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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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LGE Property
4.13.6 Checking FEM & Mobile SW
EGSM/GSM850
DCS/PCS
FE1
OFF
ON
FE2
ON
ON
SW600
TP3_C604 (FE1)
FL60
TP1
TP2
TP4_C605 (FE2)
TP5
Mobile SW & FEM Circuit Diagram
Figure 28. Mobile SW & FEM Circuit
Checking Points
Figure 29 Mobile SW & FEM
Table 5. FEM TX Control Logic
TP2
TP1
TP3
TP4
TP5
z
H
M0
88
1,
5.
63
8
10
6L
F
02
91
31
11
81
51
8
41
7
21
6
9
5
4
01
3
61
2
1
17
ANT
1
X
R0
58
M
S
G
2
X
R0
58
M
S
G
4
D
N
G
1
X
R0
09
M
S
G
2
C
V
2
X
R0
09
M
S
G
1
X
R0
08
1
M
S
G
1
D
N
G
2
X
R0
08
1
M
S
G
2
D
N
G
1
X
R0
09
1
M
S
G
1
C
V
2
X
R0
09
1
M
S
G
XT
00
9_
05
8
M
S
G
5
D
N
G
XT
00
91
_0
08
1
M
S
G
3
D
N
G
1
C
N
2
C
N
CN601
2
6
5
4
3
1
NI 1
D
N
G
2
D
N
G
3
D
N
G
4
D
N
G TU
O
100n
L601
8.2p
C637
22p
C604
100
R606
100
R607
C607
47pF
47pF
C610
DNI
C612
ANT601
12n
L608
VC1
VC2
(FROM Transceiver)
(FROM Transceiver)
CI:$0.05(CMOS->PIN)
TP2
TP
TP4
TP5
TP1
Содержание GT350
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