Power Supply Failure - Compaq ARMADA 6500 SM Service Manual

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Power Supply Failure

Problem
The computer is turned on using the power switch and
the following conditions apply:
•
There is no panel display
•
There is no noise coming from the HARD DRIVE
•
The power indicator light is off (AC operation).
Troubleshooting Procedure
If the computer is running on the battery:
•
The system could be in suspend. Press the
Suspend/Power 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 on the rear of the
computer next to the PS/2 connector.
If the computer is running on the AC adapter:
•
Make sure the AC adapter is plugged into an
operational power supply.
•
Make sure the AC adapter is connected securely
to the 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 computer
again.
•
Press the Suspend/Power button.
•
Press the reset button located on the rear of the
computer next to the PS/2 connector (Figure 1-
3).
If the above items do not solve the problem,
replace the DC-to-DC Converter.
Troubleshooting 3-3