Samsung SPH-A900 - Page 50

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Flow Chart of Troubleshooting
7-22
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C
1
3
7
C156
R117
R129
C154
R136
L101
C
1
6
8
C155
C
1
6
5
C138
R149
2.6DV_BT
R
5
1
5
C
1
6
2
R135
C
1
6
4
4
U
S
B
_
D
P
5
U
A
R
T
_
R
X
D
6
R
E
Q
_
C
T
R
L
7
E
E
P
R
O
M
_
C
L
K
|
C
O
E
X
_
3
8
V
D
D
_
I
O
9
G
N
D
U
S
B
_
D
N
30
UART_CTS_N
31
PCM_OUT
32
UART_RTS_N
33
PCM_IN
34
UART_TXD
35
VDD_CORE
36
GND
GND
37
R
E
S
E
T
_
N
2
3
T
X
_
P
U
_
T
D
D
_
N
2
4
G
N
D
2
5
P
C
M
_
S
Y
N
C
2
6
G
N
D
2
7
G
N
D
28
ANT
29
GND
3
BT_WAKE
16
TM0_HIGH
17
GND
18
GND
1
9
T
M
1
|
2
_
H
I
G
H
2
V
D
D
_
U
S
B
2
0
T
M
3
_
L
O
W
2
1
V
D
D
_
R
F
2
2
1
P
C
M
_
B
C
L
K
10
XTAL_PD|COEX_1
11
USB_DETACH|GPIO_7
12
LPO_IN
13
EEPROM_DATA|GPIO_6
14
HOST_WAKE
15
U104
C
1
6
7
C
1
5
8
C
1
6
3
B
T
_
T
X
D
C
1
6
1
VPD 1.8DV_BT
C
1
6
0
132
ANT100
2.6DV_BT
R116
C
1
3
6
1.8DV_BT
C
1
5
9
V_MSMC
C524
R106
C139
BT_CLK_EN
BT_CTS
AUX_PCM_DOUT_BT
BT_RXD
BT_RTS
A
U
X
_
P
C
M
_
S
Y
N
C
_
B
T
B
T
_
R
E
S
E
T
A
U
X
_
P
C
M
_
C
L
K
_
B
T
B
T
_
T
X
D
AUX_PCM_DIN_BT
HOST_WAKE
BT_WAKE
SLEEP_XTAL_OUT