LG 43UF640 Series Service Manual

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LED TV

SERVICE MANUAL

CHASSIS : LD59R / LD5ZR

MODEL : 43/49UF640*

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL69305903 (1506-REV00)

North/Latin

America

Europe/Africa

Asia/Oceania

43/49UF640*-ZA

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

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Page 1 Internal Use Only Internal Use Only North/Latin North/Latin America America http://aic.lgservice.com http://aic.lgservice.com Europe/Africa Europe/Africa http://eic.lgservice.com http://eic.lgservice.com Asia/Oceania Asia/Oceania http://biz.lgservice.com http://biz.lgservice.com LED TV LED TV SERVICE MANUAL SERVICE MANUAL CHASSIS : LD59R / LD5ZR CHASSIS : LD59R / LD5ZR MODEL : 43/49UF640* MODEL : 43/49UF640* 43/49UF640*-ZA 43/49UF640*-ZA...
Page 2 CONTENTS CONTENTS CONTEN CONTENTS ......................................SAFETY PRECA SAFETY PRECAUTIONS UTIONS ..............................SERVI SERVICING CING PRECAUT PRECAUTIONS IONS ............................SPECIFIC SPECIFICA TION TION ....................................
Page 3: Safety Precautions
SAFETY PRECAUTIONS SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE IMPORTANT SAFETY NOTICE Many el Many electrical ectrical and mechanic mechanical parts al parts in this in this chassis chassis have spec have special safety safety-related -related characteristics. characteristics. These These parts ar parts are identifie identified by...
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. Copyright © LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 6: Specification
SAT10&7 68.5E, INTELSAT15 85.2E, INTELSAT1R 50.0W, INTEL- SAT903 33.5W, INTELSAT904 60.0E, NILESAT 7.0W, NSS12 57.0E, THOR 0.8W, TURKSAT 42.0E,YAMAL201 90.0E, OTHER Copyright © LG Electronics. Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
Page 7 : 1/2, 2/3, 3/4, 5/6, 7/8 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10 Input Voltage AC 100 ~ 240V 50/60Hz Copyright © LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 8 HDTV 1080P 1920*1080 26.97 23.976 74.176 HDTV 1080P 1920*1080 33.75 30.000 74.25 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P Copyright © LG Electronics. Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
Page 9: Adjustment Instruction
Widevine → CI → HDCP20 ▪ Play: Press Enter key ▪ Result: Ready, Test, OK or NG ▪ Printer Out (MAC Address Label) Copyright © LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 10 4) Check the model name Instart menu. → Factory name displayed. (ex 47LB650V-ZA) 5) Check the Dia gnostics.(DT V country on ly) → Buyer model displayed. (ex 47LB650V-ZA) Copyright © LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
Page 11: Manual Adjustment
Month, Year: Controlled on production line: ex) Monthly : ‘01’ → ‘01’, Year : ‘2015’ → ‘19’ EDID Block 1, Bytes 128-255 [80H-FFH] ⓓ Model Name(Hex): LGTV ⓔ Checksum(LG TV): Changeable by total EDID data. ⓕ Vendor Specific(HDMI) 5D 5E A0 C0 B8 3C...
Page 12 HDMI Deep Color On HDMI Deep Color Off Input FFh (Checksum) FFh (Checksum) HDMI1 HDMI2 00 FD 00 3E 1E 00 FC Copyright © LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
Page 13 If it doesn’t change the value, the sensor is also defected one. D0 1E You have to replace it. Copyright © LG Electronics. Inc. All rights reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
Page 22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART JACK_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SCART_JACK_H Copyright © 2015 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR LAN_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2015 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR NTP_AMP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2015 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2015 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 SYMBOL MARK MARK OF OF THE THE SCHEMETIC. SCHEMETIC. Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. LGE Internal Use Only LGE Internal Use Only Only for training and Only for training and service purposes...
Page 33 Request repair for external device/cable Check external External HDMI device and cable device/Cable Replace Main/T-con B/D error normal LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 34 Screen Replace Main/ External Input, Component, normal? T-con B/D RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 35 Measure voltage of each output of Power B/D Normal? Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? Replace Power B/D Replace Power B/D LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 36 - S/W Version HDMI/ DVI, Optical Check and fix Fix in Replace Main B/D Recognition external device/cable accordance error with technical information LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 37 “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) LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 38 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote control Replace remote control damage Stand Replace stand dent LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 39 LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 40 MAIN BOARD. LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 41 15dB, -20dB etc.) LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 42 <ALL MODELS> 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 43 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. 3. If you can`t see the UHD live TV, please connect signal at left side of jack. (Korea model only) LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 44 Content Connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 45 A - 2/5 LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 46 A - 3/5 LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 47 A - 4/5 LGE Internal Use Only LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes Only for training and service purposes...
Page 48 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect A - 5/5 LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 49 B. Power error _No power symptom date Revised Content Check front Power Indicator date ST-BY condition: On or Off Power ON condition: Turn Off LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 50 Standard Repair Process Detail Technical Manual Error Established B. Power error _No power symptom date Revised Check power input voltage Content date Check the DC 13.2V LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...
Page 51 Checking order to check motion remote/wifi Checking order 1.Check Wifi cable condition between Wifi assy & Main board. 2.Check the 3.3V on the terminal 12 A23/A24 LGE Internal Use Only Copyright © 2015 LG Electronics. Inc. All rights reserved. Only for training and service purposes...

This manual is also suitable for:

49uf640 series 49uf640-za series 43uf640-za series

LG 43UF640 Series Service Manual

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Need help?

Questions and answers

Summary of Contents for LG 43UF640 Series

Page 3: Safety Precautions

Page 4: Servicing Precautions

Page 6: Specification

Page 9: Adjustment Instruction

Page 11: Manual Adjustment

Page 14: Exploded View

This manual is also suitable for:

LG 43UF640 Series Service Manual

Quick Links

Need help?

Questions and answers

Related Manuals for LG 43UF640 Series

Summary of Contents for LG 43UF640 Series

Page 3: Safety Precautions

Page 4: Servicing Precautions

Page 6: Specification

Page 9: Adjustment Instruction

Page 11: Manual Adjustment

Page 14: Exploded View

This manual is also suitable for: