Samsung GT-B7330, Service Manual, Page: 90 / 127

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Flow Chart of Troubleshooting
9-51
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ANT101
1
1
2 2
C165 C102
24
3
VC1
VC2
4
5
VC3
VC4
6
7
V
D
D
G
8
9
GSM1800|1900TX
17
GSM1800RX
GSM1900RX
18
19
GSM1900RX
A
N
T
2
UMTS1
20
21
UMTS2
UMTS3
22
23
G G
1
G G
10
11
GSM850|900TX GSM850RX
12
13
GSM850RX
GSM900RX
14
15
GSM900RX
GSM1800RX
16
RFS101
C106
R116
R115
R117
C101
C
1
G
3 4
G
RFS100
A
2
R114
L106 L105
GSM_ANT_SEL2_N
GSM_ANT_SEL1_N
GSM_ANT_SEL0_N
GSM_ANT_SEL3_N
GSM1800_1900
GSM850_900
R106
V_BAT
L100
L102
R103 C104
V
B
A
T
T
VRAMP
5
DCS|PCS_OUT
11
G
N
D
7
1
2
G
N
D
8
GSM_IN GSM_OUT
9
6
NC
10
NC
TX_EN
3
4
PAM100
2 BAND_SEL
DCS|PCS_IN
1
R100
R105
R107
C100
R101
L101
L103
R104
TA100
C105
GSM1800_1900
GSM850_900
GSM_PA_BAND
GSM_PA_EN
PAM_RFOUT_DCS_PCS
PAM_RFOUT_G850_EGSM
GSM_
R108
L120
C121
C117
C115
C143
C120
C139
N
C
7
1
N
C
8
VDDA2
VTUNE_GPS
9
T
X
_
IN
6
4
T
X
_
IP
6
5
T
X
_
Q
N
6
6
T
X
_
Q
P
D
A
C
_I
R
E
F
6
7
6
8
T
X
_
R
B
IA
S
6
9
G
N
D
_
S
L
U
G
7
VDDA2
7
0
H
B
_
R
F
_
O
U
T
1
5
7
L
B
_
R
F
_
O
U
T
2
5
8
H
B
_
R
F
_
O
U
T
2
5
9
H
B
_
R
F
_
O
U
T
3
VDDA1
6
6
0
V
D
D
A
2
6
1
V
D
D
A
2
6
2
V
D
D
A
2
6
3
EGSM_INN
5
VTUNE1
50
GCELL_INP
51
GCELL_INN
5
2
P
D
E
T
_I
N
5
3
V
D
D
A
1
5
4
V
D
D
A
2
5
5
L
B
_
R
F
_
O
U
T
1
5
6
WDRXLB
42
GPS_IN
43
VDDA2
44
GPCS_INP
45
GPCS_INN
46
DCS_INP
47
DCS_INN
48
EGSM_INP
49
W
P
R
X
S
E
2
_O
U
T
35
WPRXSE1_OUT
36
WPRXSE2
37
VDDA2
38
WPRXSE1
39
WDRXHB2
4
VDDA1
40
WDRXHB1
41
V
D
D
A
2
2
8
W
B
_M
X
_
IN
P
2
9
W
B
_M
X
_
IN
M
3
VDDA1
3
0
W
P
R
X
L
B
P
3
1
W
P
R
X
L
B
M
3
2
W
P
R
X
H
B
P
3
3
W
P
R
X
H
B
M
3
4
TCXO
2
0
S
B
D
T
2
1
V
D
D
A
2
2
2
V
D
D
A
1
2
3
V
D
D
M
2
4
V
T
U
N
E
2
2
5
V
D
D
A
2
2
6
R
F
_
O
N
2
7
PRX_QN
13
PRX_IN
14
PRX_IP
15
DRX_QP
16
DRX_QN
17
DRX_IP
1
8
D
R
X
_I
N
1
9
N
|C
2
U100
1
VDDA2
10
VDDA1
11
PRX_QP
12
C156
C132
C122
C162
C130
C111
C158
C133
C131
C144
VREG_PA_2.1V
C163
C138
L119
VREG_PA_2.1V
C161
C160
G
1
IN
OUT
3
4
OUT
F100
G
2 5
C127
C119
C135
C159
VREG_RFRX1_2.7V
C134
C113
C137
R113
L125
C116
C141
RTR_W2100_RX
PAM_RFOUT_W900
RX_GPS
WCDMA_RXP_2100
RTR_W900_P
RTR_W900_M
RX_GSM850_P
RX_GSM850_N
PWR_DET
PAM_RFOUT_G850_EGSM
PAM_RFOUT_DCS_PCS
PAM_RFOUT_W2100
WCDMA_RXM_2100
RX_EGSM900_P
RX_DCS1800_N
RX_DCS1800_P
RX_PCS1900_N
RX_PCS1900_P
WCDMA_RXM_2100
WCDMA_RXP_2100
T
X
_
O
N
RX_EGSM900_N