LG 49UF6430 Service Manual

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Owner's manual (65 pages)

Easy setup manual (37 pages)

Owner's manual (15 pages)

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Page 1 North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LA5ZC MODEL : 49UF6430 49UF6430-UB MODEL : 49UF6490 49UF6490-UB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69322929 (1508-REV00) Printed in Korea...
Page 2: Table Of Contents
ADJUSTMENT INSTRUCTION ..............9 BLOCK DIAGRAM ................. 21 EXPLODED VIEW .................. 30 SCHEMATIC CIRCUIT DIAGRAM ........... APPENDIX TROUBLESHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 3: Safety Precautions
An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only 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. LGE Internal Use Only Only for training and service purposes...
Page 6: Specification
Rear (1EA), USB Input(3EA) EMF, DivX HD, For SVC (download) Side JPEG, MP3, DivX HD Support USB3.0 only USB1 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 297.00 Only UD Model 3840*2160 297.00 Only UD Model 4096*2160 53.95 23.97 Only UD Model 4096*2160 Only UD Model - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 61.43 29.97 296.703 UDTV 2160P 4096*2160 67.5 UDTV 2160P 4096*2160 59.94 UDTV 2160P(HDMI 1,2 only) 4096*2160 UDTV 2160P(HDMI 1,2only) - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9: Adjustment Instruction
▪ xb 00 06 [Change input source to RGB(1024*768)] ▪ ad 00 10 [Adjust 1920*1080 RGB]▪ aa 00 90 End adj. - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 (1) Play the LAN Port Test PROGRAM. (2) Input IP set up for an inspection to Test Program. *IP Number : 12.12.2.2. - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 C. Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0 - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 12 Monthly : ‘01’ -> ‘01’ Year : ‘2015’ -> ‘19 ⓓ Model Name(Hex): LGTV ⓔ Checksum(LG TV): Changeable by total EDID data. ⓕ Vendor Specific(HDMI) 5.2.4.1. EDID # DTS HDMI1 (C/S: A0,F3)_6G_2D ONLY_UHD Deep Color ON (2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2 / HDMI3 / HDMI4 are Writing and display OK or NG.
Page 13 # DTS HDMI1 (C/S: E6,80)_3G_2D ONLY_UHD Deep Color OFF # AC3 HDMI2 (C/S: A0,EC)_6G_2D ONLY_UHD Deep Color ON # DTS HDMI2 (C/S: E6,70)_3G_2D ONLY_UHD Deep Color OFF - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 # AC3 HDMI2 (C/S: A0,EC)_6G_2D ONLY_UHD Deep Color ON # PCM HDMI1 (C/S: A0,6E)_6G_2D ONLY_UHD Deep Color ON # AC3 HDMI1 (C/S: E6,89)_3G_2D ONLY_UHD Deep Color OFF - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 # PCM HDMI2 (C/S: E6,EB)_3G_2D ONLY_UHD Deep Color (3) RS-232C Command RS-232C COMMAND Explanation DATA Camera Function Start. Camera Function End. - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 RS -232C Pat t ern Generat o r Signal Source * If TV internal pattern is used, not needed - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18: Color Temperature
* Use only AUO, INX, Sharp, CSOT, BOE TEST program (It’s connected to MSHG-600) (Cool temp Spec is 13000K) Cool Medium Warm spec target - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 - If OK, Good lamp will lit up and the stopper will allow the pallet to move on to next process. Tuner GND is separated. - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.) - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21: Block Diagram
BLOCK DIAGRAM 1. LM14A + URSA11 Circuit Block Diagram - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 30: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 30 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 LM14A 2015-01-23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN1_SYSTEM THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 32 LM14A 2014-11-06 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN2_POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 33 LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A DDR LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 34 LM14A 2015-01-08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN4_EXT_IN/OUTPUT THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 35 LM14A 2014-11-13 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A_GND LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 36 LM14A(UF68/UF64) 2015-01-23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LM14A_PWR_1_13V_only LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 37 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR LM15U_PWR_2_ALL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 38 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 39 2015-02-06 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR HDMI_REAR_3INPUT 033_04 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 40 2015-01-23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. JACK_COMMON_H_W/O HP LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 41 UF64/6800 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. IR/KEY LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 42 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS UF64/6800 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 43 LM14A 2015-01-21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR LAN_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 44 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 45 UF64/6800 2014-11-06 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TU_CIRCUIT LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 46 UF64/6800 2015-01-05 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR TU_SYMBOL_H THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 47 2015-01-29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Vx1 51P LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 48 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LM14A ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR eMMC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 49 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR CLIP&Vx1_CAP THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 50 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR Tuner_GND_for UF64 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 51 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11 INPUT THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 52 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. URSA11_DDR 15/01/21 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 53 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11_GPIO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 54 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR URSA11_DCDC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 15/01/21 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 55 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. URSA11_Power LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 58 Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 59 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 60 Check and Normal voltages of Power No Video/ replace voltage? Board ( 12V) No audio MAIN B/D Replace Power Board and repair parts LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 61 2. Install Booster S/W Upgrade Contact with signal distributor Normal Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 62 Request repair for external device/cable Check external External device Replace Main/T-con B/D HDMI device and /Cable error cable normal LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 63 Screen (Check normal operation of Main /T-con normal? External Input, Component, 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 64 Measure voltage of each output of Power B/D Normal? ※ Normal Replace Main B/D voltage? Close Normal Check 12V(For STBY 3.3V) voltage? ☞A18 Replace Power B/D Replace Power LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 65 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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 66 Screen normal voltage Speaker off Board Cancel OFF Replace Power Board and repair parts Check Disconnection Replace MAIN Board Speaker disconnection Replace Speaker LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 67 Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 68 (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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 69 Down load the Firmware * If you conduct the loop at 3times, change the M4. * INSTART MENU14.RF Remocon Test3. Firmware download LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 70 Voltage? 1pin Main B/D Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 71 Check the Camera Ver. Reconnect the Normal Replace INSTART menu is “NULL”? operation? Camera module Main B/D Close Change the Camera module LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 72 - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 73 “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 74 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 75 A-2/5 <Appendix> Defected Type caused by T-Con/ Exchange Power Board (PSU) A-3/5 Inverter/ Module Exchange Module (1) A-4/5 Exchange Module (2) A-5/5 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 76 C. Audio error_ No audio/Normal video Voltage and speaker checking method when there is no audio E. Etc Tool option changing method LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 77 <ALL MODELS> After turning on the power and disassembling the case, check with the naked eye, whether you can see light from locations. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 78 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. (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 79 <ALL MODELS>  Advanced Channels Channel Tuning Manual Tuning When the signal is strong, use the attenuator (-10dB, - 15dB, -20dB etc.) LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 80 Content date <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 81 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 82 Revised 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 83 Content Check Link Cable(VX1) reconnection condition date <ALL MODELS> Check the contact condition of the Link Cable, especially dust or mis insertion. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 84 You can view 6 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!) LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 85 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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 86 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION A - 2/5 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 87 Appendix : Exchange Power Board (PSU) No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 88 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 89 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 90 B. Power error _No power symptom date Revised Content Check front Power Indicator date <LM14A> 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 91 2 PWM_DIM2 3 GND 4 12V 5 12V 6 12V 7 12V 8 12V 9 GND 10 GND 11 INV_CTL 12 PWM_DIM1 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 92 <ALL MODELS> Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 93 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 LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...
Page 94 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. LGE Internal Use Only Copyright 2015 LG Electronics Inc. All rights reserved. Only for training and service purposes...

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49uf6490 49uf6430-ub 49uf6490-ub 43uf6400 49uf6400 49uf6400-ua ... Show all

LG 49UF6430 Service Manual

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Summary of Contents for LG 49UF6430

Page 2: Table Of Contents

Page 3: Safety Precautions

Page 4: Servicing Precautions

Page 6: Specification

Page 9: Adjustment Instruction

Page 18: Color Temperature

Page 21: Block Diagram

Page 30: Exploded View

Page 57: Trouble Shooting Guide

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Table of Contents