IBM ThinkPad 760C, Руководство по обслуживанию

Страница: 247 / 327

What If Your Computer Does Not Work?
Mwave DSP Feature Problems
Problem Action
All or some keys on the
external keyboard do not
work. Verify that:
The keyboard connector is connected to the correct side of the
keyboard/mouse connector.
The keyboard/mouse connector is correctly connected to the computer.
If the preceding items are correct, disconnect the keyboard/mouse connector
from the computer and verify that the operation of the system keyboard is
correct. If the system keyboard works, have the keyboard/mouse connector or
the external keyboard serviced.
A number appears when
you type an alphabetic
character. The Numeric Lock function is on. Press and hold Shift; then press NumLk.
Problem Cause and action
Sound Blaster support
cannot be enabled. This is probably because Mwave is being used for other functions, such as the
modem. Try disabling another function; then type
MWGAMES ON MIN
. The MIN
option enables Sound Blaster support using a minimum amount of Mwave
resources.
DOS games work slowly
in a Windows session. Some DOS games run slower in a Windows DOS session than in native DOS.
Check the documentation of your game for special instructions about improving
performance. Configure your computer to use the VGA display driver rather
than a higher resolution or less efficient driver. Determine if your game allows
you to turn off “background music” and only play special effects.
A Windows error message
states that no MIDI device
is available. This is often because the DSP resources have been used up. Close an
application that is using DSP, and retry the failing function.
A Windows error message
states that no WAV device
is available. This is often because the DSP resources have been used up. Close an
application that is using DSP, and retry the failing function.
230
IBM ThinkPad 760C User's Guide