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L101
3
3
2
2
1
1
L103
C141
ANT100
DPCS_TX_OUT
GSM_TX_OUT
GSM_ANT_SEL0_N
GSM_ANT_SEL1_N
GSM_ANT_SEL2_N
C237
UMTS_ANT
C240
3G_RX_ON
R209
C241
L216
RFS100
C100
L102
9
PCN|PCS_TX
11
GSM850|EGSM_TX
6
CTRL3
5
CTRL2
4
CTRL1
G G
C119
C120
C121
2
DUF200
U203
VSHUTDOWN|BYP
1
6
NC
2 RF_IN
5
RF_OUT
3
4
GND
VDD
L219
GND
7
VRX_2.9V
L221
C250
C251
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Flow Chart of Troubleshooting and Circuit Diagrams
VTCXO_2.8V
L100
C101
MOD100
1
7
ANT
VDD
PCN_RX 16
PCN_RX
17
18
PCS_RX
19
PCS_RX
12
GSM850_RX
13
GSM850_RX
14
EGSM_RX
15
EGSM_RX
21
WCDMA2100
G
G
G G
G
G
3
8 10
23
24
20 22
F201
C243
3
OUT
1
IN
4
OUT
G
G
C244
2
5
L220
10-37
L104
DCS_RX_N
C102
C103
L105
DCS_RX_P
L106
PCS_RX_N
C108
C107
L107
PCS_RX_P
L108
GSM850_RX_N
C112
C113
L109
GSM850_RX_P
L111
GSM900_RX_N
C122
C123
L112
GSM900_RX_P
UMTS_ANT
C242
L217
L218
C245
3G_RX_P
3G_RX_N
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