Troubleshooting - NEC USB User Manual

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Troubleshooting

SYMPTOMS POSSIBLE PROBLEM
IntelliBase does not No power to unit.
™
operate.
USB audio does not
USB cable between IntelliBase
operate properly.
and computer is not properly
connected or defective.
IntelliBase Control Panel software Make sure the IntelliBase Control Panel
is not installed on host computer. software is properly installed and active
System requirements are not
adequate for IntelliBase operation. to operate the IntelliBase are met.
USB audio is distorted Volume level or input signal
(i.e. static, crackling, from sound file is too high.
hissing, etc.).
Sound only from Balance control is set to
one speaker when
one extreme.
operating in analog
audio mode.
USB devices plugged USB cable between IntelliBase
into the IntelliBase and computer is not properly
do not work. connected or defective.
USB device is plugged into the
wrong USB port.
There is a problem with the
host computer or software.
There is a problem with the
specific USB device.
Analog audio is Speaker is being overdriven
distorted (i.e. static, by an amplified audio source.
crackling, hissing, etc.)
Volume level on sound card or
other audio souce may be too
high causing the speakers to be
overdriven.
Sound card or specific file/track
may be the cause of the problem. (CD-ROM player) to isolate problem.
Sound only from one Audio cable is not properly
speaker when connected.
operating in analog
audio mode.
Microphone sound Microphone is too close
quality is distorted to speakers in IntelliBase.
(i.e. static, crackling,
feedback, etc.).
NOTE: If the IntelliBase must be returned for repair, the unit must be
disconnected from the monitor and packed in its original packaging.
12/21/98 11:21 AM Page 29
SOLUTION
Make sure the adapter cable is properly
seated into the DC IN jack on the rear of
the IntelliBase and the adapter is connected
to a suitable power source.
Make sure both ends of the USB cable are
fully seated or try replacing the USB cable.
on host computer.
Refer to User's Manual for details.
Verify the system requirements necessary
Turn down the volume level on the
IntelliBase or by using the control panel
software GUI.
Adjust Balance control to center position
by using the control panel software GUI.
Make sure both ends of the USB cable are
fully seated or try replacing the USB cable.
USB devices connected to the IntelliBase
must be plugged into the output ports.
These ports are found on the right side
of the IntelliBase.
Verify that USB devices will work when
connected directly to the host computer.
Using the same output port, try substituting
a different USB device.
Make sure the IntelliBase is connected to the Depending on the sound card, you may
line-out jack (unamplified) of the sound card also turn off the amplifier on the sound
and not the speaker-out jack (amplified).
Check volume of sound card or audio
source and lower as necessary.
Check speakers using another audio source For this check, disconnect the IntelliBase
Make sure the audio cable is properly
seated into the audio input jack on the rear
of the IntelliBase.
Move microphone away from IntelliBase
or turn down volume level on IntelliBase.
25
NOTE
The green POWER indicator will light
when power is applied to the IntelliBase.
The green USB indicator will light when
the USB line is active.
The IntelliBase Control Panel icon should
appear in the tray when active.
The IntelliBase requires Windows 98
®
to operate properly.
It may also be necessary to reduce the
BASS level on certain types of music.
Balance (and other controls) can be set to
default position by using the Reset button
on GUI.
The green USB indicator will light when
the USB line is active
Do not plug a USB device into the rear
of the IntelliBase.
This USB port must be connected
to the host computer.
For this check, disconnect the IntelliBase
from the computer and plug the USB
device (mouse, keyboard, etc.) directly
into the rear of the computer.
As an alternate test, try connecting the
suspected USB device directly to the host
computer.
card (check your sound card manual).
from the sound card and plug into
headphone jack on CD-ROM player
or alternate line-level audio source.
Refer to microphone manual for further
information.