LG KP500 - Page 106

5.15.6 Checking FEM & Mobile SW
- 107 -
5. Trouble shooting
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Mobile SW & FEM Circuit Diagram
Figure 28. Mobile SW & FEM Circuit
Checking Points
SW600
TP3_R604 (FE1)
FL600
TP1
TP2
TP4_R605 (FE2)
TP5
EGSM/GSM850 DCS/PCS
FE1 OFF ON
FE2 ON ON
Table 5. FEM TX Control Logic
H
X
T M
S
GE
_0
5
8
M
S
G
L
L
RF
H
41 N
I
P
L
H
L
31 NIP
1CV2CV
X
R M
S
GE_
0
5
8
M
S
G
H
X
T
S
CP
_S
C
D
X
R S
C
P
_S
C
D
G
R
S
3
0
2
-
2
S
-
H
2
2
-
E
3
0
0
0
E
N
W
Y
0
0
0
6
3
0
1
TN
A
1G
2G
FR
1
0
6
C
I
N
D
SW600
R
S
V
D
2
12
32
GN
D
20
3
1
GN
D
2
1
3
0
GND22
2
9
GN
D2
3
GN
D
24
28
GN
D2
5
2
7
GND3
1
3
GN
D
4
11
G
N
D
5
1
0
G
S
M
_
O
UT
9
GN
D
1
1
5
3
6
GN
D
16
35
GN
D
17
3
4
GND18
33
GN
D
1
9
GN
D
2
1
4
U
6
00
GN
D60
1
50
6
C
p
7
4
206
C
u
1
G
S
M
1
9
0
0
_
R
X1
G
S
M
1
9
0
0
_
R
X2
8
G
SM
8
5
0
_
9
0
0
_
T
X
1
5
1
G
SM
8
5
0
_
R
X
1
G
S
M
8
5
0
_
R
X
2
2
3
G
S
M
9
0
0
_
R
X
1
4
G
S
M
9
0
0
_
R
X2
V
C
1
1
4
1
3
V
C
2
V
D
D
1
2
A
N
T
71
9
G
N
D
1
1
1
G
N
D
2
1
6
G
N
D
3
1
8
G
N
D
4
1
9
G
N
D
5
2
0
G
N
D
6
G
SM
1
8
0
0
_
1
9
0
0
_
T
X
1
0
G
S
M
1
8
0
0
_
R
X1
5
G
S
M
1
8
0
0
_
R
X2
6
7
F
L
60
0
SFAY00
11
1
01
DG
M
1
1
10M01
4
Hn
1
4
0
6
L
0
16
R
0
GND
6
00
IND
1
1
6
C
V
RF_2
V8
5
9
0
6
C
IN
D
40
6
C
p
7
4
906R
0
Hn2.2
3
0
6
L
IND
00
6
C
1
1
6R
0
3
0
6
C
p9
3
p081
6
0
6
C
1
0
6
L
H
n
2
1
2
1
6C
IN
D
4
16C
1
EF
2E
F
TP1
TP2
TP5
TP3
TP4
Figure 29 Mobile SW & FEM