NEC ShieldPRO N22A User Manual page 138

(14) Software troubles
Symptoms
An application program operates improperly.
(15) Sound troubles
Symptoms
Sound does not replay.
Sound is replayed but distorted.
The sound system fails in recording.
An external microphone or sound device does not
operate.
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 Confirm that the application program is installed properly.
 If an error message appears on the display screen, refer to the
documentation of the application program to search for required
information.
 If N22A is shut down clearly, reboot N22A.
<Resetting N22A>
If an error occurs to cause programs being used to hang, N22A may
have to be reset (rebooted).
If N22A seems to hang, wait for a while. N22A may provide data
processing.
Check the LED indicating use or no use of the HDD periodically.
If the LED blinks irregularly, programs may access to the HDD to
disable the keyboard. When N22A does not operate at all and the
"Restart" feature of OS is unavailable, reset N22A.
Follow the procedure below to reset N22A:
1. Press Ctrl + Alt + Del.
2. If the above step does not work well, continue to press the power
button for four seconds or longer to shut down N22A. Wait for
five seconds or longer and turn on the power of N22A again.
The reset operation erases all data not stored.
 Check if the mute feature is enabled.
Click [Start]  [Control Panel]  [Sounds, Speech and Audio
Devices]  [Sounds and Audio Devices] to display the [Sound and
Audio Devices Properties] dialog box. If the [Mute] checkbox in the
[Volume] tab of the [Sound and Audio Devices Properties] dialog
box is checked, uncheck the checkbox.
 Confirm that the volume level is not set to too low.
 The volume may often be too low. Press Fn + F9 to turn up the
volume.
 Confirm that the sound driver is installed properly.
 Confirm that N22A is not in the suspend (standby) state.
 If external speakers are used, confirm that they are connected to
N22A properly.
Confirm that the volume is set to neither too high nor too low. In most
cases, because the volume is set to too high, some electronic audio
parts lead sound distortion.
Adjust the replay or record sound level.
 Confirm that a microphone is connected to the mating connector on
N22A properly.
 Click the speaker icon on the task bar to check the Windows
volume.
 Check the volume control of N22A.
Action
Action