Samsung SGH-E770, Service Manual

Page: 9 / 47

SAMSUNG Proprietary-Contents may change without notice
SGH-E770 Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
2- 5
HP_CORE_1.6V
C206
C202
R204
OSC200
C205 C207
C215 C214
C204
VCCD_1.8V
C201
HP_CORE_1.6V
C208
R201
VRTC_1.5V
D
_
A
S
S
V
U
_
A
S
S
V
8
1
F
C
T
R
1
X
9
1
H
9
1
F
C
T
R
2
X
0
1
M
7
1
S
S
V
1
1
M
2
1
M
8
1
S
S
V
8
1
A
2
S
S
V
3
S
S
V
8
G
4
S
S
V
9
G
5
S
S
V
8
H
9
H
6
S
S
V
0
1
H
7
S
S
V
1
1
H
8
S
S
V
9
S
S
V
2
1
H
1
1
R
8
1
D
8
_
8
P
1
_
OI
_
D
D
V
9
_
8
P
1
_
OI
_
D
D
V
1
F
8
1
G
C
T
R
V
1
S
S
V
2
A
2
1
J
0
1
S
S
V
1
1
S
S
V
8
K
7
L
2
1
S
S
V
3
1
S
S
V
8
L
8
M
4
1
S
S
V
5
1
S
S
V
9
M
6
1
S
S
V
1
U
5
1
_
8
P
1
_
OI
_
D
D
V
5
U
2
1
U
6
1
_
8
P
1
_
OI
_
D
D
V
7
1
_
8
P
1
_
OI
_
D
D
V
8
W
8
1
W
8
1
_
8
P
1
_
OI
_
D
D
V
2
_
8
P
1
_
OI
_
D
D
V
6
B
3
_
8
P
1
_
OI
_
D
D
V
2
1
B
6
1
B
4
_
8
P
1
_
OI
_
D
D
V
5
_
8
P
1
_
OI
_
D
D
V
1
C
4
1
C
6
_
8
P
1
_
OI
_
D
D
V
9
D
7
_
8
P
1
_
OI
_
D
D
V
3
E
R
O
C
_
D
D
V
8
1
H
4
E
R
O
C
_
D
D
V
5
E
R
O
C
_
D
D
V
2
M
8
1
N
6
E
R
O
C
_
D
D
V
7
E
R
O
C
_
D
D
V
7
V
8
E
R
O
C
_
D
D
V
3
1
V
1
_
8
P
1
_
OI
_
D
D
V
4
B
4
L
0
1
_
8
P
1
_
OI
_
D
D
V
6
1
L
1
1
_
8
P
1
_
OI
_
D
D
V
1
P
2
1
_
8
P
1
_
OI
_
D
D
V
3
1
_
8
P
1
_
OI
_
D
D
V
8
1
T
4
1
_
8
P
1
_
OI
_
D
D
V
T14
TEST2
TEST3 V16
S
M
T
4
1
W
2
1
R
N
T
S
R
T
0
X
T
3
M
7
K
1
X
T
1
1
T
D
_
A
D
D
V
7
1
F
U
_
A
D
D
V
1
E
R
O
C
_
D
D
V
8
B
3
1
B
2
E
R
O
C
_
D
D
V
2
G
SPCLK1_PIO18
3
T
0
S
F
P
S
N15
SPFS1_PIO15
0
D
X
R
P
S
4
R
SPRXD1_PIO17 M17
2
U
D
S
2I
_
0
D
X
T
P
S
N16
SPTXD1_I2SD_PIO16
TCK U14
TDI V14
TDO T12
TEST1 U15
6
4
OI
P
_
1
M
W
P
N
T
S
E
R
5
1
G
1
0
OI
P
_
OI
R
3
P
7
1
H
N
M
R
A
L
A
C
T
R
2
N
4
0
OI
P
_
0
S
T
R
RWN V6
1
M
8
2
Q
RI
_
0
X
R
6
L
8
2
Q
RI
_
1
X
R
K
L
C
MI
S
4
P
2
T
OI
MI
S
3
R
0
K
L
C
P
S
M18
PIO35_A_A25_BOOTSEL
F2
N
E
O
_
B
S
U
_
6
3
OI
P
6
1
F
7
1
E
A
T
A
D
_
B
S
U
_
7
3
OI
P
5
1
J
K
L
C
_I
C
M
_
8
3
OI
P
4
1
L
N
E
_
D
M
C
_I
C
M
_
9
3
OI
P
N
E
_
T
A
D
_I
C
M
_
0
4
OI
P
4
1
M
6
1
R
X
T
A
D
RI
_
1
4
OI
P
X
R
A
D
RI
_
2
4
OI
P
7
1
R
4
1
N
N
E
_
0
T
A
D
_I
C
M
_
3
4
OI
P
J16
PIO47
5
G
2
T
A
D
_I
C
M
_
3
2
OI
P
5
1
L
3
T
A
D
_I
C
M
_
4
2
OI
P
9
1
V
5
2
OI
P
6
2
OI
P
6
1
U
7
2
OI
P
9
1
U
8
2
OI
P
7
1
W
E14 PIO30_WAITN
P12
PIO31_IRQ6
2
3
OI
P
3
1
R
U18
PIO33
PIO34 R14
3
1
J
9
1
C
I
P
V
_
B
S
U
_
9
0
OI
P
0
1
OI
P
7
1
V
8
1
C
I
M
V
_
B
S
U
_
1
1
OI
P
7
1
D
O
P
V
_
B
S
U
_
2
1
OI
P
6
1
E
O
M
V
_
B
S
U
_
3
1
OI
P
5
P
T
S
R
MI
S
_
4
1
OI
P
5
1
P
P
E
E
K
R
W
P
_
9
1
OI
P
Q
E
R
K
L
C
S
Y
S
_
0
2
OI
P
9
1
P
3
1
K
0
T
A
D
_I
C
M
_
1
2
OI
P
1
T
A
D
_I
C
M
_
2
2
OI
P
2
1
L
3
1
L
F
U
B
_
1
W
S
P
_
5
D
R
B
Y
E
K
6
H
4
H
6
D
R
B
Y
E
K
7
D
R
B
Y
E
K
1
H
3
H
8
D
R
B
Y
E
K
9
D
R
B
Y
E
K
6
G
1
1
C
N
2
C
N
2
6
1
G
T
U
O
2
3
C
S
O
PIO00_IRQ5 P16
P
S
U
S
_
B
S
U
_
7
0
OI
P
9
1
B
D
M
C
_I
C
M
_
8
0
OI
P
M16
M19
IRQ2
IRQ3 P17
P18
IRQ4
7
J
0
D
R
B
Y
E
K
1
D
R
B
Y
E
K
6
J
0
1
D
R
B
Y
E
K
4
G
1
1
D
R
B
Y
E
K
2
H
2
D
R
B
Y
E
K
5
J
3
D
R
B
Y
E
K
4
J
8
J
4
D
R
B
Y
E
K
D_D4
V8
D_D5
U8
D_D6
D_D7 T8
T9
D_D8
D_D9 R9
FLASHRSTN H14
T15 INT0
IO W6
V12
IOBIT0_PIO05
N11 IOBIT1_PIO06
IRQ1
D_D0 U6
D_D1 T6
P8 D_D10
D_D11 P9
N8
D_D12
N9
D_D13
D_D14 N10
D_D15 P11
R7
D_D2
D_D3 T7
R8
2
0
OI
P
_
0
R
S
D
3
0
OI
P
_
0
R
T
D
4
N
V1
D_A0
D_A1 W2
W3 D_A2
V3 D_A3
D_A4 U4
D_A5 T5
V4
D_A6
D_A7 N6
R6
D_A8
A_D6
A_D7
G12
A_D8
D11
A_D9 E12
A_OEN
B14
D14 A_WEN
2
1
W
I
K
C
N12
CKO_IACK
T17 CPTSTSTOP_CKO
9
2
OI
P
_
0
S
T
C
6
M
5
N
4
4
OI
P
_
0
D
C
D
2
P
C12 A_D10
A_D11
A12
F12 A_D12
A_D13
D12
E13 A_D14
D13 A_D15
A_D2 F9
A_D3 G10
G11 A_D4
A_D5
F11
E11
A17
A14 A_CS0N
C15 A_CS1N
G14 A_CS2N
A_CS3N
J14
A_CS4N
D15
C16 A_CS5N
F15 A_CS6N
A_CS7N
B17
A8 A_D0
A_D1
E9
A_A22
A_A23
F4
A_A24
F3
A_A3
A6
C6 A_A4
A_A5 C5
D7 A_A6
A_A7
E7
C4 A_A8
A_A9
C2
H16 A_BE0N
A_BE1N
A_A13
D6
D5 A_A14
A_A15
D3
E8 A_A16
A_A17
F8
A_A18 E6
D2 A_A19
A_A2 D8
E4 A_A20
A_A21
E3
F5
ATCK_CTS1 M4
ATDI_RTS1 L5
T13
ATDO_PWM2
K12
ATMS_PIO45
A_A0
B7
A_A1
C8
A3 A_A10
A_A11 B3
B1 A_A12
UCP201
0
0
2
R
V
1
0
2
L
PCM_CLK
LCDC_INT
ONENAND_CS
MCI_DAT0_EN
MCI_DAT0
MCI_CMD
MCI_CLK
MCI_CMD_EN
CARD_INS
YMU_IRQ
CHG_OFF
A(0)
DSP_INT
DSP_IO
DSP_RWN
FLASH_EN1
KEY_COL(0:4)
LOWER_BYTE
YMU_CS
LCDC_CS
RAM_CS
KEY_ROW(0:5)
SPK_SEL
M_HOLD
PCM_SYNC
PCM_IN
PCM_OUT
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)
CP_TDI
CP_TCK
CP_TMS
HALL_SENSOR
JACK_IN
INTRQ
USB_CON
AK_EN
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)
DSP_AB(0:8)
D(11)
D(10)
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
UP_SDO
UP_SDI
UP_CS
OLED_EN
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
DSP_DB(15)
DSP_DB(0:15)
A(21)
A(20)
A(19)
A(18)
A(17)
A(16)
A(15)
A(14)
A(13)
A(12)
A(11)
A(10)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
CP_OEN
T_FLASH_ON
FLASH_RESET
ROM1_CS
UPPER_BYTE
D(0:15)
D(14)
D(13)
D(12)
RST
INVERT
RTCALARM
BT_RTS
BT_RXD
SDS_RXD
SIMCLK
SIMDATA
UP_SCLK
BT_TXD
SDS_TXD
A(0:24)
A(24)
A(23)
A(22)
USB_SUSP
USB_DET
MIC_SEL
VMOT_EN
USB_VPO
USB_VMO
SIMRST
PWR_KEEP
XOENAQ
AMP_EN
EAR_SEL
CHG_DET
EAR_SWITCH
USB_OEN
USB_DATA
VIB_EN
PWM_MAG
CP_TDO
D(15)
CP_WEN
CLK13M_TR
BT_CTS
MLCD_DIM
VBT_EN
KEY_COL(0)
KEY_ROW(4)
KEY_ROW(5)
PSW1_BUF
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
CLK32K