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SGH-Z320i Flow Chart of Troubleshooting and Circuit Diagrams
2-
30
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6
G
7 9
7
G
10
8
G
9
G
12
5
RX
11
TX
ANT
8
1
1
G
13
0
1
G
2
G
2 3
3
G
4
G
4 6
5
G
DUF600
C709
C708
R705
C702
C703
R702
UMTS_ANT
UMTS_LNAIN
C712
C716
MSMP_2.6V
TCXO_2.85V
C710
G
2
5
G
1
IN
OUT
3
4 OUT
F701
C718
C720
RFRX2_2.85V
L704
C729
C725
C723
L705
R710
R709
C721
TCXO_2.85V
R703
9
1
2
F
R
D
D
V
12
VDDRF3
26
VDDA3
27
VDDA4
32
VDDA5
34
VDDA6
36
VDDA7
5
4
8
A
D
D
V
1
4
M
D
D
V
3
VDDRF1
6
4
S
AI
B
_
R
2
4
K
C
B
S
3
4
T
D
B
S
4
4
T
S
B
S
33
TCXO
25
UMTS_TUNE
7
VDDA1
4
2
2
A
D
D
V
6
1
NI
_
A
N
L
P
3
1
T
U
O
_
A
N
L
P
10
PMIXM
11
PMIXP
1
2
MI
_
X
R
0
2
PI
_
X
R
3
2
M
Q_
X
R
2
2
P
Q_
X
R
8
1
NI
_
A
N
LI
4
1
T
U
O_
A
N
LI
8
IMIXM
9
IMIXP
28
LO_OUT
1
C
N
0
5
1
5
2
C
N
5
1
S
AI
B
_
A
N
L
P
GND1
4
9
4
2
D
N
G
35
GPS_TUNE
9
3
MI
_
X
R
G
0
4
PI
_
X
R
G
7
3
M
Q_
X
R
G
P
Q
_
X
R
G
8
3
7
1
S
AI
B_
A
N
LI
29
CP_DUMP
CP_OUT
30
31
FAQ
8
4
S
AI
B
_
A
N
L
G
7
4
NI
_
A
N
L
G
1
GLNA_OUT
5
GMIXM
6
GMIXP
U700
2
BLANK
C727
R706
C717
C711
F700
C724
C728
C714
L702
C719
L703
L701
C715
C722
C713
C726
40
7
R
L708
TCXO
NI
A
N
L
_
S
T
M
U
UMTS_RXP
UMTS_RXM
FAQ
UMTS_TUNE
FAQ
UMTS_RXM
UMTS_RXP
UMTS_TUNE
P
Q
_
X
R
M
Q
_
X
R
PI
_
X
R
MI
_
X
R
K
C
B
S
T
S
B
S
T
D
B
S