Charger Troubleshooting - LG -P940 Service Manual

4.10 Charger Troubleshooting

LGP940 micro USB is located at the side of the terminal set, charging current flows from external micro USB
Connector directly to the battery. The charger IC maximum charging current is set around 770mA
Charging Procedure
- Connect TA or u-USB Cable
- Control the charging current by BQ25040 IC
- Charging current flows into the battery
Troubleshooting Check Point
- Connection of TA or USB Cable
- Charging current path (BQ25040)
- Battery
During charging operation test point signal goes low and when stop charging goes high.
TP(701
CHG_EN_SET_N)
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4. TROUBLE SHOOTING
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