14
Troubleshooting

Distortion

(i.e. static,

crackling,

hissing)

Speaker is being
overdriven by an
amplified audio
source.
Volume level on sound
card or other audio
source may be too high
and causing speaker to
be overdriven.
Volume level on
sound card or other
audio source may
be too low.
Depending on your sound
card, you may also turn off
amplifier on sound card
(check your sound card
manual).
For this check, disconnect
speakers from sound card
and plug into headphone
jack on front of CD-ROM
player or alternate line-level
audio source.
Check speakers with
another audio source (CD-
ROM player) to see if sound
card or specific file/track
may be the problem.
Check with an alternate
audio source as mentioned
above.
Make sure the IntelliBase is
connected to line-out jack
(unamplified) of sound card
and not speaker-out jack
(amplified).
Check volume level of
sound card or audio source
and lower as necessary.
Check volume level of
sound card, audio source
and Windows mixer and
raise as necessary.
Sound card or specific
sound file/track may
be root of problem.

SYMPTOMS

No Sound

From

Speakers

POSSIBLE PROBLEM

No power to unit.

NOTE

Provided power has been
verified, it is possible to test
the unit by disconnecting
the audio cable that is
connected to the computer
and reconnecting it to an
alternate audio source such
as a portable CD player.
SOLUTION
Make sure all connecting plugs
between the IntelliBase and
computer are fully seated.
Make sure the wall power outlet
or power strip has power.
Make sure the power switches
on the power strip and
IntelliBase are turned on.

Sound

from only

one

speaker

Audio cable is not
properly connected.
Make sure the audio
connector is properly inserted
in the audio jack on the rear
side.
IntelliBase is muted.
Volume is too low.
Make sure the mute button
is off and the indicator for
mute doesn’t glow.
Make sure the volume
control is not at zero.

NOTE: If the IntelliBase must be returned for repair, the unit must be

disconnected from the monitor and packed in its original packaging.

NEC-ADA201 Eng/Fr. manual 9/8/98 12:27 PM Page 17