Read LG 50LN5420-TC (CHASSIS:LB36B) Service Manual online
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.
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.
R230
100
OPT
C258
0.1uF
HALF_NIM/EU_NON_T2
C219
0.047uF
D0-_HDMI4
COMP2_Y+/AV_CVBS_IN
L211
BLM18PG121SN1D
C257
0.1uF
HALF_NIM/EU_NON_T2
+3.5V_ST
R206
1K
M120
+3.3V_Normal
R204
100
OPT
MODEL_OPT_4
AUD_LRCK
AV2_R_IN
/VBUS_EN
AVDD5V_MHL
+3.3V_Normal
D1-_HDMI4
SCART1_Rout
C255
0.1uF
DDC_SCL_4
R209
1K
NON_DVB_T2
C251
0.1uF
R296
100
SPDIF_OPTIC
DDC_SCL_2
MODEL_OPT_0
R237
33
C225
0.047uF
AVDD_AU33
R212
1K
PHM_OFF
TP209
D0+_HDMI2
C240
0.1uF
0.1uF
L228
BLM18PG121SN1D
+3.5V_ST
AV2_L_IN
C218
0.047uF
+3.3V_Normal
RF_SWITCH_CTL
AVDD_AU33
C220
0.047uF
CK+_HDMI4
D0-_HDMI2
R244
33
C266
0.1uF
CK+_HDMI2
C279
0.1uF
R240
68
CK-_HDMI4
C287
OPT
MODEL_OPT_2
AVDD2P5
EPHY_RP
C230
0.047uF
AV2
C203
1000pF
OPT
50V
C268
4.7uF
10V
4.7uF
10V
HEAD_PHONE
C263
10uF
10uF
SOC_RESET
D0+_HDMI4
EPHY_TN
L205
HEAD_PHONE
5.6uH
R294
1K
MIU1-NO_DDR
D1+_HDMI2
C250
0.1uF
C248
0.1uF
AUD_MASTER_CLK_0
R249
33
AV2
R225
100
OPT
IF_N_MSTAR
C253
1uF
C223
0.047uF
EPHY_RN
IF_P_MSTAR
C274
0.1uF
MODEL_OPT_5
+1.10V_VDDC
L203
HEAD_PHONE
5.6uH
AMP_SCL
HDMI_ARC
D1+_HDMI4
COMP2_Pr+
AVDD2P5
AV2_CVBS_IN
C256
0.1uF
0.1uF
COMP2_Pb+
R216
47
HPD2
R224
1K
NON_DVB_S
EPHY_TP
+1.5V_DDR
HP_LOUT
C282
0.1uF
HALF_NIM/EU_NON_T2
R226
1K
HD
C209
0.1uF
C231
1uF
HDMI1_ARC
MODEL_OPT_1
SOC_RESET
COMP2_R_IN
R205
100
100
SWICH
L229
BLM18PG121SN1D
C285
0.047uF
25V
0.047uF
25V
HALF_NIM/EU_NON_T2
L208
BLM18PG121SN1D
IF_AGC_SEL
R252
68
C249
4.7uF
4.7uF
R220
10K
HALF_NIM/EU_NON_T2
C227
0.047uF
R211
1K
PHM_ON
AVDD_MIU
R288
100
HALF_NIM/EU_NON_T2
IF_AGC_MAIN
AVDD2P5_MOD
MODEL_OPT_6
AUD_SCK
C201
0.1uF
R291
1K
MIU1-128M
MIUVDDC
C272
4.7uF
10V
4.7uF
10V
HEAD_PHONE
CK-_HDMI2
C239
2.2uF
AV2
+3.3V_Normal
C241
0.1uF
0.1uF
L209
BLM18PG121SN1D
TU_SCL
C221
0.047uF
HPD4
DDC_SDA_4
AVDD_NODIE
L202
BLM18SG121TN1D
SCART1_Lout
R290
1K
DUALSTREAM
R222
1K
DVB_S
R287
1M
R227
1K
FHD
C273
0.1uF
MODEL_OPT_3
L227
BLM18PG121SN1D
HALF_NIM/EU_NON_T2
D2+_HDMI4
IR
C283
0.1uF
R208
1K
DVB_T2
C259
0.1uF
SIDE_USB1_DP
R246
33
SPDIF_OUT
TU_CVBS
L206
BLM18PG121SN1D
TU_SDA
R228
100
OPT
FB_CORE
COMP2_L_IN
CI_DET
R210
0
HDMI1_ARC
VDD33
C264
1000pF
OPT
50V
D2+_HDMI2
AUD_LRCH
SIDE_USB1_DM
VDD33
AVDD2P5_MOD
R200
62K
+1.10V_VDDC
D2-_HDMI2
VDD33
R266
470
RESET_IC_SOC_RESET
MIUVDDC
C238
2.2uF
AV2
C235
0.1uF
R239
33
R242
68
C242
2.2uF
+1.10V_VDDC
+2.5V_Normal
LNA2_CTL
AVDD_NODIE
+1.10V_VDDC
TU_SIF
COMP2_Y+/AV_CVBS_IN
L204
BLM18PG121SN1D
D1-_HDMI2
C207
0.1uF
R207
1K
NON_M120
R293
1K
NON_DUALSTREAM
C224
1000pF
DTV/MNT_VOUT
AMP_SDA
R241
33
D2-_HDMI4
AVDD_MIU
C233
0.047uF
PM_MODEL_OPT_1
SW200
JTP-1127WEM
SWICH
1
2
4
3
R202
100
BOOSTER_OPT
R238
68
C245
0.1uF
R201
100
OPT
C291
0.1uF
16V
0.1uF
16V
R218
47
C222
0.047uF
R221
1K
MIU0-256M
CEC_REMOTE_S7
X201
24MHz
24MHz
FB_CORE
C252
0.1uF
0.1uF
C243
2.2uF
MODEL_OPT_7
R229
100
OPT
COMP2_DET
R219
0
HALF_NIM/EU_NON_T2
R289
100
HALF_NIM/EU_NON_T2
R223
1K
MIU0-128M
POWER_DET_RESET
HP_ROUT
C286
0.1uF
0.1uF
+2.5V_Normal
DDC_SDA_2
SC1/COMP1_L_IN
SC1/COMP1_R_IN
SC1_FB
SC1_SOG_IN
SC1_B+/COMP1_Pb+
SC1_G+/COMP1_Y+
SC1_ID
SC1_R+/COMP1_Pr+
SC1_CVBS_IN
DEMOD_SCL
DEMOD_SDA
C284-*1
10uF 10V
CAP_10uF_X7R
C204-*1
10uF 10V
CAP_10uF_X7R
C269-*1
10uF 10V
CAP_10uF_X7R
MHL_CD_SENSE
C261
27pF
C262
27pF
IC101
MSD804KKX
S7LR-M_NON_MS10
RXACKP
J2
RXACKN
J3
RXA0P
K3
RXA0N
J1
RXA1P
K2
RXA1N
K1
RXA2P
L2
RXA2N
L3
DDCDA_DA/GPIO27
T5
DDCDA_CK/GPIO26
T4
HOTPLUGA/GPIO22
V5
HOTPLUGD/GPIO25
R5
RXCCKP
AE9
RXCCKN
AC9
RXC0P
AC10
RXC0N
AD9
RXC1P
AC11
RXC1N
AD10
RXC2P
AE11
RXC2N
AD11
DDCDC_DA/GPIO31
AE8
DDCDC_CK/GPIO30
AD8
HOTPLUGC/GPIO24
AC8
RXBCKP
F2
RXBCKN
F3
RXB0P
G3
RXB0N
F1
RXB1P
G2
RXB1N
G1
RXB2P
H2
RXB2N
H3
DDCDB_DA/GPIO29
R6
DDCDB_CK/GPIO28
U6
HOTPLUGB/GPIO23
P5
CEC/GPIO5
R4
HSYNC0
P2
VSYNC0
R3
RIN0P
N2
RIN0M
P3
GIN0P
N3
GIN0M
N1
BIN0P
M3
BIN0M
M2
SOGIN0
M1
HSYNC1
V2
VSYNC1
V3
RIN1P
U3
RIN1M
U2
GIN1P
T1
GIN1M
T2
BIN1P
R2
BIN1M
R1
SOGIN1
T3
HSYNC2
AA2
RIN2P
Y2
RIN2M
AA3
GIN2P
W2
GIN2M
Y3
BIN2P
V1
BIN2M
W3
SOGIN2
W1
CVBS0
AA8
CVBS1
Y4
CVBS2
W4
CVBS3
AA5
NC_5
Y5
NC_7
AA4
NC_6
Y6
CVBSOUT1
AA1
VCOM
AB4
NC_8
AC4
NC_9
AD3
IP
AC3
IM
AE3
SIFP
AD4
SIFM
AC5
IF_AGC
AD2
RF_AGC
AE2
I2C_SCKM1/GPIO78
AE6
I2C_SDAM1/GPIO79
AD6
XIN
AD1
XOUT
AC1
SPDIF_IN/GPIO150
D7
SPDIF_OUT/GPIO151
D6
USB0_DM
E3
USB0_DP
E2
USB1_DM
AC12
USB1_DP
AE12
I2S_IN_BCK/GPIO148
C8
I2S_IN_SD/GPIO149
D8
I2S_IN_WS/GPIO147
D9
I2S_OUT_BCK/GPIO154
B10
I2S_OUT_MCK/GPIO152
C9
I2S_OUT_SD/GPIO155
B9
I2S_OUT_WS/GPIO153
C10
AUL0
AB9
AUR0
AA11
AUL1
Y9
AUR1
AA9
AUL2
AA7
AUR2
AB8
AUL3
Y8
AUR3
Y10
AUL4
AC7
AUR4
AD7
GPIO_PM[13]/GPIO19
W6
AUOUTL2
V6
AVDD5V_MHL
V4
GPIO_PM[14]/GPIO20
Y7
AUOUTR2
W5
GPIO_PM[15]/GPIO21
U5
AUVRM
AD5
AUVAG
AE5
AUVRP
AC6
EARPHONE_OUTL
AA6
EARPHONE_OUTR
AB6
RP/GPIO63
C6
TP/GPIO60
C5
RN/GPIO66
A6
LED1/GPIO59
C4
TN/GPIO62
B5
GPIO61
C3
GPIO64
A3
GPIO65
B3
LED0/GPIO58
B4
IRIN/GPIO4
N4
ARC0
T6
HWRESET
N5
IC101
MSD804KKX
S7LR-M_NON_MS10
AVDDLV_USB
K12
VDDC_1
G9
VDDC_2
H9
VDDC_3
K10
VDDC_4
K11
VDDC_5
L10
VDDC_6
M12
VDDC_7
M13
VDDC_8
N12
VDDC_9
P14
VDDC_10
P15
VDDC_11
R10
VDDC_12
R14
VDDC_13
R15
VDDC_14
T10
NC_2
P10
FB_CORE
P19
AVDDL_MOD
R16
NC_1
L11
DVDD_DDR
M14
AVDD2P5_ADC_1
W9
AVDD2P5_ADC_2
W10
AVDD2P5_ADC_3
W11
AVDD2P5_ADC_4
W12
AVDD25_LAN
Y17
AVDD_MOD_1
V18
AVDD_MOD_2
U19
NC_3
W14
NC_4
W15
AVDD_NODIE
U7
AVDD_DVI_USB_1
L7
AVDD_DVI_USB_2
M7
AVDD3P3_MPLL
P7
AVDD_DMPLL
R7
DVDD_NODIE
M19
AVDD_AU33
V7
AVDD_EAR33
W7
VDDP_1
R19
VDDP_2
T19
AVDD_LPLL_1
W18
AVDD_LPLL_2
W19
VDDP_NAND
V19
AVDD_DDR0_D_1
J17
AVDD_DDR0_D_2
K15
AVDD_DDR0_D_3
K16
AVDD_DDR0_C
L15
AVDD_DDR1_D_1
K17
AVDD_DDR1_D_2
L17
AVDD_DDR1_D_3
M17
AVDD_DDR1_C
L16
GND_EFUSE
E9
GND_1
A23
GND_2
B17
GND_3
C23
GND_4
A5
GND_5
C11
GND_6
C19
GND_7
C22
GND_8
D14
GND_9
D18
GND_10
D19
GND_11
E17
GND_12
E18
GND_13
E19
GND_14
E22
GND_15
F8
GND_16
F17
GND_17
F18
GND_18
F19
GND_19
G8
GND_20
H8
GND_21
N22
GND_22
N21
GND_23
N20
GND_24
M22
GND_25
M21
GND_26
M20
GND_27
F10
GND_28
V15
GND_29
W16
GND_30
V8
GND_31
T18
GND_32
G10
GND_33
G11
GND_34
G12
GND_35
G13
GND_36
G14
GND_37
G17
GND_38
G18
GND_39
G19
GND_40
G24
GND_41
H11
GND_42
H12
GND_43
H13
GND_44
H14
GND_45
H15
GND_46
H16
GND_47
H17
GND_48
H18
GND_49
H19
GND_50
J9
GND_51
J10
GND_52
J11
GND_53
J12
GND_54
J13
GND_55
J14
GND_56
J15
GND_57
J16
GND_58
J18
GND_59
J19
GND_60
J25
GND_61
K9
GND_62
K13
GND_63
K14
GND_64
H10
GND_65
K18
GND_66
K19
GND_67
K22
GND_68
L8
GND_69
L9
GND_70
J8
GND_71
L12
GND_72
L13
GND_73
L18
GND_74
L19
GND_75
M8
GND_76
K8
GND_77
M10
GND_78
M11
GND_79
L14
GND_80
M15
GND_81
M16
GND_82
M18
GND_83
M25
GND_84
N10
GND_85
N11
GND_86
N13
GND_87
N14
GND_88
N15
GND_89
N16
GND_90
N17
GND_91
N19
GND_92
K7
GND_93
P8
GND_94
P9
GND_95
M9
GND_96
P11
GND_97
P13
GND_98
P16
GND_99
P17
GND_100
P18
GND_101
P12
GND_102
R8
GND_103
R9
GND_104
R11
GND_105
R12
GND_106
R13
GND_107
R17
GND_108
T8
GND_109
T9
GND_110
N7
GND_111
T11
GND_112
T12
GND_113
T13
GND_114
T14
GND_115
T15
GND_116
T16
GND_117
T17
GND_118
U8
GND_119
U9
GND_120
U10
GND_121
U11
GND_122
U12
GND_123
U13
GND_124
U14
GND_125
U15
GND_126
U16
GND_127
U17
GND_128
R18
GND_129
V9
GND_130
V10
GND_131
V11
GND_132
V12
GND_133
V14
GND_134
V17
GND_135
T7
GND_136
E8
10uF
10V
C204
CAP_10uF_X5R
85C
10uF
10V
C284
CAP_10uF_X5R
85C
10uF
10V
C269
CAP_10uF_X5R
85C
R217
0
AVDD_DMPLL
AVDD_DMPLL
C205
0.1uF
0.1uF
L207
BLM18PG121SN1D
R203
0
RF_SW_OPT
C288
33pF
HALF_NIM/IF_FILTER
C289
33pF
HALF_NIM/IF_FILTER
C202
4.7uF
10V
RESET_IC_SOC_RESET
C200
4.7uF
10V
+3.5V_SOC_RESET
C254
1uF
C260
1uF
C277
1uF
C280
1uF
10uF
10V
C228
10uF
10V
C275
10uF
10V
C296
10uF
10V
C278
URSA_SCL
URSA_SDA
POWER_ON/OFF_2
POWER_ON/OFF_2
URSA_SCL
URSA_SDA
R214
2.2
R215
2.2
NC4_S7LRM
52
2012.09.19
MAIN2_NON_EU
U23
MODEL OPTION
MODEL_OPT_3
MODEL OPTION
MIU0-128M
0
TUNER_I2C
Normal Power 3.3V
I2S_I/F
HIGH
DTV_IF
PHM_OFF
DDR3 1.5V
M120
MODEL_OPT_5
0
Close to MSTAR
NON_M120
SOC_RESET
MIU0-256M
0
ANALOG SIF
Close to MSTAR
PIN NAME
Close to MSTAR
Ginga
AVDD_DDR1:55mA
AB3
Memory OPTION
MODEL_OPT_6
CVBS In/OUT
U23
H/P OUT
AVSS_PGA
NON_DVB_T2
CHANGE TO X5R
AUDIO IN
PIN NO.
1
MIU1-128M
FHD
MIU1-NO_DDR
Memory
VDDC 1.05V
DVB_T2
MODEL_OPT_4
128M
HD
Close to MSTAR
COMP2
STby 3.5V
MODEL_OPT_6
T25
1
256M
MODEL_OPT_4
AVDD25_PGA
1
SIDE USB
B8
A8
Note
MODEL_OPT_6
CHANGE TO
10UF 10V X5R
10UF 10V X5R
CHANGE TO
10UF 10V X5R
10UF 10V X5R
128M+128M
VDDC : 2026mA
AVDD25_PGA:13mA
NON_DVB_S
CHANGE TO
10UF 10V X5R
10UF 10V X5R
DVB_S
T24
AB2
LOW
PHM_ON
B8
MODEL_OPT_1
MODEL_OPT_7
SYM.E
HDMI
AVDD_DDR0:55mA
MODEL_OPT_0
1
MODEL_OPT_4
256M+128M
AVDD2P5:172mA
* Dual Stream is only Korea 3D spec
MODEL_OPT_2
Normal 2.5V
PIN NO.
AUDIO OUT
PIN NO.
SYM.C
F4
0
DUALSTREAM
NON_DUALSTREAM
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