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Troubleshooting Symptom Charts/Power - 6
After you remove
battery, some Control
Panel settings are
different
1 Connect power adapter to unit for 24 hours to see if backup
battery is just depleted. (It takes approximately 48 hours to
fully charge the backup battery.)
2 Check backup battery cable and connections.
3 Replace backup battery.
4 Replace PMU card.
5 Replace cable from PMU to I/O logic board.
6 Replace I/O logic board.
Power adapter is
plugged in, but
Control Strip doesn’t
indicate adapter is
connected
1 Verify that power adapter is connected correctly and the
power cord is plugged solidly in the adapter.
2 Verify that there is power at the outlet.
3 Try known-good power adapter.
4 Replace sound card.
5 Replace PMU card.
6 Replace PMU cable.
7 Replace I/O logic board.