LG -C300 Service Manual page 34

1. RX1, RX2, RX3, and RX4 are broadband receive ports and each supports the EGSM, GSM850, PCS, and DCS bands.
L301 3.3n
DCS_PCS_OUT
GSM_OUT
1n
L308
C359
DNI
L303 3.3n L306 3.3n
C314
1.5p
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Only for training and service purposes
Figure 3.3.2 Band SW Logic Table
L302 3.3n
C306 56p
C343 22p
C392
DNI
C305
1p
7
GND5
8
GND6
9
GND7
10
RX1
11
RX2
C322 C302
33p 33p
Figure 3.3.3 FEM CIRCUIT DIAGRAM
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VBAT
C316
10n
23
GND_SLUG
22
VRAMP
21
TX_ENABLE
20
GPCTRL0
19
GPCTRL1
18
VBATT
C323
1n
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3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
C325 C327 C317
33p
4.7u 4.7u
R327
10
C318
C315 C319 C326
39p 1n 1n 1n
LGE Internal Use Only
TX_RAMP
TX_EN
BS1
BS2
VLOGIC