LG 42LN549D (CHASSIS:LB3AX) Service Manual ▷ View online
- 21 -
A2
A10
A9
900
200
200T
400
540
521
530
301
500
910
120
300
510
123
122
Set + Stand
LV
1
LGD Module
Stand Base
+
Stand Body
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
22pF
C262
HPD1
1K
R4027
OLED
IR
10uF
C284
1M
R287
AVDD_AU33
10uF
C228
BLM18PG121SN1D
L229
47
R4002
33
R244
0 . 1 u F
C258
HALF_NIM/EU_NON_T2
1K
PHM_OFF
R212
D0+_HDMI4
BLM18PG121SN1D
L204
0 . 1 u F
C240
+1.5V_DDR
TU_SDA
0 . 1 u F
C257
HALF_NIM/EU_NON_T2
MODEL_OPT_0
TP208
0 . 1 u F
C274
0.1uF
C4046
1K
120HZ
R291
1K
R4028
DVB_S
IF_P_MSTAR
AVDD2P5
4 . 7 u F
C249
C4067
OPT
HDMI_ARC
100
R288
HALF_NIM/EU_NON_T2
BLM18PG121SN1D
L208
AUD_LRCK
0 . 1 u F
C4062
D2+_HDMI4
BLM18PG121SN1D
L228
+1.10V_VDDC
D0+_HDMI2
MODEL_OPT_3
AVDD2P5_MOD
+1.10V_VDDC
MIUVDDC
0 . 1 u F
16V
16V
C4070
D1+_HDMI2
D1+_HDMI1
+3.3V_Normal
DDC_SCL_4
DDC_SCL_2
AVDD_NODIE
D2-_HDMI1
PM_MODEL_OPT_1
22pF
C261
D2+_HDMI1
IF_N_MSTAR
1K
OS_DualStream(O)/NonOS_ErrorOut(X)
R290
CK+_HDMI1
MODEL_OPT_5
62K
R200
33
R210
HDMI1_ARC
AVDD25_PGA
BLM18PG121SN1D
L219
33
R246
100pF
C4068
HALF_NIM/EU_NON_T2
100
R289
HALF_NIM/EU_NON_T2
D1-_HDMI1
VDD33
D1-_HDMI2
AUD_LRCH
10uF
C269
D1+_HDMI4
0 . 1 u F
C201
0 . 1 u F
C250
0 . 0 4 7 u F
C231
HDMI1_ARC
0
R4004
HALF_NIM/EU_NON_T2
1K
R293
OS_DualStream(X)/NonOS_ErrorOut(O)
1K
FHD
R227
CK-_HDMI1
1K
R294
NON_120HZ
0.1uF
C283
HPD2
D0+_HDMI1
HPD4
VDD33
0 . 1 u F
C256
0
R4001
OPT
+2.5V_Normal
AVDD_AU33
MODEL_OPT_1
1K
HD
R226
1K
NON_3D
R207
1K
R209
NON_DVB_T2
D2-_HDMI2
1000pF
OPT
C203
68
R252
DDC_SCL_1
MODEL_OPT_4
+1.10V_VDDC
+3.5V_ST
0 . 1 u F
C252
0.1uF
C4043
CK+_HDMI2
TU_SIF
BLM18PG121SN1D
L227
HALF_NIM/EU_NON_T2
AVDD2P5_MOD
VDD33
0 . 1 u F
C4027
AVSS_PGA
CK-_HDMI4
D0-_HDMI4
1000pF
OPT
C264
CK+_HDMI4
AVSS_PGA
VDD33
0.1uF
C4025
BLM18PG121SN1D
L206
BLM18PG121SN1D
L211
AMP_SCL
AUD_SCK
D0-_HDMI2
0 . 0 4 7 u F
25V
25V
C4065
HALF_NIM/EU_NON_T2
D1-_HDMI4
10uF
C278
+1.5V_DDR
0.1uF
C4009
D0-_HDMI1
CK-_HDMI2
0 . 1 u F
C273
MODEL_OPT_6
SOC_RESET
USB1_DP
100pF
C4069
HALF_NIM/EU_NON_T2
10uF
C275
1K
R4029
NON_OLED
0 . 0 4 7 u F
C227
0 . 0 4 7 u F
C233
47
R4003
1uF
C4045
MODEL_OPT_2
AVDD2P5
+3.3V_Normal
0 . 1 u F
C251
AVDD_NODIE
10uF
C4071
0.1uF
C4038
DDC_SDA_4
1K
3D
R206
TU_CVBS
10uF
C263
0 . 0 4 7 u F
C225
0 . 1 u F
C4064
HALF_NIM/EU_NON_T2
CEC_REMOTE_S7
AUD_MASTER_CLK_0
10K
R4019
HALF_NIM/EU_NON_T2
AMP_SDA
5.6uH
L203
EXT_SPK
BLM18SG121TN1D
L223
0.1uF
C4020
BLM18SG121TN1D
L202
+3.3V_Normal
IF_AGC_MAIN
D2-_HDMI4
MODEL_OPT_7
+1.10V_VDDC
DDC_SDA_1
1K
PHM_ON
R211
TU_SCL
USB1_DM
10uF
C4001
DDC_SDA_2
0.1uF
C4044
0.1uF
C4012
1K
R4030
NON_DVB_S
MIUVDDC
0 . 1 u F
C241
24MHz
X201
0 . 1 u F
C286
SOC_RESET
+1.5V_DDR
AVDD25_PGA
1K
DVB_T2
R208
FB_CORE
5.6uH
L205
EXT_SPK
D2+_HDMI2
+3.3V_Normal
+2.5V_Normal
FB_CORE
4 . 7 u F
10V
C200
+3.5V_SOC_RESET
10
R217
1uF
C4042
1uF
C280
1uF
C277
1uF
C253
LGE2111A-T8
IC101
S7LR2_DIVX_MS10
RXACKP
J 2
RXACKN
J 3
RXA0P
K3
RXA0N
J 1
RXA1P
K2
RXA1N
K1
RXA2P
L2
RXA2N
L3
DDCDA_DA/GPIO24
T5
DDCDA_CK/GPIO23
T4
HOTPLUGA/GPIO19
V5
HOTPLUGB/GPIO20
R5
RXCCKP
AE9
RXCCKN
AC9
RXC0P
AC10
RXC0N
AD9
RXC1P
AC11
RXC1N
AD10
RXC2P
AE11
RXC2N
AD11
DDCDC_DA/GPIO28
AE8
DDCDC_CK/GPIO27
AD8
HOTPLUGC/GPIO21
AC8
RXDCKP
F2
RXDCKN
F3
RXD0P
G3
RXD0N
F1
RXD1P
G2
RXD1N
G1
RXD2P
H2
RXD2N
H3
DDCDD_DA/GPIO30
R6
DDCDD_CK/GPIO29
U6
HOTPLUGD/GPIO22
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
CVBS4
Y5
CVBS5
AA4
CVBSOUT0
Y6
CVBSOUT1
AA1
VCOM
AB4
VIFP
AC4
VIFM
AD3
I P
AC3
IM
AE3
SIFP
AD4
SIFM
AC5
IF_AGC
AD2
RF_AGC
AE2
I2C_SCKM1/GPIO75
AE6
I2C_SDAM1/GPIO76
AD6
XIN
AD1
XOUT
AC1
SPDIF_IN/GPIO152
D7
SPDIF_OUT/GPIO153
D6
USB0_DM
E3
USB0_DP
E2
USB1_DM
AC12
USB1_DP
AE12
I2S_IN_BCK/GPIO150
C8
I2S_IN_SD/GPIO151
D8
I2S_IN_WS/GPIO149
D9
I2S_OUT_BCK/GPIO156
B10
I2S_OUT_MCK/GPIO154
C9
I2S_OUT_SD/GPIO157
B9
I2S_OUT_WS/GPIO155
C10
AUL0
AB9
AUR0
AA11
AUL1
Y9
AUR1
AA9
AUL2
AA7
AUR2
AB8
AUL3
Y8
AUR3
Y10
AUL4
AC7
AUR4
AD7
AUOUTL0
W6
AUOUTL2
V6
AUOUTL3
V4
AUOUTR0
Y7
AUOUTR2
W5
AUOUTR3
U5
AUVRM
AD5
AUVAG
AE5
AUVRP
AC6
EARPHONE_OUTL
AA6
EARPHONE_OUTR
AB6
ET_RXD[0]/RP/GPIO60
C6
ET_TXD[0]/TP/GPIO57
C5
ET_RXD[1]/RN/GPIO63
A6
ET_TXD[1]/LED1/GPIO56
C4
ET_TX_CLK/TN/GPIO59
B5
ET_TX_EN/GPIO58
C3
ET_MDC/GPIO61
A3
ET_MDIO/GPIO62
B3
ET_COL/LED0/GPIO55
B4
IRIN/GPIO4
N4
ARC0
T6
HWRESET
N5
LGE2111A-T8
IC101
S7LR2_DIVX_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
AVDD1P0
P10
FB_CORE
P19
AVDDL_MOD
R16
AVDD10_LAN
L11
DVDD_DDR
M14
AVDD2P5_ADC_1
W9
AVDD2P5_ADC_2
W10
AVDD2P5_ADC_3
W11
AVDD25_REF
W12
AVDD25_LAN
Y17
AVDD_MOD_1
V18
AVDD_MOD_2
U19
AVDD25_PGA
W14
AVSS_PGA
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
J 1 7
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
J 9
GND_51
J 1 0
GND_52
J 1 1
GND_53
J 1 2
GND_54
J 1 3
GND_55
J 1 4
GND_56
J 1 5
GND_57
J 1 6
GND_58
J 1 8
GND_59
J 1 9
GND_60
J 2 5
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
J 8
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
68pF
C4068-*1
HALF_NIM/ASIA
68pF
C4069-*1
HALF_NIM/ASIA
EXT_AMP_L
EXT_AMP_R
AV_COMP_PC_L_IN
AV_COMP_PC_R_IN
4 . 7 u F
10V
10V
OPT
C211
4 . 7 u F
10V
10V
OPT
C212
510
R4024
DSUB_R+
DSUB_G+
DSUB_VSYNC
0 . 0 4 7 u F
C205
0 . 0 4 7 u F
C207
1000pF
C210
33
R228
10K
R4026
0 . 0 4 7 u F
C206
68
R229
2.4K
R4023
68
R233
68
R231
0 . 0 4 7 u F
C209
33
R232
DSUB_HSYNC
0 . 0 4 7 u F
C208
0 . 0 4 7 u F
C204
510
R4025
DSUB_B+
33
R230
USB2_DM
USB2_DP
100
R213
SPDIF_OUT
100
RF_SW_BR_OPT
R203
RF_SWITCH_CTL
100
R205
SWICH
JTP-1127WEM
SW200
SWICH
12
4
3
+3.5V_ST
470
RESET_IC_SOC_RESET
R215
4 . 7 u F
10V
RESET_IC_SOC_RESET
C202
POWER_DET_RESET
2 . 2 u F
C247
2 . 2 u F
C246
COMP2_Y+/AV_CVBS_IN
33
R239
COMPONENT
0 . 0 4 7 u F
C221
1000pF
C224
COMPONENT
1000pF
C217
OPT
COMP2_Pb+
0 . 0 4 7 u F
C219
0 . 0 4 7 u F
C222
COMPONENT
33
R237
COMPONENT
0 . 0 4 7 u F
C218
COMPONENT
0 . 0 4 7 u F
C223
COMP2_Pr+
COMP2_Y+/AV_CVBS_IN
68
R240
68
R242
33
R241
COMPONENT
0 . 0 4 7 u F
C220
COMPONENT
68
R238
COMP2_DET
POWER,IN/OUT,H/W OPT
2
MODEL OPTION
NON_3D
AB3
PIN NO.
MODEL_OPT_3
DVB_T2
DTV_IF
Close to MSTAR
MODEL_OPT_7
AVDD_DDR1:55mA
DVB_S
U23
OLED
PHM_ON
MODEL_OPT_1
DDR3 1.5V
PIN NAME
SOC_RESET
I 2 S _ I / F
3D
TUNER_I2C
NON_DVB_T2
HDMI
AVDD25_PGA:13mA
NON_DVB_S
AB2
120HZ
AUDIO IN
LOW
HIGH
CVBS In/OUT
ANALOG SIF
Close to MSTAR
B8
A8
PHM_OFF
Close to MSTAR
MODEL_OPT_2
F4
N o r m a l 2 . 5 V
MODEL_OPT_6
STby 3.5V
MODEL_OPT_5
NON_OLED
NON_120HZ
C l o s e t o I C w i t h w i d t h t r a c e
MODEL OPTION
T25
T24
FHD
N o r m a l P o w e r 3 . 3 V
HD
MODEL_OPT_4
MODEL_OPT_0
AVDD_NODIE:7.362mA
Close to MSTAR
NonOS:ErrorOut
OS:NON_DualStream
OS:DualStream
NonOS:NON_ErrorOut
* D u a l S t r e a m i s o n l y K o r e a 3 D s p e c
EXT SPEAKER
DSUB
LA2AW
2 0 1 2 . 0 9 . 1 1
AVDD_DDR0:55mA
SIDE COMP
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.
100pF
50V
C436
+3.5V_ST
10uF
25V
C431
10K
R426
+3.5V_ST
+24V
22uF
10V
C432
10uF
10V
10V
C425
10K
R454
THERMAL
AP7173-SPG-13 HF(DIODES)
IC404
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[ E P ]
0 . 1 u F
16V
16V
C438
NCP803SN293
IC405
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
POWER_DET
POWER_ON/OFF_1
1/16W 330K 5%
R433
PANEL_VCC
10K
R429
NCP803SN293
IC406
PD_+24V_PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
0 . 1 u F
16V
C426
100
R462
PD_+24V
1/16W
27K
1%
R438
10uF
10V
C418
+1.10V_VDDC
L408
SS
0 . 1 u F
16V
C443
NON_CI_CAP
+3.5V_ST
+1.5V_DDR
+12V
0 . 1 u F
16V
C446
+3.3V_Normal
0 . 1 u F
16V
C440
100K
R460
PD_+24V
33K
R435
BLM18PG121SN1D
L410
22uF
10V
C434
PANEL_CTL
001:AL22
10uF
10V
10V
C416
560pF
50V
50V
C433
0 . 1 u F
16V
16V
C417
NON_CI_CAP
+3.5V_ST
+3.5V_ST
0 . 1 u F
16V
16V
C419
NON_CI_CAP
10K
R430
AO3407A
Q406
G
D
S
1/16W
4.7K
1%
R437
15K
R432
0 . 1 u F
16V
16V
C442
T J 3 9 4 0 S - 2 . 5 V - 3 L
IC402
LDO_OLD
1
GND
2
VOUT
3
VIN
0 . 1 u F
16V
16V
C430
10K
R452
OPT
THERMAL
TPS54319TRE
IC403
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
100K
R457
0 . 1 u F
16V
C421
NON_CI_CAP
+3.3V_Normal
0 . 1 u F
C445
5.6K
R436
+12V
+3.3V_Normal
10K
R425
1/16W
56K
1%
R439
10K
R465
RESET_IC_SOC_RESET
+2.5V_Normal
0 . 1 u F
16V
16V
C441
PD_+24V
+3.3V_Normal
22K
R458
10K
R456
1/16W
4.3K
1%
R440
NR8040T3R6N
3.6uH
L411
APX803D29
PWR_DET_ON_DIODES
I C 4 0 5 - * 1
1
GND
3
VCC
2
RESET
APX803D29
PD_+24V_PWR_DET_DIODES
I C 4 0 6 - * 1
1
GND
3
VCC
2
RESET
0 . 0 1 u F
50V
C423
0 . 0 1 u F
3300pF
50V
C429
3300pF
C427
1.5K
1%
R444
PD_+24V
2.7K
1%
PD_+12V
R450
0
5%
PD_+3.5V
R455
1
R434
8.2K
1%
R443
PD_+24V
0 . 0 1 5 u F
50V
50V
C420
0 . 0 1 5 u F
MMBT3904(NXP)
Q407
E
B
C
MMBT3904(NXP)
Q405
E
B
C
0 . 3 3 u F
16V
C422
1.2K
1%
R451
PD_+12V
0 . 1 u F
25V
25V
C424
0 . 1 u F
25V
25V
C437
NON_CI_CAP
0 . 1 u F
25V
C435
OPT
10uF
25V
25V
OPT
C428
5.1K
1%
R451-*1
PD_KR_42_LIPS
CIS21J121
120
L409
SS
BLM18SG700TN1D
L412
100
1%
R455-*1
PD_KR_42_LIPS
4.7K
R441-*1
PANEL_DISCHARGE_RES_4.7K
4.7K
R442-*1
PANEL_DISCHARGE_RES_4.7K
DMP2130L
Q408-*1
Q408-*1
FET_2.5V_DIODE
G
D
S
5.6K
R441
PANEL_DISCHARGE_RES_5.6K
5.6K
R442
PANEL_DISCHARGE_RES_5.6K
22uF
10V
10V
C448
5.1K
5.1K_PANEL_DISCHARGE
R441-*2
5.1K
5.1K_PANEL_DISCHARGE
R442-*2
10K
R413
PWM_DIM
PWM1
MLB-201209-0120P-N2
L405
+24V
10K
R418
100
T120
R420
+3.5V_ST
SMAW200-H18S1
P401
14
12V
9
24V
4
PDIM#1
18
GND
13
12V
8
GND
3
3.5V
17
GND
12
GND
7
GND
2
DRV ON
16
N.C
11
GND
6
PDIM#2
1
PWR ON
15
12V
10
24V
5
3.5V
19
.
+3.5V_ST
10K
OPT
R406
10K
R417
100
R415
MMBT3904(NXP)
Q401
E
B
C
MLB-201209-0120P-N2
L413
CIC21J501NE
L402
L402
SS
MMBT3904(NXP)
Q403
E
B
C
4.7K
R410
1K
R416
CIC21J501NE
L403
SS
+3.5V_ST
+12V
0 . 1 u F
16V
C403
10K
R409
0 . 1 u F
16V
C407
+3.3V_Normal
INV_CTL
0 . 1 u F
50V
C405
RL_ON
+3.5V_ST
33K
OPT
R414
3.9K
OPT
R419
MMBT3906(NXP)
Q402
1
2
3
10K
R407
68uF
35V
35V
C401
OPT
22uF
16V
16V
C411
3300pF
50V
50V
C409
33K
1%
R404
+5V_Normal
10K
R403
22uF
16V
16V
OPT
C402
+3.3V_Normal
+5V_Normal
2K
R411
27K
1%
R401
100pF
50V
OPT
C408
100K
R405
USB1_OCD
0 . 1 u F
16V
16V
OPT
C413
4 . 7 u F 10V
C406
3.6uH
L404
+5V_USB_1
11K 1%
R402
CIC21J501NE
L401
SS
+12V
10uF
16V
16V
C404
20K
R412
0 . 0 4 7 u F
25V
25V
C410
4.7K
OPT
R421
10uF 10V
CAP_10uF_X7R
C414-*1
330pF
50V
C412
USB1_CTL
10uF
CAP_10uF_X5R
10V
85C
C414
THERMAL
TPS65281RGV
IC401
3
ROSC
2
COMP
4
RLIM
1
SS
EN_SW
5
FAULT
6
AGND
7
SW_OUT
8
SW_IN
9
FB
10
LX
11
BST
12
PGND
13
VIN
14
V7V
15
EN
16
17
[ E P ]
0
R408
5V
D404
5V OPT
D401
5V
OPT
OPT
D402
5V
OPT
OPT
D403
5V
OPT
OPT
D405
POWER_DET_RESET
300
R461
RESET_IC_SOC_RESET
T J 1 1 1 8 S - 2 . 5
I C 4 0 2 - * 1
LDO_NEW
1
GND
2
OUT
3
IN
BLM18PG121SN1D
L414
AO3435
Q408
FET_2.5V_AOS
G
D
S
2.2K
R459
2 . 2 u F
10V
10V
C444
100
R461-*1
+3.5V_SOC_RESET
22uF
10V
C439
MLB-201209-0120P-N2
L409-*1
MAG
CB2012PK501T
L401-*1
SAMHWA
CB2012PK501T
L402-*1
SAMHWA
CB2012PK501T
SAMHWA
L403-*1
CB2012PK501T
L408-*1
SAMHWA
R2
+1.5V_DDR
New item
Power_DET
+ 2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
+ 1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
Vd=550mV
+2.5V/+1.8V
R1
+3.3V_Normal
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
Vout=0.827*(1+R1/R2)=1.225V
R1
R2
$ 0 . 1 6 5
S 7 L R c o r e 1 . 2 V v o l t
+ 3 . 5 V _ S T - - > 3 . 3 7 5 V - - > 3 . 4 6 V
780 mA
Max 1000mA
+ 1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
300 mA
1.5A
PANEL_POWER
3A
+ 2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
POWER
4
FROM LIPS & POWER B/D
LA2AW
2 0 1 2 . 0 9 . 1 1
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
CHANGE TO
10UF/10V/X5R
R1
+5V_Normal
&
+5V_USB_1
&
+5V_USB_1
CHANGE TO
16V/X5R
R2
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