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Flow Chart of Troubleshooting
10-20
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9
0
4
C
6
5
H
C
2
N
V
ZD400
1
1
H
C
2
H
C
4
3
3
H
C
5
4
H
C
NC 21
22
NC
23
NC
NC 24
25
NC
NC 26
NC 27
3
3
4
4
5
5
6
6
7
7
8
8
9
9
14
14
15 15
16
16
17 17
18
18
19 19
2
2
20
20
IFC400
1
1
10
10
11
11
12
12
13
13
VUSB_5V
5
1
4
C
R404
VEXT_5V
R406
1
2
4
C
4
1
4
C
8
1
4
C
V_DC
9
1
4
C
2
N
V
ZD401
1
1
H
C
2
H
C
4
3
3
H
C
5
4
H
C
6
5
H
C
C453
VCC_3.0V
TA404
0
2
4
C
R407
R403
R428
6
7
OUT
_EN
10
_FLAG
3
GND
11
D
N
G
1
IN
4
IN
IN
5
12
NI
NC
8
9
NC
OUT
U409
2
R425
R401
R408
3
2
4
C
C470
L402
R402
3
1
4
C
6
2
4
C
R405
R426
RADIO_ANT
IF_CON_SENSE
EAR_CHECK
JTAG_VBUS
USB_DETECT
EAR_COM
D+
D-
EAR_MIC_P
EAR_MIC_N
EAROUT_R
EAROUT_L
SEND_END
nJACK_INT
RXD
TXD_TVOUT
JTAG_RXD
JTAG_IF_CON_SENSE