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4.4 Charging Trouble
TEST POINT
CIRCUIT
CUR_MON
CHG_EN
U508
R413
Charging IC
VUSBIN
VCHARGE
D501
CUS02
C532
R517
R518
NA
NA
10K
R612
0
R521
C533
C534
R519
R611
39K
100K
10K
1u
1u
- 73 -
4. TROUBLE SHOOTING
D501
VBAT
2V8_VEXT
1
10
CRDL
BAT
2
R516
USB
100K
U508
6
3
IMIN
_PPR
4
_CHG
CHG_STAT
9
ICDL
7
8
USBON
GND
5
11
_EN
PGND
ISL6299
R520
C535
100K
1u
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