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LG Electronics Inc. All rights reserved.

Only for training and service purposes.

BLOCK DIAGRAM

OCP 1.5A

Audio

2

AM

P

Main IC

USB1

(2.0

)

OPTIC

LA

N

DDR4

(512MB X 2EA)

HDMI1

(2.0

)

HDMI2

(2.0

)

HDMI3 (2.0

)

SYSTEM

EEPROM

USB2

(2.0)

USB3

(2.0)

eMMC

Mico

m

P_TS

X_TA

L

I2S Ou

t

R E A R

S I D E

R E A R (H)

SPDIF

OU

T

BLUTOOTH

IR/KEY/EYE

WIFI

SU

B

ASSY

IR

KE

Y

I2C

CVBS/SIF

Tune

r

(ARC)

X_TA

L

OCP 1.5A

OCP 1.5A

HDMI4 (2.0

)

DDR

Controller

DDR4

(512MB X 2EA)

DDR4

(512MB X 2EA)

RS232C

RS232C

Cont

ro

l

AV/CVB

S

AV/CVB

S

1. Main

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Содержание OLED55E8PUA

Страница 1: ...e 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 Electronics Inc ...

Страница 2: ...ights 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 16 DISASSEMBLY GUIDE 17 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: ...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 Digital ATSC 64 256 QAM Analog NTSC ...

Страница 7: ...6 59 94 25 17 VESA VGA 4 800 600 37 87 60 31 40 VESA SVGA 5 1024 768 48 36 60 00 65 VESA XGA 6 1360 768 47 71 60 01 84 75 VESA WXGA 7 1152 864 54 34 60 05 80 VESA 8 1280 1024 63 98 60 02 109 00 SXGA Support to HDMI PC 9 1920 1080 67 5 60 158 40 WUXGA Reduced Blanking 10 1920 1080 135 120 297 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 ...

Страница 8: ...1 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 43 59 94 148 35 HDTV 1080P 21 1920 1080 67 5 60 00 148 50 HDTV 1080P 22 1920 1080 112 5 100 297 00 HDTV 1080P 23 1920 1080 134 86 119 88 296 70 HDTV 1080P 24 1920 1080 135 00 120 297 HDTV 1080P 25 3840 2160 53 95 23 98 296 70 UDTV 2160P 26 3840 2160 54 24 00 297 00 UDTV 216...

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: ...OPTIC LAN DDR4 512MB X 2EA HDMI1 2 0 HDMI2 2 0 HDMI3 2 0 SYSTEM EEPROM USB2 2 0 USB3 2 0 eMMC Micom P_TS X_TAL I2S Out R E A R S I D E R E A R H SPDIF OUT BLUTOOTH IR KEY EYE WIFI SUB ASSY IR KEY I2C CVBS SIF Tuner ARC X_TAL OCP 1 5A OCP 1 5A HDMI4 2 0 DDR Controller DDR4 512MB X 2EA DDR4 512MB X 2EA RS232C RS232C Control AV CVBS AV CVBS 1 Main ...

Страница 11: ...raining and service purposes zjs GG zkh G hhk hkj zpmG G pYj zjs GXG pYj zkh GYG j iz G G G pm hnj G G G zpm G G G pm u G G G pm w G_G G G j izG pm hnjG j iz puXG pmhnjG RZUZ G XUYrȳG t GpjG ZUZ GZG RZUZ G ZZGȳG zpmG ktk hkj puuG pm u G ktk hkj puwG pm w G 2 Tuner ...

Страница 12: ...SOC Side SPDIF_OUT SPDIF OUT H P JACK HP_LOUT_JACK HP_ROUT_JACK AU9 IEC958OUT AR9 AUDA_OUTL AT9 AUDA_OUTR SPDIF_OUT_ARC AL34 ARC_OUT COMP2 AV_L_IN COMP2 AV_R_IN AR10 AUAD_L_CH2_IN AT10 AUAD_R_CH2_IN AUAD_L_CH2_IN AUAD_R_CH2_IN HP AMP ARC OUT HDMI2 Front Speaker Woofer Speaker MICOM AMP_RESET SCK LRCK DACLRCH I2C_SCL_0 SDA_0 I2S GPIO17 Audio AMP Audio AMP AMP_MUTE WOOFER_MUTE US Component Spec out ...

Страница 13: ...DMI_HPD_2 CEC_REMOTE Port_1 DDC_I2C_1 HDMI_HPD_1 HDMI2 0 LGE PHY HDCP1 4 HDCP2 2 HDCP1 4 HDCP 2 2 HDMI2 0 LGE PHY HDMI2 0 LGE PHY 5V 5V 5V HDMI 4 2 0 _H HDCP1 4 HDCP2 2 HDMI 3 2 0 _V CEC_REMOTE Port_3 DDC_I2C_3 SPDIF_OUT_ARC HDMI_HPD_3 HDMI2 0 LGE PHY 5V HDMI2_3_HPD HDMI2_1_SDA HDMI2_3_SCL HDMI2_2_HPD HDMI2_2_SDA HDMI2_2_SCL HDMI2_1_HPD HDMI2_1_SDA HDMI2_1_SCL HDMI2_0_HPD HDMI2_0_SDA HDMI2_0_SCL P...

Страница 14: ...0 DM0 USB2_1_DP0 DM0 USB2 0_2_DP1 DM1 USB2 0_3_DP0 DM0 USB2_0_DP0 DM0 JK7200 RS232C phone Jack SOC_RX TX UART wafer P3401 P3402 SOC_RX TX USB 2 2 0 _H USB 3 2 0 _H WIFI_EN OCP EB_CS0 USB_CTL1 5V_USB_1 OCP GPIO95 USB_CTL2 5V_USB_2 OCP SPI_DO1 USB_CTL3 5V_USB_3 UART0_TXD GPIO105 Main IC USB 2 2 0 _V USB2 0_1_DM0 DP1 COMBO_RESET BT_WAKEUP_DEVICE BT_WAKEUP_HOST 3 5V_WIFI KOREA Component AV RS 232C Spe...

Страница 15: ...EYE_SDA EYE_SCL 3 5V_ST 33pF 18pF Cap Ready 0x56 0x52 0xCA 0x10 0xA0 Device address I2C_SCL4 AL21 SCL4 I2C_SDA4 AM21 SDA4 I2C_SCL1 AM19 SCL1 I2C_SDA1 AN19 SDA1 I2C_SCL3 AL23 SCL3 I2C_SDA3 AL22 SDA3 I2C_SCL0 AL20 SCL0 I2C_SDA0 AL19 SDA0 I2C_SCL2 AM20 SCL2 I2C_SDA2 AN20 SDA2 I2C_SCL5 AN22 SCL5 I2C_SDA5 AM22 SDA5 Tuner 1 2KΩ 3 3V_TU 33Ω 47pF 3 3V_NORMAL 3 3KΩ OLED module P7601 Vx1 51Pin Wafer 33 34pi...

Страница 16: ...ics 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 IMPORTANT SAFETY NOTICE 200T 400 540 120 LV1 121 710 200 900 410 LV2 930 300 350 530 700 AR2 A10 CM1 CM2 301 HP1 HS...

Страница 17: ...DISASSEMBLY GUIDE Total Screw No 34ea 1 Remove screw 1ea disassemble power cord from back cover 2 Remove screw 5ea disassemble back cover from module Put hand on the marked area separate the back cover to the top 1 1 2 2 2 2 1 1 1 1 2 2 2 2 2 2 2 Screw 1ea 1 Screw 5ea 1 Holder and Latch 11ea 2 ...

Страница 18: ... 18 Copyright LG Electronics Inc All rights reserved Only for training and service purposes 3 Remove screw 1ea disassemble Wifi Jog assy Screw 1ea 1 1 Latch Latch ...

Страница 19: ... 19 Copyright LG Electronics Inc All rights reserved Only for training and service purposes 4 Remove the latch 2ea disassemble IR assy Latch 2ea 2 2 2 Latch Latch ...

Страница 20: ... 20 Copyright LG Electronics Inc All rights reserved Only for training and service purposes 5 Remove all sort of cable 6 Disassemble Screw 2points and speaker 1 1 2 2 Screw 2ea 1 Remove Speaker 2 ...

Страница 21: ...lectronics Inc All rights reserved Only for training and service purposes 7 Remove screw 16ea disassemble T con Main PCB and PSU Screw 12ea 1 8 Remove T con Cable Cable 4ea 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Страница 22: ...All rights reserved Only for training and service purposes 1 1 2 2 2 2 2 9 Remove Tape and Screw 5points Disassemble Module and Glass Ass y Assemble with Magnetic top L R EMI Tape 2ea 1 Screw 5EA 2 10 Module Glass Disassemble Complete ...

Страница 23: ...TROUBLE SHOOTING GUIDE Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 24: ...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 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: ...ays 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 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 Ca...

Страница 26: ...udio 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 2 16 Error symptom 2 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 27: ... 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 3 16 Error symptom 3 N Y Close N S W Upg...

Страница 28: ...k 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 4 16 Error symptom 4 Copyright 2018 LG Electronics Inc All rights reserved ...

Страница 29: ...nput 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 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 Scree...

Страница 30: ...re 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 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 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 A10 A9 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 pur...

Страница 32: ...h 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_E...

Страница 33: ...ower 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 9 16 Error symptom Standard Repair Process 9 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 34: ...rnal 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 B D...

Страница 35: ...eck 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 11 16 Error sym...

Страница 36: ...s show ok message N N N Y Replace MR18 Turn off on the set and press the wheel Press the back key about 5sec If you conduct the loop at 3times change the MR18 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 Copyrig...

Страница 37: ...fi 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 Y Y N Replace Main B D Wi Fi Mac value is NG N A14 A4 A4 A14 Close Close Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 38: ...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 13 15 Error symptom Standard Repair Process 14 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 39: ... 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 sy...

Страница 40: ... 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 A ...

Страница 41: ...Tuner Checking 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 reconnection condition A7 8 Adjustment Test pattern ADJ Key A15 9 Appendix Defected Type caused by T Con Power Module Exchange Main Board 1 A 1 5 Exchange Main Board 2 A 2 5 Exchange Power Board PSU A 3 5 Exchange Module 1 A 4 5 Exchange ...

Страница 42: ...ng method 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 Wifi operation checking method A14 18 E Etc How to use the Service remote control A15 A17 19 Check items after Main B D replacement A18 20 Adjustment Test pattern A19 21 How ...

Страница 43: ... date A1 Error symptom Content Check Vx1 lock A Video error_No video Normal audio A1 Check a voltage of R7624 after turn on the TV If the voltage is low Vx1 is locked OK R7624 0 V Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 44: ...deo 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 45: ... error video lag stop A3 Established date Revised date Error symptom Content A3 All Settings Programmes Programme Tuning setting Manual Tuning Antenna DTV When the signal is strong use the attenuator 10dB 15dB 20dB etc Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 46: ...ideo 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 47: ...evised 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 48: ...or _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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 49: ...nection 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 50: ... 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 A ...

Страница 51: ...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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

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

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

Страница 54: ... 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 A ...

Страница 55: ...nge the module Module image broken Source Driver issue Module White dot White dot cause by panel issue Module Line Dim Vertical Line cause by source drive IC Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 56: ... Module has damaged Module Line Defect Module has damaged Module Press damage Un repairable Cases In this case please exchange the module Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 57: ...repairable 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 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 58: ...age Module has damaged Can t fix it Module Burnt Burnt Can t fix it Module Mura Screen Mura Can t fix it Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 59: ...Appendix Exchange Power Board PSU No Light No picture Sound Ok A 10 10 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 60: ...k 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 61: ...r symptom Content Check power input voltage and ST BY 3 5V B Power error _No power A9 Check the DC 12VT line for ST BY Voltage ST BY 7 8V Normal 12V Power To Main B d Power To Module P201 P251 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 62: ... 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 63: ...o 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 64: ...ere 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 P201 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 ...

Страница 65: ...ecking method D Function error A13 Established date Revised date Error symptom Content A13 1 Check IR cable condition between IR Main board Check picture number and 2 Check the standby 3 5V on the terminal 4 pin 3 AS checking the Pre Amp IR LED light the power is in ON condition an Analog Tester needle should move slowly otherwise it s defective IR EYE Sensor Eye LED IR Checking order to check rem...

Страница 66: ...I 25 GND Standard Repair Process Detail Technical Manual Motion Remote operation checking method D Function error A14 Established date Revised date Error symptom Content A14 Checking order 1 Check BT Wifi cable condition between BT Wifi assy Main board 2 Check the 3 5V on the terminal 19 Wifi BT Front Wifi BT Rear Checking order to check motion remote wifi Copyright 2018 LG Electronics Inc All rig...

Страница 67: ...o use the Service remote control D Function error 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 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 68: ...inema 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 factor...

Страница 69: ...ttern 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 exter...

Страница 70: ...er 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 r...

Страница 71: ... view 11 types of patterns using the CH or key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A19 Established date Revised date Error symptom Content A19 1 2 3 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes A ...

Страница 72: ...Smart JIG Power Diagnosis Muitl Gender Guide P N RAD33187801 P N RAD32507801 A20 1 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 73: ...28Pin 28Pin 12Pin 12Pin 28Pin 24Pin 24Pin NC Includes 49UJ63 Defect diagnosis Power Board Main Board 16Y OLED 17Y 18Y OLED A20 2 19 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 UK78 SK79 Copyright 2018 LG Electronics Inc All rights...

Страница 74: ... UJ94 SJ80 UJ77 UJ75 UJ78 UJ65 UJ68 UJ63 UJ67 LJ61 LJ68 LJ55 LJ58 18 LED SK80 SK85 SK95 UK78 UK75 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 A20 3 19 Copyright 2018 LG Electronics Inc All rights reser...

Страница 75: ... 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 A20 4 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 76: ...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 A20 5 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purpos...

Страница 77: ...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 A20 6 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 78: ...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 A20 7 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 79: ... 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 A20 8 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 80: ...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 A20 9 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 81: ... 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 A20 10 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 82: ... 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 A20 11 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 83: ...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 A20 12 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 84: ...l 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 A20 13 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 85: ...ain 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 A20 14 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 86: ...ain 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 A20 15 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 87: ... 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 A20 16 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 88: ...ain 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 A20 17 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 89: ...n 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 A20 18 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 90: ...n 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 A20 19 19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

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