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Flow Chart of Troubleshooting
ANT100
GH71-06625A
1 1
2
2
3
3
RFS100
4
4
KMS-515
5
5
6
6
G
C
A
G
4
3
2
1
L101
C100
L102
L109
C101
F100
HWXR874-1
11
ANT
1
GSM850-RX1
14
2
VC1
VC1
GSM850-RX2
3
EGSM-RX1
10
4
VC2
VC2
EGSM-RX2
5
DCS-RX1
6
DCS-RX2
PCS-RX1
7
C111
PCS-RX2
8
C112
15
DCS|PCS-TX
DPCS_TX
17
GSM_TX
EGSM|GSM850-TX
G
G G
G G
G
G
9 12
13
16
18
19 20
REF_ON
AFC
R103
C121
+VDD_RX_TX_2.8V
R105
RFIC_RESET
C127
4
GND2
HOT
HOT
GND1
1
RF_EN
RF_DATA
RF_CLK
ANT101
GH71-06625A
1
1
2 2
3
3
4
4
5
5
6
6
L100
C115
L106
C113
C129
L107
C128
C106
L105
C104
C103
L104
C102
PON_3587_SYNTH
GND
28
XMODE
29
NC
XDIV
30
RFOH
AFC
31
VDD5
VDD2
U101
RFOL
VDD1
C124
AERO4221HN/1
RAMPOUT
XTAL2
RAMPIN
XTAL1
VDD4
XEN
VDD3
GND1
NC2
VIO
10
NC1
3
OSC100
TSX-3225(TN4-26412)
2
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C114
BAND_SEL
PON_PA
VBAT
MODE_SELECT
+VDD_RX_TX_2.8V
C107
C109
C118
C108
C122
C123
R104
RAMP
+VCC_SYN_2.8V
C125
C126
+VDD_IO_LOW_1.8V
RFIC_RESET
D_REF_CLK
C132
CAMERA_CLK26M
RX_TX_IP
RX_TX_IN
RX_TX_QP
RX_TX_QN
9-23
U100
AWT6172
21
20
19
18
C105
GND
GND
GND
GND
1 DCS|PCS_RFIN
17
DCS|PCS_RFOUT
2
16
BNAD_SEL
GND
3 TX_EN
GND
15
L110
C110
4 VBATT
GND 14
5
VMODE
GND 13
6
12
VRAMP
GND
L108
3.9PF
7 GSM_RFIN
11
GSM_RFOUT
VBIAS
GND
GND
8
9
10
C120
C119
C117
C116
SC1
SC2
SC3
SC4
SC5
SC6
1 1
1 1
1
1 1
1
1 1
1
1
2
2
2 2
2
2 2
2
2
2
2
2
3
3
3
3
3 3
3
3
3 3
3
3
ONBOARD-CLIP
ONBOARD-CLIP-1
ONBOARD-CLIP-1
ONBOARD-CLIP-1
ONBOARD-CLIP-1
ONBOARD-CLIP-1
DPCS_TX
GSM_TX
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