Read LG 52LG7000-ZA (CHASSIS:LD88F) Service Manual online
0.1uF
16V
C905
4.7K
R927
R927
1K
R928
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
100
R905
100
R904
100
R903
100
R902
100
R901
100
R900
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
+3.3V_OTP
0.1uF
READY
C909
+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
+3.3V_OTP
+3.3V_DOUGLAS
2N3904S
Q901
E
B
C
+3.3V_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
+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_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
C941
0.1uF
16V
C953
0.
1u
F
16V
C917
0.1uF
16V
C972
0.1uF
16V
C987
0.
1u
F
16V
C921
0.1uF
16V
C984
0.1uF
16V
C957
0.1uF
16V
C1903
0.
1u
F
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.
1u
F
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.
1u
F
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
GPROBE_RX
120-ohm
L907
MLB-201209-0120P-N2
L903
120-ohm
L904
120-ohm
L906
120-ohm
L901
MLB-201209-0120P-N2
L908
120-ohm
L905
120-ohm
L902
MICROCHIP TECHNOLOGY
24LC512
0IMMRMP008A
MEMORIES
IC901
MICROCHIP
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
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
6.3V
C913
10uF
6.3V
C929
10uF
6.3V
C923
+3.3V_OTP
1K
R913
1K
R912
10uF
6.3V
C901
READY
VBR_B
10uF
6.3V
C902
VBR_A
10uF
16V
C1901
0.1uF
C1906
33uF
10V
C980
0
R958
0.1uF
16V
C900
10uF
6.3V
C1902
READY
0.1uF
16V
C964
0.1uF
16V
C907
+3.3V_STBY
0
R967
READY
6.2K
1 %
R929
1K
R914
1K
R915
6.8K
R918
4.7K
AR900
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
R936
0
R948
10K
R937
R937
0.1uF
C908
0.1uF
16V
C910
12505WS-08A00
P902
READY
1
2
3
4
5
6
7
8
9
TEXAS INSTRUMENT
TPS2042BDRG4
0ITI204200C
ANALOG SWITCH
IC902
READY
3
EN1
2
IN
4
EN2
1
GND
5
OC2
6
OUT2
7
OUT1
8
OC1
3.3K
R946
U S
B D
O W
N S
T R
E A
M
KJA-UB-4-0004
P901
P901
1
2
3
4
5
10uF
6.3V
C924
FLI10620H-AA
IC100
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
LBADC_33
D24
LBADC_GND
E23
LBADC_IN1
C25
LBADC_IN2
C24
LBADC_IN3
B25
LBADC_IN4
B24
LBADC_IN5
A25
LBADC_IN6
A24
LBADC_RETURN
F22
2WIRE_M1_SDA
D21
2WIRE_M1_SCL
D20
2WIRE_M0_SCL
E20
2WIRE_M0_SDA
F20
2WIRE_S0_SDA
B12
2WIRE_S0_SCL
A12
2WIRE_S1_SDA
D12
2WIRE_S1_SCL
C12
2WIRE_S2_SDA
E11
2WIRE_S2_SCL
D11
PWM3
A13
PWM2
B13
PWM1
C13
PWM0
D13
RESET_N
D23
UART0_RXD
A19
UART0_TXD
B19
UART1_RXD
A20
UART1_TXD
B20
UART1_RTS
C20
UART1_CTS
C19
TRST
B26
TDI
B27
TDO
A27
TMS
A28
TCK
B28
EJ_RST_N
A29
EJ_DINT
B29
USB_FLAG
C29
USB_PWREN
C28
USBPHY_PADP
AJ20
USBPHY_PADM
AH20
USBPHY_VRES
AG20
IRDATA
C21
DFSYNC
E13
PPWR
A21
PBIAS
B21
22
R980
SCART1_FB
0.1uF
C9001
SCART1_VIN
0.1uF
C9000
0
R935
3.3K
R942
3.3K
R943
RTR030P02
Q900
Q900
S
D
G
0.1uF
C9004
0
R917
249
1%
R982
KRC103S
Q902
E
B
C
10K
R983
+3.3V_OTP
0.1uF
C1907
100
R909
100
R908
10
R977
510
R978
SIDE_CIN
USB20_1_DM
USB20_1_DP
0.
1u
F
16V
C955
0
R6039
R6039
0
R6040
R6040
M24512-WMW6
EAN43349001
STM512K
IC901-*1
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
AT24C512BW-SH-T
EAN43352801
ATMEL512K
IC901-*2
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
75
R981
75
R979
JP83
JP84
JP85
JP86
0
R6038
READY
0
R6037
READY
MIC2009YM6-TR
IC903
3
ENABLE
2
GND
4
FAULT/
1
VIN
6
VOUT
5
ILIMIT
GPROBE_TX
47
R906
47
R907
330uF
16V
C915
0.1uF
C9014
0
R1901
1uF
C9012
0
R997
0R
998
10uF
6.3V
C9011
+3.3V_CI
0.1uF
C9009
+5V
0R
98
9
0
R990
1uF
C9007
U S
B U
P -D
P
U S
B U
P -D
M
2.4K
R991
15K
R992
R992
33
R993
0R
994
15
R984
0
R9000
4.7uF
C9006
15
R999
0.1uF
C9016
0.1uF
C9010
MLB-201209-0120P-N2
L910
0
R996
MLB-201209-0120P-N2
L909
0
R995
0
R987
4.7uF
C9017
10K
R986
4.7uF
C9013
10K
R985
0.
1u
F
C9015
UPD720114GA-9EU-A
IC904
1
VDD25OUT
2
VSSREG
3
LED4
4
LED3
5
LED2
6
LED1
7
GREEN
8
AMBER
9
VDD33_1
10
X1
11
X2
12
VDD25_1
13
BUS_B
14
TEST
15
RREF
16
AVSS[R]
17
A V
D D
_ 1
18
A V
S S
19
A V
D D
_ 2
20
VDD33_2
21
D M
U
22
D PU
23
VSS_1
24
VDD25_2
25
DM1
26
DP1
27
VSS_2
28
DM2
29
DP2
30
VDD33_3
31
DM3
32
DP3
33
VDD25_3
34
DM4
35
DP4
36
VSS_3
37
SYSRSTB
38
PPB4
39
CSB4
40
PPB3
41
CSB3
42
VSS_4
43
PPB2
44
CSB2
45
PPB1
46
CSB1
47
V B
U SM
48
V D
D 33
R E
G
FRC_PRST
BLUE-DP
BLUE-DM
USB20_1_DM
USB20_1_DP
U S
B U
P -D
M
U S
B U
P -D
P
100uF
16V
C911
0.1uF
16V
C904
READY
22uF
16V
C903
+1.2V_DOUGLAS_D
+1.2V_DOUGLAS_D
+1.2V_DOUGLAS_D
0
R952
4.7K
R962
47K
R961
+5V
0
READY
R963
JP88
1uF
C9102
JP89
2SC3052
Q903
E
B
C
SMAW200-05
P903
1
2
3
4
5
RTR030P02
Q904
S
D
G
JP87
BLUE-DM
47K
R960
BLUE-DP
BLUETOOTH_ON/OFF
JTP-1127WEM
SW900
1
2
43
30MHz
X900
10pF
C9005
33pF
C9008
USB20-OC1
USB20-PWE1
USB20_1_DP
Nearby pin AD23
Nearby pin F23
0xA6
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