LCD TV SERVICE MANUAL - TV & Monitor Service Manual Database

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SCL1_5V SDA1_5V +5V +5V R938 R940 47K 47K READY R939 4.7K R941 47K MICROCHIP TECHNOLOGY IC901 24LC512 A0 1 MEMORIES A1 2 7 WP 8 VCC A2 3 6 SCL 0IMMRMP008A VSS 4 5 SDA DOUGLAS_EEPROM_MICROCHIP512K IC901-*1 M24512-WMW6 E0 1 E1 EAN43349001 2 7 WC E2 3 VSS 4 DOUGLAS_EEPROM_STM512K 8 VCC SCL 6 SDA 5 IC901-*2 AT24C512BW-SH-T A0 1 A1 EAN43352801 2 7 WP A2 3 GND 4 0xA6 8 VCC SCL 6 SDA 5 DOUGLAS_EEPROM_ATMEL512K Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes C 2008 SDA2_3.3V SCL2_3.3V 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 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +5V R945 4.7K R944 4.7K C910 0.1uF 16V R949 22 R950 22 SCART1_ID SCART2_ID +3.3V_CI R943 3.3K R942 3.3K +3.3V_DOUGLAS D_SUB_SDA D_SUB_SCL DDC_SDA_4 DDC_SCL_4 SDA_HDMI_SW SCL_HDMI_SW CI_EN RESET D24 A19 LBADC_33 UART0_RXD C900 B19 0.1uF UART0_TXD 16V E23 LBADC_GND A20 R914 UART1_RXD 1K C25 B20 R915 LBADC_IN1 UART1_TXD 1K C24 C20 R913 LBADC_IN2 UART1_RTS 1K B25 C19 LBADC_IN3 UART1_CTS B24 LBADC_IN4 A25 R912 LBADC_IN5 1K A24 B26 LBADC_IN6 TRST F22 LBADC_RETURN TDI 100 R900 D21 2WIRE_M1_SDA 100 R901 D20 2WIRE_M1_SCL 100 R902 E20 2WIRE_M0_SCL 100 R903 F20 2WIRE_M0_SDA 100 R904 B12 2WIRE_S0_SDA 100 R905 A12 2WIRE_S0_SCL 100 R908 D12 2WIRE_S1_SDA 100 R909 C12 2WIRE_S1_SCL 100 R906 E11 2WIRE_S2_SDA 100 R907 D11 2WIRE_S2_SCL B27 TDO A27 TMS A28 TCK B28 EJ_RST_N A29 EJ_DINT B29 C29 USB20-OC1 USB_FLAG C28 USB20-PWE1 USB_PWREN AJ20 USBPHY_PADP AH20 USBPHY_PADM AG20 USBPHY_VRES C21 IRDATA A13 B13 C13 D13 PWM3 PWM2 PWM1 PWM0 D23 FLI10620H-AA RESET_N C909 0.1uF READY R918 6.8K 0 R917 +3.3V_OTP R946 3.3K P1000 SMAW200-24C IC100 Douglas Full SW900 TMUE312GAB 2 1 4 3 5 C902 22uF 16V C901 10uF 6.3V READY DFSYNC E13 A21 PPWR PBIAS B21 C903 10uF 6.3V C904 0.1uF 16V READY 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 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 EAG42050901 JP20 JP15 JP16 JP17 JP18 JP19 R1010 0 JP22 JP21 JP23 JP24 VBR_A VBR_B VBR_B VBR_A R927 4.7K R929 6.2K 1% PANEL_ERROR_DET R967 0 READY P_+5V_CORE 1K R928 C905 0.1uF 16V C1022 0.1uF 16V C1004 0.1uF 16V C1021 0.1uF 16V C1020 0.1uF 50V DEBUG_RX DEBUG_TX CHAPLIN_RX CHAPLIN_TX +3.3V_STBY AR900 4.7K FRC_RESET C1023 0.1uF 16V L1005 R932 22 C906 33pF 50V 120-ohm C1031 0.1uF 16V L1000 120-ohm L1003 120-ohm 1.8V_DOUGLAS_EN C1007 100uF 16V C1059 4.7uF 2012 42,47 ECO No.18 C1058 4.7uF READY D1000 KDS226 A AC C 3.3V_EN C1000 0.1uF 16V L1004 120-ohm C1029 0.1uF 16V R1003 3.9K 1K 2012 C1059-*1 32,37 C1010 0.1uF 16V C1009 0.1uF 16V RESET USB20-OC1 0 R948 +3.3V_STBY C907 0.1uF 16V P_+5V +5V 0 R936 0 R934 READY R937 10K R935 USB20-PWE1 0 AC_DET C1028 0.1uF 50V C1008 0.22uF 16V C1005 4.7uF 10V VIN RL_ON/PWR_ONOFF C1027 4.7uF 10V C1002 4.7uF 10V 1 C908 0.1uF INV_CTL C1030 220uF 16V C1001 220uF 16V 6 IC1001 KIA78R33F VC 2 C1026 100uF 16V C1025 47uF 25V IC1002 BA18DD0WHFP CTL 1 VCC 2 IC1000 MP2305DS VOUT 3 GND2 MPS 8 7 6 5 4 3 2 1 9 12505WS-08A00 P1001 ENGINEERING IC902 TPS2042BDRG4 GND 1 TEXAS INSTRUMENT IN 2 7 OUT1 ANALOG SWITCH EN1 3 6 OUT2 EN2 4 DC-DC CONVERTER IN EN 2 7 SW 3 GND 4 R1002 3.9K BS 1 ROHM EAN42830901 3 NC P_+5V P_+12V P_+16V 0ITI204200C 1.2V_DOUGLAS_EN KEC LDO VOLTAGE REGULATOR 0IPMGKE031A 4 GND EAN33143501 GND1 5 C1011 0.1uF 16V SS 8 P_+5V_CORE 6 COMP FB 5 R1620 0 5 NC 4 VOUT C1057 0.1uF 16V C1013 560pF C1012 10uF 6.3V 8 OC1 5 OC2 C1015 0.1uF 16V C1014 0.015uF R1007 6.8K D902 D903 +3.3V_OTP R947 4.7K C1017 10uF 6.3V C1056 0.1uF 16V READY R1001 3.9K L1002 22uH USB20-1-DP USB20-1-DM L900 120-ohm C911 100uF 16V +1.8V_DOUGLAS_DDR R1006 0 +3.3V_DOUGLAS C1016 0.1uF 16V R1008 3.3K 1% R1009 10K 1% JP64 JP63 JP65 C1018 10uF 6.3V READY JP62 [R1008] 3.6K : 1.26V 3.3K : 1.22V 3.0K : 1.99V 1 2 3 4 C1019 10uF 6.3V 5 USB DOWN STREAM P901 KJA-UB-4-0004 C1024 470uF 16V +1.2V_DOUGLAS_D +3.3V_DOUGLAS +3.3V_DOUGLAS +3.3V_DOUGLAS +3.3V_DAC_DOUGLAS +3.3V_OTP C914 0.1uF 16V C915 330uF 6.3V C918 0.1uF 16V C919 0.1uF 16V L908 MLB-201209-0120P-N2 RTR030P02 Q900 D G C922 0.1uF 16V S +3.3V_DOUGLAS +3.3V_IO_DOUGLAS +1.2V_DOUGLAS_D +3.3V_DOUGLAS L903 MLB-201209-0120P-N2 +1.2V_DOUGLAS_D C933 10uF 6.3V +3.3V_DOUGLAS +3.3V_ADC_DOUGLAS +3.3V_DOUGLAS +3.3V_AUD_DOUGLAS +1.2V_DOUGLAS_D +3.3V_DOUGLAS +3.3V_LVTX_DOUGLAS C936 0.1uF 16V C937 0.1uF 16V R954 390 C951 0.1uF 16V C950 0.1uF 16V +3.3V_DOUGLAS 47K R955 C Q901 2N3904S L901 120-ohm E L904 120-ohm B +1.2V_DOUGLAS_D +1.2V_DOUGLAS +1.2V_HDMI_DOUGLAS L902 120-ohm 120-ohm L906 120-ohm +3.3V_HDMI_DOUGLAS +1.2V_AUD_DOUGLAS L905 120-ohm L907 R951 0 C964 0.1uF 16V C963 0.1uF 16V +1.2V_DDRPLL +1.8V_DOUGLAS_DDR 1K R957 P_+5V C925 10uF 6.3V C931 0.1uF 16V C932 0.1uF 16V R953 0 C940 0.1uF 16V C926 10uF 6.3V C927 10uF 6.3V C928 10uF 6.3V C929 10uF 6.3V C930 10uF 6.3V +1.2V_DOUGLAS_D C980 33uF 10V C941 0.1uF 16V C953 0.1uF 16V C949 0.1uF 16V C946 0.1uF 16V C942 0.1uF 16V C947 0.1uF 16V C948 0.1uF 16V C943 0.1uF 16V C985 0.1uF 16V C966 0.1uF 16V C957 0.1uF 16V +1.2V_DOUGLAS C962 0.1uF 16V C960 0.1uF 16V C958 0.1uF 16V C961 0.1uF 16V +3.3V_LVTX_PLL_DOUGLAS R956 0 C959 0.1uF 16V C939 0.1uF 16V C974 0.1uF 16V C970 0.1uF 16V C972 0.1uF 16V C971 0.1uF 16V +3.3V_DOUGLAS +3.3V_DOUGLAS_VDDI R958 0 +3.3V_DOUGLAS +3.3V_DOUGLAS_VAA P_+5V R959 0 12V Line P_+12V C1032 0.1uF 16V C1033 0.1uF 16V CI_EN C1912 22uFC1036 16V 0.1uF 16V L1006 120-ohm RL_ON/PWR_ONOFF 3.3V_EN VIN C924 10uF 6.3V C988 10uF 6.3V C989 10uF 6.3V C992 0.1uF 16V C993 0.1uF 16V C952 0.1uF 16V C979 0.1uF 16V C977 0.1uF 16V C976 0.1uF 16V C994 0.1uF 16V C965 0.1uF 16V C984 0.1uF 16V C973 0.1uF 16V C987 0.1uF 16V +1.2V_ADC_DOUGLAS R952 0 C997 10uF 6.3V C982 0.1uF 16V Nearby pin F23 Nearby pin AD23 IC1003 FAIRCHILD KA7809ERTM VOLTAGE REGULATOR EAN32662801 1 I C1911 C1034 22uF 0.1uF 16V 16V 2 G VIN C1900 0.1uF 16V C923 10uF 6.3V C978 0.1uF 16V C991 0.1uF 16V C1902 10uF 6.3V READY 6 IC1005 KIA78R05F 1 2 3 4 5 VC VOUT GND2 NC GND1 C1046 0.1uF 16V C938 0.1uF 16V C983 0.1uF 16V C996 0.1uF 16V SCART1_FB C1042 0.1uF 16V IC1007 ADVANCED ANALOG CIRCUITS AZ1117H-3.3 LDO VOLTAGE REGULATOR 0IPMGA0010A INPUT 3 1 ADJ/GND C1035 1uF 3 O R1013 47K 2 OUTPUT R1014 100 R1017 4.7K IC1004 KIA78R33F 1 2 3 4 5 VC C1037 0.1uF 16V VOUT 6 GND2 C1039 10uF 6.3V C1038 0.1uF 50V R1015 1K NC ADVANCED ANALOG CIRCUITS LDO VOLTAGE REGULATOR 0IPMG00049A B GND1 Q1000 2SC3052 E TRNPN_ISA C1041 0.1uF 16V C956 0.1uF 16V 6.3V 10uF C913 16V 0.1uF C917 16V 0.1uF C921 16V 0.1uF C935 16V 0.1uF C945 16V 0.1uF C955 16V 0.1uF C968 C986 0.1uF 16V C999 0.1uF 16V C969 0.1uF 16V C990 0.1uF 16V C1901 10uF 16V +1.8V_DOUGLAS_DDR C1906 0.1uF R910 22 +1.2V_DOUGLAS +3.3V_IO_DOUGLAS C1903 0.1uF 16V C998 0.1uF 16V C1904 0.1uF 16V +1.2V_ADC_DOUGLAS +3.3V_ADC_DOUGLAS +1.2V_AUD_DOUGLAS +3.3V_AUD_DOUGLAS +1.2V_DDRPLL +1.8V_DOUGLAS_DDR C912 10uF C916 0.1uF C920 0.1uF C934 0.1uF C944 0.1uF C954 0.1uF C967 0.1uF C975 0.1uF C981 0.1uF C995 0.1uF 16V C1908 0.1uF +3.3V_DOUGLAS +3.3V_DAC_DOUGLAS L11 CVDD12_1 L12 CVDD12_2 L17 CVDD12_3 L18 CVDD12_4 L19 CVDD12_5 M11 CVDD12_6 M12 CVDD12_7 M17 CVDD12_8 M18 CVDD12_9 M19 CVDD12_10 V11 CVDD12_11 V12 CVDD12_12 V13 CVDD12_13 V18 CVDD12_14 V19 CVDD12_15 W11 CVDD12_16 W12 CVDD12_17 W13 CVDD12_18 W18 CVDD12_19 W19 CVDD12_20 F12 IOVDD33_1 F13 IOVDD33_2 F14 IOVDD33_3 F15 IOVDD33_4 F16 IOVDD33_5 F18 IOVDD33_6 F19 IOVDD33_7 AD8 IOVDD33_8 AD10 IOVDD33_9 AD11 IOVDD33_10 AD12 IOVDD33_11 AD14 IOVDD33_12 AD16 IOVDD33_13 AD17 IOVDD33_14 AD18 IOVDD33_15 U6 IOVDD33_16 V6 IOVDD33_17 Y6 IOVDD33_18 AA6 IOVDD33_19 AB6 IOVDD33_20 A1 ADC_VDD12_1 B2 ADC_VDD12_2 C3 ADC_VDD12_3 E4 ADC_VDDA33_1 F4 ADC_VDDA33_2 G4 ADC_VDDA33_3 H4 ADC_VDDA33_4 K4 ADC_VDDA33_5 P6 AUD_AVDD12_1 R6 AUD_AVDD12_2 IC100 Douglas Full FLI10620H-AA L1 C4P T6 AUD_AVDD33_2 T5 AUD_AVDD33_3 U5 AUD_AVDD33_4 U4 AUD_AVDD33_5 U3 AUD_AVDD33_6 U2 AUD_HP_AVDD33 D22 DDRPLL_AVDD12 D25 DDR_VDD_1 D27 DDR_VDD_2 D29 DDR_VDD_3 F25 DDR_VDD_4 F27 DDR_VDD_5 F29 DDR_VDD_6 H24 DDR_VDD_7 H27 DDR_VDD_8 H29 DDR_VDD_9 K25 DDR_VDD_10 K27 DDR_VDD_11 K29 DDR_VDD_12 M25 DDR_VDD_13 M29 DDR_VDD_14 N24 DDR_VDD_15 P28 DDR_VDD_16 R25 DDR_VDD_17 U25 DDR_VDD_18 V27 DDR_VDD_19 Y25 DDR_VDD_20 Y27 DDR_VDD_21 Y29 DDR_VDD_22 AB24 DDR_VDD_23 AB27 DDR_VDD_24 AB29 DDR_VDD_25 AD25 DDR_VDD_26 AD27 DDR_VDD_27 AD29 DDR_VDD_28 AF25 DDR_VDD_29 AF27 DDR_VDD_30 AF29 DDR_VDD_31 E22 F5 DDRPLL_AVDD33 ADC_GNDA_1 +3.3V_DOUGLAS_VDDI E3 ADC_GNDA_2 F23 F1 DDR_VDDI_1 ADC_GNDA_3 AD23 G5 DDR_VDDI_2 ADC_GNDA_4 G3 ADC_GNDA_5 G25 H5 DDR2_VREF DDR_VRF_0 ADC_GNDA_6 R24 J5 DDR_VRF_1 ADC_GNDA_7 AA25 K5 DDR_VRF_2 ADC_GNDA_8 +3.3V_DOUGLAS_VAA K3 A4P M28 DLL_VAA0 V24 +3.3V_HDMI_DOUGLAS DLL_VAA1 AUD_AVSS12_1 C4 HDMI_VDDA33_1 D5 HDMI_VDDA33_2 D6 HDMI_VDDA33_3 E6 HDMI_VDDA33_4 E7 +1.2V_HDMI_DOUGLAS HDMI_VDDA33_5 D10 HDMI_VDD12_1 E8 HDMI_VDD12_2 E9 HDMI_VDD12_3 E10 +3.3V_LVTX_DOUGLAS HDMI_VDD12_4 M6 N6 AUD_AVSS12_2 L2 B4P P1 AUD_AVSS33_2 P2 AUD_AVSS33_3 P3 AUD_AVSS33_4 P4 AUD_AVSS33_5 P5 AUD_AVSS33_6 U1 AUD_HP_AVSS33 E21 DDRPLL_AGND AD6 VDAC_VDD12 AE6 VDAC_AVDD33_1 AF5 VDAC_AVDD33_2 AF6 VDAC_AVDD33_3 CVSS_1 D26 CVSS_2 D28 E24 CVSS_3 E26 CVSS_4 E28 CVSS_5 CVSS_6 G24 CVSS_7 G26 CVSS_8 G27 J24 CVSS_9 J26 CVSS_10 J28 CVSS_11 L13 CVSS_12 L14 CVSS_13 L15 CVSS_14 L16 CVSS_15 L24 CVSS_16 L26 CVSS_17 L28 CVSS_18 CVSS_19 M13 CVSS_20 M14 CVSS_21 M15 CVSS_22 M16 CVSS_23 N11 CVSS_24 N12 CVSS_25 N13 CVSS_26 N14 CVSS_27 N15 CVSS_28 N16 CVSS_29 N17 CVSS_30 N18 CVSS_31 N19 CVSS_32 N27 CVSS_33 N28 P11 CVSS_34 P12 CVSS_35 P13 CVSS_36 P14 CVSS_37 P15 CVSS_38 P16 CVSS_39 P17 CVSS_40 P18 CVSS_41 P19 CVSS_42 P26 CVSS_43 CVSS_44 R11 CVSS_45 R12 CVSS_46 R13 CVSS_47 R14 CVSS_48 R15 CVSS_49 R16 CVSS_50 R17 CVSS_51 R18 CVSS_52 R19 T11 CVSS_53 T12 CVSS_54 T13 CVSS_55 T14 CVSS_56 T15 CVSS_57 T16 CVSS_58 T17 CVSS_59 T18 CVSS_60 T19 CVSS_61 T24 CVSS_62 T26 CVSS_63 CVSS_64 U11 CVSS_65 U12 CVSS_66 U13 CVSS_67 U14 CVSS_68 U15 CVSS_69 U16 CVSS_70 U17 CVSS_71 U18 CVSS_72 U19 CVSS_73 V14 CVSS_74 V15 CVSS_75 V16 CVSS_76 V17 CVSS_77 V29 CVSS_78 W14 CVSS_79 W15 CVSS_80 W16 CVSS_81 W17 CVSS_82 W24 CVSS_83 W26 CVSS_84 W28 CVSS_85 AA24 CVSS_86 AA26 CVSS_87 AA27 CVSS_88 AC24 CVSS_89 AC26 CVSS_90 AC28 CVSS_91 AE24 CVSS_92 AE26 CVSS_93 AE28 D4 ADC_GND12_1 E5 ADC_GND12_2 F6 ADC_GND12_3 AE21 A2 LVTX_VDD33_1 HDMI_GNDA_1 AE22 C5 LVTX_VDD33_2 HDMI_GNDA_2 AF24 C6 +3.3V_LVTX_PLL_DOUGLAS LVTX_VDD33_3 HDMI_GNDA_3 C7 HDMI_GNDA_4 AG26 C8 LVTX_PLL_VDD33 HDMI_GNDA_5 C9 HDMI_GNDA_6 A26 C10 OTP_VDD33 HDMI_GNDA_7 +3.3V_DOUGLAS D7 HDMI_GNDA_8 B23 D8 RPLL_AVDD33 HDMI_GNDA_9 +1.2V_DDRPLL C23 AD21 RPLL_AVDD12 LVTX_VSS_1 +1.2V_DOUGLAS_D AD22 LVTX_VSS_2 AE20 AE23 +3.3V_DOUGLAS USB_AVDD12 LVTX_VSS_3 AG27 LVTX_VSS_4 AF20 USB_AVDD33_1 AG19 B22 USB_AVDD33_2 RPLL_AGND_1 AH19 C22 +1.2V_DOUGLAS USB_AVDD33_3 RPLL_AGND_2 KEC KIA7805AF 0IPMG00004A IC1008 VOLTAGE REGULATOR 1 I KEC 0IPMGKE031A C1044 0.1uF 16V 2 C C1045 0.1uF 16V IC1006 AZ1117H-1.8TRE1(EH13A) ROHM 2 OUTPUT R1018 47K C +9V_MSP 3 O LDO VOLTAGE REGULATOR INPUT 3 1 ADJ/GND S C1040 100uF 16V R1618 0 Q1001 RTR030P02 G D R1621 0 KEC 0IPMGKE030A REGULATOR R1619 0 READY C1048 10uF 6.3V +3.3V_STBY L1009 120-ohm C1913 0.1uF 16V READY C1049 0.1uF 16V C1043 0.1uF 16V C1050 100uF 16V C1051 100uF 16V C1054 100uF 16V C1047 4.7uF 10V READY C1053 4.7uF 10V +1.8V +5V_CI +3.3V_TUNER +3.3V_CI C1052 100uF 16V C1055 100uF 16V +5V +5V_TUNER Over current protection can be operated Standby Voltage Locate close to the TUNER B C Q1000-*1 2SC3875S TRNPN_KEC E AD20 USB_GND_1 AJ19 USB_GND_2 AF19 USB_GND_3 AC6 VDAC_VSS12 AD7 VDAC_AVSS33_1 AG4 VDAC_AVSS33_2 C1907 0.1uF C1909 0.1uF R911 75 R978 R977 510 10 SCART1_VIN LGE Internal Use Only
P/NO : MFL41557603 Feb., 2008 Printed in Korea
Page 1 and 2: LCD TV SERVICE MANUAL CHASSIS : LD8
Page 3: C 2008 Copyright LG Electronics. In
Page 6 and 7: SPECIFICATION NOTE : Specifications
Page 8 and 9: 3. Optical Feature(LCD Module) No.
Page 10 and 11: 7. HDMI DTV No. Resolution H-freq(k
Page 12 and 13: Copyright LG Electronics. Inc. All
Page 14 and 15: 9-3. 47LG6000 No, Item Content Rema
Page 17 and 18: 1. Power Board 1-1. The whole flowc
Page 19 and 20: 3. No Raster Symptom 1) No OSD and
Page 21 and 22: 2) In case of abnormal display on t
Page 23 and 24: 5. In case of no sound Symptom 1) L
Page 25 and 26: 300 200 200T 800 805 400 Copyright
Page 27: Copyright LG Electronics. Inc. All

LCD TV SERVICE MANUAL - TV & Monitor Service Manual Database

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