LG KU730 Service Manual page 84

4.6.2 Checking Ant. SW Module
Refer to chapter 4.4
4.6.3 Checking RF Tx level
C101
8.2nH
ANT_SEL0
ANT_SEL1
ANT_SEL2
TP1
TP1
Test Point (RF Tx Level)
TP1
SW100
R100
G2
ANT RF
G1
0
KMS-507
1p
L101
L502
NA
R102
0 C106
47p
VREG_RFRX_0_2.85V
0
R105
C116
47p
0
TP2
R109
C124
47p
Schematic of RF TX Level
4. TROUBLE SHOOTING
TP2
TP2
C100 33p
ESHS-L090UB FL100
7
GND1 EGSM_RX1
9
GND2 EGSM_RX2
11
GND3 DCS_RX1
13
GND4 DCS_RX2
18
GND5 PCS_RX1
20
GND6 PCS_RX2
17
VC1 DCS_PCS_TX
15
VC2 EGSM_TX
14
VC3 UMTS_TX_RX
L111 7.5nH
C110 C111
47p 0.1u
L117 NA
L119 NA
C125
C126
33p
22p
L123 NA
L125 NA
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TP3
TP2
1
2
3
4
5
6
8
10
19
TP3
C121
68p