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10. Flow Chart of Troubleshooting
10-
1
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10-1-1. Power ON
Deduct power management component damage
Check VBAT
L400, L401
≒
3.4 ~ 4.2
Resoldering
each Component
Check VBAT
C429
≒
1.35V
C432
≒
1.8V
TP402
≒
3.6 ~ 4.1V
Check VBAT
C429
≒
1.35V
C432
≒
1.8V
TP402
≒
3.6 ~ 4.1V
Check TCXO
R111
≒
2.9V
C436
≒
VRTC~2V
TP407
≒
VRTC~2V
Check TCS101
PIN 3
≒
26MHz
Check
≒
OSC301
C327
≒
32.768kHz
Check
Initial Operation
C405
L401
VSD2_1.8V
VBAT
C402
C407
K
9
V
D
D
C
H
A
R
G
E
K
1
V
D
D
S
D
2
K
11
V
D
D
S
D
1
H
9
V
D
D
U
M
T
S
H
1
V
D
D
A
U
X
G
11
V
D
D
S
IM
V
IB
G
2
V
D
D
A
U
D
IO
B
F
1
V
D
D
A
U
D
IO
A
E
11
V
D
D
R
F
13
A
F
C
D
10
V
D
D
R
F
2
C
10
V
D
D
M
M
E
B
5
V
D
D
U
S
B
B
7
V
D
D
_M
O
N
O
B
9
V
D
D
P
LL
IO
C403
C401
L400
TA400
C406
R407
VBAT
R406
R405
L3
WDOG
L4
ON_OFF2
L5
ON_OFF_OUT
K3
POWER_ON
K4
ON_OFF1
K5
I2C_INT
J1
SU1_GATE
J2
SU1_GND
J3
SU1_ISENSE
J4
H3
SU1_FB
VIO_2.62V
R408
PWR_ON
PWR_OFF_DET
RTC_OUT
JIG_ON_PWR
PM_INT
WDOG
C303
C313
C321
C323
C
32
4
C326
C
3
27
C401
C402
C403
C
40
5
C406
C
4
07
C
4
09
C410
C411
C
41
2
C
41
3
C
4
1
4
C
4
1
5
C416
C417
C
4
19
C420
C421
C422
C
4
2
3
C424
C
4
25
C427
C428
C
42
9
C430
C
4
3
1
C
43
2
C
43
3
C434
C435
C
43
6
C438
C439
C450
C706
C716
C717
D
4
01
D402
L
4
00
L401
L4
02
L403
L
7
0
0
L703
M401
O
S
C
3
01
Q
4
0
0
R
3
0
1
R
3
02
R322
R
3
24
R330
R
33
1
R
3
32
R
40
5
R
4
06
R407
R
4
08
R412
R
4
13
R
4
15
R416
R417
R425
R430
R
4
3
4
R435
R448
R
7
1
0
R
7
12
R725
R726
TA400
T
P
_S
LE
E
P
2_
N
T
P
33
0
T
P
40
3
TP
407
U
40
1
U
40
2
R
31
12
D
26
1A
-T
R
-F
U
7
0
1
H
E
D
5
8X
X
U
12
U
7
03
H
E
D
58
X
X
U
1
2
R415
C436
VRTC_2.0V
M401
NEG
2
POS
1
VRTC
Summary of Contents for SGH-L770
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