Checking Ant. Sw Module Block - LG KU730 Service Manual

4.4 Checking Ant. SW Module Block

R100
C101
8.2nH
ANT_SEL0
ANT_SEL1
R102
ANT_SEL0
0
ANT_SEL2
0
ANT_SEL1
R105
0
ANT_SEL2
R109
Antenna Switch Block(Bottom)
SW100
G2
ANT RF
G1
0
KMS-507
1p
L502
C106
47p
VREG_RFRX_0_2.85V
C116
47p
C124
47p
Schematic of the Antenna Switch Block
4. TROUBLE SHOOTING
C100 33p
L101
NA
ESHS-L090UB
7
GND1
9
GND2
11
GND3
13
GND4
18
GND5
20
GND6
17
VC1
15
VC2
14
VC3
L111 7.5nH
C110 C111
47p 0.1u
L117 NA
L119 NA
L123 NA
L125 NA
- 75 -
FL100
1
EGSM_RX1
2
EGSM_RX2
3
DCS_RX1
4
DCS_RX2
5
PCS_RX1
6
PCS_RX2
8
DCS_PCS_TX
10
EGSM_TX
19
UMTS_TX_RX
C121
68p
C125
C126
33p
22p
TP1