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LG 47LB9DF Service Manual
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LG 47LB9DF Service Manual

LG 47LB9DF Service Manual

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LCD TV

SERVICE MANUAL

CHASSIS : LB75A
MODEL : 47LB9DF
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Internal Use Only
website:http://biz.LGservice.com
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Summary of Contents for LG 47LB9DF

  • Page 1: Service Manual

    Internal Use Only website:http://biz.LGservice.com LCD TV SERVICE MANUAL CHASSIS : LB75A MODEL : 47LB9DF 47LB9DF-AD CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2 TROUBLE SHOOTING & BLOCK DIAGRAM ........19 EXPLODED VIEW .................. 43 REPLACEMENT PARTS LIST ............... 47 SVC. SHEET ....................Copyright © 2007 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 © 2007 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    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 © 2007 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 © 2007 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 2) Humidity : ~ 80 % Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity : ~ 85 % Copyright © 2007 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 85% Full white pattern Color Distortion, DG 10.0 Color Distortion, DP 10.0 Color S/N, AM/FM 43.0 Color Killer Sensitivity Copyright © 2007 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 Contrast ratio = Lw / Lb * If it does not use Prior measurement, use generally simple test measurement. The Correct measure specification is followed by IEC61988-2/CD, JAPAN EIAJ-2710 Copyright © 2007 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only...
  • Page 9 108.000 VESA(SXGA) 1280*1024 79.976 75.025 135.000 VESA(SXGA) 1600*1200 75.000 60.000 162.000 VESA(UXGA) 1920*1080 67.500 60.000 148.500 HDTV 1080P Copyright © 2007 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 1920*1080 33.716/33.750 29.97/30.00 74.1762/74.25 HDTV 1080P 1920*1080 56.25 50.00 148.50 HDTV 1080P 1920*1080 67.43/67.50 59.94/60.00 148.50 HDTV 1080P Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 Display Operating Mode Transmissive Mode, Normally Black Surface Treatment Hard Coating (3H), Anti-glare treatment of the front polarizer Copyright © 2007 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 Unit Remark Product Widt(W) Length(D) Height(H) Dimension Before Packing With Stant After Packing Product Only SET With BOX Copyright © 2007 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Adjustment Instruction

    - Adjust MST3361-Set LCD TV SET - Adjust Video-Set (or Digital Board) Device configuration diagram for HDMI EDID Data input Copyright © 2007 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 60 00 00 1E 01 1D 80 D0 72 1C 16 20 10 2C 25 80 4C 70 6C 42 00 00 9E 00 00 00 00 00 00 00 00 00 00 DD Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 -...
  • Page 15 480i, a message saying 'Not Valid Format' and when there is no input signal, a message saying 'Check Signal Status' will be displayed for 1 second. Copyright © 2007 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only...

  • Page 16: White Balance Adjustment

    A N A L Y Z E R T Y PE ; C A -100+ R S-232C => Connection diagram for HDMI input Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 'AV-PAL Configuration Success'. If the adjustment fails, you will see a message saying 'AV-PAL Configuration Fail' Copyright © 2007 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 'AV-NTSC Configuration Success'. If the adjustment fails, you will see a message saying 'AV- NTSC Configuration Fail' Copyright © 2007 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 Copyright © 2007 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
  • Page 20 Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 Copyright © 2007 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
  • Page 22 Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes...
  • Page 23 Copyright © 2007 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
  • Page 24 Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
  • Page 25 Copyright © 2007 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...
  • Page 26 Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only Only for training and service purposes...
  • Page 27 Copyright © 2007 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
  • Page 28 Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes...
  • Page 29 Copyright © 2007 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...
  • Page 30 Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - LGE Internal Use Only Only for training and service purposes...
  • Page 31 Copyright © 2007 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...
  • Page 32 Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - LGE Internal Use Only Only for training and service purposes...
  • Page 33 Copyright © 2007 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...
  • Page 34 Copyright © 2007 LG Electronics. Inc. All right reserved. - 34 - LGE Internal Use Only Only for training and service purposes...
  • Page 35 Copyright © 2007 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...
  • Page 36 Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - LGE Internal Use Only Only for training and service purposes...
  • Page 37 Copyright © 2007 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...
  • Page 38 Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - LGE Internal Use Only Only for training and service purposes...
  • Page 39 Copyright © 2007 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only Only for training and service purposes...
  • Page 40 Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - LGE Internal Use Only Only for training and service purposes...
  • Page 41 Copyright © 2007 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only Only for training and service purposes...
  • Page 42 Copyright © 2007 LG Electronics. Inc. All right reserved. - 42 - LGE Internal Use Only Only for training and service purposes...
  • Page 43 Copyright © 2007 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...
  • Page 44 Copyright © 2007 LG Electronics. Inc. All right reserved. - 44 - LGE Internal Use Only Only for training and service purposes...

  • Page 45: Exploded View

    EXPLODED VIEW - 45 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 46: Exploded View Parts List

    Speaker,Tweeter, EN10D-6714 ND 10W 8OHM 82DB 0HZ 68 X 23 X 22.7 LUG KOREA TOPTONE EAJ35565901 LCD,Module-TFT, LC470WU1-SLB2 FULLHD 47INCH 1920X1080 550CD COLOR 72% 16/9 800:1(basic) DCR(1600:1) A-TW Pol. 12000K P7 LG PHILIPS LCD ABJ33147802 Cabinet Assembly, 47LB9DF-AD - 47" .

  • Page 47: Replacement Parts List

    "Capacitor,AL,Chip" MVK4.0TP16VC10M 10uF 2 C9033 0CE107WF6DC "Capacitor,AL,Chip" MVK6.3TP16VC100M 100uF C466 0CE476WF6DC "Capacitor,AL,Chip" MVK6.3TP16VC47M 47uF 2 C9035 0CE107WF6DC "Capacitor,AL,Chip" MVK6.3TP16VC100M 100uF Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
  • Page 48 "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C2205 EAE33970001 "Capacitor,Ceramic,Chip" CS1005X5R105K6R3NR 1uF C215 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C2206 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 48 - Only for training and service purposes...
  • Page 49 "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C329 0CK105EJ56A "Capacitor,Ceramic,Chip" GMK316BJ105KL-T 1uF 10 C246 EAE33970001 "Capacitor,Ceramic,Chip" CS1005X5R105K6R3NR 1uF C330 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
  • Page 50 C5008 0CK103CK56A "Capacitor,Ceramic,Chip" 0603B103K500CT 10nF 10 C409 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C5009 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 50 - Only for training and service purposes...
  • Page 51 "Capacitor,Ceramic,Chip" C1608X7R1A105KT 1uF 10 C707 0CK471BK56A "Capacitor,Ceramic,Chip" C1005X7R1H471KT 470pF C566 0CK223CK56A "Capacitor,Ceramic,Chip" UMK107JB223KA-T 22nF 1 C710 0CK104CK56A "Capacitor,Ceramic,Chip" 0603B104K500CT 100nF 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
  • Page 52 IC405 0IMMRAL014D "IC,EEPROM" AT24C02BN-SH-T 2KBIT 2 C9036 0CK106EF56A "Capacitor,Ceramic,Chip" C3216X7R1C106KT 10uF 1 IC406 0IMMRAL014D "IC,EEPROM" AT24C02BN-SH-T 2KBIT 2 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 52 - Only for training and service purposes...
  • Page 53 L400 6200J00005N "Filter,Bead" HH-1M2012-121JT(H:1mm) L751 EAM37276902 "Filter,LCR" LCF20P101-TM LPF(EMI) L401 6200J00005N "Filter,Bead" HH-1M2012-121JT(H:1mm) L752 EAM37276902 "Filter,LCR" LCF20P101-TM LPF(EMI) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
  • Page 54 "Resistor,Chip" MCR10EZHJ273 27KOHM 5% Q409 0TR104009AF "TR,Bipolar" KRC104S NPN 40V 0V 50V R1013 0RJ0000C678 "Resistor,Chip" MCR01MZPJ000 0OHM 5% 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 54 - Only for training and service purposes...
  • Page 55 R248 0RJ0182C478 "Resistor,Chip" MCR01MZPF180 18OHM 1% R154 0RJ0222C678 "Resistor,Chip" MCR01MZPJ220 22OHM 5% R249 0RJ4701C678 "Resistor,Chip" MCR01MZPJ472 4.7KOHM 5 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
  • Page 56 R4020 0RJ5101C678 "Resistor,Chip" MCR01MZPJ512 5.1KOHM 5 R328 0RJ1000C678 "Resistor,Chip" MCR01MZPJ101 100OHM 5% R4021 0RJ1002C678 "Resistor,Chip" MCR01MZPJ103 10KOHM 5% Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 56 - Only for training and service purposes...
  • Page 57 0RJ1800C678 "Resistor,Chip" MCR01MZPJ181 180OHM 5% R4092 0RJ0000D677 "Resistor,Chip" MCR03EZPJ000 0OHM 5% 1 R424 0RJ9101D477 "Resistor,Chip" MCR03EZPF912 9.1KOHM 1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
  • Page 58 R581 0RJ0331D677 "Resistor,Chip" MCR03EZPJ3R3 3.3OHM 5% R5022 0RJ3302C678 "Resistor,Chip" MCR01MZPJ333 33KOHM 5% R582 0RJ0331D677 "Resistor,Chip" MCR03EZPJ3R3 3.3OHM 5% Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 58 - Only for training and service purposes...
  • Page 59 0RJ0511D677 "Resistor,Chip" MCR03EZPJ5R1 5.1OHM 5% R685 0RJ0000C678 "Resistor,Chip" MCR01MZPJ000 0OHM 5% 1 R786 0RJ1502C478 "Resistor,Chip" MCR01MZPF153 15KOHM 1% Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
  • Page 60 "Jack,Phone" PEJ024-01 1P 4P STRAIG 6631T20032V "Harness,Single" INVERTER 12P(2.0MM) PH JK400 6612J10031A "Jack,RCA" PPJ209-02 14.0MM 1RX5C 6631T20032W "Harness,Single" 12-12(1050MM) PHR-12P Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 60 - Only for training and service purposes...
  • Page 61 "Harness,Single" SMH250 35097/35098 600 6631900102A "Harness,Single" SMH250 SMP250 300mM 2. 6631900133A "Harness,Single" (JAE) FI-RE51 (JAE) FI P703 EAD36608901 "Harness,Single" SMH200-12P SMH200-12PL Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
  • Page 62 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. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 /FLASH_CS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 Aug., 2007 P/NO : MFL37923004 Printed in Korea...

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