4.4 Checking Ant. Switch Module Block
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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Ant_Sel0
VDD (TP1)
FL1000
Ant_Sel1
Ant_Sel2
Ant_Sel3
C1009
1p
R1003
1K
1.8nH
L1002
KMS-518
SW1000
A
C
G1
G2
ANT101
GND3
10
GND4
23
24
GND5
GSM850_EGSM_TX
11
12
GSM850_RX1
13
GSM850_RX2
9
PCN_PCS_TX
PCN_RX1
16
PCN_RX2
17
PCS_RX1
18
19
PCS_RX2
7
VDD
22
WCDMA_1900
WCDMA_2100
20
WCDMA_850
21
D5015
FL1000
ANT
2
CTRL1
3
CTRL2
4
5
CTRL3
6
CTRL4
EGSM_RX1
14
15
EGSM_RX2
GND1
1
GND2
8
C1004
51p
R1006
1K
1K
R1004
ANT100
C1031
0.1uF
C1003
15p
1K
R1002
VREG_S3_2.7V
L1008
15nH
8.2nH
L1004
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
Schematic of the Antenna Switch Block
TP1