LG 55LV3730 Service Manual

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LED LCD TV

SERVICE MANUAL

CHASSIS : LB12B

MODEL : 55LV3730

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL67007024 (1104-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

55LV3730-TD

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

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Summary of Contents for LG 55LV3730

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LB12B MODEL : 55LV3730 55LV3730-TD CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67007024 (1104-REV00) Printed in Korea...
Page 2: Table Of Contents
PRODUCT SAFETY ................. 3 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............7 EXPLODED VIEW .................. 14 SCHEMATIC CIRCUIT DIAGRAM .............. Copyright © 2011 LG Electronics. Inc. All rights reserved. - 2 - LGE Internal Use Only Only for training and service purposes...
Page 3: Product Safety
An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright © 2011 LG Electronics. Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 4: Specification
AV1,2 SDPIF out (1EA) SPDIF out USB (2EA) EMF, DivX HD, For SVC(download) JPEG, MP3, DivX HD Plus Copyright © 2011 LG Electronics. Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
Page 5 VESA 1024*768 48.363 60.00 65.00 VESA(XGA) 1360*768 47.72 59.8 84.75 WXGA 1920*1080 66.587 59.93 138.625 WUXGA FHD model Copyright © 2011 LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 6 48.363 60.00 65.00 VESA(XGA) HDCP 1360*768 47.72 59.8 84.75 WXGA HDCP 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model Copyright © 2011 LG Electronics. Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
Page 7: Adjustment Instruction
- Pattern : Horizontal 100% Color Bar Pattern - Pattern level : 0.7±0.1 Vp-p Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port - Image Copyright © 2011 LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 9 6) If ADC calibration is failure, after recheck ADC pattern or condition retry calibration. Error message refer to 5). Copyright © 2011 LG Electronics. Inc. All rights reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 10 - VAL: FOS Data value - CS: Checksum of sent data - A: Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX] Copyright © 2011 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
Page 11 W/B Adj. must begin as start command “wb 00 00” , and finish as end command “wb 00 ff”, and Adj. offset if need. Copyright © 2011 LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only...
Page 12 3) You must remove the pairing with the TV Set by select ‘OK’ Key + ‘Mute’ key on the controller for 5 seconds. Fig.3 Connect the Dongle Copyright © 2011 LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only...
Page 13 • LEAKAGE CURRENT: At 0.5 mArms 2) Select “Tool Option 1” and push “OK” key. 3) Punch in the number. (Each model has their number.) Copyright © 2011 LG Electronics. Inc. All rights reserved. - 13 - LGE Internal Use Only...
Page 14: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
Page 15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN & NAND FLASH Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN POWER Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN AUDIO/VIDEO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN DDR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR L_DIMMING THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 2010.11.11 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON CHB THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LV7 HDMI THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 COMM JACK Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 ETHERNET Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 EU USB Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 EU LVDS Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 EU AMP Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 30 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 EU IR Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 EU Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 32 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SMD GASKET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 34 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LV7 AU TUNER Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 Repair Guide for ALEF BCM Chassis Model : 32/37/42/47/55LV3730-TD FEB. 19 , 2011 LG Electronics/ LCD TV By M.R.VIJAYSHANKAR Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 Feature Edge Type Edge LED Best picture quality + thin TV w/ Local Dimming LED Array Upper Metal Cover structure Model **LV37*0-T* LED Array is on the side of Module Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 39 To T-CON Main processor, DDR Memory BOARD Flash Memory Micom for Key/IR sensing HDMI switch (3:1) Soft touch +IR Audio AMP (10W+10W) Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 A/V2 CVBS Sub Micom (NEC) COMP COMP1 Rear PC-RGB RGB,H/V L/R In PC-AUDIO OPTIC SPDIF OUT M-Remote UART Module Ethernet RS-232C Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 EDID EEPROM [RGB_DDC_SDA] AT24C02BN-10SU-1.8 RGB_DDC_SDA [AV2_CVBS_DET] AV DET [BSC_S_SCL] [BSC_S_SDA] MICOM [EDID_WP] RGB DET [DSUB_DET] // GPIO [PC_L_IN] [PC_R_IN] PC L,R Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 Main / PSU cable Main / Module LVDS cable 51PIN LED driver / PSU 15pin IR/Touch Cable (W/ Tube) Speaker Cable Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 Main / PSU cable Main / Module LVDS cable 51PIN LED driver / PSU 15pin IR/Touch Cable (W/ Tube) Speaker Cable Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 44 Main / PSU cable Main / Module LVDS cable 51PIN LED driver / PSU 15pin IR/Touch Cable (W/ Tube) Speaker Cable Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 45 Main / PSU cable Main / Module LVDS cable 51PIN Main / PSU (Inverter) Module / PSU 15pin IR/Touch Cable (W/ Tube) Speaker Cable Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 Main / PSU cable Main / Module LVDS cable(51/41) Main / PSU (Inverter) Module / PSU 15pin IR/Touch Cable (W/ Tube) Speaker Cable Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 47 Interconnection – sub PCB( LV37 Series ) Soft Touch + IR PCB SPK unit Soft Touch IR Key PCB Connected by 15 Pin Cable To Main Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 No audio/Normal video C. Audio error Wrecked audio/discontinuation/noise No response in remote controller, key error, D. Function error P-10 recording error, memory error Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 Always check/record S/W Version and White Balance value before replacing the Main Re-enter White Balance value Replace Main Board /Digital Board Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 50 Normal voltages of Power No Video/ replace voltage? No audio Board MAIN B/D ( 5V,12V,24V…) Replace Power Board and repair parts Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 51 ※ Check expert mode with user remote Check and controller Normal Normal fix ANT screen? screen? signal (Request to cable/antenn a provider) Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 Standard Repair Process Established A. Video error Error LCD TV date symptom Color error Revised date ☞A-3-1 ☞A-4-1 ※ Check Check color by input and replace -External Input Color Link Cable Color Color -COMPONENT Replace Main B/D Replace Main B/D error? (LVDS) and error?
Page 53 Replace Main B/D replace Link normal? -RGB connection Cable -HDMI/DVI condition Replace Request module repair for Check Test mode external RGB screen device Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 54 (Check normal operation Replace Main B/D normal? of External Input, HDMI/ Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 ※ For Pacific 2, operation display LED can be off even with ST-BY output of 3.5V → In this case, replace the Digital B/D instead of the Power Board Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 56 Replace Main B/D voltage? Check Power B/D voltage * Caution Replace Power B/D Check and fix exterior of Power B/D/Part Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 57 Speaker off Board repair parts Check Input Signal Cancel OFF and describe Check Replace MAIN Disconnection Speaker Board disconnectio Replace Speaker Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 58 Connect and Normal signal error) check other audio? Check and fix external device external device ☞A-2-1, A-2-2 Check and fix external device Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 Replace Touch PCB W/ Front Cabinet Adjust THR Value Min : 5 / MAX 25 5 is most Sensitive Work correctly? Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 60 B. Power error_No power Checking method when power is ON B-1-3 POWER BOARD voltage measuring method B-1-4 Continue to next page Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 D. Function error_ No response in remote controller, key error Check 3.5V and 5V of IR Terminal D-1-3 Check Touch Value and Threshold D-1-4 Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 63 LED Driver B+ 24V measuring method Content A-1-2 date Measure the DC 24V supplied to LED Driver from the Power Board. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 64 24V is provided from the Power Board and supplied to LED Check each voltage output (5V,12V,24V) in the Power Board. Driver PCB. Check the PIN contact condition and connection. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 65 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 © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 66 Power Board voltage measuring method Content A-1-5 date Check each voltage output (3.5V, 12V, 24V) supplied from Power Board to Main Board. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 67 TUNER input signal strength checking method A-2-1 Content date Check MENU - SETUP - Support - Signal Test Check Signal Strength and Quality Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 68 Enter Auto Channel Press the number button 1,1,1,1,1 HOST menu is displayed on the screen. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 70 1. Press the Menu button on the remote controller 2. Enter into Support -> Picture Test 3. The TV Display Test Image Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 71 LCD TV connection diagram (09) Revised Content A-4-1 date As the part connecting to the external input, check the screen condition by signal Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 72 1. Press the Menu button on the remote controller 2. Enter into Support -> Picture Test 3. The TV Display Test Image Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 74 B. Power error _No power LCD TV symptom date Revised Check front display LED Content B-1-1 date ST-BY condition: Red Power ON condition: Blue Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 75 2. Check the connected part with input from the POWER BOARD and whether the fuse is connected. 3. Check the ST-BY DC 3.5V output voltage from the POWER BOARD. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 76 3. Check the AC-DET (AC) DC3.5V voltage on POWER BOARD. 4. Check the POWER ON High (About DC 1.8V or above) voltage with input from POWER BOARD. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 77 24V is provided from the Power Board and supplied to LED Check each voltage output (5V,12V,24V) in the Power Board. Driver PCB. Check the PIN contact condition and connection. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 78 Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 79 Revised POWER BOARD PIN voltage checking method Content B-2-2 date Check the voltage when the Power OFF mode is not shown Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 80 1. Press the MENU button on the remote controller 2. Select the AUDIO function of the Menu 3. Select TV Speaker from Off to On Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 81 1. Press the Menu button on the remote controller 2. Enter into Support -> Sound Test 3. The TV Play the Test Music Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 82 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 © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 83 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 © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only...
Page 84 1. Check Connection state of Main Board. 2. Check Connection state of Touch PCB 3. Check Cable and Connection State Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 85 1. Remove Cable of Touch BCB 2. Remove Touch PCB Cover carefully 3. Check Asseble state of Touch PCB 4. Keep the guide of right side Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 86 Analog Tester needle moves slowly, and defective when it does not move at all. 3. Input voltage terminal: 3.5V_ST (Pin 6) 4. Remote controller receiver terminal: IR (Pin 9) Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 87 3. When touch the Touch PCB, and Touch value must lager than 10 4. IF Touch value is less than 10, adjust THR Value. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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Summary of Contents for LG 55LV3730

Page 2: Table Of Contents

Page 3: Product Safety

Page 4: Specification

Page 7: Adjustment Instruction

Page 14: Exploded View

This manual is also suitable for: