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Flow Chart of Troubleshooting
9-15
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9-1-8. Charging Part
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
(C606)
Check the pin #3 of
BTC700
≥
2.8V(TA700)
VEXT_5V
R603
R606
R613
0
0
6
A
T
GND
2
1 IO1
3
IO2
IO3
4
5
IO4
IO5 6
D604
R600
2
1 IO1
3
IO2
IO3
4
5
IO4
IO5 6
C605
D602
GND
USB_VBUS_5V
R604
L602
R601
R605
VBATT
D606
L601
R609
R608
R607
C607
D603
GND
2
1 IO1
3
IO2
IO3
4
5
IO4
IO5 6
NC
24
25 NC
NC
26
NC
27
5
6
6
7 7
8
8
9 9
NC
21
22 NC
23 NC
16
16
17 17
18
18
19 19
2
2
20
20
3
3
4
4
5
1 1
10
10
11
11
12
12
13
13
14
14
15 15
IFC600
C606
EAR_L
EARMIC_P
DVB_DEBUG_TX
DVB_DEBUG_RX
USB_D-
USB_D+
EARMIC_N
ADC_BOOT_SW
JACK_INT
EAR_SW
IF_UART1_TX
IF_UART1_RX
JIG_ON
EAR_R
TA700
3
4 4
5
NC
NC
6
BTC700
1
1
2
2
3
C734
C735
C733
D702
VBATT
VF