![background image](http://html.mh-extra.com/html/samsung/sgh-s501i/sgh-s501i_service-manual_1191059043.webp)
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-
6
MP3_TEST
C218
C217
HP_CORE_1.57V
HP_CORE_1.57V
R203
HP_CORE_1.57V
VCCD_1.8V
R210
VCCD_1.8V
TCK
Y4
CLKR
Y5
D_A2
Y6
D_A7
Y7
D_RWN
Y8
D_IO
Y9
D_D1
Y17
TRSTN
Y18
TMS
Y19
D_INT0
Y2
RI0_PIO01
Y20
PIO19_PWRKEEP
Y21
PIO34_SPRXD2
Y22
PIO41_IRDATX
Y3
SPCLK0
W6
D_A3
W7
D_A8
W9
AVDBRU
Y11
D_D7
Y12
D_D9
Y13
D_D12
51
Y
C
N
Y16
ATDO_PWM2
41
W
C
N
5
1
W
C
N
W17
TEST2
W18
TEST3
W20
PIO20_SYSCLKREQ
W21
PIO42_IRDARX
3
W
R
C
C
V
W4
SPRXD0
32
V
81
D
D
V
V4
DTR0_PIO03
V5
DCD0_PIO44
V8
CEB_NOR1
V9
CEB_NOR0
W10
A_CS0N
W11
D_D5
W13
D_D15
1
V
O
C
C
V
V11
D_D4
V12
D_D8
V13
IOBIT1_PIO06
51
V
C
N
V16
TEST1
V19
PIO31_IRQ6
V20
PIO00_IRQ5
U19
IRQ4
02
U
R
C
C
V
12
U
U
C
C
V
U3
RTS0_PIO04
U4
CTS0_PIO29
U5
DSR0_PIO02
8
U
C
N
9
U
C
N
T3
TX0
T4
RX0_IRQ28
T6
INTO
7
T
C
N
11
U
C
N
31
U
C
N
51
U
C
N
61
U
C
N
7
R
C
N
9
R
S
S
V
71
T
C
N
81
T
C
N
2
T
81
D
D
V
02
T
U
C
C
V
12
T
U
Q
C
C
V
22
T
U
Q
C
C
V
R20
IRQ1
12
R
R
Q
C
C
V
22
R
U
Q
C
C
V
32
R
51
D
D
V
3
R
O
Q
C
C
V
R4
RX1_IRQ28
R5
ATDI_RTS1
R6
ATCK_CTS1
1
R
51
D
D
V
11
R
S
S
V
31
R
D_
A
S
S
V
51
R
S
S
V
71
R
C
N
R18
IRQ3
R19
IRQ2
2
R
O
Q
C
C
V
31
P
S
S
V
41
P
S
S
V
P19
SPFS1_PIO15
2
P
O
Q
C
C
V
12
P
O
C
C
V
22
P
R
Q
C
C
V
3
P
O
Q
C
C
V
P5
TX1
N3
KEYBRD3
N4
KEYBRD2
N5
KEYBRD1
N6
KEYBRD0
7
N
C
N
9
N
S
S
V
01
P
S
S
V
11
P
C
N
31
N
S
S
V
41
N
C
N
51
N
S
S
V
71
N
C
N
N18
SPTXD1_PIO16
N19
SPRXD1_PIO17
N20
SPCLK1_PIO18
12
N
O
C
C
V
M18
PIO43_MCIDAT0EN
M20
PIO24_MCIDAT3
3
2
M
81
D
D
V
M4
KEYBRD4
M6
KEYBRD5
01
N
S
S
V
11
N
S
S
V
21
N
S
S
V
L4
KEYBRD7
L5
KEYBRD9
L6
KEYBRD10
7
L
C
N
9
L
C
N
1
M
81
D
D
V
11
M
S
S
V
31
M
S
S
V
41
L
S
S
V
51
L
S
S
V
71
L
C
N
L18
PIO39_MCICMDEN
L19
PIO40_MCIDATEN
L20
PIO22_MCIDAT1
L21
PIO23_MCIDAT2
L3
KEYBRD6
K21
PIO08_MCICMD
K22
PIO21_MCIDAT0
K3
KEYBRD8
K5
KEYBRD11
01
L
C
N
11
L
S
S
V
21
L
S
S
V
31
L
S
S
V
7J
C
N
9J
S
S
V
01
K
S
S
V
11
K
S
S
V
31
K
S
S
V
41
K
S
S
V
K19
ATMS_PIO45
2
K
O
C
C
V
J20
RTCALARMN
J21
PIO47_SPCLK2
J22
PIO38_MCICLK
32
J
51
D
D
V
J3
PIO35_A_A25_BOOTSEL
J4
RDYO
J5
WPBR
J6
CLKO
1J
51
D
D
V
11
J
S
S
V
31
J
S
S
V
51
J
U_
A
S
S
V
71
J
C
N
J18
AVDB_NAND
J19
OSC32OUT
J2
PWM1_PIO46
2
H
81
D
D
V
H20
RESETN
H21
X1RTC
H22
VRTC
H3
A_A24
H4
A_A23
H6
A_CS2N
7
H
C
N
G21
X2RTC
G3
A_A22
G4
A_A21
G5
CEB_NAND
8
G
C
N
9
G
C
N
71
H
C
N
81
H
C
N
F8
MRSBU1
F9
MRSBU0
11
G
C
N
31
G
C
N
51
G
C
N
61
G
C
N
G19
RPBO
G20
FLASHRSTN
F13
A_D12
51
F
C
N
61
F
C
N
91
F
C
N
F20
PIO37_USBDATA
32
F
U
_
A5
1
D
D
V
F4
A_A20
F5
A_A19
3
E
R
C
C
V
4
E
C
N
E6
RDYR/WAITBU
E7
CSB_RAM1
E9
A_CS4N
1
F
U
C
C
V
F11
A_D3
F12
A_D8
E11
A_D4
E13
A_D11
E14
A_D14
51
E
C
N
71
E
C
N
81
E
C
N
E20
PIO36_USBOEN
E21
PIO13_USBVMO
D3
A_A17
D4
A_A16
D5
A_A7
D6
A_A5
D7
A_A4
D8
A_A3
D9
CSB_RAM0
E10
A_D1
D16
A_BE0N
D17
A_CS3N
D18
A_CS5N
D19
A_CS6N
D2
A_A18
02
D
C
N
D21
PIO12_USBVPO
D22
PIO11_USBVMI
C5
A_A6
7
C
81
D
D
V
C8
A_A2
C9
A_D0
D11
A_D5
D12
A_D7
D13
A_D10
D15
A_D15
91
C
U
C
C
V
C2
A_A15
C20
A_CS7N
C21
PIO07_USBSUSP
C22
PIO09_USBVPI
32
C
81
D
D
V
C3
A_A14
C4
A_A9
1
C
81
D
D
V
C10
A_D2
C11
A_D6
C13
A_D9
C14
A_D13
C15
A_OEN
C16
A_CS1N
71
C
81
D
D
V
B16
A_WEN
B20
A_BE1N
B21
M_A24
B23
DPDBR
B3
A_A10
B4
A_A8
B8
A_A1
B9
A_A0
AC23
PIO25
AC3
D_A4
6
C
A
81
D
D
V
9
C
A
51
D
D
V
B1
A_A13
01
B
81
D
D
V
41
B
81
D
D
V
B15
PIO30_WAITN
9
B
A
R
Q
C
C
V
AC1
SIMCLK
AC12
D_D10
5
1
C
A
51
D
D
V
8
1
C
A
D
_
A5
1
D
D
V
AC2
SPFS0
1
2
C
A
81
D
D
V
AC22
PIO10
AB15
CKI
6
1
B
A
81
D
D
V
AB20
TCK
AB21
PIO28_RTCK
AB23
PIO27
AB3
D_A0
AB4
D_A5
8
B
A
R
Q
C
C
V
AA4
D_A1
AA5
D_A6
7
A
A
U
Q
C
C
V
AA8
D_D0
AA9
D_D2
AB1
SIMIO
AB10
D_D6
AB14
D_D13
AA17
TDO
AA19
TDI
AA2
PIO14_SIMRST
AA20
PIO26_SPFS2
AA21
CPTSTSTOP_CKO
AA22
PIO32
AA23
PIO33_SPTXD2
AA3
SPTXD0_I2SD
9
A
51
D
D
V
1
A
A
81
D
D
V
AA10
D_D3
1
1
A
A
81
D
D
V
AA13
D_D11
AA14
D_D14
AA15
IOBIT0_PIO05
AA16
D_CKO_IACK
51
A
51
D
D
V
A18
VPPOTP
A2
A_A11
12
A
81
D
D
V
A22
M_A25
A23
M_A26
3
A
81
D
D
V
A6
VPPR
UCP200
1
C
N
2
C
N
A1
A_A12
A12
RPBR
R204
R211
C200
C203
TDI
TDO
VCCD_1.8V
TMS
R206
TRST
R200
VRTC_1.5V
C209
OSC200
VCCD_1.8V
C210
C208
C207
C216
C204
C202
C205
C201
C206
MP3_SCL
RAM_CS
ONENAND_CS
FLASH_RESET
ONENAND_CS
ROM1_CS
CARD_INS
CP_TDI
CP_TCK
CP_TMS
JACK_IN
INTRQ
USB_CON
CF
M_HOLD
LCDC_INT
CP_WEN
CP_OEN
FLASH_RESET
ROM1_CS
ONENAND_CS
RAM_CS
BT_RXD
BT_TXD
PSW1_BUF
MCI_DAT0_EN
MCI_CMD
CLK32K
PWR_KEEP
XOENAQ
AMP_EN
EAR_SEL
CHG_DET
EAR_SWITCH
KEY_EL_ON
RTCALARM
CHG_OFF
MIC_SEL
CP_TDO
USB_SUSP
USB_VPO
USB_VMO
USB_OEN
USB_DATA
USB_DET
SIMRST
SIMCLK
SIMDATA
UP_SCLK
UP_SDO
UP_SDI
UP_CS
BT_CTS
BT_RTS
BRIGHTNESS
PCM_SYNC
PCM_IN
PCM_OUT
PCM_CLK
DSP_INT
DSP_IO
DSP_RWN
HERA_RESET
MP3_SDA
SLCD_BL_EN
SPK_SEL
CLK13M_HPE
T_FLASH_ON
TR_RST
MCI_CLK
MCI_DAT0
MCI_CMD_EN
SDS_TXD
SDS_RXD
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
A(0)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
A(21)
A(22)
A(23)
A(24)
HALL_SENSOR
YMU_CS
LCDC_CS
YMU_IRQ
BT_EN
DSP_DB(15)
KEY_COL(0:4)
KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)
KEY_ROW(0:4)
KEY_ROW(4)
KEY_ROW(3)
KEY_ROW(2)
KEY_ROW(1)
KEY_ROW(0)
A(0:24)
A(14)
A(13)
A(12)
A(11)
A(10)
A(9)
A(8)
DSP_DB(0:15)
DSP_DB(0)
DSP_DB(1)
DSP_DB(2)
DSP_DB(3)
DSP_DB(4)
DSP_DB(5)
DSP_DB(6)
DSP_DB(7)
DSP_DB(8)
DSP_DB(9)
DSP_DB(10)
DSP_DB(11)
DSP_DB(12)
DSP_DB(13)
DSP_DB(14)
D(10)
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
DSP_AB(0:8)
DSP_AB(0)
DSP_AB(1)
DSP_AB(2)
DSP_AB(3)
DSP_AB(4)
DSP_AB(5)
DSP_AB(6)
DSP_AB(7)
DSP_AB(8)
MP3_ENABLE
D(0:15)
D(15)
D(14)
D(13)
D(12)
D(11)