LG LG-A270 - Charging Trouble

4. TROUBLE SHOOTING
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4.6 Charging Trouble
R252
1K
R253
3K
100K
R254
VBAT
U201
RT9524
EUSY0410801
65
74
83
92
101
11
PGND
VIN BATT
ISET PGB
GND1 CHGSB
LDO GND2
IEOC EN_SET
C240
1u
VBUS_USB
VBUS_LDO_4V9
0.1u
C239
C241
1u
VIO28
R255
DNI
CHG_EN
CHG_EOC
(25V)
(10V)
(10V)
1%
CHARGER IC
TP2
TP1
Figure 4.6.2
U201
CN203
TP1
TP2
Figure 4.6.1