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LCD TV
SERVICE MANUAL
CHASSIS : LP81A
MODEL : 32LG50FR
MODEL :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
North/Latin America
Europe/Africa
Asia/Oceania
32LG53FR
32LG55FR
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
32LG53FR-TA
32LG53FR-TD
32LG53FR-TE
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Summary of Contents for LG 32LG50FR
- 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 : LP81A MODEL : 32LG50FR 32LG53FR-TA MODEL : 32LG53FR 32LG53FR-TD MODEL : 32LG55FR 32LG53FR-TE CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Page 2: Table Of Contents
SAFETY PRECAUTIONS ................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................19 EXPLODED VIEW .................. 20 SVC. SHEET ....................Copyright © 2008 LG Electronics. Inc. All right reserved. - 2 - 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. Copyright © 2008 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 © 2008 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 © 2008 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
0.36375 x 0.36375 Back Light 32” Display Colors Coating 3H, AG/ 2H, AG LPL, CMO, AUO / Sharp Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes... - Page 7 HDTV 1080I 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 © 2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
- Page 8 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.5 HDTV 1080P 1920*1080 74.25 HDTV 1080P 1920*1080 33.75 74.25 HDTV 1080P Copyright © 2008 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
( 2 ) f i l ex x x .bi n (4) ..OK Double click Copyright © 2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes... - Page 10 * Refer to Job Expression of each main chassis ass’y 0x02 instruction. (EBTxxxxxxxx) for Option value * Never push the IN-STOP KEY after completing the function inspection. Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
- Page 11 (For Automatic Adjustment) The data is same without Physical address -> Physical address(F) : HDMI 1 -> 10, HDMI 2 -> 20 Copyright © 2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
- Page 12 - In case of decreasing the x, decreasing the R : fix G - In case of decreasing the y, decreasing the G : fix R Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only...
- Page 13 3-Page 0~7F Read 3-Page 80~FF Read * Purpose : To read(84h) the appointment Address of E2PROM by 128(80h)-byte Copyright © 2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
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Page 14: Troubleshooting
After all cables connect is removed to PSU, the AC voltage marking is authorized on manual. When ST-BY 5V is not operated. replace PSU. Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only... - Page 15 Check the power. Check the Tuner. Block A Is the LVDS Cable inserts well. Cable connected? well Change the IC(IC801) Copyright © 2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
- Page 16 Is video input of Check the input source. the S-Video Jack normal? (Check R8041/42) Same as Block A. Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
- Page 17 9. Unusual display from RGB model Is video input of the Com2 Check the input source. Jack normal? (Check R8035/37/39) Change IC801. Copyright © 2008 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
- Page 18 Check the Tuner In/Out. Only RF is no sound. Is IC601 operated Replace IC601 normality? Replace Main B/D. Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
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Page 19: Block Diagram
BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes... -
Page 20: 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. - 20 - LGE Internal Use Only Only for training and service purposes... - Page 21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 2008 LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 22 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 2008 LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 23 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. 2008 LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes...
- Page 24 Aug., 2008 P/NO : MFL41394463 Printed in Korea...