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Flow Chart of Troubleshooting
10-24
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C109
C105
C102
C124
C120
C121
C125
RFS100
A
2
3
C
1
G
4
G
R102
L109
TX_EN
4
5
BS
DCS_RX
6
GSM_RX
7
G
N
D
8
G
N
D
9
C111
16
G
N
D
GSM_IN
17
18
NC
DCS_IN
19
VLOGIC
2
20
G
N
D
G
N
D
21
VRAMP
3
1
VBATT
G
N
D
10
A
N
T
11
G
N
D
4
12
13
G
N
D
3
14
G
N
D
2
15
G
N
D
1
PAM100
C103
R111
TP101
L101
L102
R100
VBAT
L108
L107
C110
IN1 1
4
IN2
8 OUT1
OUT2
6
F100
BAL1
9
BAL2
7
2
G
G
3
G
5
10
G
L103
TA100
C119
C117
C108
C118
TX_EN
VAPC
DPCS_PAM_IN
GSM_LNA_IN_P
GSM_LNA_IN_N
DCS_LNA_IN_N
DCS_LNA_IN_P
GSM_PAM_IN
VMOD_EN
BAND_SEL
VCCD_2.9V
2
4
3
1
OSC100
C114
L104
C126
C100
C122
VRF_2.9V
C123
C104
C127
C107
V
C
C
_
F
E
1
V
C
C
_
R
E
F
1
7
VCC_TXVCO
1
2
1
3
VDD
1
5
VLDO1
1
6
VLDO2
9
VLDO3
S
C
L
K
S
D
A
T
A
5
S
E
N
7
TXOP_HI
1
1
TXOP_LO
1
0
1
8
V
A
F
C
VBAT
1
4
V
C
C
_
B
B
I
4
V
C
C
_
B
B
Q 2
4
RX1800B
2
7
2
6
RX1900
RX1900B
2
5
3
2
RX850
3
1
RX850B
3
0
RX900
2
9
RX900B
6
3
4
N
C
N
C
3
5
Q
2
3
Q
B
2
2
R
E
F
IN
2
0
R
E
F
IN
B
1
9
2
1
R
E
F
_
O
P
2
8
RX1800
U103
GND
3
3
2
I
3
IB
8
N
C
C113
C112
R101
C106
R103
C115
C101
C116
VBAT
GSM_PAM_IN
DPCS_PAM_IN
RTXQN
26M_OUT
DCS_LNA_IN_N
DCS_LNA_IN_P
GSM_LNA_IN_N
GSM_LNA_IN_P
SERCLK
SERDAT
SERLE
AFC
RTXIP
RTXIN
RTXQP
Summary of Contents for SGH-B200
Page 59: ......