LG KE520 Service Manual page 69

4. TROUBLE SHOOTING
4.4.4 Charging Current
- Charging Procedure
z Connecting TA & Charger Detection
z Control the charging Current by CHARGER IC
z Charging Current flow into the Battery
- Check Points
z Connection of TA
z Charger IC
z Battery
- Trouble Shooting Setup
z Connect Battery & TA to the handset
- Trouble Shooting Procedure
z Check the charger connector
z Check the charging current path
z Check the battery
CHG_EN
LGE Internal Use Only
VBUS VCHG
U101 ISL6299
1 CRDL BAT
2
USB
R106
1 6
IMIN _PPR
_CHG
9 ICDL
7 USBON GND
5 _EN
PGND
C105 C106
R113
1u 1 uF 100K
- 70 -
VBAT VRIO
10
3
4
_CHG_STAT
8
11
C107
1u
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