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LG 22LN4060 Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LM91P
MODEL : 22LN4060
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67698506 (1307-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
22LN4060-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 22LN4060

  • 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 TV SERVICE MANUAL CHASSIS : LM91P MODEL : 22LN4060 22LN4060-TB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67698506 (1307-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    ADJUSTMENT INSTRUCTION ..............7 TROUBLE SHOOTING GUIDE ............... 10 BLOCK DIAGRAM .................. 18 EXPLODED VIEW .................. 19 SCHEMATIC CIRCUIT DIAGRAM .............. - 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 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. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    MP3, JPEG,Movie Rear(1EA) AV Audio Output RF/AV Rear(1EA) Audio Input (1EA) L/R Input(2EA) Service jack 3.5mm headphone jack Rear(1EA) - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Adjustment Instruction

    1) After Aging Start, Keep the Power ON status during 5 Minutes. 2) In case of LCD, Back-light on should be checked using no signal or Full-white pattern. - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 (3) Punch in the number and press 'OK'. (Each of models has their number) (4) Correct 'Tool Option2' ~ 'Tool Option5'. (5) Completed adjusting Tool option. - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 2) Select "Tool Option 1" and push "OK" key. 3) Punch in the number. (Each model has their number.) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Trouble Shooting Guide

    11pin of P120, change IR board when use remote controller? Or check Line short or open of P120 Insert F/W X501 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 If is under 11V at L110, Check open and short Of line between L110 and P101. Insert the F/W back or REPLACE LCD MODULE - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Or Check LVDS cable have damage. Another is change IC501. Change module WAVEFORMS 6,7,12,13,15,16,18,19 Pin of 1201 9,10Pin of P101 (Data Line) (Clock line) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 44 pin of IC501? IC501 or TU401 Change Main PCBA WAVEFORMS 43,44pin of IC501 4Pin of TU401 (SDA) 3Pin of TU401 (SCL) - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 Check Line between JK101 and IC501 is open or short, Another is Is waveform at R505 change AV cable Change IC501 WAVEFORMS R505 (CVBS) - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 Another is change IC301 Change speaker and wire R301(SDO) R302(WS) R303(SCK) 10pin of IC301 11pin of IC301 R304(MCLK) 1pin of P301(Audio out) - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 ,44 pin of IC501? IC501 or TU401 Change Main PCBA WAVEFORMS 43,44pin of IC501 4Pin of TU401 (SDA) 3Pin of TU401 (SCL) - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Check Line between JK101 and IC501 is open or short, Another is Is waveform at C520,C521 change AV cable Change IC501 WAVEFORMS C520,C521(audio in) - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: Block Diagram

    BLOCK DIAGRAM 12~19V - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. INPUT1/LVDS INPUT1 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR INPUT2 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. INPUT2 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AUDIO Copyright © 2013 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 TUNER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER & IR Copyright © 2013 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 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN SOC MAIN SOC Copyright © 2013 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. POWER POWER Copyright © 2013 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. DC BOOST UP INPUT1 Copyright © 2013 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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