MartinLogan EFX Manuel De L'utilisateur page 34

t
roubleshootIng
No Output
• Check that all your system components are turned on.
• Check your speaker wires and connections.
• Check all interconnecting cables.
• Try hooking up a different set of speakers. The lack of output
could point to a problem with other equipment in your sys-
tem (amp, pre-amp, processor, etc.)
Weak or no Output from Electrostatic Panel, Loss of Highs
• Check the power cord. Is it properly connected to the speak-
er and to the wall?
• Is the power cord connected to a switched outlet?
• Dirt and dust may need to be vacuumed off. Please see the
FAQ regarding vacuuming.
• If using a single-wire connection, check to make sure that the
jumper clips are in place and that the binding posts are firmly
hand-tightened.
• Check the binding posts. Are the dirty? If so clean them with
rubbing alcohol.
• Check the binding posts. Are the loose? Make sure they are
firmly hand-tightened.
• Has a foreign substance (such as a household cleaning chem-
ical or soap) been applied to the panel? If so the speaker will
require servicing.
Popping and Ticking Sounds, Funny Noises
• These occasional noises are harmless and will not hurt
your audio system or your speakers. All electrostatic speak-
ers are guilty of making odd noises at one time or another.
It is the result of airborne contaminates (most notably dust).
Vacuuming is recommended.
• These noises may be caused by dirt and dust particles collect-
ing on the speaker, by high humidity.
• Dirt and dust may need to be vacuumed off. Please see the
FAQ regarding vacuuming.
Exaggerated Highs, Brightness
• Check the toe-in of the speakers. Read the Placement section
of this manual for more information.
Muddy Bass
• Check placement. Try moving the speakers closer to the front
and sidewalls.
• Check the type of feet that are being used. Try attaching the
coupling spikes.
• Possibly means low electrostatic panel output. See 'Weak
Output from Electrostatic Panel, Loss of Highs'.
34 Troubleshooting
Lack of Bass, No Bass
• Check your speaker wires. Is the polarity correct?
• Check your speaker wires if bi-wiring.
• If using a single-wire connection, check to make sure that the
jumper clips are in place and that the binding posts are firmly
hand-tightened.
• Check the binding posts. Are the dirty? If so clean them with
rubbing alcohol.
• Check the binding posts. Are the loose? Make sure they are
firmly hand-tightened.
Poor Imaging
• Check placement. Are both speakers the same distance from
the walls? Do they have the same amount of toe-in? Try mov-
ing the speakers away from the back and sidewalls.
• Check the polarity of the speaker wires. Are they connected
properly?
• Try switching the left speaker with the right.
• Are your speakers set up in an L-shaped room? If so, you may
experience off-center imaging. Talk to your dealer about
acoustical room treatment options.