Samsung GT-M3710L, Service Manual

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Flow Chart of Troubleshooting
9-27
WI-FI
TP104
C101
TP101
C121
C103
L127
4
3
1
OSC100
2
TP102
VDD_PLL
VDD_PLL
VIN_LDO
C125
VDD_RADIO_PLL
P4
UART_RX
P
5
V
O
U
T
_
C
L
D
O
P
6
V
O
U
T
_
L
N
L
D
O
1
P7
SR_PALDO
P
8
S
R
_
V
D
D
B
A
T
3
S
R
_
A
V
D
D
2
P
5
P
9
VDD_AFE
N7
SR_PALDO
N
8
S
R
_
V
D
D
B
A
T
3
N
9
S
R
_
V
D
D
B
A
T
2
P1
USB20_DEV_DMNS
P
1
0
S
R
_
V
D
D
N
L
D
O
S
R
_
V
S
S
P
L
D
O
P
1
1
P
2
U
S
B
2
0
P
H
Y
_
A
G
N
D
_
P
A
D
P3
BTCX_TXCONF
N1
USB20_DEV_DPLS
N
1
0
S
R
_
P
V
S
S
1
N11
SR_VLX1
N
2
U
S
B
2
0
P
H
Y
_
G
N
D
P
L
L
_
P
A
D
N3
USB20PHY_MONPLL_PAD
UART_TX
N4
N
5
V
D
D
_
C
L
D
O
N
6
V
D
D
_
L
N
L
D
O
1
M
2
U
S
B
2
0
P
H
Y
_
A
V
D
D
3
3
_
P
A
D
M3
USB20PHY_MONCDR_PAD
M4
GPIO_8
M
5
A
V
S
S
_
L
D
O
M6
VREF_LDO
SR_PNPO
M7
M
8
S
R
_
P
A
V
S
S
M
9
S
R
_
A
V
S
S
L5
BT_REG_ON
L6
WL_REG_ON
L
7
V
D
D
_
L
N
L
D
O
2 L
8
V
O
U
T
_
L
N
L
D
O
2
L9
SR_TESTSWG
USB20PHY_RREF_PAD
M1
M
1
0
S
R
_
P
V
S
S
1
M11
SR_VLX1
K8
GPIO_0
K9
GPIO_2
L
1
U
S
B
2
0
P
H
Y
_
A
V
D
D
2
5
_
P
A
D
L
1
0
S
R
_
V
D
D
B
A
T
1 L
1
1
S
R
_
V
D
D
B
A
T
1
U
S
B
2
0
P
H
Y
_
A
V
D
D
1
2
_
P
A
D
L
2
L3
BTCX_STATUS
L4
BTCX_FREQ
K10
GPIO_6
K11
SDIO_CLK
K
2
V
D
D
IO
_
R
F
K3
BTCX_RF_ACTIVE
K
4
V
S
S
V
D
D
K
5
K
6
O
T
P
_
V
D
D
3
3 K
7
V
D
D
IO
J3
TCK
J4
JTAG_TRST_L
J5
RF_SW_CTRL_N_3
J6
RF_SW_CTRL_P_3
J7
AMODE_EXT_LNA_PU
AMODE_EXT_LNA_GAIN
J8
J9
GPIO_3
K1
TDO
H6
TMS
H7
GMODE_TX_PU
H8
RF_SW_CTRL_N_2
H9
RF_SW_CTRL_P_2
J1
AMODE_TX_PU
GPIO_7
J10
J11
SDIO_DATA_0
J
2
V
D
D
IO
_
R
F
G
9
V
D
D
IO
_
S
D
H1
WRF_AFE_PAD_TEST_OP
H10
GPIO_1
H11
SDIO_DATA_1
H2
WRF_AFE_PAD_TEST_ON
WRF_AFE_PAD_TSSI_A
H3
H
4
W
R
F
_
B
B
P
L
L
_
V
D
D
_
1
P
2
H5
TDI
G11
SDIO_DATA_2
G
2
W
R
F
_
A
F
E
_
P
A
D
_
A
V
D
D
_
R
X
A
D
C
G
3
W
R
F
_
A
F
E
_
P
A
D
_
A
V
D
D
_
A
U
X
G
4
W
R
F
_
B
B
P
L
L
_
G
N
D
_
1
P
2
G5
GMODE_EXT_LNA_PU
GMODE_EXT_LNA_GAIN
G6
G7
RF_SW_CTRL_N_0
G8
RF_SW_CTRL_P_0
F4
WRF_GPIO_OUT1
F
5
V
S
S
F
6
V
D
D
IO
F
7
V
D
D
F8
SDIO_DATA_3
WRF_EXTREFIN
F9
G
1
W
R
F
_
A
F
E
_
P
A
D
_
A
V
S
S
_
R
X
A
D
C
G
1
0
V
D
D
IO
_
S
D
E
6
W
R
F
_
V
D
D
V
C
O
_
1
P
2
E
7
W
R
F
_
G
N
D
V
C
O
_
1
P
2
E
8
W
R
F
_
V
D
D
C
A
B
_
1
P
2
F1
WRF_AFE_PAD_TEST_IP
F10
EXT_POR_L
GPIO_9
F11
F2
WRF_AFE_PAD_TEST_IN
F3
WRF_AFE_PAD_IQADC_VREF
D
9
W
R
F
_
G
N
D
P
F
D
C
P
_
1
P
2
E1
WRF_RFOUTP_G
E10
XTAL_PU
E11
SDIO_CMD
E
2
W
R
F
_
G
N
D
P
A
G
_
3
P
3
WRF_AFE_PAD_TSSI_G
E3
E4
WRF_GPIO_OUT2
E
5
W
R
F
_
G
N
D
L
O
_
1
P
2
C
5
W
R
F
_
V
D
D
L
O
_
1
P
2
C
7
W
R
F
_
V
D
D
A
_
1
P
2
C
8
W
R
F
_
V
D
D
D
_
1
P
2
C
9
W
R
F
_
V
D
D
P
F
D
C
P
_
1
P
2
D
1
W
R
F
_
V
D
D
P
A
G
_
3
P
3
V
S
S
D
1
0
D
1
1
V
S
S
X
O
D
8
W
R
F
_
G
N
D
A
_
1
P
2
B4
WRF_RFINN_A1_XFMR
B
5
W
R
F
_
G
N
D
R
X
_
1
P
2
B
8
W
R
F
_
G
N
D
D
_
1
P
2
B9
WRF_RES_EXT
C
1
W
R
F
_
G
N
D
P
A
A
_
3
P
3
V
D
D
C
1
0
C11
XTALOUT
C
2
W
R
F
_
G
N
D
P
A
G
_
3
P
3
A4
WRF_RFINP_A1
A
5
W
R
F
_
V
D
D
R
X
_
1
P
2
A6
WRF_RFINP_G1
A8
WRF_RFINN_G1_XFMR
A
9
W
R
F
_
G
N
D
C
A
B
_
1
P
2
W
R
F
_
V
D
D
P
A
A
_
3
P
3
B
1
B
1
1
V
D
D
X
O
B2
WRF_RFOUTP_A
1
N
C
2
N
C
A
1
W
R
F
_
G
N
D
P
A
A
_
3
P
3
XTALIN
A10
A
2
W
R
F
_
G
N
D
T
X
_
1
P
2
A
3
W
R
F
_
V
D
D
T
X
_
1
P
2
U101
VDD_AFE
R103
VDD3_3
C104
C100
C108
C105
TP103
VDD3_3
C110
VDD_PLL
VIN_LDO
VBAT
C107
C102
R104
VDD3_3
L100
C109
C124
C114
VBAT_WIFI
VDD_RADIO_PLL
3.0V_DIG
L101
VBAT_WIFI
C123
C115
R100
3.0V_DIG
R102
R101
C116
C106
COEX2
SD2DAT2_WIFI
TR_SW_TX_PU
TR_SW_RX_PU
SD2DAT1
TR_SW_BT
SD2DAT0
SD2CLK_WIFI
COEX0
WIFI_HOST_WAKE
COEX1
WIFI_RX
WIFI_TX
SD2CMD_WIFI
WIFI_RESET
SD2DAT3_WIFI
C100
C
1
0
1
C102
C
1
0
3
C104
C105
C106
C107
C108
C109
C110
C
1
1
4
C115
C116
C
1
2
1
C123
C124
C
1
2
5
C134
C135
C136
C137
C
1
3
9 C143
C
1
4
6
C147
C
1
4
8
F102
L100
L101
L127
L128
L
1
2
9
OSC100
R100
R
1
0
1
R
1
0
2
R
1
0
3
R104
R110
R111
R
1
1
4
R
1
1
5
TP101
TP102
U101
U
1
0
3