LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.7. Charger Troubleshooting
Charging Procedure
Troubleshooting Setup
- Connect TA
- Connect TA and battery to the phone
- Control the charging current by PM6650 IC
- Charging current flows into the battery
Charging
Troubleshooting Procedure
- Connection of TA
- Check the charger connector
- Charging current path
- Check the charging current Path
- Battery
- Check the battery
4. TROUBLE SHOOTING
- 100 -
(1%)
2012
5
6
4
QST4
Q1
EQBP0009901
3
1
2
R1137
0.1
smd_2125h_65_r
ERHZ0003901
D
G
S1
S2
S3
S4
S5
FDJ129P
Q8
EQFP0005101
C1618
33p
C1661
33u
+5V_PWR
CHG_CNT_N
ICHARGEOUT
ICHARGE
BATT_FET_N
+VPWR
VBATT
Charging Current Flow
4.2~4.25V
TA
(5.4V)
Main
Battery
Pass
Tr
(ON)
4.2~4.25V
Battery FET
(ON)
Содержание L704I
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