Charging Trouble - LG KP210 Service Manual

4.5 Charging Trouble

TEST POINT
CIRCUIT
USB_DET
_CHG_EN
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN302
Figure 4.5
USB_VBUS
TP2
R253
C226
1u
100K
4. TROUBLE SHOOTING
VCHARGE
U203 ISL6299
1
CRDL
2
USB
6
IMIN
TP1
9
ICDL
7
USBON
5
_EN
C227 R252
C442
47p
1u 100K
- 57 -
U203
TP2
TP1
VBAT
10
BAT
3
_PPR
4
_CHG
8
GND
11
PGND
C228
1u
LGE Internal Use Only