LG M2550D Service Manual

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Owner's manual (106 pages)

Owner's manual (106 pages)

Owner's manual (78 pages)

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LED LCD TV

SERVICE MANUAL

CHASSIS : LD11C

MODEL : M2550D

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL63642153(1108-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

M2550D-PSN

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

Table of Contents

Summary of Contents for LG M2550D

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 : LD11C MODEL : M2550D M2550D-PSN CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL63642153(1108-REV00) Printed in Korea...
Page 2: Table Of Contents
CONTENTS ....................2 PRECAUTIONS ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION..............11 TROUBLE SHOOTING ................15 BLOCK DIAGRAM...................20 EXPLODED VIEW .................. 21 SCHEMATIC CIRCUIT DIAGRAM............... Copyright ©2011 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...
Page 3: Precautions
An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright ©2011 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 4 Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the Copyright ©2011 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only...
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 right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 6: Specification
Variation(%) 75 % Contrst Ratio 1000 Color Coordinates 0.646 0.331 Green 0.294 0.635 Blue 0.150 0.067 White 0.313 0.329 Copyright ©2011 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
Page 7 Humidity : 20 % ~ 80 % Storage Environment Temp : -10°C~60°C non condensing Humidity : 5 % ~ 90 % non condensing Copyright ©2011 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 8 - Input signal : 100IRE White pattern (Pattern #4 :MSPG series) Full Black pattern (Pattern #2 : MSPG series) - Equipment : CA-210 (Ch. 14 WLED) or equivalent device. Copyright ©2011 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only...
Page 9 HDTV 1080P 1920* 1080 56.250 148.5 HDTV 1080P 1920* 1080 67.43 / 67.5 59.94 / 60 148.35/ 148.50 HDTV 1080P Copyright ©2011 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 10 1920* 1080 56.25 148.5 HDTV 1080P 1920* 1080 67.432 59.94 148.350 HDTV 1080P 1920* 1080 67.5 60.00 148.5 HDTV 1080P Copyright ©2011 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
Page 11: Adjustment Instruction
5) Click "Auto" tab and set as below 6) Click "Run". 7) After downloading, check "OK" message. filexxx.bin (8) ……….OK Copyright ©2011 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 12 2) Select "1.Tool Option" and Push “OK” button 3) Punch in the number. (Each model has their number.) 4) Completed selecting Tool option Copyright ©2011 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
Page 13 (ex M2350D) 4) HDMI1/2 5) PC Audio In * Display and Sound check is executed by Remote control Copyright ©2011 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
Page 14 * After check all, Press the 'EXIT' key of ADJ remote controller to go out SVC menu. * When doing Adjustment, Please make circumstance as below. Copyright ©2011 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
Page 15: Troubleshooting
TROUBLESHOOTING 1. Power- Up Boot Fail Trouble Shooting Copyright ©2011 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
Page 17 3. Digital TV Video Trouble Shooting 4. Analog TV Video Trouble Shooting Copyright ©2011 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
Page 18 5. Component Video Trouble Shooting 6. RGB Video Trouble Shooting Copyright ©2011 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
Page 19 7. HDMI Video Trouble Shooting 8. All Source Audio Trouble Shooting Copyright ©2011 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
Page 21: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...

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M2550d-psn

LG M2550D Service Manual

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Summary of Contents for LG M2550D

Page 2: Table Of Contents

Page 3: Precautions

Page 6: Specification

Page 11: Adjustment Instruction

Page 15: Troubleshooting

Page 20: Block Diagram

Page 21: Exploded View

This manual is also suitable for: