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Flow Chart of Troubleshooting
10-23
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<VCTCXO>
L212
OUT
F201
G
2
5
G
1
IN
3
OUT
4
R213
C225
R209
R208
C223
VCC_RX_2.8V
VCC_RX_2.8V
C230
VCC_TX_2.8V
VDD_IO_LOW_1.8V
VGACTL
7
T
X
IA
8
T
X
IB
9
T
X
Q
A
1
0
T
X
Q
B
T
X
_1
4
6
V
C
C
L
O
T
X
VCCRX
31
40
VCCTX
2
2
V
D
D
2
4
V
D
D
L
O
R
X
11
N
C
7
N
C
8
2
N
C
9
3
REFIN
15
38
RF_DAC1
RF_DAC2
3
9
17
RXIA
18
RXIB
RXQA
19
20
RXQB
T
S
T
2
1
2
8
5
N
C
11
N
C
12
2
6
N
C
13
2
5
2
3
N
C
14
16
NC15
NC2
42
37
NC3
34
NC4
33
NC5
32
NC6
3
0
13
CLK
12
DATA
14
EN
41 GND1
G
N
D
T
X
1
2
7
L
N
A
1_
IN
L
N
A
1_
O
U
T
2
9
35
MIX1_A
36
MIX1_B
43
NC1
N
C
10
U201
C226
C235
C217
L214
R214
C231
C224
L218
RF_DAC2
LNA_IN
3G_TX
RF_CLK_3G
RF_DATA_3G
RF_EN_3G
D_REF_CLK
QRX_N
ITX_P
ITX_N
QTX_P
QTX_N
QRX_P
IRX_N
IRX_P
26MHZ
VCC_RX_TX_2.8V
6
3
0
3
X
E
N
X
M
O
D
E
29
8
XOUT
35
X
T
A
L
1
34
X
T
A
L
2
_PDN
19
_RES
9
1
_SEN
RFIPP
R
F
O
H
17
15
R
F
O
L
SCLK
3
SDIO 2
33
V
D
D
1
32
V
D
D
2
11
V
D
D
3
12
V
D
D
4
V
D
D
5
16
V
IO
10
X
D
IV
38
N
C
2
13
R
A
M
P
IN
14
R
A
M
P
O
U
T
RFIAN
27
RFIAP
26
23
RFIDN
22
RFIDP
25
RFIEN
24
RFIEP
RFIPN
21
20
A
F
C
31
6
BIN
7
BIP
BQN
4
5
BQP
G
N
D
28
37
G
N
D
1
18
N
C
N
C
1
39
AERO4221HN/1
U100
C100
VCC_RX_TX_2.8V
C111
C107
R102
VCC_RX_TX_2.8V
R103
C113
0
C126
VDD_IO_LOW_1.8V
C101
C103
3
OUT
VCC
4
1 VCONT
OSC401
2
GND
5
N
C
7
N
C
N
C
8
N
C
6
C115
R105
C117
C106
VCC_SYN_2.8V
C110
D_REF_CLK
AFC
BT_CLK_REQ
D_REF_CLK
RAMP
GSM_RXM_850
GSM_RXP_850
DCS_PCS_TX
GSM_850_900_TX
RF_CLK
RF_EN
BT_CLK_26M
RF_DATA
PON_4220
BB2G_REF_CLK
IRX_TX_P
QRX_TX_N
QRX_TX_P
DCS_RXM
DCS_RXP
GSM_RXM_900
GSM_RXP_900
PCS_RXM
PCS_RXP
RAMP_PAM
IRX_TX_N