Acer Extensa 390, Руководство пользователя

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Troubleshooting
6-4
Questions Answers
No audio from the
computer.
q
The volume may be muted. In
Windows 95, look at the volume
control icon on the taskbar. If it is
crossed-out, click on the icon and
de-select the Mute option.
q
The volume level may be too low.
Press Fn-F5 to bring up the
volume control pop-up icon. Press
Fn-
→ →
to increase the volume.
If headphones, earphones or external
speakers are connected to the line-out
port on the computer’s rear panel, the
internal speakers automatically turn
off.
The keyboard
does not respond.
Try attaching an external keyboard to
the PS/2 connector on the computer’s
rear. If it works, contact your dealer
or an authorized service center as the
internal keyboard cable may be loose.
The serial mouse
does not work.
q
Make sure that the serial cable is
plugged securely into the serial
port.
q
Press Fn-F6 ( ) to enter Setup,
then press PgDn to see the System
Information Reference screen.
Check if the serial port is enabled.
If the serial port is disabled, you
need to reboot the machine and
press F2 during POST, then access
System Security. Move the cursor
to the serial port base address
parameter and change the setting.
See section 5.3.3 for details.