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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 88 -
4.7 Charger Troubleshooting
Charging Procedure
- Connect TA
- Control the charging current by PM6650 IC
- Charging current flows into the battery
Check Point
- Connection of TA
- Charging current path
- Battery
Troubleshooting Setup
- Connect TA and battery to the phone
Troubleshooting Procedure
- Check the charger connector
- Check the charging current Path
- Check the battery
Differential lines, route as equal length as possible !! --> ICHARGE , ICHARGEOUT
R400
0.1
G
S
SI3493DV-E3
Q401
D1
D2
D3
D4
B
1
C1
C2
2
5
6
4
Q400
QST4
3
VBATT
BATT_FET_N
+VPWR
ICHARGE
ICHARGEOUT
CHG_CNT_N
+5V_PWR
TA
(4.6V)
Main
Battery
Charging Current Flow
Pass
Tr
(ON)
4.2~4.25V
Battery FET
(ON)
Содержание CU405
Страница 1: ...Date May 2007 Issue 1 0 Service Manual Model CU405 Service Manual CU405 Internal Use Only ...
Страница 131: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 132 ...
Страница 143: ... 144 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 151: ... 152 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
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