Toshiba NB305-N411BL User Manual - Page 110

Sound system, Check Sound Preferences. Make sure the sound

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Troubleshooting Problem No display Display error occurs Procedure Try adjusting the contrast and brightness controls on the external monitor. Press hot keys FN + F5 to change the display priority and make sure it is not set for the internal display. Check that the cable connecting the external monitor to the computer is attached firmly. If problems persist, contact your dealer. Sound system Problem No sound is heard Procedure Check the software volume settings. Make sure the headphone connection is secure. Check Sound Preferences. 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. 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 KB/Mouse Legacy Emulation item in HW Setup is set to Enabled. If problems persist, contact your dealer. User's Manual 9-9

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User’s Manual
9-9
Troubleshooting
Sound system
USB
Refer also to your USB device’s documentation.
No display
Try adjusting the contrast and brightness
controls on the external monitor.
Press hot keys
FN
+
F5
to change the display
priority and make sure it is not set for the internal
display.
Display error occurs
Check that the cable connecting the external
monitor to the computer is attached firmly.
If problems persist, contact your dealer.
Problem
Procedure
Problem
Procedure
No sound is heard
Check the software volume settings.
Make sure the headphone connection is secure.
Check Sound Preferences. 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.
If problems persist, contact your dealer.
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 KB/Mouse Legacy
Emulation item in HW Setup is set to
Enabled
.
If problems persist, contact your dealer.