Checking Ant. Switch Module Block - LG KT610 Service Manual

4.4 Checking Ant. Switch Module Block

VBATT (TP1)
A N T 6 0 1
C
1
A N T 6 0 6
V B A T T
G S M _ P A _ R A
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Ant_Sel1
K
2 7 . n H
C 6 0 3
6 0 2
0 0 p
L 6 0 2
C 6 0 8
1 5 n H
1 2 . p
A N T _ S E L 2
A N T _ S E L 0
A N T _ S E L 1
1 0 0 0 p
C 6 1 8
TP1
C 6 2 5
C 6 2 9
1 0 u
5 1 p
2 2 . K R 6 0 1
M P
C 6 4 4
6 8 p
Schematic of the Antenna Switch Block
4. TROUBLE SHOOTING
U601
Ant_Sel0
M S 5 - 1 8
S W 6 0 1
C 6 0 4 5 6 p
C 6 0 9
1 0 0 n H
S K Y 7
2 8
B S 1
2 7
B S 2
2 6
V B A T T
C 6 2 0
1 0 0 0 p
1 0 0 0 p
C 6 1 9
2 5
V A P C
2 3
G S M _ N I
2 1
D C S _ P C S _ N I
2 4
G N D 1 3
2 2
G N D 1 2
2 0
G N D 1 1
1 9
G N D 1 0
1 8
G N D 9
1 7
G N D 8
1 6
G N D 7
1 5
G N D 6
- 93 -
Ant_Sel2
7 5 1 9 U 6 0 1
8
A N T
1
T X E N
2
M O D E
3
R S V D
4
R X 4
5
R X 3
6
R X 2
7
R X 1
1 0
W C D M A 1
9
G N D 1
1 1
G N D 2
1 2
G N D 3
1 3
G N D 4
1 4
G N D 5
2 9
P G N D
LGE Internal Use Only