![background image](http://html.mh-extra.com/html/samsung/sgh-u100/sgh-u100_service-manual_1191183030.webp)
Flow Chart of Troubleshooting
3-17
C407
USB_3.3CV
C477
R473
C423
VCCD_1.8V
VCCD_1.8V
C476
R472
ISP_V
ISP_P
USB_3.3TV
USB_1.2V
VDD_TV_2.8V
C414
C436
C413
ISP_H
C402
CORE_1.2V
1M
R415
C422
VCAM_2.8V
R464
C410
CORE_1.2V_PLL
C470
USB_3.3CV
C478
C403
VCCD_1.8V
P4
NC
P5
NC
P6
N_CS_N
P7
NC
P8
N_CLE
P9
GPIO1_D2
P1
NC
P10
GPIO1_D5
P11
D_BCK
P12
D_SDATAOUT
P13
SD_CLK
P14
GPIO1_D7
P2
NC
P3
NC
N2
L_RD_N
N3
NC
N4
NC
N5
GPIO1_D6
N6
N_RDY
N7
NC
N8
N_ALE
N9
GPIO1_D3
M8
N_WE_N
9
M
1
g
D
D
V
N1
L_PCLK
N10
D_SDA
N11
D_MSCK
N12
SD_D1
N13
SD_D0
N14
SD_CMD
M13
SD_D3
M14
SD_D2
M2
L_DA0
M3
L_WR_N
M4
GPIOL_D13
M5
GPIO1_D0
M6
N_RE_N
M7
NC
L6
NC
L7
NC
L8
GPIO1_D1
L9
GPIO1_D4
M1
L_DA1
M10
D_SCK
M11
D_LRCK
M12
SD_WP
11
L
ds
D
D
V
21
L
bs
u2
1
D
D
V
L13
USB_VBUS_DRV
L14
USB_DP
L2
L_DA4
L3
L_DA3
L4
L_DA2
L5
LS_CS_N
K13
USB_REXT
K14
USB_DM
K2
L_DA8
K3
L_DA7
K4
L_DA6
5
K
dc
l
D
D
V
L1
L_DA5
L10
D_SDATAIN
6J
S
S
V
7J
i
D
D
V
8J
R
D
D
V
9J
Q
S
S
V
K1
L_DA9
01
K
ca
D
D
V
K11
USB_ID
K12
USB_VBUS
J1
L_DA13
J11
TESTMODE
21
J
T3
3
A
S
S
V
31
J
T3
3
A
S
S
V
41
J
C3
3
A
S
S
V
J2
L_DA12
J3
L_DA11
J4
L_DA10
H14
XIN
H2
L_DA16
H3
L_DA15
H4
L_DA14
6
H
S
S
V
7
H
c
D
D
V
8
H
c
D
D
V
9
H
S
S
V
6
G
S
S
V
7
G
c
D
D
V
8
G
ll
p
D
D
V
9
G
ll
p
S
S
V
H1
L_DA17
11
H
T3
3
A
D
D
V
21
H
T3
3
A
D
D
V
31
H
C3
3
A
D
D
V
G1
T_VREF
G11
M_SD0
G12
G_INT
G13
NC
G14
XOUT
G2
T_VRO
G3
L_ADS
G4
L_CS_N
F14
MASTER0
F2
T_OUT
3
F
vt
D
D
V
A
4
F
vt
S
S
V
A
6
F
Q
S
S
V
7
F
R
D
D
V
8
F
i
D
D
V
9
F
S
S
V
E2
C_D6
E3
C_D7
E4
NC
5
E
s
D
D
V
F1
GPIOS_D15
F11
M_SD4
F12
M_SD3
F13
M_SD2
D8
XRTS0
D9
M_WR_N
E1
C_D5
01
E
0
C
D
D
V
E11
M_SD8
E12
M_SD7
E13
M_SD5
E14
M_SD1
D13
M_SD10
D14
M_SD6
D2
C_D1
D3
C_D2
D4
C_D3
D5
C_D4
D6
TDO
D7
NC
C6
NC
C7
N_D2
C8
N_D7
C9
SOUT0
D1
C_D0
D10
M_RESET_N
D11
M_SD12
D12
M_SD11
C11
M_SA2
C12
M_SD15
C13
M_SD13
C14
M_SD9
C2
C_MCLK
C3
C_SDA
C4
C_SCK
C5
C_PCLK
B4
C_HS
B5
RTCK
B6
NC
B7
N_D1
B8
N_D5
B9
SIN0
C1
C_VS
C10
M_RD_N
B1
C_PWDN
B10
M_CS_N
B11
MS_CS_N
B12
M_INTR
B13
M_SA1
B14
M_SD14
B2
STROBE
B3
C_RST
A2
TRST
A3
TMS
A4
TCK
A5
NC
A6
N_D0
A7
N_D3
A8
N_D4
A9
N_D6
1
NC
2
NC
A1
TDI
A10
XCTS0
A11
PWR_STRB
A12
M_HOLD
A13
M_ADS
A14
M_SA0
U401
C424
R418
R481
R412
VDD_TV_2.8V
C479
R413
C409
VCCD_1.8V
VCCD_2.9V
VCAM_2.8V
R485
OSC400
2
4
3
1
USB_5V
C401
CORE_1.2V_O
SDA
USB_CHG_ON
CHG_OFF
VCAM_EN2
USB_HERA_D-
USB
USB_EN
CP_OEN
A(8)
ISP_PCLK
ISP_HSYNC
ISP_VSYNC
A(1)
A(2)
VCAM_EN1
D(8)
D(9)
D(10)
D(11)
D(12)
D(13)
D(14)
D(15)
PWR_STRB
TV_EN
M_HOLD
CP_WEN
TI_SDOUT
LCDC_CS
D[0:15]
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
LCD_D(5)
LCD_D(6)
LCD_D(7)
LCD_D(8)
LCD_D(9)
LCD_D(10)
LCD_D(11)
LCD_D(12)
LCD_D(13)
LCD_D(14)
LCD_D(15)
TI_SDIN
LCD_WEN
ISP_MCLK
LCD_D(0:15)
LCD_D(0)
LCD_D(1)
LCD_D(2)
LCD_D(3)
LCD_D(4)
ISP_RESET
ISP_SCL
ISP_SDA
MLCD_CS
L_ADS
SCL
TI_LRCK
TI_BCK
TI_MSCK
ISP_D(0:7)
ISP_D(7)
ISP_D(6)
ISP_D(5)
ISP_D(4)
ISP_D(3)
ISP_D(2)
ISP_D(1)
ISP_D(0)
LCDC_INT
HERA_RESET
Summary of Contents for SGH-U100
Page 15: ...Flow Chart of Troubleshooting 3 2 ...
Page 37: ...Flow Chart of Troubleshooting 3 24 ...
Page 42: ...Flow Chart of Troubleshooting 3 29 ...
Page 44: ...Flow Chart of Troubleshooting 3 31 ...
Page 54: ...6 PCB Diagrams 6 1 ...
Page 55: ...PCB Diagrams 6 2 ...