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4. TROUBLE SHOOTING
2V75_VTCXO
POWERKEY
PMIC
C302
(2012)
10u
CUS02
D300
U301.21
1V8_VCORE
U301.25
U301.29
RPWRON
U301.30
U301
ADP3522XCP-3
POWERKEY
KEYROW0
RPWRON
CLKON
SIM_EN
C305
1000p
S
G
5
4
D4
D3
6
3
D5
D2
7
2
D6
D1
8
1
TPCF8102
Q300
U301.20m
2V8_VMEM
U301.3
2V0_VRTC
C300
C301
10u
0.1u
(1608)
30
_PWRONKEY
31 ROWX
18
VSIM
29
PWRONIN
21
VCORE
28
TCXOEN
1
23
SIMEN
VAN
15
RESCAP
25
8
SIMVSEL
VTCXO
9
20
GATEDR
VMEM
10
3
GATEIN
VRTC
26
12
ISENSE
REFOUT
6
16
CHRDET
_RESET
14
CHGEN
5
4
MVBAT
BATSNS
7
CHRIN
13
EOC
17
NC1
24
NC2
33
32
GND
NC3
C308
0.22u
0.1u
C311
(1608)
TP301
EOC
TP302
CHG_EN
TP303
CHRDET
TP304
GATE_EN
- 52 -
Figure 4-16
2.2u
2.2u
0.22u
2.2u
0.1u
0.1u
C312
C313
C315
C309
C314
C310
(1608)
(1608)
(1608)
(1608)
R301
100
RESET
C306
C307
100p
100p
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