Table of Contents
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SGH-E850 Flow Chart of Troubleshooting
34
35
GND
36
GND
1
RXQN
2
RXIP
3
RXIN
4
TXIP
RTX_IP
5
TXIN
RTX_IN
6
RTX_QP
TXQP
7
TXQN
RTX_QN
C704
100PF
CLK13M_RF
R701
39
GSM_PAM_IN
R702
R703
120
120
C717
1NF
R708
R704
39
DPCS_PAM_IN
R705
R706
150
150
TX_BAND_SEL
TX_EN
R707
100K
TXPOWER
C718
C719
33PF
270PF
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VRF
10NF
C725
C703
1.5PF
33
32
31
28
27
26
25
24
23
22
30
29
L701
C705
24nH
1.5PF
21
RFIGN
20
RFIGP
C706
19
2.2PF
RFIDN
U700
18
L702
RFIDP
C708
5.6nH
17
2.2PF
RFIPN
16
RFIPP
15
GND
8
9
10
11
12 13 14
VRF
C707
22NF
VBAT
C713
C714
C715
100UF
4.7UF
10NF
6.3V
10V
43
42
48
GSM850/900IN
GSM850/900OUT
47
GND1GSM
DCS/PCSOUT
46 VCC1GSM
GND
GND
NC
1
GSMINTERGND
GND
37
DCS/PCSIN
GND
U701
GND
GND
GND
40
BANDSEL
GND
41
TXENABLE
GND
GND
45
VRAMP
GND
GND
18 19 20
21
35
39
1NF
C720
C721
C722
1NF
C723
10NF
100PF
1NF
C724
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C700
47PF
GSM_PAM_IN
DPCS_PAM_IN
C701
33PF
F700
C710
NC
L705
L708
2.2nH
2.7nH
C716
L706
1.5PF
NC
6
31
4
5
7
30
32
34
49
50
51
52
53
54
2-19
CN700
ANT
C727
C728
47PF
5PF
L700
L709
L707
100nH
NC
27nH
GSM_TX_EN
DCS_TX_EN
ANT700
ANTGND
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