Read JBL N 28 (serv.man2) User Guide / Operation Manual online
Declaration of Conformity
Kongevejen 194B
DK-3460 Birkerød
DENMARK
DK-3460 Birkerød
DENMARK
Steen Michaelsen
Birkerød. DENMARK. 8/99
declare in own responsibility, that the loudspeakers
described in this owner
’
s manual are in compliance with
technical standards
EN 50081-1:1992
EN 50082-1:1992
If there is no sound from
any of the speakers:
any of the speakers:
• Check that receiver/
amplifier is on and that a
source is playing.
amplifier is on and that a
source is playing.
• Review proper operation
of your receiver/amplifier.
of your receiver/amplifier.
If there is no sound coming
from one speaker:
from one speaker:
• Check the “Balance”
control on your receiver/
amplifier.
control on your receiver/
amplifier.
• Check all wires and
connections between
receiver/amplifier and
speakers.
connections between
receiver/amplifier and
speakers.
• Make sure all wires are
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
If the system plays at low
volumes but shuts off as
volume is increased:
volumes but shuts off as
volume is increased:
• Check all wires and
connections between
receiver/amplifier
and speakers.
connections between
receiver/amplifier
and speakers.
• Make sure all wires are
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
• If more than one pair of
main speakers is being
used, check the minimum
impedance requirements of
your receiver/amplifier.
main speakers is being
used, check the minimum
impedance requirements of
your receiver/amplifier.
If there is no (or low) bass
output:
output:
• Make sure the polarities
(+ and –) of the left and right
“Speaker Inputs” are
connected properly.
(+ and –) of the left and right
“Speaker Inputs” are
connected properly.
If there is no sound from the
center speaker:
center speaker:
• Make sure that your
receiver’s “Center-Channel”
mode is in the ”Normal“ or
”Wide“ position. If it is in
the ”Phantom“ position, the
center speaker will not play.
receiver’s “Center-Channel”
mode is in the ”Normal“ or
”Wide“ position. If it is in
the ”Phantom“ position, the
center speaker will not play.
• Check all connections
between processor/
amplifier and the center
speaker.
between processor/
amplifier and the center
speaker.
T R O U B L E S H O O T I N G
N28, N38, ND310 OM 8/5/99 4:51 PM Page 3
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