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Flow Chart of Troubleshooting
UMTS_PA_RANGE1
PEMD10
TR200
VRFTX_2.65V
4 E2
C2
3
C252
5 B2
B1
2
C1
E1 1
6
C208
UMTS_PA_EN
F202
B9003
L213
C249
1
OUT 3
UMTS850_TX
IN
GND1
GND2
L206
2
4
VBATT
C201
C200
PAM200
1
GND 10
VREF
2
9
VMODE
C247
GND
3 GND
RFOUT 8
4
GND 7
RFIN
C207
L202
5
6
VCC
VCC
GND
11
C257
PWR_DET
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DUF200
856356
11
TX
1 2 3 4 6
CPL201
1
OUT 2
IN
COUP
50OHM
4
3
R202
TRK_LO_ADJ
R203
VTCXO_2.8V
R204
R205
9-40
C202
UMTS_ANT
L210
C203
8
L200
ANT
5
RX
7 910 12
C206
<TCXO>
TCX200
R201
2
1
C211
VCON
GND
C212
VCC
OUT
4
3
L204
RFR6275_TCXO
C213
RTR6275_TCXO
C215
C216
C217
TCXO
UMTS_RX_850
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