Samsung SGH-M310 - Page 44

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Flow Chart of Troubleshooting
10-6
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2
0
2
C
3
0
2
C
C204
5
0
2
C
C206
C207
C208
C209
C210
C211
3
1
2
C
C214
C215
C216
1
2
2
C
2
2
2
C
C223
C224
0
0
3
C
C301
C302
C303
4
0
3
C
C305
6
0
3
C
C307
8
0
3
C
C309
C310
C311
C312
C313
C314
C315
C316
7
1
3
C
8
1
3
C
C319
C320
C321
2
2
3
C
3
2
3
C
4
2
3
C
5
2
3
C
6
2
3
C
7
2
3
C
C328
0
3
3
C
C331
2
3
3
C
C337
8
0
4
C
0
1
4
C
1
1
4
C
C412
3
1
4
C
6
1
4
C
0
2
4
C
1
2
4
C
1
3
6
C
G106
0
0
3
L
OSC300
R200
1
0
2
R
2
0
2
R
3
0
2
R
R204
R205
R206
8
0
2
R
9
0
2
R
0
1
2
R
1
1
2
R
2
1
2
R
3
1
2
R
4
1
2
R
R221
3
2
2
R
R224
R225
R229
0
3
2
R
0
0
3
R
1
1
3
R
4
1
3
R
9
0
4
R
0
1
4
R
2
1
4
R
3
1
4
R
4
1
4
R
5
1
4
R
6
1
4
R
R417
8
1
4
R
9
1
4
R
R425 R426
4
R522
T
U
O
TA409
9
1
4
A
T
0
0
2
U
2
0
3
U
U
C
D
3
0
0
U
C
P
2
0
0
0
0
2
E
M
U
VOL_DOWN
C630C632C633C634
S
I
M
6
0
0
VR605
VR60 6 VR607
VR608
VR609
8
0
5
D
Z
ANT
SPK
SIM
GSM_RX
GSM_TX
DCS/PCS_RX
DCS/PCS_TX
FM_RADIO
MAIN MIC
EAR SPK
EAR MIC
POWER ON
CLK
C316
C305
C300
C306
C303
C321
C309
C319
C312
C318C317
V_BATT
VCCD_1.8V
V_BATT
VCCA_2.9V
VRF_2.9V
C323
RTC_CLK
R3
RESETN
R4
SYSCLKEN
R6
VCCD_2.9V
P3
OI
_
D
D
V
4
P
RESET_O
P5
PWR_KEEP
P6
SDI_PSC
R10
LO_MONO1_OUT_N
R12
HI_MONO_OUT_N
R13
HI-MONO_OUT_P
R14
RXTXEN
R2
CNTL_EN_CSP
N9
P1
CNTL_DAT_CSP
SCLK_PSC
P10
LO_MONO1_OUT_P
P11
C
N
2
1
P
C
N
3
1
P
R
K
P
S
D
D
V
5
1
P
SCUSTB
D
D
V
2
1
N
R
K
P
S
D
N
G
4
1
N
LO_MONO2_OUT_N
N15
RXTXDATA
N2
SCAN
N4
UP_CLK
N5
SYSCLK
N6
AINT
N7
AOCTL1
M2
AOCTL0
M3
UP_RST
M6
D
D
V
7
M
SDO_PSC
M9
D
D
V
1
N
D
D
D
V
0
1
N
D
D
N
G
1
1
N
VIB_RNG_EN
L7
OI
_
D
D
V
8
L
DINT
L9
L
T
C
O
A
_
D
N
G
1
M
CSN_PSC
M10
C
N
3
1
M
C
N
4
1
M
V
D
N
G
5
1
M
S
S
V
PSW1_BUF
L10
V
D
D
V
1
1
L
LO_MONO2_OUT_P
L13
VAVCM
L14
AOCTL3
L2
AOCTL2
L3
TXPSTB
L5
UP_IO
L6
B
D
D
V
2
K
RXTXQN
K3
RXTXQP
K4
L
T
C
O
A
_
D
D
V
5
K
S
S
V
6
K
SCANTST
K7
S
S
V
8
K
9
K
8
J
S
D
N
G
9
J
B
D
N
G
1
K
VAMICRTN
K10
VAVCMRTN
K11
VAREF
K12
VAMICREF
K13
AUX_IN_R
K14
AUX_IN_L
K15
VAREFRTN
C
N
2
1
J
J13
MIC1_IN_P
RXTXIP
J3
RXTXIN
J4
RAREF1
J5
RAREF3
J6
S
D
N
G
7
J
S
D
N
G
C
N
1
1
H
TXP
H5
RAREF2
H6
S
D
N
G
7
H
S
D
N
G
8
H
S
D
N
G
9
H
S
D
N
G
0
1
J
J11
X2RTC
G3
G4
X1RTC
AFC
G5
S
D
N
G
6
G
S
D
N
G
7
G
S
D
N
G
8
G
S
D
N
G
9
G
S
D
N
G
0
1
H
S
D
N
G
6
F
S
D
N
G
7
F
S
D
N
G
8
F
S
D
N
G
9
F
S
D
N
G
0
1
G
MIC2_IN_P
G11
MIC2_IN_N
G12
MIC1_IN_N
G13
VLDO_AUX1
F12
F13
VAVCMLSH
MIC_B_D
F14
C
S
P
_
D
N
G
5
1
F
VREF
F2
VRFLDO_2
F3
Q
D
N
G
4
F
VRTC
F5
PWR_SW2
E5
E6
SIM_IO
R
U
C
H
_
D
N
G
7
E
RING_DRV
E8
VIB_DRV
E9
CREF
F1
S
D
N
G
0
1
F
S
D
N
G
1
1
F
D7
LED1_DRV
LED3_DRV
D9
S
D
N
G
0
1
E
X
U
A
T
A
B
V
1
1
E
D
U
A
T
A
B
V
3
1
E
VLDO_AUD
E14
2
E
F
R
T
A
B
V
VRFLDO_1
E3
ADC_AUX8
D1
HV_CHRG
D10
VLDO_COREC
D13
VLDO_AUX2
D14
C
B
1
D
D
V
5
1
D
ADC_AUX9
D2
C
N
3
D
VLDO_2
D6
C12
A
1
D
D
V
4
1
C
VLDO_COREA
C15
ADC_AUX7
C2
PWR_SW1N
C4
VSIM
C5
2
1
T
A
B
V
6
C
LED2_DRV
C7
C
C
A
V
9
C
VLDO_COREA_S
ADC_AUX3
B3
ADC_AUX2
B4
B5
SIM_RST
SIM_CLK
B6
ADC_AUX6
C1
USB_CHRG
C10
C
S
P
_
D
N
G
1
1
C
VLDO_COREB
3
A
A4
ADC_AUX1
VLDO_1
A6
ADC_AUX5
B1
T
A
B
V
0
1
B
BATKELV
B11
FBSW
B12
LX
B13
B15
C
N
1
C
N
2
R
U
C
H
_
D
N
G
0
1
A
T
X
E
V
2
1
A
W
S
_
D
N
G
3
1
A
W
S
T
A
B
V
4
1
A
ADC_AUX4
A2
C
S
P
_
D
N
G
UCD300
C324C322
33K,1%
TH300
NTCCM10054BH103HC
R301
C315C314
C329
BAT300
2
1
R309
3
21
OSC300
C328
VRF_2.9V
VBT_1.8V
C307
VCCD_1.2A
C310
C330
V_BATT
C311
VCCD_1.8V VCCA_2.9V
C304C301
C327
C302
C308
R300
C320
L300
R302
A
2
.
1
_
D
C
C
V
_
P
T
C325
C326
VCCD_2.9V
GND_SW
GND_SW
ICHRG
LO_MONO1_OUT_P
SCUSTB
RSTPWR_KEEP
SDI_PSC
LO_MONO1_OUT_N
HI_MONO_OUT_N
HI_MONO_OUT_P
RTX_EN
RTC_CLK
FLASH_RST
CLK_REQ
GND_SW
SIM1_DAT
VIB_RING_EN
DINT
CSN_PSC
SIM1_RST
SDO_PSC
RTX_DAT
SIM1_CLK
26MHZ_ABB
AINT
CNTL_EN_CSP
CNTL_DAT_CSP
SCLK_PSC
AFC
VAPC
MIC1_IN_P
RTX_I_P
RTX_I_N
VAMICREF
RTX_Q_N
RTX_Q_P
PSW1_BUF
TXPSTB
KEY_BL1
JIG_ON
SIM_IO
VMOTMIC2_IN_P
MIC2_IN_N
MIC1_IN_N
GND_SW
DCDC_OUT
VLDO_COREA_S
SIM_RST
SIM_CLK
DCDC_OUT
PWR_ON
VSIM
SIM CON
C631 :: Placed near ABB
C633
N
C
7
8
N
C
9
N
C
N
C
1
0
V
C
C
1
2
V
C
C
5
V
P
P
SIM600
C
L
K
3
G
N
D
4
I/O
6
C634C630 C632C631
SIM_RST
VSIM
OI_MISKLC_MIS