LG KE600 - Cell Phone Service Manual page 106

5.15.5 Checking Mobile SW & FEM
Mobile SW & FEM Circuit Diagram
OUT601
R624 R606
NA 0
OUT604
L607
C607
NA
Checking Points
RX Mode
ANT_SW1
ANT_SW2
ANT_SW3
KMS-510
3.3nH SW601
C642 15p
G2
ANT RF
G1
L608
C604
22nH
NA
Figure 10. Mobile SW & FEM Circuit
SW601
Pin1
FL601
Pin2
R601
R602
Figure 11 Mobile SW &
EGSM
Off
On
Off
Table 2. FEM RX Control Logic
2V85_RF
C605 C606
56p 0.1u
ANT
1
C614 C615 C616 C617
2.5p 2.5p 1.5p 1.5p
L602 L603
18nH 6.8nH
C616
C617
C614
C615
R603
DCS PCS
Off Off
Off Off
On Off
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5. Trouble shooting
FL601
YGHF-S006T
GND11
26
GND10
25
GND9
24
GND8
23
GND7
11
C618 C619
1.2p 1.2p
L604
6.8nH