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LG 32LG2000 Service Manual
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LG 32LG2000 Service Manual

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LCD TV
SERVICE MANUAL
CHASSIS : LD84A
MODEL : 32LG2000
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
North/Latin America
Europe/Africa
Asia/Oceania
32LG2000-ZA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com

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Summary of Contents for LG 32LG2000

  • 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 : LD84A MODEL : 32LG2000 32LG2000-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ...............10 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................20 EXPLODED VIEW .................. 22 SVC. SHEET ....................Copyright © 2008 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 © 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...

  • Page 6: Specification

    0.17025(H) x 0.51075 (V) Back Light CMO(HD) 16 CCFL Sharp(HD) 12 CCFL LGD(HD) 12 EEFL Display Colors 16.7M Coating 3H, AG Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 SPDIF out Earphone (1EA) Antenna, AV1, AV2, AV3, Component, RGB, HDMI1, HDMI2, HDMI USB (1EA) For service only Copyright © 2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 22LG3000-ZA only 1280*1024 63.595 60.0 108.875 SXGA FHD Model only 1920*1080 66.647 59.988 138.625 WUXGA FHD Model only Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 1280*1024 63.595 60.0 108.875 SXGA FHD Model only, HDCP 1920*1080 66.647 59.988 138.625 WUXGA FHD Model only, HDCP Copyright © 2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 10: Adjustment Instruction

    DTV/ATV test on production line. Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 4) RGB (PC : 1024 x 768 @ 60hz) 5) HDMI 6) PC Audio In * Display and Sound check is executed by Remote controller. Copyright © 2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 - Set Input to RGB and connect D-sub cable to set - Measurement Condition: (100~240V@ 50/60Hz) - Confirm DPM operation at the state of screen without Signal Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only...
  • Page 13 Confirm whether is normal or not when between power board's ac block and GND is impacked on 1.5kV(dc) or 2.2kV(dc) for one second Copyright © 2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 14: Troubleshooting

    After all cables connect is removed to PSU, the AC voltage Replace main board. marking is authorized on manual. When ST-BY 5V, +15V are not operated, replace PSU. Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 Before change Main Board, Change Main bord. S/W download and set White Balance value. Check S/W version and White Balance value. Copyright © 2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 TU500_ (Check Pin18, Pin21,22) pin24~pin34) Pin19) Same as Block A. Check the Power. Check the Tuner. Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 Check the input source. normal?(Check R733, 734,735) If there is normal status, Replace main board. Same as Block A. Copyright © 2008 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 Switching IC normal? Check the IC902. (Check IC902) If there is normal status, Replace main board. Same as Block A. Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 Before change Main Board, Change Main bord. S/W download and set White Balance value. Check S/W version and White Balance value. Copyright © 2008 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 20: Block Diagram

    BLOCK DIAGRAM PCM_CD_ON TS_Parallel PCM_ADD PCM_DATA TS_Serial SPDIF Out Head phone Out Side_Y/C/V/L/R TV Tuner Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 MEMO Copyright © 2008 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...

  • Page 22: 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. - 22 - LGE Internal Use Only Only for training and service purposes...
  • Page 23 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 Aug., 2008 P/NO : MFL41037113 Printed in Korea...

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