2.3 Power Supply  2 Troubleshooting 
Satellite/Satellite Pro/A500/A505/A507/dynabook     Maintenance Manual  2-7 
   DC IN LED 
DC IN LED  Power supply status 
On in White   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, follows the steps below: 
 
Check 1  Make sure the DC IN LED goes on in White.  If it does not, go to Procedure 2. 
 
Check 2  Make sure the Battery LED goes on in Umber or White.  If it does not, go to 
Procedure 3.