Download
Share
Print this page
  1. Manuals
  2. Brands
  3. LG Manuals
  4. LCD TV
  5. 55LK535C
  6. Service manual

LG 55LK535C Service Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
LED LCD TV
SERVICE MANUAL
CHASSIS : LC0AD
MODEL: 55LK535C
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67180810 (1206-REV00)
Internal Use Only
http://biz.lgservice.com

Advertisement

loading

Related Manuals for LG 55LK535C

Summary of Contents for LG 55LK535C

  • Page 1 Internal Use Only http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LC0AD MODEL: 55LK535C CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67180810 (1206-REV00)

  • Page 2: Table Of Contents

    CONTENTS ....................2 PRODUCT SAFETY ................. 3 SPECIFICATION..................6 ADJUSTMENT INSTRUCTION..............9 BLOCK DIAGRAM..................13 EXPLODED VIEW ..................15 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

    0.630 mm x 0.630 mm 55”LGD(FHD,100Hz) EEFL Back Light 55”LGD(FHD) Edge 3D EEFL 1.06 Billion, 16.7 Milion Display Colors 3H, AG Coating - 6 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 1200*1024 63.595 60.02 108.875 SXGA FHD model 1280*720 74.25 720p DTV Standard 1920*1080 66.587 59.93 138.5 WUXGA FHD model - 7 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 59.87 79.5 WXGA HDCP 1360*768 47.72 59.8 84.75 WXGA HDCP 1280*720 74.25 HDCP HDCP/FHD model 148.5 WUXGA 1920*1080 67.5 Copyright ©2011 LG Electronics. Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Adjustment Instruction

    3) Click “Read” tab, and then load download file(XXXX.bin) by clicking “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 Tool option4 Tool option5 55LK535C 46784 19478 24864 49161 14616 4) Completed selecting Tool option. - 10 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 • Check whether written EDID data is correct or not. * For Service main Assembly, EDID have to be downloaded to Insert Process in advance. - 11 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 • Enter “START” by pushing “OK” key. For Analog EDID For HDMI EDID D-sub to D-sub DVI-D to HDMI or HDMI to HDMI - 12 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Block Diagram

    BLOCK DIAGRAM - 13 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 - 14 - Copyright ©2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: 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. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 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 17 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 18 ST_3.5V--> 3.375V --> 3.46V +12V/+15V 20V-->3.51V --> 3.76V (3.59V) +3.5V_ST -> 3.375V +12V/+15V +3.5V_ST FROM LIPS & POWER B/D PANEL_POWER 24V-->3.78V --> 3.92V (3.79V) +3.5V_ST 12V -->3.58V --> 3.82V (3.68V) R488 18.5V-->3.5V --> 3.75V (3.59V) 100K IC408 R405-*1 R407-*1 NCP803SN293 0.01uF C442 C409...
  • Page 19 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 NEC_ISP_Tx MICOM_DEBUG NEC_ISP_Rx R1047 MICOM_DEBUG C1003 1/16W...
  • Page 20 CONTROL IR & LED +3.5V_ST EYEQ/TOUCH_KEY R2405 R2411 R2404 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 EYEQ/TOUCH_KEY R2402 L2402 D2402 NEC_EEPROM_SDA BLM18PG121SN1D 5.6V R2412 5.6V KEY2 C2409 D2404 AMOTECH 18pF C2401 C2402 0.1uF...
  • 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 USB_JACK USB1_CTL R1454 USB_JACK_LV3400 R1451 47 USB1_OCD JK1450-*1 JK1450 SIDE_USB_DM SIDE_USB_DP D1451 RCLAMP0502BA 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 HEAD_PHONE 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...
  • 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 [51Pin LVDS Connector] (For FHD 60/120Hz) PANEL_VCC [30Pin LVDS Connector] [41Pin LVDS Connector] (For HD 60Hz_Normal) L702 (For FHD 120Hz) 120-ohm WAFER_FHD P705 P703 P704 FF10001-30 FI-RE51S-HF-J-R1500 FI-RE41S-HF-J-R1500 WAFER_FHD WAFER_FHD_120HZ C700 C709 C710 10uF 1000pF 0.1uF WAFER_FHD R713 PWM_DIM TP721 RXD4- TP722 OPC_OUT...
  • Page 26 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 27 +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 28 GP2R_LARGE_TUNER +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 TU3702 The pull-up/down of LNA2_CTL C3709...
  • Page 29 +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 30 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 31 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 32 * 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 33 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 34 +3.3V_Normal L/DIM_LED/DRIVER +3.3V_Normal P2100 12507WR-08L R2102 R2103 FRC_L/DIM_REVERSE_SEL L/DIM_SCLK LED_DRIVER_D/L L/DIM_MOSI R4029 LED_DRIVER_D/L_SCL R4028 LED_DRIVER_D/L_SDA LED_DRIVER_D/L V_SYNC C2100 C2101 C2102 C2103 C2104 18pF 18pF 18pF 18pF 18pF 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...
  • Page 35 TI solution RF-3D OPTION +3.3V_Normal +3.3V_Normal P3401 12507WR-12L L3401 3D_SG 120-ohm 3D_SG 3.3V R3410 R3411 R3412 3D_SG R3402 2.7K 2.7K 2.7K M_REMOTE_RX 3D_SG 3D_SG 3D_SG 3D_SG R3408 M_REMOTE_TX 3D_SG R3409 RESET M_RFModule_RESET 3D_SG FREQ. GPOIO_0 GPOIO_1 GPOIO_2 R3407 DC_MREMOTE 3D_SG 3D Off R3401 DD_MREMOTE...