Circuit Diagram - LG -E410 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 C1007 SW1000
C1001
C1009 C1008 1
1 ANT
100p 100p 3.3n
12p
C1004
C1010 C1003
C1127
DNI
100p DNI
1.2p
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
110 2mm
DCS(1710-1785 MHz)
10dB
PCS(1850-1910 MHz)
1 2
C1118 2
1n
1
GSM850_GSM900_TX R1006
130
GSM850(824-849MHz)
GSM900(880-915MHz) 13dB
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
VDD_RX WCDMA RX 2100 LNA Circuit
L1017
1.2n
FL1003
C1136
RX_WCDMA_2100_LNA_OUT 1 3
IN OUT
4
0
_OUT
G1 G3
C1086
2 5
DNI
2140MHz
C1137
RX_WCDMA_1900_LNA_OUT
DNI
LNA for the GPS
U1004
7
PGND
1
NC1
FL1005
ANT1006 ANT1004
C1098 L1040 10n VDD 6
1 4 2
IN OUT RF_IN
G1 G2 G3
1n 5
RF_OUT
1 1
2 3 5 3 NC2
L1028 L1026 L1027 L1041
4
VSD
DNI 100n 10n
0
1 2 2 2
LGE Internal Use Only
C1002 6.8p
2
COMMON
G3 G4
L1001
3 4 C1005
15n
DNI
W850_W900_RTX
C1013
FL1002
W1900_W2100_RTX
L1003
C1022 1.2n
1 9
DNI
GSM1800/1900_IN GSM1900_Bal_OUT2
C1024 1.2n
44 2 8
PGND16 GND1 GSM1900_Bal_OUT1
43
PGND15
42 3 7
PGND14
GND2 GSM1800_Bal_OUT2
41
L1004 C1028 7.5n
PGND13
4 6
4.7n
GND3 GSM1800_Bal_OUT1
L1006
DNI
22
GND10
21
TRX3
20
C1040
TRX2
19
TRX1
18
VRAMP
17 C1041
TXEN
FL1001
16
MODE
15
GND9 C1046 L1007
100p DNI
1 9
GSM850/900_IN GSM900_Bal_OUT2
C1048
40 2 8
PGND12 GND1 GSM900_Bal_OUT1
39
PGND11 L1035
1 3 7
38
GND2 GSM850_Bal_OUT2
PGND10 L1009
8.2n 4 6
GND3 GSM850_Bal_OUT1 L1012
2 10n
L1036
VBAT
R1002
GSM_PA_RAMP
2.2K
C1047
2
39p
1
2 C1039 C1038
100p
10u
1
GSM_PA_EN
ANT_SEL0
GSM QUAD
2 C1126 2 C1123
DNI DNI
ANT_SEL1
1
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
1 2 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 0.5p
R1023
GPS_MODE
12
C1115
6.8p
M7
TX_ON
RF_ON
C1
TCXO_RTR_19.2MHZ
TCXO
M3
RTR6285_SSBI SBDT
L1037 100p A10
GSM850_GSM900_TX
LB_RF_OUT1
L1038 3.3n B9
W850_W900_TX_OUT
LB_RF_OUT2
A9
DCS_PCS_TX C1018 33p
HB_RF_OUT1
A8
HB_RF_OUT2
L1039 33p A7
W1900_W2100_TX_OUT
HB_RF_OUT3
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
H13
WDRXLB
RX_PCS_M
J12
WDRXHB1
RX_DCS_P J13
WDRXHB2
C13
RX_GSM_850_P
GCELL_INP
L1005 DCS(1805-1880 MHz) B13
RX_GSM_850_M
GCELL_INN
15n
C12
RX_GSM_900_P
EGSM_INP
RX_DCS_M
B12
RX_GSM_900_M
EGSM_INN
7.5n
E13
RX_DCS_P DCS_INP
D13
RX_DCS_M
10p DCS_INN
RX_GSM_900_P
E12
RX_PCS_P
GPCS_INP
D12
RX_PCS_M
GSM(925-960 MHz) GPCS_INN
L1008
15n 2
L1010 100p
G13
GPS_IN 1 GPS_IN
10p C1054 33p A12
PDET_IN
PDET_IN
RX_GSM_900_M A2
L1011 R1004 12K
TX_RBIAS
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
8.2n
Near To RTR
RX_GSM_850_M
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_1900_LNA_OUT
C1073 C1074 C1075
2 2
22p 100p 0.1u
1 1
L1015
4.7p
RX_WCDMA_HB
C1076 L1016
1n 0.5p
VBAT
FL1006
6 1
ANT RX
L1022
3
TX
L1020
L1021
3.3p
1.2p 1.8n 2 9
C1089
GND1 GND6
4 8 C1091
GND2 GND5 10n
5 7 DNI
GND3 GND4
Band I
R1017
PDET_IN
51
R1019
R1018
8dB
110 110
1 2
VBAT
2 C1096 C1097
2.2u 680p
1
RX_WCDMA_900_P
c1104
C1103
8.2n
DNI
RX_WCDMA_900_M
FL1007
6 1
ANT RX1
8
RX2
3
L1033 TX
2
5.6n GND1
4 9
C1116 C1117
GND2 GND5
5 7
GND3 GND4 1.2p
DNI
Band VIII
- 126 -
TX_I_P
C1006
150p
A4
TX_IP
B5
TX_IN C1012
B3
TX_QP
150p
B4
TX_QN 2
2
C1016 10n
E1 TX_I_M
1
VTUNE1
N5 C1017 10n
TX_Q_P
VTUNE2 1
G1 C1019 1n
VTUNE_GPS
C1020
J1 150p
RX0_Q_P
PRX_QP
J2
PRX_QN RX0_Q_M
K2
RX0_I_P 2 C1025
PRX_IP
K1
RX0_I_M 150p
PRX_IN
1
L1
RX1_Q_P
DRX_QP
L2 TX_Q_M
RX1_Q_M
DRX_QN
M1
DRX_IP RX1_I_P
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_SMPS_2.1V|VSNS_RF_SMPS
VREG_MSME_1.8V
C1080
2
C1081 C1082
U1002
Close to pin1
2.2u 330p 330p
11 FL1004
1
PGND
10 1
VCC2 VCC1
9 2 C1131 1 4
RFOUT RFIN IN OUT
8 3 G1 G2 G3
3G_PAM_MODE 33
CPL_IN VMODE_1
7 4 2 3 5
PA_R0
GND VMODE_0
6 5
CPL_OUT VEN PA_ON0
C1093 C1094
100p 100p
C1095
ATTEN -> DNI
680p
R1020
12
U1003
11
PGND C1134 FL1008
C1135
10 1
VCC2 VCC1
100p 100p
9 2 1 4
RFOUT RFIN IN OUT
G1 G2 G3
8 3 3G_PAM_MODE
CPL_IN VMODE_1
7 4 2 3 5
PA_R0
GND VMODE_0 C1107
6 5
PA_ON1
CPL_OUT VEN
DNI
C1109 C1110
100p 100p
7. CIRCUIT DIAGRAM
VREG_RF_2.7V_RTR
2
1
R1000 0 VREG_RF_2.7V
+2.7V
0603
R1001
0
VDD_RX
VREG_SMPS_2.1V
C1132
W1900_W2100_TX_OUT
1.8n
C1133
DNI
W850_W900_TX_OUT
C1108
DNI
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