Charging Trouble - LG KP260 Service Manual
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- User manual (146 pages) ,
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- User manual (146 pages)
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4.6 Charging Trouble
TEST POINT
CIRCUIT
CHARGE(TA+USB)
TP2
_CHG_EN
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN300
Figure 4.5
VBUS_IN
VCHG_IN
TP3
TP1
R336
100K
R339
C352
C353
10K
1u
1u
- 57 -
4. TROUBLE SHOOTING
U304
VBAT
EUSY0351601
U304
ISL9221
13
PGND
1
VDC
12
VDC_BYP
2
VUSB
11
BAT
3
_PPR
10
USB_BYP
4
_CHG
9
IVDC
5
_EN
8
GND
6
IMIN
7
IUSB
R340
R338
18K
15K
TP2
TP1
OVP_VCHG
OVP_VUSB
C354
1u
LGE Internal Use Only
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