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Flow Chart of Troubleshooting
9-2
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V_EXT_FET_BOOT
VIO
TA402
R450
D402
PZU5.6B
V_BAT
TA401
4
D401
3
1
2
TR402
1
2
5
6
G
3
TR403
1
3
2
VBAT
R433
VREG_TCXO_2.85V
1
2
3
4
5
U408
A
1
2
B
3
GND
5
NC
6
VCC
Y
4
U405
IF_CON_SENSE
ON_SW
PS_HOLD_PU
SYSEN
0
0
4
T
A
B
BH903
BOTHHO L
C426
0
0
5
C
3
9
5
C
7
0
6
C
8
0
6
C
C93
6
C93
7
C946
C947
1
0
4
D
nIN
T_
DP
RA
M
R330
R332
R407
5
1
4
R
R431
3
3
4
R
0
5
4
R
R500
8
0
5
R
R5
10
0
3
6
R
R927
TA501
TR403
0
0
3
U
1
0
3
U
4
0
4
U
5
0
4
U
U407
8
0
4
U
3
0
6
U
4
0
6
U
6
0
9
U
4
1
8
C
5
1
8
C
7
1
8
C
8
1
8
C
5
3
8
C
3
0
7
W
S
2
0
4
A
T
TR
402
U802
U803
U805
ZD
51
2
ZD513
3
0
7
D
Z