Samsung SGH-C250, Руководство по обслуживанию, Страница: 16 / 55

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-2
This Document can not be used without Samsung's authorization
VBAT
VRTC_3V
C109
C117
VBAT
C118
C120
VCCD_2.9V
C124
C113 C115
TR103 1
3
2
C114
C100
C123
VCCD_2.9V
VCCA_2.9V VRF_2.9V
C112
Q
A
N
E
O
X
1
D
C12
A10
VREF
N
G
E
R
V
4
1
R
P
G
E
R
V
3
1
M
VRTC H11
VSIM K12
1
S
S
V
5
G
2
S
S
V
4
K
3
S
S
V
2
R
4
S
S
V
6
P
M
C
V
X
V
3
1
R
A12
VL4S_A
VL4S_B B11
VL5S_A D10
C9
VL5S_B
VLDO_1 G11
VLDO_2 J12
VLDO_3 A13
VLDO_4 B12
VLDO_5 B10
VLDO_6 A14
VLDO_7
VDD34 C11
5
D
D
V
0
1
C
76
D
D
V
31
B
B
D
D
V
6
A
D
D
D
V
11
N
V
D
D
V
1
1
L
1
OI
_
D
D
V
5
N
2
OI
_
D
D
V
4
J
L
T
C
O_
D
D
V
4
C
VEXT E14
VIB_DRV F15
K11
P
X
T
7
E
N9
UP_CLK
UP_IO P10
UP_RST R10
VACC F14
VBAT E13
1
D
D
V
3
J
VDD12 J13
2
D
D
V
3
M
3
D
D
V
6
N
6
C
P
Q
X
T
X
R
7
C
SCLK_PSC L8
M7
SDI_PSC
SDO_PSC N7
C2
SERCK
C1
SERDA
B1
SERLE1
SERLE2
A2
SIM_CLK K14
SIM_IO J11
SIM_RST
RESETN_CSP
R3
O_
T
E
S
E
R
9
K
RING_DRV F13
9
L
D
V
S
R
0
1
N
2
D
V
S
R
RTC_ALMN H10 K
L
C_
C
T
R
4
N
RWN
L2
NI
X
T
X
R
6
D
PI
X
T
X
R
7
D
N
Q
X
T
X
R
F5
OCTL4
A4
G6 OCTL5
OCTL6
B3
A3
OCTL7
F
U
B_
1
W
S
P
7
L
P
E
E
K
_
R
W
P
9
M
N1
W
S
_
R
W
P
5
1
C
2
W
S
_
R
W
P
4
1
C
1
F
E
R
A
R
6
B
2
F
E
R
A
R
5
B
5
1
P
P
T
U
O
CI
M
5
1
N
NC E5
D15
NC3
E6 NC4
1
5
C
N
6
C
N
2
7
C
N
5
P
31
D
8
C
N
E10
NC9
C5 OCTL1
OCTL2
L
T
C
O_
D
N
G
4
B
1
C
S
P_
D
N
G
51
B
2
C
S
P_
D
N
G
51
K
Q
R
T
NI
0
1
L
L3 I|O
LED1_DRV G13
LED2_DRV G12
C
M
6
R
N
NI
CI
M
4
1
M
P
NI
CI
M
4
1
N
N
T
U
O
CI
M
71
S
D
N
G
01
K
2
S
D
N
G
8
F
3
S
D
N
G
9
F
4
S
D
N
G
0
1
F
5
S
D
N
G
7
G
6
S
D
N
G
8
G
7
S
D
N
G
9
G
8
S
D
N
G
01
G
9
S
D
N
G
6
H
31
P
V
D
N
G
R
U
C
H_
D
N
G
1
1
F
6
F
D
D
N
G
0
1
M
Q
D
N
G
8
E
1
S
D
N
G
7
F
01
S
D
N
G
7
H
11
S
D
N
G
8
H
21
S
D
N
G
9
H
31
S
D
N
G
7
J
41
S
D
N
G
8
J
51
S
D
N
G
9
J
61
S
D
N
G
01
J
DB15 D2
DB2
K3
J5 DB3
DB4
J6
DB5
H5
G3 DB6
DB7
G4
DB8 F4
DB9
F1
R
T
NI
D
3
P
B
D
N
G
K
CI
A
D
4
R
I
DI
A
D
6
L
O
DI
A
D
6
M
N
RI
A
D
4
P
DB0
K1
K2
DB1
DB10
F2
DB11
F3
DB12
E2
E3 DB13
DB14
D3
2
1
P
P
B
T
U
O
A
2
1
R
N
NI
X
U
A
4
1
L
P
NI
X
U
A
5
1
M
N
T
U
O
X
U
A
3
1
L
P
T
U
O
X
U
A
3
1
K
CH_BDRV E11
CH_ISEN F12
CH_RES D14
CREF E9
K8
CSN_PSC
AB2
L5
AB3
N1
AB4
N2
M2 AB5
M1
AB6
K7 AB7
AB8
K5
C
F
A
9
D
N
A
T
U
O
A
2
1
N
P
A
T
U
O
A
1
1
P
N
B
T
U
O
A
UCP101
AB0
K6
P1 AB1
VCCB_2.9V
VRADIO_2.9V
C101
C116
VCCA_2.9V
C108
VCCD_2.9V
VCCD_1.8V
C102
VIB_DRV
SIM_RST
SIM_IO
VSIM
SIM_CLK
UP_SDO
UP_SCLK
UP_CS
BAND_SEL1
VREF
VIB_EN
N
NI
X
U
A
N
T
U
O
X
U
A
KEY_COL(2)
KEY_ROW(0)
RTCALARM
UP_SDI
SIMCLK
SIMDATA
SIMRST
P
B
T
U
O
A
N
B
T
U
O
A
K2
3
K
L
C
C
M_
M3
1
K
L
C
N
O_
R
W
P
N
O_
GI
J
P
NI
CI
M
N
NI
CI
M
P
T
U
O
CI
M
N
T
U
O
CI
M
P
NI
X
U
A
P
T
U
O
X
U
A
TX_EN
RF_EN
VMOD_EN
XOENA
C
F
A
INTRQ
PWR_KEEP
RST
T
NI
_
P
S
D
C
P
A
V
PI
X
T
R
NI
X
T
R
P
Q
X
T
R
N
Q
X
T
R
P
A
T
U
O
A
N
A
T
U
O
A
DSP_AB(0:8)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)
DSP_IO
DSP_RWN
FLASH_RESET
SERLE
SERDAT
SERCLK
DSP_DB(0:15)
DSP_DB(15)
DSP_DB(14)
DSP_DB(13)
DSP_DB(12)
DSP_DB(11)
DSP_DB(10)
DSP_DB(9)
DSP_DB(8)
DSP_DB(7)
DSP_DB(6)
DSP_DB(5)
DSP_DB(4)
DSP_DB(3)
DSP_DB(2)
DSP_DB(1)
DSP_DB(0)
KEY_BL1
②
④
③
①
⑤
⑥