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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LGE Internal Use Only
Figure 3.13.3 PAM and FEM Circuit Diagram
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5
6
0
_
O
I
P
G
(
)
6
6
0
_
O
I
P
G
(
)
0
7
0
_
O
I
P
G
(
)
0
6
0
_
O
I
P
G
(
3
0
5
T
N
A
34
35
PGND5
PGND6
36
11
RX1
RX2
12
13
RX3
RX4
14
N
E
_
X
T
4
30
VBATT
C
I
G
O
L
V
2
3
P
M
A
R
V
4
1
D
N
G
GND15
25
26
GND16
28
GND17
2
D
N
G
7
8
3
D
N
G
4
D
N
G
9
10
GND5
GND6
15
16
GND7
8
D
N
G
8
1
9
1
9
D
N
G
27
GSM_IN
31
PGND1
PGND2
32
33
PGND3
PGND4
2
0
5
U
1
3
5
7
7
Y
K
S
1
0
2
5
0
0
0
H
R
M
S
T
N
A
7
1
1
S
B
5
2
S
B
6
DCS_PCS_IN
29
1
GND1
0
2
0
1
D
N
G
1
1
D
N
G
1
2
2
2
2
1
D
N
G
3
1
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N
G
3
2
4
2
p
9
3
1
1
5
C
6
5
2
0
5
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N
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5
0
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C524
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3
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3
1
1
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27p
m
h
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1
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3
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2
2
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-
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2
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2
0
3
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R
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1
0
3
6
0
0
0
Y
W
N
E
ANT
G1
G2
RF
5
1
5
C
p
2
2
DNI
R512
100p
C522
I
N
D
1
0
5
R
0
0
F
0
N
C
M
1
8
8
N
E
W
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1
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2
3
2
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N
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5
3
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N
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4
D
N
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0
1
5
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1
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8
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4
5
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4
9
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1
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F
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1
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5
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1
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0
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m
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0
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5
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3
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5
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1
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m
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1
6
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5
R
3.9nH
L501
M
6
2
-
G
1
2
3
X
S
D
C523
3
9p
u
7
4
2
1
5
C
2
0
9
1
0
0
0
B
S
F
S
0
0
F
0
N
C
4
8
G
1
N
E
W
A
S
1
0
5
L
F
1
D
N
G
2
3
2
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N
G
5
3
D
N
G
4
D
N
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0
1
5
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2
4
8
1
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N
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4
0
6
9
1
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1
1
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5
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2
4
8
1
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7
6
2
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5
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8
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1
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8
2
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6
9
1
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T
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O
T
A
B
V
K
0
1
2
0
5
R
100p
C526
C525
100p
1
W
S
_
T
N
A
D
N
A
B
_
A
P
N
E
_
A
P
2
W
S
_
T
N
A
P
M
A
R
_
X
T
C
F
A
0
t
’
D
X
X
1
0
D
N
A
B
A
P
1
0
0
1
0
1
1
0
1
e
d
o
M
0
0
3
X
R
1
1
X
X
T
_
B
H
0
1
1
S
B
X
T
_
B
L
2
S
B
1
0
2
X
R
X
4
X
R
1
X
1
N
E
_
X
T
X
1
X
R
y
b
d
n
a
t
S
1