Checking Front-End Module Block - LG KF310 Service Manual

4.14 Checking Front-End Module Block

C1005
56p
R1005
L1001
100nH
SW1000
KMS-518
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP4
FL1000
DGM129M01
11
GSM850_EGSM_TX
9
PCN_PCS_TX
2 21
GND1 WCDMA_2100
3
GND2
8 13
GND3 GSM850_RX2
10 12
GND4 GSM850_RX1
20
GND5
22 15
GND6 EGSM_RX2
23 14
GND7 EGSM_RX1
24
GND8
17
PCN_RX2
16
PCN_RX1
1
ANT
19
PCS_RX2
18
PCS_RX1
[Fig.] Schematic of the Front-End Module Block
[Fig.] Test Point of Front-End Module Block
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4. TROUBLE SHOOTING
15nH
C1001 C1002
L1000
33p 0.1uF
TP1
TP2
18p C1014
TP3
VREG_S3_2.7V
ANT_SEL0
ANT_SEL1
ANT_SEL2
LGE Internal Use Only