2.3 Power Supply 2 Troubleshooting
 DC IN LED
DC IN LED Power supply status
On in Blue DC power being supplied (from the AC adapter)
Off Battery damage and can’t charge during DC-in.
Off Else
If the DC IN LED off, follow the steps below:
1. Remove the battery pack and the AC adapter to shut off power supply to the
computer.
2. Attach the battery and AC adapter back again.
If the LED still off, follow the steps below:
Check 1 Make sure the DC IN LED goes on in Blue. If it does not, go to Procedure 2.
Check 2 Make sure the Battery LED goes on in Amber or Blue. If it does not, go to
Procedure 3.
Qosmio F40/F45 Maintenance Manual 2-7
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