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2.3 Power Supply 2 Troubleshooting
DC IN LED
DC IN LED Power supply status
On in Green 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 Green. If it does not, go to Procedure 2.
Check 2 Make sure the Battery LED goes on in Amber or Green. If it does not, go to
Procedure 3.
Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual 2-7