Sony PCG-F450 - Manual (Page 73)

Troubleshooting $!
My speakers have no sound
❑
If the built-in speakers are turned off, press Fn+F3 to turn on the
speakers.
❑ If the speaker volume is turned to the minimum, press Fn+F4, and
then press
or ➜ to increase the volume.
❑ If your computer is powered by batteries, check that the battery packs
are inserted properly and that they are charged.
❑ If you are using an application that has its own volume control, check
that the volume is turned up.
❑ Check the volume controls in Windows 98.
❑ If you connect external speakers, check that the speakers are properly
connected and the volume is turned up. If the speakers have a mute
button, make sure it is off. If the speakers are powered by batteries,
check that the batteries are inserted properly and that they are
charged.
❑ If you have connected an audio cable to the Headphone connector,
disconnect the cable.
My modem does not work
❑
Check that the phone line is plugged into the line jack. See
“Connecting a Phone Line” on page 44 for details.
❑ Check that the phone line is working. You can check the line by
plugging in an ordinary phone and listening for a dial tone.
❑ Check that the phone number the program is dialing is correct.
❑ Check that the software you are using is compatible with the
notebook computer modem. (All preinstalled programs are
compatible.) Call the software publisher or Sony Customer Support.
My modem connection is slow
The computer’s modem uses V.90 technology. Many factors influence
modem connection speed, including telephone line noise or compatibility
with telephone equipment (such as fax machines or other modems). If
you think your modem is not connecting properly to other PC-based
modems, fax machines, or your Internet Service Provider, check the
following:
❑ Have your phone company check that your phone line is free from
any line noise.
➜