User's Manual Troubleshooting 9-13
Version
5
Last Saved on 20/12/99 04:11
Portege 7140CT User's Manual – 7140_UK.doc – ENGLISH – Printed on 20/12/99 as
IM_714UK
Sound system
Problem Procedure
No sound is heard Adjust the volume control dial.
Check the software volume settings.
Make sure the headphone connection is secure.
Check
Windows Device Manager
. Make sure
the sound function is enabled and that settings
for I/O address, Interrupt level and DMA are
correct for your software and do not conflict with
other hardware devices that you may have
connected to the computer.
Annoying sound
is heard
You may be experiencing feedback. Refer to Using
the microphone in Chapter 4, Operating Basics.
If problems persist, contact your dealer.
USB
Refer also to your USB device’s documentation.
Problem Procedure
USB device does not
work
Check for a firm cable connection between the
USB ports on the computer and the USB device.
Make sure the USB device drivers are properly
installed. Refer to your Windows documentation
for information on checking the drivers.
If you are using an operating system that does
not support USB, you can still use a USB mouse
and/or USB keyboard. If these devices do not
work, make sure the USB Legacy Emulation item
in TSETUP is set to
Enabled
.
This feature works only for mouse and keyboard.
Also, the mouse and keyboard must be
connected, before you boot the computer.
If problems persist, contact your dealer.
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