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VBATT
C106
C107
R104
UMTS_ANT
DCS1800_PCS1900_TX
GSM_TX
GSM_ANT_SEL1_N
GSM_ANT_SEL0_N
R105
R106
V_RF_S3_2.7V
V_RF_S3_2.7V
V_RF_S3_2.7V
V_RF_S2_2.1V
V_RF_S2_2.1V
R114
R112
RTR6280_TCXO
RX_Q_P
RX_Q_N
RX_I_N
RX_I_P
C136
C137
C131
C132
C138
C139
C135
V_RF_S2_2.1V
V_RF_S3_2.7V
VREG_MSMP_2.6V
RTR6280
C166
C152
C153
C154
C155
C100
L100
2.5G RF
TA100
26
4
VBATT
RX4
R103
5
RX3
10
6
WCDMA1
RX2
21
7
DCS|PCS_IN
PAM100
RX1
23
GSM_IN
2
MODE
27
3
BS2
RSVD
28
1
BS1
_TXEN
25
VAPC
29 GND
R107
R108
C111
C112
GSM_PA_PWR_CTL
R109
C114
R110
GSM_ANT_SEL2_N
C116
TX_I_N
C117
C118
TX_I_P
C119
TX_Q_N
C120
C121
TX_Q_P
DAC_REF
R113
C122
1
VDDA2
GCELL_INN
2
TCXO
GCELL_INP
3
VDDA1
EGSM_INN
4
VDDA1
EGSM_INP
5
VTUNE1
DCS_INN
6
VDDA1
DCS_INP
7
VDDA2
GPCS_INN
8
U100
NC
GPCS_INP
9
NC
10
NC
11
PRX_QP
12
PRX_QN
13
PRX_IN
14
PRX_IP
WPRXSE1
15
NC
16
NC
WPRXSE2
17
NC
WPRXSE1_OUT
C141
C140
C142
R120
C146
C145
R121
C162
C167
C156
C157
C158
C159
C160
C161
ANT100
RFS100
R100
C101
C102
L101
C104
F100
3
OUT
1
IN
4
OUT
G
G
L103
2
5
F101
C108
9
L106
BAL1
1
IN1
8
OUT1
C109
BAL2
7
4
IN2
6
OUT2
G
G
G
G
C163
2
3
5 10
C115
UMTS_TX
V_RF_S2_2.1V
V_RF_S3_2.7V
DCS1800_PCS1900_TX
GSM_TX
PWR_DET
C124
C123
51
C125
C126
50
C127
49
GSM_RX_N
48
GSM_RX_P
47
DCS_RX_N
46
DCS_RX_P
45
PCS_RX_N
44
PCS_RX_P
43
NC
42
NC
41
NC
40
NC
39
NC
38
37
NC
36
UMTS_RX
35
C143
C133
C134
F102
C147
C148
3
C149
OUT
1
IN
L111
4
OUT
G
G
2
5
L110
L112
R123
C150
C151
10-31
Fl o w Chart of Troubleshooting
ANT102
C103
GSM_RX_N
L102
C105
GSM_RX_P
C164
PCS_RX_P
L105
C165
PCS_RX_N
C110
DCS_RX_P
L109
C113
DCS_RX_N
TCXO_19.2MHz
VREG_TCXO_2.8V
C128
C130
4
3
VCC
OUT
OSC100
VCON
GND
1
2
TRK_LO_ADJ
R119
C144
UMTS_RXM_2100
UMTS_RXP_2100
C129
RTR6280_TCXO
TCXO
R118
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