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ANT102
R102
L104
0.75p
+2.75V
VREG_SYNTH
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
WCDMA
VDD_RX
C101
C102
0.1u
100p
L126
2.2nH
C111
RX_WCDMA_1900_LNA_OUT
33p
L131
WCDMA RX 1900 LNA Circuit
VDD_RX
C123
C124
0.1u
100p
L137
2.2nH
C132
RX_WCDMA_2100_LNA_OUT
WCDMA RX 2100 LNA Circuit
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
KMS-518
G1
A
C
G2
SW101
0
C4
0
C5
C11
L103
0.75p
100nH
L109
15nH
C34
C35
0.1u
33p
SFSY0034601
FL110
C103
C104
SAFEB1G96FL0F00
33p
33p
2
3
C112
G1
O1
W1900 RX(1930 - 1990 MHz)
1
L133
IN
G2
O2
33p
4.7nH
5
4
NA
C113
C114
33p
33p
TP4
SFSY0028201
FL113
C126
C127
33p
3.3p
SAFEB2G14FB0F00
5
4
L142
33p
G2
O2
L140
IN
W2100 RX(2110 - 2170 MHz)
2.7nH
1
2.7nH
G1
O1
2
3
C135
DNI
C138
C139
33p
3.3p
4. TROUBLE SHOOTING
33p
TP1
FL102
D5015
PCS_RX1
PCS_RX2
2
ANT
PCN_RX1
PCN_RX2
1
GND1
EGSM_RX1
8
GND2
EGSM_RX2
10
GND3
23
GND4
GSM850_RX1
24
GND5
GSM850_RX2
WCDMA_2100
WCDMA_850
WCDMA_1900
PCN_PCS_TX
GSM850_EGSM_TX
33p
C89
C90
33p
C93
DNI
Rev.C
WB1900_MIX_INM
L129
C110
3.3nH
33p
L130
NA
WB1900_MIX_INP
WB2100_MIX_INP
C130
L141
33p
2.2nH
C136
SDMY0001501
DNI
WB2100_MIX_INM
- 93 -
18
19
16
17
14
15
12
13
20
21
TP2
22
9
11
W850 TX(824 - 849 MHz)
FL107
B7683
ANT
TX
C91
2.7p
RX1
RX_WCDMA_850_P
RX2
GND1
L120
L121
GND2
GND5
NA
10nH
GND3
GND4
C94
2.7p
RX_WCDMA_850_M
SDDY0004701
W850 RX(869 - 894 MHz)
Band V
W1900 TX(1850 - 1910 MHz)
FL109
ACMD-7402-TR1G
G1
G2
TP3
ANT
G3
SDPY0002902
G4
Band II
G5
G6
G7
C116
C115
RX_WCDMA_1900
33p
33p
L134
1.8nH
Rev.C
FL112
B7684
GND3
GND6
GND2
GND5
GND1
GND4
W2100 TX(1920 - 1980 MHz)
RX_OUT
ANT
TX_IN
L143
C134
RX_WCDMA_2100
4.7nH
1p
Band I
C137
DNI
LGE Internal Use Only
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Troubleshooting
