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Flow Chart of Troubleshooting
10-10
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VRF_2.9V
C224
L209
L210
L215
C218
C211
C205
L205
L207
C202
L203
WTX_2.9V
C208
L212
C210
WTX_2.9V
C214
C207
L201
L211
C201
C204
C203
1
G
G
3
4
G
G
6
G
8
G
9
5
RX
7
TX
DUF201
ANT
2
L206
L200
RF_OUT
5
4
VDD
1 VSHUTDOWN|BYP
MGA-645T6
Q202
3 GND
7
GND
NC
6
RF_IN
2
5
VREF
7 GND
GND
6
11
GND
RFIN 2
RFOUT
8
1
VCC1
VCC2
10
VCONT 4
PAM201
3
GND
9 GND
1
E1
4
E2
L213
Q200
2
B1
5
B2
6
C1
3
C2
C219
C215
VBAT
TA201
G
2
5
G
1
IN
OUT
3
4
OUT
F202
L208
C220
C213
4
IN
OUT
1
L204
F201
2
G
G
5
IN
3
C200
R200
C209
C221
C212
L222
L202
L214
R201
C217
TL_3G_LNAON
WCDMA_ANT
TA_3G_PAON
RT_3G_RXINP
RT_3G_RXINN
TR_3G_TXOUTN
TR_3G_TXOUTP
BA_3G_VMODE
C101
RFS101
A
2
3
C
1
G
4
G
L100
R116
R117
C116
C115
VRF_2.9V
L101
C117
PCS_RX
VDD
7
WCDMA2100
21
22
G
GSM850_RX
GSM850_RX
GSM850|EGSM_TX
11
PCN_RX
PCN_RX
9
PCN|PCS_TX
PCS_RX
G
2
3
G
8
G
G
10
G
23
24
G
G
20
MOD101
D5016
1
ANT
4
CTRL1
CTRL2
5
6
CTRL3
EGSM_RX
EGSM_RX
BF_2G_VC3
BF_2G_VC2
BF_2G_VC1
WCDMA_ANT
C101
C103
C
10
4
C105
C106
C107
C
10
8
C109
C110
C111
C112
C113
C114
C
11
5
C
11
6
C
11
7
C118
C119
C120
C
13
3
C135
C
20
0
C201
C202
C
20
3
C
20
4
C
20
5
C207
C
20
8
C209
C210
C
21
1
C
21
2
C213
C214
C
21
5
C
21
7
C218
C
21
9
C220
C221
C
22
2
C
22
3
C
22
4
C
22
5
C226
C
22
7
C
22
8
C229
C230
C231
C
23
2
C
23
3
C
23
4
C
23
5
C236
C
23
7
C238
C239
C
24
0
C241
C
24
2
C
24
3
C244
D
U
F2
01
SA
YZ
Y1
G
95
EA
0B
00
F2
01
F202
FPC
701
L1
00
L1
01
L1
02
L1
03
L1
04
L1
05
L1
06
L1
07
L2
00
L201
L202
L203
L2
04
L205
L206
L207
L208
L2
09
L2
10
L211
L2
12
L2
13
L2
14
L215
L2
16
L217
L2
18
L219
L2
20
L2
21
L2
22
MOD101
D5016
PA
M
10
1
R
F3
15
9
PA
M
20
1
W
S2
51
2-
SG
1
Q20
0
Q
20
2
R
10
3
R104
R
10
5
R10 6
R107
R
10
8
R109
R
11
6
R117
R
11
8
R119
R200
R
20
1
R202
R203
R204
R
21
0
R
FS
10
1
KM
S-
51
2
TA102
TA
20
1
TH201
U
20
1
PM
B6
95
2
Summary of Contents for SGH-L770
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