SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-2
Power On
_2.
85V
3.
3V,
150m
A
VREG_MSMP
VREG_TCXO
3.
3V,
50m
A
VREG_USI
M
VREG_MSMA
KEY_LED_ON
VREG_RFRX
VREG_MSME
VREG_USB
VREG_RFTX
* G
ND t
o
P
in
6
2
VREG_MMC
2.
6V,
300m
A
2.
85V,
150m
A
3V,
300m
A
<POWER>
_2.
85V
_2.
6V
_3.
05V
1.
375V,
500m
A
_2.
85V
2.
85V,
150m
A
2.
85V,
50m
A
VREG_MOTOR
_5V
_2.
8V
VREG
_BT
2
.8
V,
150m
A
_1.
375V
_1.
8V
_3.
3V
< Power Management IC >
VREG_MSMC
2.
85V,
50m
A
5V
VREG_SYNT
MEL_
VCC
2.
6V,
300m
A
3.
05V,
150m
A
2.
85V,
150m
A
_2.
85V
_2.
85V
1.
8V,
500m
A
_2.
85V
_2.
6V
2.
85V,
150m
A
R
406
CC7V-
T1A
XTAL401
C
433
C441
R409
C
434
S
4
C
421
1
D
D
2
D
5
6
D
G
3
C
409
U
415
C
432
C417
VREG_USB
R
405
U
408
21
VREG_M
SM
C
V_I
N
C444
C
428
C
426
VREG_USI
M
R402
C
402
C470
R412
C473
R413
C453
C454
C4
4
0
VREG_M
M
C
VREG_RFRX
D401
3
1
2
C401
C451
V_I
N
C
410
C
423
VREG_M
SM
P
C
427
R
411
C
415
V_I
N
C447
VREG_USI
M
C
425
64
VREG_W
LAN
14
VSW
_5V
31
VSW
_M
SM
C
37
VSW
_M
SM
E
27
VSW
_PA
44
XTAL_I
N
46
XTAL_OUT
28
VREG_PA
69
VREG_RFRX1
67
VREG_RFRX2
VREG_RFTX
73
42
VREG_RUI
M
81
VREG_SYNT
84
VREG_TCXO
10
VREG_USB
65
VDD_
W
L
AN
VI
B_DRV_N
25
12
VREG_5V
VREG_M
M
C
39
56
VREG_M
SM
A
32
VREG_M
SM
C
36
VREG_M
SM
E
50
VREG_M
SM
P
83
VDD_
MAI
N
52
VDD_
MSM
V
DD_
MS
MC
33
V
DD_
MS
ME
35
29
VDD_
PA
VDD_
RF
71
VDD_
RUI
M
41
77
VDD_SPKR
USB_D_P
18
USB_I
D
11
USB_OE_N
13
USB_SE0
19
16
USB_VBUS
48
VBACKUP
6
VBAT
2
VCHG
60
VCOI
N
VDD_
ANA
54
SPKR_I
N_M
76
SPKR_I
N_P
SPKR_OUT_M
79
75
SPKR_OUT_P
55
TCXO
_EN
58
TCXO
_I
N
TCXO
_O
UT
53
15
USB_CTL_N
17
USB_DAT
20
USB_D_M
26
34
RUI
M_
M_
CL
K
30
RUI
M_
M_
IO
40
RUI
M_
M_
RST
43
RUI
M_
RST
SBCK
49
47
SBDT
51
SBST
45
SLEEP_CLK
74
SPKR_BYP
78
NC
NC
87
PON_RESET_N
9
57
PS_HOLD
63
REF_BYP
62
REF_
GND
61
REF_I
SET
80
REF_
OUT
RUI
M_
CL
K
38
RUI
M_
IO
8
85
GN
D
21
G
P
1_D
R
V
_N
5
IS
N
S
_
M
3
IS
N
S
_
P
KPDPW
R_N
24
23
KPD_DRV_N
L
CD_
DRV_
N
22
MS
M_
IN
T
_
N
59
86
U
401
ADC_BYP
1
70
AMUX_
IN1
72
AMUX_
IN2
82
AMUX_
O
UT
7
BAT_FET_N
68
C
B
L0PW
R
_N
C
B
L1PW
R
_N
66
4
C
H
G
_C
TL_N
FL
SH_
DRV_
N
VREG_M
SM
A
R440
C
406
3
ON
/_
OF
F
2
OU
T
R438
U
411
GN
D
4
IN
1
5
IN
6
IN
7
IN
IN
8
R408
C
443
Q
403
1
3
2
VBATT
VREG_SYNT
VREG_RFTX
C
407
R435
C481
C474
C424
C
413
R437
C472
Q
404
1
3
2
C471
C446
TP401
C
430
C
442
C
422
C
418
C414
R403
7
8
8
9
GG
10
G
11
12
G
1
1
2
2
3
3
4
4
5
5
6
6
7
R439
CN
40
1
C452
VREG_M
SM
E
C
431
R458
V_I
N
VREG_TCXO
390
R
410
R436
FL
A
G
3
4
GAT
E
2
GN
D
1
IN
6
NC
NC
5
VREG_BT
U
414
C
420
KEY_LED_ON
GN
D
4
3
NC
OU
T
1
VD
D
2
U409
C419
TP402
C
405
C
429
C448
C416
C
404
C4
0
8
C
411
C475
L402
L403
C450
U
407
6
CL
OC
K
2
GN
D
1
IO
5
NC
SIM
34
VC
C
C449
C4
3
9
AMUX_
O
UT
USB_VBUS
PS_HOLD
HFK_
DETECT
KEY_PRESSED
USI
M
_
R
ST
USI
M
_
C
L
K
USI
M
_
IO
J
IG_
ON
J
IG_
DETECT
J
IG_
ON
J
IG_
DETECT
ON_
S
W
TCXO
TCXO
_EN
TCXO
_O
UT
RESET_N
USB_SEO
USB_OE_N
SI
M
_
RST
SI
M
_
IO
PM
_I
N
T
_N
REF_
OUT
SI
M
_
CLK
PM
IC
_SBCK
PM
IC
_SBDT
PM
IC
_SBST
SLEEP_XTAL_I
N
USB_DAT
USB_D_P
USB_D_M
PS_HOLD