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MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index Page Preface -or- Notice Specifications Battery Pack
Product Description Illustrated Parts Catalog Troubleshooting Removal & Replacement
Troubleshooting
Preliminary Steps
*
>Preliminaries
>Clearing
CMOS
>Power-on
Self-test
>Compaq
Diagnostics
>Diagnostic
Error codes
>Test Utilities
>Solving
Minor
Problems
>Contacting
Compaq
*
Before running POST, complete the following preliminary steps:
1. If a power-on password has been established, type the password and
press the Enter key. If the password is not known, clear the password.
2. Run Computer Checkup.
3. Turn off the computer and its external devices.
4. Disconnect any external devices that you do not want to test. Do not
disconnect the printer if you want to test it or use it to log error
messages.
IMPORTANT:
If the problem only occurs when an external device is
connected to the computer, the problem may be related to
the external device or its cable. Verify this by running
POST with and without the external device connected.
5. Install loopback plugs in the serial and parallel connectors if you would
like to test these ports.
6. Ensure the hard drive is installed in the computer.
7. Ensure that the battery pack is inserted in the computer and the
computer is connected to an external AC power source.
When the preliminary steps are completed, you are ready to run POST.
Revised: September 16, 1999