Circuit Diagram - LG -E405 Service Manual

7. CIRCUIT DIAGRAM

ANT1002
SW1000
L1000 2.2n
1
ANT
1
3
HJ-ICT-06Y G3
C1003 C1004
ANT1001
1p DNI
1
HJ-ICT-06Y
C1007
100p
2mm
GND
7
VBAT VBATT
18
ANT_SEL2
GPCTRL2
17
C1038 ANT_SEL1 GPCTRL1
C1039
19
ANT_SEL0
22u GPCTRL0
47p
20
ANT_SEL3 TX_EN
21
VRAMP
22
PGND1
23
PGND2
24
GND2
8
R1002
GSM_PA_RAMP
2.2K
C1047
39p
R1006
GSM_TX
75
GSM850(824-849MHz)
11dB
GSM900(880-915MHz)
R1011
DCS_PCS_TX
47
DCS(1710-1785 MHz)
7dB
PCS(1850-1910 MHz)
WCDMA RX 2100 LNA Circuit
VDD_RX
L1017
2n
FL1003
R1015 1
RX_WCDMA_2100_LNA_OUT IN OUT
0
_OUT
G1 G3
C1086 2 5 2140MHz
8.2n
R1016
RX_WCDMA_1900_LNA_OUT
DNI
ANT1004 FL1005
3
1575.42 MHz G3
1 1 4
IN OUT
G1 G2
HJ-ICT-06Y 2 5
L1026
L1028 L1027 C1099
C1100
100n DNI
100p 4.7n DNI
GND VDD
R1023
3 5
GPS_MODE S_D FIL_OUT
12 2 4
U1004
C1115
6.8p
LGE Internal Use Only
C1002 1.2n
2
COMMON
4
G4
C1005
L1001
DNI
100n
L1003
FL1000
DNI
C1022
1 8
1842_5/1960MHz 1960MHz_1
9
33p 1960MHz_2
4 6
GND5 1842_5MHz_1
2 7
GND1 1842_5MHz_2
3
L1004 GND2
5 10
2.7n L1006
GND3 GND4
DNI
WCDMA_900_RTX
TRX2
13
TRX1 WCDMA_2100_RTX
12
RX2
11
RX1
10
GND7
U1001
16
GND4
6
GND3
9
GND8
2
GND1
1
L1007
FL1001 DNI
C1046 100p 1 8
881_5/942_5MHz 942_5MHz_1
9
942_5MHz_2
4 6
L1009
GND5 881_5MHz_1
2 7
8.2n
GND1 881_5MHz_2
3
C1049 GND2
L1012
5 10
56p GND3 GND4
10n
C1055
22p
GSM QUAD
WCDMA DUAL
L1018
WB2100_MIX_INP
1.8n
3
W2100 RX(2110 - 2170 MHz)
WCDMA_2100_RTX
DNI
4
C1083
L1024
WB2100_MIX_INM
1.8n
LNA for the GPS
Near To LNA
L1030
R1021
VREG_RF_2.7V
12
4.7n
C1105 C1106
18p 0.1u
L1032
WCDMA_900_RTX
GPS_IN
3.3n
C1113
C1114
DNI
DNI
M7
TX_ON
RF_ON
C1
TCXO_RTR_19.2MHZ TCXO
C1013 5.6p M3
RTR6285_SSBI
SBDT
RX_PCS_M
C1014 100p A10
GSM_TX
LB_RF_OUT1
C1015 100p B9
L1002 WCDMA_850_900_TX_OUT
LB_RF_OUT2
PCS(1930-1990 MHz)
3.3n
C1018 33p A9
DCS_PCS_TX
HB_RF_OUT1
A8
C1024 5.6p
HB_RF_OUT2
RX_PCS_P
C1023 8.2p A7
WCDMA_1900_2100_TX_OUT
HB_RF_OUT3
RX_DCS_M
C1026 56p N9
RX_WCDMA_900_P
C1028 2.7p WPRXLBP
C1027 56p M9
RX_WCDMA_900_M WPRXLBM
N10
L1005 WPRXHBP
N11
4.7n WPRXHBM
DCS(1805-1880 MHz)
H13
WDRXLB
C1040 2.7p
RX_DCS_P
J12
WDRXHB1
J13
WDRXHB2
C13
RX_GSM_850_P
GCELL_INP
B13
C1041 2.2p RX_GSM_850_M GCELL_INN
RX_GSM_900_M
C12
RX_GSM_900_P EGSM_INP
B12
RX_GSM_900_M
EGSM_INN
L1008
18n E13
RX_DCS_P
GSM(925-960 MHz) DCS_INP
D13
RX_DCS_M
DCS_INN
C1048 2.2p
RX_GSM_900_P
E12
RX_PCS_P
GPCS_INP
D12
RX_PCS_M GPCS_INN
RX_GSM_850_M
C1050 8.2n L1010 100p
G13
GPS_IN GPS_IN
C1054 33p A12
L1013 PDET_IN
PDET_IN
A2
DNI L1011 R1004 12K TX_RBIAS
GSM(869-894 MHz)
1%
6.8n
L1014 DNI
K13
C1057 8.2n RX_WCDMA_HB
WPRXSE1
C1056 100p
L13
RX_GSM_850_P WPRXSE2
Near To RTR
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_1900_LNA_OUT
L1015
2n
L1016
C1076
3.6n
DNI
FL1002
C1085
6 1
ANT RX
3.9p
3
TX
L1020
L1021
DNI 3n 2 7
GND1 GND4
4 8 C1091
C1089
GND2 GND5
5 9 3.9n DNI
GND3 GND6
1950MHz, 2140MHz
Band I
R1017
PDET_IN
R1018
8dB
110
VBAT
3.3p
RX_WCDMA_900_P
L1029
C1103
C1104
DNI
6.8n
3.3p
FL1007 RX_WCDMA_900_M
10p L1031
6 1
ANT RX1
8
RX2
C1111
C1112
5.6n
3
TX
DNI
2
GND1
L1033 4 9
GND2 GND5 C1116 DNI
5 7
GND3 GND4 0.5p
C1117
Band V
- 120 -
A4
TX_IP
B5
TX_IN
B3
TX_QP
B4
TX_QN
C1016 10n
E1
VTUNE1
N5 C1017 10n
VTUNE2
C1019 1n
G1
VTUNE_GPS
J1
PRX_QP RX0_Q_P
J2
PRX_QN RX0_Q_M
K2
PRX_IP RX0_I_P
K1
RX0_I_M
PRX_IN
L1
DRX_QP RX1_Q_P
L2
DRX_QN RX1_Q_M
M1
RX1_I_P
DRX_IP
M2
DRX_IN RX1_I_M
N2
U1000 NC
A3
DAC_IREF DAC_REF
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
VREG_RF_2.7V_RTR
VREG_MSME_1.8V
C1073 C1074 C1075
22p 0.1u
100p
RX_WCDMA_HB
VBAT
C1080
C1081 C1082
U1002
Close to pin1
330p
2.2u 330p
11
PGND
10 1 FL1004
VCC2 VCC1
9 2
4
RFOUT RFIN
OUT
8 3 G3
ISO NC
7 4
5
GND VMODE PA_R0
6 5
3.9n
CPL VEN PA_ON0
C1090
C1093 C1094
100p 100p
51
R1019
110
C1095
C1096 C1097
680p
2.2u 680p
U1003
11
PGND
10 1
VCC2 VCC1
9 2 R1020
RFOUT RFIN
8 3
12
ISO NC
7 4
GND VMODE PA_R0
6 5 C1107
CPL VEN PA_ON1
2p
C1109 C1110
100p 100p
Tx SAW filter is deleted.12/01/02
7. CIRCUIT DIAGRAM
TX_I_P
C1006
150p
C1012
150p
TX_I_M
TX_Q_P
C1020
150p
C1025
150p
VREG_RF_2.7V_RTR
TX_Q_M
C1033
4.7u
VREG_RF_2.7V
R1000 0
+2.7V
0603 R1001
VDD_RX
0
VREG_SMPS_2.1V
VREG_SMPS_2.1V|VSNS_RF_SMPS
1950MHz
1
IN WCDMA_1900_2100_TX_OUT
G2 G1
3 2
3.3n
C1088
L1102 5.6n
WCDMA_850_900_TX_OUT
C1108
DNI
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