5-2Flow Chart of Troubleshooting and Circuit Diagrams
ON_OFF
RST
I_CHARGE
DCIN
VF
VDD3.0
DVCC2.5
AVCC2.5
2V8AERO
2V8RFVCC
LVCC
RTC_VCC
L301
0
R312
C303
100NF
C300
100NF
C305
27PF
C308
10NF
C307
4.7UF
BLM10A102SGPT
9PF
C312
C311
10NF
4.7UF
C310
10NF
C313
10NF
C314
4.7UF
C315
10NF
C342
4.7UF
C344
C343
4.7UF 10NF
C346
4.7UF
C345
D302
DAN222TL
22
23
24
IN1
PWR_ON
VDIG
25
BATTID
VICHG
26
RESET/
27
HP_PWR
28
ON/
29
CS
30
PWR_HOLD
31
CHGR_EN/
GND
32
33
GND
GND
34
CHG_GATE
CHG_IN
NC37NC
GND
35
2
1
38
C302
100NF
SI3443DV-T1
Q301
SS
100K
R310
4
G3
125
6
36
3
C301
1
2
0
R311
10UF/6.3V
R345
82K,1%
R346
C304
100K,1%
100NF
U301
STPS140Z
18
19
21
VANA
VBATT
3
1UF
C306
20
VRF
U302
MAX1560
GND
4
C309
17
IN2
VMOT
IN3
VTCXO
16
VRTC
15
VBACKUP
14
REFBP
5
RF_EN
6
TCXO_EN
13
DATA
12
CLK
11
DR3
DR2
910
PGND
DR1
8
7
C322
RB414
10NF
0
R350
TP647
BB_PWR
SCL
DCIN
CHG_ON
+VBATT
BAT_VOLT
DCVOLT
TP644
TP645
TP646
SDA
SYSCLKENAN