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Flow Chart of Troubleshooting
9-34
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C257
L219
C223
C239
R201
C212
C236
L203
C220
R203
C221
C268
3
RX
1 TX
L202
F203
B7637
6
ANT
2
G G
4 5
G G
7
G
8 9
G
3
ANT
4
GND
2
RX
1
TX
F204
C211
L211
C261
C251
C232
C237
L218
F202
GND1
2
4
GND2
IN
1
OUT
3
L221
F201
2
G
3
G
5
G
IN
1
C240
R215
L216
C262
HB_LNA_OUT
9
R202
A
D
D
V
8
4
D
N
G
9
4
LB_INP
5
C
N
0
5
C
N
1
5
HB_INM
6
HB_INP
7
VDDA
8
A
D
D
V
0
4
T
U
O
_
P
C
_
S
P
G
1
4
A
D
D
V
2
4
C
N
3
4
C
N
4
4
O
X
C
T
5
4
A
D
D
V
6
4
T
U
O
_
P
C
_
S
T
M
U
7
4
R_BIAS_GPS
33
BLANK
34
GPS_PLNA_OUT
35
VDDA
36
P
NI
_
S
P
G
7
3
M
NI
_
S
P
G
8
3
A
D
D
V
9
3
LB_INM
4
VDDA
26
GRX_QM
27
GRX_QP
28
GRX_IP
29
VDDA
3
GRX_IM
30
VDDA
31
GPS_PLNA_IN
32
PI
_
X
R
91
R_BIAS
2
MI
_
X
R
02
A
D
D
V
12
M
D
D
V
22
I
B
S
S
32
D
N
G
42
VDDM
25
VDDA
11
NC
12
S
T
M
U_
S
AI
B
_
R
31
NI
_
A
NL
_
BL
41
NI
_
A
NL
_
B
H
51
A
D
D
V
61
P
Q
_
X
R
71
M
Q
_
X
R
81
U203
NC
1
LB_LNA_OUT
10
R217
C238
C241
C245
C259
C233
C243
C222
R211
L222
L204
C205
L214
C216
C213
R213
C231
R219
COUP
1
IN
OUT
2
U201
50OHM
3
4
COUP
4
IN
1
2
OUT
R205
U202
3
50OHM
L220
L201
L213
R214
L205
C247
R216
C214
C254
L223
C206
C207
C202
R212
C235
C209
C263
R204
L212
1 VEN_CELL
VEN_PCS
7
VMODE1
3
VMODE2
5
C244
15
RFIN_CELL
2
6 RFIN_PCS
RFOUT_CELL
13
RFOUT_PCS 8
4 VBATT
12
VCC
VCCA 11
PAM201
14
GND
10
GND
9
GND
GND
C249
C218
C215
OUT2
C266
2
G
G
3
G
5
10
G
IN1 1
4
IN2
8 OUT1
6
F205
BAL1
9
BAL2
7
C252
C248
C265
C234
C219
C242
C260
C258
C203
C253
L215
C267
C264
VBATT
R218
C224
C246
C204
C256
C250
00
91
_
X
R_
S
T
M
U
05
8_
X
R_
S
T
M
U
UMTS_1900
UMTS1900_RX_P
UMTS1900_RX_N
UMTS850_RX_P
O
X
C
T_
57
26
R
F
R
UMTS850_RX_N
VREG_RF_SMPS
VREG_RF_SMPS
R
F
R
_
T
D
B
S
S
N_
I_
X
R
P
_I
_
X
R
N_
Q
_
X
R
P
_
Q_
X
R
VREG_RF_SMPS
PWR_DET_UMTS850
PWR_DET
PWR_DET_UMTS850
UMTS850_RX_N
UMTS850_RX_P
UMTS_RX_1900
UMTS_RX_850
UMTS1900_RX_N
UMTS1900_RX_P
VREG_RF_SMPS
VREG_MSMP_2.6V
UMTS_850
PA_ON2
PA_R1
PA_ON1
UMTS850_TX
UMTS1900_TX