Peripheral-Related Symptoms; Keyboard/Touchpad-Related Symptoms - Acer Extensa 500 Service Manual

Peripheral-Related Symptoms

Symptom / Error
System configuration does
not match the installed
devices.
External display does not
work correctly.
USB does not work
correctly
Print problems.
Serial or parallel port device
problems.

Keyboard/Touchpad-Related Symptoms

Symptom / Error
Keyboard (one or more
keys) does not work.
Touchpad does not work.
Chapter 4
Action in Sequence
Enter BIOS Setup Utility to execute "Load Default
Settings", then reboot system.
Reconnect hard disk/CD-ROM/diskette drives.
Press Fn+F5, LCD/CRT/Both display switching
See "Running PQA Diagnostics Program." on
page 45.
System board
See "System Diagnostic Diskette" on page 44
System board
Ensure the "Parallel Port" in the "Onboard
Devices Configuration" of BIOS Setup Utility is set
to Enabled.
Onboard Devices Configuration
Run printer self-test.
Printer driver
Printer cable
Printer
System Board
Ensure the "Serial Port" in the Devices
Configuration" of BIOS Setup Utility is set to
Enabled.
Device driver
Device cable
Device
System board
Action in Sequence
Reconnect the keyboard cable.
Keyboard
System board
Reconnect touchpad cable.
Touchpad board
System board
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