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LG 55WT30MS Service Manual
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LG 55WT30MS Service Manual

LG 55WT30MS Service Manual

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MONITOR SIGNAGE
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO :
MFL63725120 (1312-REV00)
LW36D
55WT30MS
North/Latin America
Europe/Africa
Asia/Oceania
55WT30MS-BL
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 55WT30MS

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com MONITOR SIGNAGE SERVICE MANUAL CHASSIS : LW36D MODEL : 55WT30MS 55WT30MS-BL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL63725120 (1312-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    ADJUSTMENT INSTRUCTION .............. 10 TROUBLE SHOOTING ................16 BLOCK DIAGRAM .................. 27 EXPLODED VIEW .................. 28 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Precaution

    Please use only a plastic screwdriver to protect yourself fabrikat og type. from shock hazard during service operation. Levér det brugte batteri tilbage til leverandøren. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    - 4 - 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. 3. Solder the connections. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    1920×1080 @ 60 Hz Analog Recommend 1920×1080 @ 60 Hz Resolution 1920×1080 @ 60 Hz Digital Recommend 1920×1080 @ 60 Hz - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 1680 1680 x 1050 V(Lines) 59.954 1089 1050 H(Pixels) 148.5 67.5 2200 1920 1920 x 1080 V(Lines) 1125 1080 - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080i 50Hz For Australian 1080/60i 33.75 HDTV 1080i 60Hz 1080/50P 56.25 HDTV 1080P 50Hz 1080/60P 67.5 HDTV 1080P 60Hz - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 HDTV 1080i 60Hz ATSC 1920*1080 33.72 59.94 HDTV 1080i 59.94Hz 1920*1080 56.25 HDTV 1080P 50Hz 1920*1080 67.5 HDTV 1080P 60Hz - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Adjustment Instruction

    · Enter Internal ADC mode by pushing “►” key at “ADC Cali- bration” → Caution: Using ‘power on’ button of the Adjustment R/C , power on Multi-vision. - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 2) Changeable Data : *: Serial No : Controlled / Data:01 **: Month : Controlled / Data:00 ***:Year : Controlled ****:Check sum - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 * Push The “IN STOP KEY” after completing the function inspection. And Mechanical Power Switch must be set “ON”. - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 (1 -> 2) by D-book 4.0 * When PIP hot key use, Should change the USB files name as “pip_test.jpg”. - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 2) Start Button (Hotkey : 1 or Enter) 3) Result (OK / NG ) 4) Process state 5) Exit - OK → NG - NG - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 - But your downloaded version is High, USB data is auto- matically detecting 3) Show the message "Copying files from memory" 4) Updating is staring. - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: Trouble Shooting

    Check Main Scaler IC4 ALL VCC and Cristal X201 24Mhz SCL/SDA(70/71Pin) operation Right? YES(HIGH) 1. CHECK IC4 2. CHECK All Vcc of IC4 - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Check SCAILER IC4 ALL Voltage and Cristal X201 24Mhz wave of IC4 Right? 1. CHECK LCD module 2. CHECK T-CON BOARD - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 INPUT JACK (JK903) CHECK SIGNAL CABLE AND OUTPUT DEVICE 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 CHECK Vcc AND PERIPHERALS OF 905 of Buffer Q905 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 ON JK903 1,2,3Pin RGA to D-sub cable is recommended 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 2. Check FET Q802 and IC803 1.2V, IC804 3.5V Output signal WAVE ? 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 2. Check FET Q802 and IC803 1.2V, IC804 3.5V Output signal WAVE ? 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 2. Check FET Q802 and IC803 1.2V, IC804 3.5V Output signal WAVE ? 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 CHECK IC1006/IC1007 Vcc 5V ? 1. Check IC1006/IC1007 and Check IC4 USB Control 1. CHECK IC4 2. CHECK Vcc OF IC4 AND PERIPHERALS - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 1. Check SCL/SDA Line between SCAILER IC4and IC701 (12/13 pin) IC701(NTP7500) 2. CHECK Vcc OF IC4 AND PERIPHERALS INPUT Signal IC701 Audio Processor Vcc 24V, 3.3V AND PERIPHERALS - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 1. CHECK FLAG_T Line and BYPASS_T(1pin and 8pin of P1303) P1303 CHECK cables of Touch sub Boards CHECK cables between Main and Touch sub Board - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: Block Diagram

    BLOCK DIAGRAM - 27 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 28: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 28 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR S7/FLASH/EEPROM/GPIO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right 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. AV IN/LVDS Copyright ⓒ 2013 LG Electronics. Inc. All right 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. Main IC Power Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. RTC/SENSOR Copyright ⓒ 2013 LG Electronics. Inc. All right 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. AUDIO AMP Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI/DVI 7_HDMI_SiI9489 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. RS232/RGB Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 EAX65328801 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 EAX65328801 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LVDS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR USB TO ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 EAX65328801 13/02/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 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 ⓒ 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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55wt30ms-bl