LG 37LG30R Service Manual
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LG 37LG30R Service Manual

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精品图纸网 http://www.79wl.com
LCD TV

SERVICE MANUAL

CHASSIS : LP81A
MODEL : 37LG30R(A)
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Internal Use Only
website:http://biz.LGservice.com
37LG30R(A)-TA

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Summary of Contents for LG 37LG30R

  • Page 1: Service Manual

    Internal Use Only website:http://biz.LGservice.com LCD TV SERVICE MANUAL CHASSIS : LP81A MODEL : 37LG30R(A) 37LG30R(A)-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. 精品图纸网 http://www.79wl.com...

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ...............13 TROUBLE SHOOTING ................17 BLOCK DIAGRAM...................22 EXPLODED VIEW .................. 23 SVC. SHEET ....................Copyright 2008 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...

  • 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 精品图纸网 http://www.79wl.com...

  • Page 4: Servicing Precautions

    Copyright 2008 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • 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 精品图纸网 http://www.79wl.com...

  • Page 6: Specification

    Storage Environment 1) Temp. : -20 ~ 60 deg 2) Humidity : 0 ~ 85 % Input Voltage AC100 ~ 240V, 50/60Hz Copyright 2008 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 7 0.600 x 0.600 (H) x (V) Back Light 24CCFL Display Colors Coating 3H,AG/ 2H, AG LPL,CMO,AUO / Sharp Copyright 2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 8 White Typ. 0.270. Typ. LPL47" -0.03 0.292 +0.03 (HD) 0.638 0.342 Green 0.296 0.615 Blue 0.144 0.064 Copyright 2008 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 9 LPL 42"/47" (FHD) 1000:1 1500:1 SHARP 52" (FHD) Luminance Variation 1.3 (1.25) All w/o Sharp 52" (Sharp 52") Copyright 2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 10 Dynamic CR 9000:1 12000:1 Sharp 15000 : 1 For 50/60/70 Tool Surface Luminance, LWH(AV/Component/HDMI) Cd/m2 white LWH(PC) Cd/m2 Copyright 2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 11 Only FHD 1600*1200 74.537 59.869 161.00 UXGA Only FHD 1920*1080 66.587 59.934 138.50 WUXGA (Reduced Blanking) Only FHD Copyright 2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 12 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. - 12 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...

  • Page 13: Adjustment Instruction

    DDC Data input. Adjustment of White Balance. Factoring Option Data input (2) Connect the download jig to D-sub jack Copyright 2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 14 Click "(1)Read" tab, and then load download 2. Automatically detecting update file in USB Stick file(XXXX.bin) by clicking "Read". Copyright 2008 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 15 - Input the PC 1024x768 @ 60Hz 1/2 Black & White Pattern(MSPG-925F model:60, pattern:54) into RGB - Adjust by commanding AUTO_COLOR_ADJUST(0xF1) 0x00 0x02 instruction. Copyright 2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 16 - Enter the white balance adjustment mode with aging command(F3, 00, FF) * Luminance min value is 200cd/ß≥ in the cool mode( For LCD) Copyright 2008 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...

  • Page 17: Trouble Shooting

    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. - 17 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 18 Is the Link cable Panel line cable normal? (HD:P403, FHD:402) CN700(PDP/LCD) Is the IC801’s Replace the VSC. output normal? Copyright 2008 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 19 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. - 19 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 20 9. Unusual display from RGB mode. Is Video input of the Comp2 jack normal? Check the input source. (Check R8035,8037,8039) Change IC801 Copyright 2008 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 21 Check the Tuner In/Out. Only External speaker is no sound Replace IC 601 operate IC601 normal? Normal Replace Main B/D Copyright 2008 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...

  • Page 22: Block Diagram

    BLOCK DIAGRAM Copyright 2008 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...

  • Page 23: Exploded View

    精品图纸网 http://www.79wl.com EXPLODED VIEW Copyright 2008 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes 精品图纸网 http://www.79wl.com...
  • Page 24 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 精品图纸网 http://www.79wl.com...
  • Page 25 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 精品图纸网 http://www.79wl.com...
  • Page 26 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 精品图纸网 http://www.79wl.com...
  • Page 27 精品图纸网 http://www.79wl.com Mar., 2008 P/NO : MFL41394411 Printed in Korea 精品图纸网 http://www.79wl.com...

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37lg30a37lg30ra-ta

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