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LG 26LK310 Service Manual
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LG 26LK310 Service Manual

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See also: Owner's Manual
LCD TV

SERVICE MANUAL

CHASSIS : LP91J
MODEL : 26LK310/310Y
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62461531 (1104-REV01)
North/Latin America
Europe/Africa
Asia/Oceania
26LK311
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
26LK310/310Y-TA
26LK311-TB
Printed in Korea

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Summary of Contents for LG 26LK310

  • Page 1: Service Manual

    North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LP91J MODEL : 26LK310/310Y 26LK310/310Y-TA MODEL : 26LK311 26LK311-TB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62461531 (1104-REV01) Printed in Korea...

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................17 EXPLODED VIEW .................. 18 SCHEMATIC CIRCUIT DIAGRAM .............. Copyright © 2011 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 © 2011 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 © 2011 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 © 2011 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    L/R Input (22LK310/311: AV Audio Input 1EA) 10. RS-232C Remote control, Commercial control Rear 11. USB Input (1EA) Divx, MP3, JPEG Only Side Copyright © 2011 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 48.363 60.004 VESA( XGA) 1280* 768 47.776 59.87 79.5 VESA( WXGA) 1360* 768 47.72 59.799 84.75 VESA( WXGA) Copyright © 2011 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 148.5 HDTV 1080P 1920 x 1080 24.00 74.25 HDTV 1080P 1920 x 1080 33.75 30.00 74.25 HDTV 1080P Copyright © 2011 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Adjustment Instruction

    1) Connect the download jig to D-sub(RGB) jack Click “(1)Read” tab, and then load download file (XXXX.bin) by clicking “Read”. Filexxx.bin Filexxx.bin Copyright © 2011 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 (2) Equipment : adjustment remote control. Copyright © 2011 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 ENTER( 6) ADC adjustment is executed automatically . 7) When ADC adjustment is finished, this OSD appear. Copyright © 2011 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 - Enter the white balance adjustment mode with aging command(F3, 00, FF) * Luminance min value is 150cd in the Cool/Medium/Warm mode(For LCD) Copyright © 2011 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 0.295 ± 0.002 0.305 ± 0.002 8,000 K 0.000 Warm 0.313 ± 0.002 0.329 ± 0.002 6,500 K 0.003 Copyright © 2011 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 14: Troubleshooting

    Or Inverter Or Inverter Pass Check Output of IC802 Change IC802 Fail Pass Check LVDS Cable Change Module Fail Copyright © 2009 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 Change the defect part Fail of IC800 Repeat [A], & [B] Process Pass Repeat [A], & [B] Process Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 Change the defect part Of IC600 Pass Change Speaker Check The Speaker Fail Pass Check The Speaker Wire Copyright © 2009 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: Block Diagram

    BLOCK DIAGRAM Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...

  • Page 18: 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. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 EAX64045802 LP91J COMPONENT / AV IN / AV AUDIO OUT NON_AUDIO_OUT AUDIO_OUT JK101 JK102 PPJ238-01 PPJ239-03 [RD1]E-LUG [RD1]E-LUG [RD1]O-SPRING [RD1]O-SPRING_2 R116 CVBS_RIN D105 R112 R120 220K [RD1]CONTACT [RD1]CONTACT_2 [WH1]O-SPRING [WH1]O-SPRING_2 R115 CVBS_LIN D104 R111 R119 220K [YL1]CONTACT [YL1]CONTACT_1 P_12V_SMALL_15V [YL1]O-SPRING [YL1]O-SPRING_1 GAIN X 4 CVBS_VIN...
  • Page 20 EAX64045802 LP91J RS-232C JK202 JK200 SPG09-DB-009 SPG09-DB-010 6630TGA004Q +3.5V_MST RED_GND GND_2 IC200 C203 ST3232CDR 0.1uF PC_R R202 R211 D207 GREEN_GND D200 C200 DDC_DATA DSUB_SDA 0.1uF D204 T1OUT GREEN PC_G R212 D208 BLUE_GND R1IN R203 R207 C201 H_SYNC PC_HS 0.1uF D201 R1OUT C213 ZD200...
  • Page 21 EAX64045802 OPTION LP91J HDMI2_EEPROM_RENESAS IC301-*1 SW_HPD : USE SW HPD (Default) R1EX24002ASAS0A HDMI1_EEPROM_RENESAS MST_HPD : USE MST HPD IC300-*1 R1EX24002ASAS0A +5V_MULTI +5V_MULTI +5V_HDMI_2 +5V_HDMI_1 +5V_HDMI_2 2SC3875S Q301 D301 +5V_HDMI_1 RT1C3904-T112 R303 KDS184S HDMI2_EEPROM_CATAL D300 IC301 R302 R301 CAT24C02WI-GT3 KDS184S HPD_MST_2 HDMI1_EEPROM_CATAL HPD_MST_1 Q300...
  • Page 22 EAX64045802 LP91J PANEL WAFER TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4- TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE- TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,T +5V_+12V_LCD 51P_FFC_WAFER_FHD P401 P403 +5V_+12V_LCD P402 TF05-51S SMALL_NC5 FF10001-30 FF10001-30 SMALL_NC1 26_32INCH_HD_WAFER SMALL_NC2 SMALL_OPC_OUT HD_normal R425 0 19_22INCH HD_NOT AUO_IPS R414 NON_Small CMO R432 TXCE3- TXCE3+ R435 SMALL_NC5 NON CMO 42FHD R436 TXCLKE- SMALL_NC1 NON CMO 42FHD TXCE0+...
  • Page 23 EAX64045802 LP91J PAL_TUNER TU500 TAFJ-Z001D NC_1 NC_2 Near the pin +5V_TUNER +B[5V] READY READY R500 C508 C501 C505 C506 0.01uF 10uF 100uF 100uF RF_AGC TU500-*1 READY MOPLL_AS TAFJ-H001F L500 120-ohm R504 M_SCL NC_1 C502 27pF NC_2 R505 M_SDA C500 27pF +B[5V] NC_3 +5V_TUNER...
  • Page 24 EAX64045802 LP91J +1.8V L606 +16V_NTP 120-ohm MLB-201209-0120P-N2 +1.8V_AVDD 0LCML00003B C612 C640 C642 C615 C617 R604 68uF 68uF 10uF 0.1uF 0.1uF P600 L605 SMAW250-H04R 120-ohm C613 +1.8V_DVDD 0.01uF L608 MLB-201209-0120P-N2 MLB-201209-0120P-N2 0LCML00003B SPK_L+ SPK_R- C672 R608 R611 0.01uF C637 R663 L603 SPK_R+ 0.1uF 4.7K...
  • Page 25 +3.3V_MULTI_MST +3.3V_MULTI_MST 4.7K R8010 4.7K R8011 R896 4.7K R898 4.7K EAX64045802 Small_HD Non_Small_FHD Small_HD Small_FHD R898-*1 4.7K R8011-*1 R896-*1 4.7K R8010-*1 4.7K 4.7K DDR2_A[0-12] Non_Small_HD 100Hz LP91J Apollo 100Hz R896-*2 4.7K R898-*2 4.7K R8010-*2 R8011-*2 4.7K Close to IC as close as possible 4.7K Small_FHD Apollo...
  • Page 26 EAX64045802 LP91J DDR2 DDR2_D[0-15] DDR2_D[0-15] +1.8V_DDR V_REF C904 C905 C918 C920 0.01uF 1000pF 0.1uF 2.2uF V_REF IC900 Close to DDR2 IC K4T51163QI-HCF7 DDR2_A[0-12] DDR2_D[0] VREF DDR2_D[1] DDR2_D[2] DDR2_A[0] DDR2_D[3] DDR2_A[1] DDR2_D[4] DDR2_A[2] DDR2_D[5] DDR2_A[3] DDR2_D[6] DDR2_A[4] DDR2_D[7] DDR2_A[5] DDR2_D[8] DDR2_A[6] DDR2_D[9] DDR2_A[7] DDR2_D[10]...
  • Page 27 **5V_MULTI->3.3V->1.2V EAX64045802 L1003 P_24V_SMALL_15V +16V_NTP LP91J C1043 C1046 C1058 68uF 0.01uF 0.1uF 19_22INCH L1004 +3.5V_MST R1010 P_3.5V +3.5V_MST IC1001 26_32INCH C1045 C1057 C1011 BD9130EFJ-E2 120-ohm 2SC3875S 10uF 0.01uF 0.01uF Q1005 R1044 26_32INCH 26_32INCH R1000 P1000 26_32INCH AUDIO_OUT PVCC 4.7K R1001 FW20020-24S AUDIO_OUT +3.5V_MULTI...

This manual is also suitable for:

26lk310y26lk310y-ta26lk31126lk311-tb26lk310-ta

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