dynabook SATELLITE C50-H, Maintenance Manual

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8
2 Troubleshooting 2.3 Power Supply
2.3 Power Supply
The power supply in the computer controls many functions and components. To check if the
power supply is defective or malfunctioning, follow the troubleshooting procedures below
as instructed.
Procedure 1 Power Icon Check
Procedure 2 Connection Check
Procedure 3 Replacement Check
Procedure 1 Power Icon Check
The following power LED indicates the power supply status:

DC IN/Battery Charge LED
The power supply controller displays the power supply status through the DC IN/Battery
Charge LED as in the table below.

DC IN/Battery Charge LED
DC IN/Battery Charge LED
Power Supply Status
DC IN/Battery Charge LED DC IN/Battery Charge LED
On in White On in White
Both DC Power is been supplying from AC
Adapter and
Both DC Power is been supplying from AC
Adapter and
Battery is fully Charged. Battery is fully Charged.
On in Amber On in Amber
If the DC IN/Battery Charge LED is off, follow the steps below:
1. Remove the battery pack and the AC adapter to shut off power supply to the computer.
Shut down the computer. Next, remove the AC adapter. Then disassemble the
computer and replace the battery. Next, assemble to check the battery.
2. Attach the battery and AC adapter back again.
If the DC IN/Battery Charge LED is still off, follows the steps below:
Check 1
Make sure the DC IN/Battery Charge LED goes on in White or Amber. If it does not, go to
Procedure 2.
Check 2