LG 55LF5950 Service Manual page 22

Place JACK Side
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
C305
R302
R306
50V
470K
470K
OPT 560pF
OPT
OPT
R303
0
COMP1_Pb
R304
0
COMP1_Pr
COMP1_Y/AV1
3216
R308
75
1%
TU_CVBS
IF_P
IF_N
IC101
LGE5221(A5LRA0)
+1.2V_MTK_AVDD
D27
ADCINP_DEMOD HSYNC
ADCIN_P_DEMOD
D28
ADCIN_N_DEMOD ADCINN_DEMOD VSYNC
E27
AVDD12_DEMOD
Closed to SoC Side
C322
0.1uF
R300
10K
IF_AGC
VGA_SDA
C300
VGA_SCL
0.047uF
25V
F15
IF_AGC COM1
E14
FE_DEMOD1_TS_DATA[7] RF_AGC PB1P
PR1P
E15
I2C_SCL2 OSCL1 SOY1
D15
I2C_SDA2
OSDA1
COM0
PB0P
H27
CVBS_COM PR0P
H28
AV1_CVBS CVBS3P
J25
SC_CVBS_IN_SOC CVBS2P SOY0
G28
TU_CVBS_SOC CVBS1P
C301 0.01uF G26
TU_SIF_TU CVBS0P
G25
SIF_COM
VDACX_OUT
Closed to SoC Side
AVDD33_VIDEO_STB
Closed to SoC Side
AVSS33_XTAL
AVSS33_DEMOD
DEV
C19
CEC CEC
TP300 HDMI_CEC HDMI_0_RX_0
HDMI_0_RX_0B
C16
HDMI_0_SCL HDMI_0_RX_1
DDC_SCL_2
D19
DDC_SCL_3 TP336 DDC_SCL_3 HDMI_1_SCL HDMI_0_RX_1B
U23
DDC_SCL_1 TP337 DDC_SCL_1 HDMI_2_SCL HDMI_0_RX_2
HDMI_0_RX_2B
HDMI_0_RX_C
D16
DDC_SDA_2
HDMI_0_SDA HDMI_0_RX_CB
G19
DDC_SDA_3
TP338 DDC_SDA_3 HDMI_1_SDA
DDC_SDA_1 U24
TP339 DDC_SDA_1 HDMI_2_SDA HDMI_1_RX_0
5V_HDMI_2 HDMI_1_RX_0B
R365
HDMI_1_RX_1
1K E18
HDMI_0_PWR5V HDMI_1_RX_1B
HDMI_1_RX_2
HDMI_1_RX_2B
HDMI_1_RX_C
HDMI_1_RX_CB
E17
HDMI_HPD_5V_2_CBUS HDMI_0_HPD_CBUS
F19
HDMI_HPD_5V_3 TP340 HDMI_HPD_5V_3 HDMI_1_HPD HDMI_2_RX_0
T22
HDMI_HPD_5V_1 TP341 HDMI_HPD_5V_1 HDMI_2_HPD HDMI_2_RX_0B
HDMI_2_RX_1
HDMI_2_RX_1B
R366
HDMI_2_RX_2
10K E16
MHL_SENSE HDMI_2_RX_2B
+1.2V_MTK_AVDD HDMI_2_RX_C
HDMI_2_RX_CB
A14
AVDD12_HDMI_1
U26
AVDD12_HDMI_2
C321
VDD3V3_HDMI
0.1uF C324
0.1uF
G20
AVDD33_HDMI
C359
C354
0.1uF 10uF
10V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Place SOC Side
1uF
C307 R324
COMP/AV1/DVI_L_IN_SOC
25V
30K
1uF C308 R325
COMP/AV1/DVI_R_IN_SOC
25V 30K
C306
C316
C315
50V
100pF
100pF
560pF 50V
50V
OPT OPT
OPT
R322 100 C314 0.01uF
COMP_PB_IN_SOC
1/16W
5%
R323 100 C317 0.01uF
COMP_PR_IN_SOC
1/16W
50V 50V 5%
10pF 10pF
C309 C311
R363 100 C352 0.047uF
AV1_CVBS
R321
C323
10 1500pF
COMP1_Y_SOY
1/16W
5%
R315 100
C319 0.01uF
COMP_Y_AV1_IN_SOC
50V
10pF
C310
R317
100
C320 0.01uF
COMP_COM_SOC
1/16W
5%
TU_ALL_2178B TU_ALL_2178B
R320 100 C318 0.047uF
TU_CVBS_SOC
Closed to SoC Side
TU_ALL_IntDemod
Close to Tuner C312
33pF
TU_ALL_IntDemod
R311 1K R313 51
ADCIN_P_DEMOD
C303 1uF
TU_ALL_IntDemod
10V
TU_ALL_IntDemod
R310 1K C304 1uF R314 51
ADCIN_N_DEMOD
TU_ALL_IntDemod 10V TU_ALL_IntDemod
TU_ALL_IntDemod C313
33pF
TU_ALL_IntDemod
R27
R28
N26
RP
N28
GP
P28
BP
N27
COM
P27
SOG
T28
T27
DTV/MNT_V_OUT
TP313
M25
SC_COM_SOC TP311 SC_COM_SOC
L28
SC_G_IN_SOC TP308 SC_G_IN_SOC
L27
SC_R_IN_SOC
TP309 SC_R_IN_SOC
M26
SC_B_IN_SOC
Y1P
N25 TP310 SC_B_IN_SOC
SC_FB_SOC
TP312 SC_FB_SOC
K26
COMP_COM_SOC TP314 SC_CVBS_IN_SOC
K25
COMP_PB_IN_SOC TP317 SCART_RIN_SOC
J26
COMP_PR_IN_SOC
TP318 SCART_Lout_SOC
K27
Y0P COMP_Y_AV1_IN_SOC
K28 TP315 SCART_Rout_SOC
COMP1_Y_SOY
+1.2V_MTK_AVDD
TP316 SCART_LIN_SOC
VDD3V3
R364
0
G27
DTV/MNT_V_OUT
C356
H23
0.1uF
C355
0.1uF
J20
K20
A17
D0+_HDMI2
B17
D0-_HDMI2
A16
D1+_HDMI2
B16
D1-_HDMI2
A15
D2+_HDMI2
B15
D2-_HDMI2
C17
CK+_HDMI2
D17
CK-_HDMI2
A20
D0+_HDMI3 TP320 D0+_HDMI3
B20
D0-_HDMI3 D0-_HDMI3
TP321
A19
D1+_HDMI3 D1+_HDMI3
TP322
B19
D1-_HDMI3 D1-_HDMI3
TP323
C18
D2+_HDMI3 TP324 D2+_HDMI3
D18
D2-_HDMI3 TP325 D2-_HDMI3
C21
CK+_HDMI3 TP326 CK+_HDMI3
B21
CK-_HDMI3 CK-_HDMI3
TP327
W26
D0+_HDMI1 TP328 D0+_HDMI1
W25
D0-_HDMI1 TP329 D0-_HDMI1
V26
D1+_HDMI1 TP332 D1+_HDMI1
V25
D1-_HDMI1 TP334 D1-_HDMI1
V28
D2+_HDMI1 D2+_HDMI1
TP335
V27
D2-_HDMI1 TP333 D2-_HDMI1
Y28
CK+_HDMI1 TP330 CK+_HDMI1
Y27
CK-_HDMI1 TP331 CK-_HDMI1
+3.3V_NORMAL
AREA OPTION
BIT [0/1] DVB ATSC
0 / 0 EU/CIS N/AMERICA
0 / 1 CHINA/HONGKONG KOREA
1 / 0 TAIWAN/COLOM S/AMERCIA
1 / 1 ASIA/AFRICA
IC101
LGE5221(A5LRA0)
AE18
MODEL_OPT_11
TCON0
AF18 AF19
HP_DET
TCON1 AE0P TXA4N
AD17 AE19
BIT0
TCON2 AE0N TXA4P
BIT1 AE15 AH19
TCON3 AE1P TXA3N
AD15 AG19
BIT2 TXA3P
TCON4 AE1N
AC19 AH18
BIT3
TCON5 AE2P TXACLKN
AD18 AG18
BIT4
TCON6 AE2N TXACLKP
AD19 AF17
BIT5
TCON7 AECKP TXA2N
AC17 AE17
BIT6
TCON8 AECKN TXA2P
BIT7 AD16 AF16
TCON9 AE3P TXA1N
AC15 AE16
MODEL_OPT_8 TXA1P
TCON10 AE3N
AC18 AH16
MODEL_OPT_9 TXA0N
TCON11 AE4P
AB17 AG16
MODEL_OPT_10
TCON12 AE4N TXA0P
AG15
AE5P
AH15
AE5N
VDD3V3
AF24
AO0P TXB4N
AE24
TXB4P
AO0N
AG14 AF23
AVDD12_LVDS AO1P TXB3N
AE23
C357 AO1N TXB3P
G22 AH23
1uF AVDD33_LVDSA AO2P TXBCLKN
AG23
10V
AO2N TXBCLKP
C358 AF22
AOCKP TXB2N
0.1uF R332 24K
AF14 AE22
TXB2P
REXT_VPLL AOCKN
AF21
TXB1N
AO3P
1% AE21
AO3N TXB1P
AH21
AO4P TXB0N
AG21
AO4N TXB0P
AF20
AO5P
DEV AE20
AO5N
A25
AR0_ADAC HP_ROUT_SOC
C22 C25
COMP/AV1/DVI_R_IN_SOC
AIN_R0 AL0_ADAC HP_LOUT_SOC
COMP/AV1/DVI_L_IN_SOC C24
AIN_L0
B23 B26
SCART_Rout_SOC
AIN_R1 AR1_ADAC
E23 A27
SCART_Lout_SOC
AIN_L1 AL1_ADAC
D23
SCART_RIN_SOC
AIN_R2
A22
SCART_LIN_SOC
AIN_L2
B22 B25
AIN_R3 AR2_ADAC
C23 A26
AIN_L3 AL2_ADAC
AVDD3V3_AADC
F21
AVDD33_ADAC
AVDD3V3_AADC
E21
AVDD33_AADC
AG27
ASPDIFI SPDIF_OUT
AH28
ASPDIFO0 HDMI_ARC
D22
VMID_AADC
AF27 R335 100
C332 AOBCK
C328
1uF AD26 R334 100
0.1uF
AOLRCK
10V AG28 R333 100
AOMCLK
AE27 OPT
AOSDATA1
K19 AF28 R336 100
AVSS33_CLN AOSDATA0
C329 C330 C331
OPT OPT OPT
22pF 22pF 33pF
Close to AVDD33_ADAC & AVDD33_AADC
VDD3V3
L300
AVDD3V3_AADC
C325 C326 C327
10uF 1uF
0.1uF
10V
10V
TUNER OPTION
BIT [6/7] EU/CIS AJJA TAIWAN/COL CHINA/HONG
0 / 0 T/C T/C T/C Default
Model Option
0 / 1 T2/C/S2/ATV_EXT T2/C/ATV_EXT T2/C PIP
1 / 0 T2/C T2/C/ATV_SOC T2/C
1 / 1 T2/C/S2/ATV_SOC T2/C/S2
BIT0
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
BACK-END OPTION
TYPE FHD FRC PANEL TYPE
JP BIT[2/3/4/5]
0 / 0 / 0 / 0 LVDS FHD, 60Hz
JAPAN 0 / 0 / 0 / 1 EPI FHD, 120Hz, v14_32inch (6 lane)
0 / 0 / 1 / 0 EPI FHD, 120Hz, V13 (6 lane)
0 / 0 / 1 / 1 EPI FHD, 120Hz, V12 (6 lane)
0 / 1 / 0 / 0
EPI FHD, 60Hz, V14_32 inch (6lane)
0 / 1 / 0 / 1
LVDS FHD, 120Hz
0 / 1 / 1 / 0
EPI FHD, 120Hz, V14 (8 lane)
0 / 1 / 1 / 1
LVDS HD, 60Hz
1 / 0 / 0 / 0
LVDS FHD, 60Hz, CP BOX
1 / 0 / 0 / 1 LVDS HD, 60Hz SMALL SMART
1 / 0 / 1 / 0
Vby1 FHD, 120Hz OLED
1 / 0 / 1 / 1 LVDS FHD, 120Hz OLED
1 / 1 / 0 / 0
1 / 1 / 0 / 1
1 / 1 / 1 / 0
1 / 1 / 1 / 1
+1.2V_MTK_CORE
+1.2V_MTK_CORE +1.2V_MTK_AVDD
OPT
L301
BLM18PG121SN1D C344
TP304 10uF
C338
10uF
+1.2V_MTK_CORE
+3.3V_NORMAL VDD3V3
L302
BLM18PG121SN1D
TP305
C337 C339 C340 C341
10uF 10uF 0.1uF 2.2uF
AUD_SCK
AUD_LRCK
AUD_LRCH
KOREA NORTH AMERICA BRAZIL JAPAN
ATSC NIM+T2 ISDB PIP Default
Default
Half NIM+T2 ISDB
Half NIM
ATSC PIP
POWER_ON/OFF1
TP301
MODEL_OPT_8
MODEL_OPT_9
MODEL_OPT_10
IC101
MODEL_OPT_11 LGE5221(A5LRA0)
+1.2V_MTK_CORE +1.2V_MTK_CORE
MODEL_OPT_12
MODEL_OPT_13
Y16 Y21
VCCK_1 VCCK_23
W17 W22
MODEL_OPT_11
VCCK_2 VCCK_24
Y17 Y22
VCCK_3 VCCK_25
HIGH : ODT DISABLE W18
AA22
VCCK_4 VCCK_26
LOW : ODT ENABLE
Y18 AB22
VCCK_5 VCCK_27
P19 Y23
VCCK_6 VCCK_28
R19 AA23
VCCK_7 VCCK_29
T19 AB23
VCCK_8 VCCK_30
U19 AA24
VCCK_9 VCCK_31
V19 AB24
VCCK_10 VCCK_32
W19
VCCK_11
Y19
VCCK_12
P20
VCCK_13
R20 DEV
VCCK_14
T20
VCCK_15
U20
VCCK_16
V20
VCCK_17
W20
VCCK_18
Y20
VCCK_19
U21
VCCK_20
V21
VCCK_21
W21
VCCK_22
VDD3V3
G21
VCC3IO_A
F22
VCC3IO_B
IC101
LGE5221(A5LRA0)
A28 P11
DVSS_1 DVSS_85
C12 P12
DVSS_2 DVSS_86
C15 P13
DVSS_3
DVSS_87
C26 P14
DVSS_4 DVSS_88
C27 P15
DVSS_5 DVSS_89
C28 P16
DVSS_6 DVSS_90
D24 P17
DVSS_7 DVSS_91
D26 P18
DVSS_8 DVSS_92
E6 P22
DVSS_9 DVSS_93
E7 R3
DVSS_10 DVSS_94
E8 R11
DVSS_11 DVSS_95
E9 R12
DVSS_12 DVSS_96
E22 R13
DVSS_13 DVSS_97
E26 R14
DVSS_14 DVSS_98
F6 R15
DVSS_15 DVSS_99
F7 R16
DVSS_16
DVSS_100
F8 R17
DVSS_17 DVSS_101
F9 R18
DVSS_18 DVSS_102
G6 T11
DVSS_19 DVSS_103
G7 T12
DVSS_20 DVSS_104
G8 T13
DVSS_21 DVSS_105
G9 T14
DVSS_22 DVSS_106
G14 T15
DVSS_23 DVSS_107
H3 T16
DVSS_24 DVSS_108
H7 T17
DVSS_25 DVSS_109
H8 T18
DVSS_26 DVSS_110
J3 T23
DVSS_27 DVSS_111
J5 T26
DVSS_28 DVSS_112
J14 U7
DVSS_29
DVSS_113
J15 U8
DVSS_30 DVSS_114
J16 U11
OPT OPT
DVSS_31 DVSS_115
J17 U12
DVSS_32 DVSS_116
J18 U13
C346 C349
DVSS_33 DVSS_117
0.1uF 0.1uF K6 U14
DVSS_34 DVSS_118
K9 U15
DVSS_35 DVSS_119
K10 U16
DVSS_36 DVSS_120
K11 U17
DVSS_37 DVSS_121
K12 U18
DVSS_38 DVSS_122
K13 V3
DVSS_39 DVSS_123
K14 V11
DVSS_40 DVSS_124
K15 V12
DVSS_41 DVSS_125
K16 V13
DVSS_42 DEV DVSS_126
K17 V14
DVSS_43 DVSS_127
K18 V15
DVSS_44 DVSS_128
L2 V16
DVSS_45 DVSS_129
L9 V17
DVSS_46 DVSS_130
L10 V18
DVSS_47 DVSS_131
L11 W7
DVSS_48 DVSS_132
L12 W11
DVSS_49 DVSS_133
L13 W12
DVSS_50 DVSS_134
L14 W13
DVSS_51 DVSS_135
L15 W14
DVSS_52 DVSS_136
L16 W16
TP307 DVSS_53 DVSS_137
L17 Y3
DVSS_54 DVSS_138
C345 C347 C348 C350 C351
L18 Y25
10uF 10uF 0.1uF 0.1uF 0.1uF
DVSS_55 DVSS_139
L19 AA8
DVSS_56 DVSS_140
L20 AB1
DVSS_57 DVSS_141
M4 AB5
DVSS_58 DVSS_142
M9 AB9
DVSS_59 DVSS_143
M10
AB11
DVSS_60 DVSS_144
M11 AB13
DVSS_61 DVSS_145
M12 AB16
DVSS_62 DVSS_146
M13 AB18
DVSS_63 DVSS_147
M14 AB19
DVSS_64 DVSS_148
M15 AB20
DVSS_65 DVSS_149
M16 AC2
DVSS_66 DVSS_150
M17 AC13
DVSS_67 DVSS_151
M18 AC22
DVSS_68 DVSS_152
M19 AC23
DVSS_69 DVSS_153
M20 AC24
DVSS_70 DVSS_154
N3 AD4
DVSS_71 DVSS_155
N9 AD13
DVSS_72 DVSS_156
N10
AD14
DVSS_73 DVSS_157
N11 AD25
DVSS_74 DVSS_158
N12 AE14
DVSS_75 DVSS_159
N13 AF4
DVSS_76 DVSS_160
N14 AF7
DVSS_77 DVSS_161
N15 AF10
DVSS_78 DVSS_162
N16 AF13
DVSS_79 DVSS_163
N17 AF25
DVSS_80 DVSS_164
N18 AG1
DVSS_81 DVSS_165
N19 AH6
DVSS_82 DVSS_166
N20 AH9
DVSS_83 DVSS_167
P5
DVSS_84
2014.11.01
A5LR_Bring_Up
MAIN2 3
LGE Internal Use Only