Compaq Prosignia 190 Maintenance And Service Manual page 111

go through the following checklist for possible solutions:
Is the computer connected to an external power source, or does it have
a fully charged battery pack installed?
Are all cables connected properly and securely?
Did the diskette drive contain a nonbootable diskette when you turned
on the computer?
Have you installed all the needed device drivers? For example, if you
are using a mouse, you may need to install a mouse device driver.
Are printer drivers installed for each application?
Eliminating the typical problems described in this Troubleshooting section
may save you time and money. If the problem appears related to a software
application, check the documentation provided with the software. You may
discover something you can resolve easily by yourself.
If the condition persists, contact your Compaq authorized dealer or service
provider.
Click on a link below for Troubleshooting information regarding:
>Audio
>Battery
>CD/DVD drive
>Diskette/LS
120
>Hard Drive
>Infrared
>Keyboard
>Modem
>PC Card
>Power
>Screen
>USB