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Compaq Presario Series Maintenance and Service Guide
United States December 9, 2002
Presario 305 Model
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments
Index
Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware,
memory, and software problems. It also explains several types of common messages that may
be displayed on the screen. The following pages contain troubleshooting information on these
topics:
Audio Power Hard drive
Memory Diskette/Diskette drive Keyboard/Numeric keypad
Battery/Battery gauge Printer Hardware Installation
PC Card Display
USB
CD or DVD drive Touch Pad
Modem
Since symptoms can appear to be similar, carefully match the symptoms of the computer
malfunction against the problem description in the Troubleshooting tables to avoid a
misdiagnosis.
WARNING: To avoid a potential shock hazard during
troubleshooting procedures, disconnect all power sources
before removing the keyboard cover or the display bezel.
Before Replacing Parts
When troubleshooting a problem, check the following items for possible solutions before replacing
parts:
■ Verify that cables are connected properly to the suspected defective parts.
■ Verify that all required device drivers are installed.
■ Verify that all printer drivers have been installed for each application.
Obtaining Update Information with Info Messenger
Compaq Info Messenger allows you to set a customized search of the Compaq Web site. By
registering for this utility, you can stay up to date with software and hardware information
specific to your system.
■ To access Compaq Info Messenger, go to www.compaq.com and select Info
Messenger.
■ To register, follow the instructions on the Info Messenger page. When your
registration is complete, you can
■ implement your customized search whenever you prefer from the Info
Messenger page.
■ set Info Messenger to send you the information by email as it becomes
available.
Info Messenger will also inform you if there are updates to the system ROM
for your computer.
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