Charger Troubleshooting - LG CU920 Manual

4. TROUBLE SHOOTING

4.11 Charger Troubleshooting

TA
(5.1V)
Charging Procedure
- Connect TA or USB Cable
- Control the charging current by PM6650 IC
- Charging current flows into the battery
Check Point
- Connection of TA or USB Cable
- Charging current path
- Battery
LGE Internal Use Only
Charging Current Flow
Troubleshooting Setup
- Connect TA and battery to the phone
Troubleshooting Procedure
- Check the charger (TA or USB Cable) connector
- Check the charging current Path
- Check the battery
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Pass Tr
Battery FET
Main
4.2~4.25V
Battery
Only for training and service purposes
(ON)
(ON)