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4. TROUBLE SHOOTING
4.5 Charging Trouble
TEST POINT
C252
TP1_U204
CIRCUIT
VBUS_USB
LDO_OUT
TP1
C251
C252
0.1u
1u
LGE Internal Use Only
Figure 4.5
U204
1
VIN
2
ISET
3
GND1
4
LDO
5
IEOC
R237
EUSY0410801
R238
R239
RT9524
2.7K
2.7K
TP1
3.9K
1%
4. TROUBLE SHOOTING
CN202
VBAT
11
PGND
10
BATT
9
PGB
8
CHGSB
7
GND2
6
EN_SET
C253
1u
(10V)
- 74 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
1V8_VDD
R231
100K
NEOC
R235
CHG_EN
1K
R240
C254
0.1u
100K
Only for training and service purposes
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