Compaq Presario 1800T Maintenance And Service Manual page 5

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Troubleshooting
Preliminary
Steps
This section covers troubleshooting information for the Compaq Presario 1800 Series
Portable Computers. The basic steps in troubleshooting include:
Clearing the
Power-On
Password
Power-On Self
Test (POST)
Compaq
Diagnostics
Diagnostic Error
Codes
Troubleshooting
Without
Diagnostics
Solving Minor
Problems
Contacting
Compaq
Support
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
Pin Assignments | Battery Pack Operations
1. Follow the Preliminary
2. Run the Power-On Self-Test
3. Follow the recommended actions described in the diagnostic tables if you
are unable to run POST or if POST displays an error message.
When following the recommended actions in the Sections on
Diagnostic Error Codes
each recommended action until the problem is solved and no error message
occurs. Once the problem is solved, do not complete the remaining
recommended actions.
If the problem is intermittent, check the computer several times to
NOTE:
verify that the problem is solved.
Steps.
(POST).
perform them in the order listed. Rerun POST after
POST and