LG KF390 Service Manual page 73

4. TROUBLE SHOOTING
4.2.2 Checking FEM (Front End Module)
block
VREG_RF_2.85V
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
LGE Internal Use Only
AN1002 AN1003
2
ANT
1
GND1
8
GND2
10
GND3
23
GND4
24
GND5
TP1
L1006
15nH
C1034
33p
TP4
TP5
[Fig.] the schematic of FEM Block
[Fig.] Test Point of GSM PAM Blcok
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FL1000
D5015
18
PCS_RX1
19
PCS_RX2
16
PCN_RX1
17
PCN_RX2
14
EGSM_RX1
15
EGSM_RX2
12
GSM850_RX1
13
GSM850_RX2
20
WCDMA_2100
21
WCDMA_850
22
WCDMA_1900
9
PCN_PCS_TX
11
GSM850_EGSM_TX
TP2
TP3
TP2 TP3
TP4 TP5
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP1