Samsung GT-B7330, Service Manual, Page: 75 / 127

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Flow Chart of Troubleshooting
9-36
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ANT101
1
1
2
2
C165 C102
2
4
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
2
3
G G
1
G G
1
0
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
71
N
C
8
VDDA2
VTUNE_GPS
9
T
X
_
IN
64
T
X
_I
P
65
T
X
_Q
N
66
T
X
_
Q
P
D
A
C
_
IR
E
F
67 68
T
X
_
R
B
IA
S
69
G
N
D
_S
L
U
G
7
VDDA2
70
H
B
_
R
F
_
O
U
T
1
57
L
B
_
R
F
_
O
U
T
2
58
H
B
_
R
F
_
O
U
T
2
59
H
B
_
R
F
_
O
U
T
3
VDDA1
6
60
V
D
D
A
2
61
V
D
D
A
2
62
V
D
D
A
2
63
EGSM_INN
5
VTUNE1
50
GCELL_INP
51
GCELL_INN
52
P
D
E
T
_
IN
53
V
D
D
A
1
54
V
D
D
A
2
55
L
B
_
R
F
_
O
U
T
1
56
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
28
W
B
_M
X
_I
N
P
29
W
B
_M
X
_I
N
M
3
VDDA1
30
W
P
R
X
L
B
P
31
W
P
R
X
L
B
M
32
W
P
R
X
H
B
P
33
W
P
R
X
H
B
M
34
TCXO
20
S
B
D
T
21
V
D
D
A
2
22
V
D
D
A
1
23
V
D
D
M
24
V
T
U
N
E
2
25
V
D
D
A
2
26
R
F
_
O
N
27
PRX_QN
13
PRX_IN
14
PRX_IP
15
DRX_QP
16
DRX_QN
17
DRX_IP
18
D
R
X
_I
N
19
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