SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
3-42
This Document can not be used without Samsung's authorization
C139
C137
C133
R122
V_2.85TX
C122
R115
C144
L117
C148
C142
C150
C136
C145
C141
C128
V_2.85TX
C153
L119
R120
V_2.6P
R107
C127
C130
9
01
R
L118
C120
R121
C143
R110
L116
L113
V_2.85OSC
C121
L115
C147
C140
C149
V_2.85OSC
V_2.85TX
R105
L114
V_2.85TX
C126
27
VDDA8
31
9
A
D
D
V
43
M
D
D
V
8
F
E
R_
E
N
U
T
V
54
VDDA16
56
VDDA17
5
2
A
D
D
V
7
3
A
D
D
V
10
4
A
D
D
V
15
5
A
D
D
V
23
VDDA6
26
VDDA7
9
E
N
U
T_
O
C
V
4
1
A
D
D
V
36
0
1
A
D
D
V
39
1
1
A
D
D
V
41
2
1
A
D
D
V
48
VDDA13
50
VDDA14
52
VDDA15
40
P
C_
D
O
M_
X
T
17
TX_QN
16
TX_QP
42
B
F_
O
C
V_
X
T
53
UMTS1900_OUT
51
UMTS2100_OUT
55
UMTS800_OUT
49
VCONTROL
32
NI
_
O
C
V
_
X
R
33
S
AI
B_
R
44
SBCK
45
SBDT
46
SBST
6
O
X
C
T
19
TX_IN
18
TX_IP
37
P
NI
_0
09
M
S
G
58
NC1
59
NC2
47
RF_ON
14
NI
_
X
R
13
PI
_
X
R
12
N
Q
_
X
R
11
P
Q
_
X
R
57
GND
34
N
NI
_0
08
1
M
S
G
35
P
NI
_0
08
1
M
S
G
24
GSM1900_INN
25
GSM1900_INP
21
GSM850_INN
22
GSM850_INP
38
N
NI
_0
09
M
S
G
2
1
P
C
30
2
P
C
1
1
D
L
O
H
_
P
C
29
2
D
L
O
H_
P
C
20
DAC_REF
3
1
Q
A
F
28
FAQ2
U100
O
C
V
X
T
P
C_
D
O
M
P
X
R_
M
S
G
N
X
R_
M
S
G
UMTS_TXRF
SBST
SBDT
SBCK
P
Q
_
X
R
M
Q
_
X
R
PI
_
X
R
MI
_
X
R
RF_ON_TX_ON
PCS_RXP
PCS_RXN
P
X
R_
S
C
D
N
X
R_
S
C
D
DAC_REF
UMTS_RX_TUNE
VCO_TUNE
E
N
U
T_
O
C
V
TX_AGC_ADJ
O
X
C
T
TX_QP
TX_QM
TX_IP
TX_IM
UMTS_RX_VCO_IN