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4.4 Checking Ant. Switch Module Block
C500
0
ANT500
L502
C502
1p
NA
ANT501
ANT_SEL0
ANT_SEL1
ANT_SEL2
VREG_RFR_2.85V
C519
47p
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
SW500
KMS-512
C501
56p
G2 RF
ANT G1
L504
56nH
C509
C510
C511
47p
47p
47p
L514
7.5nH
C520
0.1u
Schematic of the Antenna Switch Block
4. TROUBLE SHOOTING
ESHS-L090UB
FL500
7
1
GND1
EGSM_RX1
9
2
GND2
EGSM_RX2
11
3
GND3
DCS_RX1
13
4
GND4
DCS_RX2
18
5
GND5
PCS_RX1
20
6
GND6
PCS_RX2
17
8
VC1
DCS_PCS_TX
15
10
VC2
EGSM_TX
14
19
VC3
UMTS_TX_RX
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C507 1.5nH
WCDMA_2100
C512
C513
NA
NA
LGE Internal Use Only
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