Solving Display Problems - Compaq 1600XL Maintenance & Service Manual

Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
Problem
(Continued)
Diskette drive cannot
read a diskette.
Cannot boot from
diskette.

Solving Display Problems

This section lists some common causes and solutions for computer display and external
monitor problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor by
disconnecting the monitor from the Notebook, then completing the following steps:
1. Turn off the monitor.
2. Turn off the Notebook.
3. Disconnect the monitor signal cable from the Notebook.
4. Turn on the monitor and allow it to warm up for one minute.
The display should be white. A narrow black border may also appear on the left and right
sides of the display. Either of these displays indicates that the monitor is working properly.
26 T
ROUBLESHOOTING
Presario 1600XL Series
Solving Diskette Drive Problems
Probable Cause
Drive error has occurred.
Diskette is not formatted.
Bootable diskette is not in
drive A.
Diskette Boot has incorrect
setting in Computer Setup.
P
RESARIO
Solution(s)
Run Computer Checkup from the
Compaq Diagnostics diskette.
Format the diskette. At the
system prompt, enter
FORMAT A:
Put the bootable diskette in drive
A.
Run Computer Setup and set
diskette as first to boot.
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OTEBOOK AINTENANCE AND
G 1600XL S
ERVICE UIDE ERIES