LG 26LV2500 Service Manual
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LG 26LV2500 Service Manual

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LED LCD TV
SERVICE MANUAL
CHASSIS : LB01S
MODEL : 26LV2500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67002103 (1103-REV00)
Internal Use Only
http://biz.lgservice.com
26LV2500-CC
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Summary of Contents for LG 26LV2500

  • Page 1 Internal Use Only http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LB01S MODEL : 26LV2500 26LV2500-CC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67002103 (1103-REV00)

  • Page 2: Table Of Contents

    PRODUCT SAFETY ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 BLOCK DIAGRAM..................14 EXPLODED VIEW ................... 16 SCHEMATIC CIRCUIT DIAGRAM ............- 2 - Copyright © 2011 LG Electronics. Inc. All rights reserved. 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 rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
  • Page 4 Copyright © 2011 LG Electronics. Inc. All rights 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 © 2011 LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    SDPIF out (1EA) SPDIF out Rear 10. Earphone out (1EA) Side Side l11 USB (1EA) Divx(HD), EMF(JPEG, MP3), SVC(download) - 6 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 63.595 60.0 108.875 SXGA FHD model 1280*720 74.25 720P DTV standard 1920*1080 66.587 59.93 138.5 WUXGA FHD model Copyright © 2011 LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 59.8 84.75 WXGA HDCP 1280*1024 63.981 60.02 108.875 SXGA HDCP/FHD model 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model Copyright © 2011 LG Electronics. Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Adjustment Instruction

    “Read” 4) Click “Connect” tab. If “Can’t” is displayed, check connection between computer, jig, and set. - 9 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 Module Tool option1 Tool option2 Tool option3(AU,TS) Tool option4 Tool option5 10020 8726 55337 26904 4) Completed selecting Tool option. Copyright © 2011 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 ▪ W/B Adj. must begin as start command “wb 00 00” , and finish as end command “wb 00 ff”, and Adj. offset if need . - 11 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Model option (The use of a internal pattern) Medium 0.285(±0.002) 0.293(±0.002) 9300K 0.0000 Warm 0.313(±0.002) 0.329(±0.002) 6500K 0.0000 download - 12 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 Confirm whether is normal or not when between power board's ac block and GND is impacted on 1.5kV(dc) or 2.2kV(dc) for one second. - 13 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Block Diagram

    BLOCK DIAGRAM Copyright © 2011 LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 - 15 - Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All rights reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 IC102 NAND01GW3B2CN6E S7M-PLUS_DivX_MS10 NAND FLASH MEMORY +3.3V_Normal +3.3V_Normal LGE107DC-RP [S7M+ DIVX/MS10] NC_1 NC_29 /PF_CE0 NAND_FLASH_1G_NUMONYX NC_2 NC_28 IC101 EAN60762401 H : Serial Flash L : NAND Flash PCM_A[0-7] PCM_D[0-7] NC_3 NC_27 /PF_CE1 H : 16 bit NC_4 NC_26 8 bit AR101...
  • Page 18 RSDS Power OPT +3.3V_Normal +1.26V_VDDC +1.26V_VDDC VDDC 1.26V MODEL OPTION VDD_RSDS:88mA VDDC : 2026mA MODEL OPTION VDD_RSDS PIN NAME PIN NO. HIGH OPT_0 OPT_4 L213 +2.5V_Normal BLM18PG121SN1D NO_FRC : LOW MODEL_OPT_0 FRC_HW_OPT NO FRC U3_INTERNAL : HIGH LOW U5_EXTERNALBOOT :HIGH HIGH L214 MODEL_OPT_4 50/60Hz LVDS...
  • Page 19 EAN61829001 EAN61857101 EAN61857201 IC301-*3 IC301-*2 K4B1G1646G-BCH9 IC301-*4 H5TQ1G63DFR-PBC NT5CB64M16DP-CF FRC_DDR_1600_HYNIX FRC_DDR_1333_SS_NEW FRC_DDR_1333_NANYA_NEW VREFCA VREFCA VREFCA VREFDQ VREFDQ VREFDQ VCC1.5V_U3_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC1.5V_U3_DDR VDD_1 VDD_1 +1.5V_FRC_DDR A10/AP VDD_2 VDD_1 A10/AP VDD_2 VDD_3 A10/AP VDD_2 VDD_3 A12/BC...
  • Page 20 CRYSTAL_KDS X1002-*1 32.768KHz +3.5V_ST NEW_SUB R4034 4.7K X1002 32.768KHz NEW_SUB R4035 4.7K CRYSTAL_EPSON R1034 4.7M CRYSTAL_KDS +3.5V_ST R1091 10K for Debugger MICOM_DEBUG_WAFER TP1601 P1001 +3.5V_ST 12505WS-12A00 C1010 0.1uF TOP SIDE for reset. TP1602 MICOM_RESET MICOM_DEBUG +3.5V_ST R1076 NEC_ISP_Tx MICOM_DEBUG R1078 NEC_ISP_Rx R1047 MICOM_DEBUG...
  • Page 21 USB_DIODES EAN61849601 IC1450 L1451-*1 AP2191DSG CIS21J121 +5V_USB L1451 MLB-201209-0120P-N2 $0.077 OUT_2 IN_1 120-ohm C1452 OUT_1 IN_2 C1453 R1458 R1459 10uF C1451 0.1uF 1/8W 1/8W 22uF +3.3V_Normal R1455 4.7K USB1_CTL R1454 R1451 47 USB1_OCD SIDE_USB_DM SIDE_USB_DP D1451 D1452 CDS3C05HDMI1 CDS3C05HDMI1 5.6V 5.6V SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 22 HDMI EEPROM 5V_HDMI_1 +5V_Normal ENKMC2838-T112 D821 HDMI_1_RENESAS HDMI_1_ATMEL 5V_HDMI_1 5V_DET_HDMI_1 HDMI_1 IC801-*1 IC801 EDID_WP R1EX24002ASAS0A AT24C02BN-SH-T SHIELD Q802 R830 R896 HPD1 $0.055 2SC3052 C806 R884 R888 C802 0.1uF 2.7K 2.7K R804 0.1uF 1.8K DDC_SCL_1 R876 DDC_SDA_1 DDC_SDA_1 R875 DDC_SCL_1 5V_HDMI_2 +5V_Normal R824 HDMI_CEC...
  • Page 23 RGB/SPDIF/PC/HP New Item Development EARPHONE BLOCK HP_LOUT C1118 002:V7 10uF C1115 1000pF R1125 JK3301 Q1101 +3.3V_Normal MMBT3904-(F) KJA-PH-0-0177 MMBT3904-(F) Q1104 +3.5V_ST R1155 DETECT HP_ROUT HP_DET C1119 10uF 002:V7 C1116 1000pF Q1102 R1128 MMBT3904-(F) MMBT3904-(F) Q1103 R1129 3.3K SIDE_HP_MUTE Q1106 2SC3052 RGB PC +5V_Normal PC AUDIO...
  • Page 24 RS232C R1123 JP1121 R1124 +3.5V_ST JP1122 D1107 D1108 CDS3C30GTH CDS3C30GTH C1101 0.33uF SPG09-DB-009 IC1101 JK1101 C1106 MAX3232CDR 0.1uF C1102 0.1uF C1103 0.1uF DOUT1 RIN1 C1104 0.1uF ROUT1 S7_NEC_RXD DIN1 C1105 0.1uF DOUT2 DIN2 S7_NEC_TXD RIN2 ROUT2 EAN41348201 SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 25 VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory A-MVREFDQ A-MVREFCA B-MVREFDQ B-MVREFCA Close to DDR Power Pin Close to DDR Power Pin CLose to Saturn7M IC CLose to DDR3 CLose to Saturn7M IC...
  • Page 26 +3.3V_Normal +3.3V_Normal S_FLASH_MAIN_MACRONIX IC1401 MX25L8006EM2I-12G +3.3V_Normal C1401 /SPI_CS 0.1uF SO/SIO1 HOLD# SPI_SDO SCLK /FLASH_WP SPI_SCK R1405 SI/SIO0 SPI_SDI R1401 Q1401 KRC103S S_FLASH_MAIN_WINBOND IC1401-*1 W25Q80BVSSIG DO[IO1] HOLD[IO3] %WP[IO2] DI[IO0] SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS GP2R 20101023...
  • Page 27 +1.8V_AMP +3.3V_Normal IC404 AP1117E18G-13 ADJ/GND Vd=1.4V 120 mA C434 C421 C446 0.1uF 0.1uF 10uF +24V SPK_L+ D501 1N4148W R519 R526 100V L506 R527 C536 R535 10.0uH 0.1uF 4.7K C529 390pF NRS6045T100MMGK SPEAKER_L C534 0.47uF 10.0uH C547 C521 C515 C519 0.01uF 10uF 0.1uF 0.1uF...
  • Page 28 Rear AV AV_CVBS_IN COMPONENT2 +3.3V_Normal REAR_AV C1643 C1648 D1619 47pF 220pF R1654 R1612 R1615 +3.3V_Normal REAR_AV REAR_AV COMP2_DET ETHERNET FOR DVB_T2 D1613 R1660 5.6V JK1604 REAR_AV PPJ233-01 AV_CVBS_DET [RD]E-LUG R1666 REAR_AV D1624 C1646 5.6V [GN]E-LUG [RD]O-SPRING 0.1uF R1619 REAR_AV [GN]O-SPRING [RD]CONTACT L-MONO COMP2_Y+...
  • Page 29 SIDE CVBS PHONE JACK (New Item Development) SIDE_CVBS L9903 BLM18PG121SN1D JK9901 KJA-PH-1-0177 SIDEAV_CVBS_IN SIDE_CVBS M5_GND +3.3V_Normal SIDE_CVBS C9907 R9907 [YL]E-LUG D9901 100pF SIDE_CVBS ADUC30S03010L_AMODIODE SIDE_CVBS [YL]O-SPRING R9915 R9911 M3_DETECT SIDEAV_DET [YL]CONTACT C9901 100pF D9902 SIDE_CVBS [WH]O-SPRING 5.6V ADMC5M03200L_AMODIODE [RD]CONTACT SIDE_CVBS SIDE_CVBS L9902 SIDE_AV_GENDER...
  • Page 30 * Option name of this page : CI_SLOT (because of Hong Kong) CI Region CI SLOT +5V_CI_ON CI TS INPUT CI_DATA[0-7] AR1905 FE_TS_DATA[7] +5V_Normal CI_MDI[7] FE_TS_DATA[6] C1906 CI_MDI[6] FE_TS_DATA[5] 10uF CI_MDI[5] FE_TS_DATA[4] CI_MDI[4] EAG41860102 CI_SLOT_JACK_LV3400 AR1906 P1901 FE_TS_DATA[3] P1902 CI_MDI[3] /CI_CD1 FE_TS_DATA[2] 10067972-000LF...
  • Page 31 6.5T_GAS 12.5T_GAS 9.5T_GAS 7.5T_GAS 8.5T_GAS 5.5T_GAS MDS62110206 MDS62110205 MDS62110209 MDS61887708 MDS61887710 MDS62110204 GAS1 GAS1-*2 GAS1-*5 GAS1-*4 GAS1-*3 GAS1-*1 7.5T_GAS 9.5T_GAS 5.5T_GAS 6.5T_GAS 12.5T_GAS 8.5T_GAS MDS62110205 MDS62110204 MDS61887710 MDS62110209 MDS61887708 MDS62110206 GAS2-*2 GAS2-*1 GAS2-*3 GAS2-*5 GAS2-*4 GAS2 9.5T_GAS 7.5T_GAS 8.5T_GAS 12.5T_GAS 5.5T_GAS MDS62110209 MDS61887710...
  • Page 32 +12V/+15V +5V_Normal +24V/+15V +3.5V_ST PANEL_POWER R7561 24V-->3.48V 100K +24V_LED 5V_PANEL +24V/+15V 12V_PANEL 15V-->3.56V MLB-201209-0120P-N2 Adapter L7504 L7504-*1 ST_3.5V-->3.5V --> 3.375V NON_Adapter IC7509 P7500 CIS21J121 Adapter C7525 C7526 C7529 L7503 L7912 C7504 10uF 0.01uF 0.1uF NCP803SN293 SMAW200-12 MLB-201209-0120P-N2 MLB-201209-0120P-N2 0.015uF 0.015uF Q7506 +15V 4A ->...
  • Page 33 CONTROL IR & LED +3.5V_ST R2405 R2404 19-22_LAMP P7600 19-22_LAMP 12507WR-03L L7600 BLM18PG121SN1D L7601 BLM18PG121SN1D 19-22_LAMP C7600 C7601 0.1uF 0.1uF 19-22_LAMP 19-22_LAMP 19-22_LAMP 19-22_LAMP EYEQ/TOUCH_KEY R2411 EYEQ/TOUCH_KEY OLD_SUB NEW_SUB NEC_EEPROM_SCL P2401 P2402 12507WR-12L 12507WR-15L 5.6V C2408 18pF D2403 L2401 R2401 BLM18PG121SN1D KEY1 EYEQ/TOUCH_KEY...
  • Page 34 [51Pin LVDS Connector] (For FHD 60/120Hz) PANEL_VCC L702 120-ohm WAFER_FHD P703 [30Pin LVDS Connector] [30Pin LVDS Connector] 41PIN WAFER DELETE, HONGSU, 201011115 FI-RE51S-HF-J-R1500 (For HD 60Hz_Small) (For HD 60Hz_Normal) PANEL_VCC WAFER_FHD C700 C709 C710 SMALL_NC1 10uF 1000pF 0.1uF P7902 P7901 SMALL_NC2 FF10001-30 WAFER_FHD...
  • Page 35 GP2R_GLOBAL_TUNER_BLOCK for Small Model +5V_TU BOOSTER : CHINA OPT RF_SWITCH_CTL Pull-up can’t be applied L3701 BOOSTER_OPT because of MODEL_OPT_2 BLM18PG121SN1D BOOSTER_OPT BOOSTER_OPT R3734 R3743 close to TUNER Q3701 BOOSTER_OPT ISA1530AC1 R3737 R3762 2.2K CONTROL_ATTEN BOOSTER_OPT CN_2INPUT_H_LG3911 R3745 BOOSTER_OPT Q3702 FE_BOOSTER_CTL TU3701 2SC3052 LNA2_CTL...
  • Page 36 NON_L/DIM_LED/DRIVER NON_3D_SG L/DIM_MOSI M_REMOTE_RX M_REMOTE_TX L/DIM_SCLK LED_DRIVER_D/L_SCL M_RFModule_RESET LED_DRIVER_D/L_SDA DC_MREMOTE V_SYNC DD_MREMOTE 3D_GPIO_1 3D_GPIO_2 3D_SYNC_RF SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2R 20101023 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON_L/DIM THE CRITICAL COMPONENTS IN THE...

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26lv2500-cc