Samsung SGH-M300 Service Manual page 38

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Flow Chart of Troubleshooting
C105
CLK13M_TR
C108
CLK13M_MC
C110
CLK13M_YMU
R108
CLK13M_AIT701X
RF_EN
R107
R102
RTX_IP
R103
RTX_IN
R104
RTX_QP
RTX_QN
SERDAT
SERLE
SERCLK
XOENA
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VCCD_2.9V
VRF_2.9V
9
10
11
12
13
14
15
16
XOUT
8
7 BIP
RFIPN
BIN
6
RFIDP
5 BQP
U101
RFIDN
4 BQN
RFIEP
3 SDIO
RFIEN
RFIAP
1 SCLK
RFIAN
35
34
33
32
31
30
29
28
27
26
OSC101
C121
C122
3
4
HOT
GND2
GND1
HOT
2
1
3-23
C102
GSM_PAM_IN
C104
DPCS_PAM_IN
RFIPP
PCS_LNA_IN_P
17
PCS_LNA_IN_N
18
DCS_LNA_IN_P
19
DCS_LNA_IN_N
20
GSM_LNA_IN_P
21
GSM_LNA_IN_N
22
23
24
25
R105
AFC
C119
C123

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