 LV3 LV2 SP2 SP1 HW1 FAN FA1 DC2 DC1 HP2 700 EXPLODED VIEW CABLE ...

Page 13: ...rvice purposes When moving the set do not hold the head part red dotted line part by hand move it by holding the stand green line part When moving the set Handling by more than 4 persons Refer to the picture below Precautions for OLED88ZX Handling ASSEMBLY DISASSEMBLY GUIDE SET ...

Page 14: ...e DC Cable Cover Pull the left side of the cover to separate 1 2 Separate the Main Cable Cover Pull the right side of the cover to separate Pull the Stand Cable Cover to separate vertical direction horizontal direction 1EA each and disconnect the varieties of cables 1 3 Unscrew Screw A 1EA for DC Cable Fixer and disconnect the DC Cable A DC Cable Fixer 1 3 DC Cable Disassembly Guide ...

Page 15: ...on Screw B 2EA on the underside of a stand top 2 2 Push the front protrusion of the Sound Reflector upwards to separate it from the stand The Sound Reflector is attached to the stand only by a magnet Thus Make sure that the Sound Reflector does not fall off to the floor when it is removed 2 1 2 2 B Sound Reflector Sound Reflector ...

Page 16: ...haft C 4EA on the underside of a stand top Use hexagonal wrench The Shaft C is not completely separated from the Stand The Shaft C is fixed to the Stand by washer 4 1 Lift the Head part and separate it from the Stand 4 1 3 1 C C C C C The Shaft is fully released status The Shaft is not separated from the Stand ...

Page 17: ...Only for training and service purposes 5 1 Unscrew the Back Cover Fixation Screw D 9EA 5 2 Separate the Back Cover by lifting the bottom of the Back Cover Carefully separate the upper holder joints 5 1 D D D D D D D D D 5 2 Back Cover inner holder joints ...

Page 18: ... 18 Copyright LG Electronics Inc All rights reserved Only for training and service purposes 5 3 Back Cover disassembly completed 5 3 ...

Page 19: ...nd service purposes 6 1 Pull the Stand Cable Cover on the back of the Stand to separate it Vertical direction 1EA Horizontal direc tion 1EA 6 2 Separate the Cable Fixer Pass the DC Cable through the holes and pull down 6 2 Cable Fixer 6 1 Stand Cable Cover Stand Cable Cover ...

Page 20: ...oses 7 1 Unscrew the Power Box Fixation Screw E 3EA on the back of the Stand 7 2 Separate the Power Box from Stand by pulling the DC Cable and the Power Code Cable Pull out gently while pulling the left and right simultaneously to avoid damage or missing the cable 7 1 7 2 E E E Power Box ...

Page 21: ...or training and service purposes As follows When re assembling the Power Box Make sure that the Guide Pem nut on the Power Box is inserted into the Stand inner Guide Rail For normal assembly the left and right sides must be inserted to the end at the same time ...

Page 22: ...right LG Electronics Inc All rights reserved Only for training and service purposes 8 1 Unscrew Screw F 12EA on top of Power Box and separate Power Box Top Cover 8 1 F F F F F F F F F F F F Power Box Top cover ...

Page 23: ...yright LG Electronics Inc All rights reserved Only for training and service purposes 1 1 Cover the Power Box Top Cover and Screw the Screw F 12EA Assembly Guide 1 1 F F F F F F F F F F F F Power Box Top cover ...

Page 24: ...ert the Power Box into the stand Make sure that the Guide Pem nut on the Power Box is inserted into the Stand inner Guide Rail For normal assembly the left and right sides must be inserted to the end at the same time 2 2 Screw the Power Box Fixation Screw E 3EA on the back of the Stand 2 2 E E E 2 1 ...

Page 25: ...es 3 1 Insert the DC cable inside the back of the stand red square part and Pass through the upper square hole green square part Tighten the cable fixer 3 2 Tighten the Stand Cable Cover Vertical direction 1EA Horizontal direction 1EA 3 2 Stand Cable Cover Stand Cable Cover 3 1 Cable Fixer ...

Page 26: ...ce purposes 4 1 Cover the Back Cover and tighten the Latch by pressing the Latch part When pressing the Latch part Make sure that you hear a Tap sound and make a normal connection 4 2 Screw the Back Cover Fixation Screw D 9EA D D D D D D D D D 4 2 4 1 Back Cover inner holder joints ...

Page 27: ...en the Head and the Stand If necessary fix the DC Cable with tape before inserting the Head 5 2 Screw the Shaft C 4EA If the head of the shaft does not protrude from the stand surface it is normally fastened 5 2 C C C C The head of the shaft does not protrude from the stand surface C 5 1 If necessary fix the DC Cable with tape before inserting the Head Caution Cable ...

Page 28: ...The Sound Reflector does not tighten properly if the DC Cable is protruding 6 2 Screw the Sound Reflector Fixation Screw B 2EA Be careful not to scratch inside the stand when Sound reflector is assembled to Stand Sound Reflector 6 2 B 6 1 Sound Reflector Reflector attached by magnet Check the DC Cable before assemble Reflector to Stand Cable protrudes to the outside NG Cable does not protrude to t...

Page 29: ...ure Insert the DC Cable Fixer and Screw the Screw A 1EA 7 2 Insert Cables to back of Stand and pass the cable through the top cover hole Insert Cable Fixer Assemble Stand Cable Cover Vertical Horizontal each direction 1EA 7 3 Assemble the Main Cover and the Power Cover A DC Cable Fixer 7 1 Matching color of Cable and Label Fixing Cable 7 2 Stand Cable Cover Stand Cable Cover Cable Fixer 7 3 ...

Page 30: ...TROUBLE SHOOTING GUIDE Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 31: ...ower 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 PM20 operating checking 12 11 12 Wifi operating checking 13 13 External device recognition error 14 14 Voice Recognition function error 15 15 E Noise Circuit noise mechanical noise 16 16 F Exterior error Exterior defect 17 First of all Ch...

Page 32: ...d 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 A1 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 or EPI Cable Speaker Cable...

Page 33: ...o No 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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 34: ...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 Er...

Page 35: ...ror 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 A19 A7 Standard Repair Process Established date Revised date Error symptom 4 Copyright 2020 LG Electronics Inc All r...

Page 36: ...onent RGB and HDMI 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 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 e...

Page 37: ...easure each output voltage of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check Power 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 N Copyright 2020 LG Electronics Inc All rights reserved Only for training and se...

Page 38: ...Replace 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 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purpo...

Page 39: ...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 BDP_ERR...

Page 40: ...age Y N Replace Power Board and repair parts Check Speaker disconnection N Y Replace 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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 41: ...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 42: ...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 3 5v 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 43: ...ished date Revised date Error symptom Replace Magic remote control 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 Magic remote control Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Download the Firmware Instart Menu 12 RF Remote control Test Receiver Firmware Download Y RF Receiver ver...

Page 44: ...i cable connection N Check the Wifi wafer 1st pin 3 5V Standard Repair Process Established date Revised date Error symptom 13 Replace the Wifi assy Normal Voltage Y Y N Replace Main B D Wi Fi Mac value is NG N Close A14 A4 A4 A14 Close Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 45: ... Check 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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 46: ...eck Sub Ass y Cable A15 D Function error Voice Recognition Function Error Standard Repair Process 불량증상 Cable Connection Is OK N Y Close Make the function on Re connect Cable Change Voice Recognition Ass y Change Main B D Close Close Close Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 47: ...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 48: ...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 17 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 49: ...al 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 Cable Main Board Module Examples of Symptoms Image Error A 1 2 10 Examples of Symptoms Main Board A 3 5 10 Examples of Symptoms Module A 6 9 10 Examples of Symptoms Power Board A 10 10 Continue to the next page Contents of Standard Repair Proc...

Page 50: ...l video Checking method in menu when there is no audio A11 13 Voltage and speaker checking method when there is no audio A12 14 D Function error Remote control operation checking method A13 15 Wifi Motion remote operation checking method A14 16 Voice Recognition operation checking method A15 17 E Etc How to use the Service remote control A16 18 18 Check items after Main B D replacement A19 Continu...

Page 51: ...ual Revised date A1 Error symptom Content Check Vx1 Lock A Video error_No video Normal audio A1 Check a voltage of R30325 when TV is on Vx1 is OK if the voltage is 0V Low Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 52: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 53: ...tor 10dB 15dB 20dB etc Standard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop A3 Established date Revised date Error symptom Content A3 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 54: ...o error video lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version A4 Established date Revised date Error symptom Content A4 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 55: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 56: ..._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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 57: ...connection 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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 58: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 59: ...read VX1 cable connection problem CABLE Color spread VX1 cable connection problem CABLE Screen stop Due to foreign substance withi nVx1 cable PIN Appendix Examples of Symptoms Image error Check for poor cable contact Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 60: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 61: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 62: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 63: ... module MODULE Image broken Source driver issue MODULE White dot White dot cause by panel issue MODULE Line dim Vertical line cause by source driver IC A 6 10 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 64: ...ule is damaged MODULE Line defect Module is damaged MODULE Press damage Un repairable cases In this case please exchange the module A 7 10 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 65: ...rable cases In this case please exchange the module MODULE Green light Compensation error when power on off MODULE Color difference Color difference between screen cause by compensation error A 8 10 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 66: ...dule is damaged Can t fix it MODULE Burnt Burnt Can t fix it MODULE Mura Screen Mura Can t fix it A 9 10 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 67: ...Appendix Exchange Power Board PSU No Light No picture Sound Ok A 10 10 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 68: ...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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 69: ...al Manual Revised date A9 Error symptom Content Check power input voltage and ST BY 7 8V B Power error _No power A9 Check a voltage of DC 12VM ST BY 7 8V Normal 12V Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 70: ...to adjustment item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing A10 Established date Revised date Error symptom Content A10 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 71: ...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 A11 Established date Revised date Error symptom Content A11 Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 72: ...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 A12 Established date Revised date Error symptom Content A12 P7603 P20102 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 9 SPK_R _TW 10 SPK_R _TW 11 SPK_...

Page 73: ...ablished date Revised date Error symptom Content A13 Checking order to check remote control Pin Pin name 1 LED_R_JACK 2 GND 3 IR_JACK 4 3 5V_ST 5 GND 6 N C 7 EYE_SCL_JACK 8 KEY2_JACK 9 EYE_SDA_JACK 10 WOV_PDM0_DATAIN_JACK 11 N C 12 WOV_PDM_CLKOUT_JACK 13 3 5V_WIFI 14 GND 15 COMBO_RESET_JACK 16 BT_WAKEUP_HOST_JACK 17 WOL WIFI_POWER_ON_JACK 18 GND 19 3 5V_WIFI 20 WIFI_DP_JACK 21 WIFI_SUSPEND RESUME_...

Page 74: ...er to check motion remote wifi A14 Pin Pin name 1 LED_R_JACK 2 GND 3 IR_JACK 4 3 5V_ST 5 GND 6 GND 7 EYE_SCL_JACK 8 KEY2_JACK 9 EYE_SDA_JACK 10 WOV_PDM0_DATAIN_JACK 11 KEY1_JACK 12 WOV_PDM_CLKOUT_JACK 13 3 5V_WIFI 14 GND 15 COMBO_RESET_JACK 16 BT_WAKEUP_HOST_JACK 17 WOL WIFI_POWER_ON_JACK 18 GND 19 3 5V_WIFI 20 WIFI_DP_JACK 21 WIFI_SUSPEND RESUME_JACK 22 WIFI_DM_JACK 23 GND 24 3 5V_WIFI Wifi BT Fr...

Page 75: ...hnical Manual 1 Menu General AI Service 2 Voice Recognition Help and Settings 3 Settings 4 Active Use Hands free Voice Control Voice Recognition operating checking method D Function error Established date Revised date Content A15 Error symptom Copyright 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 76: ... How to use the Service remote control E ETC 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 2020 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 77: ... 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 mode Sim...

Page 78: ...hite 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 input 1...

Page 79: ...n 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 E ETC Copyright 2020 LG Electronics Inc All rights reserve...

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