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LG 32LD460B Service Manual
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LG 32LD460B Service Manual

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LCD TV
SERVICE MANUAL
CHASSIS : LJ01Z
MODEL : 32LD460B
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67183304 (1108-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
32LD460B-SA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 32LD460B

  • 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 : LJ01Z MODEL : 32LD460B 32LD460B-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67183304 (1108-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS ....................2 PRODUCT SAFETY ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION............... 10 BLOCK DIAGRAM...................15 EXPLODED VIEW .................. 16 SVC. SHEET ....................Copyright 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 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
  • Page 4 Copyright LG Electronics. Inc. All right 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 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg Humidity : -85 % Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 3) The values specified are at approximate distance 50cm from the LCD surface 4) Ta= 25°C ± 2 °C, VDD, H_VDD, VGH, VGL=TPY, fV=60Hz, Clk=148.5MHz Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 80 kHz Pixel Clock - 170 MHz Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 80 kHz Pixel Clock - 170 MHz Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 10: 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. Copyright LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 4) RGB (PC : 1024 x 768 @ 60hz) 5) HDMI 6) PC Audio In * Display and Sound check is executed by Remote control. Copyright LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 **: Month : Controlled / Data:00 R Gain ***:Year : Controlled G Gain ****:Check sum B Gain R Cut G Cut B Cut Copyright LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 DVI-D to HDMI or HDMI to HDMI Item Condition Data(Hex) Manufacturer ID 1E6D Version Digital : 1 Revision Digital : 3 Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 Confirm whether is normal or not when between power board’s ac block and GND is impacted on 1.5 kV(dc) or 2.2 kV(dc) for one second. Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Block Diagram

    BLOCK DIAGRAM Copyright LG Electronics. Inc. All right reserved. - 15 - 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. - 16 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 IC102 HY27UF082G2B-TPCB NAND FLASH MEMORY +3.3V_Normal +3.3V_Normal LGE107D (S7M Divx_Non RM) NC_1 NC_29 2GBIT NC_2 NC_28 IC101 PCM_A[0-7] NC_3 NC_27 PCM_D[0-7] <T3 CH P Con g AUD_LRCH > NC_4 NC_26 S7M_DIVX & MS10 AR101 NC_5 I / O 7 5V_DET_HDMI_1 PCM_D0 GPIO143/TCON0 PCM_D1...
  • Page 18 : H I G H L O W U 3 _ E X T E R N A L : H I G H H I G H L214 MODEL_OPT_4 PWIZ TCON with LG FRC : HIGH HIGH 100/120Hz LVDS 50/60Hz LVDS VDD33 BLM18PG121SN1D...
  • Page 19 IC301-*1 IC301-*2 IC301-*3 H5TQ1G63BFR-H9C K4B1G1646E-HCH9000 NT5CB64M16AP-CG FRC_DDR_1333_HYNIX FRC_DDR_1333_SS FRC_DDR_1333_NY VREFCA VREFCA VREFCA VCC1.5V_U3_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC1.5V_U3_DDR VREFDQ VREFDQ VREFDQ +1.5V_FRC_DDR L301 C324 C325 VDD_1 VDD_1 VDD_1 10uF 0 . 1 u F A10/AP VDD_2 A10/AP...
  • Page 20 S T _ 3 . 5 V - - > 3 . 3 7 5 V +12V/+15V 20V-->3.51V +24V +12V/+15V + 3 . 5 V _ S T - > 3 . 3 7 5 V FROM LIPS & POWER B/D +3.5V_ST PANEL_POWER 24V-->3.64V...
  • Page 21 X1002-*1 32.768KHz CRYSTAL_EPSON CRYSTAL_KDS X1002 32.768KHz R1034 4.7M CRYSTAL_KDS R1091 +3.5V_ST f o r D e b u g g e r SW1001 JTP-1127WEM MICOM_DEBUG P1001 +3.5V_ST 12505WS-12A00 C1010 0 . 1 u F MICOM_RESET R1076 NEC_ISP_Tx R1078 NEC_ISP_Rx R1047 1/16W R1010 OCD1A...
  • Page 22 CONTROL IR & LED +3.5V_ST EYEQ/TOUCH_KEY R2411 NEC_EEPROM_SCL P2401 R2405 12507WR-12L R2404 5 . 6 B C2408 1000pF D2403 L2401 R2401 BLM18PG121SN1D KEY1 EYEQ/TOUCH_KEY L2402 R2402 D2402 NEC_EEPROM_SDA BLM18PG121SN1D 5.6V R2412 5 . 6 B KEY2 C2409 AMOTECH D2404 1000pF C2401 C2402 0 .
  • Page 23 [ L E V E L S h i f t B l o c k ] [POWER Block] D607 MMSD4148T1G VDD_LCM (+16V) 100V VCC_LCM CHECK Value!! ( + 3 . 3 V ) TCON_42_FHD_60_LAMP R635 R640 C628 C635 910K 470K C638-*1 47uF...
  • Page 24 HDMI EEPROM HDMI_3 IC801-*1 5V_HDMI_1 5V_HDMI_1 HDMI_1 5V_DET_HDMI_1 R1EX24002ASAS0A +5V_Normal 5V_HDMI_3 5V_DET_HDMI_3 ENKMC2838-T112 D821 R864 Q802 R830 Q804 HPD3 R896 HPD1 2SC3052 HDMI_1 2SC3052 HDMI_1_RENESAS IC801 EDID_WP $0.253 $0.253 AT24C02BN-SH-T C804 R804 R838 0 . 1 u F 1.8K 1.8K JP807 R859 R825...
  • Page 25 OMMON AREA New Item Development EARPHONE BLOCK EXCEPT_CHINA_HOTEL_OPT HP_LOUT 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 2:X19 10uF C1116 1000pF Q1102 R1128 MMBT3904-(F) MMBT3904-(F) SPK_R+_HOTEL R1129 Q1103 3.3K 2:X19 SIDE_HP_MUTE...
  • Page 26 RS232C Commercial IR_OUT R1122 R1123 JP1121 R1124 +3.5V_ST JP1122 D1107 D1108 CDS3C30GTH CDS3C30GTH C1101 0 . 3 3 u F SPG09-DB-009 IC1101 JK1101 C1106 MAX3232CDR 0 . 1 u F C1102 0 . 1 u F +3.5V_ST C1103 0 . 1 u F DOUT1 R1109 R1114...
  • Page 27 (New Item Developmen H:9.2mm) SIDE_AV SIDE_AV_OPT L3303 BLM18PG121SN1D SIDEAV_CVBS_IN +3.3V_Normal SIDE_AV_OPT D3301 SIDE_AV_OPT SIDE_AV_OPT R3305 R3302 SIDE_AV_OPT D3302 5.6V SIDE_AV_OPT SIDE_AV_OPT L3301 BLM18PG121SN1D SIDEAV_L_IN SIDE_AV_OPT SIDE_AV_OPT SIDE_AV_OPT D3303 C3302 R3308 5.6V 100pF SIDE_AV_OPT SIDEAV_R_IN SIDE_AV_OPT SIDE_AV_OPT D3304 C3303 5.6V 100pF THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 28 WIRELESS READY MODEL JK2601 KJA-PH-3-0168 W i r e l e s s p o w e r From wireless_I2C to micom I2C VCC[24V/20V/17V]_1 +3.3V_Normal VCC[24V/20V/17V]_2 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 R2604 C2601 INTERRUPT C2602 0 . 1 u F TP2601 2 .
  • Page 29 USB_DIODES IC1450 AP2191SG-13 +5V_USB L1451 MLB-201209-0120P-N2 $ 0 . 0 7 7 OUT_2 IN_1 120-ohm C1452 OUT_1 IN_2 C1453 10uF 0 . 1 u F C1451 22uF +3.3V_Normal NON_EU R1455 C1451-*1 4.7K 22uF R1456 USB1_CTL R1454 R1451 USB1_OCD R1453 SIDE_USB_DM R1452 SIDE_USB_DP D1451...
  • Page 30 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 SHEET7 220K 220K 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 31 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 32 +3.3V_Normal +3.3V_Normal S_FLASH IC1401 MX25L8005M2I-15G +3.3V_Normal C1401 /SPI_CS 0 . 1 u F HOLD# SPI_SDO R1402 SCLK /FLASH_WP SPI_SCK R1405 SPI_SDI R1401 Q1401 KRC103S THE 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 V e r .
  • Page 33 GIT CAN H/N TUNER for US&KOR&BRAZIL&TAIWAN&AUS RF_S/W_CTL BST_CTL +B1[5V] NC_1[RF_AGC] NC_2 SCLT SDAT NC_3 NC_4 VIDEO +5V_TU OPTION : BOOSTER +B2[1.2V] +B3[3.3V] RESET IF/AGC L5001 DIF_1[N] MLB-201209-0120P-N2 D I F _ 2 [ P ] OPTION : RF S/W BOOSTER_OPT SHIELD TU5001-*1 TDTR-T035F...
  • Page 34 PANASONIC (ISDB-T) MN884433 ISDB_DEMOD +1.2V_DE +3.3V_DE R2910 FE_TS_VAL_ERR ISDB_DEMOD ISDB_DEMOD ISDB_DEMOD R2911 ISDB_DEMOD ISDB_DEMOD ISDB_DEMOD C2913 C2916 C2917 C2920 C2922 FE_TS_SYNC 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 .
  • Page 35 Panasonic Demodulator Power(3.3V,1.2V) C h a n g e L i s t SEMTEK --> BCD A d d R 3 0 0 5 , R 3 0 0 6 , R 3 0 0 7 , L 3 0 0 2 , ISDB_BCD C 3 0 0 7 , C 3 0 0 8 ( o p t ) IC3001...
  • Page 36 +3.3V_Normal R3822 +3.3V_Normal R3827 R3802 COMP2_DET AV_CVBS_DET D3813 5.6V R3803 D3801 C3801 100pF SCART OPTION BLOCK 5.6V AV_R_IN R3824 SC1/COMP1_R_IN TP3801 SC1_FB SC1_CVBS_IN C3811 R3831 R3833 1000pF TP3802 SC1_ID D3812 5.6V SC_RE1 TP3803 +3.3V_Normal TP3804 SC_RE2 AV_L_IN R3823 R3804 TP3805 SCART1_MUTE 001:AR23 SC1/COMP1_L_IN...
  • Page 37 [51Pin LVDS Connector] ( F o r F H D 6 0 / 1 2 0 H z ) PANEL_VCC [ R i g h t F F C C o n n e c t o r ] ( 6 0 P i n M i n i - L V D S ) [LEFT FFC Connector] [41Pin LVDS Connector] [30Pin LVDS Connector]...
  • Page 38 +1.8V_AMP +3.3V_Normal IC404 AP1117E18G-13 ADJ/GND Vd=1.4V 120 mA C434 C421 C446 0 . 1 u F 10uF 0 . 1 u F +24V SPK_L+ D501 C540 OPT 0 . 0 1 u F 1N4148W R519 R526 L507 100V AD-9060 R527 C536 R535 R531 OPT...
  • Page 39 NOT USING B/T BT_ON/OFF BT_DM BT_DP BT_LOUT THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M V e r . 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 40 NON CI Region /PCM_REG /PCM_CD /PCM_OE PCM_5V_CTL /PCM_WE /PCM_CE FE_TS_DATA[0] /PCM_IORD /PCM_IOWR FE_TS_DATA[1] /PCM_IRQA FE_TS_DATA[2] FE_TS_DATA[3] FE_TS_SYNC FE_TS_VAL_ERR PCM_RST FE_TS_DATA[4] FE_TS_CLK /PCM_WAIT FE_TS_DATA[5] FE_TS_DATA[6] CI_TS_CLK FE_TS_DATA[7] CI_TS_VAL CI_TS_SYNC FE_TS_DATA[0-7] PCM_D[0] PCM_D[1] PCM_D[2] CI_TS_DATA[0] PCM_A[0] CI_TS_DATA[1] PCM_D[3] PCM_A[1] CI_TS_DATA[2] PCM_A[2] CI_TS_DATA[3] PCM_A[3] PCM_D[4] CI_TS_DATA[4]...
  • Page 41 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 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M V e r .
  • Page 42 NON Motion Remocon Region M_REMOTE_RX TP2501 M_REMOTE_TX TP2502 RF_RESET TP2503 RF_ENABLE TP2504 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M V e r . 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 43 NON CHINA HOTEL AMP_MUTE_HOTEL SPK_R+_HOTEL SPK_R-_HOTEL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. V e r . 1 . 0 GP2_Saturn7M FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON CHINA HOTEL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 44 /PIF_SPI_CS R6001 CHB_CVBS_IN THE 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 V e r . 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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32ld460b-sa