NEC ShieldPRO N22A, Руководство пользователя, Страница: 134 / 173

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(8) Troubles of keyboard, mouse and touch pad
Symptoms Action
The keyboard does not respond to any inputs. Connect an external USB keyboard to N22A and check if the
keyboard can operate properly. If so, the built-in keyboard cable may
be defected. Contact your service representative.
The numerical keypad is disabled.
Confirm that [Num Lk] is ON (the NumLk LED illuminates in
green).
The external USB keyboard and/or USB mouse
do not operate. Check if the USB cables are connected properly.
The serial mouse does not operate.

Confirm that the mouse cable is connected properly.

Connect the mouse before booting N22A.

Confirm that the serial port is enabled on the BIOS Setup Menu.
The touch pad does not operate or makes
responses only slowly.

Check if the touch pad is dirt.

If operated by excess force or other than finger cushions, the touch
pad may operate improperly.

If you touch more than one point, the touch pad does not operate
normally.
The touch panel does not operate or the pointer
operates invalidly. Confirm that the driver and utility software of the touch panel are
installed.
Calibrate the touch panel by using the utility software.
(9) Troubles of network (LAN)
Symptoms Action
N22A cannot connect with network.

The connection may be invalid. Contact your network administrator
to check if N22A is connected to the relevant hub through a LAN
cable.

The setting may be invalid. For example, the protocol or the domain
work group may be set improperly or the computer account may not
be put on the primary domain controller. For details, ask your
network administrator.
Only the [Whole Network] icon appears in the
[My Network] or [Network Computer] dialog
box. It may take a rather long time until the display appears. Wait for a
while and click [Refresh] on the [View] menu. If the display status
remains unchanged, the network may be connected improperly or
network software may be set inappropriately.
Check the connection and network software.
Only the own computer appears in the [My
Network] or [Network Computer] dialog box. It may take a rather long time until the display appears. Wait for a
while and click [Refresh] on the [View] menu. If the display status
remains unchanged, check if the domain or work group to be
connected matches the setting domain or work group.
To see the setting domain or work group, click [Start]

[Control
Panel]

[Performance and Maintenance]

[System] to display the
[System Properties] dialog box and select the [Computer Name] tab on
the dialog box.