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Flow Chart of Troubleshooting
7-
2
2.8V
1.8V
2.15V
Typical 3.7V
2.8V
1.9V
2.6V
2.6V
2.9V
C411
C410
44
_SIMRSCD
_
S
IM
R
S
H
C
7
V
C
H
G 32
V
IN
T29
V
S
A
V
E30
_
IR
Q
10
_
O
N
K
E
Y 27
_
R
E
C
1
1
_REC2
13
_
R
S
T
H
C
11
SIMCKCD
43
S
IM
C
K
H
C
8
SIMD3VBAT
40
SIMEN
45
SIMIOCD
42
S
IM
IO
H
C
9
SIMVCC
41
V
B
A
T 31
R
E
F
C 28
RF12VBAT
23
22
RF1VDD
RF2VDD
24
S
C
L
2
SCN
38
SCP
37
S
D
A
3
LPVDD
19
M
IC
B
IA
S
12
NC 53
54
NC
O
S
C
I 26
O
S
C
O 25
P
W
R
E
N
1
6
P
W
R
E
N
2
5
GPO1
48
GPO2
47
46
GPO3
18
HCVBAT
HCVDD
17
IOD2VBAT
15
14
IOVDD
20
LPD1VBAT
C
P
V
D
D 35
D1VDD
21
16
D2VDD
D3VDD
39
GND 49
50
GND
GND 51
52
GND
U400
C
H
G
C
U
R
/B
A
T
M
A
X
34
C
H
G
D
R
V 33
C
L
K
3
2
K
4
C
P
V
B
A
T 36
OSC400
V400
C413
R406
C408
C423
C417
C412
0
R405
C415
POS
C426
BAT400
NEG
C425
R408
R404
C424
C416
C406
C407
C409
RESET_BT
+VDD_IMAGE
RSTON
BU_RST
VBAT
MIC_BIAS
SIMIO
+VDD_IO_LOW
+AVDD_HFA
+VDD_RX_TX
+VCC_SYN
+AVDD
+VDD_IO_HIGH
ONKEYN
IT_PMU
Power On
R404
32KHz clock
C408
VINT
C424(VDD_IO_HIGH)
C425(VDD_IO_LOW)
