Troubleshooting - NEC A3842 User Manual

NEC-ADA201 Eng/Fr. manual

Troubleshooting

SYMPTOMS POSSIBLE PROBLEM
No Sound
No power to unit.
From
Speakers
Volume level on
sound card or other
audio source may
be too low.
IntelliBase is muted.
Volume is too low.
Speaker is being
Distortion
overdriven by an
(i.e. static,
crackling, amplified
hissing) source.
Volume level on sound
card or other audio
source may be too high
and causing speaker to
be overdriven.
Sound card or specific
sound file/track may
be root of problem.
Sound
Audio cable is not
from only
properly connected.
one
speaker
NOTE: If the IntelliBase must be returned for repair, the unit must be
disconnected from the monitor and packed in its original packaging.
9/8/98 12:27 PM Page 17
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.
Check volume level of
sound card, audio source
and Windows mixer and
raise as necessary.
Make sure the mute button
is off and the indicator for
mute doesn't glow.
Make sure the volume
control is not at zero.
Make sure the IntelliBase is
connected to line-out jack
audio (unamplified) of sound card
and not speaker-out jack
(amplified).
Check volume level of
sound card or audio source
and lower as necessary.
Check speakers with
another audio source (CD-
ROM player) to see if sound
card or specific file/track
may be the problem.
Make sure the audio
connector is properly inserted
in the audio jack on the rear
side.
14
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.
Check with an alternate
audio source as mentioned
above.
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.