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Flow Chart of Troubleshooting
Power On
RX_TX_QN
RX_TX_QP
RX_TX_IN
RX_TX_IP
REF_ON_PMU
D_REF_CLK
BT_CLK
C124
C121
C117
C114
C112
C111
C137
OSC100
4
1
C142
C131
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NC
US|EGSM_TX
21
TEST_A
PA_VCTRL
22
TEST_B
TX_VCTRL
23
NC
U103
VDD_RF
24
NC
VDD_LO
25
VDD_BB
VCO_SYN_REG
26
Q-
VDD_SYN
27
Q+
VDD_IO
28
I-
DATA
29
I+
CLK
30
3
2
C101
C137
9-2
10
9
8
7
6
5
4
3
2
1
C134
RF_EN
VCC_SYN_2.8V
C140
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