Samsung SPH-A900 - Page 40

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
7-12
This Document can not be used without Samsung's authorization
(2.6V)
0 : GPS_ENABLE 1 : GPS_DISABLE
C316
5
IN
1
3
OUT OUT
4
F300 856302
2
GG
L314
C327
R307
C313
C300
C338
4
VDDA11
17
V
D D
A
1
2
V
D D
A
1
3
18
29
VDDA14
14
V
D D
A
2
1
V
D D
A
2
2
39
VDDA3
27
V
D D
A
4
20
VDDM
23
8
PCS_INP
6
RX_IM
30 31
RX_IP
R X
_
Q
M
33
R
X
_
Q
P
34
R _
B
I
A
S
38
SBCK
25
SBDT
26
SBST
24 28
TCXO
32
10
GPS_INM
G
P
S
_
I
N
P
12
21
GVCO_TUNE
L
O
_
I
N M
15
16
L
O
_
I
N P
19
L
O
_
O
U T
N C
1
3637
N C
2
N C
3
4546
N C
4
PCS_INM
G
N D
1
2
42
G
N D
1
3
4344
G
N D
1
4
3
GND2 GND3
5 7
GND4
9
GND5 GND6
11
13
G
N D
7
GND8
22
G
N
D 9
U301
C
E
L
L
_
I
N M
40
2
CELL_INP
1
GND1
G
N D
1
0
35
G
N D
1
1
41
L308
R309
C329
L311
C314
V_TCXO
R303
R302
C334
C326
C332
C302
C309 C310
R311
R300 L301
R308
G
8
OUT
1
7
VCC
C328
VCO300
5
CONTROL
ENABLE
3
2
G
G
4
G
6
R304
L315
R313
5
IN
1
3
OUT
OUT
4
L307
F301
2
GG
L310
C311
4
11
PLNA_OUT
16
R
_
B
I
A
S
7
S
B
C
K
10
SBDT
S
B
S
T
8
V
D D
A
15
VDDM
9
14
G
N
D
G
N
D
1718
G
N
D
19
G
N
D
G
N
D
20
21 NC
NC22
3
PLNA_BIAS PLNA_IN
RFL6000 U300
2
CLNA_BIAS CLNA_IN
1
13
C L
N A
_
O
U T
6
F
M
_
S
T
E
P
G
N D
5
GND
12
V_RFRX
C325
G
2
G
35
G
4
IN
1
OUT
C331
B9000 U404
VPD
C308
C337
V_TCXO
C317
C322
L306
C525
C320
R314
C321
R306
TA330
4
VSD
L313
G
N
D
7
1
NC NC
3
2
RFIN 5
RFOUT
6
VDD
U302
R310
R305
R301
C304
C307
C305
L302
C318 C312
C324
C301
L317
L300
L304
C339
C306
C319
C303
L303
L316
L305
C333
V_RFRX
TCK301
2
GND
3
OUTVCC
4 1
VCON
C336
VPD
R312
C323
C335
L309
V_RFRX
V_TCXO
C315
TCXO
TRK_LO_ADJ
EXT_VCO_EN
GPS_MODE
CP_RX
L312
RX_Q_N RX_Q_P RX_I_P RX_I_N
UHF_LO_BUFF
GPS_RX
SBI_ST SBI_CK SBI_DT
CELL_RX
PCS_RX
SBI_CK SBI_ST SBI_DT
TCXO