Technical data

Troubleshooting
DIGITAL HiNote Ultra 2000 Service Guide
3–3
Power Supply Failure
Problem Troubleshooting Procedure
You turn On the power switch and the following
conditions apply:
•
There is no panel display
•
There is no noise coming from the HDD
•
The power indicator light is off (AC
operation).
If you are operating the notebook computer using
the battery:
•
The system could be in suspend. Press the
Suspend/Resume button.
•
The battery connection is loose. Remove
and reinstall the battery.
•
The battery power is depleted. Plug in the
AC adapter, or replace the battery.
•
The system could be experiencing a hang.
Press the reset button located under the
keyboard (
Figure 1-1
).
If you are operating the notebook computer using
the AC adapter:
•
Check that the AC adapter is plugged into an
operational power supply.
•
Check that the AC adapter is connected
securely to the notebook computer’s AC
adapter socket.
•
Check to see if the Power LED on the
computer is lit. If not lit, then the AC
adapter may be bad. Replace the AC
adapter, and test the notebook computer
again.
•
Press the Suspend/Resume button.
•
Press the system "Reset Button" under the
keyboard (
Figure 1-1
).
If the above items do not solve the problem,
replace the DC-to-DC Converter (Figure 4-25).