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Flow Chart of Troubleshooting
7-30
C116
C115
L107
+VDD_SLEEP_2.9V
+VCC_SYN_2.8V
C119
L108
L103
PCS_RX1
5
6
PCS_RX2
VC1
10
12
VC2
VC3
9
ANT101
8
ANT
DCS_RX1
3
4
DCS_RX2
DCS|PCSTX
13
11
EGSMTX
EGSM_RX1
1
2
EGSM_RX2
7
G
MODULE1
C111
R116
R114
R120
R110
TP100
R117
0
R102
R106
0
C125
C121
L109
C138
C136
C135
C127
C128
C132
C133
C129
C130
C131
R113
+VCC_SYN_2.8V
C137
C120
R101
C123
C109
C106
C108
C110
R105
R104
R108
R109
R103
R107
DCS/PCSOUT
10
GND
GND
5
GSMIN
7
8
GSMOUT
3
TXEN
VBATT
4
6
VRAMP
U101
2
BAND
1
DCS/PCSIN
9
C122
C124
C112
R100
C107
C113
0
L100
C100
4
VCC
VCON
1
R118
U102
2
GND
OUT
3
C126
R119
L105
C114
C105
C104
C102
L101
C117
ANT100
C139
R115
C103
C101
C118
J8
QOUT/QIN
J9
GNDMASH
+VDD_RX_TX_2.8V
H9
LE
J1
GNDLNA
J2
VCCOPLL
J3
VCCTXVCO
J4
TXOUTD
J5
TXOUTG
J6
GNDTXVCOG2
J7
IOUT/IIN
H1
GSM0LNAIB
H2
GNDOPLL
H3
GNDTXVCOD
H4
GNDTXVCOB
H5
GNDTXVCOG1
H6
VCCTXVCOG
H7
IOUTB/IINB
H8
QOUTB/QINB
F1
GSM1LNAIB
F2
GSM1GSM0GND
F8
CLK
F9
SDATA
G1
GSM0LNAI
GSM0GND
G2
G8
VCCMASH
G9
CLKOUT1
D1
DCSLNAIB
D2
DCSGSM1GND
D8
DIVON
D9
CLKOUT2
E1
GSM1LNAI
E2
GND
E8
GNDCLK
E9
VCCCLK
B7
GNDRFSYN
B8
GNDBUF1
B9
TCXOIN
C1
DCSLNAI
C2
PCSDCSGND
C3
GND
C8
CLK2CONT
C9
GNDBUF2
A8
VCCRFSYN
A9
VCCBUF
B1
PCSLNAIB
B2
PCSGND
B3
VCCMIX
B4
CAPIB
B5
CAPQB
B6
VCCRFVCO
2
NC
A1
PCSLNAI
A2
GND
A3
VCCLNA
A4
CAPI
A5
CAPQ
A6
VCCRFLO
A7
VCCBB
U100
1
NC
+VCC_SYN_2.8V
C134
L102
C141
R111
R112
C140
CN100
2
AC
3
G
1
G
4
VBAT
DCS
RAMP
TXON
RX_TX_IN
RX_TX_QN
RX_TX_IP
RX_TX_QP
PCS_RX_P
PCS_RX_N
DCS_RX_P
DCS_RX_N
EGSM_RX_P
EGSM_RX_N
D_REF_CLK
26M_CLK
VC3
PCS_RX_N
PCS_RX_P
RF_CLK
RF_DATA
RF_EN
AFC
J_ANT
VC2
VC1
DCS_RX_N
DCS_RX_P
EGSM_RX_N
EGSM_RX_P