Compaq 12XL500 Models XL300, XL300A, and XL300B - Maintenance & Service Gu - Page 56

Troubleshooting without Diagnostics, Before Replacing Parts, CONFIG.SYS, AUTOEXEC.BAT - presario drivers

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Presario 1200XL Series Model XL300, XL300A, and XL300B Troubleshooting without Diagnostics This section provides information for identifying and correcting 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 about: Audio Battery CD or DVD Drive Diskette Drive Display Hard Drive Hardware Installation Memory PC Card Power Printer TouchPad Keyboard/Numeric Keypad Since symptoms can be similar, carefully match the symptoms of the computer malfunction against the problem description in the tables to avoid a misdiagnosis. Å 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 Verify that cables are connected properly to the parts that are suspected to be defective. • Run Computer Setup after connecting external devices. • Verify that all required device drivers are installed. • Verify that all required changes have been made to the CONFIG.SYS file. • Verify that all required changes have been made to the AUTOEXEC.BAT file. • Verify that all printer drivers have been installed for each application. PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES TROUBLESHOOTING 19

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P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1200XL S
ERIES
T
ROUBLESHOOTING
19
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Troubleshooting without Diagnostics
This section provides information for identifying and correcting 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
about:
Since symptoms can be similar, carefully match the symptoms of the computer malfunction
against the problem description in the tables to avoid a misdiagnosis.
Å
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
Verify that cables are connected properly to the parts that are suspected to be defective.
•
Run Computer Setup after connecting external devices.
•
Verify that all required device drivers are installed.
•
Verify that all required changes have been made to the
CONFIG.SYS
file.
•
Verify that all required changes have been made to the
AUTOEXEC.BAT
file.
•
Verify that all printer drivers have been installed for each application.
Audio
Memory
Battery
PC Card
CD or DVD Drive
Power
Diskette Drive
Printer
Display
TouchPad
Hard Drive
Keyboard/Numeric Keypad
Hardware Installation