LG OLED65G7P Service Manual

Chassis : ea71h

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OLED TV

SERVICE MANUAL

CHASSIS : EA71H

MODEL : OLED65G7P

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL69826607 (1702-REV00)

Any reproduction, duplication, distribution (including by way of email, 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.

CONFIDENTIAL

OLED65G7P-U

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Summary of Contents for LG OLED65G7P

Page 1 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.
Page 2 SOFTWARE UPDATE ................9 BLOCK DIAGRAM ................. 10 EXPLODED VIEW .................. 15 ASSEMBLY / DISASSEMBLY GUIDE ........APPENDIX TROUBLE SHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 3 When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 5 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. - 5 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 6 AV and DVI use same jack SPDIF out(1EA) Optical Audio out Rear (1EA), USB Input(3EA) EMF, DivX HD, For SVC (download) JPEG, MP3, DivX HD Side(1EA), Rear(2EA) - 6 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 7 UDTV 2160P 3840*2160 56.25 25.00 297.00 UDTV 2160P 3840*2160 67.5 30.00 297.00 UDTV 2160P 4096*2160 53.95 23.97 296.70 UDTV 2160P 4096*2160 UDTV 2160P - 7 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 8 UDTV 2160P 4096*2160 112.5 50.00 UDTV 2160P When HDMI1,2,3/4 UHD DEEP COLOUR ON 4096*2160 134.86 59.94 593.40 UDTV 2160P 4096*2160 60.00 UDTV 2160P - 8 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 9 (8) After TV turned on, Check the updated SW Version and Tool Option (6) Turn OFF the TV and On. Check the updated SW Version and Tool Option - 9 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 16 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Wall Mount Screw 200T - 16 - Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 18 E. Noise Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GSCS System for these model. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 19 ☞A4 & A2 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 20 Check various voltages Check and of Power Board (Main) Normal No Video/ replace No audio voltage? (20V, 12V…) MAIN B/D Replace Power Board and repair parts Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 21 1. Reconnection 2. Install Booster S/W Upgrade Contact with signal distributor Normal or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 22 /Cable device and error normal cable Request repair for external device/cable Check external External device HDMI device and Replace Main B/D /Cable error cable normal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 23 (Check normal operation of HDMI/ Main B/D / External Input, Component, normal? Module RGB and HDMI/DVI by Normal connecting Jig, pattern screen? Generator ,Set-top Box etc. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 24 Measure voltage of each output of Power B/D Normal? Normal Replace Main B/D voltage? Close Normal Check ST-BY (7.8V) voltage? ☞A9 Replace Power B/D Replace Power Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 25 "POWER_OFF_BY_UNKNOWN" Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 26 20V of Power Screen normal voltage Speaker off Board Cancel OFF Replace Power Board and repair parts Check Replace MAIN Board Disconnection Speaker disconnection connecting Speaker Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 27 (In case of Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 28 Replace Main B/D (Power B/D don’t have problem) If R/C operate, Normal Close operating? Explain the customer cause is interference from light in room. Replace R/C Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 29 Replace MR16A Close Down load the Firmware •If you conduct the loop at 3times, * INSTART MENU12.RF Remocon Test Receiver change the MR16A. Firmware download Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 30 INSTART menu Voltage? 1pin Main B/D ☞A14 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value Close is “NG”? Change the Wifi assy Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 31 Recognition error signal - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 32 “Part related to nose” in the Owner’s then proceed as shown in the solution manual Manual. (For models without any fix information, provide the description) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 33 Revised date 15/15 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote control Replace remote control damage Stand Replace stand dent Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 34 Exchange Main Board (2) A-2/5 <Appendix> Exchange Power Board (PSU) A-3/5 Defected Type caused by T-Con/ Power / Module Exchange Module (1) A-4/5 Exchange Module (2) A-5/5 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 35 Remote control operation checking method D. Function error Motion Remote operation checking method Wifi operation checking method E. Etc Tool option changing method Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 36 Check Vx1 lock Content date After Remove the Rear Cover, turning on the power and check with the naked eye, Whether you can see video Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 37 2. Enter into White Balance of item 12. 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 38 Content date All Settings  Channels  Channel Tuning  Manual Tuning When the signal is strong, use the attenuator (-10dB, - 15dB, -20dB etc.) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 39 OLED TV Version checking method Content date 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 40 1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 41 Revised Content OLED TV Connection diagram date As the part connecting to the external input, check the screen condition by signal Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 42 A. Video error_Color error symptom date Revised Content Check Link Cable (Vx1) reconnection condition date Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 43 Abnormal Power Section Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack A - 1/5 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 44 Abnormal Power Section Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION A - 2/5 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 46 Appendix : Exchange the Module (1) Line Dim Brightness difference Vertical abnormal display Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Burnt A - 4/5 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 47 Half dead Brightness difference Green Noise on power on/off time Line Defect Un-repairable Cases In this case please exchange the module. Mura A - 5/5 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 48 B. Power error _No power symptom date Revised Content Check front Power Indicator date For OLED65G7 OLED77G7 ST-BY condition: On or Off Power ON condition: Turn Off Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 49 Power To Main and Sub B’d Check the DC 12VM line for ST-BY Voltage (ST-BY : 7.8V, Normal : 12V) P201 P202 P203 Power To Module Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 50 Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 (Power On/Off Status) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 51 1. Press the Setting button on the remote control 2. Select the Sound function of the Menu 3. Select the Sound Out 4. Select TV Speaker Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 52 ③ 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. Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 53 Checking order to check remote control Checking order 1, 2. Check IR cable condition between IR & Main board. Check the st-by 3.5V on the terminal 4 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 54 Check WIFI Combo cable condition between WIFI Combo Assy & Main board. Check the st-by 3.5V P4000 on the terminal 4 Check the 3.5V_WIFI P4004 on the terminal 1 Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 55 You can 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!) Copyright © 2017 LG Electronics Inc. All rights reserved. Only for training and service purposes.

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