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Flow Chart of Troubleshooting
Charging
USB_VBUS_5V
R801
CHG_ING_N
C801
TRST_N
TDO
TDI
TCK
TMS
R525
VEXT_5V
R528
VREG_MSMP_2.6V
R803
R811
R812
VREG_MSMP_2.6V
BOOT_SW
RTCK
JIG_ON
UART1_TX_IF
UART1_RX_IF
USB_D+
USB_D-
ZD501
TA512
VEXT_5V
U800
1
DCIN 10
USBIN
2
9
IUSB
BAT
3 ITERM
IDC 8
4
USBPWR 7
PWR
5
6
CHRG
EN
GND
11
R813
D500
R501
R526
R502
R503
R504
R505
R506
R507
R508
R510
R511
R512
D502
9-6
VBATT
R800
R824
R809
CHG_CONT
C802
USB_VBUS_5V
VBATT
IFC500
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
NC
26
NC
27
NC
28
NC
TA514
ZD504
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