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Flow Chart of Troubleshooting
9-14
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9-1-8. Charging Part
R610
R606
R613
25
25
3
3
4
4
5
5
6
6
7
7
8
8
9
9
18
18
19
19
2
2
20
20
21
21
22
22
23
23
24
24
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
IFC600
1
1
R612
R611
C611
VEXT_5V
R608
R609
C610
0
8
_
5V
R607
L601
C609
TA602
VBATT_4.2V
L600
Abnormal Charging
Operation
YES
YES
Check the charging IC(U402)
END
YES
Check battery voltage
Check the TA
NO
NO
YES
Check the pin #19, #20 of
IFC600 = 5V
(C610)
Check the pin #3 of
BTC700
≥
2.8V(C701)
C700
V
_
TCXO
_
2.85
V
2
2
3
3
NC
4
5
NC
6
NC
7
NC
BTC700
1
1
R
7
0
1
TA700
D700
C701
VBATT_4.2V
VF
C461
R
4
2
6
R430
C459
R428
V_MSMP_2.6V
R429
C460
VBATT_4.2V
EN
11
GND
IDC
83
ITERM
IUSB
2
PWR
4
USBIN
1
U402
9
BAT
BATDET
7
CHRG
5
DCIN
10
6
VF
CHG_INDICATE
VEXT_5V
CHG_EN_N
USB_VBUS_5V