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LG 22LD320H Service Manual
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LG 22LD320H Service Manual

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See also: Owner's Manual
LCD TV

SERVICE MANUAL

CHASSIS : LB0AV
MODEL : 22LD320H
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67223419 (1107-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
22LD320H-TB
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 22LD320H

  • Page 1: Service Manual

    Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LB0AV MODEL : 22LD320H 22LD320H-TB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67223419 (1107-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    PRODUCT SAFETY ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 BLOCK DIAGRAM.................. 16 EXPLODED VIEW .................. 17 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: Servicing Precautions

    Copyright ©2011 LG Electronics. Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright ©2011 LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    RGB/DVI Audio Component L/R Input SDPIF out (1EA) SPDIF out Headphone out (1EA) Antenna, AV1, Component, RGB, HDMI1, HDMI2 DVIX Copyright ©2011 LG Electronics. Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 1360*768 47.72 59.8 84.75 WXGA HD Model 1280*720 74.25 720p DTV Standard 1920*1080 67.5 148.5 1080P FHD Model only Copyright ©2011 LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 8: Hdmi Input

    1280*768 47.78 59.87 79.5 WXGA HDCP 1360*768 47.72 59.8 84.75 WXGA HDCP 1920*1080 67.25 148.5 1080P FHD Model only Copyright ©2011 LG Electronics. Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Adjustment Instruction

    3) Click “Read” tab, and then load download file(XXXX.bin) by clicking “Read”. 4) Click “Connect” tab. If “Can’t” is displayed, check connection between computer, jig, and set. Copyright ©2011 LG Electronics. Inc. All rights reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 3) Punch in the number. (Each model has their number) * Display and Sound check is executed by Remote control. 4) Completed selecting Tool option. Copyright ©2011 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only...
  • Page 11 Enter the mode of White-Balance, the pattern will come out. Full White Pattern CA-210 COLOR ANALYZER TYPE: CA-210 RS-232C Communication Copyright ©2011 LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 12: Edid Data

    And Mechanical Power Switch must be set ‘Mode In’ Carry the command. “ON”. Download 00 10 Automatically Download (The use of a internal pattern) Copyright ©2011 LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 DVI-D to HDMI or HDMI to HDMI MODEL MODEL NAME(HEX) LG TV 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 ⓔ Checksum: Changeable by total EDID data. EDID C/S data...
  • Page 14 : EEPROM Sub Address high (00~1F) : EEPROM Sub Address low (00~FF) Data : Write data : CMD+LENGTH+ADH+ADL+Data_1+…+Data_n Delay : 20ms Copyright ©2011 LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 (RS232 : ci 00 20) CMD 1 CMD 2 Data 0 3) Result value i 01 OK 1d1852d21c1ed5dcx CI+ key Value Copyright ©2011 LG Electronics. Inc. All rights reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 16: Block Diagram

    BLOCK DIAGRAM 74LCX244 Buffer IC1902 CI Slot (P1901) Tuner (TD TJ -S001D) TU370 2 Copyright ©2011 LG Electronics. Inc. All rights reserved. - 16 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: 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. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. FLASH/EEPROM/GPIO Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN_2 Copyright © 2010 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 DDR3(FRC) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright © 2010 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 IR & LED THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-CON Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright © 2010 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 COMMON AREA THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 EAX62115501 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Commercial Copyright © 2010 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 T-CON Power Table THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 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. Pro idiom Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 EAX62115501 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR DDR3(256MB) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 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 EU/CHINA CAN TUNER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 EAX62115501 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LVDS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 Ver. 1.1 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[NTP] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 Ver. 1.1 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SCART/RCA THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR PCMCI THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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