Acer Aspire 9300 Service Manual page 100

Power Management-Related Symptoms
Symptom/Error
The system does not
enter standby mode after
closing the LCD.
The system does not
resume from hibernation
mode.
The system does not
resume from standby
mode after opening the
LCD.
Battery fuel gauge in
Windows does not go
higher than 90%.
System hangs
intermittently.
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.
Chapter 4
Action in Sequence
LCD cover switch
System board
Hard disk connection board
Hard disk drive
System board
LCD cover switch
System board
Remove battery pack and let it cool for two hours.
Refresh battery (continue to use battery until power off, then
charge battery).
Battery pack
System board
Reconnect hard disk/CD-ROM drives.
Hard disk connection board
System board
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
System board
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
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