Samsung SGH-D428, Service Manual

Page: 21 / 37

SAMSUNG Proprietary-Contents may change without notice
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams
2- 17
This Document can not be used without Samsung's authorization
4 45
5
6
1
8
7
B
1
B
2
3
67
C D
C D
C
S
P
1
09
3
A
8
2
3
E F
E F
A
2 5 6 3
1 4
U
7
0
3
C
70
7
10
N
F
R
7
0
3
2.
4
C
7
09
3
3N
F
V
C
C
D
U
7
0
4
2 5 6 3
1 4
2
20
N
F
C
7
04
1U
F
C
70
5
10
N
F
C
71
2
V
C
C
D
C
7
99
3
3
0N
F
V
S
S
H
5
V
X
V
C
M
B
1
1
X
O
E
N
A
N
7
N
5
X
O
E
N
A
Q
X
T
A
L
A
N
12
X
T
A
L
B
N
1
1
V
S
S
K
1
0
V
S
S
K
6
E
5
V
S
S
V
S
S
E
7
V
S
S
E
8
E
1
0
V
S
S
V
S
S
G
5
G
10
V
S
S
V
D
D
3
A
1
V
D
D
A
E
1
3
V
D
D
B
K
1
3
F
1
4
V
D
D
C
P
1
3
V
D
D
D
V
R
E
G
D
1
1
K
5
V
S
S
H
1
0
V
S
S
K
8
V
S
S
J
10
J
14
T
X
P
J
13
T
X
Q
N
T
X
Q
P
H
1
3
U
C
B
3
A
2
U
C
V
D
D
1
F
1
P
6
V
D
D
2
M
8
S
E
R
D
A
P
9
S
E
R
L
E
1
S
E
R
L
E
2
M
7
T
C
K
N
9
T
D
I
N
1
0
T
D
O
N
8
T
M
S
P
1
0
T
X
IN
H
1
2
T
X
IP
A
1
0
N
6
R
F
O
V
L
K
4
R
W
N
R
X
IN
M
1
3
L
1
1
R
X
IP
P
1
4
R
X
Q
N
R
X
Q
P
N
1
4
S
E
R
C
K
K
9
O
C
T
L
5
D
5
A
6
O
C
T
L
6
O
C
T
L
7
E
6
C
7
O
C
T
L
8
O
C
T
L
9
C
8
K
1
4
R
A
R
E
F
1
R
A
R
E
F
2
L
1
3
C
1
3
R
E
F
C
R
E
S
E
T
N
N
C
B
4
O
C
T
L
0
O
C
T
L
1
A
5
A
9
O
C
T
L
1
0
O
C
T
L
1
1
E
9
B
5
O
C
T
L
2
O
C
T
L
3
B
6
B
7
O
C
T
L
4
K
1
1
F
1
0
G
N
D
C
G
N
D
D
L
1
0
IO
K
2
M
C
K
7
M
IC
IN
A
1
3
M
IC
O
U
T
B
1
2
N
C
1 2
D
B
4
D
B
5
G
3
F
5
D
B
6
D
B
7
G
2
F
2
D
B
8
D
B
9
E
2
L
4
D
IN
T
R
E
1
1
G
N
D
A
G
N
D
B
D
B
1
0
D
B
1
1
D
4
E
1
D
B
1
2
D
B
1
3
E
4
C
2
D
B
1
4
D
B
1
5
B
1
J
5
D
B
2
D
B
3
J
1
H
3
A
U
X
O
U
T
L
5
C
IN
T
R
D
A
IC
K
B
1
0
B
9
D
A
ID
I
B
8
D
A
ID
O
D
1
0
D
A
IR
N
J
2
D
B
0
D
B
1
H
2
D
2
A
B
7
A
B
8
K
1
G
1
2
A
F
C
G
1
3
A
O
U
T
A
N
F
1
3
A
O
U
T
A
P
E
1
4
A
O
U
T
B
N
A
O
U
T
B
P
D
1
3
A
1
4
A
U
X
IN
B
1
4
A
B
0
P
5
N
4
A
B
1
A
B
2
N
3
P
2
A
B
3
A
B
4
P
1
N
1
A
B
5
A
B
6
M
2
L
2
2
.4
U
70
1
C
7
11
R
7
02
1
0
N
F
C
7
0
2
1
00
K
R
70
4
N
C
C
7
0
3
N
C
C
7
01
N
C
V
C
C
A
V
C
C
D
3
1 4
U
7
0
2
2 5 6
1
0
R
7
9
9
6
7 8
V
C
C
D
V
C
C
D
Z
D
7
0
1
1
2
3
4 5
C
71
0
10
N
F
R
70
1
1
00
K
33
N
F
C
70
8
10
0N
F
C
7
06
1
00
K
S
V
C
_
G
R
E
E
N
S
V
C
_
R
E
D
R
70
5
D
A
IC
K
D
A
ID
I
D
A
ID
O
D
A
IR
N
P
C
S
_
R
X
_
E
N
T
X
_
E
N
S
V
C
_
R
E
D
S
V
C
_
G
R
E
E
N
S
V
C
_
B
L
U
E
T
X
Q
P
X
O
E
N
A
S
V
C
_
B
L
U
E
T
X
_
B
A
N
D
_
S
E
L
T
X
P
O
W
E
R
S
Y
N
_E
N
G
S
M
_
T
X
_
E
N
D
C
S
_
T
X
_
E
N
C
L
K
1
3
M
_
M
C
M
IC
IN
E
N
_V
R
F
E
N
_
V
P
A
C
S
I_
E
N
R
X
IN
R
X
IP
R
X
Q
N
R
X
Q
P
T
X
IN
T
X
IP
T
X
Q
N
A
O
U
T
A
N
M
IC
O
U
T
C
L
K
3
2
K
A
O
U
T
B
N
R
S
T
D
S
P
_
R
W
N
D
S
P
_
IO
D
S
P
_
A
B
(0
:8
)
D
S
P
_
D
B
(0
:1
5
)
D
S
P
_A
B
(8
)
A
F
C
A
U
X
IN
C
P
_I
N
T
D
S
P
_
IN
T
D
S
P
_D
B
(2
)
D
S
P
_D
B
(3
)
D
S
P
_D
B
(4
)
D
S
P
_D
B
(5
)
D
S
P
_D
B
(6
)
D
S
P
_D
B
(7
)
D
S
P
_D
B
(8
)
D
S
P
_D
B
(9
)
S
E
R
C
L
K
A
U
X
O
U
T
A
O
U
T
B
P
S
E
R
D
A
T
S
E
R
L
E
A
O
U
T
A
P
D
S
P
_A
B
(0
)
D
S
P
_A
B
(1
)
D
S
P
_A
B
(2
)
D
S
P
_A
B
(3
)
D
S
P
_A
B
(4
)
D
S
P
_A
B
(5
)
D
S
P
_A
B
(6
)
D
S
P
_A
B
(7
)
D
S
P
_D
B
(0
)
D
S
P
_D
B
(1
)
D
S
P
_D
B
(1
0)
D
S
P
_D
B
(1
1)
D
S
P
_D
B
(1
2)
D
S
P
_D
B
(1
3)
D
S
P
_D
B
(1
4)
D
S
P
_D
B
(1
5)