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MOD_CP
C635
TX_VCO_0_EN
TX_VCO_1_EN
GSM_TX
C600
C602
C605
DCS_TX
C606
V_2.85TX
TA601
C628
R611
R612
C634
C636
R617
C642
R619
C643
C646
L610
17
9
8
10 G
G
11
VCC
12
C644
PAM600
G
13
G
14
R621
DCS|PCS_OUT
15
G
L609
16
VBAT
TA600
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Flow Chart of Troubleshooting and Circuit Diagrams
GSMTX_IN
DCSTX_IN
C629
3
VCC
10
1
VCTL
LOWOUT
11
VCO600
VSW1
5
HIOUT
9
VSW2
R615
14
13
12
8
7
6
4
2
GSM_IN 7
VRAMP
6
GND
5
VBATT
4
TXEN 3
BS
2
DCS|PCS_IN
1
C612
C613
C617
C619
3-36
R607
R608
R614
C640
R618
GSMTX_IN
GSM_PA_PWR_CTL
R600
TX_EN
BAND_SEL
DCSTX_IN
C610
C611
TXVCO
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