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Flow Chart of Troubleshooting
10-24
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ATT. 7.7dB
ATT. 7.7dB
C111
C109
L109
RFS100
2
A
C
1
G
3
4
G
39nH
L102
L103
R107
R106
C107
R103
L105
C110
R108
G
2 3
G
5
G
1
IN
4
OUT
F102
R104
C102
C101
L104
C115
ANT101
1
2
R102
R101
IN
OUT
3
4
OUT
C114
F100
G
2
G
5
1
TA100
C103
C104
R100
C108
L107
L108
F103
2
G
5
G
IN
1
3
OUT
OUT
4
2
5
G
1
IN
OUT
3
4
OUT
F101
G
L100
C113
VBAT
C105
C112
R105
L101
GND
RSVD
3
RX4
4
5
RX3
6
RX2
RX1
7
A
N
T
8
9
G
N
D
21
22
G
N
D
GSM_IN
23
24
G
N
D
VAPC
25
26
VBATT
27
BS2
BS1
28
29
14
G
N
D
15
G
N
D
G
N
D
16
G
N
D
17
G
N
D
18
G
N
D
19
MODE
2
20
G
N
D
DCS|PCS_IN
SKY77519-11
PAM100
1
_TXEN
WCDMA1
10
G
N
D
11
12
G
N
D
13
G
N
D
C100
C106
L106
GSM_TX_OUT
DPCS_TX_OUT
GSM_RX_P
DCS_RX_N
DCS_RX_P
PCS_RX_N
PCS_RX_P
UMTS_ANT
ANT_SEL0_N
VAPC
ANT_SEL2_N
ANT_SEL1_N
GSM_RX_N
close to pin68
8X8X0.9T
VRF_2.1V
VRF_2.1V
C248
VRF_2.7V
C257
ground
C247
C229
C252
C218
C265
C249
C216
F201
G
2
5
G
1
IN
OUT 3
4
OUT
C239
C269
33PF
C253
C262
L210
VRF_2.1V
VMSMB_2.6V
C259
C234
C242 C246
C263
VRF_2.1V
C220
C266
C250
68
T
X
_R
B
IA
S
69
G
N
D
_S
LU
G
7
VDDA2
70
N
C
71
N
C
8
NC
9
NC
60
V
D
D
A
2
61
V
D
D
A
2
62
V
D
D
A
2
63
T
X
_I
N
64
T
X
_I
P
65
T
X
_
Q
N
66
T
X
_Q
P
67
D
A
C
_
IR
E
F
53
V
D
D
A
1
54
V
D
D
A
2
55
LB
_R
F
_O
U
T
1
56
H
B
_R
F
_
O
U
T
1
57
LB
_R
F
_O
U
T
2
58
H
B
_R
F
_
O
U
T
2
59
H
B
_R
F
_
O
U
T
3
6
VDDA1
46
DCS_INP
47
DCS_INN
48
EGSM_INP
49
EGSM_INN
5
VTUNE1
50
GCELL_INP
51
GCELL_INN
52
P
D
E
T
_I
N
39
NC
4
VDDA1
40
NC
41
NC
42
NC
43
NC
44
GPCS_INP
45
GPCS_INN
31
W
P
R
X
LB
M
32
W
P
R
X
H
B
P
33
W
P
R
X
H
B
M
34
W
P
R
X
S
E
2_
O
U
T
35
WPRXSE1_OUT
36
WPRXSE2
37
NC
38
WPRXSE1
24
V
T
U
N
E
2
25
V
D
D
A
2
26
R
F
_O
N
27
V
D
D
A
2
28
W
B
_M
X
_I
N
P
29
W
B
_M
X
_I
N
M
3
VDDA1
30
W
P
R
X
LB
P
17
NC
18
N
C
19
N
C
2
TCXO
20
S
B
D
T
21
V
D
D
A
2
22
V
D
D
A
1
23
V
D
D
M
1
VDDA2
10
VDDA1
11
PRX_QP
12
PRX_QN
13
PRX_IN
14
PRX_IP
15
NC
16
NC
RTR6280
U200
R211
C241
C213
C256
C222
C223
C245
ground
C233 C227
C238
C261
C217
C235
C224
L208
C260
C228
L2
07
C255
C219
VRF_2.7V
TA201
TA200
R210
C244
R205
C240
L209
C232
C267
C254
R
20
9
C226
C215
C214
R206
R212
C221
VRF_2.7V
C264
C225
RTR_PWR_DET
T
X
_O
N
SBDT
U
M
T
S
_R
X
_N
DCS_RX_N
DCS_RX_P
PCS_RX_N
PCS_RX_P
D
A
C
_R
E
F
T
X
_Q
_P
T
X
_Q
_N
T
X
_I
_P
T
X
_I
_N
UMTS_RX
U
M
T
S
_R
X
_P
RTR_TCXO
RX_I_P
RX_I_N
RX_Q_N
RX_Q_P
UMTS_TX
GSM_RX_N
GSM_RX_P
UMTS_RX_N
GSM_TX_OUT
DPCS_TX_OUT
UMTS_RX_P