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LCD TV
SERVICE MANUAL
CHASSIS : LC91M
MODEL : 26LU50FD
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL60021635 (0908-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
26LU50FD-CA
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 26LU50FD
- Page 1 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 : LC91M MODEL : 26LU50FD 26LU50FD-CA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL60021635 (0908-REV00) Printed in Korea...
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Page 2: Table Of Contents
PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................13 BLOCK DIAGRAM...................16 EXPLODED VIEW .................. 17 SVC. SHEET ....................Copyright ©2009 LG Electronics. Inc. All right 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 ©2009 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 ©2009 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 ©2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
626.0 (H) x 373.0 (V) x 47.1 (D) With inverter Pixel Pitch 0.3mm x 0.3mm Back Light EEFL Display Colors 1.06Billion Coating 3H, AG Copyright ©2009 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes... - Page 7 1920x1080 33.75 60.00 HDTV 1080i 1920x1080 33.72 59.94 HDTV 1080i 1920x1080 56.250 HDTV 1080p 1920x1080 67.43/67.5 59.94/60 HDTV 1080p Copyright ©2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
- Page 8 WXGA HDCP 1360*768 47.72 59.8 84.75 WXGA HDCP 1280*1024 63.595 60.0 108.875 SXGA HDCP 1920*1080 67.5 148.5 WUXGA HDCP Copyright ©2009 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
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Page 9: Adjustment Instruction
If “Error” is displayed, Check connection between computer, jig, and set. Please Check the Speed : To use speed between from 200KHz to 400KHz Copyright ©2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes... - Page 10 4) RGB (PC : 1024 x 768 @ 60hz) 5) HDMI 1/2/3 6) PC Audio In * Display and Sound check is executed by remote control. Copyright ©2009 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
- Page 11 • Check whether written EDID data is correct or not. * For SVC main Assembly, EDID have to be downloaded to Insert Process in advance. Copyright ©2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only...
- Page 12 65 03 0C 00 10 00 HDMI2 65 03 0C 00 20 00 HDMI3 65 03 0C 00 30 00 Except 22” Copyright ©2009 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
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Page 13: Troubleshooting
IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright ©2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes... - Page 14 IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright ©2009 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
- Page 15 IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright ©2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
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Page 16: Block Diagram
BLOCK DIAGRAM Copyright ©2009 LG Electronics. Inc. All right 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 right reserved. - 17 - LGE Internal Use Only Only for training and service purposes... - Page 18 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN_1 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 19 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN_2 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 20 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR DDR2 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 21 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR INTERFACE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 22 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR HDMI THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 23 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 24 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR Module & sub THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 26 EAX61023402 2009.04.28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 27 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR CONTROL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 28 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR 19/20LU5000 IR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
- Page 29 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR 26LU50 IR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ©2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...