Toshiba Tecra A4 (PTA42) - Manual (Page 140)

User’s Manual 9-16
Troubleshooting
Sound system
TV output signal
Refer also to your Personal Conferencing Kit’s documentation.
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.
If problems persist, contact your dealer.
Problem Procedure
Display on TV is poor Make sure the TV type is correct for your area:
NTSC (US, JAPAN), PAL (Europe).
No display Try adjusting the contrast and brightness controls
on the external monitor.
Press hotkeys Fn + F5 to change the display.
Refer to Chapter 5,
The Keyboard .
NOTE: If you turn the computer off in Resume
mode while the display is on TV, the computer will
select either the internal LCD or an external
computer CRT as the display device.
If problems persist, contact your dealer.