Acer Aspire 5740 Service Manual page 105

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Power Management-Related Symptoms
Symptom / Error
The system doesn't resume from
hibernation mode.
The system doesn't resume from standby
mode after opening the LCD.
Battery fuel gauge in Windows doesn't 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.
Touchpad does not work.
Chapter 4
Action in Sequence
See "Save to Disk (S4)" on page 20.
Hard disk connection board
Hard disk drive
System board
See "Save to Disk (S4)" on page 20.
LCD cover switch
System board
Remove battery pack and let it cool for 2 hours.
Refresh battery (continue 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
Onboard Devices Configuration
Run printer self-test.
Printer driver
Printer cable
Printer
System Board
Device driver
Device cable
Device
System board
Action in Sequence
Reconnect the keyboard cable.
Keyboard
System board
Reconnect touchpad cable.
Touchpad board
System board
97

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