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L101
3
3
2
2
1
1
L103
C141
ANT100
DPCS_TX_OUT
GSM_TX_OUT
GSM_ANT_SEL0_N
GSM_ANT_SEL1_N
GSM_ANT_SEL2_N
GSM850_RX_P
GSM900_RX_P
DCS_RX_P
PCS_RX_P
GSM850_RX_N
GSM900_RX_N
DCS_RX_N
PCS_RX_N
3G_RX_ON
3G_RX_I_P
3G_RX_P
3G_RX_N
3G_RX_I_N
3G_RX_Q_P
3G_RX_Q_N
GSM_TX_IN
DPCS_TX_IN
3G_PAM_ON
TX_EN
3G_TX_AGC
3G_TX_I_P
3G_TX_I_N
3G_TX_P
3G_TX_N
3G_TX_Q_P
3G_TX_Q_N
RFS100
C100
L102
9
PCN|PCS_TX
11
GSM850|EGSM_TX
6
CTRL3
5
CTRL2
4
CTRL1
G G
C119
C120
C121
2
3
VRF_2.9V
VRF_2.9V
VEDGE_1.5V
C214
C211
R204
C213
R205
C222
C223
L209
C218
VSD2_OUT_1.8V
C229
H1
RX1
F1
RX2
D1
RX3
B1
RX4
J1
RX1X
G1
RX2X
E1
RX3X
C1
RX4X
F8
RXBAND1
E10
RXBAND2
D10
RXBAND3
U202
A6
RXI
E11
RXINH
F11
RXINHX
C11
RXINL
D11
RXINLX
G11
RXINM
H11
RXINMX
C6
RXIX
A4
RXQ
A5
RXQX
L7
TX1
L8
TX2
H10
TXBAND1
G10
TXBAND2
F10
TXBAND3
K3
TXEN
H5
TXGC
K4
TXHSMODE
K10
TXI
J9
TXIX
L5
TXOUTH
L6
TXOUTHX
L3
TXOUTL
L4
TXOUTLX
L9
TXOUTM
L10
TXOUTMX
L2
TXQ
K1
TXQX
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Flow Chart of Troubleshooting and Circuit Diagrams
VTCXO_2.8V
L100
C101
MOD100
1
7
ANT
VDD
PCN_RX 16
PCN_RX
17
18
PCS_RX
19
PCS_RX
12
GSM850_RX
13
GSM850_RX
14
EGSM_RX
15
EGSM_RX
21
WCDMA2100
G
G
G G
G
G
8 10
23
24
20 22
VRX_2.9V
L208
VRF_2.9V
L210
C216
C219
C224
C231
VAUX_2.9V
C230
K2
FE1
H3
FE2
C235
A8
FSYSIN_3G
B10
FSYSIN_PM
F
C236
A9
FSYSOUT1
C9
FSYSOUT2
D9
FSYSOUT3
K9
I
J8
IX
H7
Q
H8
QX
E3
EN
D2
ENPGC
C7
EN_PM
B3
CLK
C2
CLKPGC
G9
CLK_PM
A2
DA
B2
DAPGC
H9
DA_PM
J11
LD
C3
MASTERON
J4
VBIAS
C5
VCO_RC
R208
1
NC
2
NC
A1
NC
A11
NC
L1
NC
L11
NC
10-31
L104
C102
C103
L105
L106
C108
C107
L107
L108
C112
C113
L109
L111
C122
C123
L112
UMTS_ANT
VRX_2.9V
VTX_2.9V
VTX_2.9V
C217
L213
L211
L212
C227
C228
C226
C225
C232
C233
BAND_SEL
CLK26M_RF
CLK26M_PMB
RTX_I_P
RTX_I_N
RTX_Q_P
RTX_Q_N
3G_SBST
SBST
3G_SBCK
SBCK
3G_SBDT
SBDT
3G_LOCK_DET
3G_MASTER_ON
R207
DCS_RX_N
DCS_RX_P
PCS_RX_N
PCS_RX_P
GSM850_RX_N
GSM850_RX_P
GSM900_RX_N
GSM900_RX_P
TX_EN
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