Lge Internal Use Only - LG -S367 Service Manual

1 Rx1 and Rx2 are broadband receive ports and each supports the GSM850, GSM900, DCS,
and PCS bands.
L418 L417
6.8n 6.8n
GND13
23
GND12
24
GND11
25
ANT
26
GND10
27
GND9
28
PGND
29
VBAT
C427
3.9p

LGE Internal Use Only

Figure 3.3.2 Band SW Logic Table
FL400
1 I1 9
O1-1
8
O1-2
7
O2-1
4 6
I2
O2-2
2 3 5 10
RSVD2
14
RSVD1
13
U400
BS
12
VSW_EN
11
L410
Tx_HB_IN
10
C424
Tx_LB_IN
9
C428
C429
3.9p
10u
Figure 3.3.3 FEM CIRCUIT DIAGRAM
L425 3.3n
C491 C492
DNI DNI
L426 3.3n
L424 15n
C489 C490
DNI DNI
L423 15n
R406 110
R407 1K
C410 C407
39p 1n
R410 110
RF_BS
C415
1n
2.2nH L411 2.2nH
RF_HB_TX
L412 2.2nH
33p
RF_LB_TX
L414
L413
1.5n
1.5n
C425 C426
1.2p 1p
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3. TECHNICAL BRIEF
RF_HB_RXP
RF_HB_RXN
RF_LB_RXP
RF_LB_RXN
RF_TX_EN
RF_TX_RAMP
R412 110
RF_VLOGIC
C420
1n
Only for training and service purposes