Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C2008
0.1uF
16V
C905
4.7K
R927
1K
R928
22
R932
33pF
50V
C906 RESET
SDA2_3.3V
SCL2_3.3V
SDA_HDMI_SW
SCL_HDMI_SW
DDC_SDA_4
DDC_SCL_4
100R907
100R906
100R905
100R904
100R903
100R902
100R901
100R900
RESET
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.
SCART1_ID
SCART2_ID
+5V
120-ohm
L900
D902
D903
TMUE312GABSW9001243
5
+3.3V_OTP
0.1uF
READYC909
+3.3V_DAC_DOUGLAS
+3.3V_ADC_DOUGLAS
+3.3V_DOUGLAS
+3.3V_DAC_DOUGLAS
+1.2V_AUD_DOUGLAS
1K
R957
+1.2V_DOUGLAS_D
+1.2V_DOUGLAS
+3.3V_OTP
+3.3V_DOUGLAS
2N3904S
Q901
E
B
C
+3.3V_DOUGLAS
+1.2V_DOUGLAS
+1.2V_DOUGLAS_D
+3.3V_HDMI_DOUGLAS
+3.3V_DOUGLAS
+1.2V_DDRPLL
+1.2V_DOUGLAS_D
DDR2_VREF
+3.3V_ADC_DOUGLAS
390
R954
47K
R955
+3.3V_LVTX_PLL_DOUGLAS
+1.2V_HDMI_DOUGLAS
+3.3V_IO_DOUGLAS
+3.3V_HDMI_DOUGLAS
+1.2V_DOUGLAS
+3.3V_AUD_DOUGLAS
+3.3V_DOUGLAS
+3.3V_DOUGLAS
+1.2V_DDRPLL
+1.2V_DDRPLL
+1.2V_AUD_DOUGLAS
+3.3V_LVTX_DOUGLAS
+3.3V_DOUGLAS
+3.3V_DOUGLAS
+3.3V_LVTX_DOUGLAS
+1.8V_DOUGLAS_DDR
+3.3V_AUD_DOUGLAS
+1.2V_HDMI_DOUGLAS
+3.3V_IO_DOUGLAS
+3.3V_DOUGLAS
+3.3V_LVTX_PLL_DOUGLAS
+1.2V_DOUGLAS_D
+1.2V_DOUGLAS_D
CI_EN
+5V +5V
SDA1_5V
SCL1_5V
+1.2V_ADC_DOUGLAS
+1.2V_DOUGLAS
+1.2V_ADC_DOUGLAS
+5V
D_SUB_SCL
D_SUB_SDA
+1.8V_DOUGLAS_DDR
+3.3V_DOUGLAS
+3.3V_DOUGLAS
+1.2V_DOUGLAS_D
+3.3V_DOUGLAS
+3.3V_CI
0
R951
0
R956
+1.8V_DOUGLAS_DDR
0.1uF
16V
C922
0.1uF
16V
C914
0.1uF
16V
C952
0.1uF
16V
C955
0.1uF
16V
C941
0.1uF
16V
C953
0.1uF
16V
C917
0.1uF
16V
C972
0.1uF
16V
C987
0.1uF
16V
C921
0.1uF
16V
C984
0.1uF
16V
C957
0.1uF
16V
C1903
0.1uF
16V
C968
0.1uF
16V
C991
0.1uF
16V
C998
0.1uF
16V
C938
0.1uF
16V
C979
0.1uF
16V
C973
0.1uF
16V
C950
0.1uF
16V
C948
0.1uF
16V
C956
0.1uF
16V
C982
0.1uF
16V
C974
0.1uF
16V
C970
0.1uF
16V
C943
0.1uF
16V
C996
0.1uF
16V
C940
0.1uF
16V
C945
0.1uF
16V
C1904
0.1uF
C975
0.1uF
16V
C960
0.1uF
16V
C951
0.1uF
16V
C990
0.1uF
16V
C946
0.1uF
16V
C947
0.1uF
16V
C976
0.1uF
16V
C961
0.1uF
16V
C966
0.1uF
16V
C939
0.1uF
16V
C949
0.1uF
C967
0.1uF
C934
0.1uF
16V
C958
0.1uF
16V
C983
0.1uF
16V
C942
0.1uF
16V
C986
0.1uF
16V
C995
0.1uF
16V
C963
0.1uF
16V
C936
0.1uF
16V
C971
0.1uF
16V
C918
0.1uF
C954
0.1uF
16V
C985
0.1uF
16V
C977
0.1uF
C944
0.1uF
C920
0.1uF
16V
C932
0.1uF
16V
C935
0.1uF
16V
C999
0.1uF
16V
C919
0.1uF
16V
C962
0.1uF
16V
C965
0.1uF
16V
C969
0.1uF
16V
C959
0.1uF
16V
C931
0.1uF
C981
0.1uF
16V
C978
0.1uF
C916
0.1uF
16V
C937
0.1uF
16V
C994
+3.3V_DOUGLAS
0.1uF
16V
C993
0.1uF
16V
C1900
+3.3V_DOUGLAS_VAA
+3.3V_DOUGLAS_VDDI
+3.3V_DOUGLAS
0.1uF
16V
C992
+3.3V_DOUGLAS_VAA
+3.3V_DOUGLAS_VDDI
0
R959
+3.3V_DOUGLAS
+3.3V_STBY
DEBUG_RX
DEBUG_TX
CHAPLIN_RX
CHAPLIN_TX
120-ohm
L907MLB-201209-0120P-N2L903
120-ohm
L904
120-ohm
L906
120-ohm
L901MLB-201209-0120P-N2L908
120-ohm
L905
120-ohm
L902
0
R953
0
R952
MICROCHIP TECHNOLOGY
24LC512
0IMMRMP008A
MEMORIES

IC901

DOUGLAS_EEPROM_MICROCHIP512K
3
A2
2
A1
4
VSS
1
A0
5SDA6SCL7WP8VCC
P_+5V
10uF
6.3V
C988
10uF
6.3V
C997
10uF
6.3V
C989
10uF
6.3V
C925
10uF
6.3V
C933
10uF
6.3V
C926
10uF
6.3V
C927
10uF
6.3V
C930
10uF
6.3V
C928
10uF
C912
10uF
6.3V
C913
100uF
16V
C911
10uF
6.3V
C929
10uF
6.3V
C923
+3.3V_OTP
1K
R913
1K
R912
VBR_B
VBR_A
10uF
16V
C1901
0.1uF
C1906
33uF
10V
C980
0
R958
0.1uF
16V
C900
510
R978
10
R977
0.1uF
C1907
10uF
6.3V
C1902
READY
0.1uF
16V
C964
0.1uF
16V
C907
+3.3V_STBY
FRC_RESET
0R967
READY
6.2K
1%
R929
1K
R914
1K
R915
6.8K
R918
100R908
100R909
4.7K
AR900
47K
R938
READY
47K
R940
47K
R941
4.7K
R939
22
R949
22
R950
4.7K
R944
4.7K
R945
4.7K
R947
0
R936
0
R934
READY
0
R948
10K
R937
0.1uF
C908
0.1uF
16V
C910
12505WS-08A00
P1001
ENGINEERING
1
2
3
4
5
6
7
8
9
TEXAS INSTRUMENT
TPS2042BDRG4
0ITI204200C
ANALOG SWITCH
IC902
3
EN1
2
IN
4
EN2
1
GND
5OC2
6OUT2
7OUT1
8OC1
3.3K
R946
USB DOWN STREAM
KJA-UB-4-0004
P901
1234
5
10uF
6.3V
C924
FLI10620H-AA
IC100
Douglas Full
CVDD12_1
L11
CVDD12_2
L12
CVDD12_3
L17
CVDD12_4
L18
CVDD12_5
L19
CVDD12_6
M11
CVDD12_7
M12
CVDD12_8
M17
CVDD12_9
M18
CVDD12_10
M19
CVDD12_11
V11
CVDD12_12
V12
CVDD12_13
V13
CVDD12_14
V18
CVDD12_15
V19
CVDD12_16
W11
CVDD12_17
W12
CVDD12_18
W13
CVDD12_19
W18
CVDD12_20
W19
IOVDD33_1
F12
IOVDD33_2
F13
IOVDD33_3
F14
IOVDD33_4
F15
IOVDD33_5
F16
IOVDD33_6
F18
IOVDD33_7
F19
IOVDD33_8
AD8
IOVDD33_9
AD10
IOVDD33_10
AD11
IOVDD33_11
AD12
IOVDD33_12
AD14
IOVDD33_13
AD16
IOVDD33_14
AD17
IOVDD33_15
AD18
IOVDD33_16
U6
IOVDD33_17
V6
IOVDD33_18
Y6
IOVDD33_19
AA6
IOVDD33_20
AB6
ADC_VDD12_1
A1
ADC_VDD12_2
B2
ADC_VDD12_3
C3
ADC_VDDA33_1
E4
ADC_VDDA33_2
F4
ADC_VDDA33_3
G4
ADC_VDDA33_4
H4
ADC_VDDA33_5
K4
AUD_AVDD12_1
P6
AUD_AVDD12_2
R6
C4P
L1
AUD_AVDD33_2
T6
AUD_AVDD33_3
T5
AUD_AVDD33_4
U5
AUD_AVDD33_5
U4
AUD_AVDD33_6
U3
AUD_HP_AVDD33
U2
DDRPLL_AVDD12
D22
DDR_VDD_1
D25
DDR_VDD_2
D27
DDR_VDD_3
D29
DDR_VDD_4
F25
DDR_VDD_5
F27
DDR_VDD_6
F29
DDR_VDD_7
H24
DDR_VDD_8
H27
DDR_VDD_9
H29
DDR_VDD_10
K25
DDR_VDD_11
K27
DDR_VDD_12
K29
DDR_VDD_13
M25
DDR_VDD_14
M29
DDR_VDD_15
N24
DDR_VDD_16
P28
DDR_VDD_17
R25
DDR_VDD_18
U25
DDR_VDD_19
V27
DDR_VDD_20
Y25
DDR_VDD_21
Y27
DDR_VDD_22
Y29
DDR_VDD_23
AB24
DDR_VDD_24
AB27
DDR_VDD_25
AB29
DDR_VDD_26
AD25
DDR_VDD_27
AD27
DDR_VDD_28
AD29
DDR_VDD_29
AF25
DDR_VDD_30
AF27
DDR_VDD_31
AF29
DDRPLL_AVDD33
E22
DDR_VDDI_1
F23
DDR_VDDI_2
AD23
DDR_VRF_0
G25
DDR_VRF_1
R24
DDR_VRF_2
AA25
DLL_VAA0
M28
DLL_VAA1
V24
HDMI_VDDA33_1
C4
HDMI_VDDA33_2
D5
HDMI_VDDA33_3
D6
HDMI_VDDA33_4
E6
HDMI_VDDA33_5
E7
HDMI_VDD12_1
D10
HDMI_VDD12_2
E8
HDMI_VDD12_3
E9
HDMI_VDD12_4
E10
LVTX_VDD33_1
AE21
LVTX_VDD33_2
AE22
LVTX_VDD33_3
AF24
LVTX_PLL_VDD33
AG26
OTP_VDD33
A26
RPLL_AVDD33
B23
RPLL_AVDD12
C23
USB_AVDD12
AE20
USB_AVDD33_1
AF20
USB_AVDD33_2
AG19
USB_AVDD33_3
AH19
VDAC_VDD12
AD6
VDAC_AVDD33_1
AE6
VDAC_AVDD33_2
AF5
VDAC_AVDD33_3
AF6
CVSS_1 D26
CVSS_2 D28
CVSS_3 E24
CVSS_4 E26
CVSS_5 E28
CVSS_6 G24
CVSS_7 G26
CVSS_8 G27
CVSS_9 J24
CVSS_10 J26
CVSS_11 J28
CVSS_12 L13
CVSS_13 L14
CVSS_14 L15
CVSS_15 L16
CVSS_16 L24
CVSS_17 L26
CVSS_18 L28
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
CVSS_34 P11
CVSS_35 P12
CVSS_36 P13
CVSS_37 P14
CVSS_38 P15
CVSS_39 P16
CVSS_40 P17
CVSS_41 P18
CVSS_42 P19
CVSS_43 P26
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
CVSS_53 T11
CVSS_54 T12
CVSS_55 T13
CVSS_56 T14
CVSS_57 T15
CVSS_58 T16
CVSS_59 T17
CVSS_60 T18
CVSS_61 T19
CVSS_62 T24
CVSS_63 T26
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
ADC_GND12_1 D4
ADC_GND12_2 E5
ADC_GND12_3 F6
ADC_GNDA_1 F5
ADC_GNDA_2 E3
ADC_GNDA_3 F1
ADC_GNDA_4 G5
ADC_GNDA_5 G3
ADC_GNDA_6 H5
ADC_GNDA_7 J5
ADC_GNDA_8 K5
A4P K3
AUD_AVSS12_1 M6
AUD_AVSS12_2 N6
B4P L2
AUD_AVSS33_2 P1
AUD_AVSS33_3 P2
AUD_AVSS33_4 P3
AUD_AVSS33_5 P4
AUD_AVSS33_6 P5
AUD_HP_AVSS33 U1
DDRPLL_AGND E21
HDMI_GNDA_1 A2
HDMI_GNDA_2 C5
HDMI_GNDA_3 C6
HDMI_GNDA_4 C7
HDMI_GNDA_5 C8
HDMI_GNDA_6 C9
HDMI_GNDA_7 C10
HDMI_GNDA_8 D7
HDMI_GNDA_9 D8
LVTX_VSS_1 AD21
LVTX_VSS_2 AD22
LVTX_VSS_3 AE23
LVTX_VSS_4 AG27
RPLL_AGND_1 B22
RPLL_AGND_2 C22
USB_GND_1 AD20
USB_GND_2 AJ19
USB_GND_3 AF19
VDAC_VSS12 AC6
VDAC_AVSS33_1 AD7
VDAC_AVSS33_2 AG4
FLI10620H-AA
IC100
Douglas Full
LBADC_33D24LBADC_GNDE23LBADC_IN1C25LBADC_IN2C24LBADC_IN3B25LBADC_IN4B24LBADC_IN5A25LBADC_IN6A24LBADC_RETURNF222WIRE_M1_SDAD212WIRE_M1_SCLD202WIRE_M0_SCLE202WIRE_M0_SDAF202WIRE_S0_SDAB122WIRE_S0_SCLA122WIRE_S1_SDAD122WIRE_S1_SCLC122WIRE_S2_SDAE112WIRE_S2_SCLD11PWM3A13PWM2B13PWM1C13PWM0D13RESET_ND23UART0_RXD A19UART0_TXD B19UART1_RXD A20UART1_TXD B20UART1_RTS C20UART1_CTS C19TRST B26TDI B27TDO A27TMS A28TCK B28EJ_RST_N A29EJ_DINT B29USB_FLAG C29USB_PWREN C28USBPHY_PADP AJ20USBPHY_PADM AH20USBPHY_VRES AG20IRDATA C21DFSYNC E13PPWR A21PBIAS B21
22
R910
SCART1_FB
0.1uF
C1909
SCART1_VIN
0.1uF
C1908
0
R935
330uF
6.3V
C915
3.3K
R942
3.3K
R943
RTR030P02
Q900
S
D
G
0
R917
10uF
6.3V
C903
JP62
JP63
JP64
JP65
75
R911
M24512-WMW6
EAN43349001
IC901-*1
DOUGLAS_EEPROM_STM512K
3
E2
2
E1
4
VSS
1
E0
5SDA
6SCL
7WC
8VCC
AT24C512BW-SH-T
EAN43352801
IC901-*2
DOUGLAS_EEPROM_ATMEL512K
3
A2
2
A1
4
GND
1
A0
5SDA
6SCL
7WP
8VCC
10uF
6.3V
C901
READY
0.1uF
16V
C904
READY
22uF
16V
C902
USB20-1-DP
USB20-1-DM
USB20-OC1
USB20-OC1
USB20-PWE1
USB20-PWE1
Nearby pin AD23Nearby pin F23
0xA6
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.
+1.8V_DOUGLAS_DDR
INV_CTL
220uF
16V
C1030
+5V_CI
0.1uF
16V
C1042
+3.3V_STBY
PANEL_ERROR_DET
+1.8V
0.1uF
16V
C1046
0IPMGKE030A
REGULATOR
KIA78R05F
KEC
IC1005
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
ADVANCED ANALOG CIRCUITS
AZ1117H-3.3
0IPMGA0010A
LDO VOLTAGE REGULATOR
IC1007
2
OUTPUT
3
INPUT 1ADJ/GND
P_+16V
1.2V_DOUGLAS_EN
0.1uF
50V
C1028
+3.3V_TUNER
0.1uF
16V
C1034
KEC
KIA7805AF
0IPMG00004A
VOLTAGE REGULATOR
IC1008
2
C
3O
1
I
220uF
16V
C1001
0.1uF
16V
C1049
120-ohm
L1003
P_+5V
0.1uF
16V
C1041
120-ohm
L1000
120-ohm
L1005
+3.3V_CI
0.1uF
16V
C1045
P_+5V
VBR_B
KDS226
D1000
READY
AAC
C
120-ohm
L1004
100
R1014
6.8K
R1007
P_+5V_CORE+1.2V_DOUGLAS_DP_+12V
0
R1010
0.1uF
16V
C1044
0.015uF
C1014
+5V_TUNER
4.7K
R1017
KEC
KIA78R33F
0IPMGKE031A
LDO VOLTAGE REGULATOR
IC1004
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
P_+5V+3.3V_DOUGLAS
3.3V_EN
KEC
KIA78R33F
0IPMGKE031A
LDO VOLTAGE REGULATOR
IC1001
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
0.1uF
16V
C1033
560pF
C1013
0.1uF
16V
C1011
10K
1%
R1009
P_+12VP_+5V_CORE
CI_EN
AC_DET
1.8V_DOUGLAS_EN
0.22uF
16V
C1008
0.1uF
16V
C1037
RL_ON/PWR_ONOFF
3.3V_EN
0.1uF
16V
C1009
0.1uF
16V
C1036
0.1uF
16V
C1000
0.1uF
16V
C1023
0.1uF
16V
C1016
10uF
6.3V
C1018
READY
10uF
6.3V
C1048
READY
10uF
6.3V
C1012
10uF
6.3V
C1017
10uF
6.3V
C1019
100uF
16V
C1051
100uF
16V
C1050
100uF
16V
C1007
0.1uF
16V
C1029
0.1uF
16V
C1031
10uF
6.3V
C1039
100uF
16V
C1026
47uF
25V
C1025
0.1uF
16V
C1032
4.7uF
10V
C1005
4.7uF
10V
C1053
READY
VBR_A
0.1uF
50V
C1038
1uFC1035
2SC3052
Q1000
TRNPN_ISA
E
B
C
1K
R1015
47KR1013
47K
R1018
+5V
+9V_MSP
RL_ON/PWR_ONOFF
120-ohm
L1009
0.1uF
16V
C1043
4.7uF
10V
C1047
100uF
16V
C1052
ADVANCED ANALOG CIRCUITS
AZ1117H-1.8TRE1(EH13A)
0IPMG00049A
LDO VOLTAGE REGULATOR
IC1006
2
OUTPUT
3
INPUT 1ADJ/GND
4.7uF
10V
C1002
0.1uF
16V
C1004
0.1uF
16V
C1022
0.1uF
16V
C1021
0.1uF
50V
C1020
4.7uF
10V
C1027
120-ohm
L1006
0.1uF
16V
C1015
0.1uF
16V
C1010
MPS
MP2305DS
EAN33143501
DC-DC CONVERTER
IC1000
3
SW
2
IN
4
GND
1
BS
5FB
6COMP
7EN
8SS
0.1uF
16V
C1056
READY
22uH
L1002
0.1uF
16V
C1057
SMAW200-24CEAG42050901P1000123456789101112131415161718192021222324
FAIRCHILD
KA7809ERTM
EAN32662801
VOLTAGE REGULATOR
IC1003
2
G
3O
1
I
4.7uF
C1058
2012
4.7uF
C1059
42,47
3.3K
1%
R1008
ROHM
RTR030P02
Q1001
S
D
G
ROHM
BA18DD0WHFP
EAN42830901
IC1002
1
CTL
2
VCC
3
GND
4VOUT
5NC
JP15JP16
JP17JP18
JP19
JP20
JP21
JP22
JP23
JP24
470uF
16V
C1024
3.9K
R1001
0
R1006
3.9K
R1002
3.9K
R1003
22uF
16V
C1911
0
R1618
0
R1619
22uF
16V
C1912
0
R1620
0
R1621
0.1uF
16V
C1913
READY
100uF
16V
C1040
100uF
16V
C1054
100uF
16V
C1055
2SC3875S
Q1000-*1
TRNPN_KEC
E
B
C
2012
1K
C1059-*1
32,37
Standby Voltage

Over current protection can be operated

12V Line

Locate close to the TUNER

[R1008]
3.6K : 1.26V
3.3K : 1.22V
3.0K : 1.99V
ECO No.18
Downloaded From TV-Manual.com Manuals