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Flow Chart of Troubleshooting
7-15
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0
: G
PS_
EN
ABL
E
1
: G
P
S_
D
ISABL
E
2
G
35
G
1
IN
4
OU
T
F
303
G
C302
R308
C310
C362
L313
C358
C345
C355
C356
V_
T
C
XO
L
323
OU
T
3
SW
VC
5
VC
C
7
R344
O
S
C301
G
8
G
6
4
G
2
G
1
D2
G 4
S1 13
S2
AT
F
-55143
Q302
C
312
R343
R312
C338
C304
G
5
IN
1
3
OUT
OUT
4
1
VC
O
N
F302
2
G
O
S
C303
2
GN
D
3
OU
T
VC
C
4
C314
C325
R345
L304
C
324
L
321
R310
C320
R303
R309
V
_
RF
RX
R307
L308
C306
C336
C301
C313
C354
L309
R302
C315
C326
R305
C361
L322
2.
7DV
_
B
T
C308
R346
C309
C332
C317
R300
L
314
C340
C307
C333
L303
L301
C305
R306
C334
C300
V
_
RF
RX
C344
C321
L311
C
363
50V
C341
L
324
V
_RF
RX
L306
C323
VPD
P
LNA
_I
N
4
GN
D
5
FM_STEP
6
SPI_CLK
7
SPI_EN
8
VDDM
9
14
GN
D
VDDA
15
RBIAS
16
GND
17
NC
18
NC
19
CLNA
_I
NB
IA
S
2
P
LNA
_I
NB
IA
S
3
U301
F
C
7510
CLNA
_I
N
1
SPI_DT
10
P
LNA
_O
UT
11
GN
D
12
CLNA
_O
UT
13
5
IN
1
3
OUT
OUT
4
VPD
F301
2
GG
C322
Q
301
1
3
2
C316
L310
V_
T
C
XO
L305
C311
L302
28
VDDA11
4
VDDA12
17
18
VDDA13
VDDA14
29
VDDA21
14
39
VDDA22
27
VDDA3
20
VDDA4
23
VDDM
46
8
PCS_INM
6
PCS_INP
30
RX_IM
RX_IP
31
33
RX_QM
34
RX_QP
38
R_BIAS
25
SBCK
26
SBDT
24
SBST
TCXO
32
GND9
GPS_INM
10
12
GPS_INP
GVCO_TUNE
21
15
LO_INM
LO_INP
16
LO_OUT
19
36
NC1
NC2
37
45
NC3
NC4
GND11
42
GND12
43
GND13
GND14
44
GND2
3
5
GND3
GND4
7
GND5
9
11
GND6
GND7
13
22
GND8
RF
R6000
U302
40
CELL_INM
CELL_INP
2
GND1
1
35
GND10
41
C318
L312
R304
L300
C303
L307
R301
C
319
C327
G
PS_
R
X
G
PS_
MO
D
E
SBI_CK
SBI_DT
SBI_ST
B
T
_CLK
_E
N
TC
X
O
_
B
T
E
X
T
_V
CO
_E
N
CP
_RX
RX
_Q
_N
RX
_Q
_P
RX
_I
_P
RX
_I
_N
UHF
_LO
_
B
U
F
F
SBI
_
S
T
SBI
_
C
K
SBI
_
D
T
CE
LL_RX
PC
S_
R
X
TC
X
O