Acer Aspire 1640 Service Guide
Page 80
... Sequence Power Management-Related Symptoms Symptom / Error The system will not enter hibernation The system doesn't enter hibernation mode and four short beeps every minute. Audio driver Speaker System board Speaker System board Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. Press Fn+oand see...
... Sequence Power Management-Related Symptoms Symptom / Error The system will not enter hibernation The system doesn't enter hibernation mode and four short beeps every minute. Audio driver Speaker System board Speaker System board Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. Press Fn+oand see...
Aspire 1640 User's Guide
Page 34
... the computer. The infrared port does not work . Check the following: • Make sure that it is heard from the computer. English 24 No audio is crossed-out, click on the icon and deselect the Mute all option. • The volume level may be too low. If it is a ... the two infrared ports. The keyboard does not respond. There is enabled. • Make sure both devices (for file transfers) or you have the appropriate drivers (for more detail. • If headphones, earphones or external speakers are IrDA-compliant. Simply insert the tip of 1 meter apart. • Make sure there...
... the computer. The infrared port does not work . Check the following: • Make sure that it is heard from the computer. English 24 No audio is crossed-out, click on the icon and deselect the Mute all option. • The volume level may be too low. If it is a ... the two infrared ports. The keyboard does not respond. There is enabled. • Make sure both devices (for file transfers) or you have the appropriate drivers (for more detail. • If headphones, earphones or external speakers are IrDA-compliant. Simply insert the tip of 1 meter apart. • Make sure there...