Pam Schematic - LG GX500 Service Manual

GX500 Operational Description

3.23 PAM Schematic

L404
4.7p
C433
C428
8.2n
0.5p
L406
3.9p
C410
12n
Figure 3-36 PAM schematic
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Only for training and service purposes
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12
DCS_PCS_OUT
10
GSM850_900_OUT
13
BY_CAP1
9
TQM7M5005H
BY_CAP2
14
GND1
11
GND2
8
GND3
15
C425 C422
C417
PGND
0.01U 0.01U
22n
73/143
1
DCS_PCS_IN
2
MODE_SELECT
3
BS
U402
4
VBATT
5
VRAMP
6
TX_EN
7
GSM850_900_IN
OK
C441
C414 C437
C434 100P
33u
1u
27P
OK
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3. TECHNICAL BRIEF
Revision A
R407
HBAND_PAM_IN
100P
PA_MODE
S1_PA_BAND
R403
PA_LEVEL
10K
TXON_PA
R404
LBAND_PAM_IN
100P
C415 C429
C420
100P 47P 100P
LGE Internal Use Only
LGE Property