Circuit Diagram - LG -E415g Service Manual

7. CIRCUIT DIAGRAM

ANT1003 ANT1001 ANT1005
ANT1002
1
1 1 1
2
HJ-ICT-06Y HJ-ICT-06Y
HJ-ICT-06Y HJ-ICT-06Y
C1001 100p
C1007
C1009
C1008 1 1
ANT
100p
100p
100p
C1004
C1010 C1003
C1127
DNI
100p DNI
0.5p
1
GND1
2
GND2
3
GND3
4
GND4
5
GND5
6
GND6
7 U1001
GND7
8
GND8
29
PGND1
30
PGND2
31
PGND3
32
PGND4
33
PGND5
34
PGND6
R1011
DCS_PCS_TX
1 2
47
2mm
DCS(1710-1785 MHz)
7dB
PCS(1850-1910 MHz)
1 2
C1118 2
1n
1
R1006
GSM850_GSM900_TX
75
GSM850(824-849MHz)
GSM900(880-915MHz) 11dB
1 2
C1125
DNI
ANTENNA SWITCH MODULE LOGIC(SKY77584)
ANT_SEL0 ANT_SEL1
STAND-BY LOW LOW
GTX_LB LOW LOW
GTX_HB LOW HIGH
GRX_LB HIGH LOW
GRX_HB HIGH HIGH
WTRX_HB HIGH LOW
WTRX_LB LOW HIGH
WCDMA RX 2100 LNA Circuit
VDD_RX
L1017
1.2n
FL1003
C1136 1 3
RX_WCDMA_2100_LNA_OUT
IN OUT
4
0
_OUT
G1 G3
C1086
2 5
DNI
2140MHz
C1137
RX_WCDMA_1900_LNA_OUT
DNI
LNA for the GPS
U1004
PGND
NC1
ANT1006 ANT1004 C1098 100p FL1005
L1040 10n
VDD
1 4
IN OUT RF_IN
G1 G2 G3
RF_OUT
2 3 5
NC2
L1026 L1027 L1041
L1028 C1099
VSD
DNI DNI 10n
100p DNI
LGE Internal Use Only
SW1000
C1002 6.8p
2
COMMON
1
G3 G4
L1001
C1005
3 4
15n
DNI
2
W850_W900_RTX
FL1002
W1900_W2100_RTX
C1022 1.2n L1003
1 9
DNI
GSM1800/1900_IN GSM1900_Bal_OUT2
C1024
44 2 8
PGND16 GND1 GSM1900_Bal_OUT1
43
PGND15
42 3 7
PGND14 GND2 GSM1800_Bal_OUT2
41 L1004
PGND13 C1028 7.5n
4 6
4.7n
GND3 GSM1800_Bal_OUT1
L1006
DNI
22
GND10
21
TRX3
20
TRX2
19
TRX1
18
VRAMP
17
TXEN
16 FL1001
MODE
15
GND9
C1046 L1007
100p DNI
1 9
GSM850/900_IN GSM900_Bal_OUT2
2 8
40
PGND12 GND1 GSM900_Bal_OUT1
39
PGND11
1 3 7
38
PGND10 GND2 GSM850_Bal_OUT2
L1009
8.2n
4 6
GND3 GSM850_Bal_OUT1 L1012
2 10n
VBAT
R1002
GSM_PA_RAMP
2.2K
C1047
2
39p
2 C1039 C1038 1
100p
10u
1
GSM_PA_EN
ANT_SEL0
GSM QUAD
C1126 2 C1123
DNI
ANT_SEL1 DNI
1
ANT_SEL2
C1124
DNI
ANT_SEL2 TX_EN
LOW LOW
HIGH HIGH
HIGH HIGH
LOW LOW
LOW LOW
HIGH LOW
W1900_W2100_RTX
LOW LOW
WB2100_MIX_INP
WCDMA DUAL
W2100 RX(2110 - 2170 MHz)
DNI
C1083
WB2100_MIX_INM
Near To LNA
L1030
R1021
VREG_RF_2.7V_RTR
1.5n 12
C1105
C1106
18p 0.1u
FL1009
C1129 4.7p 1 4
IN OUT
G1 G2 G3
2 3 5 L1032
GPS_IN W850_W900_RTX
3.3n
C1113 C1112
C1114
DNI
DNI
R1023
GPS_MODE
12
C1115
6.8p
M7
TX_ON
RF_ON
TCXO_RTR_19.2MHZ C1
TCXO
M3
RTR6285_SSBI
SBDT
L1037 1.5n A10
GSM850_GSM900_TX
LB_RF_OUT1
B9
L1038 3.3n
W850_W900_TX_OUT
LB_RF_OUT2
A9
DCS_PCS_TX C1018 33p
HB_RF_OUT1
A8
HB_RF_OUT2
A7
W1900_W2100_TX_OUT L1039 33p
HB_RF_OUT3
C1013 1.2n
N9
RX_WCDMA_900_P
RX_PCS_P WPRXLBP
M9
RX_WCDMA_900_M
WPRXLBM
N10
WPRXHBP
L1002
N11
PCS(1930-1990 MHz)
WPRXHBM
2n
1.2n H13
WDRXLB
RX_PCS_M
J12
WDRXHB1
RX_DCS_P J13
WDRXHB2
C13
RX_GSM_850_P
GCELL_INP
B13
L1005 DCS(1805-1880 MHz)
RX_GSM_850_M
15n GCELL_INN
C12
RX_GSM_900_P EGSM_INP
RX_DCS_M
B12
RX_GSM_900_M
EGSM_INN
C1040 7.5n
E13
RX_DCS_P
DCS_INP
D13
RX_DCS_M
C1041 10p DCS_INN
RX_GSM_900_P
E12
RX_PCS_P
GPCS_INP
D12
RX_PCS_M 2
GSM(925-960 MHz) GPCS_INN
L1008
15n 2
L1010 100p
G13
GPS_IN 1
GPS_IN
A12
C1048 10p C1054 33p
PDET_IN 1 PDET_IN
RX_GSM_900_M
R1004 12K A2
L1011 TX_RBIAS
1 2
L1035 8.2n 1%
6.8n
RX_GSM_850_P C1056 DNI
K13
RX_WCDMA_HB
WPRXSE1
L13
WPRXSE2
L1013 GSM(869-894 MHz) L1014 100p
DNI
L1036 8.2n Near To RTR
RX_GSM_850_M
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_1900_LNA_OUT
C1073
2
22p
1
L1015 2.4n
RX_WCDMA_HB
L1016
C1076
1.8p 12n
VBAT
FL1006
6 1
ANT RX
L1022
3
TX
L1020
L1021
3.3p
1.2p 1.8n 2 9
GND1 GND6
C1089
4 8 C1091
GND2 GND5 10n
5 7 DNI
GND3 GND4
Band I
R1017
PDET_IN
51
R1018
8dB
110
VBAT
C1096
2.2u
L1029 10n
RX_WCDMA_900_P
C1104 C1103
DNI
12n L1031 10n
RX_WCDMA_900_M
FL1007
C1111 33p
6 1
ANT RX1
8
RX2
L1033 3
TX
DNI
2
8.2n
GND1
4 9
C1116 C1117
GND2 GND5
5 7
GND3 GND4
2.7p DNI
Band V
- 126 -
C1006
150p
A4
TX_IP
B5
TX_IN C1012
B3
TX_QP 150p
B4
2
TX_QN
2
E1 C1016 10n
1
VTUNE1 C1017 10n
N5
VTUNE2 1
G1 C1019 1n
VTUNE_GPS
C1020
J1 150p
RX0_Q_P
PRX_QP
J2
RX0_Q_M
PRX_QN
K2
RX0_I_P
PRX_IP C1025
K1
RX0_I_M 150p
PRX_IN
L1
RX1_Q_P
DRX_QP
L2
RX1_Q_M
DRX_QN
M1
RX1_I_P
DRX_IP
M2
RX1_I_M
DRX_IN
N2
NC
2
U1000
A3
DAC_REF
DAC_IREF
1
A11
VDDA1_1
D1
VDDA1_2
D2
VDDA1_3
F1
VDDA1_4
H1
VDDA1_5
H2
VDDA1_6
A5
VDDA2_1
A6
VDDA2_2
B1
VDDA2_3
B6
VDDA2_4
B10
VDDA2_5
F2
VDDA2_6
F13
VDDA2_7
G2
VDDA2_8
L12
VDDA2_9
M6
VDDA2_10
N3
VDDA2_11
N6
VDDA2_12
N7
VDDA2_13
2 2
VREG_RF_2.7V_RTR
1 1
2
1
VREG_MSME_1.8V
C1074 C1075
2
100p 0.1u
1
C1080
C1081 C1082
U1002
Close to pin1
2.2u 330p
11 330p
PGND
FL1004
10 1 C1131 1.2n
VCC2 VCC1
9 2 1
RFOUT RFIN IN
8 3 G1 G2 G3
3G_PAM_MODE
CPL_IN VMODE_1
7 4 2
PA_R0
GND VMODE_0
6 5 PA_ON0
CPL_OUT VEN C1090
DNI
C1093 C1094
100p 100p
R1019
110
C1095
C1097
680p
680p
R1020
DNI
U1003
11
PGND C1134
FL1008
10 1
VCC2 VCC1 100p
9 2 4 1
RFOUT RFIN OUT IN
8 3 G3 G2 G1
3G_PAM_MODE
CPL_IN VMODE_1
7 4 5 3 2
PA_R0
GND VMODE_0
C1107
6 5
PA_ON1
CPL_OUT VEN
DNI
C1109 C1110
100p 100p
7. CIRCUIT DIAGRAM
TX_I_P
TX_I_M
TX_Q_P
VREG_RF_2.7V_RTR
TX_Q_M
2
1
R1000 0
VREG_RF_2.7V
+2.7V
0603 R1001
0
VDD_RX
VREG_SMPS_2.1V
VREG_SMPS_2.1V|VSNS_RF_SMPS
4 C1132
W1900_W2100_TX_OUT
OUT
10
3 5
C1133
R1027
DNI
100
C1135
100p
W850_W900_TX_OUT
C1108
DNI
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