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Flow Chart of Troubleshooting
10-8
10-1-4. Charging Part
Abnormal charging part
①
Battery Contact at
BTC400?
Yes
Battery Check
BTC400
No
Yes
②
Check the
IFC402
Charger input of
IFC402 ?
No
Yes
END
C409
VCCD_1.8V
C405
ZD406
ZD407
1
2
3
4
5
6
7
8
R437
TA448
VBAT
0
14
D
Z
R457
USB_5V
9
04
D
Z
R430
7
7
8
8
9
9
NC
21
22 NC
23 NC
NC
24
19
19
2
2
20 20
3
3
4
4
5
5
6 6
11
11
12
12
13 13
14 14
15
15
16 16
17
17
18 18
IFC402
1
1
10 10
VEXT
C430
7
8
ZD408
1
2
3
4
5
6
R420
C470
EAR_SWITCH
JIG_ON_IF
SDS_RXD
EAR_CHECK
TV_OR_SDS
JACK_IN
USB_D-
USB_D+
EAR_MICP
EAR_L
EAR_MICN
EAR_R