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LG 42LE4500 Service Manual
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LG 42LE4500 Service Manual

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LCD TV
SERVICE MANUAL
CHASSIS : LC01D
MODEL : 42LE4500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62863009 (1008-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
42LE4500-CA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in China

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Summary of Contents for LG 42LE4500

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LC01D MODEL : 42LE4500 42LE4500-CA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62863009 (1008-REV00) Printed in China...

  • Page 2: Table Of Contents

    PRODUCT SAFETY ................. 3 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............8 BLCOK DIAGRAM..................14 EXPLODED VIEW .................. 17 SVC. SHEET ....................- 2 - Copyright © 2010 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 © 2010 LG Electronics. Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specification

    Humidity : 10 ~ 90 % Input Voltage AC 100-240 V~, 50 / 60Hz Module Size 42LGD(FHD) 973.2(H)×566.2(V)×10.8mm(B)/25.3(D) 42AUO(FHD) 973.2(H)×566.2(V)×22.4(D) - 4 - Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 1920x1080 33.72 59.94 HDTV 1080p 1920x1080 56.250 HDTV 1080p 67.43/67.5 59.94/60 1920x1080 HDTV 1080p - 5 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes 版权归LG电子所有 版权归LG电子所有 仅限LG电子内部使用 仅限LG电子内部使用 仅限培训和售后服务使用 仅限培训和售后服务使用...
  • Page 6 79.5 WXGA 1360*768 47.72 59.8 84.75 WXGA 1280*1024 63.595 60.0 108.875 DTV standard 1920*1080 66.587 59.93 138.625 WUXGA FHD model - 6 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 47.72 59.8 84.75 WXGA HDCP 1280*1024 63.595 60.0 108.875 SXGA HDCP FHD model 1920*1080 67.5 148.5 WUXGA HDCP FHD model - 7 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 8: Adjustment Instruction

    If “Error” is displayed, Check connection between computer, jig, and set. Please Check the Speed : To use speed between from 200KHz to 400KHz - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 6) PC Audio In * Display and Sound check is executed by remote control. (4) Correction Tool option is complete. - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 G-Gain B-Gain R-Cut G-Cut B-Cut Medium R-Gain G-Gain B-Gain R-Cut G-Cut B-Cut Warm R-Gain G-Gain B-Gain R-Cut G-Cut Copyright © 2010 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 - In case of LCD, Back-light on should be checked 10-19 using no signal or Full-white pattern. 20-35 36-49 50-79 Over 80 Copyright © 2010 LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 Carry the command. EDID data and 00 10 Automatically Download Model option (The use of a internal pattern) Downloa d - 12 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 B8 2D HDMI3 65 03 0C 00 30 00 B8 2D HDMI4 65 03 0C 00 40 00 B8 2D - 13 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Blcok Diagram

    BLCOK DIAGRAM 16:/FRC_DQL/U[0-7] 16:/FRC_DQL/U[0-7] 16:/DDR3_DQL/U[0-7] 16:/DDR3_DQL/U[0-7] :/FRC_BA0… :/FRC_BA0… 17:/DDR3_BA0… 17:/DDR3_BA0… :/DDR3_A[0-12] :/DDR3_A[0-12] :/FRC_A[0-12] :/FRC_A[0-12] 4 :/ FRC_SPI_CK/DI/CZ/DO 4 :/ FRC_SPI_CK/DI/CZ/DO - 14- Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 - 1 5 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 BCM_TXD /RXD - 16- Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 17 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 IC102 HY27UF082G2B-TPCB NAND FLASH MEMORY +3.3V_Normal +3.3V_Normal NC_1 NC_29 LGE107D (S7M Divx_Non RM) 2GBIT /PF_CE0 NC_2 NC_28 H : Serial Flash <T3 CHIP Config(AUD_LRCH)> IC101 L : NAND Flash PCM_A[0-7] NC_3 NC_27 /PF_CE1 Boot from SPI flash : 1’b0 PCM_D[0-7] H : 16 bit Boot from NOR flash : 1’b1 NC_4...
  • Page 19 NO_FRC : LOW +2.5V_Normal BLM18PG121SN1D MODEL_OPT_0 NO FRC U3_INTERNAL : HIGH LOW U3_EXTERNAL : HIGH HIGH L214 MODEL_OPT_4 PWIZ TCON with LG FRC : HIGH HIGH 100/120Hz LVDS 50/60Hz LVDS VDD33 BLM18PG121SN1D MODEL_OPT_1 MINI LVDS LVDS C4005 R201 IF_AGC_SEL MODEL_OPT_0 0.1uF...
  • Page 20 IC301-*1 H5TQ1G63BFR-H9C VCC1.5V_U3_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC1.5V_U3_DDR FRC_DDR_1333 +1.5V_FRC_DDR VREFCA L301 VREFDQ C324 C325 10uF 0.1uF Close to DDR Power Pin VDD_1 A10/AP VDD_2 VDD_3 A12/BC VDD_4 VDD_5 VCC1.5V_U3_DDR VCC1.5V_U3_DDR VDD_6 VDD_7 VDD_8 VDD_9 S7M_DIVX C-MVREFDQ...
  • Page 21 ST_3.5V--> 3.375V +12V/+15V 20V-->3.51V +24V +12V/+15V +3.5V_ST +3.5V_ST -> 3.375V FROM LIPS & POWER B/D PANEL_POWER 24V-->3.64V +3.5V_ST 12V-->3.58V R488 18.5V-->3.5V 100K IC408 NCP803SN293 C442 C438 C436 10uF R402 0.1uF New item POWER_DET 0.01uF RESET Q409 +3.5V_ST RT1P141C-T112 AO3407A Q402 C474 PANEL_VCC 0.1uF...
  • Page 22 X1002 32.768KHz R1034 4.7M R1091 10K +3.5V_ST for Debugger SW1001 JTP-1127WEM MICOM_DEBUG +3.5V_ST P1001 C1003 12505WS-12A00 0.1uF C1010 0.1uF MICOM_RESET NEC_ISP_Tx NEC_ISP_Rx R1047 1/16W OCD1A EDID_WP OCD1B Q1001 2SC3052 FLMD0 R1002 10K P60/SCL0 P140/PCL/INTP6 R1018 R1048 NEC_SCL RL_ON P61/SDA0 P00/TI000 R1049 R1019 NEC_SDA...
  • Page 23 CONTROL IR & LED +3.5V_ST EYEQ/TOUCH_KEY R2411 NEC_EEPROM_SCL P2401 R2405 12507WR-12L R2404 5.6B C2408 1000pF D2403 L2401 R2401 BLM18PG121SN1D KEY1 EYEQ/TOUCH_KEY L2402 R2402 D2402 NEC_EEPROM_SDA BLM18PG121SN1D 5.6V R2412 5.6B KEY2 C2409 AMOTECH D2404 1000pF C2401 C2402 0.1uF 0.1uF D2401 5.6V AMOTECH JP2407 +3.5V_ST...
  • Page 24 [LEVEL Shift Block] [POWER Block] D607 MMSD4148T1G VDD_LCM (+16V) 100V VCC_LCM CHECK Value!! (+3.3V) TCON_42_FHD_60_LAMP R635 R640 C628 C635 910K 470K C642 C653 R625 TCON_42_FHD_60_LAMP 0.1uF R650 22uF 9.1K C636 TCON_42_FHD_60_LAMP C638 1/8W R642-*1 C640 C629 R636 R641 47uF 1uF 50V C600 R600 NON_GIP...
  • Page 25 HDMI EEPROM 5V_HDMI_1 +5V_Normal ENKMC2838-T112 D821 HDMI_3 HDMI_1 5V_HDMI_1 5V_DET_HDMI_1 HDMI_1 IC801 EDID_WP 5V_HDMI_3 5V_DET_HDMI_3 AT24C02BN-10SU-1.8 SHIELD SHIELD R864 R830 Q804 Q802 HPD3 R896 HPD1 R894 2SC3052 2SC3052 $0.055 C806 R884 R888 $0.253 $0.253 C804 C802 0.1uF 4.7K 4.7K R804 0.1uF R838 0.1uF...
  • Page 26 COMMON AREA New Item Development EARPHONE BLOCK HP_LOUT EXCEPT_CHINA_HOTEL_OPT C1118 2:X19 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 EXCEPT_CHINA_HOTEL_OPT C1119 10uF 2:X19 C1116 1000pF Q1102 R1128 MMBT3904-(F) MMBT3904-(F) SPK_R+_HOTEL Q1103 R1129 3.3K 2:X19 SIDE_HP_MUTE...
  • Page 27 RS232C IR_OUT R1122 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 +3.5V_ST C1103 0.1uF DOUT1 R1109 R1114 RIN1 4.7K 4.7K C1104 0.1uF ROUT1 R1157 0 S7_RXD1 R1156 0 DIN1 NEC_RXD C1105 0.1uF...
  • Page 28 WIRELESS READY MODEL JK2601 KJA-PH-3-0168 Wireless power From wireless_I2C to micom I2C VCC[24V/20V/17V]_1 VCC[24V/20V/17V]_2 +3.3V_Normal R2602 VCC[24V/20V/17V]_3 WIRELESS_PWR_EN VCC[24V/20V/17V]_4 VCC[24V/20V/17V]_5 +24V VCC[24V/20V/17V]_6 +3.3V_Normal DETECT C2601 R2604 C2602 INTERRUPT 0.1uF TP2601 2.2uF GND_1 R2612 RESET TP2602 R2605 Q2602 R2617 GND_2 WIRELESS WIRELESS_DETECT AO3407A R2607...
  • 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 C9907 SIDE_CVBS R9907 D9901 100pF SIDE_CVBS SIDE_CVBS R9915 R9911 M3_DETECT SIDEAV_DET C9901 SIDE_CVBS 100pF D9902 SIDE_CVBS 5.6V SIDE_CVBS SIDE_CVBS L9902 SIDE_CVBS BLM18PG121SN1D R9914 SIDEAV_L_IN SIDE_CVBS SIDE_CVBS SIDE_CVBS...
  • Page 30 USB_DIODES IC1450 AP2191SG-13 +5V_USB L1451 MLB-201209-0120P-N2 $0.077 OUT_2 IN_1 120-ohm C1452 OUT_1 IN_2 C1453 10uF 0.1uF C1451 22uF +3.3V_Normal NON_EU R1455 C1451-*1 4.7K 22uF R1456 0 USB1_CTL R1454 R1451 47 USB1_OCD R1453 SIDE_USB_DM R1452 0 SIDE_USB_DP D1451 D1452 CDS3C05HDMI1 CDS3C05HDMI1 5.6V 5.6V /RST_HUB...
  • Page 31 42_FHD_60_LAMP 42_FHD 32_FHD 37_FHD (Without 60Hz Lamp) R620-*1 R621-*1 R637-*1 R620-*2 R621-*2 R620-*3 R621-*3 R637-*3 R637-*2 SHEET7 220K 220K SHEET7 220K TCON_32_FHD TCON_32_FHD TCON_32_FHD TCON_37_FHD TCON_37_FHD TCON_37_FHD TCON_42_FHD TCON_42_FHD TCON_42_FHD R622-*2 R622-*1 R643-*1 R643-*2 R622-*3 R643-*3 270K 150K 150K TCON_32_FHD TCON_37_FHD TCON_42_FHD TCON_32_FHD...
  • Page 32 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 33 +3.3V_Normal +3.3V_Normal S_FLASH IC1401 MX25L8005M2I-15G +3.3V_Normal C1401 /SPI_CS 0.1uF HOLD# SPI_SDO R1402 SCLK /FLASH_WP SPI_SCK R1405 SPI_SDI R1401 Q1401 KRC103S SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS Ver.
  • Page 34 LGIT CAN NIM_H/N TUNER for EU & CHINA +5V_TU BOOSTER : CHINA OPT RF_SWITCH_CTL Pull-up can’t be applied L3701 CHINA_OPT because of MODEL_OPT_2 BLM18PG121SN1D CHINA_OPT R3734 R3743 close to TUNER Q3701 CHINA_OPT ISA1530AC1 R3737 R3762 2.2K CONTROL_ATTEN CHINA_OPT R3745 CHINA_OPT Q3702 FE_BOOSTER_CTL TU3701...
  • Page 35 [51Pin LVDS Connector] (For FHD 60/120Hz) PANEL_VCC [Right FFC Connector] (60Pin Mini-LVDS) [LEFT FFC Connector] [41Pin LVDS Connector] [30Pin LVDS Connector] (60Pin Mini-LVDS) L702 (For FHD 120Hz) (For HD 60Hz_Normal) 120-ohm WAFER_FHD P701 P702 P703 P704 P705 104060-6017 104060-6017 TF05-51S TF05-41S FF10001-30 MINI_LVDS...
  • Page 36 +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 C540 0.01uF 1N4148W R519 R526 L507 100V AD-9060 R527 C536 R535 R531 0.1uF 4.7K C529 390pF SPEAKER_L C534 0.47uF C547 C521 R532 C515 C519 0.01uF 10uF...
  • Page 37 Composite For EU & CHINA +3.3V_Normal Full Scart/ Comp1 AV_CVBS_IN R1659 R1613 C1643 C1648 D1619 R1654 47pF 220pF SC1/COMP1_DET +3.3V_Normal R1614 IN CASE OF SMALL= 15V D1611 C1607 5.6V 0.1uF +12V/+15V EU_OPT L1606 R1660 EU_OPT JK1604 R4210 PPJ233-01 EU_OPT SC1_SOG_IN EU_OPT AV_CVBS_DET EU_OPT E...
  • Page 38 NOT USING B/T BT_ON/OFF BT_DM BT_DP BT_LOUT SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M Ver. 1.0 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON B/T THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 39 * 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 AR1906 P1901 FE_TS_DATA[3] CI_MDI[3] /CI_CD1 FE_TS_DATA[2] 10067972-000LF CI_MDI[2] C1903...
  • Page 40 NON ETHERNET TP2101 EPHY_RXD0 TP2102 EPHY_RXD1 EPHY_TXD1 TP2103 EPHY_TXD0 TP2104 EPHY_REFCLK TP2105 TP2106 EPHY_CRS_DV EPHY_MDIO TP2107 TP2108 ET_RXER /RST_PHY TP2109 EPHY_MDC TP2110 EPHY_EN TP2111 SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M Ver. 1.0 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON ETHERNET...
  • Page 41 NON Motion Remocon Region TP2501 M_REMOTE_RX TP2502 M_REMOTE_TX RF_RESET TP2503 RF_ENABLE TP2504 SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M Ver. 1.0 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON M REMOCON THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 42 China HOTEL Option Chinese Hotel Option +24V P3401 12505WS-09A00 HOTEL_OPT R3404 0 HOTEL_OPT C3401 0.1uF HOTEL_OPT AUDIO_R +3.3V_Normal HOTEL_OPT R3403 0 AMP_RESET_N R3402 HOTEL_OPT AMP_MUTE_HOTEL Q3401 RT1C3904-T112 R3401 200 HOTEL_OPT AMP_MUTE_HOTEL HOTEL_OPT HOTEL_OPT R3406 0 SPK_R+_HOTEL HOTEL_OPT R3405 0 SPK_R-_HOTEL CLOSE TO THE EARPHONE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 43 /PIF_SPI_CS R6001 CHB_CVBS_IN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS GP2_Saturn7M Ver. 1.0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

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42le4500-ca