Samsung SGH-E720 Service Manual page 21

SGH-E720 Flow Chart of Troubleshooting
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GND
XIN
VDD
_PDN RXQP
SDO XOUT
_SEN
SCLK DIAG2
SDI DIAG1
RFOG
RFOD
GND
GND
GND
GND
GND
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34
33
GND
32
VDD
31
GND
30
GND
29
GND
28
27
26
XEN
25
24
23
22
R123
2-18
1 2 3 4 5 6
21 GND
20 VAPC GND 7
19 RSVD GND 8
18 ENABL E GND 9
17 VBATT GND 10
16 15 14 13 12 11
7 5
9
2 VC
ANT
6
4 VC
8
10 VC
12
C108
11 1 3
G
6
G
5
G
4
C
3
A
2
G
1